Report Analysis

Generated at 2020-10-11T16:59:18+0000 for charles.hoffman@me.com. This page will remain online for about 48 hours.

Report

Submitted: https://www.sec.gov/Archives/edgar/data/1652044/000165204419000004/goog-20181231.xml
For more information: http://logicalcontracts.com/xbrl-and-sbrm-reporting/
DISCLAIMER: this analysis is provided by software still under development, and likely incomplete or even erroneous; do NOT use it other than for experimental, inconsequential purposes

User Alterations

NONE

	TERMS
0001000 - Document - Document and Entity Information	Structures	Facts
1001000 - Statement - CONSOLIDATED BALANCE SHEETS	Structures	Facts
1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)	Structures	Facts
1002000 - Statement - CONSOLIDATED STATEMENTS OF INCOME	Structures	Facts
1003000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME	Structures	Facts
1003501 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical)	Structures	Facts
1004000 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY	Structures	Facts
1005000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS	Structures	Facts
2101100 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies	Structures	Facts
2102100 - Disclosure - Revenues	Structures	Facts
2103100 - Disclosure - Financial Instruments	Structures	Facts
2104100 - Disclosure - Variable Interest Entities (VIEs)	Structures	Facts
2106100 - Disclosure - Debt	Structures	Facts
2107100 - Disclosure - Supplemental Financial Statement Information	Structures	Facts
2108100 - Disclosure - Acquisitions	Structures	Facts
2109100 - Disclosure - Goodwill and Other Intangible Assets	Structures	Facts
2111100 - Disclosure - Commitments and Contingencies	Structures	Facts
2112100 - Disclosure - Stockholders' Equity	Structures	Facts
2113100 - Disclosure - Net Income Per Share	Structures	Facts
2114100 - Disclosure - Compensation Plans	Structures	Facts
2115100 - Disclosure - Income Taxes	Structures	Facts
2116100 - Disclosure - Information about Segments and Geographic Areas	Structures	Facts
2131100 - Schedule - Schedule II: Valuation and Qualifying Accounts	Structures	Facts
2201201 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Policies)	Structures	Facts
2302301 - Disclosure - Revenues (Tables)	Structures	Facts
2303301 - Disclosure - Financial Instruments (Tables)	Structures	Facts
2306301 - Disclosure - Debt (Tables)	Structures	Facts
2307301 - Disclosure - Supplemental Financial Statement Information (Tables)	Structures	Facts
2309301 - Disclosure - Goodwill and Other Intangible Assets (Tables)	Structures	Facts
2311301 - Disclosure - Commitments and Contingencies (Tables)	Structures	Facts
2313301 - Disclosure - Net Income Per Share (Tables)	Structures	Facts
2314301 - Disclosure - Compensation Plans (Tables)	Structures	Facts
2315301 - Disclosure - Income Taxes (Tables)	Structures	Facts
2316301 - Disclosure - Information about Segments and Geographic Areas (Tables)	Structures	Facts
2401402 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details)	Structures	Facts
2402402 - Disclosure - Revenues (Revenue by Segment) (Details)	Structures	Facts
2402403 - Disclosure - Revenues (Revenue by Geographic Location) (Details)	Structures	Facts
2402404 - Disclosure - Revenues (Narrative) (Details)	Structures	Facts
2403402 - Disclosure - Financial Instruments (Debt Securities) (Details)	Structures	Facts
2403403 - Disclosure - Financial Instruments (Narrative) (Details)	Structures	Facts
2403404 - Disclosure - Financial Instruments (Contractual Maturity Date of Marketable Debt Securities) (Details)	Structures	Facts
2403405 - Disclosure - Financial Instruments (Gross Unrealized Losses and Fair Values for Investments in Unrealized Loss Position) (Details)	Structures	Facts
2403406 - Disclosure - Financial Instruments (Non-Marketable Debt Securities) (Details)	Structures	Facts
2403407 - Disclosure - Financial Instruments (Marketable Equity Securities) (Details)	Structures	Facts
2403408 - Disclosure - Financial Instruments (Measurement Alternative Investments) (Details)	Structures	Facts
2403409 - Disclosure - Financial Instruments (Fair Values of Outstanding Derivative Instruments) (Details)	Structures	Facts
2403410 - Disclosure - Financial Instruments (Effect of Derivative Instruments on Income and Accumulated Other Comprehensive Income) (Details)	Structures	Facts
2403412 - Disclosure - Financial Instruments (Offsetting of Financial Assets and Financial Liabilities) (Details)	Structures	Facts
2404401 - Disclosure - Variable Interest Entities (VIEs) (Narrative) (Details)	Structures	Facts
2406402 - Disclosure - Debt (Narrative) (Details)	Structures	Facts
2406403 - Disclosure - Debt (Long-Term Debt) (Details)	Structures	Facts
2406404 - Disclosure - Debt (Future Principal Payments for Borrowings) (Details)	Structures	Facts
2407402 - Disclosure - Supplemental Financial Statement Information (Property and Equipment) (Details)	Structures	Facts
2407403 - Disclosure - Supplemental Financial Statement Information (Accrued Expenses and Other Current Liabilities) (Details)	Structures	Facts
2407404 - Disclosure - Supplemental Financial Statement Information (Components of Accumulated Other Comprehensive Income) (Details)	Structures	Facts
2407405 - Disclosure - Supplemental Financial Statement Information (Reclassifications Out of Accumulated Other Comprehensive Income (Loss)) (Details)	Structures	Facts
2407406 - Disclosure - Supplemental Financial Statement Information (Components of Other Income (Expense), Net) (Details)	Structures	Facts
2408401 - Disclosure - Acquisitions (Narrative) (Details)	Structures	Facts
2409402 - Disclosure - Goodwill and Other Intangible Assets (Changes in Carrying Amount of Goodwill) (Details)	Structures	Facts
2409403 - Disclosure - Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details)	Structures	Facts
2409404 - Disclosure - Goodwill and Other Intangible Assets (Narrative) (Details)	Structures	Facts
2409405 - Disclosure - Goodwill and Other Intangible Assets (Expected Amortization Expense for Acquisition-Related Intangible Assets) (Details)	Structures	Facts
2411402 - Disclosure - Commitments and Contingencies (Future Minimum Payments Under Non-Cancelable Operating Leases, Along with Sublease Income Amounts) (Details)	Structures	Facts
2411403 - Disclosure - Commitments and Contingencies (Narrative) (Details)	Structures	Facts
2412401 - Disclosure - Stockholders' Equity (Narrative) (Details)	Structures	Facts
2413402 - Disclosure - Net Income Per Share (Schedule of Earnings Per Share) (Details)	Structures	Facts
2414402 - Disclosure - Compensation Plans (Stock Plans) (Details)	Structures	Facts
2414403 - Disclosure - Compensation Plans (Stock Based Compensation) (Details)	Structures	Facts
2414404 - Disclosure - Compensation Plans (Stock Based Award Activities) (Details)	Structures	Facts
2414405 - Disclosure - Compensation Plans (401k Plans and Performance Fees) (Details)	Structures	Facts
2415402 - Disclosure - Income Taxes (Narrative) (Details)	Structures	Facts
2415403 - Disclosure - Income Taxes (Provision for Income Taxes) (Details)	Structures	Facts
2415404 - Disclosure - Income Taxes (Reconciliation of Federal Statutory Income Tax Rate to Effective Income Tax Rate) (Details)	Structures	Facts
2415405 - Disclosure - Income Taxes (Significant Components of Deferred Tax Assets and Liabilities) (Details)	Structures	Facts
2415406 - Disclosure - Income Taxes (Summary of Activity Related to Gross Unrecognized Tax Benefits) (Details)	Structures	Facts
2416402 - Disclosure - Information about Segments and Geographic Areas (Revenue by Segment) (Details)	Structures	Facts
2416403 - Disclosure - Information about Segments and Geographic Areas (Operating Income/Loss by Segment) (Details)	Structures	Facts
2416404 - Disclosure - Information about Segments and Geographic Areas (Capital Expenditures by Segment) (Details)	Structures	Facts
2416405 - Disclosure - Information about Segments and Geographic Areas (Stock-based Compensation and Depreciation, Amortization and Impairment by Segment) (Details)	Structures	Facts
2416406 - Disclosure - Information about Segments and Geographic Areas (Long-Lived Assets by Geographic Area) (Details)	Structures	Facts
2431401 - Schedule - Schedule II: Valuation and Qualifying Accounts (Details)	Structures	Facts
	RULES
	Errors and Warnings

Terms

Terms shown are only those effectively used by the report instance.

#	Label	Data Type	Period Type	Balance Type	Abstract	Prefix	Name, Documentation, References
1	Asia Pacific [Member]	nonnum:domainItemType	duration		true	srt	AsiaPacificMember
2	srt:AffiliatedEntityMember (label)	nonnum:domainItemType	duration		true	srt	AffiliatedEntityMember
3	Consolidated Entities [Axis]	xbrli:stringItemType	duration		true	srt	ConsolidatedEntitiesAxis
4	Consolidated Entities [Domain]	nonnum:domainItemType	duration		true	srt	ConsolidatedEntitiesDomain
5	Consolidation Items [Axis]	xbrli:stringItemType	duration		true	srt	ConsolidationItemsAxis
6	Consolidation Items [Domain]	nonnum:domainItemType	duration		true	srt	ConsolidationItemsDomain
7	Maximum [Member]	nonnum:domainItemType	duration		true	srt	MaximumMember
8	Minimum [Member]	nonnum:domainItemType	duration		true	srt	MinimumMember
9	Ownership [Domain]	nonnum:domainItemType	duration		true	srt	OwnershipDomain
10	Ownership [Axis]	xbrli:stringItemType	duration		true	srt	OwnershipAxis
11	Product and Service [Domain]	nonnum:domainItemType	duration		true	srt	ProductsAndServicesDomain
12	Product and Service [Axis]	xbrli:stringItemType	duration		true	srt	ProductOrServiceAxis
13	Range [Domain]	nonnum:domainItemType	duration		true	srt	RangeMember
14	Range [Axis]	xbrli:stringItemType	duration		true	srt	RangeAxis
15	srt:RepurchaseAgreementCounterpartyNameDomain (label)	nonnum:domainItemType	duration		true	srt	RepurchaseAgreementCounterpartyNameDomain
16	SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	nonnum:textBlockItemType	duration			srt	ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock
17	Geographical [Domain]	nonnum:domainItemType	duration		true	srt	SegmentGeographicalDomain
18	Geographical [Axis]	xbrli:stringItemType	duration		true	srt	StatementGeographicalAxis
19	Subsidiaries [Member]	nonnum:domainItemType	duration		true	srt	SubsidiariesMember
20	SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]	xbrli:stringItemType	duration		true	srt	ValuationAndQualifyingAccountsDisclosureTable
21	SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]	xbrli:stringItemType	duration		true	srt	ValuationAndQualifyingAccountsAbstract
22	SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]	xbrli:stringItemType	duration		true	srt	ValuationAndQualifyingAccountsDisclosureLineItems
23	country:CA (label)	nonnum:domainItemType	duration		true	country	CA
24	country:GB (label)	nonnum:domainItemType	duration		true	country	GB
25	UNITED STATES	nonnum:domainItemType	duration		true	country	US
26	AOCI Attributable to Parent, Net of Tax [Roll Forward]	xbrli:stringItemType	duration		true	us-gaap	AOCIAttributableToParentNetOfTaxRollForward
27	Award Type [Axis]	xbrli:stringItemType	duration		true	us-gaap	AwardTypeAxis
28	us-gaap:AccidentAndHealthInsuranceSegmentMember (label)	nonnum:domainItemType	duration		true	us-gaap	AccidentAndHealthInsuranceSegmentMember
29	Accounting Standards Update 2016-16 [Member]	nonnum:domainItemType	duration		true	us-gaap	AccountingStandardsUpdate201616Member
30	Accounting Policies [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AccountingPoliciesAbstract
31	Accounting Standards Update 2016-01 [Member]	nonnum:domainItemType	duration		true	us-gaap	AccountingStandardsUpdate201601Member
32	Accounting Standards Update 2016-02 [Member]	nonnum:domainItemType	duration		true	us-gaap	AccountingStandardsUpdate201602Member
33	Accounts Payable, Current	xbrli:monetaryItemType	instant	credit		us-gaap	AccountsPayableCurrent
34	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	AccountsPayableAndAccruedLiabilitiesCurrent
35	Accounts Receivable, Net, Current	xbrli:monetaryItemType	instant	debit		us-gaap	AccountsReceivableNetCurrent
36	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
37	Accrued Liabilities, Current	xbrli:monetaryItemType	instant	credit		us-gaap	AccruedLiabilitiesCurrent
38	us-gaap:AccruedInvestmentIncomeReceivable (label)	xbrli:monetaryItemType	instant	debit		us-gaap	AccruedInvestmentIncomeReceivable
39	Accrued Income Taxes, Current	xbrli:monetaryItemType	instant	credit		us-gaap	AccruedIncomeTaxesCurrent
40	us-gaap:AccruedLiabilitiesMember (label)	nonnum:domainItemType	duration		true	us-gaap	AccruedLiabilitiesMember
41	Accrued Income Taxes, Noncurrent	xbrli:monetaryItemType	instant	credit		us-gaap	AccruedIncomeTaxesNoncurrent
42	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	nonnum:domainItemType	duration		true	us-gaap	AccumulatedGainLossNetCashFlowHedgeParentMember
43	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	nonnum:domainItemType	duration		true	us-gaap	AccumulatedNetUnrealizedInvestmentGainLossMember
44	Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	xbrli:monetaryItemType	instant	credit		us-gaap	AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
45	Accumulated Other Comprehensive Income (Loss) [Table]	xbrli:stringItemType	duration		true	us-gaap	AccumulatedOtherComprehensiveIncomeLossTable
46	Accumulated Other Comprehensive Income (Loss) [Line Items]	xbrli:stringItemType	duration		true	us-gaap	AccumulatedOtherComprehensiveIncomeLossLineItems
47	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	nonnum:domainItemType	duration		true	us-gaap	AccumulatedTranslationAdjustmentMember
48	AOCI Attributable to Parent [Member]	nonnum:domainItemType	duration		true	us-gaap	AccumulatedOtherComprehensiveIncomeMember
49	Accumulated Other Comprehensive Income (Loss), Net of Tax	xbrli:monetaryItemType	instant	credit		us-gaap	AccumulatedOtherComprehensiveIncomeLossNetOfTax
50	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	xbrli:durationItemType	duration			us-gaap	AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
51	Acquired Finite-Lived Intangible Assets [Line Items]	xbrli:stringItemType	duration		true	us-gaap	AcquiredFiniteLivedIntangibleAssetsLineItems
52	Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
53	Adjustments for New Accounting Pronouncements [Axis]	xbrli:stringItemType	duration		true	us-gaap	AdjustmentsForNewAccountingPronouncementsAxis
54	Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	xbrli:monetaryItemType	duration	credit		us-gaap	AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
55	Advertising Costs, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	AdvertisingCostsPolicyTextBlock
56	Other Segments [Member]	nonnum:domainItemType	duration		true	us-gaap	AllOtherSegmentsMember
57	Allocated Share-based Compensation Expense	xbrli:monetaryItemType	duration	debit		us-gaap	AllocatedShareBasedCompensationExpense
58	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	nonnum:domainItemType	duration		true	us-gaap	AllowanceForCreditLossMember
59	Allowance for Doubtful Accounts Receivable, Current	xbrli:monetaryItemType	instant	credit		us-gaap	AllowanceForDoubtfulAccountsReceivableCurrent
60	us-gaap:AmortizationOfDeferredCharges (label)	xbrli:monetaryItemType	duration	debit		us-gaap	AmortizationOfDeferredCharges
61	Amortization of Intangible Assets	xbrli:monetaryItemType	duration	debit		us-gaap	AmortizationOfIntangibleAssets
62	us-gaap:AssetPledgedAsCollateralMember (label)	nonnum:domainItemType	duration		true	us-gaap	AssetPledgedAsCollateralMember
63	us-gaap:AssetManagementArrangementMember (label)	nonnum:domainItemType	duration		true	us-gaap	AssetManagementArrangementMember
64	us-gaap:AssetHeldInTrustMember (label)	nonnum:domainItemType	duration		true	us-gaap	AssetHeldInTrustMember
65	Assets [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AssetsAbstract
66	Assets	xbrli:monetaryItemType	instant	debit		us-gaap	Assets
67	Assets, Current	xbrli:monetaryItemType	instant	debit		us-gaap	AssetsCurrent
68	Assets, Current [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AssetsCurrentAbstract
69	Assets, Noncurrent	xbrli:monetaryItemType	instant	debit		us-gaap	AssetsNoncurrent
70	us-gaap:AssetsNoncurrentAbstract (label)	xbrli:stringItemType	duration		true	us-gaap	AssetsNoncurrentAbstract
71	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	xbrli:monetaryItemType	instant	credit		us-gaap	AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
72	Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract
73	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
74	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
75	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
76	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
77	Debt Securities, Available-for-sale	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtSecurities
78	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
79	Balance Sheet Location [Domain]	nonnum:domainItemType	duration		true	us-gaap	BalanceSheetLocationDomain
80	Balance Sheet Location [Axis]	xbrli:stringItemType	duration		true	us-gaap	BalanceSheetLocationAxis
81	Bank Time Deposits [Member]	nonnum:domainItemType	duration		true	us-gaap	BankTimeDepositsMember
82	us-gaap:BasisSwapMember (label)	nonnum:domainItemType	duration		true	us-gaap	BasisSwapMember
83	us-gaap:BondFutureMember (label)	nonnum:domainItemType	duration		true	us-gaap	BondFutureMember
84	us-gaap:BondOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	BondOptionMember
85	Building [Member]	nonnum:domainItemType	duration		true	us-gaap	BuildingMember
86	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	xbrli:monetaryItemType	instant	debit		us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
87	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	xbrli:monetaryItemType	instant	debit		us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
88	Business Combination, Consideration Transferred	xbrli:monetaryItemType	duration	credit		us-gaap	BusinessCombinationConsiderationTransferred1
89	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	xbrli:monetaryItemType	instant	credit		us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
90	Business Description and Accounting Policies [Text Block]	nonnum:textBlockItemType	duration			us-gaap	BusinessDescriptionAndAccountingPoliciesTextBlock
91	Business Acquisition [Line Items]	xbrli:stringItemType	duration		true	us-gaap	BusinessAcquisitionLineItems
92	Business Acquisition, Acquiree [Domain]	nonnum:domainItemType	duration		true	us-gaap	BusinessAcquisitionAcquireeDomain
93	Business Acquisition [Axis]	xbrli:stringItemType	duration		true	us-gaap	BusinessAcquisitionAxis
94	Business Combinations [Abstract]	xbrli:stringItemType	duration		true	us-gaap	BusinessCombinationsAbstract
95	Business Combinations Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	BusinessCombinationsPolicy
96	Business Combination Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	BusinessCombinationDisclosureTextBlock
97	Business Acquisition, Goodwill, Expected Tax Deductible Amount	xbrli:monetaryItemType	instant	debit		us-gaap	BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount
98	us-gaap:CapitalSupportAgreementMember (label)	nonnum:domainItemType	duration		true	us-gaap	CapitalSupportAgreementMember
99	Capital Lease Obligations, Noncurrent	xbrli:monetaryItemType	instant	credit		us-gaap	CapitalLeaseObligationsNoncurrent
100	Capital Leased Assets, Gross	xbrli:monetaryItemType	instant	debit		us-gaap	CapitalLeasedAssetsGross
101	Cash and Cash Equivalents, Period Increase (Decrease)	xbrli:monetaryItemType	duration	debit		us-gaap	CashAndCashEquivalentsPeriodIncreaseDecrease
102	Cash and Cash Equivalents, Fair Value Disclosure	xbrli:monetaryItemType	instant	debit		us-gaap	CashAndCashEquivalentsFairValueDisclosure
103	Cash and Cash Equivalents, at Carrying Value	xbrli:monetaryItemType	instant	debit		us-gaap	CashAndCashEquivalentsAtCarryingValue
104	Cash Flow Hedging [Member]	nonnum:domainItemType	duration		true	us-gaap	CashFlowHedgingMember
105	Cash, Cash Equivalents, and Short-term Investments	xbrli:monetaryItemType	instant	debit		us-gaap	CashCashEquivalentsAndShortTermInvestments
106	us-gaap:ChangeInValuationTechniqueReasonInactiveMarketMember (label)	nonnum:domainItemType	duration		true	us-gaap	ChangeInValuationTechniqueReasonInactiveMarketMember
107	us-gaap:ChangeInValuationTechniqueReasonCurrentAppraisalUnobtainableMember (label)	nonnum:domainItemType	duration		true	us-gaap	ChangeInValuationTechniqueReasonCurrentAppraisalUnobtainableMember
108	us-gaap:ChangeInValuationTechniqueAbstract (label)	xbrli:stringItemType	duration		true	us-gaap	ChangeInValuationTechniqueAbstract
109	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	xbrli:monetaryItemType	duration	credit		us-gaap	ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1
110	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	xbrli:monetaryItemType	duration	credit		us-gaap	ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1
111	Class of Stock [Domain]	nonnum:domainItemType	duration		true	us-gaap	ClassOfStockDomain
112	Variable Interest Entity, Classification [Domain]	nonnum:domainItemType	duration		true	us-gaap	ClassificationOfVariableInterestEntityDomain
113	Commercial Paper [Member]	nonnum:domainItemType	duration		true	us-gaap	CommercialPaperMember
114	Commercial Paper	xbrli:monetaryItemType	instant	credit		us-gaap	CommercialPaper
115	Commitments and Contingencies Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	CommitmentsAndContingenciesDisclosureTextBlock
116	us-gaap:CommitmentsToExtendCreditMember (label)	nonnum:domainItemType	duration		true	us-gaap	CommitmentsToExtendCreditMember
117	Commitments and Contingencies Disclosure [Abstract]	xbrli:stringItemType	duration		true	us-gaap	CommitmentsAndContingenciesDisclosureAbstract
118	Commitments and Contingencies	xbrli:monetaryItemType	instant	credit		us-gaap	CommitmentsAndContingencies
119	us-gaap:CommoditiesInvestmentMember (label)	nonnum:domainItemType	duration		true	us-gaap	CommoditiesInvestmentMember
120	us-gaap:CommodityOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	CommodityOptionMember
121	Common Class A [Member]	nonnum:domainItemType	duration		true	us-gaap	CommonClassAMember
122	Common Stocks, Including Additional Paid in Capital	xbrli:monetaryItemType	instant	credit		us-gaap	CommonStocksIncludingAdditionalPaidInCapital
123	Common Stock Including Additional Paid in Capital [Member]	nonnum:domainItemType	duration		true	us-gaap	CommonStockIncludingAdditionalPaidInCapitalMember
124	Common Stock, Shares Authorized	xbrli:sharesItemType	instant			us-gaap	CommonStockSharesAuthorized
125	Common Class B [Member]	nonnum:domainItemType	duration		true	us-gaap	CommonClassBMember
126	Common Stock, Par or Stated Value Per Share	num:perShareItemType	instant			us-gaap	CommonStockParOrStatedValuePerShare
127	Common Stock, Capital Shares Reserved for Future Issuance	xbrli:sharesItemType	instant			us-gaap	CommonStockCapitalSharesReservedForFutureIssuance
128	Common Stock, Shares, Issued	xbrli:sharesItemType	instant			us-gaap	CommonStockSharesIssued
129	Common Stock, Shares, Outstanding	xbrli:sharesItemType	instant			us-gaap	CommonStockSharesOutstanding
130	Compensation Related Costs, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	CompensationRelatedCostsPolicyTextBlock
131	Compensation and Employee Benefit Plans [Text Block]	nonnum:textBlockItemType	duration			us-gaap	CompensationAndEmployeeBenefitPlansTextBlock
132	Components of Deferred Tax Assets [Abstract]	xbrli:stringItemType	duration		true	us-gaap	ComponentsOfDeferredTaxAssetsAbstract
133	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	xbrli:monetaryItemType	duration	credit		us-gaap	ComprehensiveIncomeNetOfTax
134	Concentration Risk Type [Domain]	nonnum:domainItemType	duration		true	us-gaap	ConcentrationRiskTypeDomain
135	Concentration Risk, Credit Risk, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	ConcentrationRiskCreditRisk
136	Concentration Risk Benchmark [Axis]	xbrli:stringItemType	duration		true	us-gaap	ConcentrationRiskByBenchmarkAxis
137	Concentration Risk Type [Axis]	xbrli:stringItemType	duration		true	us-gaap	ConcentrationRiskByTypeAxis
138	Concentration Risk Benchmark [Domain]	nonnum:domainItemType	duration		true	us-gaap	ConcentrationRiskBenchmarkDomain
139	Concentration Risk, Percentage	num:percentItemType	duration			us-gaap	ConcentrationRiskPercentage1
140	Consolidation, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	ConsolidationPolicyTextBlock
141	Consolidation, Variable Interest Entity, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	ConsolidationVariableInterestEntityPolicy
142	Construction in Progress [Member]	nonnum:domainItemType	duration		true	us-gaap	ConstructionInProgressMember
143	Contract with Customer, Liability, Revenue Recognized	xbrli:monetaryItemType	duration	credit		us-gaap	ContractWithCustomerLiabilityRevenueRecognized
144	Contract with Customer, Liability, Noncurrent	xbrli:monetaryItemType	instant	credit		us-gaap	ContractWithCustomerLiabilityNoncurrent
145	Contract with Customer, Liability, Current	xbrli:monetaryItemType	instant	credit		us-gaap	ContractWithCustomerLiabilityCurrent
146	Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value	xbrli:monetaryItemType	instant	credit		us-gaap	ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue
147	Corporate Debt Securities [Member]	nonnum:domainItemType	duration		true	us-gaap	CorporateDebtSecuritiesMember
148	Corporate, Non-Segment [Member]	nonnum:domainItemType	duration		true	us-gaap	CorporateNonSegmentMember
149	us-gaap:CorporateMember (label)	nonnum:domainItemType	duration		true	us-gaap	CorporateMember
150	us-gaap:CorporateAndOtherMember (label)	nonnum:domainItemType	duration		true	us-gaap	CorporateAndOtherMember
151	us-gaap:CostOfServicesExcludingDepreciationDepletionAndAmortization (label)	xbrli:monetaryItemType	duration	debit		us-gaap	CostOfServicesExcludingDepreciationDepletionAndAmortization
152	us-gaap:CostOfGoodsAndServicesSold (label)	xbrli:monetaryItemType	duration	debit		us-gaap	CostOfGoodsAndServicesSold
153	Cost Method Investments, Fair Value Disclosure	xbrli:monetaryItemType	instant	debit		us-gaap	CostMethodInvestmentsFairValueDisclosure
154	Cost Method Investments	xbrli:monetaryItemType	instant	debit		us-gaap	CostMethodInvestments
155	us-gaap:CostApproachValuationTechniqueMember (label)	nonnum:domainItemType	duration		true	us-gaap	CostApproachValuationTechniqueMember
156	us-gaap:CostDirectLabor (label)	xbrli:monetaryItemType	duration	debit		us-gaap	CostDirectLabor
157	Cost of Revenue	xbrli:monetaryItemType	duration	debit		us-gaap	CostOfRevenue
158	Costs and Expenses [Abstract]	xbrli:stringItemType	duration		true	us-gaap	CostsAndExpensesAbstract
159	Costs and Expenses	xbrli:monetaryItemType	duration	debit		us-gaap	CostsAndExpenses
160	us-gaap:CreditDefaultSwaptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	CreditDefaultSwaptionMember
161	Credit Facility [Axis]	xbrli:stringItemType	duration		true	us-gaap	CreditFacilityAxis
162	us-gaap:CreditSpreadOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	CreditSpreadOptionMember
163	us-gaap:CreditDefaultOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	CreditDefaultOptionMember
164	Credit Facility [Domain]	nonnum:domainItemType	duration		true	us-gaap	CreditFacilityDomain
165	us-gaap:CreditDefaultSwapMember (label)	nonnum:domainItemType	duration		true	us-gaap	CreditDefaultSwapMember
166	Cumulative Effect of New Accounting Principle in Period of Adoption	xbrli:monetaryItemType	instant	credit		us-gaap	CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
167	us-gaap:CurrencySwapMember (label)	nonnum:domainItemType	duration		true	us-gaap	CurrencySwapMember
168	Current Income Tax Expense (Benefit)	xbrli:monetaryItemType	duration	debit		us-gaap	CurrentIncomeTaxExpenseBenefit
169	Current Federal, State and Local, Tax Expense (Benefit)	xbrli:monetaryItemType	duration	debit		us-gaap	CurrentFederalStateAndLocalTaxExpenseBenefit
170	Current Foreign Tax Expense (Benefit)	xbrli:monetaryItemType	duration	debit		us-gaap	CurrentForeignTaxExpenseBenefit
171	Current Income Tax Expense (Benefit), Continuing Operations [Abstract]	xbrli:stringItemType	duration		true	us-gaap	CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract
172	Customer Relationships [Member]	nonnum:domainItemType	duration		true	us-gaap	CustomerRelationshipsMember
173	Disaggregation of Revenue [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	DisaggregationOfRevenueTableTextBlock
174	us-gaap:DisabilityInsurancePolicyMember (label)	nonnum:domainItemType	duration		true	us-gaap	DisabilityInsurancePolicyMember
175	Designated as Hedging Instrument [Member]	nonnum:domainItemType	duration		true	us-gaap	DesignatedAsHedgingInstrumentMember
176	us-gaap:DebtSecuritiesAvailableForSaleCostOfSecuritySoldOrTransferredMethodSpecificIdentificationMember (label)	nonnum:domainItemType	duration		true	us-gaap	DebtSecuritiesAvailableForSaleCostOfSecuritySoldOrTransferredMethodSpecificIdentificationMember
177	us-gaap:DebtSecuritiesAvailableForSaleCostOfSecuritySoldOrTransferredMethodAverageCostMember (label)	nonnum:domainItemType	duration		true	us-gaap	DebtSecuritiesAvailableForSaleCostOfSecuritySoldOrTransferredMethodAverageCostMember
178	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	xbrli:monetaryItemType	instant	debit		us-gaap	DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
179	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	xbrli:monetaryItemType	instant	debit		us-gaap	DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
180	us-gaap:DebtSecuritiesMaturityAllocationContractualMaturityMember (label)	nonnum:domainItemType	duration		true	us-gaap	DebtSecuritiesMaturityAllocationContractualMaturityMember
181	us-gaap:DebtSecuritiesMaturityAllocationExpectedMaturityMember (label)	nonnum:domainItemType	duration		true	us-gaap	DebtSecuritiesMaturityAllocationExpectedMaturityMember
182	Debt Securities, Available-for-sale, Realized Loss	xbrli:monetaryItemType	duration	debit		us-gaap	DebtSecuritiesAvailableForSaleRealizedLoss
183	Debt Securities, Available-for-sale [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	DebtSecuritiesAvailableForSaleTableTextBlock
184	Debt Securities, Realized Gain (Loss)	xbrli:monetaryItemType	duration	credit		us-gaap	DebtSecuritiesRealizedGainLoss
185	Debt Securities, Available-for-sale, Realized Gain	xbrli:monetaryItemType	duration	credit		us-gaap	DebtSecuritiesAvailableForSaleRealizedGain
186	us-gaap:DebtSecuritiesAvailableForSaleCostOfSecuritySoldMethodAbstract (label)	xbrli:stringItemType	duration		true	us-gaap	DebtSecuritiesAvailableForSaleCostOfSecuritySoldMethodAbstract
187	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	xbrli:monetaryItemType	instant	debit		us-gaap	DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
188	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	xbrli:monetaryItemType	instant	debit		us-gaap	DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
189	us-gaap:DebtSecuritiesMaturityAllocationAverageRemainingLifeMember (label)	nonnum:domainItemType	duration		true	us-gaap	DebtSecuritiesMaturityAllocationAverageRemainingLifeMember
190	us-gaap:DebtSecuritiesMaturityAllocationDomain (label)	nonnum:domainItemType	duration		true	us-gaap	DebtSecuritiesMaturityAllocationDomain
191	Debt Securities, Available-for-sale, Unrealized Loss Position	xbrli:monetaryItemType	instant	debit		us-gaap	DebtSecuritiesAvailableForSaleUnrealizedLossPosition
192	Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	xbrli:monetaryItemType	instant	debit		us-gaap	DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
193	Debt and Equity Securities, Gain (Loss)	xbrli:monetaryItemType	duration	credit		us-gaap	DebtAndEquitySecuritiesGainLoss
194	Debt Disclosure [Abstract]	xbrli:stringItemType	duration		true	us-gaap	DebtDisclosureAbstract
195	us-gaap:DebtMember (label)	nonnum:domainItemType	duration		true	us-gaap	DebtMember
196	Schedule of Long-term Debt Instruments [Table]	xbrli:stringItemType	duration		true	us-gaap	DebtInstrumentTable
197	Debt Instrument [Axis]	xbrli:stringItemType	duration		true	us-gaap	DebtInstrumentAxis
198	Debt Instrument, Face Amount	xbrli:monetaryItemType	instant	credit		us-gaap	DebtInstrumentFaceAmount
199	Long-term Debt, Gross	xbrli:monetaryItemType	instant	credit		us-gaap	DebtInstrumentCarryingAmount
200	Debt Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	DebtDisclosureTextBlock
201	Debt Instrument [Line Items]	xbrli:stringItemType	duration		true	us-gaap	DebtInstrumentLineItems
202	Debt Securities [Member]	nonnum:domainItemType	duration		true	us-gaap	DebtSecuritiesMember
203	us-gaap:DebtCurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	DebtCurrent
204	Debt Instrument, Interest Rate, Stated Percentage	num:percentItemType	instant			us-gaap	DebtInstrumentInterestRateStatedPercentage
205	Debt Instrument, Interest Rate, Effective Percentage	num:percentItemType	instant			us-gaap	DebtInstrumentInterestRateEffectivePercentage
206	Debt Instrument, Unamortized Discount	xbrli:monetaryItemType	instant	debit		us-gaap	DebtInstrumentUnamortizedDiscount
207	Debt Instrument, Name [Domain]	nonnum:domainItemType	duration		true	us-gaap	DebtInstrumentNameDomain
208	Decrease in Unrecognized Tax Benefits is Reasonably Possible	xbrli:monetaryItemType	instant	debit		us-gaap	DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible
209	Deferred Tax Liabilities, Investments	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredTaxLiabilitiesInvestments
210	Deferred Federal, State and Local, Tax Expense (Benefit)	xbrli:monetaryItemType	duration	debit		us-gaap	DeferredFederalStateAndLocalTaxExpenseBenefit
211	Deferred Income Tax Assets, Net	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredIncomeTaxAssetsNet
212	us-gaap:DeferredVariableAnnuityMember (label)	nonnum:domainItemType	duration		true	us-gaap	DeferredVariableAnnuityMember
213	Deferred Income Tax Liabilities, Net	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredIncomeTaxLiabilitiesNet
214	us-gaap:DeferredFixedAnnuityMember (label)	nonnum:domainItemType	duration		true	us-gaap	DeferredFixedAnnuityMember
215	Deferred Foreign Income Tax Expense (Benefit)	xbrli:monetaryItemType	duration	debit		us-gaap	DeferredForeignIncomeTaxExpenseBenefit
216	Deferred Income Tax Expense (Benefit)	xbrli:monetaryItemType	duration	debit		us-gaap	DeferredIncomeTaxExpenseBenefit
217	Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]	xbrli:stringItemType	duration		true	us-gaap	DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract
218	Deferred Income Taxes and Tax Credits	xbrli:monetaryItemType	duration	debit		us-gaap	DeferredIncomeTaxesAndTaxCredits
219	Deferred Tax Liabilities, Gross	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredIncomeTaxLiabilities
220	Deferred Tax Assets, Net	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredTaxAssetsLiabilitiesNet
221	Deferred Tax Assets, Net [Abstract]	xbrli:stringItemType	duration		true	us-gaap	DeferredTaxAssetsNetAbstract
222	Deferred Tax Assets, Gross	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredTaxAssetsGross
223	Deferred Tax Assets, Net of Valuation Allowance	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredTaxAssetsNet
224	Deferred Tax Assets, Other	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredTaxAssetsOther
225	Deferred Tax Assets, Operating Loss Carryforwards	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredTaxAssetsOperatingLossCarryforwards
226	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
227	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
228	Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther
229	Deferred Tax Assets, Tax Credit Carryforwards, Other	xbrli:monetaryItemType	instant	debit		us-gaap	DeferredTaxAssetsTaxCreditCarryforwardsOther
230	Deferred Tax Liabilities, Net	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredTaxLiabilities
231	Deferred Tax Liabilities, Other	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredTaxLiabilitiesOther
232	Deferred Tax Assets, Valuation Allowance	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredTaxAssetsValuationAllowance
233	Deferred Tax Liabilities, Gross [Abstract]	xbrli:stringItemType	duration		true	us-gaap	DeferredTaxLiabilitiesAbstract
234	Deferred Tax Liabilities, Intangible Assets	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
235	us-gaap:DeferredTaxLiabilitiesCurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredTaxLiabilitiesCurrent
236	us-gaap:DeferredTaxLiabilitiesNoncurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredTaxLiabilitiesNoncurrent
237	us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredCompensationLiabilityClassifiedNoncurrent
238	Deferred Tax Liabilities, Property, Plant and Equipment	xbrli:monetaryItemType	instant	credit		us-gaap	DeferredTaxLiabilitiesPropertyPlantAndEquipment
239	us-gaap:DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit (label)	xbrli:monetaryItemType	duration	credit		us-gaap	DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit
240	us-gaap:DefinedBenefitPlanAmortizationOfTransitionAssetObligation (label)	xbrli:monetaryItemType	duration	credit		us-gaap	DefinedBenefitPlanAmortizationOfTransitionAssetObligation
241	us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1 (label)	xbrli:monetaryItemType	duration	credit		us-gaap	DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1
242	us-gaap:DefinedBenefitPlanOtherCosts (label)	xbrli:monetaryItemType	duration	debit		us-gaap	DefinedBenefitPlanOtherCosts
243	us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 (label)	xbrli:monetaryItemType	duration	credit		us-gaap	DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1
244	us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses (label)	xbrli:monetaryItemType	duration	credit		us-gaap	DefinedBenefitPlanAmortizationOfGainsLosses
245	us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit (label)	xbrli:monetaryItemType	duration	debit		us-gaap	DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
246	us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets (label)	xbrli:monetaryItemType	duration	credit		us-gaap	DefinedBenefitPlanExpectedReturnOnPlanAssets
247	us-gaap:DefinedBenefitPlanInterestCost (label)	xbrli:monetaryItemType	duration	debit		us-gaap	DefinedBenefitPlanInterestCost
248	us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments (label)	xbrli:monetaryItemType	duration	credit		us-gaap	DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments
249	Defined Contribution Plan, Cost	xbrli:monetaryItemType	duration	debit		us-gaap	DefinedContributionPlanCostRecognized
250	us-gaap:DefinedBenefitPostretirementHealthCoverageMember (label)	nonnum:domainItemType	duration		true	us-gaap	DefinedBenefitPostretirementHealthCoverageMember
251	us-gaap:DefinedBenefitPostretirementLifeInsuranceMember (label)	nonnum:domainItemType	duration		true	us-gaap	DefinedBenefitPostretirementLifeInsuranceMember
252	us-gaap:DepositsMember (label)	nonnum:domainItemType	duration		true	us-gaap	DepositsMember
253	Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	xbrli:monetaryItemType	instant	debit		us-gaap	DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
254	Derivative Liability, Not Offset, Policy Election Deduction	xbrli:monetaryItemType	instant	debit		us-gaap	DerivativeLiabilityNotOffsetPolicyElectionDeduction
255	Derivative, Collateral, Obligation to Return Securities	xbrli:monetaryItemType	instant	credit		us-gaap	DerivativeCollateralObligationToReturnSecurities
256	Derivative, Collateral, Right to Reclaim Securities	xbrli:monetaryItemType	instant	debit		us-gaap	DerivativeCollateralRightToReclaimSecurities
257	Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	xbrli:monetaryItemType	instant	credit		us-gaap	DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
258	Derivative Asset, Not Offset, Policy Election Deduction	xbrli:monetaryItemType	instant	credit		us-gaap	DerivativeAssetNotOffsetPolicyElectionDeduction
259	Derivative, Remaining Maturity	xbrli:durationItemType	duration			us-gaap	DerivativeRemainingMaturity1
260	Derivative Liability, Fair Value, Gross Asset	xbrli:monetaryItemType	instant	debit		us-gaap	DerivativeLiabilityFairValueGrossAsset
261	Derivative Asset	xbrli:monetaryItemType	instant	debit		us-gaap	DerivativeAssets
262	Derivative Asset [Abstract]	xbrli:stringItemType	duration		true	us-gaap	DerivativeAssetsAbstract
263	Derivative, Collateral, Right to Reclaim Cash	xbrli:monetaryItemType	instant	debit		us-gaap	DerivativeCollateralRightToReclaimCash
264	Derivative, Collateral, Obligation to Return Cash	xbrli:monetaryItemType	instant	credit		us-gaap	DerivativeCollateralObligationToReturnCash
265	Derivative Instrument [Axis]	xbrli:stringItemType	duration		true	us-gaap	DerivativeInstrumentRiskAxis
266	Derivative Asset, Fair Value, Gross Liability	xbrli:monetaryItemType	instant	credit		us-gaap	DerivativeAssetFairValueGrossLiability
267	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	xbrli:monetaryItemType	duration	credit		us-gaap	DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
268	us-gaap:DerivativeMember (label)	nonnum:domainItemType	duration		true	us-gaap	DerivativeMember
269	Derivative Liability	xbrli:monetaryItemType	instant	credit		us-gaap	DerivativeLiabilities
270	Derivative Liability [Abstract]	xbrli:stringItemType	duration		true	us-gaap	DerivativeLiabilitiesAbstract
271	Derivative Asset, Fair Value, Gross Asset	xbrli:monetaryItemType	instant	debit		us-gaap	DerivativeFairValueOfDerivativeAsset
272	Derivative, Gain (Loss) on Derivative, Net	xbrli:monetaryItemType	duration	credit		us-gaap	DerivativeGainLossOnDerivativeNet
273	Derivative Liability, Fair Value, Gross Liability	xbrli:monetaryItemType	instant	credit		us-gaap	DerivativeFairValueOfDerivativeLiability
274	Derivative Instruments, Gain (Loss) [Table]	xbrli:stringItemType	duration		true	us-gaap	DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable
275	Hedging Relationship [Axis]	xbrli:stringItemType	duration		true	us-gaap	DerivativeInstrumentsGainLossByHedgingRelationshipAxis
276	Derivative Instruments, Gain (Loss) [Line Items]	xbrli:stringItemType	duration		true	us-gaap	DerivativeInstrumentsGainLossLineItems
277	Derivative Contract [Domain]	nonnum:domainItemType	duration		true	us-gaap	DerivativeContractTypeDomain
278	Derivatives, Fair Value [Line Items]	xbrli:stringItemType	duration		true	us-gaap	DerivativesFairValueLineItems
279	us-gaap:DirectOperatingCosts (label)	xbrli:monetaryItemType	duration	debit		us-gaap	DirectOperatingCosts
280	Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	xbrli:stringItemType	duration		true	us-gaap	DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
281	us-gaap:DJIAIndexFutureMember (label)	nonnum:domainItemType	duration		true	us-gaap	DJIAIndexFutureMember
282	us-gaap:DomesticPlanMember (label)	nonnum:domainItemType	duration		true	us-gaap	DomesticPlanMember
283	Domestic Tax Authority [Member]	nonnum:domainItemType	duration		true	us-gaap	DomesticCountryMember
284	us-gaap:DueToRelatedPartiesNoncurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	DueToRelatedPartiesNoncurrent
285	us-gaap:DueFromRelatedParties (label)	xbrli:monetaryItemType	instant	debit		us-gaap	DueFromRelatedParties
286	us-gaap:DueToRelatedPartiesCurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	DueToRelatedPartiesCurrent
287	EMEA [Member]	nonnum:domainItemType	duration		true	us-gaap	EMEAMember
288	Earnings Per Share [Text Block]	nonnum:textBlockItemType	duration			us-gaap	EarningsPerShareTextBlock
289	Earnings Per Share, Basic	num:perShareItemType	duration			us-gaap	EarningsPerShareBasic
290	Earnings Per Share, Basic [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EarningsPerShareBasicAbstract
291	Earnings Per Share, Diluted	num:perShareItemType	duration			us-gaap	EarningsPerShareDiluted
292	Earnings Per Share, Diluted [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EarningsPerShareDilutedAbstract
293	Earnings Per Share [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EarningsPerShareAbstract
294	Effect of Exchange Rate on Cash and Cash Equivalents	xbrli:monetaryItemType	duration	debit		us-gaap	EffectOfExchangeRateOnCashAndCashEquivalents
295	Effect of Cash Flow Hedges on Results of Operations [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EffectOfCashFlowHedgesOnResultsOfOperationsAbstract
296	Effect of Net Investment Hedge on Results of Operations [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract
297	Effect of Fair Value Hedges on Results of Operations [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EffectOfFairValueHedgesOnResultsOfOperationsAbstract
298	Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	num:percentItemType	duration			us-gaap	EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
299	Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	num:percentItemType	duration			us-gaap	EffectiveIncomeTaxRateReconciliationOtherAdjustments
300	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent	num:percentItemType	duration			us-gaap	EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
301	Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	num:percentItemType	duration			us-gaap	EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
302	Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	num:percentItemType	duration			us-gaap	EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
303	Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	num:percentItemType	duration			us-gaap	EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
304	Effective Income Tax Rate Reconciliation, Percent	num:percentItemType	duration			us-gaap	EffectiveIncomeTaxRateContinuingOperations
305	Effective Income Tax Rate Reconciliation, Percent [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract
306	Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent	num:percentItemType	duration			us-gaap	EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
307	Employee-related Liabilities, Current	xbrli:monetaryItemType	instant	credit		us-gaap	EmployeeRelatedLiabilitiesCurrent
308	Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	xbrli:durationItemType	duration			us-gaap	EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
309	Employee Stock Option [Member]	nonnum:domainItemType	duration		true	us-gaap	EmployeeStockOptionMember
310	Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	xbrli:monetaryItemType	duration	credit		us-gaap	EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
311	us-gaap:EmployeeBenefitsAndShareBasedCompensation (label)	xbrli:monetaryItemType	duration	debit		us-gaap	EmployeeBenefitsAndShareBasedCompensation
312	Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	xbrli:monetaryItemType	instant	debit		us-gaap	EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
313	us-gaap:EnergyRelatedDerivativeMember (label)	nonnum:domainItemType	duration		true	us-gaap	EnergyRelatedDerivativeMember
314	Equity Securities, FV-NI, Realized Gain (Loss)	xbrli:monetaryItemType	duration	credit		us-gaap	EquitySecuritiesFvNiRealizedGainLoss
315	Equity Securities, FV-NI, Gain (Loss), Alternative [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EquitySecuritiesFvNiGainLossAlternativeAbstract
316	Equity Securities, FV-NI, Unrealized Gain (Loss)	xbrli:monetaryItemType	duration	credit		us-gaap	EquitySecuritiesFvNiUnrealizedGainLoss
317	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	xbrli:monetaryItemType	instant	credit		us-gaap	EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount
318	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount	xbrli:monetaryItemType	duration	credit		us-gaap	EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount
319	Equity Securities without Readily Determinable Fair Value, Impairment Loss, Cumulative Amount [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossCumulativeAmountAbstract
320	Equity Securities without Readily Determinable Fair Value, Amount	xbrli:monetaryItemType	instant	debit		us-gaap	EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
321	Equity Securities, FV-NI, Gain (Loss)	xbrli:monetaryItemType	duration	credit		us-gaap	EquitySecuritiesFvNiGainLoss
322	Equity Component [Domain]	nonnum:domainItemType	duration		true	us-gaap	EquityComponentDomain
323	Equity Securities, FV-NI	xbrli:monetaryItemType	instant	debit		us-gaap	EquitySecuritiesFvNi
324	Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount	xbrli:monetaryItemType	duration	debit		us-gaap	EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount
325	Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Cumulative Amount	xbrli:monetaryItemType	instant	debit		us-gaap	EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount
326	Equity Securities without Readily Determinable Fair Value [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	EquitySecuritiesWithoutReadilyDeterminableFairValueTableTextBlock
327	Equity [Abstract]	xbrli:stringItemType	duration		true	us-gaap	EquityAbstract
328	Equity Method Investments	xbrli:monetaryItemType	instant	debit		us-gaap	EquityMethodInvestments
329	us-gaap:EquityFundsMember (label)	nonnum:domainItemType	duration		true	us-gaap	EquityFundsMember
330	us-gaap:EquitySwapMember (label)	nonnum:domainItemType	duration		true	us-gaap	EquitySwapMember
331	us-gaap:EuriborFutureMember (label)	nonnum:domainItemType	duration		true	us-gaap	EuriborFutureMember
332	us-gaap:EurodollarFutureMember (label)	nonnum:domainItemType	duration		true	us-gaap	EurodollarFutureMember
333	us-gaap:ExchangeTradedOptionsMember (label)	nonnum:domainItemType	duration		true	us-gaap	ExchangeTradedOptionsMember
334	Extinguishment of Debt [Axis]	xbrli:stringItemType	duration		true	us-gaap	ExtinguishmentOfDebtAxis
335	Extinguishment of Debt, Type [Domain]	nonnum:domainItemType	duration		true	us-gaap	ExtinguishmentOfDebtTypeDomain
336	us-gaap:FundedPlanMember (label)	nonnum:domainItemType	duration		true	us-gaap	FundedPlanMember
337	us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember (label)	nonnum:domainItemType	duration		true	us-gaap	FairValueMeasuredAtNetAssetValuePerShareMember
338	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	xbrli:monetaryItemType	duration	credit		us-gaap	FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
339	us-gaap:FairValueInputsLevel12And3Member (label)	nonnum:domainItemType	duration		true	us-gaap	FairValueInputsLevel12And3Member
340	Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	xbrli:stringItemType	duration		true	us-gaap	FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
341	Fair Value Measurements, Recurring and Nonrecurring [Table]	xbrli:stringItemType	duration		true	us-gaap	FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable
342	Fair Value Disclosures [Abstract]	xbrli:stringItemType	duration		true	us-gaap	FairValueDisclosuresAbstract
343	Fair Value Hierarchy and NAV [Axis]	xbrli:stringItemType	duration		true	us-gaap	FairValueByFairValueHierarchyLevelAxis
344	Asset Class [Axis]	xbrli:stringItemType	duration		true	us-gaap	FairValueByAssetClassAxis
345	Asset Class [Domain]	nonnum:domainItemType	duration		true	us-gaap	FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain
346	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales	xbrli:monetaryItemType	duration	credit		us-gaap	FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
347	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	xbrli:monetaryItemType	duration	debit		us-gaap	FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
348	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss) [Abstract]	xbrli:stringItemType	duration		true	us-gaap	FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityGainLossIncludedInOtherComprehensiveIncomeLossAbstract
349	Fair Value Hierarchy and NAV [Domain]	nonnum:domainItemType	duration		true	us-gaap	FairValueMeasurementsFairValueHierarchyDomain
350	Fair Value of Financial Instruments, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	FairValueOfFinancialInstrumentsPolicy
351	us-gaap:FairValueOptionOtherEligibleItemsMember (label)	nonnum:domainItemType	duration		true	us-gaap	FairValueOptionOtherEligibleItemsMember
352	Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	xbrli:stringItemType	duration		true	us-gaap	FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward
353	Fair Value, Inputs, Level 3 [Member]	nonnum:domainItemType	duration		true	us-gaap	FairValueInputsLevel3Member
354	Fair Value, Inputs, Level 1 [Member]	nonnum:domainItemType	duration		true	us-gaap	FairValueInputsLevel1Member
355	Fair Value, Inputs, Level 2 [Member]	nonnum:domainItemType	duration		true	us-gaap	FairValueInputsLevel2Member
356	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	xbrli:monetaryItemType	instant	debit		us-gaap	FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
357	Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]	xbrli:stringItemType	duration		true	us-gaap	FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable
358	Fair Value Hedging [Member]	nonnum:domainItemType	duration		true	us-gaap	FairValueHedgingMember
359	Financial Instruments Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	FinancialInstrumentsDisclosureTextBlock
360	Financial Instrument [Axis]	xbrli:stringItemType	duration		true	us-gaap	FinancialInstrumentAxis
361	us-gaap:FinancialGuaranteeInsuranceSegmentMember (label)	nonnum:domainItemType	duration		true	us-gaap	FinancialGuaranteeInsuranceSegmentMember
362	Finite-Lived Intangible Assets, Amortization Expense, Year Two	xbrli:monetaryItemType	instant	debit		us-gaap	FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
363	Finite-Lived Intangible Assets, Amortization Expense, Year Five	xbrli:monetaryItemType	instant	debit		us-gaap	FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
364	Finite-Lived Intangible Assets, Net	xbrli:monetaryItemType	instant	debit		us-gaap	FiniteLivedIntangibleAssetsNet
365	Finite-Lived Intangible Assets, Gross	xbrli:monetaryItemType	instant	debit		us-gaap	FiniteLivedIntangibleAssetsGross
366	Finite-Lived Intangible Assets, Amortization Expense, Year Three	xbrli:monetaryItemType	instant	debit		us-gaap	FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
367	Finite-Lived Intangible Assets, Major Class Name [Domain]	nonnum:domainItemType	duration		true	us-gaap	FiniteLivedIntangibleAssetsMajorClassNameDomain
368	Finite-Lived Intangible Assets, Amortization Expense, after Year Five	xbrli:monetaryItemType	instant	debit		us-gaap	FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
369	Finite-Lived Intangible Assets by Major Class [Axis]	xbrli:stringItemType	duration		true	us-gaap	FiniteLivedIntangibleAssetsByMajorClassAxis
370	Finite-Lived Intangible Asset, Useful Life	xbrli:durationItemType	duration			us-gaap	FiniteLivedIntangibleAssetUsefulLife
371	Finite-Lived Intangible Assets, Amortization Expense, Year Four	xbrli:monetaryItemType	instant	debit		us-gaap	FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
372	Finite-Lived Intangible Assets, Accumulated Amortization	xbrli:monetaryItemType	instant	credit		us-gaap	FiniteLivedIntangibleAssetsAccumulatedAmortization
373	Finite-Lived Intangible Assets [Line Items]	xbrli:stringItemType	duration		true	us-gaap	FiniteLivedIntangibleAssetsLineItems
374	Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]	xbrli:stringItemType	duration		true	us-gaap	FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract
375	Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	xbrli:monetaryItemType	instant	debit		us-gaap	FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
376	us-gaap:FirmCommitmentNotRecognizedAtInceptionFairValueOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	FirmCommitmentNotRecognizedAtInceptionFairValueOptionMember
377	us-gaap:FixedAnnuityMember (label)	nonnum:domainItemType	duration		true	us-gaap	FixedAnnuityMember
378	us-gaap:ForeignExchangeForwardMember (label)	nonnum:domainItemType	duration		true	us-gaap	ForeignExchangeForwardMember
379	Foreign Tax Authority [Member]	nonnum:domainItemType	duration		true	us-gaap	ForeignCountryMember
380	Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	xbrli:monetaryItemType	instant	credit		us-gaap	ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months
381	us-gaap:ForeignPlanMember (label)	nonnum:domainItemType	duration		true	us-gaap	ForeignPlanMember
382	Foreign Currency Transaction Gain (Loss), before Tax	xbrli:monetaryItemType	duration	credit		us-gaap	ForeignCurrencyTransactionGainLossBeforeTax
383	us-gaap:ForeignExchangeFutureMember (label)	nonnum:domainItemType	duration		true	us-gaap	ForeignExchangeFutureMember
384	Foreign Currency Transactions and Translations Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock
385	Foreign Currency Transaction Loss, before Tax	xbrli:monetaryItemType	duration	debit		us-gaap	ForeignCurrencyTransactionLossBeforeTax
386	Foreign Exchange Contract [Member]	nonnum:domainItemType	duration		true	us-gaap	ForeignExchangeContractMember
387	us-gaap:ForeignExchangeOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	ForeignExchangeOptionMember
388	us-gaap:ForwardContractsMember (label)	nonnum:domainItemType	duration		true	us-gaap	ForwardContractsMember
389	Furniture and Fixtures [Member]	nonnum:domainItemType	duration		true	us-gaap	FurnitureAndFixturesMember
390	us-gaap:FutureMember (label)	nonnum:domainItemType	duration		true	us-gaap	FutureMember
391	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	xbrli:monetaryItemType	duration	credit		us-gaap	GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNet
392	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	xbrli:monetaryItemType	duration	credit		us-gaap	GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet
393	Gain (Loss) on Securities [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	GainLossOnInvestmentsTextBlock
394	Gain (Loss) on Hedging Activity	xbrli:monetaryItemType	duration	credit		us-gaap	GainLossOnOilAndGasHedgingActivity
395	Gains (Losses) on Restructuring of Debt	xbrli:monetaryItemType	duration	credit		us-gaap	GainsLossesOnRestructuringOfDebt
396	General and Administrative Expense	xbrli:monetaryItemType	duration	debit		us-gaap	GeneralAndAdministrativeExpense
397	Geographic Concentration Risk [Member]	nonnum:domainItemType	duration		true	us-gaap	GeographicConcentrationRiskMember
398	Goodwill	xbrli:monetaryItemType	instant	debit		us-gaap	Goodwill
399	Goodwill, Translation and Purchase Accounting Adjustments	xbrli:monetaryItemType	duration	debit		us-gaap	GoodwillTranslationAndPurchaseAccountingAdjustments
400	Goodwill, Acquired During Period	xbrli:monetaryItemType	duration	debit		us-gaap	GoodwillAcquiredDuringPeriod
401	Goodwill and Intangible Assets Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	GoodwillAndIntangibleAssetsDisclosureTextBlock
402	Goodwill, Impairment Loss	xbrli:monetaryItemType	duration	debit		us-gaap	GoodwillImpairmentLoss
403	Goodwill, Transfers	xbrli:monetaryItemType	duration	debit		us-gaap	GoodwillTransfers
404	Goodwill [Roll Forward]	xbrli:stringItemType	duration		true	us-gaap	GoodwillRollForward
405	Goodwill and Intangible Assets Disclosure [Abstract]	xbrli:stringItemType	duration		true	us-gaap	GoodwillAndIntangibleAssetsDisclosureAbstract
406	Goodwill [Line Items]	xbrli:stringItemType	duration		true	us-gaap	GoodwillLineItems
407	us-gaap:GroupPoliciesMember (label)	nonnum:domainItemType	duration		true	us-gaap	GroupPoliciesMember
408	us-gaap:GuaranteedInvestmentContractMember (label)	nonnum:domainItemType	duration		true	us-gaap	GuaranteedInvestmentContractMember
409	us-gaap:HealthInsuranceProductLineMember (label)	nonnum:domainItemType	duration		true	us-gaap	HealthInsuranceProductLineMember
410	us-gaap:HedgeFundsEquityLongShortMember (label)	nonnum:domainItemType	duration		true	us-gaap	HedgeFundsEquityLongShortMember
411	us-gaap:HedgeFundsEventDrivenMember (label)	nonnum:domainItemType	duration		true	us-gaap	HedgeFundsEventDrivenMember
412	us-gaap:HedgeFundsMember (label)	nonnum:domainItemType	duration		true	us-gaap	HedgeFundsMember
413	us-gaap:HedgeFundsMultistrategyMember (label)	nonnum:domainItemType	duration		true	us-gaap	HedgeFundsMultistrategyMember
414	us-gaap:HedgeFundsEquityMember (label)	nonnum:domainItemType	duration		true	us-gaap	HedgeFundsEquityMember
415	us-gaap:HedgeFundsGlobalOpportunityMember (label)	nonnum:domainItemType	duration		true	us-gaap	HedgeFundsGlobalOpportunityMember
416	Hedging Designation [Axis]	xbrli:stringItemType	duration		true	us-gaap	HedgingDesignationAxis
417	Hedging Designation [Domain]	nonnum:domainItemType	duration		true	us-gaap	HedgingDesignationDomain
418	Hedging Relationship [Domain]	nonnum:domainItemType	duration		true	us-gaap	HedgingRelationshipDomain
419	us-gaap:IndividuallyImmaterialCounterpartiesMember (label)	nonnum:domainItemType	duration		true	us-gaap	IndividuallyImmaterialCounterpartiesMember
420	us-gaap:ImmediateVariableAnnuityMember (label)	nonnum:domainItemType	duration		true	us-gaap	ImmediateVariableAnnuityMember
421	us-gaap:ImmediateFixedAnnuityMember (label)	nonnum:domainItemType	duration		true	us-gaap	ImmediateFixedAnnuityMember
422	Other than Temporary Impairment Losses, Investments	xbrli:monetaryItemType	duration	debit		us-gaap	ImpairmentOfInvestments
423	us-gaap:IncomeApproachValuationTechniqueMember (label)	nonnum:domainItemType	duration		true	us-gaap	IncomeApproachValuationTechniqueMember
424	Income Statement Location [Domain]	nonnum:domainItemType	duration		true	us-gaap	IncomeStatementLocationDomain
425	Income Statement Location [Axis]	xbrli:stringItemType	duration		true	us-gaap	IncomeStatementLocationAxis
426	Income Tax Disclosure [Abstract]	xbrli:stringItemType	duration		true	us-gaap	IncomeTaxDisclosureAbstract
427	Income Tax Authority [Axis]	xbrli:stringItemType	duration		true	us-gaap	IncomeTaxAuthorityAxis
428	Income (Loss) from Continuing Operations before Income Taxes, Domestic	xbrli:monetaryItemType	duration	credit		us-gaap	IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
429	Income Tax Authority [Domain]	nonnum:domainItemType	duration		true	us-gaap	IncomeTaxAuthorityDomain
430	Income (Loss) from Continuing Operations before Income Taxes, Foreign	xbrli:monetaryItemType	duration	credit		us-gaap	IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
431	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	xbrli:monetaryItemType	duration	credit		us-gaap	IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
432	Income Statement [Abstract]	xbrli:stringItemType	duration		true	us-gaap	IncomeStatementAbstract
433	Income Tax Expense (Benefit)	xbrli:monetaryItemType	duration	debit		us-gaap	IncomeTaxExpenseBenefit
434	Income Tax Expense (Benefit), Continuing Operations [Abstract]	xbrli:stringItemType	duration		true	us-gaap	IncomeTaxExpenseBenefitContinuingOperationsAbstract
435	Income Tax Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	IncomeTaxDisclosureTextBlock
436	us-gaap:IncomeTaxReceivable (label)	xbrli:monetaryItemType	instant	debit		us-gaap	IncomeTaxReceivable
437	Income Taxes Receivable, Current	xbrli:monetaryItemType	instant	debit		us-gaap	IncomeTaxesReceivable
438	Income Taxes Paid, Net	xbrli:monetaryItemType	duration	credit		us-gaap	IncomeTaxesPaidNet
439	Income Tax, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	IncomeTaxPolicyTextBlock
440	Increase (Decrease) in Income Taxes	xbrli:monetaryItemType	duration	debit		us-gaap	IncreaseDecreaseInIncomeTaxes
441	Increase (Decrease) in Contract with Customer, Liability	xbrli:monetaryItemType	duration	debit		us-gaap	IncreaseDecreaseInContractWithCustomerLiability
442	Increase (Decrease) in Collateral Held under Securities Lending	xbrli:monetaryItemType	duration	credit		us-gaap	IncreaseDecreaseInCollateralHeldUnderSecuritiesLending
443	Increase (Decrease) in Accounts Receivable	xbrli:monetaryItemType	duration	credit		us-gaap	IncreaseDecreaseInAccountsReceivable
444	Increase (Decrease) in Accounts Payable	xbrli:monetaryItemType	duration	debit		us-gaap	IncreaseDecreaseInAccountsPayable
445	Increase (Decrease) in Accrued Liabilities	xbrli:monetaryItemType	duration	debit		us-gaap	IncreaseDecreaseInAccruedLiabilities
446	Increase (Decrease) in Operating Capital [Abstract]	xbrli:stringItemType	duration		true	us-gaap	IncreaseDecreaseInOperatingCapitalAbstract
447	Increase (Decrease) in Other Operating Assets	xbrli:monetaryItemType	duration	credit		us-gaap	IncreaseDecreaseInOtherOperatingAssets
448	Increase (Decrease) in Stockholders' Equity [Roll Forward]	xbrli:stringItemType	duration		true	us-gaap	IncreaseDecreaseInStockholdersEquityRollForward
449	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	xbrli:sharesItemType	duration			us-gaap	IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
450	us-gaap:IndividualPoliciesMember (label)	nonnum:domainItemType	duration		true	us-gaap	IndividualPoliciesMember
451	us-gaap:InsuranceContractRightsAndObligationsFairValueOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	InsuranceContractRightsAndObligationsFairValueOptionMember
452	Intangible Assets, Net (Excluding Goodwill)	xbrli:monetaryItemType	instant	debit		us-gaap	IntangibleAssetsNetExcludingGoodwill
453	us-gaap:InterestSensitiveLifeMember (label)	nonnum:domainItemType	duration		true	us-gaap	InterestSensitiveLifeMember
454	us-gaap:InterestIncomeExpenseNonoperatingNet (label)	xbrli:monetaryItemType	duration	credit		us-gaap	InterestIncomeExpenseNonoperatingNet
455	Interest Income, Other	xbrli:monetaryItemType	duration	credit		us-gaap	InterestIncomeOther
456	us-gaap:InterestAndDebtExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	InterestAndDebtExpense
457	us-gaap:InterestRateSwaptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	InterestRateSwaptionMember
458	Interest Expense	xbrli:monetaryItemType	duration	debit		us-gaap	InterestExpense
459	Interest Costs Capitalized	xbrli:monetaryItemType	duration	debit		us-gaap	InterestCostsCapitalized
460	us-gaap:InterestExpenseOther (label)	xbrli:monetaryItemType	duration	debit		us-gaap	InterestExpenseOther
461	us-gaap:InterestIncomeExpenseNet (label)	xbrli:monetaryItemType	duration	credit		us-gaap	InterestIncomeExpenseNet
462	us-gaap:InterestRateCapMember (label)	nonnum:domainItemType	duration		true	us-gaap	InterestRateCapMember
463	us-gaap:InterestIncomeOperating (label)	xbrli:monetaryItemType	duration	credit		us-gaap	InterestIncomeOperating
464	Interest Paid, Excluding Capitalized Interest, Operating Activities	xbrli:monetaryItemType	duration	credit		us-gaap	InterestPaidNet
465	us-gaap:InterestRateLockCommitmentsMember (label)	nonnum:domainItemType	duration		true	us-gaap	InterestRateLockCommitmentsMember
466	us-gaap:InterestRateSwapMember (label)	nonnum:domainItemType	duration		true	us-gaap	InterestRateSwapMember
467	us-gaap:InterestRateFloorMember (label)	nonnum:domainItemType	duration		true	us-gaap	InterestRateFloorMember
468	Interest Rate Contract [Member]	nonnum:domainItemType	duration		true	us-gaap	InterestRateContractMember
469	Inventory, Net	xbrli:monetaryItemType	instant	debit		us-gaap	InventoryNet
470	Inventory, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	InventoryPolicyTextBlock
471	Investments [Domain]	nonnum:domainItemType	duration		true	us-gaap	InvestmentTypeCategorizationMember
472	us-gaap:InvestmentIncomeNonoperating (label)	xbrli:monetaryItemType	duration	credit		us-gaap	InvestmentIncomeNonoperating
473	Investment Type [Axis]	xbrli:stringItemType	duration		true	us-gaap	InvestmentTypeAxis
474	Investments Classified by Contractual Maturity Date [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	InvestmentsClassifiedByContractualMaturityDateTableTextBlock
475	us-gaap:InvestmentsSegmentMember (label)	nonnum:domainItemType	duration		true	us-gaap	InvestmentsSegmentMember
476	Investments, Fair Value Disclosure	xbrli:monetaryItemType	instant	debit		us-gaap	InvestmentsFairValueDisclosure
477	Long-term Debt, Type [Domain]	nonnum:domainItemType	duration		true	us-gaap	LongtermDebtTypeDomain
478	Long-term Debt, Type [Axis]	xbrli:stringItemType	duration		true	us-gaap	LongtermDebtTypeAxis
479	us-gaap:LaborAndRelatedExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	LaborAndRelatedExpense
480	Land and Building [Member]	nonnum:domainItemType	duration		true	us-gaap	LandAndBuildingMember
481	Operating Leases, Rent Expense	xbrli:monetaryItemType	duration	debit		us-gaap	LeaseAndRentalExpense
482	Leasehold Improvements [Member]	nonnum:domainItemType	duration		true	us-gaap	LeaseholdImprovementsMember
483	Liabilities and Equity [Abstract]	xbrli:stringItemType	duration		true	us-gaap	LiabilitiesAndStockholdersEquityAbstract
484	Liabilities	xbrli:monetaryItemType	instant	credit		us-gaap	Liabilities
485	us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
486	Liabilities and Equity	xbrli:monetaryItemType	instant	credit		us-gaap	LiabilitiesAndStockholdersEquity
487	us-gaap:LiabilitiesAbstract (label)	xbrli:stringItemType	duration		true	us-gaap	LiabilitiesAbstract
488	us-gaap:LiabilitiesNoncurrentAbstract (label)	xbrli:stringItemType	duration		true	us-gaap	LiabilitiesNoncurrentAbstract
489	Liabilities, Current [Abstract]	xbrli:stringItemType	duration		true	us-gaap	LiabilitiesCurrentAbstract
490	Liabilities, Current	xbrli:monetaryItemType	instant	credit		us-gaap	LiabilitiesCurrent
491	us-gaap:LifeAndAnnuityInsuranceProductLineMember (label)	nonnum:domainItemType	duration		true	us-gaap	LifeAndAnnuityInsuranceProductLineMember
492	us-gaap:LifeInsuranceSegmentMember (label)	nonnum:domainItemType	duration		true	us-gaap	LifeInsuranceSegmentMember
493	Line of Credit Facility, Maximum Borrowing Capacity	xbrli:monetaryItemType	instant	credit		us-gaap	LineOfCreditFacilityMaximumBorrowingCapacity
494	Line of Credit, Current	xbrli:monetaryItemType	instant	credit		us-gaap	LinesOfCreditCurrent
495	us-gaap:LoanOriginationCommitmentsMember (label)	nonnum:domainItemType	duration		true	us-gaap	LoanOriginationCommitmentsMember
496	us-gaap:LoanPurchaseCommitmentsMember (label)	nonnum:domainItemType	duration		true	us-gaap	LoanPurchaseCommitmentsMember
497	Long-lived Assets by Geographic Areas [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	LongLivedAssetsByGeographicAreasTableTextBlock
498	Long-term Debt, Fair Value	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebtFairValue
499	Long-term Debt	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebt
500	Long-term Debt, Fiscal Year Maturity [Abstract]	xbrli:stringItemType	duration		true	us-gaap	LongTermDebtByMaturityAbstract
501	Long-term Debt and Capital Lease Obligations	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebtAndCapitalLeaseObligations
502	us-gaap:LongTermDebtMember (label)	nonnum:domainItemType	duration		true	us-gaap	LongTermDebtMember
503	Long-term Debt, Excluding Current Maturities [Abstract]	xbrli:stringItemType	duration		true	us-gaap	LongTermDebtNoncurrentAbstract
504	Long-term Debt, Maturities, Repayments of Principal in Year Five	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
505	Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
506	Long-term Debt, Maturities, Repayments of Principal after Year Five	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
507	Long-term Debt, Excluding Current Maturities	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebtNoncurrent
508	Long-term Debt, Maturities, Repayments of Principal in Year Three	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
509	Long-term Debt, Maturities, Repayments of Principal in Year Four	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
510	Long-term Debt, Maturities, Repayments of Principal in Year Two	xbrli:monetaryItemType	instant	credit		us-gaap	LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
511	Loss Contingency Nature [Axis]	xbrli:stringItemType	duration		true	us-gaap	LossContingenciesByNatureOfContingencyAxis
512	Loss Contingency, Accrual, Current	xbrli:monetaryItemType	instant	credit		us-gaap	LossContingencyAccrualCarryingValueCurrent
513	Loss Contingency, Nature [Domain]	nonnum:domainItemType	duration		true	us-gaap	LossContingencyNatureDomain
514	Loss Contingency, Loss in Period	xbrli:monetaryItemType	duration	debit		us-gaap	LossContingencyLossInPeriod
515	Mutual Fund [Member]	nonnum:domainItemType	duration		true	us-gaap	MutualFundMember
516	Valuation, Market Approach [Member]	nonnum:domainItemType	duration		true	us-gaap	MarketApproachValuationTechniqueMember
517	Marketable Securities [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	MarketableSecuritiesTextBlock
518	Marketable Securities, Current	xbrli:monetaryItemType	instant	debit		us-gaap	MarketableSecuritiesCurrent
519	Marketing and Advertising Expense	xbrli:monetaryItemType	duration	debit		us-gaap	MarketingAndAdvertisingExpense
520	Segment Reconciling Items [Member]	nonnum:domainItemType	duration		true	us-gaap	MaterialReconcilingItemsMember
521	us-gaap:MeasurementInputLapseRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputLapseRateMember
522	us-gaap:MeasurementInputMaturityMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputMaturityMember
523	us-gaap:MeasurementInputControlPremiumMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputControlPremiumMember
524	us-gaap:MeasurementInputPriceVolatilityMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputPriceVolatilityMember
525	us-gaap:MeasurementInputCreditSpreadMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputCreditSpreadMember
526	us-gaap:MeasurementInputDefaultRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputDefaultRateMember
527	us-gaap:MeasurementInputMortalityRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputMortalityRateMember
528	us-gaap:MeasurementInputExpectedTermMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputExpectedTermMember
529	us-gaap:MeasurementInputDiscountForLackOfMarketabilityMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputDiscountForLackOfMarketabilityMember
530	us-gaap:MeasurementInputCommodityFuturePriceMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputCommodityFuturePriceMember
531	us-gaap:MeasurementInputAppraisedValueMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputAppraisedValueMember
532	us-gaap:MeasurementInputOptionVolatilityMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputOptionVolatilityMember
533	us-gaap:MeasurementInputExpectedDividendPaymentMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputExpectedDividendPaymentMember
534	us-gaap:MeasurementInputExercisePriceMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputExercisePriceMember
535	us-gaap:MeasurementInputCounterpartyCreditRiskMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputCounterpartyCreditRiskMember
536	us-gaap:MeasurementInputCommodityForwardPriceMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputCommodityForwardPriceMember
537	us-gaap:MeasurementInputExpectedDividendRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputExpectedDividendRateMember
538	us-gaap:MeasurementInputCostToSellMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputCostToSellMember
539	us-gaap:MeasurementInputUtilizationRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputUtilizationRateMember
540	us-gaap:MeasurementInputEntityCreditRiskMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputEntityCreditRiskMember
541	us-gaap:MeasurementInputConversionPriceMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputConversionPriceMember
542	us-gaap:MeasurementInputConstantPrepaymentRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputConstantPrepaymentRateMember
543	us-gaap:MeasurementInputCommodityMarketPriceMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputCommodityMarketPriceMember
544	us-gaap:MeasurementInputTypeDomain (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputTypeDomain
545	us-gaap:MeasurementInputLossSeverityMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputLossSeverityMember
546	us-gaap:MeasurementInputSharePriceMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputSharePriceMember
547	us-gaap:MeasurementInputComparabilityAdjustmentMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputComparabilityAdjustmentMember
548	us-gaap:MeasurementInputPrepaymentRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputPrepaymentRateMember
549	us-gaap:MeasurementInputLongTermRevenueGrowthRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputLongTermRevenueGrowthRateMember
550	us-gaap:MeasurementInputCapRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputCapRateMember
551	us-gaap:MeasurementInputEbitdaMultipleMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputEbitdaMultipleMember
552	us-gaap:MeasurementInputWithdrawalRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputWithdrawalRateMember
553	us-gaap:MeasurementInputRiskFreeInterestRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputRiskFreeInterestRateMember
554	us-gaap:MeasurementInputRevenueMultipleMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputRevenueMultipleMember
555	us-gaap:MeasurementInputDiscountRateMember (label)	nonnum:domainItemType	duration		true	us-gaap	MeasurementInputDiscountRateMember
556	SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]	xbrli:stringItemType	duration		true	us-gaap	MovementInValuationAllowancesAndReservesRollForward
557	us-gaap:NonqualifiedPlanMember (label)	nonnum:domainItemType	duration		true	us-gaap	NonqualifiedPlanMember
558	us-gaap:NonparticipatingLifeInsurancePolicyMember (label)	nonnum:domainItemType	duration		true	us-gaap	NonparticipatingLifeInsurancePolicyMember
559	us-gaap:NASDAQIndexFutureMember (label)	nonnum:domainItemType	duration		true	us-gaap	NASDAQIndexFutureMember
560	us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent (label)	xbrli:monetaryItemType	duration	debit		us-gaap	NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
561	Net Cash Provided by (Used in) Financing Activities [Abstract]	xbrli:stringItemType	duration		true	us-gaap	NetCashProvidedByUsedInFinancingActivitiesAbstract
562	Net Cash Provided by (Used in) Financing Activities	xbrli:monetaryItemType	duration	debit		us-gaap	NetCashProvidedByUsedInFinancingActivities
563	Net Income (Loss) Available to Common Stockholders, Diluted	xbrli:monetaryItemType	duration	credit		us-gaap	NetIncomeLossAvailableToCommonStockholdersDiluted
564	Net Investment Hedging [Member]	nonnum:domainItemType	duration		true	us-gaap	NetInvestmentHedgingMember
565	Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]	xbrli:stringItemType	duration		true	us-gaap	NetIncomeLossAvailableToCommonStockholdersDilutedAbstract
566	Net Income (Loss) Available to Common Stockholders, Basic [Abstract]	xbrli:stringItemType	duration		true	us-gaap	NetIncomeLossAvailableToCommonStockholdersBasicAbstract
567	Net Cash Provided by (Used in) Investing Activities	xbrli:monetaryItemType	duration	debit		us-gaap	NetCashProvidedByUsedInInvestingActivities
568	Net Cash Provided by (Used in) Investing Activities [Abstract]	xbrli:stringItemType	duration		true	us-gaap	NetCashProvidedByUsedInInvestingActivitiesAbstract
569	Net Cash Provided by (Used in) Operating Activities [Abstract]	xbrli:stringItemType	duration		true	us-gaap	NetCashProvidedByUsedInOperatingActivitiesAbstract
570	Net Income (Loss) Available to Common Stockholders, Basic	xbrli:monetaryItemType	duration	credit		us-gaap	NetIncomeLossAvailableToCommonStockholdersBasic
571	Net Cash Provided by (Used in) Operating Activities	xbrli:monetaryItemType	duration			us-gaap	NetCashProvidedByUsedInOperatingActivities
572	Net Income (Loss) Attributable to Parent	xbrli:monetaryItemType	duration	credit		us-gaap	NetIncomeLoss
573	New Accounting Pronouncements, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	NewAccountingPronouncementsPolicyPolicyTextBlock
574	New Accounting Pronouncements or Change in Accounting Principle [Line Items]	xbrli:stringItemType	duration		true	us-gaap	NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
575	New Accounting Pronouncements or Change in Accounting Principle [Table]	xbrli:stringItemType	duration		true	us-gaap	NewAccountingPronouncementsOrChangeInAccountingPrincipleTable
576	Non-US [Member]	nonnum:domainItemType	duration		true	us-gaap	NonUsMember
577	us-gaap:NoninterestExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	NoninterestExpense
578	Nonoperating Income (Expense) [Member]	nonnum:domainItemType	duration		true	us-gaap	NonoperatingIncomeExpenseMember
579	Nonoperating Income (Expense)	xbrli:monetaryItemType	duration	credit		us-gaap	NonoperatingIncomeExpense
580	us-gaap:NonoperatingGainsLosses (label)	xbrli:monetaryItemType	duration	credit		us-gaap	NonoperatingGainsLosses
581	us-gaap:NontraditionalLongDurationContractsMember (label)	nonnum:domainItemType	duration		true	us-gaap	NontraditionalLongDurationContractsMember
582	Noncontrolling Interest, Increase from Sale of Parent Equity Interest	xbrli:monetaryItemType	duration	credit		us-gaap	NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
583	Not Designated as Hedging Instrument [Member]	nonnum:domainItemType	duration		true	us-gaap	NondesignatedMember
584	us-gaap:OverfundedPlanMember (label)	nonnum:domainItemType	duration		true	us-gaap	OverfundedPlanMember
585	OCI, before Reclassifications, Net of Tax, Attributable to Parent	xbrli:monetaryItemType	duration	credit		us-gaap	OciBeforeReclassificationsNetOfTaxAttributableToParent
586	Offsetting Liabilities [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	OffsettingLiabilitiesTableTextBlock
587	Offsetting Assets [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	OffsettingAssetsTableTextBlock
588	Offsetting Derivative Liabilities [Abstract]	xbrli:stringItemType	duration		true	us-gaap	OffsettingDerivativeLiabilitiesAbstract
589	us-gaap:OfficersCompensation (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OfficersCompensation
590	Operating Leases, Future Minimum Payments Due, Next Twelve Months	xbrli:monetaryItemType	instant	credit		us-gaap	OperatingLeasesFutureMinimumPaymentsDueCurrent
591	Operating Leases, Future Minimum Payments Due	xbrli:monetaryItemType	instant	credit		us-gaap	OperatingLeasesFutureMinimumPaymentsDue
592	Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	xbrli:stringItemType	duration		true	us-gaap	OperatingLeasesFutureMinimumPaymentsDueAbstract
593	Operating Lease, Liability	xbrli:monetaryItemType	instant	credit		us-gaap	OperatingLeaseLiability
594	Operating Segments [Member]	nonnum:domainItemType	duration		true	us-gaap	OperatingSegmentsMember
595	Operating Lease, Right-of-Use Asset	xbrli:monetaryItemType	instant	debit		us-gaap	OperatingLeaseRightOfUseAsset
596	us-gaap:OperatingCostsAndExpenses (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OperatingCostsAndExpenses
597	Operating Income (Loss)	xbrli:monetaryItemType	duration	credit		us-gaap	OperatingIncomeLoss
598	us-gaap:OperatingExpenses (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OperatingExpenses
599	Operating Leases, Future Minimum Payments Receivable, in Two Years	xbrli:monetaryItemType	instant	debit		us-gaap	OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears
600	Operating Leases, Future Minimum Payments Receivable, in Five Years	xbrli:monetaryItemType	instant	debit		us-gaap	OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears
601	Operating Leases, Future Minimum Payments Receivable, in Four Years	xbrli:monetaryItemType	instant	debit		us-gaap	OperatingLeasesFutureMinimumPaymentsReceivableInFourYears
602	Operating Leases, Future Minimum Payments Receivable [Abstract]	xbrli:stringItemType	duration		true	us-gaap	OperatingLeasesFutureMinimumPaymentsReceivableAbstract
603	Operating Loss Carryforwards	xbrli:monetaryItemType	instant	debit		us-gaap	OperatingLossCarryforwards
604	Operating Leases, Future Minimum Payments, Due in Four Years	xbrli:monetaryItemType	instant	credit		us-gaap	OperatingLeasesFutureMinimumPaymentsDueInFourYears
605	Operating Leases, Future Minimum Payments, Due Thereafter	xbrli:monetaryItemType	instant	credit		us-gaap	OperatingLeasesFutureMinimumPaymentsDueThereafter
606	Operating Leases, Future Minimum Payments, Due in Three Years	xbrli:monetaryItemType	instant	credit		us-gaap	OperatingLeasesFutureMinimumPaymentsDueInThreeYears
607	Operating Leases, Future Minimum Payments Receivable, in Three Years	xbrli:monetaryItemType	instant	debit		us-gaap	OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears
608	Operating Leases, Future Minimum Payments, Due in Five Years	xbrli:monetaryItemType	instant	credit		us-gaap	OperatingLeasesFutureMinimumPaymentsDueInFiveYears
609	Operating Leases, Future Minimum Payments Receivable	xbrli:monetaryItemType	instant	debit		us-gaap	OperatingLeasesFutureMinimumPaymentsReceivable
610	Operating Leases, Future Minimum Payments, Due in Two Years	xbrli:monetaryItemType	instant	credit		us-gaap	OperatingLeasesFutureMinimumPaymentsDueInTwoYears
611	Operating Leases, Future Minimum Payments Receivable, Current	xbrli:monetaryItemType	instant	debit		us-gaap	OperatingLeasesFutureMinimumPaymentsReceivableCurrent
612	Operating Leases, Future Minimum Payments Receivable, Thereafter	xbrli:monetaryItemType	instant	debit		us-gaap	OperatingLeasesFutureMinimumPaymentsReceivableThereafter
613	us-gaap:OptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	OptionMember
614	us-gaap:OptionOnSecuritiesMember (label)	nonnum:domainItemType	duration		true	us-gaap	OptionOnSecuritiesMember
615	Organization, Consolidation and Presentation of Financial Statements [Abstract]	xbrli:stringItemType	duration		true	us-gaap	OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
616	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
617	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	xbrli:monetaryItemType	duration	debit		us-gaap	OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
618	us-gaap:OtherLongdurationInsuranceProductLineMember (label)	nonnum:domainItemType	duration		true	us-gaap	OtherLongdurationInsuranceProductLineMember
619	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	xbrli:monetaryItemType	duration	debit		us-gaap	OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
620	Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax
621	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
622	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
623	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	xbrli:monetaryItemType	duration	debit		us-gaap	OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
624	Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAndTax
625	us-gaap:OtherShortdurationInsuranceProductLineMember (label)	nonnum:domainItemType	duration		true	us-gaap	OtherShortdurationInsuranceProductLineMember
626	Other Commitment	xbrli:monetaryItemType	instant	credit		us-gaap	OtherCommitment
627	us-gaap:OtherInsuranceProductLineMember (label)	nonnum:domainItemType	duration		true	us-gaap	OtherInsuranceProductLineMember
628	Other Commitments [Axis]	xbrli:stringItemType	duration		true	us-gaap	OtherCommitmentsAxis
629	Other Commitments [Domain]	nonnum:domainItemType	duration		true	us-gaap	OtherCommitmentsDomain
630	Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	xbrli:monetaryItemType	duration	debit		us-gaap	OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
631	Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
632	Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
633	Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	xbrli:monetaryItemType	duration	debit		us-gaap	OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax
634	Other Comprehensive Income (Loss), Net of Tax	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossNetOfTax
635	Other Noncash Income (Expense)	xbrli:monetaryItemType	duration	credit		us-gaap	OtherNoncashIncomeExpense
636	us-gaap:OtherAmortizationOfDeferredCharges (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherAmortizationOfDeferredCharges
637	Other Assets, Noncurrent	xbrli:monetaryItemType	instant	debit		us-gaap	OtherAssetsNoncurrent
638	us-gaap:OtherPensionPlansDefinedBenefitMember (label)	nonnum:domainItemType	duration		true	us-gaap	OtherPensionPlansDefinedBenefitMember
639	us-gaap:OtherAssets (label)	xbrli:monetaryItemType	instant	debit		us-gaap	OtherAssets
640	us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember (label)	nonnum:domainItemType	duration		true	us-gaap	OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember
641	Other Assets, Current	xbrli:monetaryItemType	instant	debit		us-gaap	OtherAssetsCurrent
642	Other Comprehensive Income (Loss), Net of Tax [Abstract]	xbrli:stringItemType	duration		true	us-gaap	OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract
643	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract]	xbrli:stringItemType	duration		true	us-gaap	OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract
644	Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax [Abstract]	xbrli:stringItemType	duration		true	us-gaap	OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract
645	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax [Abstract]	xbrli:stringItemType	duration		true	us-gaap	OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPeriodIncreaseDecreaseAbstract
646	Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax [Abstract]	xbrli:stringItemType	duration		true	us-gaap	OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract
647	us-gaap:OtherCostAndExpenseOperating (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherCostAndExpenseOperating
648	Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
649	us-gaap:OtherExpenses (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherExpenses
650	us-gaap:OtherDepreciationAndAmortization (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherDepreciationAndAmortization
651	us-gaap:OtherGeneralAndAdministrativeExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherGeneralAndAdministrativeExpense
652	us-gaap:OtherGeneralExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherGeneralExpense
653	Other Liabilities, Noncurrent	xbrli:monetaryItemType	instant	credit		us-gaap	OtherLiabilitiesNoncurrent
654	us-gaap:OtherLongTermDebtNoncurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	OtherLongTermDebtNoncurrent
655	Other Long-term Investments	xbrli:monetaryItemType	instant	debit		us-gaap	OtherLongTermInvestments
656	us-gaap:OtherLiabilities (label)	xbrli:monetaryItemType	instant	credit		us-gaap	OtherLiabilities
657	us-gaap:OtherLiabilitiesCurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	OtherLiabilitiesCurrent
658	us-gaap:OtherLaborRelatedExpenses (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherLaborRelatedExpenses
659	us-gaap:OtherNonoperatingGainsLosses (label)	xbrli:monetaryItemType	duration	credit		us-gaap	OtherNonoperatingGainsLosses
660	us-gaap:OtherNonoperatingExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherNonoperatingExpense
661	us-gaap:OtherNonoperatingIncome (label)	xbrli:monetaryItemType	duration	credit		us-gaap	OtherNonoperatingIncome
662	us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember (label)	nonnum:domainItemType	duration		true	us-gaap	OtherPostretirementBenefitPlansDefinedBenefitMember
663	us-gaap:OtherNoninterestExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherNoninterestExpense
664	us-gaap:OtherNonrecurringIncomeExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherNonrecurringIncomeExpense
665	us-gaap:OtherNonrecurringIncome (label)	xbrli:monetaryItemType	duration	credit		us-gaap	OtherNonrecurringIncome
666	us-gaap:OtherOperatingIncome (label)	xbrli:monetaryItemType	duration	credit		us-gaap	OtherOperatingIncome
667	Other Nonoperating Income (Expense)	xbrli:monetaryItemType	duration	credit		us-gaap	OtherNonoperatingIncomeExpense
668	us-gaap:OtherNonoperatingAssetRelatedIncome (label)	xbrli:monetaryItemType	duration	credit		us-gaap	OtherNonoperatingAssetRelatedIncome
669	us-gaap:OtherNonrecurringExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherNonrecurringExpense
670	us-gaap:OtherSellingAndMarketingExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherSellingAndMarketingExpense
671	us-gaap:OtherSellingGeneralAndAdministrativeExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	OtherSellingGeneralAndAdministrativeExpense
672	Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
673	Other Accrued Liabilities, Current	xbrli:monetaryItemType	instant	credit		us-gaap	OtherAccruedLiabilitiesCurrent
674	Other Assets [Member]	nonnum:domainItemType	duration		true	us-gaap	OtherAssetsMember
675	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	xbrli:monetaryItemType	duration	credit		us-gaap	OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
676	us-gaap:ParticipatingLifeInsurancePolicyMember (label)	nonnum:domainItemType	duration		true	us-gaap	ParticipatingLifeInsurancePolicyMember
677	Payments for Repurchase of Common Stock	xbrli:monetaryItemType	duration	credit		us-gaap	PaymentsForRepurchaseOfCommonStock
678	Payments to Acquire Businesses, Gross	xbrli:monetaryItemType	duration	credit		us-gaap	PaymentsToAcquireBusinessesGross
679	Payments to Acquire Other Investments	xbrli:monetaryItemType	duration	credit		us-gaap	PaymentsToAcquireOtherInvestments
680	Payments to Acquire Property, Plant, and Equipment	xbrli:monetaryItemType	duration	credit		us-gaap	PaymentsToAcquirePropertyPlantAndEquipment
681	Payments to Acquire Marketable Securities	xbrli:monetaryItemType	duration	credit		us-gaap	PaymentsToAcquireMarketableSecurities
682	us-gaap:PensionPlansDefinedBenefitMember (label)	nonnum:domainItemType	duration		true	us-gaap	PensionPlansDefinedBenefitMember
683	us-gaap:PolicyLoansMember (label)	nonnum:domainItemType	duration		true	us-gaap	PolicyLoansMember
684	us-gaap:PostemploymentRetirementBenefitsMember (label)	nonnum:domainItemType	duration		true	us-gaap	PostemploymentRetirementBenefitsMember
685	Preferred Stock, Par or Stated Value Per Share	num:perShareItemType	instant			us-gaap	PreferredStockParOrStatedValuePerShare
686	Preferred Stock, Shares Authorized	xbrli:sharesItemType	instant			us-gaap	PreferredStockSharesAuthorized
687	Preferred Stock, Shares Issued	xbrli:sharesItemType	instant			us-gaap	PreferredStockSharesIssued
688	Preferred Stock, Shares Outstanding	xbrli:sharesItemType	instant			us-gaap	PreferredStockSharesOutstanding
689	us-gaap:PrepaidExpenseAndOtherAssetsNoncurrent (label)	xbrli:monetaryItemType	instant	debit		us-gaap	PrepaidExpenseAndOtherAssetsNoncurrent
690	us-gaap:PrepaidExpenseAndOtherAssets (label)	xbrli:monetaryItemType	instant	debit		us-gaap	PrepaidExpenseAndOtherAssets
691	us-gaap:PrepaidExpenseAndOtherAssetsCurrent (label)	xbrli:monetaryItemType	instant	debit		us-gaap	PrepaidExpenseAndOtherAssetsCurrent
692	Reclassification, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	PriorPeriodReclassificationAdjustmentDescription
693	us-gaap:PrivateEquityFundsMember (label)	nonnum:domainItemType	duration		true	us-gaap	PrivateEquityFundsMember
694	us-gaap:PrivateEquityFundsDomesticMember (label)	nonnum:domainItemType	duration		true	us-gaap	PrivateEquityFundsDomesticMember
695	us-gaap:PrivateEquityFundsForeignMember (label)	nonnum:domainItemType	duration		true	us-gaap	PrivateEquityFundsForeignMember
696	Proceeds from (Payments for) Securities Purchased under Agreements to Resell	xbrli:monetaryItemType	duration	debit		us-gaap	ProceedsFromPaymentsForSecuritiesPurchasedUnderAgreementsToResell
697	Proceeds from Debt, Net of Issuance Costs	xbrli:monetaryItemType	duration	debit		us-gaap	ProceedsFromDebtNetOfIssuanceCosts
698	Proceeds from Collection of Notes Receivable	xbrli:monetaryItemType	duration	debit		us-gaap	ProceedsFromCollectionOfNotesReceivable
699	Proceeds from Issuance of Common Stock	xbrli:monetaryItemType	duration	debit		us-gaap	ProceedsFromIssuanceOfCommonStock
700	Proceeds from Noncontrolling Interests	xbrli:monetaryItemType	duration	debit		us-gaap	ProceedsFromMinorityShareholders
701	Proceeds from Sale and Maturity of Marketable Securities	xbrli:monetaryItemType	duration	debit		us-gaap	ProceedsFromSaleAndMaturityOfMarketableSecurities
702	Proceeds from Sale and Maturity of Other Investments	xbrli:monetaryItemType	duration	debit		us-gaap	ProceedsFromSaleAndMaturityOfOtherInvestments
703	Proceeds from Sale of Property, Plant, and Equipment	xbrli:monetaryItemType	duration	debit		us-gaap	ProceedsFromSaleOfPropertyPlantAndEquipment
704	Property, Plant and Equipment, Type [Axis]	xbrli:stringItemType	duration		true	us-gaap	PropertyPlantAndEquipmentByTypeAxis
705	us-gaap:PropertyAndCasualtyPersonalInsuranceProductLineMember (label)	nonnum:domainItemType	duration		true	us-gaap	PropertyAndCasualtyPersonalInsuranceProductLineMember
706	Property, Plant and Equipment, Useful Life	xbrli:durationItemType	duration			us-gaap	PropertyPlantAndEquipmentUsefulLife
707	us-gaap:PropertyInsuranceProductLineMember (label)	nonnum:domainItemType	duration		true	us-gaap	PropertyInsuranceProductLineMember
708	Property, Plant and Equipment [Line Items]	xbrli:stringItemType	duration		true	us-gaap	PropertyPlantAndEquipmentLineItems
709	us-gaap:PropertyAndCasualtyCommercialInsuranceProductLineMember (label)	nonnum:domainItemType	duration		true	us-gaap	PropertyAndCasualtyCommercialInsuranceProductLineMember
710	Property, Plant and Equipment [Member]	nonnum:domainItemType	duration		true	us-gaap	PropertyPlantAndEquipmentMember
711	Property, Plant and Equipment, Gross	xbrli:monetaryItemType	instant	debit		us-gaap	PropertyPlantAndEquipmentGross
712	us-gaap:PropertyLiabilityAndCasualtyInsuranceSegmentMember (label)	nonnum:domainItemType	duration		true	us-gaap	PropertyLiabilityAndCasualtyInsuranceSegmentMember
713	Property, Plant and Equipment [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	PropertyPlantAndEquipmentTextBlock
714	Property, Plant and Equipment, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	PropertyPlantAndEquipmentPolicyTextBlock
715	Property, Plant and Equipment, Net [Abstract]	xbrli:stringItemType	duration		true	us-gaap	PropertyPlantAndEquipmentNetAbstract
716	Property, Plant and Equipment, Type [Domain]	nonnum:domainItemType	duration		true	us-gaap	PropertyPlantAndEquipmentTypeDomain
717	Property, Plant and Equipment, Net	xbrli:monetaryItemType	instant	debit		us-gaap	PropertyPlantAndEquipmentNet
718	Purchase Obligation	xbrli:monetaryItemType	instant	credit		us-gaap	PurchaseObligation
719	us-gaap:QualifiedPlanMember (label)	nonnum:domainItemType	duration		true	us-gaap	QualifiedPlanMember
720	Renewable Energy Program [Member]	nonnum:domainItemType	duration		true	us-gaap	RenewableEnergyProgramMember
721	us-gaap:RealEstateFundsMember (label)	nonnum:domainItemType	duration		true	us-gaap	RealEstateFundsMember
722	Receivables, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	ReceivablesPolicyTextBlock
723	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	xbrli:monetaryItemType	duration	debit		us-gaap	ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
724	Reclassification out of Accumulated Other Comprehensive Income [Member]	nonnum:domainItemType	duration		true	us-gaap	ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
725	Reclassification out of Accumulated Other Comprehensive Income [Table]	xbrli:stringItemType	duration		true	us-gaap	ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable
726	Reclassification out of Accumulated Other Comprehensive Income [Axis]	xbrli:stringItemType	duration		true	us-gaap	ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis
727	Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	xbrli:stringItemType	duration		true	us-gaap	ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems
728	Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
729	Reclassification out of Accumulated Other Comprehensive Income [Domain]	nonnum:domainItemType	duration		true	us-gaap	ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain
730	Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]	xbrli:stringItemType	duration		true	us-gaap	ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward
731	Regulatory Asset [Domain]	nonnum:domainItemType	duration		true	us-gaap	RegulatoryAssetDomain
732	Regulatory Asset [Axis]	xbrli:stringItemType	duration		true	us-gaap	RegulatoryAssetAxis
733	us-gaap:RelatedPartyTransactionDomain (label)	nonnum:domainItemType	duration		true	us-gaap	RelatedPartyTransactionDomain
734	us-gaap:RelatedPartyDomain (label)	nonnum:domainItemType	duration		true	us-gaap	RelatedPartyDomain
735	Repayments of Debt and Capital Lease Obligations	xbrli:monetaryItemType	duration	credit		us-gaap	RepaymentsOfDebtAndCapitalLeaseObligations
736	Research and Development Arrangement [Member]	nonnum:domainItemType	duration		true	us-gaap	ResearchAndDevelopmentArrangementMember
737	Research and Development Arrangement, Contract to Perform for Others [Line Items]	xbrli:stringItemType	duration		true	us-gaap	ResearchAndDevelopmentArrangementContractToPerformForOthersLineItems
738	Research, Development, and Computer Software, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	ResearchDevelopmentAndComputerSoftwarePolicyTextBlock
739	Research and Development Expense	xbrli:monetaryItemType	duration	debit		us-gaap	ResearchAndDevelopmentExpense
740	Restricted Stock Units (RSUs) [Member]	nonnum:domainItemType	duration		true	us-gaap	RestrictedStockUnitsRSUMember
741	us-gaap:RestrictionTypeDomain (label)	nonnum:domainItemType	duration		true	us-gaap	RestrictionTypeDomain
742	us-gaap:ResultsOfOperationsGeneralAndAdministrativeRelatedToOilAndGasProducingActivities (label)	xbrli:monetaryItemType	duration	debit		us-gaap	ResultsOfOperationsGeneralAndAdministrativeRelatedToOilAndGasProducingActivities
743	Retained Earnings (Accumulated Deficit)	xbrli:monetaryItemType	instant	credit		us-gaap	RetainedEarningsAccumulatedDeficit
744	Retained Earnings [Member]	nonnum:domainItemType	duration		true	us-gaap	RetainedEarningsMember
745	us-gaap:RetirementPlanTaxStatusDomain (label)	nonnum:domainItemType	duration		true	us-gaap	RetirementPlanTaxStatusDomain
746	us-gaap:RetirementPlanSponsorLocationDomain (label)	nonnum:domainItemType	duration		true	us-gaap	RetirementPlanSponsorLocationDomain
747	us-gaap:RetirementPlanTypeDomain (label)	nonnum:domainItemType	duration		true	us-gaap	RetirementPlanTypeDomain
748	us-gaap:RetirementPlanFundingStatusDomain (label)	nonnum:domainItemType	duration		true	us-gaap	RetirementPlanFundingStatusDomain
749	Revenue from Contract with Customer, Excluding Assessed Tax	xbrli:monetaryItemType	duration	credit		us-gaap	RevenueFromContractWithCustomerExcludingAssessedTax
750	Revenue from Contract with Customer [Abstract]	xbrli:stringItemType	duration		true	us-gaap	RevenueFromContractWithCustomerAbstract
751	Revenue from Contract with Customer [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	RevenueFromContractWithCustomerPolicyTextBlock
752	Revenue from Contract with Customer [Text Block]	nonnum:textBlockItemType	duration			us-gaap	RevenueFromContractWithCustomerTextBlock
753	Revenue from External Customers by Geographic Areas [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	RevenueFromExternalCustomersByGeographicAreasTableTextBlock
754	Revenues from External Customers and Long-Lived Assets [Line Items]	xbrli:stringItemType	duration		true	us-gaap	RevenuesFromExternalCustomersAndLongLivedAssetsLineItems
755	us-gaap:Revenues (label)	xbrli:monetaryItemType	duration	credit		us-gaap	Revenues
756	Revolving Credit Facility [Member]	nonnum:domainItemType	duration		true	us-gaap	RevolvingCreditFacilityMember
757	Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock
758	us-gaap:SalariesWagesAndOfficersCompensation (label)	xbrli:monetaryItemType	duration	debit		us-gaap	SalariesWagesAndOfficersCompensation
759	us-gaap:SalariesAndWages (label)	xbrli:monetaryItemType	duration	debit		us-gaap	SalariesAndWages
760	Sale of Stock, Consideration Received Per Transaction	xbrli:monetaryItemType	duration	debit		us-gaap	SaleOfStockConsiderationReceivedPerTransaction
761	Sale of Stock, Consideration Received on Transaction	xbrli:monetaryItemType	duration	debit		us-gaap	SaleOfStockConsiderationReceivedOnTransaction
762	Sales Revenue, Net [Member]	nonnum:domainItemType	duration		true	us-gaap	SalesRevenueNetMember
763	Sales [Member]	nonnum:domainItemType	duration		true	us-gaap	SalesMember
764	Scenario, Forecast [Member]	nonnum:domainItemType	duration		true	us-gaap	ScenarioForecastMember
765	Scenario, Unspecified [Domain]	nonnum:domainItemType	duration		true	us-gaap	ScenarioUnspecifiedDomain
766	Schedule of Maturities of Long-term Debt [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfMaturitiesOfLongTermDebtTableTextBlock
767	Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
768	Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
769	Schedule of Unrealized Loss on Investments [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
770	Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
771	Schedule of Revenues from External Customers and Long-Lived Assets [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable
772	Schedule of Other Nonoperating Income (Expense) [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock
773	Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock
774	Schedule of Finite-Lived Intangible Assets [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfFiniteLivedIntangibleAssetsTable
775	Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
776	Schedule of Accrued Liabilities [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfAccruedLiabilitiesTableTextBlock
777	Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock
778	Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable
779	Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
780	Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
781	Schedule of Long-term Debt Instruments [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfDebtInstrumentsTextBlock
782	Schedule of Business Acquisitions, by Acquisition [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfBusinessAcquisitionsByAcquisitionTable
783	Schedule of Goodwill [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfGoodwillTextBlock
784	Schedule of Goodwill [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfGoodwillTable
785	Other Investments Not Readily Marketable [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfOtherInvestmentsNotReadilyMarketableTextBlock
786	Property, Plant and Equipment [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfPropertyPlantAndEquipmentTable
787	Schedule of Segment Reporting Information, by Segment [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfSegmentReportingInformationBySegmentTable
788	Debt and Equity Securities, FV-NI [Line Items]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems
789	Debt Securities, Trading, and Equity Securities, FV-NI [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable
790	Schedule of Segment Reporting Information, by Segment [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfSegmentReportingInformationBySegmentTextBlock
791	Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable
792	Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
793	Derivative Instruments, Gain (Loss) [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
794	Schedule of Research and Development Arrangement, Contract to Perform for Others [Table]	xbrli:stringItemType	duration		true	us-gaap	ScheduleOfResearchAndDevelopmentArrangementContractToPerformForOthersTable
795	Segment Reporting Information [Line Items]	xbrli:stringItemType	duration		true	us-gaap	SegmentReportingInformationLineItems
796	Segment Reporting Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	SegmentReportingDisclosureTextBlock
797	Segment Reporting [Abstract]	xbrli:stringItemType	duration		true	us-gaap	SegmentReportingAbstract
798	Segments [Domain]	nonnum:domainItemType	duration		true	us-gaap	SegmentDomain
799	us-gaap:SellingGeneralAndAdministrativeExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	SellingGeneralAndAdministrativeExpense
800	Selling and Marketing Expense	xbrli:monetaryItemType	duration	debit		us-gaap	SellingAndMarketingExpense
801	us-gaap:SellingExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	SellingExpense
802	us-gaap:SeniorDebtObligationsMember (label)	nonnum:domainItemType	duration		true	us-gaap	SeniorDebtObligationsMember
803	us-gaap:SeparatedHostFinancialInstrumentFairValueOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	SeparatedHostFinancialInstrumentFairValueOptionMember
804	Series of Individually Immaterial Business Acquisitions [Member]	nonnum:domainItemType	duration		true	us-gaap	SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember
805	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]	xbrli:stringItemType	duration		true	us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward
806	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	num:perShareItemType	duration			us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
807	Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	xbrli:durationItemType	duration			us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
808	Share Repurchase Program [Axis]	xbrli:stringItemType	duration		true	us-gaap	ShareRepurchaseProgramAxis
809	Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	xbrli:stringItemType	duration		true	us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
810	Share Repurchase Program [Domain]	nonnum:domainItemType	duration		true	us-gaap	ShareRepurchaseProgramDomain
811	Share-based Compensation	xbrli:monetaryItemType	duration	debit		us-gaap	ShareBasedCompensation
812	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	xbrli:sharesItemType	duration			us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
813	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	num:perShareItemType	duration			us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
814	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	xbrli:stringItemType	duration		true	us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward
815	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	xbrli:sharesItemType	duration			us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
816	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	xbrli:sharesItemType	instant			us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
817	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	xbrli:sharesItemType	duration			us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
818	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	xbrli:monetaryItemType	duration	debit		us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
819	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	num:perShareItemType	duration			us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
820	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	num:perShareItemType	instant			us-gaap	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
821	Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	ShareBasedCompensationOptionAndIncentivePlansPolicy
822	Equity Award [Domain]	nonnum:domainItemType	duration		true	us-gaap	ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain
823	Shares, Issued	xbrli:sharesItemType	instant			us-gaap	SharesIssued
824	us-gaap:ShortTermDebtMember (label)	nonnum:domainItemType	duration		true	us-gaap	ShortTermDebtMember
825	us-gaap:SingleStockFutureMember (label)	nonnum:domainItemType	duration		true	us-gaap	SingleStockFutureMember
826	State and Local Jurisdiction [Member]	nonnum:domainItemType	duration		true	us-gaap	StateAndLocalJurisdictionMember
827	Scenario [Axis]	xbrli:stringItemType	duration		true	us-gaap	StatementScenarioAxis
828	Statement of Financial Position [Abstract]	xbrli:stringItemType	duration		true	us-gaap	StatementOfFinancialPositionAbstract
829	Statement of Comprehensive Income [Abstract]	xbrli:stringItemType	duration		true	us-gaap	StatementOfIncomeAndComprehensiveIncomeAbstract
830	Class of Stock [Axis]	xbrli:stringItemType	duration		true	us-gaap	StatementClassOfStockAxis
831	Segments [Axis]	xbrli:stringItemType	duration		true	us-gaap	StatementBusinessSegmentsAxis
832	Statement [Line Items]	xbrli:stringItemType	duration		true	us-gaap	StatementLineItems
833	Statement [Table]	xbrli:stringItemType	duration		true	us-gaap	StatementTable
834	Statement of Cash Flows [Abstract]	xbrli:stringItemType	duration		true	us-gaap	StatementOfCashFlowsAbstract
835	Equity Components [Axis]	xbrli:stringItemType	duration		true	us-gaap	StatementEquityComponentsAxis
836	Statement of Stockholders' Equity [Abstract]	xbrli:stringItemType	duration		true	us-gaap	StatementOfStockholdersEquityAbstract
837	Stock Repurchase Program, Authorized Amount	xbrli:monetaryItemType	instant	credit		us-gaap	StockRepurchaseProgramAuthorizedAmount1
838	Stock Issued During Period, Value, New Issues	xbrli:monetaryItemType	duration	credit		us-gaap	StockIssuedDuringPeriodValueNewIssues
839	Stock Issued During Period, Shares, New Issues	xbrli:sharesItemType	duration			us-gaap	StockIssuedDuringPeriodSharesNewIssues
840	us-gaap:StockOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	StockOptionMember
841	Stock Repurchased and Retired During Period, Value	xbrli:monetaryItemType	duration	debit		us-gaap	StockRepurchasedAndRetiredDuringPeriodValue
842	Stock Repurchased and Retired During Period, Shares	xbrli:sharesItemType	duration			us-gaap	StockRepurchasedAndRetiredDuringPeriodShares
843	Stockholders' Equity Note Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	StockholdersEquityNoteDisclosureTextBlock
844	Stockholders' Equity Attributable to Parent	xbrli:monetaryItemType	instant	credit		us-gaap	StockholdersEquity
845	Stockholders' Equity Attributable to Parent [Abstract]	xbrli:stringItemType	duration		true	us-gaap	StockholdersEquityAbstract
846	us-gaap:StructuredSettlementAnnuityMember (label)	nonnum:domainItemType	duration		true	us-gaap	StructuredSettlementAnnuityMember
847	Summary of Income Tax Contingencies [Table Text Block]	nonnum:textBlockItemType	duration			us-gaap	SummaryOfIncomeTaxContingenciesTextBlock
848	Supplemental Balance Sheet Disclosures [Text Block]	nonnum:textBlockItemType	duration			us-gaap	SupplementalBalanceSheetDisclosuresTextBlock
849	Supplemental Cash Flow Information [Abstract]	xbrli:stringItemType	duration		true	us-gaap	SupplementalCashFlowInformationAbstract
850	us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember (label)	nonnum:domainItemType	duration		true	us-gaap	SupplementalEmployeeRetirementPlanDefinedBenefitMember
851	us-gaap:SuretySegmentMember (label)	nonnum:domainItemType	duration		true	us-gaap	SuretySegmentMember
852	us-gaap:SwapMember (label)	nonnum:domainItemType	duration		true	us-gaap	SwapMember
853	us-gaap:SwaptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	SwaptionMember
854	us-gaap:TerminalFundingAnnuityMember (label)	nonnum:domainItemType	duration		true	us-gaap	TerminalFundingAnnuityMember
855	Tax Credit Carryforward, Amount	xbrli:monetaryItemType	instant	debit		us-gaap	TaxCreditCarryforwardAmount
856	Technology Equipment [Member]	nonnum:domainItemType	duration		true	us-gaap	TechnologyEquipmentMember
857	us-gaap:TitleInsuranceSegmentMember (label)	nonnum:domainItemType	duration		true	us-gaap	TitleInsuranceSegmentMember
858	Financial Instruments [Domain]	nonnum:domainItemType	duration		true	us-gaap	TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain
859	us-gaap:TrustForBenefitOfEmployeesMember (label)	nonnum:domainItemType	duration		true	us-gaap	TrustForBenefitOfEmployeesMember
860	Type of Adoption [Domain]	nonnum:domainItemType	duration		true	us-gaap	TypeOfAdoptionMember
861	us-gaap:TotalReturnSwapMember (label)	nonnum:domainItemType	duration		true	us-gaap	TotalReturnSwapMember
862	us-gaap:UnderfundedPlanMember (label)	nonnum:domainItemType	duration		true	us-gaap	UnderfundedPlanMember
863	us-gaap:UnfundedPlanMember (label)	nonnum:domainItemType	duration		true	us-gaap	UnfundedPlanMember
864	Unfavorable Regulatory Action [Member]	nonnum:domainItemType	duration		true	us-gaap	UnfavorableRegulatoryActionMember
865	us-gaap:UniversalLifeMember (label)	nonnum:domainItemType	duration		true	us-gaap	UniversalLifeMember
866	Unrecognized Tax Benefits that Would Impact Effective Tax Rate	xbrli:monetaryItemType	instant	credit		us-gaap	UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
867	Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	xbrli:monetaryItemType	duration	debit		us-gaap	UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
868	Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	xbrli:monetaryItemType	duration	credit		us-gaap	UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
869	Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	xbrli:monetaryItemType	duration	debit		us-gaap	UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
870	Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	xbrli:monetaryItemType	instant	credit		us-gaap	UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
871	Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	xbrli:monetaryItemType	duration	credit		us-gaap	UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
872	Unrecognized Tax Benefits	xbrli:monetaryItemType	instant	credit		us-gaap	UnrecognizedTaxBenefits
873	Unsecured Debt [Member]	nonnum:domainItemType	duration		true	us-gaap	UnsecuredDebtMember
874	us-gaap:UnusedLinesOfCreditMember (label)	nonnum:domainItemType	duration		true	us-gaap	UnusedLinesOfCreditMember
875	Use of Estimates, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	UseOfEstimates
876	us-gaap:UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses (label)	xbrli:monetaryItemType	duration	debit		us-gaap	UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
877	us-gaap:UtilitiesOperatingExpense (label)	xbrli:monetaryItemType	duration	debit		us-gaap	UtilitiesOperatingExpense
878	SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	xbrli:monetaryItemType	instant	credit		us-gaap	ValuationAllowancesAndReservesBalance
879	us-gaap:ValuationTechniqueOptionPricingModelMember (label)	nonnum:domainItemType	duration		true	us-gaap	ValuationTechniqueOptionPricingModelMember
880	SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	xbrli:monetaryItemType	duration	debit		us-gaap	ValuationAllowancesAndReservesDeductions
881	us-gaap:ValuationTechniqueDiscountedCashFlowMember (label)	nonnum:domainItemType	duration		true	us-gaap	ValuationTechniqueDiscountedCashFlowMember
882	us-gaap:ValuationTechniqueMatrixPricingMember (label)	nonnum:domainItemType	duration		true	us-gaap	ValuationTechniqueMatrixPricingMember
883	SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	xbrli:monetaryItemType	duration	credit		us-gaap	ValuationAllowancesAndReservesChargedToCostAndExpense
884	Valuation Approach and Technique [Axis]	xbrli:stringItemType	duration		true	us-gaap	ValuationTechniqueAxis
885	us-gaap:ValuationTechniqueConsensusPricingModelMember (label)	nonnum:domainItemType	duration		true	us-gaap	ValuationTechniqueConsensusPricingModelMember
886	SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]	xbrli:stringItemType	duration		true	us-gaap	ValuationAllowancesAndReservesTypeAxis
887	Valuation Approach and Technique [Domain]	nonnum:domainItemType	duration		true	us-gaap	ValuationTechniqueDomain
888	SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]	nonnum:domainItemType	duration		true	us-gaap	ValuationAllowancesAndReservesDomain
889	Variable Interest Entity, Primary Beneficiary [Member]	nonnum:domainItemType	duration		true	us-gaap	VariableInterestEntityPrimaryBeneficiaryMember
890	Variable Interest Entity, Consolidated, Assets, Pledged	xbrli:monetaryItemType	instant	debit		us-gaap	VariableInterestEntityConsolidatedAssetsPledged
891	Variable Interest Entity, Consolidated, Liabilities, No Recourse	xbrli:monetaryItemType	instant	credit		us-gaap	VariableInterestEntityConsolidatedLiabilitiesNoRecourse
892	Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net	xbrli:monetaryItemType	instant	debit		us-gaap	VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet
893	Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member]	nonnum:domainItemType	duration		true	us-gaap	VariableInterestEntityNotPrimaryBeneficiaryAggregatedDisclosureMember
894	Variable Interest Entities [Axis]	xbrli:stringItemType	duration		true	us-gaap	VariableInterestEntitiesByClassificationOfEntityAxis
895	us-gaap:VariableAnnuityMember (label)	nonnum:domainItemType	duration		true	us-gaap	VariableAnnuityMember
896	Variable Interest Entity Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	VariableInterestEntityDisclosureTextBlock
897	us-gaap:VariableLifeMember (label)	nonnum:domainItemType	duration		true	us-gaap	VariableLifeMember
898	us-gaap:VentureCapitalFundsMember (label)	nonnum:domainItemType	duration		true	us-gaap	VentureCapitalFundsMember
899	us-gaap:VarianceSwapMember (label)	nonnum:domainItemType	duration		true	us-gaap	VarianceSwapMember
900	us-gaap:WarrantMember (label)	nonnum:domainItemType	duration		true	us-gaap	WarrantMember
901	us-gaap:WarrantyRightsAndObligationsFairValueOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	WarrantyRightsAndObligationsFairValueOptionMember
902	Weighted Average Number of Shares Outstanding, Basic	xbrli:sharesItemType	duration			us-gaap	WeightedAverageNumberOfSharesOutstandingBasic
903	Weighted Average Number of Shares Outstanding, Diluted	xbrli:sharesItemType	duration			us-gaap	WeightedAverageNumberOfDilutedSharesOutstanding
904	Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]	xbrli:stringItemType	duration		true	us-gaap	WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract
905	Weighted Average Number of Shares Outstanding, Basic [Abstract]	xbrli:stringItemType	duration		true	us-gaap	WeightedAverageNumberOfSharesOutstandingBasicAbstract
906	Weighted Average Number of Shares Outstanding Reconciliation [Abstract]	xbrli:stringItemType	duration		true	us-gaap	WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract
907	us-gaap:WrittenLoanCommitmentFairValueOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	WrittenLoanCommitmentFairValueOptionMember
908	Amendment Flag	xbrli:booleanItemType	duration			dei	AmendmentFlag
909	Current Fiscal Year End Date	xbrli:gMonthDayItemType	duration			dei	CurrentFiscalYearEndDate
910	Document Information [Line Items]	xbrli:stringItemType	duration		true	dei	DocumentInformationLineItems
911	Document Period End Date	xbrli:dateItemType	duration			dei	DocumentPeriodEndDate
912	Entities [Table]	xbrli:stringItemType	duration		true	dei	EntitiesTable
913	Entity [Domain]	nonnum:domainItemType	duration		true	dei	EntityDomain
914	Trading Symbol	xbrli:normalizedStringItemType	duration			dei	TradingSymbol
915	Entity Well-known Seasoned Issuer	dei:yesNoItemType	duration			dei	EntityWellKnownSeasonedIssuer
916	Entity Voluntary Filers	dei:yesNoItemType	duration			dei	EntityVoluntaryFilers
917	Entity Current Reporting Status	dei:yesNoItemType	duration			dei	EntityCurrentReportingStatus
918	Entity Filer Category	dei:filerCategoryItemType	duration			dei	EntityFilerCategory
919	Entity Public Float	xbrli:monetaryItemType	instant	credit		dei	EntityPublicFloat
920	Entity Registrant Name	xbrli:normalizedStringItemType	duration			dei	EntityRegistrantName
921	Entity Central Index Key	dei:centralIndexKeyItemType	duration			dei	EntityCentralIndexKey
922	Entity Common Stock, Shares Outstanding	xbrli:sharesItemType	instant			dei	EntityCommonStockSharesOutstanding
923	Document Fiscal Year Focus	xbrli:gYearItemType	duration			dei	DocumentFiscalYearFocus
924	Document Fiscal Period Focus	dei:fiscalPeriodItemType	duration			dei	DocumentFiscalPeriodFocus
925	Legal Entity [Axis]	xbrli:stringItemType	duration		true	dei	LegalEntityAxis
926	Document Type	dei:submissionTypeItemType	duration			dei	DocumentType
927	Entity Shell Company	xbrli:booleanItemType	duration			dei	EntityShellCompany
928	Entity Emerging Growth Company	xbrli:booleanItemType	duration			dei	EntityEmergingGrowthCompany
929	Entity Small Business	xbrli:booleanItemType	duration			dei	EntitySmallBusiness
930	Derivative, Notional Amount	xbrli:monetaryItemType	instant			invest	DerivativeNotionalAmount
931	goog:A2011NotesMember (label)	nonnum:domainItemType	duration		true	goog	A2011NotesMember 2011 Notes [Member]
932	goog:A2014NotesMember (label)	nonnum:domainItemType	duration		true	goog	A2014NotesMember 2014 Notes [Member]
933	goog:A2016NotesMember (label)	nonnum:domainItemType	duration		true	goog	A2016NotesMember 2016 Notes [Member]
934	goog:AbbVieIncMember (label)	nonnum:domainItemType	duration		true	goog	AbbVieIncMember AbbVie Inc [Member]
935	goog:AccruedCustomerLiabilitiesCurrent (label)	xbrli:monetaryItemType	instant	credit		goog	AccruedCustomerLiabilitiesCurrent Accrued Customer Liabilities, Current
936	goog:AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember (label)	nonnum:domainItemType	duration		true	goog	AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember Accrued Expenses And Other Liabilities, Current And Non-Current [Member]
937	goog:AccruedRevenueShare (label)	xbrli:monetaryItemType	instant	credit		goog	AccruedRevenueShare Aggregate carrying amount, as of the balance sheet date, of current obligations incurred but not paid under the revenue share arrangements. Accrued revenue share is expected to be paid within one year or the normal operating cycle, if longer.
938	goog:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax (label)	xbrli:monetaryItemType	instant	credit		goog	AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax Accumulated change, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses.
939	goog:AccumulatedPaymentsForOtherCommitments (label)	xbrli:monetaryItemType	instant	credit		goog	AccumulatedPaymentsForOtherCommitments Accumulated Payments for Other Commitments
940	goog:AcquisitionrelatedIntangibleAssetsMember (label)	nonnum:domainItemType	duration		true	goog	AcquisitionrelatedIntangibleAssetsMember Acquisition-related Intangible Assets [Member]
941	goog:AcquisitionsNetOfCashAcquiredAndPurchasesOfIntangibleAndOtherAssets (label)	xbrli:monetaryItemType	duration	credit		goog	AcquisitionsNetOfCashAcquiredAndPurchasesOfIntangibleAndOtherAssets The cash out flow associated with the acquisitions of businesses, net of the cash acquired, and purchases of intangible and other assets.
942	goog:AdvertisingRevenueMember (label)	nonnum:domainItemType	duration		true	goog	AdvertisingRevenueMember Advertising Revenue [Member]
943	goog:AmericasExcludingUnitedStatesMember (label)	nonnum:domainItemType	duration		true	goog	AmericasExcludingUnitedStatesMember Americas Excluding United States [Member]
944	goog:AmortizationAndImpairmentOfIntangibleAssets (label)	xbrli:monetaryItemType	duration	debit		goog	AmortizationAndImpairmentOfIntangibleAssets Amortization and Impairment of Intangible Assets
945	goog:BalanceSheetComponentsDisclosureAbstract (label)	xbrli:stringItemType	duration		true	goog	BalanceSheetComponentsDisclosureAbstract Balance Sheet Components Disclosure [Abstract]
946	goog:CalicoMember (label)	nonnum:domainItemType	duration		true	goog	CalicoMember Calico [Member]
947	goog:CapitalClassCMember (label)	nonnum:domainItemType	duration		true	goog	CapitalClassCMember Capital Class C [Member]
948	goog:CashAndCashEquivalentsAndMarketableSecuritiesPolicyPolicyTextBlock (label)	nonnum:textBlockItemType	duration			goog	CashAndCashEquivalentsAndMarketableSecuritiesPolicyPolicyTextBlock A description of a company's cash and cash equivalents and marketable securities accounting policy.
949	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	xbrli:monetaryItemType	instant	debit		goog	CashCashEquivalentsAndAvailableForSaleDebtSecurities Cash, Cash Equivalents And Available-For-Sale Debt Securities
950	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	xbrli:monetaryItemType	instant	debit		goog	CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost Cash, Cash Equivalents And Available-For-Sale Debt Securities, Amortized Cost
951	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	xbrli:monetaryItemType	instant	credit		goog	CashCollateralReceivedFromDerivativeFinancialInstruments Cash collateral received from derivative financial instruments.
952	goog:CashFlowHedgeForeignExchangeContractsAbstract (label)	xbrli:stringItemType	duration		true	goog	CashFlowHedgeForeignExchangeContractsAbstract Cash Flow Hedge, Foreign Exchange Contracts [Abstract]
953	goog:CommitmentsAndContingenciesDisclosureLineItems (label)	xbrli:stringItemType	duration		true	goog	CommitmentsAndContingenciesDisclosureLineItems Commitments and Contingencies Disclosure [Line Items]
954	goog:CommitmentsAndContingenciesDisclosureTable (label)	xbrli:stringItemType	duration		true	goog	CommitmentsAndContingenciesDisclosureTable Commitments and Contingencies Disclosure [Table]
955	goog:CommitmenttoInvestMember (label)	nonnum:domainItemType	duration		true	goog	CommitmenttoInvestMember Commitment to Invest [Member]
956	goog:CommonStockNumberofVotes (label)	xbrli:integerItemType	instant			goog	CommonStockNumberofVotes Number of votes allocated to each share, per class
957	goog:CompensationExpensePerformanceFees (label)	xbrli:monetaryItemType	duration	debit		goog	CompensationExpensePerformanceFees Compensation Expense, Performance Fees
958	goog:DebtInstrumentAmountSubjectToExchange (label)	xbrli:monetaryItemType	instant	credit		goog	DebtInstrumentAmountSubjectToExchange Debt Instrument, Amount Subject to Exchange
959	goog:DebtSecuritiesUnrealizedGainLossOnExtinguishmentOfSecurities (label)	xbrli:monetaryItemType	duration	credit		goog	DebtSecuritiesUnrealizedGainLossOnExtinguishmentOfSecurities Debt Securities, Unrealized Gain (Loss) On Extinguishment Of Securities
960	goog:DeferredTaxAssetsBasisDifferenceInInvestmentInHomeBusiness (label)	xbrli:monetaryItemType	instant	debit		goog	DeferredTaxAssetsBasisDifferenceInInvestmentInHomeBusiness The tax effect as of the balance sheet date of the amount of future tax deductions arising from basis difference in investment in Home business.
961	goog:DeferredTaxAssetsDeferredCostSharing (label)	xbrli:monetaryItemType	instant	debit		goog	DeferredTaxAssetsDeferredCostSharing Deferred Tax Assets, Deferred Cost Sharing
962	goog:DeferredTaxLiabilitiesRenewableEnergyInvestments (label)	xbrli:monetaryItemType	instant	credit		goog	DeferredTaxLiabilitiesRenewableEnergyInvestments Deferred Tax Liabilities, Renewable Energy Investments
963	goog:DefinedContributionPlanNumberofPlans (label)	xbrli:integerItemType	duration			goog	DefinedContributionPlanNumberofPlans Defined Contribution Plan, Number of Plans
964	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	xbrli:monetaryItemType	duration	debit		goog	DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment Depreciation, Amortization, and Impairment on Disposition of Property and Equipment
965	goog:DepreciationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	xbrli:monetaryItemType	duration	debit		goog	DepreciationAndImpairmentOnDispositionOfPropertyAndEquipment The amount of expense recognized in the current period that reflects the impairment of property and equipment and the allocation of the cost of tangible assets over the assets' useful lives which includes production and non-production related depreciation.
966	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	xbrli:monetaryItemType	duration	credit		goog	DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Amortization Approach, Net
967	goog:DerivativesNotDesignatedasCashFlowHedgesForeignExchangeContractsAbstract (label)	xbrli:stringItemType	duration		true	goog	DerivativesNotDesignatedasCashFlowHedgesForeignExchangeContractsAbstract Derivatives Not Designated as Cash Flow Hedges, Foreign Exchange Contracts [Abstract]
968	goog:DilutiveSecuritiesEffectOnBasicEarningsPerShareDilutiveEquitySecurities (label)	xbrli:monetaryItemType	duration	credit		goog	DilutiveSecuritiesEffectOnBasicEarningsPerShareDilutiveEquitySecurities Dilutive Securities, Effect On Basic Earnings Per Share, Dilutive Equity Securities
969	goog:DocumentandEntityInformationAbstract (label)	xbrli:stringItemType	duration		true	goog	DocumentandEntityInformationAbstract Document and Entity Information [Abstract]
970	goog:EarningsPerShareDisclosureLineItems (label)	xbrli:stringItemType	duration		true	goog	EarningsPerShareDisclosureLineItems Earnings Per Share Disclosure [Line Items]
971	goog:EarningsPerShareDisclosureTable (label)	xbrli:stringItemType	duration		true	goog	EarningsPerShareDisclosureTable Earnings Per Share Disclosure [Table]
972	goog:EffectiveIncomeTaxRateReconciliationRegulatoryFine (label)	num:percentItemType	duration			goog	EffectiveIncomeTaxRateReconciliationRegulatoryFine Effective Income Tax Rate Reconciliation, Regulatory Fine
973	goog:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsPercent (label)	num:percentItemType	duration			goog	EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsPercent Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Transition Tax on Accumulated Foreign Earnings, Percent
974	goog:EffectofDerivativesNotDesignatedasCashFlowHedgesonResultsofOperationsAbstract (label)	xbrli:stringItemType	duration		true	goog	EffectofDerivativesNotDesignatedasCashFlowHedgesonResultsofOperationsAbstract Effect of Derivatives Not Designated as Cash Flow Hedges on Results of Operations [Abstract]
975	goog:EquitySecuritiesOriginationUponExtinguishmentOfDebtSecuritiesMember (label)	nonnum:domainItemType	duration		true	goog	EquitySecuritiesOriginationUponExtinguishmentOfDebtSecuritiesMember Equity Securities, Origination Upon Extinguishment Of Debt Securities [Member]
976	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount (label)	xbrli:monetaryItemType	duration	credit		goog	EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount Equity Securities without Readily Determinable Fair Value, Annual Amount
977	goog:EquitySecuritieswithoutReadilyDeterminableFairValueCostBasis (label)	xbrli:monetaryItemType	instant	debit		goog	EquitySecuritieswithoutReadilyDeterminableFairValueCostBasis Equity Securities without Readily Determinable Fair Value, Cost Basis
978	goog:FairValueHedgeForeignExchangeContractsAbstract (label)	xbrli:stringItemType	duration		true	goog	FairValueHedgeForeignExchangeContractsAbstract Fair Value Hedge, Foreign Exchange Contracts [Abstract]
979	goog:FinancialInstrumentsAndFairValueLineItems (label)	xbrli:stringItemType	duration		true	goog	FinancialInstrumentsAndFairValueLineItems Financial Instruments and Fair Value [Line Items]
980	goog:FinancialInstrumentsAndFairValueTable (label)	xbrli:stringItemType	duration		true	goog	FinancialInstrumentsAndFairValueTable Financial Instruments and Fair Value [Table]
981	goog:GainLossfromComponentsExcludedfromAssessmentofCashFlowHedgeEffectivenessRecordedinAOCINet (label)	xbrli:monetaryItemType	duration	credit		goog	GainLossfromComponentsExcludedfromAssessmentofCashFlowHedgeEffectivenessRecordedinAOCINet Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Recorded in AOCI, Net
982	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	xbrli:monetaryItemType	duration	credit		goog	GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet Gain (Loss) from Components Excluded from Assessment of Net Investment Hedge Effectiveness, Net
983	goog:GoogleInc.Member (label)	nonnum:domainItemType	duration		true	goog	GoogleInc.Member Google Inc. [Member]
984	goog:GoogleNetworkMembersPropertiesMember (label)	nonnum:domainItemType	duration		true	goog	GoogleNetworkMembersPropertiesMember Google Network Members' Properties [Member]
985	goog:GooglePropertiesMember (label)	nonnum:domainItemType	duration		true	goog	GooglePropertiesMember Google Properties [Member]
986	goog:GovernmentBondsMember (label)	nonnum:domainItemType	duration		true	goog	GovernmentBondsMember Government Bonds [Member]
987	goog:HTCMember (label)	nonnum:domainItemType	duration		true	goog	HTCMember HTC [Member]
988	goog:ImpactofTaxCutsandJobsActAbstract (label)	xbrli:stringItemType	duration		true	goog	ImpactofTaxCutsandJobsActAbstract Impact of Tax Cuts and Jobs Act [Abstract]
989	goog:ImpairmentOfMarketableAndNonMarketableSecuritiesPolicyPolicyTextBlock (label)	nonnum:textBlockItemType	duration			goog	ImpairmentOfMarketableAndNonMarketableSecuritiesPolicyPolicyTextBlock Describes an entity's accounting policy for recognizing and measuring the impairment of marketable and non-marketable securities.
990	goog:IncomeLossfromEquityMethodInvestmentsandOtherthanTemporaryImpairmentNet (label)	xbrli:monetaryItemType	duration	credit		goog	IncomeLossfromEquityMethodInvestmentsandOtherthanTemporaryImpairmentNet Income (Loss) from Equity Method Investments and Other than Temporary Impairment, Net
991	goog:IncomeTaxesLineItems (label)	xbrli:stringItemType	duration		true	goog	IncomeTaxesLineItems Income Taxes [Line Items]
992	goog:IncomeTaxesTable (label)	xbrli:stringItemType	duration		true	goog	IncomeTaxesTable Income Taxes [Table]
993	goog:IncreaseDecreaseInAccruedRevenueShare (label)	xbrli:monetaryItemType	duration	debit		goog	IncreaseDecreaseInAccruedRevenueShare The net change during the reporting period in the aggregate amount of obligations incurred but not paid under the revenue share arrangements.
994	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	xbrli:sharesItemType	duration			goog	IncrementalCommonSharesAttributableToConversionOfCommonStock Dilutive impact on our earnings per share for the period as a result of conversion of Class B to Class A common stock.
995	goog:InvestmentsUnrealizedLossPositionLineItems (label)	xbrli:stringItemType	duration		true	goog	InvestmentsUnrealizedLossPositionLineItems Investments, Unrealized Loss Position [Line Items]
996	goog:InvestmentsUnrealizedLossPositionTable (label)	xbrli:stringItemType	duration		true	goog	InvestmentsUnrealizedLossPositionTable Investments, Unrealized Loss Position [Table]
997	goog:LongLivedAssetsPolicyPolicyTextBlock (label)	nonnum:textBlockItemType	duration			goog	LongLivedAssetsPolicyPolicyTextBlock Describes an entity's accounting policy for long-lived assets including goodwill and other acquired intangible assets.
998	goog:MarketableDebtSecuritiesMember (label)	nonnum:domainItemType	duration		true	goog	MarketableDebtSecuritiesMember Marketable Debt Securities [Member]
999	goog:MarketableEquitySecuritiesMember (label)	nonnum:domainItemType	duration		true	goog	MarketableEquitySecuritiesMember Marketable Equity Securities [Member]
1000	goog:MoneyMarketAndOtherFundsMember (label)	nonnum:domainItemType	duration		true	goog	MoneyMarketAndOtherFundsMember Money Market and Other Funds [Member]
1001	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	nonnum:domainItemType	duration		true	goog	MortgageBackedandAssetBackedSecuritiesMember Mortgage Backed and Asset Backed Securities [Member]
1002	goog:NatureOfOperationsPolicyPolicyTextBlock (label)	nonnum:textBlockItemType	duration			goog	NatureOfOperationsPolicyPolicyTextBlock Disclosure related to our nature of operations.
1003	goog:NetIncomeLossAvailableToCommonStockholdersBeforeReallocationOfUndistributedEarningsDiluted (label)	xbrli:monetaryItemType	duration	credit		goog	NetIncomeLossAvailableToCommonStockholdersBeforeReallocationOfUndistributedEarningsDiluted Net Income (Loss) Available To Common Stockholders Before Reallocation Of Undistributed Earnings, Diluted
1004	goog:NetInvestmentHedgeForeignExchangeContractsAbstract (label)	xbrli:stringItemType	duration		true	goog	NetInvestmentHedgeForeignExchangeContractsAbstract Net Investment Hedge, Foreign Exchange Contracts [Abstract]
1005	goog:NetProceedsPaymentsRelatedToStockBasedAwardActivities (label)	xbrli:monetaryItemType	duration	credit		goog	NetProceedsPaymentsRelatedToStockBasedAwardActivities The net cash inflow (outflow) associated with the tax withholding payments on behalf of employees upon the net settlement of their vested restricted stock units, and the cash proceeds received from the exercise of stock options.
1006	goog:NetworkEquipmentMember (label)	nonnum:domainItemType	duration		true	goog	NetworkEquipmentMember Network Equipment [Member]
1007	goog:NonCancelableFutureMinimumLeasePayments (label)	xbrli:monetaryItemType	instant	credit		goog	NonCancelableFutureMinimumLeasePayments Non-cancelable future minimum lease payments.
1008	goog:NonMarketableDebtSecuritiesMember (label)	nonnum:domainItemType	duration		true	goog	NonMarketableDebtSecuritiesMember Non-Marketable Debt Securities [Member]
1009	goog:NonMarketableEquityInvestmentsPolicyPolicyTextBlock (label)	nonnum:textBlockItemType	duration			goog	NonMarketableEquityInvestmentsPolicyPolicyTextBlock Describes an entity's accounting policies for investment in non-marketable equity securities.
1010	goog:NumberOfClassesOfCommonStock (label)	xbrli:integerItemType	instant			goog	NumberOfClassesOfCommonStock Number of classes of common stock authorized by the Board of Directors.
1011	goog:NumberOfTaxJurisdictions (label)	xbrli:integerItemType	duration			goog	NumberOfTaxJurisdictions Number of Tax Jurisdictions
1012	goog:NumberOfTranches (label)	xbrli:integerItemType	instant			goog	NumberOfTranches Number of Tranches
1013	goog:OperatingLeasesFutureMinimumPaymentsDueNetFiscalYearMaturityAbstract (label)	xbrli:stringItemType	duration		true	goog	OperatingLeasesFutureMinimumPaymentsDueNetFiscalYearMaturityAbstract Operating Leases, Future Minimum Payments Due, Net, Fiscal Year Maturity [Abstract]
1014	goog:OperatingLeasesFutureMinimumPaymentsDueNetNextTwelveMonths (label)	xbrli:monetaryItemType	instant	credit		goog	OperatingLeasesFutureMinimumPaymentsDueNetNextTwelveMonths Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year, net of minimum rental payments receivable in the next fiscal year following the latest fiscal year for operating subleases having an initial or remaining non-cancelable letter-terms in excess of one year.
1015	goog:OperatingLeasesFutureMinimumPaymentsDueNetThereafter (label)	xbrli:monetaryItemType	instant	credit		goog	OperatingLeasesFutureMinimumPaymentsDueNetThereafter Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year, net of minimum rental payments receivable after the fifth fiscal year following the latest fiscal year for operating subleases having an initial or remaining non-cancelable letter-terms in excess of one year.
1016	goog:OperatingLeasesFutureMinimumPaymentsDueNetTotal (label)	xbrli:monetaryItemType	instant	credit		goog	OperatingLeasesFutureMinimumPaymentsDueNetTotal Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year, net of minimum rental payments receivable for operating subleases having an initial or remaining non-cancelable letter-terms in excess of one year.
1017	goog:OperatingLeasesFutureMinimumPaymentsDueNetinFiveYears (label)	xbrli:monetaryItemType	instant	credit		goog	OperatingLeasesFutureMinimumPaymentsDueNetinFiveYears Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year, net of minimum rental payments receivable in the fifth fiscal year following the latest fiscal year for operating subleases having an initial or remaining non-cancelable letter-terms in excess of one year.
1018	goog:OperatingLeasesFutureMinimumPaymentsDueNetinFourYears (label)	xbrli:monetaryItemType	instant	credit		goog	OperatingLeasesFutureMinimumPaymentsDueNetinFourYears Amount of required minimum rental payments maturing in the fourth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year, net of minimum rental payments receivable in the fourth fiscal year following the latest fiscal year for operating subleases having an initial or remaining non-cancelable letter-terms in excess of one year.
1019	goog:OperatingLeasesFutureMinimumPaymentsDueNetinThreeYears (label)	xbrli:monetaryItemType	instant	credit		goog	OperatingLeasesFutureMinimumPaymentsDueNetinThreeYears Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year, net of minimum rental payments receivable in the third fiscal year following the latest fiscal year for operating subleases having an initial or remaining non-cancelable letter-terms in excess of one year.
1020	goog:OperatingLeasesFutureMinimumPaymentsDueNetinTwoYears (label)	xbrli:monetaryItemType	instant	credit		goog	OperatingLeasesFutureMinimumPaymentsDueNetinTwoYears Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year, net of minimum rental payments receivable in the second fiscal year following the latest fiscal year for operating subleases having an initial or remaining non-cancelable letter-terms in excess of one year.
1021	goog:OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems (label)	xbrli:stringItemType	duration		true	goog	OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems Organization And Summary Of Significant Accounting Policies [Line Items]
1022	goog:OrganizationAndSummaryOfSignificantAccountingPoliciesTable (label)	xbrli:stringItemType	duration		true	goog	OrganizationAndSummaryOfSignificantAccountingPoliciesTable Organization And Summary Of Significant Accounting Policies [Table]
1023	goog:OtherInvestmentNotReadilyMarketableRealizedGainLossIncludedInEarnings (label)	xbrli:monetaryItemType	duration	credit		goog	OtherInvestmentNotReadilyMarketableRealizedGainLossIncludedInEarnings Other Investment Not Readily Marketable, Realized Gain (Loss) Included In Earnings
1024	goog:OtherInvestmentNotReadilyMarketableSettlementsDuringPeriod (label)	xbrli:monetaryItemType	duration	credit		goog	OtherInvestmentNotReadilyMarketableSettlementsDuringPeriod Other Investment Not Readily Marketable, Settlements During Period
1025	goog:OtherRevenuesMember (label)	nonnum:domainItemType	duration		true	goog	OtherRevenuesMember Other Revenues [Member]
1026	goog:PatentsAndDevelopedTechnologyMember (label)	nonnum:domainItemType	duration		true	goog	PatentsAndDevelopedTechnologyMember Patents and developed technology
1027	goog:ReallocationOfUndistributedEarnings (label)	xbrli:monetaryItemType	duration	debit		goog	ReallocationOfUndistributedEarnings Reallocation of undistributed earnings to Class B shares.
1028	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	xbrli:monetaryItemType	duration	credit		goog	ReallocationOfUndistributedEarningsAsResultOfConversionOfShares Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares.
1029	goog:ServerEquipmentMember (label)	nonnum:domainItemType	duration		true	goog	ServerEquipmentMember Server Equipment [Member]
1030	goog:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationTerm (label)	xbrli:durationItemType	duration			goog	ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationTerm Share Based Compensation Arrangement by Share Based Payment Award, Options, Expiration Term
1031	goog:ShareRepurchaseProgramMember (label)	nonnum:domainItemType	duration		true	goog	ShareRepurchaseProgramMember Share Repurchase Program [Member]
1032	goog:StockholdersEquityNoteLineItems (label)	xbrli:stringItemType	duration		true	goog	StockholdersEquityNoteLineItems Stockholders Equity Note [Line Items]
1033	goog:StockholdersEquityNoteTable (label)	xbrli:stringItemType	duration		true	goog	StockholdersEquityNoteTable Stockholders Equity Note [Table]
1034	goog:TaxBenefitFromStockBasedAwardActivity (label)	xbrli:monetaryItemType	duration	debit		goog	TaxBenefitFromStockBasedAwardActivity Reductions in the entity's income taxes that arise when compensation cost (from non-qualified stock options, vesting of restricted stock units and restricted stock) recognized on the entity's tax return exceeds compensation cost from non-qualified stock options, restricted stock units and restricted stock recognized on the income statement. Includes excess tax benefit realized.
1035	goog:TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseBenefit (label)	xbrli:monetaryItemType	duration	debit		goog	TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseBenefit Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense (Benefit)
1036	goog:TaxCutsandJobsActof2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit (label)	xbrli:monetaryItemType	duration	debit		goog	TaxCutsandJobsActof2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit)
1037	goog:TaxWithholdingRelatedToVestingOfRestrictedStockUnits (label)	xbrli:monetaryItemType	duration	debit		goog	TaxWithholdingRelatedToVestingOfRestrictedStockUnits Tax withholding related to the vesting of restricted stock units during the period.
1038	goog:TradenamesAndOtherMember (label)	nonnum:domainItemType	duration		true	goog	TradenamesAndOtherMember Tradenames and other
1039	goog:UnsecuredSeniorNotes3.375dueonFebruary2024andUnsecuredSeniorNotes3.625DueMay2021Member (label)	nonnum:domainItemType	duration		true	goog	UnsecuredSeniorNotes3.375dueonFebruary2024andUnsecuredSeniorNotes3.625DueMay2021Member Unsecured Senior Notes 3.375% due on February 2024 and Unsecured Senior Notes 3.625% Due May 2021 [Member]
1040	goog:UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember (label)	nonnum:domainItemType	duration		true	goog	UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember Unsecured Senior Notes One Point Nine Nine Eight Percent Due August Fifteen Twenty Twenty-Six [Member]
1041	goog:UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember (label)	nonnum:domainItemType	duration		true	goog	UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember Unsecured Senior Notes, 3.625 Percent Due May 19, 2021 [Member]
1042	goog:UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember (label)	nonnum:domainItemType	duration		true	goog	UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember 3.375% Notes due on February 25, 2024
1043	goog:VerilyMember (label)	nonnum:domainItemType	duration		true	goog	VerilyMember Verily [Member]

Model Structures

Model Structure
Network	0001000 - Document - Document and Entity Information (http://www.google.com/role/DocumentAndEntityInformation)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	goog:DocumentandEntityInformationAbstract (label)	Abstract	duration		goog:DocumentandEntityInformationAbstract
2	dei:EntitiesTable (terseLabel)	Table	duration		dei:EntitiesTable
3	us-gaap:StatementClassOfStockAxis (terseLabel)	Axis	duration		us-gaap:StatementClassOfStockAxis
4	us-gaap:ClassOfStockDomain (terseLabel)	Member	duration		us-gaap:ClassOfStockDomain
5	us-gaap:CommonClassAMember (terseLabel)	Member	duration		us-gaap:CommonClassAMember
6	us-gaap:CommonClassBMember (terseLabel)	Member	duration		us-gaap:CommonClassBMember
7	goog:CapitalClassCMember (terseLabel)	Member	duration		goog:CapitalClassCMember
8	dei:DocumentInformationLineItems (terseLabel)	LineItems	duration		dei:DocumentInformationLineItems
9	dei:DocumentType (terseLabel)	Concept (xbrli:stringItemType)	duration		dei:DocumentType
10	dei:AmendmentFlag (terseLabel)	Concept (Boolean)	duration		dei:AmendmentFlag
11	dei:DocumentPeriodEndDate (terseLabel)	Concept (Date)	duration		dei:DocumentPeriodEndDate
12	dei:DocumentFiscalYearFocus (terseLabel)	Concept (gYear)	duration		dei:DocumentFiscalYearFocus
13	dei:DocumentFiscalPeriodFocus (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:DocumentFiscalPeriodFocus
14	dei:TradingSymbol (terseLabel)	Concept (String-Normalized)	duration		dei:TradingSymbol
15	dei:EntityRegistrantName (terseLabel)	Concept (String-Normalized)	duration		dei:EntityRegistrantName
16	dei:EntityCentralIndexKey (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:EntityCentralIndexKey
17	dei:CurrentFiscalYearEndDate (terseLabel)	Concept (gMonthDay)	duration		dei:CurrentFiscalYearEndDate
18	dei:EntityWellKnownSeasonedIssuer (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:EntityWellKnownSeasonedIssuer
19	dei:EntityCurrentReportingStatus (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:EntityCurrentReportingStatus
20	dei:EntityVoluntaryFilers (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:EntityVoluntaryFilers
21	dei:EntityFilerCategory (terseLabel)	Concept (xbrli:stringItemType)	duration		dei:EntityFilerCategory
22	dei:EntityEmergingGrowthCompany (terseLabel)	Concept (Boolean)	duration		dei:EntityEmergingGrowthCompany
23	dei:EntitySmallBusiness (terseLabel)	Concept (Boolean)	duration		dei:EntitySmallBusiness
24	dei:EntityShellCompany (terseLabel)	Concept (Boolean)	duration		dei:EntityShellCompany
25	dei:EntityCommonStockSharesOutstanding (terseLabel)	Concept (Shares)	instant		dei:EntityCommonStockSharesOutstanding
26	dei:EntityPublicFloat (terseLabel)	Concept (Monetary)	instant	credit	dei:EntityPublicFloat

Model Structure
Network	1001000 - Statement - CONSOLIDATED BALANCE SHEETS (http://www.google.com/role/ConsolidatedBalanceSheets)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Statement of Financial Position [Abstract]	Abstract	duration		us-gaap:StatementOfFinancialPositionAbstract
2	us-gaap:AssetsAbstract (terseLabel)	Abstract	duration		us-gaap:AssetsAbstract
3	us-gaap:AssetsCurrentAbstract (terseLabel)	Abstract	duration		us-gaap:AssetsCurrentAbstract
4	Cash and cash equivalents	Concept (Monetary)	instant	debit	us-gaap:CashAndCashEquivalentsAtCarryingValue
5	us-gaap:MarketableSecuritiesCurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:MarketableSecuritiesCurrent
6	us-gaap:CashCashEquivalentsAndShortTermInvestments (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:CashCashEquivalentsAndShortTermInvestments
7	us-gaap:AccountsReceivableNetCurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AccountsReceivableNetCurrent
8	us-gaap:IncomeTaxesReceivable (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:IncomeTaxesReceivable
9	us-gaap:InventoryNet (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:InventoryNet
10	us-gaap:OtherAssetsCurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OtherAssetsCurrent
11	us-gaap:AssetsCurrent (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:AssetsCurrent
12	us-gaap:OtherLongTermInvestments (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OtherLongTermInvestments
13	us-gaap:DeferredIncomeTaxAssetsNet (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredIncomeTaxAssetsNet
14	us-gaap:PropertyPlantAndEquipmentNet (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:PropertyPlantAndEquipmentNet
15	us-gaap:IntangibleAssetsNetExcludingGoodwill (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:IntangibleAssetsNetExcludingGoodwill
16	us-gaap:Goodwill (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:Goodwill
17	us-gaap:OtherAssetsNoncurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OtherAssetsNoncurrent
18	us-gaap:Assets (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:Assets
19	us-gaap:LiabilitiesAndStockholdersEquityAbstract (terseLabel)	Abstract	duration		us-gaap:LiabilitiesAndStockholdersEquityAbstract
20	us-gaap:LiabilitiesCurrentAbstract (terseLabel)	Abstract	duration		us-gaap:LiabilitiesCurrentAbstract
21	us-gaap:AccountsPayableCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AccountsPayableCurrent
22	us-gaap:EmployeeRelatedLiabilitiesCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:EmployeeRelatedLiabilitiesCurrent
23	Accrued expenses and other current liabilities	Concept (Monetary)	instant	credit	us-gaap:AccruedLiabilitiesCurrent
24	goog:AccruedRevenueShare (terseLabel)	Concept (Monetary)	instant	credit	goog:AccruedRevenueShare
25	us-gaap:ContractWithCustomerLiabilityCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractWithCustomerLiabilityCurrent
26	us-gaap:AccruedIncomeTaxesCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AccruedIncomeTaxesCurrent
27	us-gaap:LiabilitiesCurrent (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:LiabilitiesCurrent
28	Long-term debt	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtAndCapitalLeaseObligations
29	us-gaap:ContractWithCustomerLiabilityNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractWithCustomerLiabilityNoncurrent
30	us-gaap:AccruedIncomeTaxesNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AccruedIncomeTaxesNoncurrent
31	us-gaap:DeferredIncomeTaxLiabilitiesNet (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredIncomeTaxLiabilitiesNet
32	us-gaap:OtherLiabilitiesNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherLiabilitiesNoncurrent
33	us-gaap:Liabilities (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:Liabilities
34	us-gaap:CommitmentsAndContingencies (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CommitmentsAndContingencies
35	us-gaap:StockholdersEquityAbstract (terseLabel)	Abstract	duration		us-gaap:StockholdersEquityAbstract
36	us-gaap:ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue
37	us-gaap:CommonStocksIncludingAdditionalPaidInCapital (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CommonStocksIncludingAdditionalPaidInCapital
38	us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
39	us-gaap:RetainedEarningsAccumulatedDeficit (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:RetainedEarningsAccumulatedDeficit
40	Total stockholders’ equity	Concept (Monetary)	instant	credit	us-gaap:StockholdersEquity
41	us-gaap:LiabilitiesAndStockholdersEquity (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:LiabilitiesAndStockholdersEquity

Model Structure
Network	1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) (http://www.google.com/role/ConsolidatedBalanceSheetsParenthetical)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Statement of Financial Position [Abstract]	Abstract	duration		us-gaap:StatementOfFinancialPositionAbstract
2	us-gaap:StatementTable (terseLabel)	Table	duration		us-gaap:StatementTable
3	us-gaap:StatementClassOfStockAxis (terseLabel)	Axis	duration		us-gaap:StatementClassOfStockAxis
4	us-gaap:ClassOfStockDomain (terseLabel)	Member	duration		us-gaap:ClassOfStockDomain
5	us-gaap:CommonClassAMember (terseLabel)	Member	duration		us-gaap:CommonClassAMember
6	us-gaap:CommonClassBMember (terseLabel)	Member	duration		us-gaap:CommonClassBMember
7	goog:CapitalClassCMember (terseLabel)	Member	duration		goog:CapitalClassCMember
8	us-gaap:StatementLineItems (terseLabel)	LineItems	duration		us-gaap:StatementLineItems
9	us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
10	Convertible preferred stock, par value per share (in dollars per share)	Concept (Per-Share)	instant		us-gaap:PreferredStockParOrStatedValuePerShare
11	us-gaap:PreferredStockSharesAuthorized (terseLabel)	Concept (Shares)	instant		us-gaap:PreferredStockSharesAuthorized
12	us-gaap:PreferredStockSharesIssued (terseLabel)	Concept (Shares)	instant		us-gaap:PreferredStockSharesIssued
13	us-gaap:PreferredStockSharesOutstanding (terseLabel)	Concept (Shares)	instant		us-gaap:PreferredStockSharesOutstanding
14	us-gaap:CommonStockParOrStatedValuePerShare (terseLabel)	Concept (Per-Share)	instant		us-gaap:CommonStockParOrStatedValuePerShare
15	us-gaap:CommonStockSharesAuthorized (terseLabel)	Concept (Shares)	instant		us-gaap:CommonStockSharesAuthorized
16	us-gaap:CommonStockSharesIssued (terseLabel)	Concept (Shares)	instant		us-gaap:CommonStockSharesIssued
17	us-gaap:CommonStockSharesOutstanding (terseLabel)	Concept (Shares)	instant		us-gaap:CommonStockSharesOutstanding

Model Structure
Network	1002000 - Statement - CONSOLIDATED STATEMENTS OF INCOME (http://www.google.com/role/ConsolidatedStatementsOfIncome)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Statement [Abstract]	Abstract	duration		us-gaap:IncomeStatementAbstract
2	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax (verboseLabel)	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
3	us-gaap:CostsAndExpensesAbstract (terseLabel)	Abstract	duration		us-gaap:CostsAndExpensesAbstract
4	us-gaap:CostOfRevenue (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:CostOfRevenue
5	us-gaap:ResearchAndDevelopmentExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ResearchAndDevelopmentExpense
6	us-gaap:SellingAndMarketingExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:SellingAndMarketingExpense
7	us-gaap:GeneralAndAdministrativeExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:GeneralAndAdministrativeExpense
8	us-gaap:LossContingencyLossInPeriod (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:LossContingencyLossInPeriod
9	us-gaap:CostsAndExpenses (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:CostsAndExpenses
10	us-gaap:OperatingIncomeLoss (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:OperatingIncomeLoss
11	us-gaap:NonoperatingIncomeExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NonoperatingIncomeExpense
12	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
13	us-gaap:IncomeTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExpenseBenefit
14	Net income	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss
15	us-gaap:EarningsPerShareBasic (terseLabel)	Concept (Per-Share)	duration		us-gaap:EarningsPerShareBasic
16	us-gaap:EarningsPerShareDiluted (terseLabel)	Concept (Per-Share)	duration		us-gaap:EarningsPerShareDiluted

Model Structure
Network	1003000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (http://www.google.com/role/ConsolidatedStatementsOfComprehensiveIncome)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Statement of Comprehensive Income [Abstract]	Abstract	duration		us-gaap:StatementOfIncomeAndComprehensiveIncomeAbstract
2	us-gaap:NetIncomeLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss
3	us-gaap:OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract (terseLabel)	Abstract	duration		us-gaap:OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract
4	us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
5	us-gaap:OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract (terseLabel)	Abstract	duration		us-gaap:OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract
6	us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
7	us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax (negatedTerseLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
8	us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
9	us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract (terseLabel)	Abstract	duration		us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract
10	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
11	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax (negatedTerseLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
12	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
13	Other comprehensive income (loss)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossNetOfTax
14	us-gaap:ComprehensiveIncomeNetOfTax (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:ComprehensiveIncomeNetOfTax

Model Structure
Network	1003501 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (http://www.google.com/role/ConsolidatedStatementsOfComprehensiveIncomeParenthetical)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Statement of Comprehensive Income [Abstract]	Abstract	duration		us-gaap:StatementOfIncomeAndComprehensiveIncomeAbstract
2	us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax
3	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax

Model Structure
Network	1004000 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (http://www.google.com/role/ConsolidatedStatementsOfStockholdersEquity)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Statement of Stockholders' Equity [Abstract]	Abstract	duration		us-gaap:StatementOfStockholdersEquityAbstract
2	us-gaap:StatementTable (terseLabel)	Table	duration		us-gaap:StatementTable
3	us-gaap:StatementEquityComponentsAxis (terseLabel)	Axis	duration		us-gaap:StatementEquityComponentsAxis
4	us-gaap:EquityComponentDomain (terseLabel)	Member	duration		us-gaap:EquityComponentDomain
5	us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember (terseLabel)	Member	duration		us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember
6	us-gaap:AccumulatedOtherComprehensiveIncomeMember (terseLabel)	Member	duration		us-gaap:AccumulatedOtherComprehensiveIncomeMember
7	us-gaap:RetainedEarningsMember (terseLabel)	Member	duration		us-gaap:RetainedEarningsMember
8	us-gaap:StatementLineItems (terseLabel)	LineItems	duration		us-gaap:StatementLineItems
9	us-gaap:IncreaseDecreaseInStockholdersEquityRollForward (terseLabel)	Abstract	duration		us-gaap:IncreaseDecreaseInStockholdersEquityRollForward
10	us-gaap:SharesIssued (periodStartLabel)	Concept (Shares)	instant		us-gaap:SharesIssued
11	us-gaap:StockholdersEquity (periodStartLabel)	Concept (Monetary)	instant	credit	us-gaap:StockholdersEquity
12	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
13	us-gaap:StockIssuedDuringPeriodSharesNewIssues (terseLabel)	Concept (Shares)	duration		us-gaap:StockIssuedDuringPeriodSharesNewIssues
14	us-gaap:StockIssuedDuringPeriodValueNewIssues (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:StockIssuedDuringPeriodValueNewIssues
15	us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
16	goog:TaxWithholdingRelatedToVestingOfRestrictedStockUnits (negatedLabel)	Concept (Monetary)	duration	debit	goog:TaxWithholdingRelatedToVestingOfRestrictedStockUnits
17	us-gaap:StockRepurchasedAndRetiredDuringPeriodShares (negatedTerseLabel)	Concept (Shares)	duration		us-gaap:StockRepurchasedAndRetiredDuringPeriodShares
18	us-gaap:StockRepurchasedAndRetiredDuringPeriodValue (negatedTerseLabel)	Concept (Monetary)	duration	debit	us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
19	us-gaap:NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
20	us-gaap:NetIncomeLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss
21	us-gaap:OtherComprehensiveIncomeLossNetOfTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossNetOfTax
22	Ending Balance (in shares)	Concept (Shares)	instant		us-gaap:SharesIssued
23	Ending Balance	Concept (Monetary)	instant	credit	us-gaap:StockholdersEquity

Model Structure
Network	1005000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (http://www.google.com/role/ConsolidatedStatementsOfCashFlows)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Statement of Cash Flows [Abstract]	Abstract	duration		us-gaap:StatementOfCashFlowsAbstract
2	us-gaap:NetCashProvidedByUsedInOperatingActivitiesAbstract (terseLabel)	Abstract	duration		us-gaap:NetCashProvidedByUsedInOperatingActivitiesAbstract
3	us-gaap:NetIncomeLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss
4	us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract (terseLabel)	Abstract	duration		us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
5	goog:DepreciationAndImpairmentOnDispositionOfPropertyAndEquipment (terseLabel)	Concept (Monetary)	duration	debit	goog:DepreciationAndImpairmentOnDispositionOfPropertyAndEquipment
6	goog:AmortizationAndImpairmentOfIntangibleAssets (terseLabel)	Concept (Monetary)	duration	debit	goog:AmortizationAndImpairmentOfIntangibleAssets
7	us-gaap:ShareBasedCompensation (verboseLabel)	Concept (Monetary)	duration	debit	us-gaap:ShareBasedCompensation
8	us-gaap:DeferredIncomeTaxesAndTaxCredits (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DeferredIncomeTaxesAndTaxCredits
9	us-gaap:DebtAndEquitySecuritiesGainLoss (negatedTerseLabel)	Concept (Monetary)	duration	credit	us-gaap:DebtAndEquitySecuritiesGainLoss
10	us-gaap:OtherNoncashIncomeExpense (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherNoncashIncomeExpense
11	us-gaap:IncreaseDecreaseInOperatingCapitalAbstract (terseLabel)	Abstract	duration		us-gaap:IncreaseDecreaseInOperatingCapitalAbstract
12	us-gaap:IncreaseDecreaseInAccountsReceivable (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:IncreaseDecreaseInAccountsReceivable
13	us-gaap:IncreaseDecreaseInIncomeTaxes (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncreaseDecreaseInIncomeTaxes
14	us-gaap:IncreaseDecreaseInOtherOperatingAssets (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:IncreaseDecreaseInOtherOperatingAssets
15	us-gaap:IncreaseDecreaseInAccountsPayable (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncreaseDecreaseInAccountsPayable
16	us-gaap:IncreaseDecreaseInAccruedLiabilities (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncreaseDecreaseInAccruedLiabilities
17	goog:IncreaseDecreaseInAccruedRevenueShare (terseLabel)	Concept (Monetary)	duration	debit	goog:IncreaseDecreaseInAccruedRevenueShare
18	us-gaap:IncreaseDecreaseInContractWithCustomerLiability (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncreaseDecreaseInContractWithCustomerLiability
19	us-gaap:NetCashProvidedByUsedInOperatingActivities (totalLabel)	Concept (Monetary)	duration		us-gaap:NetCashProvidedByUsedInOperatingActivities
20	us-gaap:NetCashProvidedByUsedInInvestingActivitiesAbstract (terseLabel)	Abstract	duration		us-gaap:NetCashProvidedByUsedInInvestingActivitiesAbstract
21	us-gaap:PaymentsToAcquirePropertyPlantAndEquipment (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
22	us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment
23	us-gaap:PaymentsToAcquireMarketableSecurities (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquireMarketableSecurities
24	us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities
25	us-gaap:PaymentsToAcquireOtherInvestments (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquireOtherInvestments
26	us-gaap:ProceedsFromSaleAndMaturityOfOtherInvestments (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromSaleAndMaturityOfOtherInvestments
27	us-gaap:IncreaseDecreaseInCollateralHeldUnderSecuritiesLending (negatedTerseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncreaseDecreaseInCollateralHeldUnderSecuritiesLending
28	us-gaap:ProceedsFromPaymentsForSecuritiesPurchasedUnderAgreementsToResell (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromPaymentsForSecuritiesPurchasedUnderAgreementsToResell
29	goog:AcquisitionsNetOfCashAcquiredAndPurchasesOfIntangibleAndOtherAssets (negatedLabel)	Concept (Monetary)	duration	credit	goog:AcquisitionsNetOfCashAcquiredAndPurchasesOfIntangibleAndOtherAssets
30	us-gaap:ProceedsFromCollectionOfNotesReceivable (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromCollectionOfNotesReceivable
31	us-gaap:NetCashProvidedByUsedInInvestingActivities (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:NetCashProvidedByUsedInInvestingActivities
32	us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract (terseLabel)	Abstract	duration		us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract
33	goog:NetProceedsPaymentsRelatedToStockBasedAwardActivities (negatedLabel)	Concept (Monetary)	duration	credit	goog:NetProceedsPaymentsRelatedToStockBasedAwardActivities
34	us-gaap:PaymentsForRepurchaseOfCommonStock (negatedTerseLabel)	Concept (Monetary)	duration	credit	us-gaap:PaymentsForRepurchaseOfCommonStock
35	us-gaap:ProceedsFromDebtNetOfIssuanceCosts (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromDebtNetOfIssuanceCosts
36	us-gaap:RepaymentsOfDebtAndCapitalLeaseObligations (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:RepaymentsOfDebtAndCapitalLeaseObligations
37	us-gaap:ProceedsFromMinorityShareholders (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromMinorityShareholders
38	us-gaap:NetCashProvidedByUsedInFinancingActivities (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:NetCashProvidedByUsedInFinancingActivities
39	us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents
40	us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease
41	us-gaap:CashAndCashEquivalentsAtCarryingValue (periodStartLabel)	Concept (Monetary)	instant	debit	us-gaap:CashAndCashEquivalentsAtCarryingValue
42	Cash and cash equivalents at end of period	Concept (Monetary)	instant	debit	us-gaap:CashAndCashEquivalentsAtCarryingValue
43	us-gaap:SupplementalCashFlowInformationAbstract (terseLabel)	Abstract	duration		us-gaap:SupplementalCashFlowInformationAbstract
44	us-gaap:IncomeTaxesPaidNet (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeTaxesPaidNet
45	us-gaap:InterestPaidNet (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:InterestPaidNet

Model Structure
Network	2101100 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (http://www.google.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPolicies)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	us-gaap:BusinessDescriptionAndAccountingPoliciesTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:BusinessDescriptionAndAccountingPoliciesTextBlock

Model Structure
Network	2102100 - Disclosure - Revenues (http://www.google.com/role/Revenues)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Revenue from Contract with Customer [Abstract]	Abstract	duration		us-gaap:RevenueFromContractWithCustomerAbstract
2	us-gaap:RevenueFromContractWithCustomerTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:RevenueFromContractWithCustomerTextBlock

Model Structure
Network	2103100 - Disclosure - Financial Instruments (http://www.google.com/role/FinancialInstruments)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	us-gaap:FinancialInstrumentsDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:FinancialInstrumentsDisclosureTextBlock

Model Structure
Network	2104100 - Disclosure - Variable Interest Entities (VIEs) (http://www.google.com/role/VariableInterestEntitiesVies)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Organization, Consolidation and Presentation of Financial Statements [Abstract]	Abstract	duration		us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
2	us-gaap:VariableInterestEntityDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:VariableInterestEntityDisclosureTextBlock

Model Structure
Network	2106100 - Disclosure - Debt (http://www.google.com/role/Debt)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Debt Disclosure [Abstract]	Abstract	duration		us-gaap:DebtDisclosureAbstract
2	us-gaap:DebtDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:DebtDisclosureTextBlock

Model Structure
Network	2107100 - Disclosure - Supplemental Financial Statement Information (http://www.google.com/role/SupplementalFinancialStatementInformation)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	goog:BalanceSheetComponentsDisclosureAbstract (label)	Abstract	duration		goog:BalanceSheetComponentsDisclosureAbstract
2	us-gaap:SupplementalBalanceSheetDisclosuresTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:SupplementalBalanceSheetDisclosuresTextBlock

Model Structure
Network	2108100 - Disclosure - Acquisitions (http://www.google.com/role/Acquisitions)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Business Combinations [Abstract]	Abstract	duration		us-gaap:BusinessCombinationsAbstract
2	us-gaap:BusinessCombinationDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:BusinessCombinationDisclosureTextBlock

Model Structure
Network	2109100 - Disclosure - Goodwill and Other Intangible Assets (http://www.google.com/role/GoodwillAndOtherIntangibleAssets)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Goodwill and Intangible Assets Disclosure [Abstract]	Abstract	duration		us-gaap:GoodwillAndIntangibleAssetsDisclosureAbstract
2	us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock

Model Structure
Network	2111100 - Disclosure - Commitments and Contingencies (http://www.google.com/role/CommitmentsAndContingencies)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Commitments and Contingencies Disclosure [Abstract]	Abstract	duration		us-gaap:CommitmentsAndContingenciesDisclosureAbstract
2	us-gaap:CommitmentsAndContingenciesDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:CommitmentsAndContingenciesDisclosureTextBlock

Model Structure
Network	2112100 - Disclosure - Stockholders' Equity (http://www.google.com/role/StockholdersEquity)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Equity [Abstract]	Abstract	duration		us-gaap:EquityAbstract
2	us-gaap:StockholdersEquityNoteDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:StockholdersEquityNoteDisclosureTextBlock

Model Structure
Network	2113100 - Disclosure - Net Income Per Share (http://www.google.com/role/NetIncomePerShare)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Earnings Per Share [Abstract]	Abstract	duration		us-gaap:EarningsPerShareAbstract
2	us-gaap:EarningsPerShareTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:EarningsPerShareTextBlock

Model Structure
Network	2114100 - Disclosure - Compensation Plans (http://www.google.com/role/CompensationPlans)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	Abstract	duration		us-gaap:DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
2	us-gaap:CompensationAndEmployeeBenefitPlansTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:CompensationAndEmployeeBenefitPlansTextBlock

Model Structure
Network	2115100 - Disclosure - Income Taxes (http://www.google.com/role/IncomeTaxes)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration		us-gaap:IncomeTaxDisclosureAbstract
2	us-gaap:IncomeTaxDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:IncomeTaxDisclosureTextBlock

Model Structure
Network	2116100 - Disclosure - Information about Segments and Geographic Areas (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreas)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Segment Reporting [Abstract]	Abstract	duration		us-gaap:SegmentReportingAbstract
2	us-gaap:SegmentReportingDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:SegmentReportingDisclosureTextBlock

Model Structure
Network	2131100 - Schedule - Schedule II: Valuation and Qualifying Accounts (http://www.google.com/role/ScheduleIiValuationAndQualifyingAccounts)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]	Abstract	duration		srt:ValuationAndQualifyingAccountsAbstract
2	srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock

Model Structure
Network	2201201 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Policies) (http://www.google.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesPolicies)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Accounting Policies [Abstract]	Abstract	duration	us-gaap:AccountingPoliciesAbstract
2	goog:NatureOfOperationsPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	goog:NatureOfOperationsPolicyPolicyTextBlock
3	us-gaap:ConsolidationPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ConsolidationPolicyTextBlock
4	us-gaap:UseOfEstimates (terseLabel)	Concept (TextBlock)	duration	us-gaap:UseOfEstimates
5	us-gaap:RevenueFromContractWithCustomerPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:RevenueFromContractWithCustomerPolicyTextBlock
6	us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy (terseLabel)	Concept (TextBlock)	duration	us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy
7	us-gaap:CompensationRelatedCostsPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:CompensationRelatedCostsPolicyTextBlock
8	us-gaap:ConcentrationRiskCreditRisk (terseLabel)	Concept (TextBlock)	duration	us-gaap:ConcentrationRiskCreditRisk
9	us-gaap:FairValueOfFinancialInstrumentsPolicy (terseLabel)	Concept (TextBlock)	duration	us-gaap:FairValueOfFinancialInstrumentsPolicy
10	goog:CashAndCashEquivalentsAndMarketableSecuritiesPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	goog:CashAndCashEquivalentsAndMarketableSecuritiesPolicyPolicyTextBlock
11	goog:NonMarketableEquityInvestmentsPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	goog:NonMarketableEquityInvestmentsPolicyPolicyTextBlock
12	goog:ImpairmentOfMarketableAndNonMarketableSecuritiesPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	goog:ImpairmentOfMarketableAndNonMarketableSecuritiesPolicyPolicyTextBlock
13	us-gaap:ConsolidationVariableInterestEntityPolicy (terseLabel)	Concept (TextBlock)	duration	us-gaap:ConsolidationVariableInterestEntityPolicy
14	us-gaap:ReceivablesPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ReceivablesPolicyTextBlock
15	us-gaap:PropertyPlantAndEquipmentPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:PropertyPlantAndEquipmentPolicyTextBlock
16	us-gaap:InventoryPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:InventoryPolicyTextBlock
17	us-gaap:ResearchDevelopmentAndComputerSoftwarePolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ResearchDevelopmentAndComputerSoftwarePolicyTextBlock
18	us-gaap:BusinessCombinationsPolicy (terseLabel)	Concept (TextBlock)	duration	us-gaap:BusinessCombinationsPolicy
19	goog:LongLivedAssetsPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	goog:LongLivedAssetsPolicyPolicyTextBlock
20	us-gaap:IncomeTaxPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:IncomeTaxPolicyTextBlock
21	us-gaap:ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock
22	us-gaap:AdvertisingCostsPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:AdvertisingCostsPolicyTextBlock
23	us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock
24	us-gaap:PriorPeriodReclassificationAdjustmentDescription (terseLabel)	Concept (TextBlock)	duration	us-gaap:PriorPeriodReclassificationAdjustmentDescription

Model Structure
Network	2302301 - Disclosure - Revenues (Tables) (http://www.google.com/role/RevenuesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Revenue from Contract with Customer [Abstract]	Abstract	duration	us-gaap:RevenueFromContractWithCustomerAbstract
2	us-gaap:DisaggregationOfRevenueTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:DisaggregationOfRevenueTableTextBlock
3	us-gaap:RevenueFromExternalCustomersByGeographicAreasTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:RevenueFromExternalCustomersByGeographicAreasTableTextBlock

Model Structure
Network	2303301 - Disclosure - Financial Instruments (Tables) (http://www.google.com/role/FinancialInstrumentsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration	us-gaap:FairValueDisclosuresAbstract
2	us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock
3	us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock
4	us-gaap:ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
5	us-gaap:ScheduleOfOtherInvestmentsNotReadilyMarketableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfOtherInvestmentsNotReadilyMarketableTextBlock
6	us-gaap:MarketableSecuritiesTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:MarketableSecuritiesTextBlock
7	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueTableTextBlock
8	us-gaap:GainLossOnInvestmentsTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:GainLossOnInvestmentsTextBlock
9	us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
10	us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
11	us-gaap:OffsettingAssetsTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:OffsettingAssetsTableTextBlock
12	us-gaap:OffsettingLiabilitiesTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:OffsettingLiabilitiesTableTextBlock

Model Structure
Network	2306301 - Disclosure - Debt (Tables) (http://www.google.com/role/DebtTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Debt Disclosure [Abstract]	Abstract	duration	us-gaap:DebtDisclosureAbstract
2	us-gaap:ScheduleOfDebtInstrumentsTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfDebtInstrumentsTextBlock
3	us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock

Model Structure
Network	2307301 - Disclosure - Supplemental Financial Statement Information (Tables) (http://www.google.com/role/SupplementalFinancialStatementInformationTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	goog:BalanceSheetComponentsDisclosureAbstract (label)	Abstract	duration	goog:BalanceSheetComponentsDisclosureAbstract
2	us-gaap:PropertyPlantAndEquipmentTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:PropertyPlantAndEquipmentTextBlock
3	us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock
4	us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
5	us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
6	us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock

Model Structure
Network	2309301 - Disclosure - Goodwill and Other Intangible Assets (Tables) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Goodwill and Intangible Assets Disclosure [Abstract]	Abstract	duration	us-gaap:GoodwillAndIntangibleAssetsDisclosureAbstract
2	us-gaap:ScheduleOfGoodwillTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfGoodwillTextBlock
3	us-gaap:ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock
4	us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock

Model Structure
Network	2311301 - Disclosure - Commitments and Contingencies (Tables) (http://www.google.com/role/CommitmentsAndContingenciesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Commitments and Contingencies Disclosure [Abstract]	Abstract	duration		us-gaap:CommitmentsAndContingenciesDisclosureAbstract
2	us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock

Model Structure
Network	2313301 - Disclosure - Net Income Per Share (Tables) (http://www.google.com/role/NetIncomePerShareTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Earnings Per Share [Abstract]	Abstract	duration		us-gaap:EarningsPerShareAbstract
2	us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock

Model Structure
Network	2314301 - Disclosure - Compensation Plans (Tables) (http://www.google.com/role/CompensationPlansTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	Abstract	duration		us-gaap:DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
2	us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock

Model Structure
Network	2315301 - Disclosure - Income Taxes (Tables) (http://www.google.com/role/IncomeTaxesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration	us-gaap:IncomeTaxDisclosureAbstract
2	us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
3	us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
4	us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
5	us-gaap:SummaryOfIncomeTaxContingenciesTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:SummaryOfIncomeTaxContingenciesTextBlock

Model Structure
Network	2316301 - Disclosure - Information about Segments and Geographic Areas (Tables) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Segment Reporting [Abstract]	Abstract	duration	us-gaap:SegmentReportingAbstract
2	us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock
3	us-gaap:LongLivedAssetsByGeographicAreasTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:LongLivedAssetsByGeographicAreasTableTextBlock

Model Structure
Network	2401402 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details) (http://www.google.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	goog:OrganizationAndSummaryOfSignificantAccountingPoliciesTable (terseLabel)	Table	duration		goog:OrganizationAndSummaryOfSignificantAccountingPoliciesTable
3	us-gaap:StatementScenarioAxis (terseLabel)	Axis	duration		us-gaap:StatementScenarioAxis
4	us-gaap:ScenarioUnspecifiedDomain (terseLabel)	Member	duration		us-gaap:ScenarioUnspecifiedDomain
5	us-gaap:ScenarioForecastMember (terseLabel)	Member	duration		us-gaap:ScenarioForecastMember
6	us-gaap:PropertyPlantAndEquipmentByTypeAxis (terseLabel)	Axis	duration		us-gaap:PropertyPlantAndEquipmentByTypeAxis
7	us-gaap:PropertyPlantAndEquipmentTypeDomain (terseLabel)	Member	duration		us-gaap:PropertyPlantAndEquipmentTypeDomain
8	us-gaap:BuildingMember (terseLabel)	Member	duration		us-gaap:BuildingMember
9	us-gaap:TechnologyEquipmentMember (terseLabel)	Member	duration		us-gaap:TechnologyEquipmentMember
10	goog:ServerEquipmentMember (terseLabel)	Member	duration		goog:ServerEquipmentMember
11	goog:NetworkEquipmentMember (terseLabel)	Member	duration		goog:NetworkEquipmentMember
12	srt:RangeAxis (terseLabel)	Axis	duration		srt:RangeAxis
13	srt:RangeMember (terseLabel)	Member	duration		srt:RangeMember
14	srt:MinimumMember (terseLabel)	Member	duration		srt:MinimumMember
15	srt:MaximumMember (terseLabel)	Member	duration		srt:MaximumMember
16	us-gaap:AdjustmentsForNewAccountingPronouncementsAxis (terseLabel)	Axis	duration		us-gaap:AdjustmentsForNewAccountingPronouncementsAxis
17	us-gaap:TypeOfAdoptionMember (terseLabel)	Member	duration		us-gaap:TypeOfAdoptionMember
18	us-gaap:AccountingStandardsUpdate201602Member (terseLabel)	Member	duration		us-gaap:AccountingStandardsUpdate201602Member
19	us-gaap:AccountingStandardsUpdate201601Member (terseLabel)	Member	duration		us-gaap:AccountingStandardsUpdate201601Member
20	us-gaap:AccountingStandardsUpdate201616Member (terseLabel)	Member	duration		us-gaap:AccountingStandardsUpdate201616Member
21	us-gaap:StatementEquityComponentsAxis (terseLabel)	Axis	duration		us-gaap:StatementEquityComponentsAxis
22	us-gaap:EquityComponentDomain (terseLabel)	Member	duration		us-gaap:EquityComponentDomain
23	us-gaap:RetainedEarningsMember (terseLabel)	Member	duration		us-gaap:RetainedEarningsMember
24	goog:OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems (terseLabel)	LineItems	duration		goog:OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems
25	us-gaap:PropertyPlantAndEquipmentUsefulLife (terseLabel)	Concept (Duration)	duration		us-gaap:PropertyPlantAndEquipmentUsefulLife
26	us-gaap:GoodwillImpairmentLoss (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:GoodwillImpairmentLoss
27	Intangible assets, estimated useful lives	Concept (Duration)	duration		us-gaap:FiniteLivedIntangibleAssetUsefulLife
28	us-gaap:MarketingAndAdvertisingExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:MarketingAndAdvertisingExpense
29	us-gaap:OperatingLeaseRightOfUseAsset (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLeaseRightOfUseAsset
30	us-gaap:OperatingLeaseLiability (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeaseLiability
31	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
32	Reclassification of unrecognized income tax effects	Concept (Monetary)	instant	credit	us-gaap:RetainedEarningsAccumulatedDeficit

Model Structure
Network	2402402 - Disclosure - Revenues (Revenue by Segment) (Details) (http://www.google.com/role/RevenuesRevenueBySegmentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Revenue from Contract with Customer [Abstract]	Abstract	duration		us-gaap:RevenueFromContractWithCustomerAbstract
2	us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable (terseLabel)	Table	duration		us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable
3	us-gaap:StatementBusinessSegmentsAxis (terseLabel)	Axis	duration		us-gaap:StatementBusinessSegmentsAxis
4	us-gaap:SegmentDomain (terseLabel)	Member	duration		us-gaap:SegmentDomain
5	goog:GoogleInc.Member (terseLabel)	Member	duration		goog:GoogleInc.Member
6	us-gaap:AllOtherSegmentsMember (terseLabel)	Member	duration		us-gaap:AllOtherSegmentsMember
7	srt:ProductOrServiceAxis (terseLabel)	Axis	duration		srt:ProductOrServiceAxis
8	srt:ProductsAndServicesDomain (terseLabel)	Member	duration		srt:ProductsAndServicesDomain
9	goog:GooglePropertiesMember (terseLabel)	Member	duration		goog:GooglePropertiesMember
10	goog:GoogleNetworkMembersPropertiesMember (terseLabel)	Member	duration		goog:GoogleNetworkMembersPropertiesMember
11	goog:AdvertisingRevenueMember (terseLabel)	Member	duration		goog:AdvertisingRevenueMember
12	goog:OtherRevenuesMember (terseLabel)	Member	duration		goog:OtherRevenuesMember
13	Income Statement Location [Axis]	Axis	duration		us-gaap:IncomeStatementLocationAxis
14	Income Statement Location [Domain]	Member	duration		us-gaap:IncomeStatementLocationDomain
15	us-gaap:SalesMember (verboseLabel)	Member	duration		us-gaap:SalesMember
16	us-gaap:SegmentReportingInformationLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingInformationLineItems
17	Revenues	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
18	us-gaap:GainLossOnOilAndGasHedgingActivity (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:GainLossOnOilAndGasHedgingActivity

Model Structure
Network	2402403 - Disclosure - Revenues (Revenue by Geographic Location) (Details) (http://www.google.com/role/RevenuesRevenueByGeographicLocationDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Revenue from Contract with Customer [Abstract]	Abstract	duration		us-gaap:RevenueFromContractWithCustomerAbstract
2	us-gaap:ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable (terseLabel)	Table	duration		us-gaap:ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable
3	us-gaap:ConcentrationRiskByTypeAxis (terseLabel)	Axis	duration		us-gaap:ConcentrationRiskByTypeAxis
4	us-gaap:ConcentrationRiskTypeDomain (terseLabel)	Member	duration		us-gaap:ConcentrationRiskTypeDomain
5	us-gaap:GeographicConcentrationRiskMember (terseLabel)	Member	duration		us-gaap:GeographicConcentrationRiskMember
6	us-gaap:ConcentrationRiskByBenchmarkAxis (terseLabel)	Axis	duration		us-gaap:ConcentrationRiskByBenchmarkAxis
7	us-gaap:ConcentrationRiskBenchmarkDomain (terseLabel)	Member	duration		us-gaap:ConcentrationRiskBenchmarkDomain
8	us-gaap:SalesRevenueNetMember (terseLabel)	Member	duration		us-gaap:SalesRevenueNetMember
9	srt:StatementGeographicalAxis (terseLabel)	Axis	duration		srt:StatementGeographicalAxis
10	srt:SegmentGeographicalDomain (terseLabel)	Member	duration		srt:SegmentGeographicalDomain
11	country:US (terseLabel)	Member	duration		country:US
12	us-gaap:EMEAMember (terseLabel)	Member	duration		us-gaap:EMEAMember
13	srt:AsiaPacificMember (terseLabel)	Member	duration		srt:AsiaPacificMember
14	goog:AmericasExcludingUnitedStatesMember (terseLabel)	Member	duration		goog:AmericasExcludingUnitedStatesMember
15	us-gaap:RevenuesFromExternalCustomersAndLongLivedAssetsLineItems (terseLabel)	LineItems	duration		us-gaap:RevenuesFromExternalCustomersAndLongLivedAssetsLineItems
16	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax (verboseLabel)	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
17	us-gaap:ConcentrationRiskPercentage1 (terseLabel)	Concept (Percent)	duration		us-gaap:ConcentrationRiskPercentage1

Model Structure
Network	2402404 - Disclosure - Revenues (Narrative) (Details) (http://www.google.com/role/RevenuesNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Revenue from Contract with Customer [Abstract]	Abstract	duration		us-gaap:RevenueFromContractWithCustomerAbstract
2	us-gaap:ContractWithCustomerLiabilityRevenueRecognized (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:ContractWithCustomerLiabilityRevenueRecognized

Model Structure
Network	2403402 - Disclosure - Financial Instruments (Debt Securities) (Details) (http://www.google.com/role/FinancialInstrumentsDebtSecuritiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	us-gaap:ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable (terseLabel)	Table	duration		us-gaap:ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable
3	us-gaap:FairValueByFairValueHierarchyLevelAxis (terseLabel)	Axis	duration		us-gaap:FairValueByFairValueHierarchyLevelAxis
4	us-gaap:FairValueMeasurementsFairValueHierarchyDomain (terseLabel)	Member	duration		us-gaap:FairValueMeasurementsFairValueHierarchyDomain
5	us-gaap:FairValueInputsLevel2Member (terseLabel)	Member	duration		us-gaap:FairValueInputsLevel2Member
6	us-gaap:FairValueInputsLevel3Member (terseLabel)	Member	duration		us-gaap:FairValueInputsLevel3Member
7	us-gaap:FinancialInstrumentAxis (terseLabel)	Axis	duration		us-gaap:FinancialInstrumentAxis
8	us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain (terseLabel)	Member	duration		us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain
9	us-gaap:BankTimeDepositsMember (terseLabel)	Member	duration		us-gaap:BankTimeDepositsMember
10	goog:GovernmentBondsMember (terseLabel)	Member	duration		goog:GovernmentBondsMember
11	us-gaap:CorporateDebtSecuritiesMember (terseLabel)	Member	duration		us-gaap:CorporateDebtSecuritiesMember
12	goog:MortgageBackedandAssetBackedSecuritiesMember (terseLabel)	Member	duration		goog:MortgageBackedandAssetBackedSecuritiesMember
13	goog:MarketableDebtSecuritiesMember (verboseLabel)	Member	duration		goog:MarketableDebtSecuritiesMember
14	goog:NonMarketableDebtSecuritiesMember (terseLabel)	Member	duration		goog:NonMarketableDebtSecuritiesMember
15	us-gaap:DebtSecuritiesMember (terseLabel)	Member	duration		us-gaap:DebtSecuritiesMember
16	us-gaap:ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems (terseLabel)	LineItems	duration		us-gaap:ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems
17	us-gaap:AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract (terseLabel)	Abstract	duration		us-gaap:AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract
18	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (totalLabel)	Concept (Monetary)	instant	debit	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost
19	us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
20	us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax (negatedLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
21	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (terseLabel)	Concept (Monetary)	instant	debit	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities
22	us-gaap:CashAndCashEquivalentsFairValueDisclosure (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:CashAndCashEquivalentsFairValueDisclosure
23	Marketable Securities	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtSecurities
24	us-gaap:InvestmentsFairValueDisclosure (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:InvestmentsFairValueDisclosure

Model Structure
Network	2403403 - Disclosure - Financial Instruments (Narrative) (Details) (http://www.google.com/role/FinancialInstrumentsNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	goog:FinancialInstrumentsAndFairValueTable (terseLabel)	Table	duration		goog:FinancialInstrumentsAndFairValueTable
3	us-gaap:ValuationTechniqueAxis (terseLabel)	Axis	duration		us-gaap:ValuationTechniqueAxis
4	us-gaap:ValuationTechniqueDomain (terseLabel)	Member	duration		us-gaap:ValuationTechniqueDomain
5	us-gaap:MarketApproachValuationTechniqueMember (terseLabel)	Member	duration		us-gaap:MarketApproachValuationTechniqueMember
6	us-gaap:StatementEquityComponentsAxis (terseLabel)	Axis	duration		us-gaap:StatementEquityComponentsAxis
7	us-gaap:EquityComponentDomain (terseLabel)	Member	duration		us-gaap:EquityComponentDomain
8	Accumulated other comprehensive income (loss)	Member	duration		us-gaap:AccumulatedOtherComprehensiveIncomeMember
9	us-gaap:RetainedEarningsMember (terseLabel)	Member	duration		us-gaap:RetainedEarningsMember
10	us-gaap:AdjustmentsForNewAccountingPronouncementsAxis (terseLabel)	Axis	duration		us-gaap:AdjustmentsForNewAccountingPronouncementsAxis
11	us-gaap:TypeOfAdoptionMember (terseLabel)	Member	duration		us-gaap:TypeOfAdoptionMember
12	us-gaap:AccountingStandardsUpdate201601Member (terseLabel)	Member	duration		us-gaap:AccountingStandardsUpdate201601Member
13	us-gaap:HedgingDesignationAxis (terseLabel)	Axis	duration		us-gaap:HedgingDesignationAxis
14	us-gaap:HedgingDesignationDomain (terseLabel)	Member	duration		us-gaap:HedgingDesignationDomain
15	us-gaap:NondesignatedMember (terseLabel)	Member	duration		us-gaap:NondesignatedMember
16	us-gaap:DerivativeInstrumentsGainLossByHedgingRelationshipAxis (terseLabel)	Axis	duration		us-gaap:DerivativeInstrumentsGainLossByHedgingRelationshipAxis
17	us-gaap:HedgingRelationshipDomain (terseLabel)	Member	duration		us-gaap:HedgingRelationshipDomain
18	Cash Flow Hedging Relationship	Member	duration		us-gaap:CashFlowHedgingMember
19	us-gaap:FairValueHedgingMember (terseLabel)	Member	duration		us-gaap:FairValueHedgingMember
20	Net Investment Hedges	Member	duration		us-gaap:NetInvestmentHedgingMember
21	us-gaap:DerivativeInstrumentRiskAxis (terseLabel)	Axis	duration		us-gaap:DerivativeInstrumentRiskAxis
22	us-gaap:DerivativeContractTypeDomain (terseLabel)	Member	duration		us-gaap:DerivativeContractTypeDomain
23	us-gaap:ForeignExchangeContractMember (terseLabel)	Member	duration		us-gaap:ForeignExchangeContractMember
24	goog:FinancialInstrumentsAndFairValueLineItems (terseLabel)	LineItems	duration		goog:FinancialInstrumentsAndFairValueLineItems
25	us-gaap:DebtSecuritiesAvailableForSaleRealizedGain (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:DebtSecuritiesAvailableForSaleRealizedGain
26	us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss
27	us-gaap:ImpairmentOfInvestments (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ImpairmentOfInvestments
28	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
29	us-gaap:CostMethodInvestments (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:CostMethodInvestments
30	us-gaap:CostMethodInvestmentsFairValueDisclosure (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:CostMethodInvestmentsFairValueDisclosure
31	Fair value of non-marketable equity securities	Concept (Monetary)	instant	debit	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
32	Unrealized gain on equity securities	Concept (Monetary)	instant	credit	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount
33	Net unrealized gain on non-marketable equity securities	Concept (Monetary)	duration	credit	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount
34	us-gaap:EquityMethodInvestments (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:EquityMethodInvestments
35	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (terseLabel)	Concept (Monetary)	instant	credit	goog:CashCollateralReceivedFromDerivativeFinancialInstruments
36	invest:DerivativeNotionalAmount (terseLabel)	Concept (Monetary)	instant		invest:DerivativeNotionalAmount
37	us-gaap:DerivativeRemainingMaturity1 (terseLabel)	Concept (Duration)	duration		us-gaap:DerivativeRemainingMaturity1
38	goog:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax (terseLabel)	Concept (Monetary)	instant	credit	goog:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax
39	us-gaap:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months

Model Structure
Network	2403404 - Disclosure - Financial Instruments (Contractual Maturity Date of Marketable Debt Securities) (Details) (http://www.google.com/role/FinancialInstrumentsContractualMaturityDateOfMarketableDebtSecuritiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
3	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
4	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
5	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
6	us-gaap:AvailableForSaleSecuritiesDebtSecurities (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtSecurities

Model Structure
Network	2403405 - Disclosure - Financial Instruments (Gross Unrealized Losses and Fair Values for Investments in Unrealized Loss Position) (Details) (http://www.google.com/role/FinancialInstrumentsGrossUnrealizedLossesAndFairValuesForInvestmentsInUnrealizedLossPositionDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	goog:InvestmentsUnrealizedLossPositionTable (terseLabel)	Table	duration		goog:InvestmentsUnrealizedLossPositionTable
3	us-gaap:FinancialInstrumentAxis (terseLabel)	Axis	duration		us-gaap:FinancialInstrumentAxis
4	us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain (terseLabel)	Member	duration		us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain
5	goog:GovernmentBondsMember (terseLabel)	Member	duration		goog:GovernmentBondsMember
6	us-gaap:CorporateDebtSecuritiesMember (terseLabel)	Member	duration		us-gaap:CorporateDebtSecuritiesMember
7	goog:MortgageBackedandAssetBackedSecuritiesMember (terseLabel)	Member	duration		goog:MortgageBackedandAssetBackedSecuritiesMember
8	goog:InvestmentsUnrealizedLossPositionLineItems (terseLabel)	LineItems	duration		goog:InvestmentsUnrealizedLossPositionLineItems
9	us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
10	us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss (negatedLabel)	Concept (Monetary)	instant	debit	us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
11	us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
12	us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss (negatedLabel)	Concept (Monetary)	instant	debit	us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
13	us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition
14	us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss (negatedTotalLabel)	Concept (Monetary)	instant	debit	us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss

Model Structure
Network	2403406 - Disclosure - Financial Instruments (Non-Marketable Debt Securities) (Details) (http://www.google.com/role/FinancialInstrumentsNonMarketableDebtSecuritiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable (terseLabel)	Table	duration		us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable
3	us-gaap:FairValueByFairValueHierarchyLevelAxis (terseLabel)	Axis	duration		us-gaap:FairValueByFairValueHierarchyLevelAxis
4	us-gaap:FairValueMeasurementsFairValueHierarchyDomain (terseLabel)	Member	duration		us-gaap:FairValueMeasurementsFairValueHierarchyDomain
5	us-gaap:FairValueInputsLevel3Member (terseLabel)	Member	duration		us-gaap:FairValueInputsLevel3Member
6	us-gaap:FairValueByAssetClassAxis (terseLabel)	Axis	duration		us-gaap:FairValueByAssetClassAxis
7	us-gaap:FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain (terseLabel)	Member	duration		us-gaap:FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain
8	Non-Marketable Debt Securities	Member	duration		goog:NonMarketableDebtSecuritiesMember
9	us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems (terseLabel)	LineItems	duration		us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
10	us-gaap:FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward (terseLabel)	Abstract	duration		us-gaap:FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward
11	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue (periodStartLabel)	Concept (Monetary)	instant	debit	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
12	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityGainLossIncludedInOtherComprehensiveIncomeLossAbstract (terseLabel)	Abstract	duration		us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityGainLossIncludedInOtherComprehensiveIncomeLossAbstract
13	goog:OtherInvestmentNotReadilyMarketableRealizedGainLossIncludedInEarnings (verboseLabel)	Concept (Monetary)	duration	credit	goog:OtherInvestmentNotReadilyMarketableRealizedGainLossIncludedInEarnings
14	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss (verboseLabel)	Concept (Monetary)	duration	credit	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
15	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases (verboseLabel)	Concept (Monetary)	duration	debit	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
16	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
17	goog:OtherInvestmentNotReadilyMarketableSettlementsDuringPeriod (negatedLabel)	Concept (Monetary)	duration	credit	goog:OtherInvestmentNotReadilyMarketableSettlementsDuringPeriod
18	Ending balance	Concept (Monetary)	instant	debit	us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
19	goog:DebtSecuritiesUnrealizedGainLossOnExtinguishmentOfSecurities (terseLabel)	Concept (Monetary)	duration	credit	goog:DebtSecuritiesUnrealizedGainLossOnExtinguishmentOfSecurities

Model Structure
Network	2403407 - Disclosure - Financial Instruments (Marketable Equity Securities) (Details) (http://www.google.com/role/FinancialInstrumentsMarketableEquitySecuritiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable (terseLabel)	Table	duration		us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable
3	us-gaap:FinancialInstrumentAxis (terseLabel)	Axis	duration		us-gaap:FinancialInstrumentAxis
4	us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain (terseLabel)	Member	duration		us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain
5	goog:MoneyMarketAndOtherFundsMember (terseLabel)	Member	duration		goog:MoneyMarketAndOtherFundsMember
6	goog:MarketableEquitySecuritiesMember (terseLabel)	Member	duration		goog:MarketableEquitySecuritiesMember
7	us-gaap:MutualFundMember (terseLabel)	Member	duration		us-gaap:MutualFundMember
8	us-gaap:FairValueByFairValueHierarchyLevelAxis (terseLabel)	Axis	duration		us-gaap:FairValueByFairValueHierarchyLevelAxis
9	us-gaap:FairValueMeasurementsFairValueHierarchyDomain (terseLabel)	Member	duration		us-gaap:FairValueMeasurementsFairValueHierarchyDomain
10	us-gaap:FairValueInputsLevel1Member (terseLabel)	Member	duration		us-gaap:FairValueInputsLevel1Member
11	us-gaap:FairValueInputsLevel2Member (terseLabel)	Member	duration		us-gaap:FairValueInputsLevel2Member
12	us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems (terseLabel)	LineItems	duration		us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
13	Cash and Cash Equivalents	Concept (Monetary)	instant	debit	us-gaap:CashAndCashEquivalentsFairValueDisclosure
14	us-gaap:EquitySecuritiesFvNi (verboseLabel)	Concept (Monetary)	instant	debit	us-gaap:EquitySecuritiesFvNi

Model Structure
Network	2403408 - Disclosure - Financial Instruments (Measurement Alternative Investments) (Details) (http://www.google.com/role/FinancialInstrumentsMeasurementAlternativeInvestmentsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleTable (terseLabel)	Table	duration		us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleTable
3	us-gaap:ExtinguishmentOfDebtAxis (terseLabel)	Axis	duration		us-gaap:ExtinguishmentOfDebtAxis
4	us-gaap:ExtinguishmentOfDebtTypeDomain (terseLabel)	Member	duration		us-gaap:ExtinguishmentOfDebtTypeDomain
5	goog:EquitySecuritiesOriginationUponExtinguishmentOfDebtSecuritiesMember (terseLabel)	Member	duration		goog:EquitySecuritiesOriginationUponExtinguishmentOfDebtSecuritiesMember
6	us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems (terseLabel)	LineItems	duration		us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
7	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossCumulativeAmountAbstract (terseLabel)	Abstract	duration		us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossCumulativeAmountAbstract
8	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount (verboseLabel)	Concept (Monetary)	duration	credit	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount
9	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount (negatedTerseLabel)	Concept (Monetary)	duration	debit	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount
10	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount (totalLabel)	Concept (Monetary)	duration	credit	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount
11	goog:EquitySecuritieswithoutReadilyDeterminableFairValueCostBasis (terseLabel)	Concept (Monetary)	instant	debit	goog:EquitySecuritieswithoutReadilyDeterminableFairValueCostBasis
12	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount
13	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount
14	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
15	us-gaap:EquitySecuritiesFvNiGainLossAlternativeAbstract (terseLabel)	Abstract	duration		us-gaap:EquitySecuritiesFvNiGainLossAlternativeAbstract
16	us-gaap:EquitySecuritiesFvNiRealizedGainLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:EquitySecuritiesFvNiRealizedGainLoss
17	us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss
18	us-gaap:EquitySecuritiesFvNiGainLoss (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:EquitySecuritiesFvNiGainLoss

Model Structure
Network	2403409 - Disclosure - Financial Instruments (Fair Values of Outstanding Derivative Instruments) (Details) (http://www.google.com/role/FinancialInstrumentsFairValuesOfOutstandingDerivativeInstrumentsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	us-gaap:FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable (terseLabel)	Table	duration		us-gaap:FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable
3	us-gaap:HedgingDesignationAxis (terseLabel)	Axis	duration		us-gaap:HedgingDesignationAxis
4	us-gaap:HedgingDesignationDomain (terseLabel)	Member	duration		us-gaap:HedgingDesignationDomain
5	us-gaap:DesignatedAsHedgingInstrumentMember (terseLabel)	Member	duration		us-gaap:DesignatedAsHedgingInstrumentMember
6	us-gaap:NondesignatedMember (terseLabel)	Member	duration		us-gaap:NondesignatedMember
7	us-gaap:FairValueByFairValueHierarchyLevelAxis (terseLabel)	Axis	duration		us-gaap:FairValueByFairValueHierarchyLevelAxis
8	us-gaap:FairValueMeasurementsFairValueHierarchyDomain (terseLabel)	Member	duration		us-gaap:FairValueMeasurementsFairValueHierarchyDomain
9	us-gaap:FairValueInputsLevel2Member (terseLabel)	Member	duration		us-gaap:FairValueInputsLevel2Member
10	us-gaap:InvestmentTypeAxis (terseLabel)	Axis	duration		us-gaap:InvestmentTypeAxis
11	us-gaap:InvestmentTypeCategorizationMember (terseLabel)	Member	duration		us-gaap:InvestmentTypeCategorizationMember
12	us-gaap:ForeignExchangeContractMember (terseLabel)	Member	duration		us-gaap:ForeignExchangeContractMember
13	us-gaap:BalanceSheetLocationAxis (terseLabel)	Axis	duration		us-gaap:BalanceSheetLocationAxis
14	us-gaap:BalanceSheetLocationDomain (terseLabel)	Member	duration		us-gaap:BalanceSheetLocationDomain
15	us-gaap:OtherAssetsMember (terseLabel)	Member	duration		us-gaap:OtherAssetsMember
16	goog:AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember (terseLabel)	Member	duration		goog:AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember
17	us-gaap:DerivativesFairValueLineItems (terseLabel)	LineItems	duration		us-gaap:DerivativesFairValueLineItems
18	us-gaap:DerivativeAssetsAbstract (terseLabel)	Abstract	duration		us-gaap:DerivativeAssetsAbstract
19	us-gaap:DerivativeFairValueOfDerivativeAsset (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DerivativeFairValueOfDerivativeAsset
20	us-gaap:DerivativeLiabilitiesAbstract (terseLabel)	Abstract	duration		us-gaap:DerivativeLiabilitiesAbstract
21	us-gaap:DerivativeFairValueOfDerivativeLiability (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:DerivativeFairValueOfDerivativeLiability

Model Structure
Network	2403410 - Disclosure - Financial Instruments (Effect of Derivative Instruments on Income and Accumulated Other Comprehensive Income) (Details) (http://www.google.com/role/FinancialInstrumentsEffectOfDerivativeInstrumentsOnIncomeAndAccumulatedOtherComprehensiveIncomeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	us-gaap:DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable (terseLabel)	Table	duration		us-gaap:DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable
3	us-gaap:HedgingDesignationAxis (terseLabel)	Axis	duration		us-gaap:HedgingDesignationAxis
4	us-gaap:HedgingDesignationDomain (terseLabel)	Member	duration		us-gaap:HedgingDesignationDomain
5	us-gaap:NondesignatedMember (terseLabel)	Member	duration		us-gaap:NondesignatedMember
6	us-gaap:DerivativeInstrumentRiskAxis (terseLabel)	Axis	duration		us-gaap:DerivativeInstrumentRiskAxis
7	us-gaap:DerivativeContractTypeDomain (terseLabel)	Member	duration		us-gaap:DerivativeContractTypeDomain
8	us-gaap:ForeignExchangeContractMember (terseLabel)	Member	duration		us-gaap:ForeignExchangeContractMember
9	us-gaap:DerivativeInstrumentsGainLossByHedgingRelationshipAxis (terseLabel)	Axis	duration		us-gaap:DerivativeInstrumentsGainLossByHedgingRelationshipAxis
10	us-gaap:HedgingRelationshipDomain (terseLabel)	Member	duration		us-gaap:HedgingRelationshipDomain
11	us-gaap:CashFlowHedgingMember (verboseLabel)	Member	duration		us-gaap:CashFlowHedgingMember
12	us-gaap:NetInvestmentHedgingMember (verboseLabel)	Member	duration		us-gaap:NetInvestmentHedgingMember
13	us-gaap:FairValueHedgingMember (terseLabel)	Member	duration		us-gaap:FairValueHedgingMember
14	us-gaap:IncomeStatementLocationAxis (verboseLabel)	Axis	duration		us-gaap:IncomeStatementLocationAxis
15	us-gaap:IncomeStatementLocationDomain (verboseLabel)	Member	duration		us-gaap:IncomeStatementLocationDomain
16	us-gaap:SalesMember (verboseLabel)	Member	duration		us-gaap:SalesMember
17	us-gaap:NonoperatingIncomeExpenseMember (verboseLabel)	Member	duration		us-gaap:NonoperatingIncomeExpenseMember
18	us-gaap:DerivativeInstrumentsGainLossLineItems (terseLabel)	LineItems	duration		us-gaap:DerivativeInstrumentsGainLossLineItems
19	us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPeriodIncreaseDecreaseAbstract (terseLabel)	Abstract	duration		us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPeriodIncreaseDecreaseAbstract
20	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
21	us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAndTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAndTax
22	us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract (terseLabel)	Abstract	duration		us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract
23	us-gaap:OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax
24	us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
25	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax (verboseLabel)	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
26	us-gaap:NonoperatingIncomeExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NonoperatingIncomeExpense
27	us-gaap:EffectOfCashFlowHedgesOnResultsOfOperationsAbstract (terseLabel)	Abstract	duration		us-gaap:EffectOfCashFlowHedgesOnResultsOfOperationsAbstract
28	goog:CashFlowHedgeForeignExchangeContractsAbstract (terseLabel)	Abstract	duration		goog:CashFlowHedgeForeignExchangeContractsAbstract
29	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
30	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (terseLabel)	Concept (Monetary)	duration	credit	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet
31	us-gaap:GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNet (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNet
32	us-gaap:EffectOfFairValueHedgesOnResultsOfOperationsAbstract (terseLabel)	Abstract	duration		us-gaap:EffectOfFairValueHedgesOnResultsOfOperationsAbstract
33	goog:FairValueHedgeForeignExchangeContractsAbstract (terseLabel)	Abstract	duration		goog:FairValueHedgeForeignExchangeContractsAbstract
34	us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1 (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1
35	us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1 (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1
36	us-gaap:GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet
37	us-gaap:EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract (terseLabel)	Abstract	duration		us-gaap:EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract
38	goog:NetInvestmentHedgeForeignExchangeContractsAbstract (terseLabel)	Abstract	duration		goog:NetInvestmentHedgeForeignExchangeContractsAbstract
39	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (terseLabel)	Concept (Monetary)	duration	credit	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet
40	goog:EffectofDerivativesNotDesignatedasCashFlowHedgesonResultsofOperationsAbstract (terseLabel)	Abstract	duration		goog:EffectofDerivativesNotDesignatedasCashFlowHedgesonResultsofOperationsAbstract
41	goog:DerivativesNotDesignatedasCashFlowHedgesForeignExchangeContractsAbstract (terseLabel)	Abstract	duration		goog:DerivativesNotDesignatedasCashFlowHedgesForeignExchangeContractsAbstract
42	us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
43	us-gaap:DerivativeGainLossOnDerivativeNet (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:DerivativeGainLossOnDerivativeNet

Model Structure
Network	2403412 - Disclosure - Financial Instruments (Offsetting of Financial Assets and Financial Liabilities) (Details) (http://www.google.com/role/FinancialInstrumentsOffsettingOfFinancialAssetsAndFinancialLiabilitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Fair Value Disclosures [Abstract]	Abstract	duration		us-gaap:FairValueDisclosuresAbstract
2	Offsetting of Assets	Abstract	duration		us-gaap:DerivativeAssetsAbstract
3	Gross Amounts of Recognized Assets	Concept (Monetary)	instant	debit	us-gaap:DerivativeFairValueOfDerivativeAsset
4	us-gaap:DerivativeAssetFairValueGrossLiability (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:DerivativeAssetFairValueGrossLiability
5	us-gaap:DerivativeAssets (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:DerivativeAssets
6	us-gaap:DerivativeAssetNotOffsetPolicyElectionDeduction (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:DerivativeAssetNotOffsetPolicyElectionDeduction
7	us-gaap:DerivativeCollateralObligationToReturnCash (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:DerivativeCollateralObligationToReturnCash
8	us-gaap:DerivativeCollateralObligationToReturnSecurities (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:DerivativeCollateralObligationToReturnSecurities
9	us-gaap:DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
10	us-gaap:OffsettingDerivativeLiabilitiesAbstract (terseLabel)	Abstract	duration		us-gaap:OffsettingDerivativeLiabilitiesAbstract
11	Gross Amounts of Recognized Liabilities	Concept (Monetary)	instant	credit	us-gaap:DerivativeFairValueOfDerivativeLiability
12	us-gaap:DerivativeLiabilityFairValueGrossAsset (negatedTerseLabel)	Concept (Monetary)	instant	debit	us-gaap:DerivativeLiabilityFairValueGrossAsset
13	us-gaap:DerivativeLiabilities (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:DerivativeLiabilities
14	us-gaap:DerivativeLiabilityNotOffsetPolicyElectionDeduction (negatedTerseLabel)	Concept (Monetary)	instant	debit	us-gaap:DerivativeLiabilityNotOffsetPolicyElectionDeduction
15	us-gaap:DerivativeCollateralRightToReclaimCash (negatedLabel)	Concept (Monetary)	instant	debit	us-gaap:DerivativeCollateralRightToReclaimCash
16	us-gaap:DerivativeCollateralRightToReclaimSecurities (negatedTerseLabel)	Concept (Monetary)	instant	debit	us-gaap:DerivativeCollateralRightToReclaimSecurities
17	us-gaap:DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection

Model Structure
Network	2404401 - Disclosure - Variable Interest Entities (VIEs) (Narrative) (Details) (http://www.google.com/role/VariableInterestEntitiesViesNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Organization, Consolidation and Presentation of Financial Statements [Abstract]	Abstract	duration		us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
2	us-gaap:ScheduleOfResearchAndDevelopmentArrangementContractToPerformForOthersTable (terseLabel)	Table	duration		us-gaap:ScheduleOfResearchAndDevelopmentArrangementContractToPerformForOthersTable
3	us-gaap:StatementScenarioAxis (terseLabel)	Axis	duration		us-gaap:StatementScenarioAxis
4	us-gaap:ScenarioUnspecifiedDomain (terseLabel)	Member	duration		us-gaap:ScenarioUnspecifiedDomain
5	us-gaap:ScenarioForecastMember (terseLabel)	Member	duration		us-gaap:ScenarioForecastMember
6	us-gaap:RegulatoryAssetAxis (terseLabel)	Axis	duration		us-gaap:RegulatoryAssetAxis
7	us-gaap:RegulatoryAssetDomain (terseLabel)	Member	duration		us-gaap:RegulatoryAssetDomain
8	us-gaap:RenewableEnergyProgramMember (terseLabel)	Member	duration		us-gaap:RenewableEnergyProgramMember
9	us-gaap:OtherCommitmentsAxis (terseLabel)	Axis	duration		us-gaap:OtherCommitmentsAxis
10	us-gaap:OtherCommitmentsDomain (terseLabel)	Member	duration		us-gaap:OtherCommitmentsDomain
11	us-gaap:ResearchAndDevelopmentArrangementMember (terseLabel)	Member	duration		us-gaap:ResearchAndDevelopmentArrangementMember
12	goog:CommitmenttoInvestMember (terseLabel)	Member	duration		goog:CommitmenttoInvestMember
13	dei:LegalEntityAxis (terseLabel)	Axis	duration		dei:LegalEntityAxis
14	dei:EntityDomain (terseLabel)	Member	duration		dei:EntityDomain
15	goog:AbbVieIncMember (terseLabel)	Member	duration		goog:AbbVieIncMember
16	goog:CalicoMember (terseLabel)	Member	duration		goog:CalicoMember
17	us-gaap:VariableInterestEntitiesByClassificationOfEntityAxis (terseLabel)	Axis	duration		us-gaap:VariableInterestEntitiesByClassificationOfEntityAxis
18	us-gaap:ClassificationOfVariableInterestEntityDomain (terseLabel)	Member	duration		us-gaap:ClassificationOfVariableInterestEntityDomain
19	us-gaap:VariableInterestEntityPrimaryBeneficiaryMember (terseLabel)	Member	duration		us-gaap:VariableInterestEntityPrimaryBeneficiaryMember
20	us-gaap:VariableInterestEntityNotPrimaryBeneficiaryAggregatedDisclosureMember (terseLabel)	Member	duration		us-gaap:VariableInterestEntityNotPrimaryBeneficiaryAggregatedDisclosureMember
21	srt:OwnershipAxis (terseLabel)	Axis	duration		srt:OwnershipAxis
22	srt:OwnershipDomain (terseLabel)	Member	duration		srt:OwnershipDomain
23	goog:VerilyMember (terseLabel)	Member	duration		goog:VerilyMember
24	us-gaap:ResearchAndDevelopmentArrangementContractToPerformForOthersLineItems (terseLabel)	LineItems	duration		us-gaap:ResearchAndDevelopmentArrangementContractToPerformForOthersLineItems
25	us-gaap:VariableInterestEntityConsolidatedAssetsPledged (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:VariableInterestEntityConsolidatedAssetsPledged
26	us-gaap:VariableInterestEntityConsolidatedLiabilitiesNoRecourse (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:VariableInterestEntityConsolidatedLiabilitiesNoRecourse
27	goog:AccumulatedPaymentsForOtherCommitments (terseLabel)	Concept (Monetary)	instant	credit	goog:AccumulatedPaymentsForOtherCommitments
28	us-gaap:OtherCommitment (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherCommitment
29	us-gaap:SaleOfStockConsiderationReceivedPerTransaction (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:SaleOfStockConsiderationReceivedPerTransaction
30	us-gaap:ProceedsFromIssuanceOfCommonStock (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromIssuanceOfCommonStock
31	us-gaap:SaleOfStockConsiderationReceivedOnTransaction (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:SaleOfStockConsiderationReceivedOnTransaction
32	us-gaap:VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet

Model Structure
Network	2406402 - Disclosure - Debt (Narrative) (Details) (http://www.google.com/role/DebtNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Debt Disclosure [Abstract]	Abstract	duration		us-gaap:DebtDisclosureAbstract
2	us-gaap:DebtInstrumentTable (terseLabel)	Table	duration		us-gaap:DebtInstrumentTable
3	srt:ConsolidatedEntitiesAxis (terseLabel)	Axis	duration		srt:ConsolidatedEntitiesAxis
4	srt:ConsolidatedEntitiesDomain (terseLabel)	Member	duration		srt:ConsolidatedEntitiesDomain
5	srt:SubsidiariesMember (terseLabel)	Member	duration		srt:SubsidiariesMember
6	us-gaap:CreditFacilityAxis (terseLabel)	Axis	duration		us-gaap:CreditFacilityAxis
7	us-gaap:CreditFacilityDomain (terseLabel)	Member	duration		us-gaap:CreditFacilityDomain
8	us-gaap:CommercialPaperMember (terseLabel)	Member	duration		us-gaap:CommercialPaperMember
9	us-gaap:RevolvingCreditFacilityMember (terseLabel)	Member	duration		us-gaap:RevolvingCreditFacilityMember
10	us-gaap:LongtermDebtTypeAxis (terseLabel)	Axis	duration		us-gaap:LongtermDebtTypeAxis
11	us-gaap:LongtermDebtTypeDomain (terseLabel)	Member	duration		us-gaap:LongtermDebtTypeDomain
12	us-gaap:UnsecuredDebtMember (terseLabel)	Member	duration		us-gaap:UnsecuredDebtMember
13	us-gaap:DebtInstrumentAxis (terseLabel)	Axis	duration		us-gaap:DebtInstrumentAxis
14	us-gaap:DebtInstrumentNameDomain (terseLabel)	Member	duration		us-gaap:DebtInstrumentNameDomain
15	goog:A2011NotesMember (terseLabel)	Member	duration		goog:A2011NotesMember
16	goog:A2014NotesMember (terseLabel)	Member	duration		goog:A2014NotesMember
17	goog:UnsecuredSeniorNotes3.375dueonFebruary2024andUnsecuredSeniorNotes3.625DueMay2021Member (terseLabel)	Member	duration		goog:UnsecuredSeniorNotes3.375dueonFebruary2024andUnsecuredSeniorNotes3.625DueMay2021Member
18	goog:A2016NotesMember (terseLabel)	Member	duration		goog:A2016NotesMember
19	goog:UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember (terseLabel)	Member	duration		goog:UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember
20	goog:UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember (terseLabel)	Member	duration		goog:UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember
21	goog:UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember (terseLabel)	Member	duration		goog:UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember
22	us-gaap:DebtInstrumentLineItems (terseLabel)	LineItems	duration		us-gaap:DebtInstrumentLineItems
23	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
24	us-gaap:CommercialPaper (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CommercialPaper
25	us-gaap:DebtInstrumentFaceAmount (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:DebtInstrumentFaceAmount
26	goog:NumberOfTranches (terseLabel)	Concept (Integer)	instant		goog:NumberOfTranches
27	goog:DebtInstrumentAmountSubjectToExchange (terseLabel)	Concept (Monetary)	instant	credit	goog:DebtInstrumentAmountSubjectToExchange
28	us-gaap:GainsLossesOnRestructuringOfDebt (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:GainsLossesOnRestructuringOfDebt
29	us-gaap:DebtInstrumentInterestRateEffectivePercentage (terseLabel)	Concept (Percent)	instant		us-gaap:DebtInstrumentInterestRateEffectivePercentage
30	us-gaap:LongTermDebtFairValue (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtFairValue
31	us-gaap:LinesOfCreditCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LinesOfCreditCurrent

Model Structure
Network	2406403 - Disclosure - Debt (Long-Term Debt) (Details) (http://www.google.com/role/DebtLongTermDebtDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Debt Disclosure [Abstract]	Abstract	duration		us-gaap:DebtDisclosureAbstract
2	us-gaap:DebtInstrumentTable (terseLabel)	Table	duration		us-gaap:DebtInstrumentTable
3	us-gaap:DebtInstrumentAxis (terseLabel)	Axis	duration		us-gaap:DebtInstrumentAxis
4	us-gaap:DebtInstrumentNameDomain (terseLabel)	Member	duration		us-gaap:DebtInstrumentNameDomain
5	goog:UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember (terseLabel)	Member	duration		goog:UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember
6	goog:UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember (terseLabel)	Member	duration		goog:UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember
7	goog:UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember (terseLabel)	Member	duration		goog:UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember
8	us-gaap:DebtInstrumentLineItems (terseLabel)	LineItems	duration		us-gaap:DebtInstrumentLineItems
9	us-gaap:LongTermDebtNoncurrentAbstract (terseLabel)	Abstract	duration		us-gaap:LongTermDebtNoncurrentAbstract
10	us-gaap:DebtInstrumentCarryingAmount (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:DebtInstrumentCarryingAmount
11	us-gaap:DebtInstrumentUnamortizedDiscount (negatedLabel)	Concept (Monetary)	instant	debit	us-gaap:DebtInstrumentUnamortizedDiscount
12	us-gaap:LongTermDebtNoncurrent (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtNoncurrent
13	us-gaap:CapitalLeaseObligationsNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeaseObligationsNoncurrent
14	us-gaap:LongTermDebtAndCapitalLeaseObligations (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtAndCapitalLeaseObligations
15	us-gaap:DebtInstrumentInterestRateStatedPercentage (terseLabel)	Concept (Percent)	instant		us-gaap:DebtInstrumentInterestRateStatedPercentage

Model Structure
Network	2406404 - Disclosure - Debt (Future Principal Payments for Borrowings) (Details) (http://www.google.com/role/DebtFuturePrincipalPaymentsForBorrowingsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Debt Disclosure [Abstract]	Abstract	duration		us-gaap:DebtDisclosureAbstract
2	us-gaap:LongTermDebtByMaturityAbstract (terseLabel)	Abstract	duration		us-gaap:LongTermDebtByMaturityAbstract
3	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
4	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
5	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
6	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
7	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
8	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
9	us-gaap:LongTermDebt (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebt

Model Structure
Network	2407402 - Disclosure - Supplemental Financial Statement Information (Property and Equipment) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationPropertyAndEquipmentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	goog:BalanceSheetComponentsDisclosureAbstract (label)	Abstract	duration		goog:BalanceSheetComponentsDisclosureAbstract
2	us-gaap:ScheduleOfPropertyPlantAndEquipmentTable (terseLabel)	Table	duration		us-gaap:ScheduleOfPropertyPlantAndEquipmentTable
3	us-gaap:PropertyPlantAndEquipmentByTypeAxis (terseLabel)	Axis	duration		us-gaap:PropertyPlantAndEquipmentByTypeAxis
4	us-gaap:PropertyPlantAndEquipmentTypeDomain (terseLabel)	Member	duration		us-gaap:PropertyPlantAndEquipmentTypeDomain
5	us-gaap:LandAndBuildingMember (terseLabel)	Member	duration		us-gaap:LandAndBuildingMember
6	us-gaap:TechnologyEquipmentMember (terseLabel)	Member	duration		us-gaap:TechnologyEquipmentMember
7	us-gaap:ConstructionInProgressMember (terseLabel)	Member	duration		us-gaap:ConstructionInProgressMember
8	us-gaap:LeaseholdImprovementsMember (terseLabel)	Member	duration		us-gaap:LeaseholdImprovementsMember
9	us-gaap:FurnitureAndFixturesMember (terseLabel)	Member	duration		us-gaap:FurnitureAndFixturesMember
10	us-gaap:PropertyPlantAndEquipmentLineItems (terseLabel)	LineItems	duration		us-gaap:PropertyPlantAndEquipmentLineItems
11	us-gaap:PropertyPlantAndEquipmentNetAbstract (terseLabel)	Abstract	duration		us-gaap:PropertyPlantAndEquipmentNetAbstract
12	us-gaap:PropertyPlantAndEquipmentGross (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:PropertyPlantAndEquipmentGross
13	us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
14	Property and equipment, net	Concept (Monetary)	instant	debit	us-gaap:PropertyPlantAndEquipmentNet
15	us-gaap:CapitalLeasedAssetsGross (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:CapitalLeasedAssetsGross

Model Structure
Network	2407403 - Disclosure - Supplemental Financial Statement Information (Accrued Expenses and Other Current Liabilities) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationAccruedExpensesAndOtherCurrentLiabilitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	goog:BalanceSheetComponentsDisclosureAbstract (label)	Abstract	duration		goog:BalanceSheetComponentsDisclosureAbstract
2	us-gaap:LossContingencyAccrualCarryingValueCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LossContingencyAccrualCarryingValueCurrent
3	goog:AccruedCustomerLiabilitiesCurrent (terseLabel)	Concept (Monetary)	instant	credit	goog:AccruedCustomerLiabilitiesCurrent
4	us-gaap:OtherAccruedLiabilitiesCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherAccruedLiabilitiesCurrent
5	us-gaap:AccruedLiabilitiesCurrent (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:AccruedLiabilitiesCurrent

Model Structure
Network	2407404 - Disclosure - Supplemental Financial Statement Information (Components of Accumulated Other Comprehensive Income) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationComponentsOfAccumulatedOtherComprehensiveIncomeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	goog:BalanceSheetComponentsDisclosureAbstract (label)	Abstract	duration		goog:BalanceSheetComponentsDisclosureAbstract
2	us-gaap:AccumulatedOtherComprehensiveIncomeLossTable (terseLabel)	Table	duration		us-gaap:AccumulatedOtherComprehensiveIncomeLossTable
3	us-gaap:AdjustmentsForNewAccountingPronouncementsAxis (terseLabel)	Axis	duration		us-gaap:AdjustmentsForNewAccountingPronouncementsAxis
4	us-gaap:TypeOfAdoptionMember (terseLabel)	Member	duration		us-gaap:TypeOfAdoptionMember
5	us-gaap:AccountingStandardsUpdate201601Member (terseLabel)	Member	duration		us-gaap:AccountingStandardsUpdate201601Member
6	us-gaap:StatementEquityComponentsAxis (terseLabel)	Axis	duration		us-gaap:StatementEquityComponentsAxis
7	us-gaap:EquityComponentDomain (terseLabel)	Member	duration		us-gaap:EquityComponentDomain
8	us-gaap:RetainedEarningsMember (terseLabel)	Member	duration		us-gaap:RetainedEarningsMember
9	us-gaap:AccumulatedTranslationAdjustmentMember (terseLabel)	Member	duration		us-gaap:AccumulatedTranslationAdjustmentMember
10	Unrealized Gains (Losses) on Available-for-Sale Investments	Member	duration		us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
11	us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember (terseLabel)	Member	duration		us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
12	us-gaap:AccumulatedOtherComprehensiveIncomeMember (terseLabel)	Member	duration		us-gaap:AccumulatedOtherComprehensiveIncomeMember
13	us-gaap:AccumulatedOtherComprehensiveIncomeLossLineItems (terseLabel)	LineItems	duration		us-gaap:AccumulatedOtherComprehensiveIncomeLossLineItems
14	us-gaap:AOCIAttributableToParentNetOfTaxRollForward (terseLabel)	Abstract	duration		us-gaap:AOCIAttributableToParentNetOfTaxRollForward
15	us-gaap:StockholdersEquity (periodStartLabel)	Concept (Monetary)	instant	credit	us-gaap:StockholdersEquity
16	us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent
17	goog:GainLossfromComponentsExcludedfromAssessmentofCashFlowHedgeEffectivenessRecordedinAOCINet (terseLabel)	Concept (Monetary)	duration	credit	goog:GainLossfromComponentsExcludedfromAssessmentofCashFlowHedgeEffectivenessRecordedinAOCINet
18	us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent (negatedLabel)	Concept (Monetary)	duration	debit	us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
19	us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
20	Ending Balance	Concept (Monetary)	instant	credit	us-gaap:StockholdersEquity
21	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption

Model Structure
Network	2407405 - Disclosure - Supplemental Financial Statement Information (Reclassifications Out of Accumulated Other Comprehensive Income (Loss)) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationReclassificationsOutOfAccumulatedOtherComprehensiveIncomeLossDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	goog:BalanceSheetComponentsDisclosureAbstract (label)	Abstract	duration		goog:BalanceSheetComponentsDisclosureAbstract
2	us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable (terseLabel)	Table	duration		us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable
3	us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis (terseLabel)	Axis	duration		us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis
4	us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain (terseLabel)	Member	duration		us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain
5	us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember (terseLabel)	Member	duration		us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
6	us-gaap:StatementEquityComponentsAxis (terseLabel)	Axis	duration		us-gaap:StatementEquityComponentsAxis
7	us-gaap:EquityComponentDomain (terseLabel)	Member	duration		us-gaap:EquityComponentDomain
8	us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember (verboseLabel)	Member	duration		us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
9	us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember (terseLabel)	Member	duration		us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
10	us-gaap:DerivativeInstrumentRiskAxis (terseLabel)	Axis	duration		us-gaap:DerivativeInstrumentRiskAxis
11	us-gaap:DerivativeContractTypeDomain (terseLabel)	Member	duration		us-gaap:DerivativeContractTypeDomain
12	us-gaap:ForeignExchangeContractMember (terseLabel)	Member	duration		us-gaap:ForeignExchangeContractMember
13	us-gaap:InterestRateContractMember (terseLabel)	Member	duration		us-gaap:InterestRateContractMember
14	us-gaap:ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems (terseLabel)	LineItems	duration		us-gaap:ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems
15	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax (verboseLabel)	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
16	us-gaap:NonoperatingIncomeExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NonoperatingIncomeExpense
17	Provision for income taxes	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExpenseBenefit
18	Net of tax	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss

Model Structure
Network	2407406 - Disclosure - Supplemental Financial Statement Information (Components of Other Income (Expense), Net) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationComponentsOfOtherIncomeExpenseNetDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	goog:BalanceSheetComponentsDisclosureAbstract (label)	Abstract	duration		goog:BalanceSheetComponentsDisclosureAbstract
2	us-gaap:InterestIncomeOther (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:InterestIncomeOther
3	us-gaap:InterestExpense (negatedLabel)	Concept (Monetary)	duration	debit	us-gaap:InterestExpense
4	us-gaap:ForeignCurrencyTransactionGainLossBeforeTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:ForeignCurrencyTransactionGainLossBeforeTax
5	us-gaap:DebtSecuritiesRealizedGainLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:DebtSecuritiesRealizedGainLoss
6	Gain (loss) on non-marketable investments, net	Concept (Monetary)	duration	credit	us-gaap:EquitySecuritiesFvNiGainLoss
7	goog:IncomeLossfromEquityMethodInvestmentsandOtherthanTemporaryImpairmentNet (terseLabel)	Concept (Monetary)	duration	credit	goog:IncomeLossfromEquityMethodInvestmentsandOtherthanTemporaryImpairmentNet
8	us-gaap:OtherNonoperatingIncomeExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherNonoperatingIncomeExpense
9	Other income (expense), net	Concept (Monetary)	duration	credit	us-gaap:NonoperatingIncomeExpense
10	us-gaap:InterestCostsCapitalized (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:InterestCostsCapitalized
11	us-gaap:ForeignCurrencyTransactionLossBeforeTax (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ForeignCurrencyTransactionLossBeforeTax
12	goog:DebtSecuritiesUnrealizedGainLossOnExtinguishmentOfSecurities (terseLabel)	Concept (Monetary)	duration	credit	goog:DebtSecuritiesUnrealizedGainLossOnExtinguishmentOfSecurities

Model Structure
Network	2408401 - Disclosure - Acquisitions (Narrative) (Details) (http://www.google.com/role/AcquisitionsNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Business Combinations [Abstract]	Abstract	duration		us-gaap:BusinessCombinationsAbstract
2	us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTable (terseLabel)	Table	duration		us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTable
3	us-gaap:BusinessAcquisitionAxis (terseLabel)	Axis	duration		us-gaap:BusinessAcquisitionAxis
4	us-gaap:BusinessAcquisitionAcquireeDomain (terseLabel)	Member	duration		us-gaap:BusinessAcquisitionAcquireeDomain
5	goog:HTCMember (terseLabel)	Member	duration		goog:HTCMember
6	us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember (terseLabel)	Member	duration		us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember
7	us-gaap:FiniteLivedIntangibleAssetsByMajorClassAxis (terseLabel)	Axis	duration		us-gaap:FiniteLivedIntangibleAssetsByMajorClassAxis
8	us-gaap:FiniteLivedIntangibleAssetsMajorClassNameDomain (terseLabel)	Member	duration		us-gaap:FiniteLivedIntangibleAssetsMajorClassNameDomain
9	goog:PatentsAndDevelopedTechnologyMember (terseLabel)	Member	duration		goog:PatentsAndDevelopedTechnologyMember
10	us-gaap:CustomerRelationshipsMember (terseLabel)	Member	duration		us-gaap:CustomerRelationshipsMember
11	goog:TradenamesAndOtherMember (terseLabel)	Member	duration		goog:TradenamesAndOtherMember
12	us-gaap:BusinessAcquisitionLineItems (terseLabel)	LineItems	duration		us-gaap:BusinessAcquisitionLineItems
13	us-gaap:PaymentsToAcquireBusinessesGross (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquireBusinessesGross
14	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
15	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
16	us-gaap:Goodwill (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:Goodwill
17	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
18	us-gaap:BusinessCombinationConsiderationTransferred1 (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:BusinessCombinationConsiderationTransferred1
19	us-gaap:AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife (terseLabel)	Concept (Duration)	duration		us-gaap:AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
20	us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount

Model Structure
Network	2409402 - Disclosure - Goodwill and Other Intangible Assets (Changes in Carrying Amount of Goodwill) (Details) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsChangesInCarryingAmountOfGoodwillDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Goodwill and Intangible Assets Disclosure [Abstract]	Abstract	duration		us-gaap:GoodwillAndIntangibleAssetsDisclosureAbstract
2	us-gaap:ScheduleOfGoodwillTable (terseLabel)	Table	duration		us-gaap:ScheduleOfGoodwillTable
3	us-gaap:StatementBusinessSegmentsAxis (terseLabel)	Axis	duration		us-gaap:StatementBusinessSegmentsAxis
4	us-gaap:SegmentDomain (terseLabel)	Member	duration		us-gaap:SegmentDomain
5	goog:GoogleInc.Member (terseLabel)	Member	duration		goog:GoogleInc.Member
6	us-gaap:AllOtherSegmentsMember (terseLabel)	Member	duration		us-gaap:AllOtherSegmentsMember
7	us-gaap:GoodwillLineItems (terseLabel)	LineItems	duration		us-gaap:GoodwillLineItems
8	us-gaap:GoodwillRollForward (terseLabel)	Abstract	duration		us-gaap:GoodwillRollForward
9	Goodwill, Beginning of Period	Concept (Monetary)	instant	debit	us-gaap:Goodwill
10	us-gaap:GoodwillAcquiredDuringPeriod (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:GoodwillAcquiredDuringPeriod
11	us-gaap:GoodwillTransfers (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:GoodwillTransfers
12	us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments
13	Goodwill, End of Period	Concept (Monetary)	instant	debit	us-gaap:Goodwill

Model Structure
Network	2409403 - Disclosure - Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsAcquisitionRelatedIntangibleAssetsThatAreBeingAmortizedDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Goodwill and Intangible Assets Disclosure [Abstract]	Abstract	duration		us-gaap:GoodwillAndIntangibleAssetsDisclosureAbstract
2	us-gaap:ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable (terseLabel)	Table	duration		us-gaap:ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable
3	us-gaap:FiniteLivedIntangibleAssetsByMajorClassAxis (terseLabel)	Axis	duration		us-gaap:FiniteLivedIntangibleAssetsByMajorClassAxis
4	us-gaap:FiniteLivedIntangibleAssetsMajorClassNameDomain (terseLabel)	Member	duration		us-gaap:FiniteLivedIntangibleAssetsMajorClassNameDomain
5	goog:PatentsAndDevelopedTechnologyMember (terseLabel)	Member	duration		goog:PatentsAndDevelopedTechnologyMember
6	us-gaap:CustomerRelationshipsMember (terseLabel)	Member	duration		us-gaap:CustomerRelationshipsMember
7	goog:TradenamesAndOtherMember (terseLabel)	Member	duration		goog:TradenamesAndOtherMember
8	us-gaap:AcquiredFiniteLivedIntangibleAssetsLineItems (terseLabel)	LineItems	duration		us-gaap:AcquiredFiniteLivedIntangibleAssetsLineItems
9	us-gaap:FiniteLivedIntangibleAssetsGross (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:FiniteLivedIntangibleAssetsGross
10	us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
11	Net Carrying Amount	Concept (Monetary)	instant	debit	us-gaap:IntangibleAssetsNetExcludingGoodwill

Model Structure
Network	2409404 - Disclosure - Goodwill and Other Intangible Assets (Narrative) (Details) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Goodwill and Intangible Assets Disclosure [Abstract]	Abstract	duration		us-gaap:GoodwillAndIntangibleAssetsDisclosureAbstract
2	us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTable (terseLabel)	Table	duration		us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTable
3	us-gaap:FiniteLivedIntangibleAssetsByMajorClassAxis (terseLabel)	Axis	duration		us-gaap:FiniteLivedIntangibleAssetsByMajorClassAxis
4	us-gaap:FiniteLivedIntangibleAssetsMajorClassNameDomain (terseLabel)	Member	duration		us-gaap:FiniteLivedIntangibleAssetsMajorClassNameDomain
5	goog:PatentsAndDevelopedTechnologyMember (terseLabel)	Member	duration		goog:PatentsAndDevelopedTechnologyMember
6	us-gaap:CustomerRelationshipsMember (terseLabel)	Member	duration		us-gaap:CustomerRelationshipsMember
7	goog:TradenamesAndOtherMember (terseLabel)	Member	duration		goog:TradenamesAndOtherMember
8	goog:AcquisitionrelatedIntangibleAssetsMember (terseLabel)	Member	duration		goog:AcquisitionrelatedIntangibleAssetsMember
9	us-gaap:FiniteLivedIntangibleAssetsLineItems (terseLabel)	LineItems	duration		us-gaap:FiniteLivedIntangibleAssetsLineItems
10	us-gaap:FiniteLivedIntangibleAssetUsefulLife (terseLabel)	Concept (Duration)	duration		us-gaap:FiniteLivedIntangibleAssetUsefulLife
11	us-gaap:AmortizationOfIntangibleAssets (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:AmortizationOfIntangibleAssets

Model Structure
Network	2409405 - Disclosure - Goodwill and Other Intangible Assets (Expected Amortization Expense for Acquisition-Related Intangible Assets) (Details) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsExpectedAmortizationExpenseForAcquisitionRelatedIntangibleAssetsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Goodwill and Intangible Assets Disclosure [Abstract]	Abstract	duration		us-gaap:GoodwillAndIntangibleAssetsDisclosureAbstract
2	us-gaap:FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract (terseLabel)	Abstract	duration		us-gaap:FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract
3	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
4	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
5	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
6	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
7	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
8	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
9	us-gaap:FiniteLivedIntangibleAssetsNet (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:FiniteLivedIntangibleAssetsNet

Model Structure
Network	2411402 - Disclosure - Commitments and Contingencies (Future Minimum Payments Under Non-Cancelable Operating Leases, Along with Sublease Income Amounts) (Details) (http://www.google.com/role/CommitmentsAndContingenciesFutureMinimumPaymentsUnderNonCancelableOperatingLeasesAlongWithSubleaseIncomeAmountsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Commitments and Contingencies Disclosure [Abstract]	Abstract	duration		us-gaap:CommitmentsAndContingenciesDisclosureAbstract
2	us-gaap:OperatingLeasesFutureMinimumPaymentsDueAbstract (terseLabel)	Abstract	duration		us-gaap:OperatingLeasesFutureMinimumPaymentsDueAbstract
3	us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent
4	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInTwoYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInTwoYears
5	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInThreeYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInThreeYears
6	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFourYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFourYears
7	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFiveYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFiveYears
8	us-gaap:OperatingLeasesFutureMinimumPaymentsDueThereafter (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueThereafter
9	us-gaap:OperatingLeasesFutureMinimumPaymentsDue (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDue
10	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableAbstract (terseLabel)	Abstract	duration		us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableAbstract
11	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableCurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableCurrent
12	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears
13	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears
14	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInFourYears (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInFourYears
15	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears
16	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableThereafter (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableThereafter
17	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivable (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLeasesFutureMinimumPaymentsReceivable
18	goog:OperatingLeasesFutureMinimumPaymentsDueNetFiscalYearMaturityAbstract (terseLabel)	Abstract	duration		goog:OperatingLeasesFutureMinimumPaymentsDueNetFiscalYearMaturityAbstract
19	goog:OperatingLeasesFutureMinimumPaymentsDueNetNextTwelveMonths (totalLabel)	Concept (Monetary)	instant	credit	goog:OperatingLeasesFutureMinimumPaymentsDueNetNextTwelveMonths
20	goog:OperatingLeasesFutureMinimumPaymentsDueNetinTwoYears (totalLabel)	Concept (Monetary)	instant	credit	goog:OperatingLeasesFutureMinimumPaymentsDueNetinTwoYears
21	goog:OperatingLeasesFutureMinimumPaymentsDueNetinThreeYears (totalLabel)	Concept (Monetary)	instant	credit	goog:OperatingLeasesFutureMinimumPaymentsDueNetinThreeYears
22	goog:OperatingLeasesFutureMinimumPaymentsDueNetinFourYears (totalLabel)	Concept (Monetary)	instant	credit	goog:OperatingLeasesFutureMinimumPaymentsDueNetinFourYears
23	goog:OperatingLeasesFutureMinimumPaymentsDueNetinFiveYears (totalLabel)	Concept (Monetary)	instant	credit	goog:OperatingLeasesFutureMinimumPaymentsDueNetinFiveYears
24	goog:OperatingLeasesFutureMinimumPaymentsDueNetThereafter (totalLabel)	Concept (Monetary)	instant	credit	goog:OperatingLeasesFutureMinimumPaymentsDueNetThereafter
25	goog:OperatingLeasesFutureMinimumPaymentsDueNetTotal (totalLabel)	Concept (Monetary)	instant	credit	goog:OperatingLeasesFutureMinimumPaymentsDueNetTotal

Model Structure
Network	2411403 - Disclosure - Commitments and Contingencies (Narrative) (Details) (http://www.google.com/role/CommitmentsAndContingenciesNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Commitments and Contingencies Disclosure [Abstract]	Abstract	duration		us-gaap:CommitmentsAndContingenciesDisclosureAbstract
2	goog:CommitmentsAndContingenciesDisclosureTable (terseLabel)	Table	duration		goog:CommitmentsAndContingenciesDisclosureTable
3	us-gaap:LossContingenciesByNatureOfContingencyAxis (terseLabel)	Axis	duration		us-gaap:LossContingenciesByNatureOfContingencyAxis
4	us-gaap:LossContingencyNatureDomain (terseLabel)	Member	duration		us-gaap:LossContingencyNatureDomain
5	us-gaap:UnfavorableRegulatoryActionMember (terseLabel)	Member	duration		us-gaap:UnfavorableRegulatoryActionMember
6	us-gaap:BalanceSheetLocationAxis (terseLabel)	Axis	duration		us-gaap:BalanceSheetLocationAxis
7	us-gaap:BalanceSheetLocationDomain (terseLabel)	Member	duration		us-gaap:BalanceSheetLocationDomain
8	us-gaap:PropertyPlantAndEquipmentMember (terseLabel)	Member	duration		us-gaap:PropertyPlantAndEquipmentMember
9	goog:CommitmentsAndContingenciesDisclosureLineItems (terseLabel)	LineItems	duration		goog:CommitmentsAndContingenciesDisclosureLineItems
10	goog:NonCancelableFutureMinimumLeasePayments (terseLabel)	Concept (Monetary)	instant	credit	goog:NonCancelableFutureMinimumLeasePayments
11	us-gaap:LeaseAndRentalExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:LeaseAndRentalExpense
12	us-gaap:PurchaseObligation (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:PurchaseObligation
13	us-gaap:LossContingencyLossInPeriod (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:LossContingencyLossInPeriod

Model Structure
Network	2412401 - Disclosure - Stockholders' Equity (Narrative) (Details) (http://www.google.com/role/StockholdersEquityNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Equity [Abstract]	Abstract	duration		us-gaap:EquityAbstract
2	goog:StockholdersEquityNoteTable (terseLabel)	Table	duration		goog:StockholdersEquityNoteTable
3	us-gaap:StatementClassOfStockAxis (terseLabel)	Axis	duration		us-gaap:StatementClassOfStockAxis
4	us-gaap:ClassOfStockDomain (terseLabel)	Member	duration		us-gaap:ClassOfStockDomain
5	us-gaap:CommonClassAMember (terseLabel)	Member	duration		us-gaap:CommonClassAMember
6	us-gaap:CommonClassBMember (terseLabel)	Member	duration		us-gaap:CommonClassBMember
7	goog:CapitalClassCMember (terseLabel)	Member	duration		goog:CapitalClassCMember
8	us-gaap:ShareRepurchaseProgramAxis (terseLabel)	Axis	duration		us-gaap:ShareRepurchaseProgramAxis
9	us-gaap:ShareRepurchaseProgramDomain (terseLabel)	Member	duration		us-gaap:ShareRepurchaseProgramDomain
10	goog:ShareRepurchaseProgramMember (terseLabel)	Member	duration		goog:ShareRepurchaseProgramMember
11	goog:StockholdersEquityNoteLineItems (terseLabel)	LineItems	duration		goog:StockholdersEquityNoteLineItems
12	us-gaap:PreferredStockSharesAuthorized (terseLabel)	Concept (Shares)	instant		us-gaap:PreferredStockSharesAuthorized
13	us-gaap:PreferredStockParOrStatedValuePerShare (terseLabel)	Concept (Per-Share)	instant		us-gaap:PreferredStockParOrStatedValuePerShare
14	us-gaap:PreferredStockSharesIssued (terseLabel)	Concept (Shares)	instant		us-gaap:PreferredStockSharesIssued
15	us-gaap:PreferredStockSharesOutstanding (terseLabel)	Concept (Shares)	instant		us-gaap:PreferredStockSharesOutstanding
16	goog:NumberOfClassesOfCommonStock (terseLabel)	Concept (Integer)	instant		goog:NumberOfClassesOfCommonStock
17	goog:CommonStockNumberofVotes (terseLabel)	Concept (Integer)	instant		goog:CommonStockNumberofVotes
18	us-gaap:StockRepurchaseProgramAuthorizedAmount1 (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:StockRepurchaseProgramAuthorizedAmount1
19	Repurchases of capital stock (in shares)	Concept (Shares)	duration		us-gaap:StockRepurchasedAndRetiredDuringPeriodShares
20	Repurchases of capital stock	Concept (Monetary)	duration	debit	us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

Model Structure
Network	2413402 - Disclosure - Net Income Per Share (Schedule of Earnings Per Share) (Details) (http://www.google.com/role/NetIncomePerShareScheduleOfEarningsPerShareDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Earnings Per Share [Abstract]	Abstract	duration		us-gaap:EarningsPerShareAbstract
2	goog:EarningsPerShareDisclosureTable (terseLabel)	Table	duration		goog:EarningsPerShareDisclosureTable
3	us-gaap:StatementClassOfStockAxis (terseLabel)	Axis	duration		us-gaap:StatementClassOfStockAxis
4	us-gaap:ClassOfStockDomain (terseLabel)	Member	duration		us-gaap:ClassOfStockDomain
5	us-gaap:CommonClassAMember (terseLabel)	Member	duration		us-gaap:CommonClassAMember
6	us-gaap:CommonClassBMember (terseLabel)	Member	duration		us-gaap:CommonClassBMember
7	goog:CapitalClassCMember (terseLabel)	Member	duration		goog:CapitalClassCMember
8	goog:EarningsPerShareDisclosureLineItems (terseLabel)	LineItems	duration		goog:EarningsPerShareDisclosureLineItems
9	us-gaap:EarningsPerShareBasicAbstract (terseLabel)	Abstract	duration		us-gaap:EarningsPerShareBasicAbstract
10	us-gaap:NetIncomeLossAvailableToCommonStockholdersBasicAbstract (terseLabel)	Abstract	duration		us-gaap:NetIncomeLossAvailableToCommonStockholdersBasicAbstract
11	us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
12	us-gaap:WeightedAverageNumberOfSharesOutstandingBasicAbstract (terseLabel)	Abstract	duration		us-gaap:WeightedAverageNumberOfSharesOutstandingBasicAbstract
13	us-gaap:WeightedAverageNumberOfSharesOutstandingBasic (terseLabel)	Concept (Shares)	duration		us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
14	Basic net income per share (in dollars per share)	Concept (Per-Share)	duration		us-gaap:EarningsPerShareBasic
15	us-gaap:EarningsPerShareDilutedAbstract (terseLabel)	Abstract	duration		us-gaap:EarningsPerShareDilutedAbstract
16	us-gaap:NetIncomeLossAvailableToCommonStockholdersDilutedAbstract (terseLabel)	Abstract	duration		us-gaap:NetIncomeLossAvailableToCommonStockholdersDilutedAbstract
17	goog:DilutiveSecuritiesEffectOnBasicEarningsPerShareDilutiveEquitySecurities (terseLabel)	Concept (Monetary)	duration	credit	goog:DilutiveSecuritiesEffectOnBasicEarningsPerShareDilutiveEquitySecurities
18	goog:NetIncomeLossAvailableToCommonStockholdersBeforeReallocationOfUndistributedEarningsDiluted (totalLabel)	Concept (Monetary)	duration	credit	goog:NetIncomeLossAvailableToCommonStockholdersBeforeReallocationOfUndistributedEarningsDiluted
19	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (terseLabel)	Concept (Monetary)	duration	credit	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares
20	goog:ReallocationOfUndistributedEarnings (negatedLabel)	Concept (Monetary)	duration	debit	goog:ReallocationOfUndistributedEarnings
21	us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted
22	us-gaap:WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract (terseLabel)	Abstract	duration		us-gaap:WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract
23	us-gaap:WeightedAverageNumberOfSharesOutstandingBasic (terseLabel)	Concept (Shares)	duration		us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
24	us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract (terseLabel)	Abstract	duration		us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract
25	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (terseLabel)	Concept (Shares)	duration		goog:IncrementalCommonSharesAttributableToConversionOfCommonStock
26	us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements (terseLabel)	Concept (Shares)	duration		us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
27	us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding (totalLabel)	Concept (Shares)	duration		us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
28	Diluted net income per share (in dollars per share)	Concept (Per-Share)	duration		us-gaap:EarningsPerShareDiluted

Model Structure
Network	2414402 - Disclosure - Compensation Plans (Stock Plans) (Details) (http://www.google.com/role/CompensationPlansStockPlansDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	Abstract	duration	us-gaap:DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
2	us-gaap:ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable (terseLabel)	Table	duration	us-gaap:ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable
3	us-gaap:AwardTypeAxis (terseLabel)	Axis	duration	us-gaap:AwardTypeAxis
4	us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain (terseLabel)	Member	duration	us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain
5	us-gaap:EmployeeStockOptionMember (terseLabel)	Member	duration	us-gaap:EmployeeStockOptionMember
6	us-gaap:RestrictedStockUnitsRSUMember (terseLabel)	Member	duration	us-gaap:RestrictedStockUnitsRSUMember
7	Stock Plans	LineItems	duration	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
8	goog:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationTerm (terseLabel)	Concept (Duration)	duration	goog:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationTerm
9	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1 (terseLabel)	Concept (Duration)	duration	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
10	us-gaap:CommonStockCapitalSharesReservedForFutureIssuance (terseLabel)	Concept (Shares)	instant	us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

Model Structure
Network	2414403 - Disclosure - Compensation Plans (Stock Based Compensation) (Details) (http://www.google.com/role/CompensationPlansStockBasedCompensationDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	Abstract	duration		us-gaap:DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
2	us-gaap:AllocatedShareBasedCompensationExpense (verboseLabel)	Concept (Monetary)	duration	debit	us-gaap:AllocatedShareBasedCompensationExpense
3	Stock-based compensation expense, awards we expect to settle in Alphabet stock	Concept (Monetary)	duration	debit	us-gaap:ShareBasedCompensation
4	us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
5	goog:TaxBenefitFromStockBasedAwardActivity (terseLabel)	Concept (Monetary)	duration	debit	goog:TaxBenefitFromStockBasedAwardActivity

Model Structure
Network	2414404 - Disclosure - Compensation Plans (Stock Based Award Activities) (Details) (http://www.google.com/role/CompensationPlansStockBasedAwardActivitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	Abstract	duration		us-gaap:DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
2	us-gaap:ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable (terseLabel)	Table	duration		us-gaap:ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable
3	us-gaap:AwardTypeAxis (terseLabel)	Axis	duration		us-gaap:AwardTypeAxis
4	us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain (terseLabel)	Member	duration		us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain
5	us-gaap:RestrictedStockUnitsRSUMember (terseLabel)	Member	duration		us-gaap:RestrictedStockUnitsRSUMember
6	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems (terseLabel)	LineItems	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
7	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward (terseLabel)	Abstract	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward
8	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber (periodStartLabel)	Concept (Shares)	instant		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
9	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod (terseLabel)	Concept (Shares)	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
10	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod (negatedLabel)	Concept (Shares)	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
11	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod (negatedLabel)	Concept (Shares)	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
12	Unvested at end of period (in shares)	Concept (Shares)	instant		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
13	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward (terseLabel)	Abstract	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward
14	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue (periodStartLabel)	Concept (Per-Share)	instant		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
15	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue (terseLabel)	Concept (Per-Share)	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
16	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue (terseLabel)	Concept (Per-Share)	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
17	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue (terseLabel)	Concept (Per-Share)	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
18	Unvested at end of period (in dollars per share)	Concept (Per-Share)	instant		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
19	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
20	us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
21	us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1 (terseLabel)	Concept (Duration)	duration		us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1

Model Structure
Network	2414405 - Disclosure - Compensation Plans (401k Plans and Performance Fees) (Details) (http://www.google.com/role/CompensationPlans401KPlansAndPerformanceFeesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	Abstract	duration		us-gaap:DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
2	goog:DefinedContributionPlanNumberofPlans (terseLabel)	Concept (Integer)	duration		goog:DefinedContributionPlanNumberofPlans
3	us-gaap:DefinedContributionPlanCostRecognized (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DefinedContributionPlanCostRecognized
4	goog:CompensationExpensePerformanceFees (terseLabel)	Concept (Monetary)	duration	debit	goog:CompensationExpensePerformanceFees

Model Structure
Network	2415402 - Disclosure - Income Taxes (Narrative) (Details) (http://www.google.com/role/IncomeTaxesNarrativeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration		us-gaap:IncomeTaxDisclosureAbstract
2	goog:IncomeTaxesTable (terseLabel)	Table	duration		goog:IncomeTaxesTable
3	us-gaap:IncomeTaxAuthorityAxis (terseLabel)	Axis	duration		us-gaap:IncomeTaxAuthorityAxis
4	us-gaap:IncomeTaxAuthorityDomain (terseLabel)	Member	duration		us-gaap:IncomeTaxAuthorityDomain
5	us-gaap:DomesticCountryMember (terseLabel)	Member	duration		us-gaap:DomesticCountryMember
6	us-gaap:StateAndLocalJurisdictionMember (terseLabel)	Member	duration		us-gaap:StateAndLocalJurisdictionMember
7	us-gaap:ForeignCountryMember (terseLabel)	Member	duration		us-gaap:ForeignCountryMember
8	goog:IncomeTaxesLineItems (terseLabel)	LineItems	duration		goog:IncomeTaxesLineItems
9	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
10	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
11	goog:TaxCutsandJobsActof2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	goog:TaxCutsandJobsActof2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit
12	goog:TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseBenefit (negatedTerseLabel)	Concept (Monetary)	duration	debit	goog:TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseBenefit
13	us-gaap:OperatingLossCarryforwards (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLossCarryforwards
14	us-gaap:TaxCreditCarryforwardAmount (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:TaxCreditCarryforwardAmount
15	us-gaap:UnrecognizedTaxBenefits (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecognizedTaxBenefits
16	us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
17	us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
18	goog:NumberOfTaxJurisdictions (terseLabel)	Concept (Integer)	duration		goog:NumberOfTaxJurisdictions
19	us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible

Model Structure
Network	2415403 - Disclosure - Income Taxes (Provision for Income Taxes) (Details) (http://www.google.com/role/IncomeTaxesProvisionForIncomeTaxesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration		us-gaap:IncomeTaxDisclosureAbstract
2	us-gaap:IncomeTaxExpenseBenefitContinuingOperationsAbstract (terseLabel)	Abstract	duration		us-gaap:IncomeTaxExpenseBenefitContinuingOperationsAbstract
3	us-gaap:CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract (terseLabel)	Abstract	duration		us-gaap:CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract
4	us-gaap:CurrentFederalStateAndLocalTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:CurrentFederalStateAndLocalTaxExpenseBenefit
5	us-gaap:CurrentForeignTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:CurrentForeignTaxExpenseBenefit
6	us-gaap:CurrentIncomeTaxExpenseBenefit (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:CurrentIncomeTaxExpenseBenefit
7	us-gaap:DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract (terseLabel)	Abstract	duration		us-gaap:DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract
8	us-gaap:DeferredFederalStateAndLocalTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DeferredFederalStateAndLocalTaxExpenseBenefit
9	us-gaap:DeferredForeignIncomeTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DeferredForeignIncomeTaxExpenseBenefit
10	us-gaap:DeferredIncomeTaxExpenseBenefit (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:DeferredIncomeTaxExpenseBenefit
11	Provision for income taxes	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExpenseBenefit

Model Structure
Network	2415404 - Disclosure - Income Taxes (Reconciliation of Federal Statutory Income Tax Rate to Effective Income Tax Rate) (Details) (http://www.google.com/role/IncomeTaxesReconciliationOfFederalStatutoryIncomeTaxRateToEffectiveIncomeTaxRateDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration	us-gaap:IncomeTaxDisclosureAbstract
2	us-gaap:EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract (terseLabel)	Abstract	duration	us-gaap:EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract
3	us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate (terseLabel)	Concept (Percent)	duration	us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
4	us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential (terseLabel)	Concept (Percent)	duration	us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
5	goog:ImpactofTaxCutsandJobsActAbstract (terseLabel)	Abstract	duration	goog:ImpactofTaxCutsandJobsActAbstract
6	goog:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsPercent (terseLabel)	Concept (Percent)	duration	goog:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsPercent
7	us-gaap:EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate (terseLabel)	Concept (Percent)	duration	us-gaap:EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
8	us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch (negatedLabel)	Concept (Percent)	duration	us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
9	us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost (negatedTerseLabel)	Concept (Percent)	duration	us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
10	goog:EffectiveIncomeTaxRateReconciliationRegulatoryFine (terseLabel)	Concept (Percent)	duration	goog:EffectiveIncomeTaxRateReconciliationRegulatoryFine
11	us-gaap:EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance (terseLabel)	Concept (Percent)	duration	us-gaap:EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
12	us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments (terseLabel)	Concept (Percent)	duration	us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments
13	us-gaap:EffectiveIncomeTaxRateContinuingOperations (totalLabel)	Concept (Percent)	duration	us-gaap:EffectiveIncomeTaxRateContinuingOperations

Model Structure
Network	2415405 - Disclosure - Income Taxes (Significant Components of Deferred Tax Assets and Liabilities) (Details) (http://www.google.com/role/IncomeTaxesSignificantComponentsOfDeferredTaxAssetsAndLiabilitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration		us-gaap:IncomeTaxDisclosureAbstract
2	us-gaap:ComponentsOfDeferredTaxAssetsAbstract (terseLabel)	Abstract	duration		us-gaap:ComponentsOfDeferredTaxAssetsAbstract
3	us-gaap:DeferredTaxAssetsNetAbstract (terseLabel)	Abstract	duration		us-gaap:DeferredTaxAssetsNetAbstract
4	us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
5	us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
6	us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther
7	us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsOther (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsOther
8	goog:DeferredTaxAssetsBasisDifferenceInInvestmentInHomeBusiness (terseLabel)	Concept (Monetary)	instant	debit	goog:DeferredTaxAssetsBasisDifferenceInInvestmentInHomeBusiness
9	goog:DeferredTaxAssetsDeferredCostSharing (terseLabel)	Concept (Monetary)	instant	debit	goog:DeferredTaxAssetsDeferredCostSharing
10	us-gaap:DeferredTaxAssetsOperatingLossCarryforwards (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsOperatingLossCarryforwards
11	us-gaap:DeferredTaxAssetsOther (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsOther
12	us-gaap:DeferredTaxAssetsGross (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsGross
13	us-gaap:DeferredTaxAssetsValuationAllowance (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxAssetsValuationAllowance
14	us-gaap:DeferredTaxAssetsNet (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsNet
15	us-gaap:DeferredTaxLiabilitiesAbstract (terseLabel)	Abstract	duration		us-gaap:DeferredTaxLiabilitiesAbstract
16	us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
17	us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
18	goog:DeferredTaxLiabilitiesRenewableEnergyInvestments (negatedLabel)	Concept (Monetary)	instant	credit	goog:DeferredTaxLiabilitiesRenewableEnergyInvestments
19	us-gaap:DeferredTaxLiabilitiesInvestments (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxLiabilitiesInvestments
20	us-gaap:DeferredTaxLiabilitiesOther (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxLiabilitiesOther
21	us-gaap:DeferredIncomeTaxLiabilities (negatedTotalLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredIncomeTaxLiabilities
22	us-gaap:DeferredTaxAssetsLiabilitiesNet (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsLiabilitiesNet
23	us-gaap:DeferredTaxLiabilities (negatedTotalLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxLiabilities

Model Structure
Network	2415406 - Disclosure - Income Taxes (Summary of Activity Related to Gross Unrecognized Tax Benefits) (Details) (http://www.google.com/role/IncomeTaxesSummaryOfActivityRelatedToGrossUnrecognizedTaxBenefitsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration		us-gaap:IncomeTaxDisclosureAbstract
2	us-gaap:ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward (terseLabel)	Abstract	duration		us-gaap:ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward
3	Beginning Balance	Concept (Monetary)	instant	credit	us-gaap:UnrecognizedTaxBenefits
4	us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
5	us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions (negatedLabel)	Concept (Monetary)	duration	debit	us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
6	us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities (negatedLabel)	Concept (Monetary)	duration	debit	us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
7	us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
8	Ending Balance	Concept (Monetary)	instant	credit	us-gaap:UnrecognizedTaxBenefits

Model Structure
Network	2416402 - Disclosure - Information about Segments and Geographic Areas (Revenue by Segment) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasRevenueBySegmentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Segment Reporting [Abstract]	Abstract	duration		us-gaap:SegmentReportingAbstract
2	us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable (terseLabel)	Table	duration		us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable
3	us-gaap:StatementBusinessSegmentsAxis (terseLabel)	Axis	duration		us-gaap:StatementBusinessSegmentsAxis
4	us-gaap:SegmentDomain (terseLabel)	Member	duration		us-gaap:SegmentDomain
5	goog:GoogleInc.Member (terseLabel)	Member	duration		goog:GoogleInc.Member
6	us-gaap:AllOtherSegmentsMember (terseLabel)	Member	duration		us-gaap:AllOtherSegmentsMember
7	us-gaap:SegmentReportingInformationLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingInformationLineItems
8	Revenues	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

Model Structure
Network	2416403 - Disclosure - Information about Segments and Geographic Areas (Operating Income/Loss by Segment) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasOperatingIncomeLossBySegmentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Segment Reporting [Abstract]	Abstract	duration		us-gaap:SegmentReportingAbstract
2	us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable (terseLabel)	Table	duration		us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable
3	srt:ConsolidationItemsAxis (terseLabel)	Axis	duration		srt:ConsolidationItemsAxis
4	srt:ConsolidationItemsDomain (terseLabel)	Member	duration		srt:ConsolidationItemsDomain
5	us-gaap:OperatingSegmentsMember (terseLabel)	Member	duration		us-gaap:OperatingSegmentsMember
6	us-gaap:CorporateNonSegmentMember (terseLabel)	Member	duration		us-gaap:CorporateNonSegmentMember
7	us-gaap:StatementBusinessSegmentsAxis (terseLabel)	Axis	duration		us-gaap:StatementBusinessSegmentsAxis
8	us-gaap:SegmentDomain (terseLabel)	Member	duration		us-gaap:SegmentDomain
9	goog:GoogleInc.Member (terseLabel)	Member	duration		goog:GoogleInc.Member
10	us-gaap:AllOtherSegmentsMember (terseLabel)	Member	duration		us-gaap:AllOtherSegmentsMember
11	us-gaap:SegmentReportingInformationLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingInformationLineItems
12	Segment operating income / (loss)	Concept (Monetary)	duration	credit	us-gaap:OperatingIncomeLoss

Model Structure
Network	2416404 - Disclosure - Information about Segments and Geographic Areas (Capital Expenditures by Segment) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasCapitalExpendituresBySegmentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Segment Reporting [Abstract]	Abstract	duration		us-gaap:SegmentReportingAbstract
2	us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable (terseLabel)	Table	duration		us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable
3	srt:ConsolidationItemsAxis (terseLabel)	Axis	duration		srt:ConsolidationItemsAxis
4	srt:ConsolidationItemsDomain (terseLabel)	Member	duration		srt:ConsolidationItemsDomain
5	us-gaap:OperatingSegmentsMember (terseLabel)	Member	duration		us-gaap:OperatingSegmentsMember
6	us-gaap:MaterialReconcilingItemsMember (terseLabel)	Member	duration		us-gaap:MaterialReconcilingItemsMember
7	us-gaap:StatementBusinessSegmentsAxis (terseLabel)	Axis	duration		us-gaap:StatementBusinessSegmentsAxis
8	us-gaap:SegmentDomain (terseLabel)	Member	duration		us-gaap:SegmentDomain
9	goog:GoogleInc.Member (terseLabel)	Member	duration		goog:GoogleInc.Member
10	us-gaap:AllOtherSegmentsMember (terseLabel)	Member	duration		us-gaap:AllOtherSegmentsMember
11	us-gaap:SegmentReportingInformationLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingInformationLineItems
12	Capital expenditures	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

Model Structure
Network	2416405 - Disclosure - Information about Segments and Geographic Areas (Stock-based Compensation and Depreciation, Amortization and Impairment by Segment) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasStockBasedCompensationAndDepreciationAmortizationAndImpairmentBySegmentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Segment Reporting [Abstract]	Abstract	duration		us-gaap:SegmentReportingAbstract
2	us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable (terseLabel)	Table	duration		us-gaap:ScheduleOfSegmentReportingInformationBySegmentTable
3	srt:ConsolidationItemsAxis (terseLabel)	Axis	duration		srt:ConsolidationItemsAxis
4	srt:ConsolidationItemsDomain (terseLabel)	Member	duration		srt:ConsolidationItemsDomain
5	us-gaap:OperatingSegmentsMember (terseLabel)	Member	duration		us-gaap:OperatingSegmentsMember
6	us-gaap:CorporateNonSegmentMember (terseLabel)	Member	duration		us-gaap:CorporateNonSegmentMember
7	us-gaap:StatementBusinessSegmentsAxis (terseLabel)	Axis	duration		us-gaap:StatementBusinessSegmentsAxis
8	us-gaap:SegmentDomain (terseLabel)	Member	duration		us-gaap:SegmentDomain
9	goog:GoogleInc.Member (terseLabel)	Member	duration		goog:GoogleInc.Member
10	us-gaap:AllOtherSegmentsMember (terseLabel)	Member	duration		us-gaap:AllOtherSegmentsMember
11	us-gaap:SegmentReportingInformationLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingInformationLineItems
12	us-gaap:ShareBasedCompensation (verboseLabel)	Concept (Monetary)	duration	debit	us-gaap:ShareBasedCompensation
13	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (terseLabel)	Concept (Monetary)	duration	debit	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment

Model Structure
Network	2416406 - Disclosure - Information about Segments and Geographic Areas (Long-Lived Assets by Geographic Area) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasLongLivedAssetsByGeographicAreaDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Segment Reporting [Abstract]	Abstract	duration		us-gaap:SegmentReportingAbstract
2	us-gaap:ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable (terseLabel)	Table	duration		us-gaap:ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable
3	srt:StatementGeographicalAxis (terseLabel)	Axis	duration		srt:StatementGeographicalAxis
4	srt:SegmentGeographicalDomain (terseLabel)	Member	duration		srt:SegmentGeographicalDomain
5	country:US (terseLabel)	Member	duration		country:US
6	us-gaap:NonUsMember (terseLabel)	Member	duration		us-gaap:NonUsMember
7	us-gaap:RevenuesFromExternalCustomersAndLongLivedAssetsLineItems (terseLabel)	LineItems	duration		us-gaap:RevenuesFromExternalCustomersAndLongLivedAssetsLineItems
8	us-gaap:AssetsNoncurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AssetsNoncurrent

Model Structure
Network	2431401 - Schedule - Schedule II: Valuation and Qualifying Accounts (Details) (http://www.google.com/role/ScheduleIiValuationAndQualifyingAccountsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]	Abstract	duration		srt:ValuationAndQualifyingAccountsAbstract
2	srt:ValuationAndQualifyingAccountsDisclosureTable (terseLabel)	Table	duration		srt:ValuationAndQualifyingAccountsDisclosureTable
3	us-gaap:ValuationAllowancesAndReservesTypeAxis (terseLabel)	Axis	duration		us-gaap:ValuationAllowancesAndReservesTypeAxis
4	us-gaap:ValuationAllowancesAndReservesDomain (terseLabel)	Member	duration		us-gaap:ValuationAllowancesAndReservesDomain
5	us-gaap:AllowanceForCreditLossMember (terseLabel)	Member	duration		us-gaap:AllowanceForCreditLossMember
6	srt:ValuationAndQualifyingAccountsDisclosureLineItems (terseLabel)	LineItems	duration		srt:ValuationAndQualifyingAccountsDisclosureLineItems
7	us-gaap:MovementInValuationAllowancesAndReservesRollForward (terseLabel)	Abstract	duration		us-gaap:MovementInValuationAllowancesAndReservesRollForward
8	us-gaap:ValuationAllowancesAndReservesBalance (periodStartLabel)	Concept (Monetary)	instant	credit	us-gaap:ValuationAllowancesAndReservesBalance
9	us-gaap:ValuationAllowancesAndReservesChargedToCostAndExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:ValuationAllowancesAndReservesChargedToCostAndExpense
10	us-gaap:ValuationAllowancesAndReservesDeductions (negatedLabel)	Concept (Monetary)	duration	debit	us-gaap:ValuationAllowancesAndReservesDeductions
11	Balance at End of Year	Concept (Monetary)	instant	credit	us-gaap:ValuationAllowancesAndReservesBalance

Fact Tables

The colours used for the fact values are significant, and have the following meanings:

Reported facts that have been checked by consistency rules are in green
derived (imputed) facts are in blue
inconsistent facts in red
...and the rest (reported but unckecked) are either in gray (if some rule failed to execute) or black (if no rules exist for the fact's concept)

Fact Table
Network	0001000 - Document - Document and Entity Information (http://www.google.com/role/DocumentAndEntityInformation)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Amendment Flag	false
2	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Current Fiscal Year End Date	--12-31
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Document Fiscal Period Focus	FY
4	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Document Fiscal Year Focus	2018
5	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Document Period End Date	2018-12-31
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Document Type	10-K
7	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Entity Central Index Key	0001652044
8	0001652044 (http://www.sec.gov/CIK)	2019-01-31	goog:CapitalClassCMember (label)	Entity Common Stock, Shares Outstanding	349291348	xbrli:shares	INF
9	0001652044 (http://www.sec.gov/CIK)	2019-01-31	Common Class A [Member]	Entity Common Stock, Shares Outstanding	299360029	xbrli:shares	INF
10	0001652044 (http://www.sec.gov/CIK)	2019-01-31	Common Class B [Member]	Entity Common Stock, Shares Outstanding	46535019	xbrli:shares	INF
11	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Entity Current Reporting Status	Yes
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Entity Emerging Growth Company	false
13	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Entity Filer Category	Large Accelerated Filer
14	0001652044 (http://www.sec.gov/CIK)	2018-06-29	Class of Stock [Domain]	Entity Public Float	680000000000	iso4217:USD	-8
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Entity Registrant Name	Alphabet Inc.
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Entity Shell Company	false
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Entity Small Business	false
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Entity Voluntary Filers	No
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Entity Well-known Seasoned Issuer	Yes
20	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Trading Symbol	GOOG, GOOGL

Fact Table
Network	1001000 - Statement - CONSOLIDATED BALANCE SHEETS (http://www.google.com/role/ConsolidatedBalanceSheets)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	goog:AccruedRevenueShare (label)	3975000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:AccruedRevenueShare (label)	4592000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Accounts Payable, Current	3137000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Accounts Payable, Current	4378000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Accounts Receivable, Net, Current	18336000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Accounts Receivable, Net, Current	20838000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Accrued Income Taxes, Current	881000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Accrued Income Taxes, Current	69000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Accrued Income Taxes, Noncurrent	12812000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Accrued Income Taxes, Noncurrent	11327000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Accrued Liabilities, Current	10177000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Accrued Liabilities, Current	16958000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Accumulated Other Comprehensive Income (Loss), Net of Tax	-992000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Accumulated Other Comprehensive Income (Loss), Net of Tax	-2306000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Assets	197295000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Assets	232792000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Assets, Current	124308000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Assets, Current	135676000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2015-12-31	null	Cash and Cash Equivalents, at Carrying Value	16549000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2016-12-31	null	Cash and Cash Equivalents, at Carrying Value	12918000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Cash and Cash Equivalents, at Carrying Value	10715000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Cash and Cash Equivalents, at Carrying Value	16701000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Cash, Cash Equivalents, and Short-term Investments	101871000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Cash, Cash Equivalents, and Short-term Investments	109140000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Commitments and Contingencies	null	iso4217:USD
26	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Commitments and Contingencies	null	iso4217:USD
27	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Common Stocks, Including Additional Paid in Capital	40247000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Common Stocks, Including Additional Paid in Capital	45049000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Contract with Customer, Liability, Current	1432000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Contract with Customer, Liability, Current	1784000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Contract with Customer, Liability, Noncurrent	340000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Contract with Customer, Liability, Noncurrent	396000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value	0	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value	0	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Income Tax Assets, Net	680000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Income Tax Assets, Net	737000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Income Tax Liabilities, Net	430000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Income Tax Liabilities, Net	1264000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Employee-related Liabilities, Current	4581000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Employee-related Liabilities, Current	6839000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2016-12-31	null	Goodwill	16468000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Goodwill	16747000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Goodwill	17888000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Income Taxes Receivable, Current	369000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Income Taxes Receivable, Current	355000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Intangible Assets, Net (Excluding Goodwill)	2692000000	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Intangible Assets, Net (Excluding Goodwill)	2220000000	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Inventory, Net	749000000	iso4217:USD	-6
49	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Inventory, Net	1107000000	iso4217:USD	-6
50	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Liabilities	44793000000	iso4217:USD	-6
51	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Liabilities	55164000000	iso4217:USD	-6
52	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Liabilities and Equity	197295000000	iso4217:USD	-6
53	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Liabilities and Equity	232792000000	iso4217:USD	-6
54	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Liabilities, Current	24183000000	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Liabilities, Current	34620000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Long-term Debt and Capital Lease Obligations	3969000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt and Capital Lease Obligations	4012000000	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Marketable Securities, Current	91156000000	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Marketable Securities, Current	92439000000	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Other Assets, Current	2983000000	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Other Assets, Current	4236000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Other Assets, Noncurrent	2672000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Other Assets, Noncurrent	2693000000	iso4217:USD	-6
64	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Other Liabilities, Noncurrent	3059000000	iso4217:USD	-6
65	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Other Liabilities, Noncurrent	3545000000	iso4217:USD	-6
66	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Other Long-term Investments	7813000000	iso4217:USD	-6
67	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Other Long-term Investments	13859000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Property, Plant and Equipment, Net	42383000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Property, Plant and Equipment, Net	59719000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Retained Earnings (Accumulated Deficit)	113247000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Retained Earnings (Accumulated Deficit)	134885000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2015-12-31	null	Stockholders' Equity Attributable to Parent	120331000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2016-12-31	null	Stockholders' Equity Attributable to Parent	139036000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Stockholders' Equity Attributable to Parent	152502000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Stockholders' Equity Attributable to Parent	177628000000	iso4217:USD	-6

Fact Table
Network	1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) (http://www.google.com/role/ConsolidatedBalanceSheetsParenthetical)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Allowance for Doubtful Accounts Receivable, Current	674000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Allowance for Doubtful Accounts Receivable, Current	729000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Common Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
4	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:CapitalClassCMember (label)	Common Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Class A [Member]	Common Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
6	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Class B [Member]	Common Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Common Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:CapitalClassCMember (label)	Common Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
9	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class A [Member]	Common Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
10	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class B [Member]	Common Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Common Stock, Shares Authorized	15000000000	xbrli:shares	INF
12	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:CapitalClassCMember (label)	Common Stock, Shares Authorized	3000000000	xbrli:shares	INF
13	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Class A [Member]	Common Stock, Shares Authorized	9000000000	xbrli:shares	INF
14	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Class B [Member]	Common Stock, Shares Authorized	3000000000	xbrli:shares	INF
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Common Stock, Shares Authorized	15000000000	xbrli:shares	INF
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:CapitalClassCMember (label)	Common Stock, Shares Authorized	3000000000	xbrli:shares	INF
17	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class A [Member]	Common Stock, Shares Authorized	9000000000	xbrli:shares	INF
18	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class B [Member]	Common Stock, Shares Authorized	3000000000	xbrli:shares	INF
19	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Common Stock, Shares, Issued	694783000	xbrli:shares	-3
20	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:CapitalClassCMember (label)	Common Stock, Shares, Issued	349341000	xbrli:shares	-3
21	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Class A [Member]	Common Stock, Shares, Issued	298470000	xbrli:shares	-3
22	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Class B [Member]	Common Stock, Shares, Issued	46972000	xbrli:shares	-3
23	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Common Stock, Shares, Issued	695556000	xbrli:shares	-3
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:CapitalClassCMember (label)	Common Stock, Shares, Issued	349678000	xbrli:shares	-3
25	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class A [Member]	Common Stock, Shares, Issued	299242000	xbrli:shares	-3
26	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class B [Member]	Common Stock, Shares, Issued	46636000	xbrli:shares	-3
27	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Common Stock, Shares, Outstanding	694783000	xbrli:shares	-3
28	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:CapitalClassCMember (label)	Common Stock, Shares, Outstanding	349341000	xbrli:shares	-3
29	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Class A [Member]	Common Stock, Shares, Outstanding	298470000	xbrli:shares	-3
30	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Class B [Member]	Common Stock, Shares, Outstanding	46972000	xbrli:shares	-3
31	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Common Stock, Shares, Outstanding	695556000	xbrli:shares	-3
32	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:CapitalClassCMember (label)	Common Stock, Shares, Outstanding	349678000	xbrli:shares	-3
33	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class A [Member]	Common Stock, Shares, Outstanding	299242000	xbrli:shares	-3
34	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class B [Member]	Common Stock, Shares, Outstanding	46636000	xbrli:shares	-3
35	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Preferred Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
36	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Preferred Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
37	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Preferred Stock, Shares Authorized	100000000	xbrli:shares	INF
38	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Preferred Stock, Shares Authorized	100000000	xbrli:shares	INF
39	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Preferred Stock, Shares Issued	0	xbrli:shares	INF
40	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Preferred Stock, Shares Issued	0	xbrli:shares	INF
41	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF
42	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF

Fact Table
Network	1002000 - Statement - CONSOLIDATED STATEMENTS OF INCOME (http://www.google.com/role/ConsolidatedStatementsOfIncome)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Cost of Revenue	35138000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Cost of Revenue	45583000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Cost of Revenue	59549000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Costs and Expenses	66556000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Costs and Expenses	84709000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Costs and Expenses	110498000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Earnings Per Share, Basic	28.32	iso4217:USD/xbrli:shares	2
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Earnings Per Share, Basic	18.27	iso4217:USD/xbrli:shares	2
9	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Earnings Per Share, Basic	44.22	iso4217:USD/xbrli:shares	2
10	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Earnings Per Share, Diluted	27.85	iso4217:USD/xbrli:shares	2
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Earnings Per Share, Diluted	18.0	iso4217:USD/xbrli:shares	2
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Earnings Per Share, Diluted	43.7	iso4217:USD/xbrli:shares	2
13	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	General and Administrative Expense	6985000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	General and Administrative Expense	6872000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	General and Administrative Expense	8126000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	24150000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	27193000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	34913000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	4672000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Tax Expense (Benefit)	14531000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Tax Expense (Benefit)	4177000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Loss Contingency, Loss in Period	0	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Loss Contingency, Loss in Period	2736000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Loss Contingency, Loss in Period	5071000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Income (Loss) Attributable to Parent	19478000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	12662000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	30736000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Nonoperating Income (Expense)	434000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Nonoperating Income (Expense)	1047000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Nonoperating Income (Expense)	8592000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Operating Income (Loss)	23716000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Operating Income (Loss)	26146000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Operating Income (Loss)	26321000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Research and Development Expense	13948000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Research and Development Expense	16625000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Research and Development Expense	21419000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Selling and Marketing Expense	10485000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Selling and Marketing Expense	12893000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Selling and Marketing Expense	16333000000	iso4217:USD	-6

Fact Table
Network	1003000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (http://www.google.com/role/ConsolidatedStatementsOfComprehensiveIncome)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	18950000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	14072000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	29520000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Income (Loss) Attributable to Parent	19478000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	12662000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	30736000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	-93000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	412000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	-823000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	164000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	-545000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	388000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	515000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	-638000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	290000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	351000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	-93000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	-98000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	-599000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	1543000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	-781000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Net of Tax	-528000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Net of Tax	1410000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Net of Tax	-1216000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	-221000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	-105000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	911000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax	-314000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax	307000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax	88000000	iso4217:USD	-6

Fact Table
Network	1003501 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (http://www.google.com/role/ConsolidatedStatementsOfComprehensiveIncomeParenthetical)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	0	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	0	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	-156000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	-64000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	247000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	103000000	iso4217:USD	-6

Fact Table
Network	1004000 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (http://www.google.com/role/ConsolidatedStatementsOfStockholdersEquity)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	goog:TaxWithholdingRelatedToVestingOfRestrictedStockUnits (label)	3597000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Stock Including Additional Paid in Capital [Member]	goog:TaxWithholdingRelatedToVestingOfRestrictedStockUnits (label)	3597000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	goog:TaxWithholdingRelatedToVestingOfRestrictedStockUnits (label)	4373000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Stock Including Additional Paid in Capital [Member]	goog:TaxWithholdingRelatedToVestingOfRestrictedStockUnits (label)	4373000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	goog:TaxWithholdingRelatedToVestingOfRestrictedStockUnits (label)	4782000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Stock Including Additional Paid in Capital [Member]	goog:TaxWithholdingRelatedToVestingOfRestrictedStockUnits (label)	4782000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	6700000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Stock Including Additional Paid in Capital [Member]	Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	6700000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	7694000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Stock Including Additional Paid in Capital [Member]	Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	7694000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	9353000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Stock Including Additional Paid in Capital [Member]	Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	9353000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2015-12-31	AOCI Attributable to Parent [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	0	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Common Stock Including Additional Paid in Capital [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	180000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-133000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-12-31	AOCI Attributable to Parent [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-98000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-599000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-01-01	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	98000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	19478000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Retained Earnings [Member]	Net Income (Loss) Attributable to Parent	19478000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	12662000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Retained Earnings [Member]	Net Income (Loss) Attributable to Parent	12662000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	30736000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Retained Earnings [Member]	Net Income (Loss) Attributable to Parent	30736000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Noncontrolling Interest, Increase from Sale of Parent Equity Interest	722000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Stock Including Additional Paid in Capital [Member]	Noncontrolling Interest, Increase from Sale of Parent Equity Interest	722000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Noncontrolling Interest, Increase from Sale of Parent Equity Interest	659000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Stock Including Additional Paid in Capital [Member]	Noncontrolling Interest, Increase from Sale of Parent Equity Interest	659000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Other Comprehensive Income (Loss), Net of Tax	-528000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	AOCI Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax	-528000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Other Comprehensive Income (Loss), Net of Tax	1410000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	AOCI Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax	1410000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Other Comprehensive Income (Loss), Net of Tax	-1216000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	AOCI Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax	-1216000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Common Stock Including Additional Paid in Capital [Member]	Shares, Issued	687348000	xbrli:shares	-3
40	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Common Stock Including Additional Paid in Capital [Member]	Shares, Issued	691293000	xbrli:shares	-3
41	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Stock Including Additional Paid in Capital [Member]	Shares, Issued	694783000	xbrli:shares	-3
42	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Stock Including Additional Paid in Capital [Member]	Shares, Issued	695556000	xbrli:shares	-3
43	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Issued During Period, Shares, New Issues	9106000	xbrli:shares	-3
44	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Issued During Period, Shares, New Issues	8652000	xbrli:shares	-3
45	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Issued During Period, Shares, New Issues	8975000	xbrli:shares	-3
46	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Stock Issued During Period, Value, New Issues	298000000	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Issued During Period, Value, New Issues	298000000	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Stock Issued During Period, Value, New Issues	212000000	iso4217:USD	-6
49	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Issued During Period, Value, New Issues	212000000	iso4217:USD	-6
50	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Stock Issued During Period, Value, New Issues	148000000	iso4217:USD	-6
51	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Repurchased and Retired During Period, Shares	5161000	xbrli:shares	-3
52	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Repurchased and Retired During Period, Shares	5162000	xbrli:shares	-3
53	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Repurchased and Retired During Period, Shares	8202000	xbrli:shares	-3
54	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Stock Repurchased and Retired During Period, Value	3693000000	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Repurchased and Retired During Period, Value	256000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Retained Earnings [Member]	Stock Repurchased and Retired During Period, Value	3437000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Stock Repurchased and Retired During Period, Value	4846000000	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Repurchased and Retired During Period, Value	315000000	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Retained Earnings [Member]	Stock Repurchased and Retired During Period, Value	4531000000	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Stock Repurchased and Retired During Period, Value	9075000000	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Stock Including Additional Paid in Capital [Member]	Stock Repurchased and Retired During Period, Value	576000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Retained Earnings [Member]	Stock Repurchased and Retired During Period, Value	8499000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	120331000000	iso4217:USD	-6
64	0001652044 (http://www.sec.gov/CIK)	2015-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-1874000000	iso4217:USD	-6
65	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Common Stock Including Additional Paid in Capital [Member]	Stockholders' Equity Attributable to Parent	32982000000	iso4217:USD	-6
66	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	89223000000	iso4217:USD	-6
67	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	139036000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2016-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-2402000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Common Stock Including Additional Paid in Capital [Member]	Stockholders' Equity Attributable to Parent	36307000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	105131000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	152502000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2017-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-992000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Common Stock Including Additional Paid in Capital [Member]	Stockholders' Equity Attributable to Parent	40247000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	113247000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	177628000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2018-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-2306000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Stock Including Additional Paid in Capital [Member]	Stockholders' Equity Attributable to Parent	45049000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	134885000000	iso4217:USD	-6

Fact Table
Network	1005000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (http://www.google.com/role/ConsolidatedStatementsOfCashFlows)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	goog:AcquisitionsNetOfCashAcquiredAndPurchasesOfIntangibleAndOtherAssets (label)	986000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	goog:AcquisitionsNetOfCashAcquiredAndPurchasesOfIntangibleAndOtherAssets (label)	287000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:AcquisitionsNetOfCashAcquiredAndPurchasesOfIntangibleAndOtherAssets (label)	1491000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	goog:AmortizationAndImpairmentOfIntangibleAssets (label)	877000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	goog:AmortizationAndImpairmentOfIntangibleAssets (label)	812000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:AmortizationAndImpairmentOfIntangibleAssets (label)	871000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	goog:DepreciationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	5267000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	goog:DepreciationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	6103000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:DepreciationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	8164000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	goog:IncreaseDecreaseInAccruedRevenueShare (label)	593000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	goog:IncreaseDecreaseInAccruedRevenueShare (label)	955000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:IncreaseDecreaseInAccruedRevenueShare (label)	483000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	goog:NetProceedsPaymentsRelatedToStockBasedAwardActivities (label)	3304000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	goog:NetProceedsPaymentsRelatedToStockBasedAwardActivities (label)	4166000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:NetProceedsPaymentsRelatedToStockBasedAwardActivities (label)	4993000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2015-12-31	null	Cash and Cash Equivalents, at Carrying Value	16549000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2016-12-31	null	Cash and Cash Equivalents, at Carrying Value	12918000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Cash and Cash Equivalents, at Carrying Value	10715000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Cash and Cash Equivalents, at Carrying Value	16701000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Cash and Cash Equivalents, Period Increase (Decrease)	-3631000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Cash and Cash Equivalents, Period Increase (Decrease)	-2203000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Cash and Cash Equivalents, Period Increase (Decrease)	5986000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Debt and Equity Securities, Gain (Loss)	-73000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Debt and Equity Securities, Gain (Loss)	-37000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Debt and Equity Securities, Gain (Loss)	6650000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Deferred Income Taxes and Tax Credits	-38000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Deferred Income Taxes and Tax Credits	258000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Deferred Income Taxes and Tax Credits	778000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effect of Exchange Rate on Cash and Cash Equivalents	-170000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effect of Exchange Rate on Cash and Cash Equivalents	405000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effect of Exchange Rate on Cash and Cash Equivalents	-302000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Taxes Paid, Net	1643000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Taxes Paid, Net	6191000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Taxes Paid, Net	5671000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Accounts Payable	110000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Accounts Payable	731000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Accounts Payable	1067000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Accounts Receivable	2578000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Accounts Receivable	3768000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Accounts Receivable	2169000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Accrued Liabilities	1515000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Accrued Liabilities	4891000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Accrued Liabilities	8614000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Collateral Held under Securities Lending	2428000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Collateral Held under Securities Lending	0	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Collateral Held under Securities Lending	0	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Contract with Customer, Liability	223000000	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Contract with Customer, Liability	390000000	iso4217:USD	-6
49	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Contract with Customer, Liability	371000000	iso4217:USD	-6
50	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Income Taxes	3125000000	iso4217:USD	-6
51	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Income Taxes	8211000000	iso4217:USD	-6
52	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Income Taxes	-2251000000	iso4217:USD	-6
53	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Other Operating Assets	-312000000	iso4217:USD	-6
54	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Other Operating Assets	2164000000	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Other Operating Assets	1207000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Interest Paid, Excluding Capitalized Interest, Operating Activities	84000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Interest Paid, Excluding Capitalized Interest, Operating Activities	84000000	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Interest Paid, Excluding Capitalized Interest, Operating Activities	69000000	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Cash Provided by (Used in) Financing Activities	-8332000000	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Cash Provided by (Used in) Financing Activities	-8298000000	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Cash Provided by (Used in) Financing Activities	-13179000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Cash Provided by (Used in) Investing Activities	-31165000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Cash Provided by (Used in) Investing Activities	-31401000000	iso4217:USD	-6
64	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Cash Provided by (Used in) Investing Activities	-28504000000	iso4217:USD	-6
65	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Cash Provided by (Used in) Operating Activities	36036000000	iso4217:USD	-6
66	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Cash Provided by (Used in) Operating Activities	37091000000	iso4217:USD	-6
67	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Cash Provided by (Used in) Operating Activities	47971000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Income (Loss) Attributable to Parent	19478000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	12662000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	30736000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Noncash Income (Expense)	-376000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Noncash Income (Expense)	-294000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Noncash Income (Expense)	189000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Payments for Repurchase of Common Stock	3693000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Payments for Repurchase of Common Stock	4846000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Payments for Repurchase of Common Stock	9075000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Payments to Acquire Marketable Securities	84509000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Payments to Acquire Marketable Securities	92195000000	iso4217:USD	-6
79	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Payments to Acquire Marketable Securities	50158000000	iso4217:USD	-6
80	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Payments to Acquire Other Investments	1109000000	iso4217:USD	-6
81	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Payments to Acquire Other Investments	1745000000	iso4217:USD	-6
82	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Payments to Acquire Other Investments	2073000000	iso4217:USD	-6
83	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Payments to Acquire Property, Plant, and Equipment	10212000000	iso4217:USD	-6
84	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Payments to Acquire Property, Plant, and Equipment	13184000000	iso4217:USD	-6
85	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Payments to Acquire Property, Plant, and Equipment	25139000000	iso4217:USD	-6
86	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Proceeds from Collection of Notes Receivable	0	iso4217:USD	-6
87	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Proceeds from Collection of Notes Receivable	1419000000	iso4217:USD	-6
88	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Proceeds from Collection of Notes Receivable	0	iso4217:USD	-6
89	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Proceeds from Debt, Net of Issuance Costs	8729000000	iso4217:USD	-6
90	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Proceeds from Debt, Net of Issuance Costs	4291000000	iso4217:USD	-6
91	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Proceeds from Debt, Net of Issuance Costs	6766000000	iso4217:USD	-6
92	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Proceeds from Noncontrolling Interests	0	iso4217:USD	-6
93	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Proceeds from Noncontrolling Interests	800000000	iso4217:USD	-6
94	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Proceeds from Noncontrolling Interests	950000000	iso4217:USD	-6
95	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Proceeds from (Payments for) Securities Purchased under Agreements to Resell	450000000	iso4217:USD	-6
96	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Proceeds from (Payments for) Securities Purchased under Agreements to Resell	0	iso4217:USD	-6
97	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Proceeds from (Payments for) Securities Purchased under Agreements to Resell	0	iso4217:USD	-6
98	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Proceeds from Sale and Maturity of Marketable Securities	66895000000	iso4217:USD	-6
99	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Proceeds from Sale and Maturity of Marketable Securities	73959000000	iso4217:USD	-6
100	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Proceeds from Sale and Maturity of Marketable Securities	48507000000	iso4217:USD	-6
101	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Proceeds from Sale and Maturity of Other Investments	494000000	iso4217:USD	-6
102	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Proceeds from Sale and Maturity of Other Investments	533000000	iso4217:USD	-6
103	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Proceeds from Sale and Maturity of Other Investments	1752000000	iso4217:USD	-6
104	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Proceeds from Sale of Property, Plant, and Equipment	240000000	iso4217:USD	-6
105	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Proceeds from Sale of Property, Plant, and Equipment	99000000	iso4217:USD	-6
106	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Proceeds from Sale of Property, Plant, and Equipment	98000000	iso4217:USD	-6
107	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Repayments of Debt and Capital Lease Obligations	10064000000	iso4217:USD	-6
108	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Repayments of Debt and Capital Lease Obligations	4377000000	iso4217:USD	-6
109	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Repayments of Debt and Capital Lease Obligations	6827000000	iso4217:USD	-6
110	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Share-based Compensation	6700000000	iso4217:USD	-8
111	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Share-based Compensation	6703000000	iso4217:USD	-6
112	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Share-based Compensation	7679000000	iso4217:USD	-6
113	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Share-based Compensation	7700000000	iso4217:USD	-8
114	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Share-based Compensation	9353000000	iso4217:USD	-6

Fact Table
Network	2101100 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (http://www.google.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPolicies)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Business Description and Accounting Policies [Text Block]

Nature of Operations and Summary of Significant Accounting Policies

Nature of Operations

Google was incorporated in California in September 1998 and re-incorporated in the State of Delaware in August 2003. In 2015, we implemented a holding company reorganization, and as a result, Alphabet Inc. (Alphabet) became the successor issuer to Google.

We generate revenues primarily by delivering relevant, cost-effective online advertising.

Basis of Consolidation

The consolidated financial statements of Alphabet include the accounts of Alphabet and entities consolidated under the variable interest and voting models. Noncontrolling interests are not presented separately as the amounts are not material. All intercompany balances and transactions have been eliminated.

Use of Estimates

Preparation of consolidated financial statements in conformity with generally accepted accounting principles in the United States (GAAP) requires us to make estimates and assumptions that affect the amounts reported and disclosed in the financial statements and the accompanying notes. Actual results could differ materially from these estimates. On an ongoing basis, we evaluate our estimates, including those related to the bad debt allowance, sales allowances, fair values of financial instruments, intangible assets and goodwill, useful lives of intangible assets and property and equipment, income taxes, and contingent liabilities, among others. We base our estimates on assumptions, both historical and forward looking, that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.

Revenue Recognition

We recognize revenues when we transfer control of promised goods or services to our customers in an amount that reflects the consideration to which we expect to be entitled to in exchange for those goods or services.

See Note 2 for further discussion on Revenues.

Cost of Revenues

Cost of revenues consists of TAC and other costs of revenues.

TAC represents the amounts paid to Google Network Members primarily for ads displayed on their properties and amounts paid to our distribution partners who make available our search access points and services. Our distribution partners include browser providers, mobile carriers, original equipment manufacturers, and software developers.

Other costs of revenues (which is the cost of revenues excluding TAC) include the following:


•	Content acquisition costs primarily related to payments to content providers from whom we license video and other content for distribution on YouTube and Google Play (we pay fees to these content providers based on revenues generated or a flat fee);


•	Expenses associated with our data centers and other operations (including bandwidth, compensation expense (including SBC), depreciation, energy, and other equipment costs); and


•	Inventory related costs for hardware we sell.

Stock-based Compensation

Stock-based compensation primarily consists of Alphabet restricted stock units (RSUs). RSUs are equity classified and measured at the fair market value of the underlying stock at the grant date. We recognize RSU expense using the straight-line attribution method over the requisite service period and account for forfeitures as they occur.

For RSUs, shares are issued on the vesting dates net of the applicable statutory tax withholding to be paid by us on behalf of our employees. As a result, fewer shares are issued than the number of RSUs outstanding. We record a liability for the tax withholding to be paid by us as a reduction to additional paid-in capital.

Additionally, stock-based compensation includes other types of stock-based awards that may be settled in the stock of certain of our Other Bets or in cash. Awards that are liability classified are remeasured at fair value through settlement or maturity. The fair value of such awards is based on the valuation of equity of the respective Other Bet.

Performance Fees

We have compensation arrangements with payouts based on realized investment returns. We recognize compensation expense based on the estimated payouts.

Certain Risks and Concentrations

Our revenues are primarily derived from online advertising, the market for which is highly competitive and rapidly changing. In addition, our revenues are generated from a multitude of vertical market segments in countries around the world. Significant changes in this industry or changes in customer buying or advertiser spending behavior could adversely affect our operating results.

We are subject to concentrations of credit risk principally from cash and cash equivalents, marketable securities, foreign exchange contracts, and accounts receivable. Cash equivalents and marketable securities consist primarily of time deposits, money market and other funds, highly liquid debt instruments of the U.S. government and its agencies, debt instruments issued by foreign governments, debt instruments issued by municipalities in the U.S., corporate debt securities, mortgage-backed securities, and asset-backed securities. Foreign exchange contracts are transacted with various financial institutions with high credit standing. Accounts receivable are typically unsecured and are derived from revenues earned from customers located around the world. We perform ongoing evaluations to determine customer credit and we limit the amount of credit we extend. We generally do not require collateral from our customers. We maintain reserves for estimated credit losses and these losses have generally been within our expectations.

No individual customer or groups of affiliated customers represented more than 10% of our revenues in 2016, 2017, or 2018. In 2016, 2017, and 2018, we generated approximately 47%, 47%, and 46% of our revenues, respectively, from customers based in the U.S. See Note 2 for further details.

Fair Value of Financial Instruments

Our financial assets and liabilities that are measured at fair value on a recurring basis include cash equivalents, marketable securities, derivative contracts, and non-marketable debt securities. Our financial assets that are measured at fair value on a nonrecurring basis include non-marketable equity securities measured at fair value when observable price changes are identified or when non-marketable equity securities are impaired. Other financial assets and liabilities are carried at cost with fair value disclosed, if required.

Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or a liability. Assets and liabilities recorded at fair value are measured and classified in accordance with a three-tier fair value hierarchy based on the observability of the inputs available in the market used to measure fair value:

Level 1 - Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 - Inputs that are based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant inputs are observable in the market or can be derived from observable market data. Where applicable, these models project future cash flows and discount the future amounts to a present value using market-based observable inputs including interest rate curves, foreign exchange rates, and credit ratings.

Level 3 - Unobservable inputs that are supported by little or no market activities.

The fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

Cash, Cash Equivalents, and Marketable Securities

We invest all excess cash primarily in government bonds, corporate debt securities, mortgage-backed and asset-backed securities, time deposits, and money market funds.

We classify all investments that are readily convertible to known amounts of cash and have stated maturities of three months or less from the date of purchase as cash equivalents and those with stated maturities of greater than three months as marketable securities.

We determine the appropriate classification of our investments in marketable securities at the time of purchase and reevaluate such designation at each balance sheet date. We have classified and accounted for our marketable debt securities as available-for-sale. After consideration of our risk versus reward objectives, as well as our liquidity requirements, we may sell these debt securities prior to their stated maturities. As we view these securities as available to support current operations, we classify highly liquid securities with maturities beyond 12 months as current assets under the caption marketable securities on the Consolidated Balance Sheets. We carry these securities at fair value, and report the unrealized gains and losses, net of taxes, as a component of stockholders’ equity, except for unrealized losses determined to be other-than-temporary, which we record within other income (expense), net. We determine any realized gains or losses on the sale of marketable debt securities on a specific identification method, and we record such gains and losses as a component of other income (expense), net.

Non-Marketable Investments

We account for non-marketable equity investments through which we exercise significant influence but do not have control over the investee under the equity method. Beginning on January 1, 2018, our non-marketable equity securities not accounted for under the equity method are either carried at fair value or under the measurement alternative upon the adoption of ASU 2016-01. Under the measurement alternative, the carrying value is measured at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments of the same issuer. Adjustments are determined primarily based on a market approach as of the transaction date. We classify our non-marketable investments as non-current assets on the Consolidated Balance Sheets as those investments do not have stated contractual maturity dates.

We account for our non-marketable investments that meet the definition of a debt security as available-for-sale securities.

Impairment of Investments

We periodically review our debt and equity investments for impairment. For debt securities we consider the duration, severity and the reason for the decline in security value; whether it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis; or if the amortized cost basis cannot be recovered as a result of credit losses. If any impairment is considered other-than-temporary, we will write down the security to its fair value and record the corresponding charge as other income (expense), net. For equity securities we consider impairment indicators such as negative changes in industry and market conditions, financial performance, business prospects, and other relevant events and factors. If indicators exist and the fair value of the security is below the carrying amount, we write down the security to fair value.

Variable Interest Entities

We determine at the inception of each arrangement whether an entity in which we have made an investment or in which we have other variable interests in is considered a variable interest entity (VIE). We consolidate VIEs when we are the primary beneficiary. The primary beneficiary of a VIE is the party that meets both of the following criteria: (1) has the power to make decisions that most significantly affect the economic performance of the VIE; and (2) has the obligation to absorb losses or the right to receive benefits that in either case could potentially be significant to the VIE. Periodically, we assess whether any changes in our interest or relationship with the entity affect our determination of whether the entity is still a VIE and, if so, whether we are the primary beneficiary. If we are not the primary beneficiary in a VIE, we account for the investment or other variable interests in a VIE in accordance with applicable GAAP.

Accounts Receivable

We record accounts receivable at the invoiced amount. We maintain an allowance for doubtful accounts to reserve for potentially uncollectible receivables. We review the accounts receivable by amounts due from customers that are past due to identify specific customers with known disputes or collectability issues. In determining the amount of the reserve, we make judgments about the creditworthiness of significant customers based on ongoing credit evaluations.

Property and Equipment

Property and equipment includes the following categories: land and buildings, information technology assets, construction in progress, leasehold improvements, and furniture and fixtures. Land and buildings include land, offices, data centers and related building improvements. Information technology assets include servers and network equipment. We account for property and equipment at cost less accumulated depreciation. We compute depreciation using the straight-line method over the estimated useful lives of the assets. We depreciate buildings over periods of seven to 25 years. We generally depreciate information technology assets over periods of three to five years (specifically, three years for servers and three to five years for network equipment).

We depreciate leasehold improvements over the shorter of the remaining lease term or the estimated useful lives of the assets. Construction in progress is the construction or development of property and equipment that have not yet been placed in service for our intended use. Depreciation for equipment, buildings, and leasehold improvements commences once they are ready for our intended use. Land is not depreciated.

Inventory

Inventory consists primarily of finished goods and is stated at the lower of cost and net realizable value. Cost is computed using the first-in, first-out method.

Software Development Costs

We expense software development costs, including costs to develop software products or the software component of products to be sold, leased, or marketed to external users, before technological feasibility is reached. Technological feasibility is typically reached shortly before the release of such products and as a result, development costs that meet the criteria for capitalization were not material for the periods presented.

Software development costs also include costs to develop software to be used solely to meet internal needs and cloud based applications used to deliver our services. We capitalize development costs related to these software applications once the preliminary project stage is complete and it is probable that the project will be completed and the software will be used to perform the function intended. Costs capitalized for developing such software applications were not material for the periods presented.

Business Combinations

We include the results of operations of the businesses that we acquire as of the acquisition date. We allocate the purchase price of the acquisitions to the assets acquired and liabilities assumed based on their estimated fair values. The excess of the purchase price over the fair values of identifiable assets and liabilities is recorded as goodwill. Acquisition-related expenses are recognized separately from the business combination and are expensed as incurred.

Long-Lived Assets, Goodwill and Other Acquired Intangible Assets

We review property and equipment, long-term prepayments and intangible assets, excluding goodwill, for impairment when events or changes in circumstances indicate the carrying amount may not be recoverable. We measure recoverability of these assets by comparing the carrying amounts to the future undiscounted cash flows that the assets or the asset group are expected to generate. If the carrying value of the assets are not recoverable, the impairment recognized is measured as the amount by which the carrying value of the asset exceeds its fair value. Impairments were not material for the periods presented.

We allocate goodwill to reporting units based on the expected benefit from the business combination. We evaluate our reporting units when changes in our operating structure occur, and if necessary, reassign goodwill using a relative fair value allocation approach. We test our goodwill for impairment at least annually, or more frequently if events or changes in circumstances indicate that the asset may be impaired. Goodwill impairments were not material for the periods presented.

Intangible assets with definite lives are amortized over their estimated useful lives. We amortize intangible assets on a straight-line basis with definite lives over periods ranging from one to twelve years.

Income Taxes

We account for income taxes using the asset and liability method, under which we recognize the amount of taxes payable or refundable for the current year and deferred tax assets and liabilities for the future tax consequences of events that have been recognized in our financial statements or tax returns. We measure current and deferred tax assets and liabilities based on provisions of enacted tax law. We evaluate the realization of our deferred tax assets based on all available evidence and establish a valuation allowance to reduce deferred tax assets when it is more likely than not that they will not be realized.

We recognize the financial statement effects of a tax position when it is more likely than not that, based on technical merits, the position will be sustained upon examination. The tax benefits of the position recognized in the financial statements are then measured based on the largest amount of benefit that is greater than 50% likely to be realized upon settlement with a taxing authority. In addition, we recognize interest and penalties related to unrecognized tax benefits as a component of the income tax provision.

Foreign Currency

Generally, the functional currency of our international subsidiaries is the local currency. We translate the financial statements of these subsidiaries to U.S. dollars using month-end exchange rates for assets and liabilities, and average rates for the annual period derived from month-end exchange rates for revenues, costs, and expenses. We record translation gains and losses in accumulated other comprehensive income (AOCI) as a component of stockholders’ equity. We reflect net foreign exchange transaction gains and losses resulting from the conversion of the transaction currency to functional currency as a component of foreign currency exchange losses in other income (expense), net.

Advertising and Promotional Expenses

We expense advertising and promotional costs in the period in which they are incurred. For the years ended December 31, 2016, 2017 and 2018, advertising and promotional expenses totaled approximately $3.9 billion, $5.1 billion, and $6.4 billion, respectively.

Recent Accounting Pronouncements

Recently issued accounting pronouncements not yet adopted

In February 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2016-02 (Topic 842) "Leases." Topic 842 supersedes the lease requirements in Accounting Standards Codification (ASC) Topic 840, "Leases." Under Topic 842, lessees are required to recognize assets and liabilities on the balance sheet for most leases and provide enhanced disclosures. Leases will continue to be classified as either finance or operating. We will adopt Topic 842 effective January 1, 2019 using a modified retrospective method and will not restate comparative periods. As permitted under the transition guidance, we will carry forward the assessment of whether our contracts contain or are leases, classification of our leases and remaining lease terms. Based on our portfolio of leases as of December 31, 2018, approximately $9 billion of lease assets and liabilities will be recognized on our balance sheet upon adoption, primarily relating to real estate. We are substantially complete with our implementation efforts.

In June 2016, the FASB issued Accounting Standards Update No. 2016-13 (ASU 2016-13) "Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. ASU 2016-13 replaces the existing incurred loss impairment model with an expected loss model which requires the use of forward-looking information to calculate credit loss estimates. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. These changes will result in earlier recognition of credit losses. We will adopt ASU 2016-13 effective January 1, 2020. We are currently evaluating the effect of the adoption of ASU 2016-13 on our consolidated financial statements. The effect will largely depend on the composition and credit quality of our investment portfolio and the economic conditions at the time of adoption.

Recently adopted accounting pronouncements

In January 2016, the FASB issued Accounting Standards Update No. 2016-01 (ASU 2016-01) "Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," which amends various aspects of the recognition, measurement, presentation, and disclosure of financial instruments. We adopted ASU 2016-01 as of January 1, 2018 using the modified retrospective method for our marketable equity securities and the prospective method for our non-marketable equity securities. This resulted in a $98 million reclassification of net unrealized gains from AOCI to opening retained earnings. We have elected to use the measurement alternative for our non-marketable equity securities, defined as cost adjusted for changes from observable transactions for identical or similar investments of the same issuer, less impairment. The adoption of ASU 2016-01 increases the volatility of our other income (expense), net, as a result of the unrealized gain or loss from the remeasurement of our equity securities. For further information on unrealized gains from equity securities, see Note 3.

In October 2016, the FASB issued Accounting Standards Update No. 2016-16 (ASU 2016-16) "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory." ASU 2016-16 generally accelerates the recognition of income tax consequences for asset transfers between entities under common control. We adopted ASU 2016-16 as of January 1, 2018 using a modified retrospective transition method, resulting in a $701 million reclassification of prepaid income taxes related to asset transfers that occurred prior to adoption from other current and non-current assets to opening retained earnings.

Prior Period Reclassifications

Certain amounts in prior periods have been reclassified to conform with current period presentation.

Fact Table
Network	2102100 - Disclosure - Revenues (http://www.google.com/role/Revenues)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Revenue from Contract with Customer [Text Block]

Revenues

Adoption of ASC Topic 606, "Revenue from Contracts with Customers"

On January 1, 2017, we adopted Topic 606 using the modified retrospective method applied to those contracts which were not completed as of January 1, 2017. Results for reporting periods beginning after January 1, 2017 are presented under Topic 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting under Topic 605. The effect from the adoption of ASC 606 was not material to our financial statements.

Revenue Recognition

Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services.

The following table presents our revenues disaggregated by revenue source (in millions). Sales and usage-based taxes are excluded from revenues.



	Year Ended December 31,
	2016⁽¹⁾		2017		2018
Google properties	$	63,785	$	77,788	$	96,336
Google Network Members' properties	15,598		17,587		19,982
Google advertising revenues	79,383		95,375		116,318
Google other revenues	10,601		15,003		19,906
Other Bets revenues	288		477		595
Total revenues⁽²⁾	$	90,272	$	110,855	$	136,819


⁽¹⁾	As noted above, prior period amounts have not been adjusted under the modified retrospective method.


⁽²⁾	Revenues include hedging gains (losses) of $539 million, $(169) million, and $(138) million for the years ended December 31, 2016, 2017, and 2018, respectively, which do not represent revenues recognized from contracts with customers.

The following table presents our revenues disaggregated by geography, based on the addresses of our customers (in millions):



	Year Ended December 31,
	2016				2017				2018
United States	$	42,781	47	%	$	52,449	47	%	$	63,269	46	%
EMEA⁽¹⁾	30,304		34		36,046		33		44,567		33
APAC⁽¹⁾	12,559		14		16,235		15		21,374		15
Other Americas⁽¹⁾	4,628		5		6,125		5		7,609		6
Total revenues⁽²⁾	$	90,272	100	%	$	110,855	100	%	$	136,819	100	%


⁽¹⁾	Regions represent Europe, the Middle East, and Africa (EMEA); Asia-Pacific (APAC); and Canada and Latin America (Other Americas).


⁽²⁾	Revenues include hedging gains (losses) for the years ended December 31, 2016, 2017, and 2018.

Advertising Revenues

We generate revenues primarily by delivering advertising on Google properties and Google Network Members’ properties.

Google properties revenues consist primarily of advertising revenues generated on Google.com, the Google Search app, and other Google owned and operated properties like Gmail, Google Maps, Google Play, and YouTube.

Google Network Members’ properties revenues consist primarily of advertising revenues generated on Google Network Members’ properties.

Our customers generally purchase advertising inventory through Google Ads (formerly AdWords), Google Ad Manager as part of the Authorized Buyers marketplace (formerly DoubleClick AdExchange), and Google Marketing Platform (includes what was formerly DoubleClick Bid Manager), among others.

We offer advertising on a cost-per-click basis, which means that an advertiser pays us only when a user clicks on an ad on Google properties or Google Network Members' properties or when a user views certain YouTube engagement ads. For these customers, we recognize revenue each time a user clicks on the ad or when a user views the ad for a specified period of time.

We also offer advertising on other bases such as cost-per-impression, which means an advertiser pays us based on the number of times their ads are displayed on Google properties or Google Network Members’ properties. For these customers, we recognize revenue each time an ad is displayed.

For ads placed on Google Network Members’ properties, we evaluate whether we are the principal (i.e., report revenues on a gross basis) or agent (i.e., report revenues on a net basis). Generally, we report advertising revenues for ads placed on Google Network Members’ properties on a gross basis, that is, the amounts billed to our customers are recorded as revenues, and amounts paid to Google Network Members are recorded as cost of revenues. Where we are the principal, we control the advertising inventory before it is transferred to our customers. Our control is evidenced by our sole ability to monetize the advertising inventory before it is transferred to our customers, and is further supported by us being primarily responsible to our customers and having a level of discretion in establishing pricing.

Other Revenues

Google other revenues and Other Bets revenues consist primarily of revenues from:


•	Apps, in-app purchases, and digital content in the Google Play store;


•	Google Cloud offerings;


•	Hardware; and


•	Other miscellaneous products and services.

As it relates to Google other revenues, the most significant judgment is determining whether we are the principal or agent for app sales and in-app purchases through the Google Play store. We report revenues from these transactions on a net basis because our performance obligation is to facilitate a transaction between app developers and end users, for which we earn a commission. Consequently, the portion of the gross amount billed to end users that is remitted to app developers is not reflected as revenues.

Arrangements with Multiple Performance Obligations

Our contracts with customers may include multiple performance obligations. For such arrangements, we allocate revenues to each performance obligation based on its relative standalone selling price. We generally determine standalone selling prices based on the prices charged to customers or using expected cost plus margin.

Customer Incentives and Credits

Certain customers may receive cash-based incentives or credits, which are accounted for as variable consideration. We estimate these amounts based on the expected amount to be provided to customers and reduce revenues recognized. We believe that there will not be significant changes to our estimates of variable consideration.

Deferred Revenues

We record deferred revenues when cash payments are received or due in advance of our performance, including amounts which are refundable. The increase in the deferred revenue balance for the twelve months ended December 31, 2018 is primarily driven by cash payments received or due in advance of satisfying our performance obligations, offset by $1.5 billion of revenues recognized that were included in the deferred revenue balance as of December 31, 2017.

Our payment terms vary by the type and location of our customer and the products or services offered. The term between invoicing and when payment is due is not significant. For certain products or services and customer types, we require payment before the products or services are delivered to the customer.

Practical Expedients and Exemptions

We generally expense sales commissions when incurred because the amortization period would have been one year or less. These costs are recorded within sales and marketing expenses.

We do not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed.

Fact Table
Network	2103100 - Disclosure - Financial Instruments (http://www.google.com/role/FinancialInstruments)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Financial Instruments Disclosure [Text Block]

Financial Instruments

Debt Securities

We classify our marketable debt securities within Level 2 in the fair value hierarchy because we use quoted market prices to the extent available or alternative pricing sources and models utilizing market observable inputs to determine fair value. In January 2018, we reclassified our U.S. government notes included in marketable debt securities from Level 1 to Level 2 within the fair value hierarchy as these securities are priced based on a combination of quoted prices for identical or similar instruments in active markets and models with significant observable market inputs. Prior period amounts have been reclassified to conform with current period presentation. The vast majority of our government bond holdings are highly liquid U.S. government notes.

We classify our non-marketable debt securities within Level 3 in the fair value hierarchy because they are preferred stock and convertible notes issued by private companies without quoted market prices. To estimate the fair value of our non-marketable debt securities, we use a combination of valuation methodologies, including market and income approaches based on prior transaction prices; estimated timing, probability, and amount of cash flows; and illiquidity considerations. Financial information of private companies may not be available and consequently we estimate the fair value based on the best available information at the measurement date.

The following tables summarize our debt securities by significant investment categories as of December 31, 2017 and 2018 (in millions):



	As of December 31, 2017
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Marketable Securities		Non-Marketable Securities
Level 2:
Time deposits⁽¹⁾	$	359	$	0	$	0		$	359	$	357	$	2	$	0
Government bonds⁽²⁾	51,548		10		(406		)	51,152		1,241		49,911		0
Corporate debt securities	24,269		21		(135		)	24,155		126		24,029		0
Mortgage-backed and asset-backed securities	16,789		13		(180		)	16,622		0		16,622		0
	92,965		44		(721		)	92,288		1,724		90,564		0
Level 3:
Non-marketable debt securities	1,083		811		0			1,894		0		0		1,894

Total	$	94,048	$	855	$	(721	)	$	94,182	$	1,724	$	90,564	$	1,894



	As of December 31, 2018
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Marketable Securities		Non-Marketable Securities
Level 2:
Time deposits⁽¹⁾	$	2,202	$	0	$	0		$	2,202	$	2,202	$	0	$	0
Government bonds⁽²⁾	53,634		71		(414		)	53,291		3,717		49,574		0
Corporate debt securities	25,383		15		(316		)	25,082		44		25,038		0
Mortgage-backed and asset-backed securities	16,918		11		(324		)	16,605		0		16,605		0
	98,137		97		(1,054		)	97,180		5,963		91,217		0
Level 3:
Non-marketable debt securities	147		116		0			263		0		0		263

Total	$	98,284	$	213	$	(1,054	)	$	97,443	$	5,963	$	91,217	$	263


⁽¹⁾	As of December 31, 2017, the majority of our time deposits were foreign deposits. As of December 31, 2018, the majority of our time deposits are domestic deposits.


⁽²⁾	Government bonds are comprised primarily of U.S. government notes, and also includes U.S. government agencies, foreign government bonds, and municipal securities.

We determine realized gains or losses on the sale or extinguishment of debt securities on a specific identification method. We recognized gross realized gains of $251 million, $185 million, and $1.3 billion for the years ended December 31, 2016, 2017, and 2018, respectively. We recognized gross realized losses of $304 million, $295 million, and $143 million for the years ended December 31, 2016, 2017, and 2018, respectively. We reflect these gains and losses as a component of other income (expense), net, in the Consolidated Statements of Income.

The following table summarizes the estimated fair value of our investments in marketable debt securities with stated contractual maturity dates, accounted for as available-for-sale securities and classified by the contractual maturity date of the securities (in millions):



	As of December 31, 2018
Due in 1 year	$	23,669
Due in 1 year through 5 years	54,504
Due in 5 years through 10 years	2,236
Due after 10 years	10,808
Total	$	91,217

The following tables present gross unrealized losses and fair values for those investments that were in an unrealized loss position as of December 31, 2017 and 2018, aggregated by investment category and the length of time that individual securities have been in a continuous loss position (in millions):



	As of December 31, 2017
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government bonds⁽¹⁾	$	28,836	$	(211	)	$	17,660	$	(195	)	$	46,496	$	(406	)
Corporate debt securities	18,300		(114		)	1,710		(21		)	20,010		(135		)
Mortgage-backed and asset-backed securities	11,061		(105		)	3,449		(75		)	14,510		(180		)
Total	$	58,197	$	(430	)	$	22,819	$	(291	)	$	81,016	$	(721	)



	As of December 31, 2018
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government bonds⁽¹⁾	$	12,019	$	(85	)	$	23,877	$	(329	)	$	35,896	$	(414	)
Corporate debt securities	10,171		(107		)	11,545		(209		)	21,716		(316		)
Mortgage-backed and asset-backed securities	5,534		(75		)	8,519		(249		)	14,053		(324		)
Total	$	27,724	$	(267	)	$	43,941	$	(787	)	$	71,665	$	(1,054	)


⁽¹⁾	Government bonds are comprised primarily of U.S. government notes, and also includes U.S. government agencies, foreign government bonds, and municipal securities.

During the years ended December 31, 2016, 2017 and 2018, we did not recognize any significant other-than-temporary impairment losses. Losses on impairment are included as a component of other income (expense), net, in the Consolidated Statements of Income. See Note 6 for further details on other income (expense), net.

The following table presents a reconciliation for our non-marketable debt securities measured and recorded at fair value on a recurring basis, using significant unobservable inputs (Level 3) (in millions):



	Year Ended December 31,
	2017			2018
Beginning balance	$	1,165		$	1,894
Total net gains (losses)
Included in earnings	(10		)	603
Included in other comprehensive income	707			(1		)
Purchases	88			47
Sales	(2		)	(52		)
Settlements⁽¹⁾	(54		)	(2,228		)
Ending balance	$	1,894		$	263


⁽¹⁾	During the year ended December 31, 2018 the terms of a non-marketable debt security were modified resulting in an unrealized $1.3 billion gain recognized in other income (expense), net and a reclassification of the security to non-marketable equity securities.

Equity Investments

The following discusses our marketable equity securities, non-marketable equity securities, realized and unrealized gains and losses on marketable and non-marketable equity securities, as well as our equity securities accounted for under the equity method.

Marketable equity securities

Our marketable equity securities are publicly traded stocks or funds measured at fair value and classified within Level 1 and 2 in the fair value hierarchy because we use quoted prices for identical assets in active markets or inputs that are based upon quoted prices for similar instruments in active markets.

Prior to January 1, 2018, we accounted for the majority of our marketable equity securities at fair value with unrealized gains and losses recognized in accumulated other comprehensive income on the balance sheet. Realized gains and losses on marketable equity securities sold or impaired were recognized in other income (expense), net.

Starting January 1, 2018, upon our adoption of ASU 2016-01, unrealized gains and losses during the year are recognized in other income (expense), net. Upon adoption, we reclassified $98 million net unrealized gains related to marketable equity securities from accumulated other comprehensive income to opening retained earnings.

The following table summarizes marketable equity securities measured at fair value by significant investment categories as of December 31, 2017 and 2018 (in millions):



	As of December 31, 2017
	Cash and Cash Equivalents		Marketable Securities
Level 1:
Money market funds	$	1,833	$	0
Marketable equity securities	0		340
	1,833		340
Level 2:
Mutual funds⁽¹⁾	0		252
Total	$	1,833	$	592

(1)The fair value option was elected for mutual funds with gains (losses) recognized in other income (expense), net.



	As of December 31, 2018
	Cash and Cash Equivalents		Marketable Securities
Level 1:
Money market funds	$	3,493	$	0
Marketable equity securities	0		994
	3,493		994
Level 2:
Mutual funds	0		228
Total	$	3,493	$	1,222

Non-marketable equity securities

Our non-marketable equity securities are investments in privately held companies without readily determinable market values.

Prior to January 1, 2018, we accounted for our non-marketable equity securities at cost less impairment. Realized gains and losses on non-marketable securities sold or impaired were recognized in other income (expense), net. As of December 31, 2017, non-marketable equity securities accounted for under the cost method had a carrying value of $4.5 billion and a fair value of approximately $8.8 billion.

On January 1, 2018, we adopted ASU 2016-01 which changed the way we account for non-marketable securities. The carrying value of our non-marketable equity securities is adjusted to fair value for observable transactions for identical or similar investments of the same issuer or impairment (referred to as the measurement alternative). All gains and losses on non-marketable equity securities, realized and unrealized, are recognized in other income (expense), net. Because we adopted ASU 2016-01 prospectively, we recognize unrealized gains that occurred in prior periods in the first period after January 1, 2018 when there is an observable transaction for our securities. Non-marketable equity securities remeasured during the year ended December 31, 2018 are classified within Level 3 in the fair value hierarchy because we estimate the value based on valuation methods using the observable transaction price at the transaction date and other unobservable inputs including volatility, rights, and obligations of the securities we hold.

The following is a summary of unrealized gains and losses recorded in other income (expense), net, and included as adjustments to the carrying value of non-marketable equity securities held as of December 31, 2018 (in millions):



	Twelve Months Ended December 31, 2018
Upward adjustments	$	4,285
Downward adjustments (including impairment)	(178		)
Total unrealized gain (loss) for non-marketable equity securities	$	4,107

The following table summarizes the total carrying value of our non-marketable equity securities held as of December 31, 2018 including cumulative unrealized upward and downward adjustments made to the initial cost basis of the securities (in millions):



Initial cost basis⁽¹⁾	$	8,168
Upward adjustments	4,285
Downward adjustments (including impairment)	(178		)
Total carrying value at the end of the period	$	12,275


⁽¹⁾	Includes $2.2 billion for a non-marketable equity security reclassified from a non-marketable debt security during 2018.

During the year ended December 31, 2018, included in the $12.3 billion of non-marketable equity securities, $6.9 billion were measured at fair value based on observable market transactions, resulting in a net unrealized gain of $4.1 billion.

Gains and losses on marketable and non-marketable equity securities

Realized and unrealized gains and losses for our marketable and non-marketable equity securities for the year ended December 31, 2018 are summarized below (in millions):



	Twelve Months Ended December 31, 2018
Realized gain (loss) for equity securities sold during the period	$	1,458
Unrealized gain (loss) on equity securities held as of the end of the period⁽¹⁾	4,002
Total gain (loss) recognized in other income (expense), net	$	5,460


⁽¹⁾	Includes $4,107 million related to non-marketable equity securities for the year ended December 31, 2018.

Equity securities accounted for under the Equity Method

As of December 31, 2017 and 2018, equity securities accounted for under the equity method had a carrying value of approximately $1.4 billion and $1.3 billion, respectively. Our share of gains and losses including impairment are included as a component of other income (expense), net, in the Consolidated Statements of Income. See Note 6 for further details on other income (expense), net.

Derivative Financial Instruments

We classify our foreign currency and interest rate derivative contracts primarily within Level 2 in the fair value hierarchy as the valuation inputs are based on quoted prices and market observable data of similar instruments.

We recognize derivative instruments as either assets or liabilities in the Consolidated Balance Sheets at fair value. We record changes in the fair value (i.e., gains or losses) of the derivatives in the Consolidated Statements of Income as either other income (expense), net, or revenues, or in the Consolidated Balance Sheets in AOCI, as discussed below. As a result of our adoption of Accounting Standard Update No. 2017-12 (ASU 2017-12) "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities," the components excluded from the assessment of hedge effectiveness are recognized in the same income statement line as the hedged item beginning January 1, 2018.

We enter into foreign currency contracts with financial institutions to reduce the risk that our cash flows, earnings, and investment in foreign subsidiaries will be adversely affected by foreign currency exchange rate fluctuations. We also use interest rate derivative contracts to hedge interest rate exposures on our fixed income securities and debt issuances. Our program is not used for trading or speculative purposes.

We enter into master netting arrangements, which reduce credit risk by permitting net settlement of transactions with the same counterparty. To further reduce credit risk, we enter into collateral security arrangements under which the counterparty is required to provide collateral when the net fair value of certain financial instruments fluctuates from contractually established thresholds. We can take possession of the collateral in the event of counterparty default. As of December 31, 2017 and 2018, we received cash collateral related to the derivative instruments under our collateral security arrangements of $15 million and $327 million, respectively, which was included in other current assets.

Cash Flow Hedges

We use foreign currency forwards and option contracts, including collars (an option strategy comprised of a combination of purchased and written options), designated as cash flow hedges to hedge certain forecasted revenue transactions denominated in currencies other than the U.S. dollar. The notional principal of these contracts was approximately $11.7 billion and $11.8 billion as of December 31, 2017 and 2018, respectively. These contracts have maturities of 24 months or less.

For forwards and option contracts, we exclude the change in the forward points and time value from our assessment of hedge effectiveness. The initial value of the excluded component is amortized on a straight-line basis over the life of the hedging instrument and recognized in revenues. The difference between fair value changes of the excluded component and the amount amortized to revenues is recorded in AOCI. We reflect the gains or losses of a cash flow hedge included in our hedge effective assessment as a component of AOCI and subsequently reclassify these gains and losses to revenues when the hedged transactions are recorded. If the hedged transactions become probable of not occurring, the corresponding amounts in AOCI are immediately reclassified to other income (expense), net.

As of December 31, 2018, the net gain or loss of our foreign currency cash flow hedges before tax effect was a net accumulated gain of $247 million, of which a net gain of $247 million is expected to be reclassified from AOCI into earnings within the next 12 months.

Fair Value Hedges

We use forward contracts designated as fair value hedges to hedge foreign currency risks for our investments denominated in currencies other than the U.S. dollar. We exclude changes in forward points for the forward contracts from the assessment of hedge effectiveness. We recognize changes in the excluded component in other income (expense), net. The notional principal of these contracts was $2.9 billion and $2.0 billion as of December 31, 2017 and 2018, respectively.

Gains and losses on these forward contracts are recognized in other income (expense), net, along with the offsetting gains and losses of the related hedged items.

Net Investment Hedges

During the year ended December 31, 2018, we entered into forward contracts designated as net investment hedges to hedge the foreign currency risks related to our investment in foreign subsidiaries. We exclude changes in forward points for the forward contracts from the assessment of hedge effectiveness. We recognize changes in the excluded component in other income (expense), net. The notional principal of these contracts was $6.7 billion as of December 31, 2018.

Gains and losses on these forward contracts are recognized in AOCI as part of the foreign currency translation adjustment.

Other Derivatives

Other derivatives not designated as hedging instruments consist of foreign currency forward contracts that we use to hedge intercompany transactions and other monetary assets or liabilities denominated in currencies other than the local currency of a subsidiary. We recognize gains and losses on these contracts, as well as the related costs in other income (expense), net, along with the foreign currency gains and losses on monetary assets and liabilities. The notional principal of the outstanding foreign exchange contracts was $15.2 billion and $20.1 billion as of December 31, 2017 and 2018, respectively.

The fair values of our outstanding derivative instruments were as follows (in millions):



		As of December 31, 2017
	Balance Sheet Location	Fair Value of Derivatives Designated as Hedging Instruments		Fair Value of Derivatives Not Designated as Hedging Instruments		Total Fair Value
Derivative Assets:
Level 2:
Foreign exchange contracts	Other current and non-current assets	$	51	$	29	$	80
Total		$	51	$	29	$	80
Derivative Liabilities:
Level 2:
Foreign exchange contracts	Accrued expenses and other liabilities, current and non-current	$	230	$	122	$	352
Total		$	230	$	122	$	352



		As of December 31, 2018
	Balance Sheet Location	Fair Value of Derivatives Designated as Hedging Instruments		Fair Value of Derivatives Not Designated as Hedging Instruments		Total Fair Value
Derivative Assets:
Level 2:
Foreign exchange contracts	Other current and non-current assets	$	459	$	54	$	513
Total		$	459	$	54	$	513
Derivative Liabilities:
Level 2:
Foreign exchange contracts	Accrued expenses and other liabilities, current and non-current	$	5	$	228	$	233
Total		$	5	$	228	$	233

The gains (losses) on derivatives in cash flow hedging and net investment hedging relationships recognized in other comprehensive income (OCI) are summarized below (in millions):



	Gains (Losses) Recognized in OCI on Derivatives Before Tax Effect
	Year Ended December 31,
	2016		2017			2018
Derivatives in Cash Flow Hedging Relationship:
Foreign exchange contracts
Amount included in the assessment of effectiveness	$	773	$	(955	)	$	332
Amount excluded from the assessment of effectiveness	0		0			26
Derivatives in Net Investment Hedging Relationship:
Foreign exchange contracts
Amount included in the assessment of effectiveness	0		0			136
Total	$	773	$	(955	)	$	494

The effect of derivative instruments on income is summarized below (in millions):



	Gains (Losses) Recognized in Income
	Year Ended December 31,
	2016					2017						2018
	Revenues		Other income (expense), net			Revenues			Other income (expense), net			Revenues			Other income (expense), net
Total amounts presented in the Consolidated Statements of Income in which the effects of cash flow and fair value hedges are recorded	$	90,272	$	434		$	110,855		$	1,047		$	136,819		$	8,592

Gains (Losses) on Derivatives in Cash Flow Hedging Relationship:
Foreign exchange contracts
Amount of gains (losses) reclassified from AOCI to income	$	539	$	0		$	(169	)	$	0		$	(139	)	$	0
Amount excluded from the assessment of effectiveness recognized in earnings based on an amortization approach	0		0			0			0			1			0
Amount excluded from the assessment of effectiveness	0		(381		)	0			83			0			0
Gains (Losses) on Derivatives in Fair Value Hedging Relationship:
Foreign exchange contracts
Hedged items	0		(139		)	0			197			0			(96		)
Derivatives designated as hedging instruments	0		139			0			(197		)	0			96
Amount excluded from the assessment of effectiveness	0		6			0			23			0			37
Gains (Losses) on Derivatives in Net Investment Hedging Relationship:
Foreign exchange contracts
Amount excluded from the assessment of effectiveness	0		0			0			0			0			78
Gains (Losses) on Derivatives Not Designated as Hedging Instruments:
Foreign exchange contracts
Derivatives not designated as hedging instruments	0		130			0			(230		)	0			54
Total gains (losses)	$	539	$	(245	)	$	(169	)	$	(124	)	$	(138	)	$	169

Offsetting of Derivatives

We present our forwards and purchased options at gross fair values in the Consolidated Balance Sheets. For foreign currency collars, we present at net fair values where both purchased and written options are with the same counterparty. Our master netting and other similar arrangements allow net settlements under certain conditions. As of December 31, 2017 and 2018, information related to these offsetting arrangements were as follows (in millions):

Offsetting of Assets



	As of December 31, 2017
								Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Consolidated Balance Sheets			Net Presented in the Consolidated Balance Sheets		Financial Instruments				Cash Collateral Received			Non-Cash Collateral Received			Net Assets Exposed
Derivatives	$	102	$	(22	)	$	80	$	(64	)	⁽¹⁾	$	(4	)	$	(2	)	$	10

	As of December 31, 2018
								Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Consolidated Balance Sheets			Net Presented in the Consolidated Balance Sheets		Financial Instruments				Cash Collateral Received			Non-Cash Collateral Received			Net Assets Exposed
Derivatives	$	569	$	(56	)	$	513	$	(90	)	⁽¹⁾	$	(307	)	$	(14	)	$	102


⁽¹⁾	The balances as of December 31, 2017 and 2018 were related to derivative liabilities which are allowed to be net settled against derivative assets in accordance with our master netting agreements.

Offsetting of Liabilities



	As of December 31, 2017
								Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets			Net Presented in the Consolidated Balance Sheets		Financial Instruments				Cash Collateral Pledged		Non-Cash Collateral Pledged		Net Liabilities
Derivatives	$	374	$	(22	)	$	352	$	(64	)	⁽²⁾	$	0	$	0	$	288

	As of December 31, 2018
								Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets			Net Presented in the Consolidated Balance Sheets		Financial Instruments				Cash Collateral Pledged		Non-Cash Collateral Pledged		Net Liabilities
Derivatives	$	289	$	(56	)	$	233	$	(90	)	⁽²⁾	$	0	$	0	$	143


⁽²⁾	The balances as of December 31, 2017 and 2018 were related to derivative assets which are allowed to be net settled against derivative liabilities in accordance with our master netting agreements.

Fact Table
Network	2104100 - Disclosure - Variable Interest Entities (VIEs) (http://www.google.com/role/VariableInterestEntitiesVies)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Variable Interest Entity Disclosure [Text Block]	Variable Interest Entities (VIEs) Consolidated VIEs We consolidate VIEs in which we hold a variable interest and are the primary beneficiary. We are the primary beneficiary because we have the power to direct activities that most significantly affect their economic performance and have the obligation to absorb the majority of their losses or benefits. The results of operations and financial position of these VIEs are included in our consolidated financial statements. For certain consolidated VIEs, their assets are not available to us and their creditors do not have recourse to us. As of December 31, 2017 and 2018, assets that can only be used to settle obligations of these VIEs were $1.7 billion and $2.4 billion, respectively, and the liabilities for which creditors only have recourse to the VIEs were $997 million and $909 million, respectively. Calico Calico is a life science company with a mission to harness advanced technologies to increase our understanding of the biology that controls lifespan. In September 2014, AbbVie Inc. (AbbVie) and Calico entered into a research and development collaboration agreement intended to help both companies discover, develop, and bring to market new therapies for patients with age-related diseases, including neurodegeneration and cancer. In the second quarter of 2018, AbbVie and Calico amended the collaboration agreement resulting in an increase in total commitments. As of December 31, 2018, AbbVie has contributed $750 million to fund the collaboration pursuant to the agreement and is committed to an additional $500 million which will be paid by the fourth quarter of 2019. As of December 31, 2018, Calico has contributed $500 million and has committed up to an additional $750 million. Calico has used its scientific expertise to establish a world-class research and development facility, with a focus on drug discovery and early drug development; and AbbVie provides scientific and clinical development support and its commercial expertise to bring new discoveries to market. Both companies share costs and profits for projects covered under this agreement equally. AbbVie's contribution has been recorded as a liability on Calico's financial statements, which is reduced and reflected as a reduction to research and development expense as eligible research and development costs are incurred by Calico. As of December 31, 2018, we have contributed $480 million to Calico in exchange for Calico convertible preferred units and are committed to fund up to an additional $750 million on an as-needed basis and subject to certain conditions. Verily Verily is a life science company with a mission to make the world's health data useful so that people enjoy healthier lives. In 2017, Temasek, a Singapore-based investment company, purchased a noncontrolling interest in Verily for an aggregate of $800 million in cash. In December 2018, Verily received $900 million in cash from a $1.0 billion investment round. The remaining $100 million is expected to be received in the first quarter of 2019. These transactions were accounted for as equity transactions and no gain or loss was recognized. Unconsolidated VIEs Certain renewable energy investments included in our non-marketable equity investments accounted for under the equity method are VIEs. These entities' activities involve power generation using renewable sources. We have determined that the governance structures of these entities do not allow us to direct the activities that would significantly affect their economic performance such as setting operating budgets. Therefore, we do not consolidate these VIEs in our consolidated financial statements. The carrying value and maximum exposure of these VIEs were $896 million and $705 million as of December 31, 2017 and 2018, respectively. The maximum exposure is based on current investments to date. We have determined the single source of our exposure to these VIEs is our capital investment in them. Other unconsolidated VIEs were not material as of December 31, 2017 and 2018.

Fact Table
Network	2106100 - Disclosure - Debt (http://www.google.com/role/Debt)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Debt Disclosure [Text Block]

Debt

Short-Term Debt

We have a debt financing program of up to $5.0 billion through the issuance of commercial paper. Net proceeds from this program are used for general corporate purposes. We had no commercial paper outstanding as of December 31, 2017 and 2018.

Long-Term Debt

Google issued $3.0 billion of senior unsecured notes in three tranches (collectively, 2011 Notes) in May 2011, due in 2014, 2016, and 2021, as well as $1.0 billion of senior unsecured notes (2014 Notes) in February 2014 due in 2024.

In April 2016, we completed an exchange offer with eligible holders of Google’s 2011 Notes due 2021 and 2014 Notes due 2024 (collectively, the Google Notes). An aggregate principal amount of approximately $1.7 billion of the Google Notes was exchanged for approximately $1.7 billion of Alphabet notes with identical interest rate and maturity. Because the exchange was between a parent and the subsidiary company and for substantially identical notes, the change was treated as a debt modification for accounting purposes with no gain or loss recognized.

In August 2016, Alphabet issued $2.0 billion of senior unsecured notes (2016 Notes) due 2026. The net proceeds from the issuance of the 2016 Notes were used for general corporate purposes, including the repayment of outstanding commercial paper. The Alphabet notes due in 2021, 2024, and 2026 rank equally with each other and are structurally subordinate to the outstanding Google Notes.

The total outstanding long-term debt is summarized below (in millions):



	As of December 31, 2017			As of December 31, 2018
3.625% Notes due on May 19, 2021	$	1,000		$	1,000
3.375% Notes due on February 25, 2024	1,000			1,000
1.998% Notes due on August 15, 2026	2,000			2,000
Unamortized discount for the Notes above	(57		)	(50		)
Subtotal⁽¹⁾	3,943			3,950
Capital lease obligation	26			62
Total long-term debt	$	3,969		$	4,012


⁽¹⁾	Includes the outstanding (and unexchanged) Google Notes issued in 2011 and 2014 and the Alphabet notes exchanged in 2016.

The effective interest yields based on proceeds received from the outstanding notes due in 2021, 2024, and 2026 were 3.734%, 3.377%, and 2.231%, respectively, with interest payable semi-annually. We may redeem these notes at any time in whole or in part at specified redemption prices. The total estimated fair value of all outstanding notes was approximately $4.0 billion and $3.9 billion as of December 31, 2017 and 2018, respectively. The fair value was determined based on observable market prices of identical instruments in less active markets and is categorized accordingly as Level 2 in the fair value hierarchy.

As of December 31, 2018, the aggregate future principal payments for long-term debt including long-term capital leases for each of the next five years and thereafter are as follows (in millions):



2019	$	0
2020	14
2021	1,003
2022	3
2023	3
Thereafter	3,039
Total	$	4,062

Credit Facility

As of December 31, 2018, we have $4.0 billion of revolving credit facilities which expire in July 2023. The interest rate for the credit facilities is determined based on a formula using certain market rates. No amounts were outstanding under the credit facilities as of December 31, 2017 and 2018.

Fact Table
Network	2107100 - Disclosure - Supplemental Financial Statement Information (http://www.google.com/role/SupplementalFinancialStatementInformation)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Supplemental Balance Sheet Disclosures [Text Block]

Supplemental Financial Statement Information

Property and Equipment, Net

Property and equipment, net, consisted of the following (in millions):



	As of December 31, 2017			As of December 31, 2018
Land and buildings	$	23,183		$	30,179
Information technology assets	21,429			30,119
Construction in progress	10,491			16,838
Leasehold improvements	4,496			5,310
Furniture and fixtures	48			61
Property and equipment, gross	59,647			82,507
Less: accumulated depreciation	(17,264		)	(22,788		)
Property and equipment, net	$	42,383		$	59,719

As of December 31, 2017 and 2018, assets under capital lease with a cost basis of $390 million and $648 million, respectively, were included in property and equipment.

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following (in millions):



	As of December 31, 2017		As of December 31, 2018
European Commission fines⁽¹⁾	$	2,874	$	7,754
Accrued customer liabilities	1,489		1,810
Other accrued expenses and current liabilities	5,814		7,394
Accrued expenses and other current liabilities	$	10,177	$	16,958


⁽¹⁾	Includes the effects of foreign exchange and interest. See Note 9 for further details

Accumulated Other Comprehensive Income (Loss)

The components of AOCI, net of tax, were as follows (in millions):



	Foreign Currency Translation Adjustments			Unrealized Gains (Losses) on Available-for-Sale Investments			Unrealized Gains (Losses) on Cash Flow Hedges			Total
Balance as of December 31, 2015	$	(2,047	)	$	(86	)	$	259		$	(1,874	)
Other comprehensive income (loss) before reclassifications	(599		)	(314		)	515			(398		)
Amounts reclassified from AOCI	0			221			(351		)	(130		)
Other comprehensive income (loss)	(599		)	(93		)	164			(528		)
Balance as of December 31, 2016	$	(2,646	)	$	(179	)	$	423		$	(2,402	)
Other comprehensive income (loss) before reclassifications	1,543			307			(638		)	1,212
Amounts reclassified from AOCI	0			105			93			198
Other comprehensive income (loss)	1,543			412			(545		)	1,410
Balance as of December 31, 2017	$	(1,103	)	$	233		$	(122	)	$	(992	)
Other comprehensive income (loss) before reclassifications⁽¹⁾	(781		)	(10		)	264			(527		)
Amounts excluded from the assessment of hedge effectiveness recorded in AOCI	0			0			26			26
Amounts reclassified from AOCI	0			(911		)	98			(813		)
Other comprehensive income (loss)	(781		)	(921		)	388			(1,314		)
Balance as of December 31, 2018	$	(1,884	)	$	(688	)	$	266		$	(2,306	)


⁽¹⁾	The change in unrealized gains (losses) on available-for-sale investments included a $98 million adjustment of net unrealized gains related to marketable equity securities from AOCI to opening retained earnings as a result of the adoption of ASU 2016-01 on January 1, 2018.

The effects on net income of amounts reclassified from AOCI were as follows (in millions):



		Gains (Losses) Reclassified from AOCI to the Consolidated Statements of Income
		Year Ended December 31,
AOCI Components	Location	2016			2017			2018
Unrealized gains (losses) on available-for-sale investments
	Other income (expense), net	$	(221	)	$	(105	)	$	1,190
	Provision for income taxes	0			0			(279		)
	Net of tax	$	(221	)	$	(105	)	$	911
Unrealized gains (losses) on cash flow hedges
Foreign exchange contracts	Revenue	$	539		$	(169	)	$	(139	)
Interest rate contracts	Other income (expense), net	5			5			6
	Benefit (provision) for income taxes	(193		)	71			35
	Net of tax	$	351		$	(93	)	$	(98	)
Total amount reclassified, net of tax		$	130		$	(198	)	$	813

Other Income (Expense), Net

The components of other income (expense), net, were as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
Interest income	$	1,220		$	1,312		$	1,878
Interest expense⁽¹⁾	(124		)	(109		)	(114		)
Foreign currency exchange losses, net⁽²⁾	(475		)	(121		)	(80		)
Gain (loss) on debt securities, net⁽³⁾	(53		)	(110		)	1,190
Gain (loss) on equity securities, net	(20		)	73			5,460
Loss and impairment from equity method investments, net	(202		)	(156		)	(120		)
Other	88			158			378
Other income (expense), net	$	434		$	1,047		$	8,592


⁽¹⁾	Interest expense is net of interest capitalized of $0 million, $48 million, and $92 million for the years ended December 31, 2016, 2017, and 2018, respectively.

⁽²⁾

Our foreign currency exchange losses, net, are related to the option premium costs and forwards points for our foreign currency hedging contracts, our foreign exchange transaction gains and losses from the conversion of the transaction currency to the functional currency, offset by the foreign currency hedging contract losses and gains. The net foreign currency transaction losses were $112 million, $226 million, and $195 million for the years ended December 31, 2016, 2017, and 2018, respectively.


⁽³⁾	During the year ended December 31, 2018, the terms of a non-marketable debt security were modified resulting in an unrealized $1.3 billion gain.

Fact Table
Network	2108100 - Disclosure - Acquisitions (http://www.google.com/role/Acquisitions)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Business Combination Disclosure [Text Block]	Acquisitions 2018 Acquisitions HTC Corporation (HTC) In January 2018, we completed the acquisition of a team of engineers and a non-exclusive license of intellectual property from HTC for $1.1 billion in cash. In aggregate, $10 million was cash acquired, $165 million was attributed to intangible assets, $934 million was attributed to goodwill, and $9 million was attributed to net liabilities assumed. Goodwill, which was included in the Google segment, is not deductible for tax purposes. We expect this transaction to accelerate Google’s ongoing hardware efforts. The transaction was accounted for as a business combination. Other Acquisitions During the year ended December 31, 2018, we completed other acquisitions and purchases of intangible assets for total consideration of approximately $573 million. In aggregate, $10 million was cash acquired, $295 million was attributed to intangible assets, $293 million was attributed to goodwill, and $25 million was attributed to net liabilities assumed. These acquisitions generally enhance the breadth and depth of our offerings and expand our expertise in engineering and other functional areas. The amount of goodwill expected to be deductible for tax purposes is approximately $81 million. Pro forma results of operations for these acquisitions, including HTC, have not been presented because they are not material to the consolidated results of operations, either individually or in the aggregate. For all intangible assets acquired and purchased during the year ended December 31, 2018, patents and developed technology have a weighted-average useful life of 3.7 years, customer relationships have a weighted-average useful life of 2.3 years, and trade names and other have a weighted-average useful life of 3.7 years. 2017 Acquisitions During the year ended December 31, 2017, we completed various acquisitions and purchases of intangible assets for total consideration of approximately $322 million. In aggregate, $12 million was cash acquired, $117 million was attributed to intangible assets, $221 million was attributed to goodwill, and $28 million was attributed to net liabilities assumed. These acquisitions generally enhance the breadth and depth of our offerings and expand our expertise in engineering and other functional areas. The amount of goodwill expected to be deductible for tax purposes is approximately $60 million. Pro forma results of operations for these acquisitions have not been presented because they are not material to the consolidated results of operations, either individually or in aggregate. For all intangible assets acquired and purchased during the year ended December 31, 2017, patents and developed technology have a weighted-average useful life of 3.7 years, customer relationships have a weighted-average useful life of 2.0 years, and trade names and other have a weighted-average useful life of 8.8 years.

Fact Table
Network	2109100 - Disclosure - Goodwill and Other Intangible Assets (http://www.google.com/role/GoodwillAndOtherIntangibleAssets)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Goodwill and Intangible Assets Disclosure [Text Block]

Goodwill and Other Intangible Assets

Goodwill

Changes in the carrying amount of goodwill for the years ended December 31, 2017 and 2018 were as follows (in millions):



	Google			Other Bets			Total Consolidated
Balance as of December 31, 2016	$	16,027		$	441		$	16,468
Acquisitions	212			9			221
Foreign currency translation and other adjustments	56			2			58
Balance as of December 31, 2017	16,295			452			16,747
Acquisitions	1,227			0			1,227
Transfers	80			(80		)	0
Foreign currency translation and other adjustments	(81		)	(5		)	(86		)
Balance as of December 31, 2018	$	17,521		$	367		$	17,888

Other Intangible Assets

Information regarding purchased intangible assets were as follows (in millions):



	As of December 31, 2017
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Patents and developed technology	$	5,260	$	3,040	$	2,220
Customer relationships	359		263		96
Trade names and other	544		168		376
Total	$	6,163	$	3,471	$	2,692



	As of December 31, 2018
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
Patents and developed technology	$	5,125	$	3,394	$	1,731
Customer relationships	349		308		41
Trade names and other	703		255		448
Total	$	6,177	$	3,957	$	2,220

Patents and developed technology, customer relationships, and trade names and other have weighted-average remaining useful lives of 3.0 years, 0.5 years, and 3.8 years, respectively.

Amortization expense relating to purchased intangible assets was $833 million, $796 million, and $865 million for the years ended December 31, 2016, 2017, and 2018, respectively.

As of December 31, 2018, expected amortization expense relating to purchased intangible assets for each of the next five years and thereafter is as follows (in millions):



2019	$	712
2020	585
2021	533
2022	201
2023	7
Thereafter	182
	$	2,220

Fact Table
Network	2111100 - Disclosure - Commitments and Contingencies (http://www.google.com/role/CommitmentsAndContingencies)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Commitments and Contingencies Disclosure [Text Block]

Commitments and Contingencies

Operating Leases

We have entered into various non-cancelable operating lease agreements for data centers and land and offices throughout the world with lease periods expiring between 2019 and 2063. We are committed to pay a portion of the actual operating expenses under certain of these lease agreements. These operating expenses are not included in the table below. Certain of these arrangements have free or escalating rent payment provisions. We recognize rent expense on a straight-line basis.

As of December 31, 2018, future minimum payments under operating leases having initial or remaining non-cancelable lease terms in excess of one year, net of sublease income amounts, were as follows (in millions):



	Operating Leases⁽¹⁾		Sub-lease Income		Net Operating Leases
2019	$	1,319	$	16	$	1,303
2020	1,397		13		1,384
2021	1,337		10		1,327
2022	1,153		8		1,145
2023	980		3		977
Thereafter	3,916		5		3,911
Total minimum payments	$	10,102	$	55	$	10,047


⁽¹⁾	Includes future minimum payments for leases which have not yet commenced.

We have entered into certain non-cancelable lease agreements with lease periods expiring between 2021 and 2044 where we are the deemed owner for accounting purposes of new construction projects. Excluded from the table above are future minimum lease payments under such leases totaling approximately $3.5 billion, for which a $1.5 billion liability is included on the Consolidated Balance Sheets as of December 31, 2018.

Rent expense under operating leases was $897 million, $1.1 billion, and $1.3 billion for the years ended December 31, 2016, 2017, and 2018, respectively.

Purchase Obligations

As of December 31, 2018, we had $7.4 billion of other non-cancelable contractual obligations, primarily related to data center operations and build-outs, digital media content licensing, and purchases of inventory.

Indemnifications

In the normal course of business, to facilitate transactions in our services and products, we indemnify certain parties, including advertisers, Google Network Members, and lessors with respect to certain matters. We have agreed to hold certain parties harmless against losses arising from a breach of representations or covenants, or out of intellectual property infringement or other claims made against certain parties. Several of these agreements limit the time within which an indemnification claim can be made and the amount of the claim. In addition, we have entered into indemnification agreements with our officers and directors, and our bylaws contain similar indemnification obligations to our agents.

It is not possible to make a reasonable estimate of the maximum potential amount under these indemnification agreements due to the unique facts and circumstances involved in each particular agreement. Additionally, we have a limited history of prior indemnification claims and the payments we have made under such agreements have not had a material adverse effect on our results of operations, cash flows, or financial position. However, to the extent that valid indemnification claims arise in the future, future payments by us could be significant and could have a material adverse effect on our results of operations or cash flows in a particular period.

As of December 31, 2018, we did not have any material indemnification claims that were probable or reasonably possible.

Legal Matters

Antitrust Investigations

On November 30, 2010, the EC's Directorate General for Competition opened an investigation into various antitrust-related complaints against us.

On April 15, 2015, the EC issued a Statement of Objections (SO) regarding the display and ranking of shopping search results and ads, to which we responded on August 27, 2015. On July 14, 2016, the EC issued a Supplementary SO regarding shopping search results and ads. On June 27, 2017, the EC announced its decision that certain actions taken by Google regarding its display and ranking of shopping search results and ads infringed European competition law. The EC decision imposed a €2.4 billion ($2.7 billion as of June 27, 2017) fine. On September 11, 2017, we appealed the EC decision and on September 27, 2017, we implemented product changes to bring shopping ads into compliance with the EC's decision. We recognized a charge of $2.7 billion for the fine in the second quarter of 2017. While under appeal, the fine is included in accrued expenses and other current liabilities on our Consolidated Balance Sheets as we provided bank guarantees in lieu of a cash payment for the fine.

On April 20, 2016, the EC issued an SO regarding certain Android distribution practices. We responded to the SO and the EC's informational requests. On July 18, 2018, the EC announced its decision that certain provisions in Google’s Android-related distribution agreements infringed European competition law. The EC decision imposed a €4.3 billion ($5.1 billion as of June 30, 2018) fine and directed the termination of the conduct at issue. On October 9, 2018, we appealed the EC decision and implemented changes to certain of our Android distribution practices. We recognized a charge of $5.1 billion for the fine in the second quarter of 2018. While under appeal, the fine is included in accrued expenses and other current liabilities on our Consolidated Balance Sheets as we provided bank guarantees in lieu of a cash payment for the fine.

On July 14, 2016, the EC issued an SO regarding the syndication of AdSense for Search. We responded to the SO and continue to respond to the EC's informational requests. There is significant uncertainty as to the outcome of this investigation; however, an adverse decision could result in fines and directives to alter or terminate certain conduct. Given the nature of this case, we are unable to estimate the reasonably possible loss or range of loss, if any. We remain committed to working with the EC to resolve these matters.

The Comision Nacional de Defensa de la Competencia in Argentina, the Competition Commission of India (CCI), Brazil's Administrative Council for Economic Defense (CADE), and the Korean Fair Trade Commission have also opened investigations into certain of our business practices. In November 2016, we responded to the CCI Director General's report with interim findings of competition law infringements regarding search and ads. On February 8, 2018, the CCI issued its final decision, including a fine of approximately $21 million, finding no violation of competition law infringement on most of the issues it investigated, but finding violations, including in the display of the “flights unit” in search results, and a contractual provision in certain direct search intermediation agreements. We have appealed the CCI decision. The fine was accrued for in 2018.

Patent and Intellectual Property Claims

We have had patent, copyright, trade secret, and trademark infringement lawsuits filed against us claiming that certain of our products, services, and technologies infringe the intellectual property rights of others. Adverse results in these lawsuits may include awards of substantial monetary damages, costly royalty or licensing agreements, or orders preventing us from offering certain features, functionalities, products, or services, and may also cause us to change our business practices, and require development of non-infringing products or technologies, which could result in a loss of revenues for us and otherwise harm our business. In addition, the U.S. International Trade Commission (ITC) has increasingly become an important forum to litigate intellectual property disputes because an ultimate loss for a company or its suppliers in an ITC action could result in a prohibition on importing infringing products into the U.S. Because the U.S. is an important market, a prohibition on importation could have an adverse effect on us, including preventing us from importing many important products into the U.S. or necessitating workarounds that may limit certain features of our products.

Furthermore, many of our agreements with our customers and partners require us to indemnify them for certain intellectual property infringement claims against them, which would increase our costs as a result of defending such claims, and may require that we pay significant damages if there were an adverse ruling in any such claims. Our customers and partners may discontinue the use of our products, services, and technologies, as a result of injunctions or otherwise, which could result in loss of revenues and adversely affect our business.

In 2010, Oracle America, Inc. (Oracle) brought a copyright lawsuit against Google in the Northern District of California, alleging that Google's Android operating system infringes Oracle's copyrights related to certain Java application programming interfaces. After trial, final judgment was entered by the district court in favor of Google on June 8, 2016, and the court decided post-trial motions in favor of Google. Oracle appealed and on March 27, 2018, the appeals court reversed and remanded the case for a trial on damages. On May 29, 2018, we filed a petition for an en banc rehearing at the Federal Circuit, and on August 28, 2018, the Federal Circuit denied the petition. On January 24, 2019, we filed a petition to the Supreme Court of the United States to review this case. We believe this lawsuit is without merit and are defending ourselves vigorously. Given the nature of this case, we are unable to estimate the reasonably possible loss or range of loss, if any, arising from this matter.

Other

We are also regularly subject to claims, suits, regulatory and government investigations, and other proceedings involving competition (such as the pending EC investigations described above), intellectual property, privacy, tax and related compliance, labor and employment, commercial disputes, content generated by our users, goods and services offered by advertisers or publishers using our platforms, personal injury, consumer protection, and other matters. Such claims, suits, regulatory and government investigations, and other proceedings could result in fines, civil or criminal penalties, or other adverse consequences.

Certain of these outstanding matters include speculative, substantial or indeterminate monetary amounts. We record a liability when we believe that it is probable that a loss has been incurred and the amount can be reasonably estimated. If we determine that a loss is reasonably possible and the loss or range of loss can be estimated, we disclose the reasonably possible loss. We evaluate developments in our legal matters that could affect the amount of liability that has been previously accrued, and the matters and related reasonably possible losses disclosed, and make adjustments as appropriate. Significant judgment is required to determine both likelihood of there being and the estimated amount of a loss related to such matters.

With respect to our outstanding matters, based on our current knowledge, we believe that the amount or range of reasonably possible loss will not, either individually or in aggregate, have a material adverse effect on our business, consolidated financial position, results of operations, or cash flows. However, the outcome of such matters is inherently unpredictable and subject to significant uncertainties.

We expense legal fees in the period in which they are incurred.

Non-Income Taxes

We are under audit by various domestic and foreign tax authorities with regards to non-income tax matters. The subject matter of non-income tax audits primarily arises from disputes on the tax treatment and tax rate applied to the sale of our products and services in these jurisdictions and the tax treatment of certain employee benefits. We accrue non-income taxes that may result from examinations by, or any negotiated agreements with, these tax authorities when a loss is probable and reasonably estimable. If we determine that a loss is reasonably possible and the loss or range of loss can be estimated, we disclose the reasonably possible loss. We believe these matters are without merit and we are defending ourselves vigorously. Due to the inherent complexity and uncertainty of these matters and judicial process in certain jurisdictions, the final outcome may be materially different from our expectations.

For information regarding income tax contingencies, see Note 13.

Fact Table
Network	2112100 - Disclosure - Stockholders' Equity (http://www.google.com/role/StockholdersEquity)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Stockholders' Equity Note Disclosure [Text Block]	Stockholders’ Equity Convertible Preferred Stock Our board of directors has authorized 100 million shares of convertible preferred stock, $0.001 par value, issuable in series. As of December 31, 2017 and 2018, no shares were issued or outstanding. Class A and Class B Common Stock and Class C Capital Stock Our board of directors has authorized three classes of stock, Class A and Class B common stock, and Class C capital stock. The rights of the holders of each class of our common and capital stock are identical, except with respect to voting. Each share of Class A common stock is entitled to one vote per share. Each share of Class B common stock is entitled to 10 votes per share. Class C capital stock has no voting rights, except as required by applicable law. Shares of Class B common stock may be converted at any time at the option of the stockholder and automatically convert upon sale or transfer to Class A common stock. Share Repurchases In October 2016, the board of directors of Alphabet authorized the company to repurchase up to $7.0 billion of its Class C capital stock, which was completed during 2018. In January 2018, the board of directors of Alphabet authorized the company to repurchase up to $8.6 billion of its Class C capital stock. The repurchases are being executed from time to time, subject to general business and market conditions and other investment opportunities, through open market purchases or privately negotiated transactions, including through Rule 10b5-1 plans. The repurchase program does not have an expiration date. During the years ended December 31, 2017 and 2018, we repurchased and subsequently retired 5.2 million shares of Alphabet Class C capital stock for an aggregate amount of $4.8 billion and 8.2 million shares of Alphabet Class C capital stock for an aggregate amount of $9.1 billion, respectively.

Fact Table
Network	2113100 - Disclosure - Net Income Per Share (http://www.google.com/role/NetIncomePerShare)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Earnings Per Share [Text Block]

Net Income Per Share

We compute net income per share of Class A and Class B common stock and Class C capital stock using the two-class method. Basic net income per share is computed using the weighted-average number of shares outstanding during the period. Diluted net income per share is computed using the weighted-average number of shares and the effect of potentially dilutive securities outstanding during the period. Potentially dilutive securities consist of restricted stock units and other contingently issuable shares. The dilutive effect of outstanding restricted stock units and other contingently issuable shares is reflected in diluted earnings per share by application of the treasury stock method. The computation of the diluted net income per share of Class A common stock assumes the conversion of Class B common stock, while the diluted net income per share of Class B common stock does not assume the conversion of those shares.

The rights, including the liquidation and dividend rights, of the holders of our Class A and Class B common stock and Class C capital stock are identical, except with respect to voting. Furthermore, there are a number of safeguards built into our certificate of incorporation, as well as Delaware law, which preclude our board of directors from declaring or paying unequal per share dividends on our Class A and Class B common stock and Class C capital stock. Specifically, Delaware law provides that amendments to our certificate of incorporation which would have the effect of adversely altering the rights, powers, or preferences of a given class of stock must be approved by the class of stock adversely affected by the proposed amendment. In addition, our certificate of incorporation provides that before any such amendment may be put to a stockholder vote, it must be approved by the unanimous consent of our board of directors. As a result, the undistributed earnings for each year are allocated based on the contractual participation rights of the Class A and Class B common shares and Class C capital stock as if the earnings for the year had been distributed. As the liquidation and dividend rights are identical, the undistributed earnings are allocated on a proportionate basis.

In the years ended December 31, 2016, 2017 and 2018, the net income per share amounts are the same for Class A and Class B common stock and Class C capital stock because the holders of each class are entitled to equal per share dividends or distributions in liquidation in accordance with the Amended and Restated Certificate of Incorporation of Alphabet Inc.

The following tables set forth the computation of basic and diluted net income per share of Class A and Class B common stock and Class C capital stock (in millions, except share amounts which are reflected in thousands and per share amounts):



	Year Ended December 31,
	2016
	Class A			Class B			Class C
Basic net income per share:
Numerator
Allocation of undistributed earnings	$	8,332		$	1,384		$	9,762
Denominator
Number of shares used in per share computation	294,217			48,859			344,702
Basic net income per share	$	28.32		$	28.32		$	28.32
Diluted net income per share:
Numerator
Allocation of undistributed earnings for basic computation	$	8,332		$	1,384		$	9,762
Effect of dilutive securities in equity method investments and subsidiaries	(9		)	(2		)	(10		)
Allocation of undistributed earnings for diluted computation	8,323			1,382			9,752
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	1,382			0			0
Reallocation of undistributed earnings	(94		)	(21		)	94
Allocation of undistributed earnings	$	9,611		$	1,361		$	9,846
Denominator
Number of shares used in basic computation	294,217			48,859			344,702
Weighted-average effect of dilutive securities
Add:
Conversion of Class B to Class A common shares outstanding	48,859			0			0
Restricted stock units and other contingently issuable shares	2,055			0			8,873
Number of shares used in per share computation	345,131			48,859			353,575
Diluted net income per share	$	27.85		$	27.85		$	27.85



	Year Ended December 31,
	2017
	Class A			Class B			Class C
Basic net income per share:
Numerator
Allocation of undistributed earnings	$	5,438		$	862		$	6,362
Denominator
Number of shares used in per share computation	297,604			47,146			348,151
Basic net income per share	$	18.27		$	18.27		$	18.27
Diluted net income per share:
Numerator
Allocation of undistributed earnings for basic computation	$	5,438		$	862		$	6,362
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	862			0			0
Reallocation of undistributed earnings	(74		)	(14		)	74
Allocation of undistributed earnings	$	6,226		$	848		$	6,436
Denominator
Number of shares used in basic computation	297,604			47,146			348,151
Weighted-average effect of dilutive securities
Add:
Conversion of Class B to Class A common shares outstanding	47,146			0			0
Restricted stock units and other contingently issuable shares	1,192			0			9,491
Number of shares used in per share computation	345,942			47,146			357,642
Diluted net income per share	$	18.00		$	18.00		$	18.00



	Year Ended December 31,
	2018
	Class A			Class B			Class C
Basic net income per share:
Numerator
Allocation of undistributed earnings	$	13,200		$	2,072		$	15,464
Denominator
Number of shares used in per share computation	298,548			46,864			349,728
Basic net income per share	$	44.22		$	44.22		$	44.22
Diluted net income per share:
Numerator
Allocation of undistributed earnings for basic computation	$	13,200		$	2,072		$	15,464
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	2,072			0			0
Reallocation of undistributed earnings	(146		)	(24		)	146
Allocation of undistributed earnings	$	15,126		$	2,048		$	15,610
Denominator
Number of shares used in basic computation	298,548			46,864			349,728
Weighted-average effect of dilutive securities
Add:
Conversion of Class B to Class A common shares outstanding	46,864			0			0
Restricted stock units and other contingently issuable shares	689			0			7,456
Number of shares used in per share computation	346,101			46,864			357,184
Diluted net income per share	$	43.70		$	43.70		$	43.70

Fact Table
Network	2114100 - Disclosure - Compensation Plans (http://www.google.com/role/CompensationPlans)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Compensation and Employee Benefit Plans [Text Block]

Compensation Plans

Stock Plans

Under our 2012 Stock Plan, RSUs or stock options may be granted. An RSU award is an agreement to issue shares of our publicly traded stock at the time the award vests. Incentive and non-qualified stock options, or rights to purchase common stock, are generally granted for a term of 10 years. RSUs granted to participants under the 2012 Stock Plan generally vest over four years contingent upon employment or service with us on the vesting date.

As of December 31, 2018, there were 31,848,134 shares of stock reserved for future issuance under our Stock Plan.

Stock-Based Compensation

For the years ended December 31, 2016, 2017 and 2018, total stock-based compensation expense was $6.9 billion, $7.9 billion and $10.0 billion, including amounts associated with awards we expect to settle in Alphabet stock of $6.7 billion, $7.7 billion, and $9.4 billion, respectively.

For the years ended December 31, 2016, 2017 and 2018, we recognized tax benefits on total stock-based compensation expense, which are reflected in the provision for income taxes in the Consolidated Statements of Income, of $1.5 billion, $1.6 billion, and $1.5 billion, respectively.

For the years ended December 31, 2016, 2017 and 2018, tax benefit realized related to awards vested or exercised during the period was $2.1 billion, $2.7 billion and $2.1 billion, respectively. These amounts do not include the indirect effects of stock-based awards, which primarily relate to the research and development tax credit.

Stock-Based Award Activities

The following table summarizes the activities for our unvested RSUs for the year ended December 31, 2018:



	Unvested Restricted Stock Units
	Number of Shares		Weighted- Average Grant-Date Fair Value
Unvested as of December 31, 2017	20,077,346		$	712.45
Granted	12,669,251		$	1,095.89
Vested	(12,847,910	)	$	756.45
Forfeited/canceled	(1,431,009	)	$	814.19
Unvested as of December 31, 2018	18,467,678		$	936.96

The weighted-average grant-date fair value of RSUs granted during the years ended December 31, 2016 and 2017, was $713.89 and $845.06, respectively. Total fair value of RSUs, as of their respective vesting dates, during the years ended December 31, 2016, 2017, and 2018 were $9.0 billion, $11.3 billion, and $14.1 billion, respectively.

As of December 31, 2018, there was $16.2 billion of unrecognized compensation cost related to unvested employee RSUs. This amount is expected to be recognized over a weighted-average period of 2.5 years.

401(k) Plans

We have two 401(k) Savings Plans that qualify as deferred salary arrangements under Section 401(k) of the Internal Revenue Code. Under these 401(k) Plans, matching contributions are based upon the amount of the employees’ contributions subject to certain limitations. We recognized expense of approximately $385 million, $448 million, and $691 million for the years ended December 31, 2016, 2017, and 2018, respectively.

Performance Fees

We have compensation arrangements with payouts based on realized investment returns. We recognize compensation expense based on the estimated payouts, which may result in expense recognized before investment returns are realized. For the year ended December 31, 2018, performance fees of $1.2 billion primarily related to gains on equity securities (for further information on gains on equity securities, see Note 3) were accrued and recorded as a component of general and administrative expenses.

Fact Table
Network	2115100 - Disclosure - Income Taxes (http://www.google.com/role/IncomeTaxes)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Income Tax Disclosure [Text Block]

Income Taxes

Income from continuing operations before income taxes included income from domestic operations of $12.0 billion, $10.7 billion, and $15.8 billion for the years ended December 31, 2016, 2017, and 2018, respectively, and income from foreign operations of $12.1 billion, $16.5 billion, and $19.1 billion for the years ended December 31, 2016, 2017, and 2018, respectively.

The provision for income taxes consists of the following (in millions):



	Year Ended December 31,
	2016			2017			2018
Current:
Federal and state	$	3,826		$	12,608		$	2,153
Foreign	966			1,746			1,251
Total	4,792			14,354			3,404
Deferred:
Federal and state	(70		)	220			907
Foreign	(50		)	(43		)	(134		)
Total	(120		)	177			773
Provision for income taxes	$	4,672		$	14,531		$	4,177

The Tax Act enacted on December 22, 2017 introduced significant changes to U.S. income tax law. Effective 2018, the Tax Act reduced the U.S. statutory tax rate from 35% to 21% and created new taxes on certain foreign-sourced earnings and certain related-party payments.

Due to the timing of the enactment and the complexity involved in applying the provisions of the Tax Act, we made reasonable estimates of the effects and recorded provisional amounts in our consolidated financial statements as of December 31, 2017. As we collected and prepared necessary data, and interpreted the additional guidance issued by the U.S. Treasury Department, the IRS, and other standard-setting bodies, we made adjustments, over the course of the year, to the provisional amounts including refinements to deferred taxes. The accounting for the tax effects of the Tax Act has been completed as of December 31, 2018.

One-time transition tax

The Tax Act required us to pay U.S. income taxes on accumulated foreign subsidiary earnings not previously subject to U.S. income tax at a rate of 15.5% to the extent of foreign cash and certain other net current assets and 8% on the remaining earnings. We recorded a provisional amount for our one-time transitional tax liability and income tax expense of $10.2 billion as of December 31, 2017.

Deferred tax effects

Due to the change in the statutory tax rate from the Tax Act, we remeasured our deferred taxes as of December 31, 2017 to reflect the reduced rate that will apply in future periods when these deferred taxes are settled or realized. We recognized a deferred tax benefit of $376 million to reflect the reduced U.S. tax rate and other effects of the Tax Act as of December 31, 2017.

The reconciliation of federal statutory income tax rate to our effective income tax rate is as follows:



	Year Ended December 31,
	2016		2017		2018
U.S. federal statutory tax rate	35.0	%	35.0	%	21.0	%
Foreign income taxed at different rates	(11.0	)	(14.2	)	(4.9	)
Effect of the Tax Act
One-time transition tax	0.0		37.6		(0.1	)
Deferred tax effects	0.0		(1.4	)	(1.2	)
Federal research credit	(2.0	)	(1.8	)	(2.4	)
Stock-based compensation expense	(3.4	)	(4.5	)	(2.2	)
European Commission fine	0.0		3.5		3.1
Deferred tax asset valuation allowance	0.1		0.9		(2.0	)
Other adjustments	0.6		(1.7	)	0.7
Effective tax rate	19.3	%	53.4	%	12.0	%

Our effective tax rate for each of the years presented was affected by earnings realized in foreign jurisdictions with statutory tax rates lower than the federal statutory tax rate. Substantially all of the income from foreign operations was earned by an Irish subsidiary. Beginning in 2018, earnings realized in foreign jurisdictions are subject to U.S. tax in accordance with the Tax Act.

On July 27, 2015, the United States Tax Court, in an opinion in Altera Corp. v. Commissioner, invalidated the portion of the Treasury regulations issued under IRC Section 482 requiring related-party participants in a cost sharing arrangement to share stock-based compensation costs. The U.S. Tax Court issued the final decision on December 28, 2015. The IRS served a Notice of Appeal on February 22, 2016 and the case is being heard by the Ninth Circuit Court of Appeals. The Ninth Circuit Court of Appeals overturned the Tax Court’s decision in an opinion issued on July 24, 2018, but withdrew that opinion in an order issued on August 7, 2018 to allow time for a reconstituted panel to confer on the appeal. At this time, the Ninth Circuit Court of Appeals has not issued a final decision, and the U.S. Treasury has not withdrawn the requirement to include stock-based compensation from its regulations. We have evaluated the opinion and continue to record a tax benefit related to reimbursement of cost share payments for the previously shared stock-based compensation costs. In accordance with the Tax Act, the Altera tax benefit was remeasured from 35% to 21%. We also remeasured the tax benefit expected to be realized upon settlement including the expected future new taxes enacted by the Tax Act due upon resolution of the matter. The tax liability recorded as of December 31, 2016 for the U.S. tax cost of the potential repatriation associated with the contingent foreign earnings was reversed due to the Tax Act introducing a territorial tax system and providing a 100% dividend received deduction on certain qualified dividends from foreign subsidiaries. We will continue to monitor developments related to the case and the potential effect on our consolidated financial statements.

Deferred Income Taxes

Deferred income taxes reflect the net effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. We recorded a provisional adjustment to our U.S. deferred income taxes as of December 31, 2017 to reflect the reduction in the U.S. statutory tax rate from 35% to 21% resulting from the Tax Act. Significant components of our deferred tax assets and liabilities are as follows (in millions):



	As of December 31,
	2017			2018
Deferred tax assets:
Stock-based compensation expense	$	251		$	291
Accrued employee benefits	285			387
Accruals and reserves not currently deductible	717			1,062
Tax credits	1,187			1,979
Basis difference in investment in Arris	849			657
Prepaid cost sharing	498			597
Net operating losses	320			557
Other	244			251
Total deferred tax assets	4,351			5,781
Valuation allowance	(2,531		)	(2,817		)
Total deferred tax assets net of valuation allowance	1,820			2,964
Deferred tax liabilities:
Property and equipment	(551		)	(1,382		)
Identified intangibles	(419		)	(229		)
Renewable energy investments	(531		)	(500		)
Investment gains/losses	(22		)	(1,143		)
Other	(47		)	(237		)
Total deferred tax liabilities	(1,570		)	(3,491		)
Net deferred tax assets (liabilities)	$	250		$	(527	)

As of December 31, 2018, our federal and state net operating loss carryforwards for income tax purposes were approximately $1.2 billion and $1.4 billion, respectively. If not utilized, the federal net operating loss carryforwards will begin to expire in 2021 and the state net operating loss carryforwards will begin to expire in 2019. It is more likely than not that certain federal net operating loss carryforwards and our state net operating loss carryforwards will not be realized; therefore, we have recorded a valuation allowance against them. The net operating loss carryforwards are subject to various annual limitations under the tax laws of the different jurisdictions. Our foreign net operating loss carryforwards for income tax purposes were $950 million that will begin to expire in 2021.

As of December 31, 2018, our California research and development credit carryforwards for income tax purposes were approximately $2.4 billion that can be carried over indefinitely. We believe the state tax credit is not likely to be realized.

As of December 31, 2018, we maintained a valuation allowance with respect to California deferred tax assets, certain federal net operating losses, and certain foreign net operating losses that we believe are not likely to be realized. Due to gains from equity securities recognized in 2018, we released the valuation allowance against the deferred tax asset for the book-to-tax basis difference in our investments in Arris shares received from the sale of the Motorola Home business to Arris in 2013. We continue to reassess the remaining valuation allowance quarterly and if future evidence allows for a partial or full release of the valuation allowance, a tax benefit will be recorded accordingly. For further information on the unrealized gains related to marketable equity securities recognized in other income (expenses), see Note 1.

Uncertain Tax Positions

The following table summarizes the activity related to our gross unrecognized tax benefits from January 1, 2016 to December 31, 2018 (in millions):



	2016			2017			2018
Beginning gross unrecognized tax benefits	$	4,167		$	5,393		$	4,696
Increases related to prior year tax positions	899			685			321
Decreases related to prior year tax positions	(157		)	(257		)	(623		)
Decreases related to settlement with tax authorities	(196		)	(1,875		)	(191		)
Increases related to current year tax positions	680			750			449
Ending gross unrecognized tax benefits	$	5,393		$	4,696		$	4,652

The total amount of gross unrecognized tax benefits was $5.4 billion, $4.7 billion, and $4.7 billion as of December 31, 2016, 2017, and 2018, respectively, of which, $4.3 billion, $3.0 billion, and $2.9 billion, if recognized, would affect our effective tax rate, respectively. The decrease in gross unrecognized tax benefits in 2017 was primarily as a result of the resolution of a multi-year U.S. audit.

As of December 31, 2017 and 2018, we had accrued $362 million and $490 million in interest and penalties in provision for income taxes, respectively.

We file income tax returns in the U.S. federal jurisdiction and in many state and foreign jurisdictions, our two major tax jurisdictions are the U.S. federal and Ireland. We are subject to the continuous examination of our income tax returns by the IRS and other tax authorities. The IRS is currently examining our 2013 through 2015 tax returns. We have also received tax assessments in multiple foreign jurisdictions asserting transfer pricing adjustments or permanent establishment. We continue to defend any and all such claims as presented.

Our 2016 and 2017 tax years remain subject to examination by the IRS for U.S. federal tax purposes, and our 2011 through 2017 tax years remain subject to examination by the appropriate governmental agencies for Irish tax purposes. There are other ongoing audits in various other jurisdictions that are not material to our financial statements.

We regularly assess the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of our provision for income taxes. We continue to monitor the progress of ongoing discussions with tax authorities and the effect, if any, of the expected expiration of the statute of limitations in various taxing jurisdictions.

We believe that an adequate provision has been made for any adjustments that may result from tax examinations. However, the outcome of tax audits cannot be predicted with certainty. If any issues addressed in our tax audits are resolved in a manner not consistent with management's expectations, we could be required to adjust our provision for income taxes in the period such resolution occurs. Although the timing of resolution, settlement, and closure of audits is not certain, it is reasonably possible that certain U.S. federal and non-U.S. tax audits may be concluded within the next 12 months, which could significantly increase or decrease the balance of our gross unrecognized tax benefits.

We estimate that our unrecognized tax benefits as of December 31, 2018 could possibly decrease by approximately $600 million in the next 12 months. Positions that may be resolved include various U.S. and non-U.S. matters.

Fact Table
Network	2116100 - Disclosure - Information about Segments and Geographic Areas (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreas)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Segment Reporting Disclosure [Text Block]

Information about Segments and Geographic Areas

We operate our business in multiple operating segments. Google is our only reportable segment. None of our other segments meet the quantitative thresholds to qualify as reportable segments; therefore, the other operating segments are combined and disclosed as Other Bets.

Our reported segments are:

•

Google – Google includes our main products such as Ads, Android, Chrome, Google Cloud, Google Maps, Google Play, Hardware (including Nest), Search, and YouTube. Our technical infrastructure is also included in Google. Google generates revenues primarily from advertising; sales of apps, in-app purchases, digital content products, and hardware; and licensing and service fees, including fees received for Google Cloud offerings.


•	Other Bets – Other Bets is a combination of multiple operating segments that are not individually material. Other Bets includes businesses such as Access, Calico, CapitalG, GV, Verily, Waymo, and X. Revenues from the Other Bets are derived primarily through the sales of internet and TV services through Access as well as licensing and R&D services through Verily.

Revenues, cost of revenues, and operating expenses are generally directly attributed to our segments. Inter-segment revenues are not presented separately, as these amounts are immaterial. Our Chief Operating Decision Maker does not evaluate operating segments using asset information.

In Q1 2018, Nest joined Google’s hardware team. Consequently, the financial results of Nest are reported in the Google segment, with Nest revenues reflected in Google other revenues. Prior period segment information has been recast to conform to the current period segment presentation. Consolidated financial results are not affected.

Information about segments during the periods presented were as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
Revenues:
Google	$	89,984	$	110,378	$	136,224
Other Bets	288		477		595
Total revenues	$	90,272	$	110,855	$	136,819



	Year Ended December 31,
	2016			2017			2018
Operating income (loss):
Google	$	27,055		$	32,287		$	36,517
Other Bets	(2,741		)	(2,734		)	(3,358		)
Reconciling items⁽¹⁾	(598		)	(3,407		)	(6,838		)
Total income from operations	$	23,716		$	26,146		$	26,321


⁽¹⁾	Reconciling items are primarily comprised of the European Commission fines for the years ended December 31, 2017 and 2018, and performance fees for the year ended December 31, 2018, as well as corporate administrative costs and other miscellaneous items that are not allocated to individual segments for all periods presented.



	Year Ended December 31,
	2016			2017		2018
Capital expenditures:
Google	$	9,437		$	12,619	$	25,460
Other Bets	1,365			493		181
Reconciling items⁽²⁾	(590		)	72		(502		)
Total capital expenditures as presented on the Consolidated Statements of Cash Flows	$	10,212		$	13,184	$	25,139


⁽²⁾	Reconciling items are related to timing differences of payments as segment capital expenditures are on accrual basis while total capital expenditures shown on the Consolidated Statements of Cash Flow are on cash basis and other miscellaneous differences.

Stock-based compensation (SBC) and depreciation, amortization, and impairment are included in segment operating income (loss) as shown below (in millions):



	Year Ended December 31,
	2016		2017		2018
Stock-based compensation:
Google	$	6,201	$	7,168	$	8,755
Other Bets	372		363		489
Reconciling items⁽³⁾	130		148		109
Total stock-based compensation⁽⁴⁾	$	6,703	$	7,679	$	9,353

Depreciation, amortization, and impairment:
Google	$	5,882	$	6,608	$	8,708
Other Bets	258		307		327
Reconciling items⁽⁵⁾	4		—		—
Total depreciation, amortization, and impairment as presented on the Consolidated Statements of Cash Flows	$	6,144	$	6,915	$	9,035


⁽³⁾	Reconciling items represent corporate administrative costs that are not allocated to individual segments.


⁽⁴⁾	For purposes of segment reporting, SBC represents awards that we expect to settle in Alphabet stock.


⁽⁵⁾	Reconciling items are primarily related to corporate administrative costs and other miscellaneous items that are not allocated to individual segments.

The following table presents our long-lived assets by geographic area (in millions):



	As of December 31, 2017		As of December 31, 2018
Long-lived assets:
United States	$	55,113	$	74,882
International	17,874		22,234
Total long-lived assets	$	72,987	$	97,116

For revenues by geography, see Note 2.

Fact Table
Network	2131100 - Schedule - Schedule II: Valuation and Qualifying Accounts (http://www.google.com/role/ScheduleIiValuationAndQualifyingAccounts)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

Schedule II: Valuation and Qualifying Accounts

The table below details the activity of the allowance for doubtful accounts and sales credits for the years ended December 31, 2016, 2017 and 2018 (in millions):



	Balance at Beginning of Year		Additions		Usage			Balance at End of Year
Year ended December 31, 2016	$	296	$	942	$	(771	)	$	467
Year ended December 31, 2017	$	467	$	1,131	$	(924	)	$	674
Year ended December 31, 2018	$	674	$	1,115	$	(1,060	)	$	729



Note:	Additions to the allowance for doubtful accounts are charged to expense. Additions to the allowance for sales credits are charged against revenues.

Fact Table
Network	2201201 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Policies) (http://www.google.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesPolicies)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

goog:CashAndCashEquivalentsAndMarketableSecuritiesPolicyPolicyTextBlock (label)

Cash, Cash Equivalents, and Marketable Securities

We invest all excess cash primarily in government bonds, corporate debt securities, mortgage-backed and asset-backed securities, time deposits, and money market funds.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

goog:ImpairmentOfMarketableAndNonMarketableSecuritiesPolicyPolicyTextBlock (label)

Impairment of Investments

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

goog:LongLivedAssetsPolicyPolicyTextBlock (label)

Long-Lived Assets, Goodwill and Other Acquired Intangible Assets

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

goog:NatureOfOperationsPolicyPolicyTextBlock (label)

Nature of Operations

We generate revenues primarily by delivering relevant, cost-effective online advertising.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

goog:NonMarketableEquityInvestmentsPolicyPolicyTextBlock (label)

Non-Marketable Investments

We account for our non-marketable investments that meet the definition of a debt security as available-for-sale securities.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Advertising Costs, Policy [Policy Text Block]

Advertising and Promotional Expenses

We expense advertising and promotional costs in the period in which they are incurred.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Business Combinations Policy [Policy Text Block]

Business Combinations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Performance Fees

We have compensation arrangements with payouts based on realized investment returns. We recognize compensation expense based on the estimated payouts

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Certain Risks and Concentrations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Consolidation, Policy [Policy Text Block]

Basis of Consolidation

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Consolidation, Variable Interest Entity, Policy [Policy Text Block]

Variable Interest Entities

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Fair Value of Financial Instruments, Policy [Policy Text Block]

Fair Value of Financial Instruments

Level 1 - Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 3 - Unobservable inputs that are supported by little or no market activities.

The fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Foreign Currency Transactions and Translations Policy [Policy Text Block]

Foreign Currency

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Income Tax, Policy [Policy Text Block]

Income Taxes

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Inventory, Policy [Policy Text Block]

Inventory

Inventory consists primarily of finished goods and is stated at the lower of cost and net realizable value. Cost is computed using the first-in, first-out method.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

New Accounting Pronouncements, Policy [Policy Text Block]

Recent Accounting Pronouncements

Recently issued accounting pronouncements not yet adopted

Recently adopted accounting pronouncements

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Reclassification, Policy [Policy Text Block]

Prior Period Reclassifications

Certain amounts in prior periods have been reclassified to conform with current period presentation.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Property, Plant and Equipment, Policy [Policy Text Block]

Property and Equipment

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Receivables, Policy [Policy Text Block]

Accounts Receivable

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Research, Development, and Computer Software, Policy [Policy Text Block]

Software Development Costs

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Revenue from Contract with Customer [Policy Text Block]

Revenue Recognition

See Note 2 for further discussion on Revenues.

Cost of Revenues

Cost of revenues consists of TAC and other costs of revenues.

Other costs of revenues (which is the cost of revenues excluding TAC) include the following:


•	Content acquisition costs primarily related to payments to content providers from whom we license video and other content for distribution on YouTube and Google Play (we pay fees to these content providers based on revenues generated or a flat fee);


•	Expenses associated with our data centers and other operations (including bandwidth, compensation expense (including SBC), depreciation, energy, and other equipment costs); and


•	Inventory related costs for hardware we sell.

Advertising Revenues

We generate revenues primarily by delivering advertising on Google properties and Google Network Members’ properties.

Google Network Members’ properties revenues consist primarily of advertising revenues generated on Google Network Members’ properties.

Other Revenues

Google other revenues and Other Bets revenues consist primarily of revenues from:


•	Apps, in-app purchases, and digital content in the Google Play store;


•	Google Cloud offerings;


•	Hardware; and


•	Other miscellaneous products and services.

Arrangements with Multiple Performance Obligations

Customer Incentives and Credits

Deferred Revenues

Practical Expedients and Exemptions

We generally expense sales commissions when incurred because the amortization period would have been one year or less. These costs are recorded within sales and marketing expenses.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]

Stock-based Compensation

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Use of Estimates, Policy [Policy Text Block]

Use of Estimates

Fact Table
Network	2302301 - Disclosure - Revenues (Tables) (http://www.google.com/role/RevenuesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Disaggregation of Revenue [Table Text Block]

The following table presents our revenues disaggregated by revenue source (in millions). Sales and usage-based taxes are excluded from revenues.



	Year Ended December 31,
	2016⁽¹⁾		2017		2018
Google properties	$	63,785	$	77,788	$	96,336
Google Network Members' properties	15,598		17,587		19,982
Google advertising revenues	79,383		95,375		116,318
Google other revenues	10,601		15,003		19,906
Other Bets revenues	288		477		595
Total revenues⁽²⁾	$	90,272	$	110,855	$	136,819


⁽¹⁾	As noted above, prior period amounts have not been adjusted under the modified retrospective method.


⁽²⁾	Revenues include hedging gains (losses) of $539 million, $(169) million, and $(138) million for the years ended December 31, 2016, 2017, and 2018, respectively, which do not represent revenues recognized from contracts with customers.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Revenue from External Customers by Geographic Areas [Table Text Block]

The following table presents our revenues disaggregated by geography, based on the addresses of our customers (in millions):



	Year Ended December 31,
	2016				2017				2018
United States	$	42,781	47	%	$	52,449	47	%	$	63,269	46	%
EMEA⁽¹⁾	30,304		34		36,046		33		44,567		33
APAC⁽¹⁾	12,559		14		16,235		15		21,374		15
Other Americas⁽¹⁾	4,628		5		6,125		5		7,609		6
Total revenues⁽²⁾	$	90,272	100	%	$	110,855	100	%	$	136,819	100	%


⁽¹⁾	Regions represent Europe, the Middle East, and Africa (EMEA); Asia-Pacific (APAC); and Canada and Latin America (Other Americas).


⁽²⁾	Revenues include hedging gains (losses) for the years ended December 31, 2016, 2017, and 2018.

Fact Table
Network	2303301 - Disclosure - Financial Instruments (Tables) (http://www.google.com/role/FinancialInstrumentsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Debt Securities, Available-for-sale [Table Text Block]

The following tables summarize our debt securities by significant investment categories as of December 31, 2017 and 2018 (in millions):



	As of December 31, 2017
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Marketable Securities		Non-Marketable Securities
Level 2:
Time deposits⁽¹⁾	$	359	$	0	$	0		$	359	$	357	$	2	$	0
Government bonds⁽²⁾	51,548		10		(406		)	51,152		1,241		49,911		0
Corporate debt securities	24,269		21		(135		)	24,155		126		24,029		0
Mortgage-backed and asset-backed securities	16,789		13		(180		)	16,622		0		16,622		0
	92,965		44		(721		)	92,288		1,724		90,564		0
Level 3:
Non-marketable debt securities	1,083		811		0			1,894		0		0		1,894

Total	$	94,048	$	855	$	(721	)	$	94,182	$	1,724	$	90,564	$	1,894



	As of December 31, 2018
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Marketable Securities		Non-Marketable Securities
Level 2:
Time deposits⁽¹⁾	$	2,202	$	0	$	0		$	2,202	$	2,202	$	0	$	0
Government bonds⁽²⁾	53,634		71		(414		)	53,291		3,717		49,574		0
Corporate debt securities	25,383		15		(316		)	25,082		44		25,038		0
Mortgage-backed and asset-backed securities	16,918		11		(324		)	16,605		0		16,605		0
	98,137		97		(1,054		)	97,180		5,963		91,217		0
Level 3:
Non-marketable debt securities	147		116		0			263		0		0		263

Total	$	98,284	$	213	$	(1,054	)	$	97,443	$	5,963	$	91,217	$	263


⁽¹⁾	As of December 31, 2017, the majority of our time deposits were foreign deposits. As of December 31, 2018, the majority of our time deposits are domestic deposits.


⁽²⁾	Government bonds are comprised primarily of U.S. government notes, and also includes U.S. government agencies, foreign government bonds, and municipal securities.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Equity Securities without Readily Determinable Fair Value [Table Text Block]



	Twelve Months Ended December 31, 2018
Upward adjustments	$	4,285
Downward adjustments (including impairment)	(178		)
Total unrealized gain (loss) for non-marketable equity securities	$	4,107



Initial cost basis⁽¹⁾	$	8,168
Upward adjustments	4,285
Downward adjustments (including impairment)	(178		)
Total carrying value at the end of the period	$	12,275


⁽¹⁾	Includes $2.2 billion for a non-marketable equity security reclassified from a non-marketable debt security during 2018.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Gain (Loss) on Securities [Table Text Block]

Realized and unrealized gains and losses for our marketable and non-marketable equity securities for the year ended December 31, 2018 are summarized below (in millions):



	Twelve Months Ended December 31, 2018
Realized gain (loss) for equity securities sold during the period	$	1,458
Unrealized gain (loss) on equity securities held as of the end of the period⁽¹⁾	4,002
Total gain (loss) recognized in other income (expense), net	$	5,460


⁽¹⁾	Includes $4,107 million related to non-marketable equity securities for the year ended December 31, 2018.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Investments Classified by Contractual Maturity Date [Table Text Block]



	As of December 31, 2018
Due in 1 year	$	23,669
Due in 1 year through 5 years	54,504
Due in 5 years through 10 years	2,236
Due after 10 years	10,808
Total	$	91,217

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Marketable Securities [Table Text Block]

The following table summarizes marketable equity securities measured at fair value by significant investment categories as of December 31, 2017 and 2018 (in millions):



	As of December 31, 2017
	Cash and Cash Equivalents		Marketable Securities
Level 1:
Money market funds	$	1,833	$	0
Marketable equity securities	0		340
	1,833		340
Level 2:
Mutual funds⁽¹⁾	0		252
Total	$	1,833	$	592

(1)The fair value option was elected for mutual funds with gains (losses) recognized in other income (expense), net.



	As of December 31, 2018
	Cash and Cash Equivalents		Marketable Securities
Level 1:
Money market funds	$	3,493	$	0
Marketable equity securities	0		994
	3,493		994
Level 2:
Mutual funds	0		228
Total	$	3,493	$	1,222

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Offsetting Assets [Table Text Block]

As of December 31, 2017 and 2018, information related to these offsetting arrangements were as follows (in millions):

Offsetting of Assets



	As of December 31, 2017
								Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Consolidated Balance Sheets			Net Presented in the Consolidated Balance Sheets		Financial Instruments				Cash Collateral Received			Non-Cash Collateral Received			Net Assets Exposed
Derivatives	$	102	$	(22	)	$	80	$	(64	)	⁽¹⁾	$	(4	)	$	(2	)	$	10

	As of December 31, 2018
								Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Consolidated Balance Sheets			Net Presented in the Consolidated Balance Sheets		Financial Instruments				Cash Collateral Received			Non-Cash Collateral Received			Net Assets Exposed
Derivatives	$	569	$	(56	)	$	513	$	(90	)	⁽¹⁾	$	(307	)	$	(14	)	$	102


⁽¹⁾	The balances as of December 31, 2017 and 2018 were related to derivative liabilities which are allowed to be net settled against derivative assets in accordance with our master netting agreements.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Offsetting Liabilities [Table Text Block]

Offsetting of Liabilities



	As of December 31, 2017
								Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets			Net Presented in the Consolidated Balance Sheets		Financial Instruments				Cash Collateral Pledged		Non-Cash Collateral Pledged		Net Liabilities
Derivatives	$	374	$	(22	)	$	352	$	(64	)	⁽²⁾	$	0	$	0	$	288

	As of December 31, 2018
								Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets			Net Presented in the Consolidated Balance Sheets		Financial Instruments				Cash Collateral Pledged		Non-Cash Collateral Pledged		Net Liabilities
Derivatives	$	289	$	(56	)	$	233	$	(90	)	⁽²⁾	$	0	$	0	$	143


⁽²⁾	The balances as of December 31, 2017 and 2018 were related to derivative assets which are allowed to be net settled against derivative liabilities in accordance with our master netting agreements.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Derivative Instruments, Gain (Loss) [Table Text Block]

The gains (losses) on derivatives in cash flow hedging and net investment hedging relationships recognized in other comprehensive income (OCI) are summarized below (in millions):



	Gains (Losses) Recognized in OCI on Derivatives Before Tax Effect
	Year Ended December 31,
	2016		2017			2018
Derivatives in Cash Flow Hedging Relationship:
Foreign exchange contracts
Amount included in the assessment of effectiveness	$	773	$	(955	)	$	332
Amount excluded from the assessment of effectiveness	0		0			26
Derivatives in Net Investment Hedging Relationship:
Foreign exchange contracts
Amount included in the assessment of effectiveness	0		0			136
Total	$	773	$	(955	)	$	494

The effect of derivative instruments on income is summarized below (in millions):



	Gains (Losses) Recognized in Income
	Year Ended December 31,
	2016					2017						2018
	Revenues		Other income (expense), net			Revenues			Other income (expense), net			Revenues			Other income (expense), net
Total amounts presented in the Consolidated Statements of Income in which the effects of cash flow and fair value hedges are recorded	$	90,272	$	434		$	110,855		$	1,047		$	136,819		$	8,592

Gains (Losses) on Derivatives in Cash Flow Hedging Relationship:
Foreign exchange contracts
Amount of gains (losses) reclassified from AOCI to income	$	539	$	0		$	(169	)	$	0		$	(139	)	$	0
Amount excluded from the assessment of effectiveness recognized in earnings based on an amortization approach	0		0			0			0			1			0
Amount excluded from the assessment of effectiveness	0		(381		)	0			83			0			0
Gains (Losses) on Derivatives in Fair Value Hedging Relationship:
Foreign exchange contracts
Hedged items	0		(139		)	0			197			0			(96		)
Derivatives designated as hedging instruments	0		139			0			(197		)	0			96
Amount excluded from the assessment of effectiveness	0		6			0			23			0			37
Gains (Losses) on Derivatives in Net Investment Hedging Relationship:
Foreign exchange contracts
Amount excluded from the assessment of effectiveness	0		0			0			0			0			78
Gains (Losses) on Derivatives Not Designated as Hedging Instruments:
Foreign exchange contracts
Derivatives not designated as hedging instruments	0		130			0			(230		)	0			54
Total gains (losses)	$	539	$	(245	)	$	(169	)	$	(124	)	$	(138	)	$	169

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The fair values of our outstanding derivative instruments were as follows (in millions):



		As of December 31, 2017
	Balance Sheet Location	Fair Value of Derivatives Designated as Hedging Instruments		Fair Value of Derivatives Not Designated as Hedging Instruments		Total Fair Value
Derivative Assets:
Level 2:
Foreign exchange contracts	Other current and non-current assets	$	51	$	29	$	80
Total		$	51	$	29	$	80
Derivative Liabilities:
Level 2:
Foreign exchange contracts	Accrued expenses and other liabilities, current and non-current	$	230	$	122	$	352
Total		$	230	$	122	$	352



		As of December 31, 2018
	Balance Sheet Location	Fair Value of Derivatives Designated as Hedging Instruments		Fair Value of Derivatives Not Designated as Hedging Instruments		Total Fair Value
Derivative Assets:
Level 2:
Foreign exchange contracts	Other current and non-current assets	$	459	$	54	$	513
Total		$	459	$	54	$	513
Derivative Liabilities:
Level 2:
Foreign exchange contracts	Accrued expenses and other liabilities, current and non-current	$	5	$	228	$	233
Total		$	5	$	228	$	233

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Other Investments Not Readily Marketable [Table Text Block]



	Year Ended December 31,
	2017			2018
Beginning balance	$	1,165		$	1,894
Total net gains (losses)
Included in earnings	(10		)	603
Included in other comprehensive income	707			(1		)
Purchases	88			47
Sales	(2		)	(52		)
Settlements⁽¹⁾	(54		)	(2,228		)
Ending balance	$	1,894		$	263


⁽¹⁾	During the year ended December 31, 2018 the terms of a non-marketable debt security were modified resulting in an unrealized $1.3 billion gain recognized in other income (expense), net and a reclassification of the security to non-marketable equity securities.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Unrealized Loss on Investments [Table Text Block]



	As of December 31, 2017
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government bonds⁽¹⁾	$	28,836	$	(211	)	$	17,660	$	(195	)	$	46,496	$	(406	)
Corporate debt securities	18,300		(114		)	1,710		(21		)	20,010		(135		)
Mortgage-backed and asset-backed securities	11,061		(105		)	3,449		(75		)	14,510		(180		)
Total	$	58,197	$	(430	)	$	22,819	$	(291	)	$	81,016	$	(721	)



	As of December 31, 2018
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government bonds⁽¹⁾	$	12,019	$	(85	)	$	23,877	$	(329	)	$	35,896	$	(414	)
Corporate debt securities	10,171		(107		)	11,545		(209		)	21,716		(316		)
Mortgage-backed and asset-backed securities	5,534		(75		)	8,519		(249		)	14,053		(324		)
Total	$	27,724	$	(267	)	$	43,941	$	(787	)	$	71,665	$	(1,054	)


⁽¹⁾	Government bonds are comprised primarily of U.S. government notes, and also includes U.S. government agencies, foreign government bonds, and municipal securities.

Fact Table
Network	2306301 - Disclosure - Debt (Tables) (http://www.google.com/role/DebtTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Long-term Debt Instruments [Table Text Block]

The total outstanding long-term debt is summarized below (in millions):



	As of December 31, 2017			As of December 31, 2018
3.625% Notes due on May 19, 2021	$	1,000		$	1,000
3.375% Notes due on February 25, 2024	1,000			1,000
1.998% Notes due on August 15, 2026	2,000			2,000
Unamortized discount for the Notes above	(57		)	(50		)
Subtotal⁽¹⁾	3,943			3,950
Capital lease obligation	26			62
Total long-term debt	$	3,969		$	4,012


⁽¹⁾	Includes the outstanding (and unexchanged) Google Notes issued in 2011 and 2014 and the Alphabet notes exchanged in 2016.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Maturities of Long-term Debt [Table Text Block]

As of December 31, 2018, the aggregate future principal payments for long-term debt including long-term capital leases for each of the next five years and thereafter are as follows (in millions):



2019	$	0
2020	14
2021	1,003
2022	3
2023	3
Thereafter	3,039
Total	$	4,062

Fact Table
Network	2307301 - Disclosure - Supplemental Financial Statement Information (Tables) (http://www.google.com/role/SupplementalFinancialStatementInformationTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Property, Plant and Equipment [Table Text Block]

Property and equipment, net, consisted of the following (in millions):



	As of December 31, 2017			As of December 31, 2018
Land and buildings	$	23,183		$	30,179
Information technology assets	21,429			30,119
Construction in progress	10,491			16,838
Leasehold improvements	4,496			5,310
Furniture and fixtures	48			61
Property and equipment, gross	59,647			82,507
Less: accumulated depreciation	(17,264		)	(22,788		)
Property and equipment, net	$	42,383		$	59,719

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

The effects on net income of amounts reclassified from AOCI were as follows (in millions):



		Gains (Losses) Reclassified from AOCI to the Consolidated Statements of Income
		Year Ended December 31,
AOCI Components	Location	2016			2017			2018
Unrealized gains (losses) on available-for-sale investments
	Other income (expense), net	$	(221	)	$	(105	)	$	1,190
	Provision for income taxes	0			0			(279		)
	Net of tax	$	(221	)	$	(105	)	$	911
Unrealized gains (losses) on cash flow hedges
Foreign exchange contracts	Revenue	$	539		$	(169	)	$	(139	)
Interest rate contracts	Other income (expense), net	5			5			6
	Benefit (provision) for income taxes	(193		)	71			35
	Net of tax	$	351		$	(93	)	$	(98	)
Total amount reclassified, net of tax		$	130		$	(198	)	$	813

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Accrued Liabilities [Table Text Block]

Accrued expenses and other current liabilities consisted of the following (in millions):



	As of December 31, 2017		As of December 31, 2018
European Commission fines⁽¹⁾	$	2,874	$	7,754
Accrued customer liabilities	1,489		1,810
Other accrued expenses and current liabilities	5,814		7,394
Accrued expenses and other current liabilities	$	10,177	$	16,958


⁽¹⁾	Includes the effects of foreign exchange and interest. See Note 9 for further details

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The components of AOCI, net of tax, were as follows (in millions):



	Foreign Currency Translation Adjustments			Unrealized Gains (Losses) on Available-for-Sale Investments			Unrealized Gains (Losses) on Cash Flow Hedges			Total
Balance as of December 31, 2015	$	(2,047	)	$	(86	)	$	259		$	(1,874	)
Other comprehensive income (loss) before reclassifications	(599		)	(314		)	515			(398		)
Amounts reclassified from AOCI	0			221			(351		)	(130		)
Other comprehensive income (loss)	(599		)	(93		)	164			(528		)
Balance as of December 31, 2016	$	(2,646	)	$	(179	)	$	423		$	(2,402	)
Other comprehensive income (loss) before reclassifications	1,543			307			(638		)	1,212
Amounts reclassified from AOCI	0			105			93			198
Other comprehensive income (loss)	1,543			412			(545		)	1,410
Balance as of December 31, 2017	$	(1,103	)	$	233		$	(122	)	$	(992	)
Other comprehensive income (loss) before reclassifications⁽¹⁾	(781		)	(10		)	264			(527		)
Amounts excluded from the assessment of hedge effectiveness recorded in AOCI	0			0			26			26
Amounts reclassified from AOCI	0			(911		)	98			(813		)
Other comprehensive income (loss)	(781		)	(921		)	388			(1,314		)
Balance as of December 31, 2018	$	(1,884	)	$	(688	)	$	266		$	(2,306	)


⁽¹⁾	The change in unrealized gains (losses) on available-for-sale investments included a $98 million adjustment of net unrealized gains related to marketable equity securities from AOCI to opening retained earnings as a result of the adoption of ASU 2016-01 on January 1, 2018.

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Other Nonoperating Income (Expense) [Table Text Block]

The components of other income (expense), net, were as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
Interest income	$	1,220		$	1,312		$	1,878
Interest expense⁽¹⁾	(124		)	(109		)	(114		)
Foreign currency exchange losses, net⁽²⁾	(475		)	(121		)	(80		)
Gain (loss) on debt securities, net⁽³⁾	(53		)	(110		)	1,190
Gain (loss) on equity securities, net	(20		)	73			5,460
Loss and impairment from equity method investments, net	(202		)	(156		)	(120		)
Other	88			158			378
Other income (expense), net	$	434		$	1,047		$	8,592


⁽¹⁾	Interest expense is net of interest capitalized of $0 million, $48 million, and $92 million for the years ended December 31, 2016, 2017, and 2018, respectively.

⁽²⁾


⁽³⁾	During the year ended December 31, 2018, the terms of a non-marketable debt security were modified resulting in an unrealized $1.3 billion gain.

Fact Table
Network	2309301 - Disclosure - Goodwill and Other Intangible Assets (Tables) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

Information regarding purchased intangible assets were as follows (in millions):



	As of December 31, 2017
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Patents and developed technology	$	5,260	$	3,040	$	2,220
Customer relationships	359		263		96
Trade names and other	544		168		376
Total	$	6,163	$	3,471	$	2,692



	As of December 31, 2018
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
Patents and developed technology	$	5,125	$	3,394	$	1,731
Customer relationships	349		308		41
Trade names and other	703		255		448
Total	$	6,177	$	3,957	$	2,220

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Goodwill [Table Text Block]

Changes in the carrying amount of goodwill for the years ended December 31, 2017 and 2018 were as follows (in millions):



	Google			Other Bets			Total Consolidated
Balance as of December 31, 2016	$	16,027		$	441		$	16,468
Acquisitions	212			9			221
Foreign currency translation and other adjustments	56			2			58
Balance as of December 31, 2017	16,295			452			16,747
Acquisitions	1,227			0			1,227
Transfers	80			(80		)	0
Foreign currency translation and other adjustments	(81		)	(5		)	(86		)
Balance as of December 31, 2018	$	17,521		$	367		$	17,888

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

As of December 31, 2018, expected amortization expense relating to purchased intangible assets for each of the next five years and thereafter is as follows (in millions):



2019	$	712
2020	585
2021	533
2022	201
2023	7
Thereafter	182
	$	2,220

Fact Table
Network	2311301 - Disclosure - Commitments and Contingencies (Tables) (http://www.google.com/role/CommitmentsAndContingenciesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]



	Operating Leases⁽¹⁾		Sub-lease Income		Net Operating Leases
2019	$	1,319	$	16	$	1,303
2020	1,397		13		1,384
2021	1,337		10		1,327
2022	1,153		8		1,145
2023	980		3		977
Thereafter	3,916		5		3,911
Total minimum payments	$	10,102	$	55	$	10,047


⁽¹⁾	Includes future minimum payments for leases which have not yet commenced.

Fact Table
Network	2313301 - Disclosure - Net Income Per Share (Tables) (http://www.google.com/role/NetIncomePerShareTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]



	Year Ended December 31,
	2016
	Class A			Class B			Class C
Basic net income per share:
Numerator
Allocation of undistributed earnings	$	8,332		$	1,384		$	9,762
Denominator
Number of shares used in per share computation	294,217			48,859			344,702
Basic net income per share	$	28.32		$	28.32		$	28.32
Diluted net income per share:
Numerator
Allocation of undistributed earnings for basic computation	$	8,332		$	1,384		$	9,762
Effect of dilutive securities in equity method investments and subsidiaries	(9		)	(2		)	(10		)
Allocation of undistributed earnings for diluted computation	8,323			1,382			9,752
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	1,382			0			0
Reallocation of undistributed earnings	(94		)	(21		)	94
Allocation of undistributed earnings	$	9,611		$	1,361		$	9,846
Denominator
Number of shares used in basic computation	294,217			48,859			344,702
Weighted-average effect of dilutive securities
Add:
Conversion of Class B to Class A common shares outstanding	48,859			0			0
Restricted stock units and other contingently issuable shares	2,055			0			8,873
Number of shares used in per share computation	345,131			48,859			353,575
Diluted net income per share	$	27.85		$	27.85		$	27.85



	Year Ended December 31,
	2017
	Class A			Class B			Class C
Basic net income per share:
Numerator
Allocation of undistributed earnings	$	5,438		$	862		$	6,362
Denominator
Number of shares used in per share computation	297,604			47,146			348,151
Basic net income per share	$	18.27		$	18.27		$	18.27
Diluted net income per share:
Numerator
Allocation of undistributed earnings for basic computation	$	5,438		$	862		$	6,362
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	862			0			0
Reallocation of undistributed earnings	(74		)	(14		)	74
Allocation of undistributed earnings	$	6,226		$	848		$	6,436
Denominator
Number of shares used in basic computation	297,604			47,146			348,151
Weighted-average effect of dilutive securities
Add:
Conversion of Class B to Class A common shares outstanding	47,146			0			0
Restricted stock units and other contingently issuable shares	1,192			0			9,491
Number of shares used in per share computation	345,942			47,146			357,642
Diluted net income per share	$	18.00		$	18.00		$	18.00



	Year Ended December 31,
	2018
	Class A			Class B			Class C
Basic net income per share:
Numerator
Allocation of undistributed earnings	$	13,200		$	2,072		$	15,464
Denominator
Number of shares used in per share computation	298,548			46,864			349,728
Basic net income per share	$	44.22		$	44.22		$	44.22
Diluted net income per share:
Numerator
Allocation of undistributed earnings for basic computation	$	13,200		$	2,072		$	15,464
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	2,072			0			0
Reallocation of undistributed earnings	(146		)	(24		)	146
Allocation of undistributed earnings	$	15,126		$	2,048		$	15,610
Denominator
Number of shares used in basic computation	298,548			46,864			349,728
Weighted-average effect of dilutive securities
Add:
Conversion of Class B to Class A common shares outstanding	46,864			0			0
Restricted stock units and other contingently issuable shares	689			0			7,456
Number of shares used in per share computation	346,101			46,864			357,184
Diluted net income per share	$	43.70		$	43.70		$	43.70

Fact Table
Network	2314301 - Disclosure - Compensation Plans (Tables) (http://www.google.com/role/CompensationPlansTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

The following table summarizes the activities for our unvested RSUs for the year ended December 31, 2018:



	Unvested Restricted Stock Units
	Number of Shares		Weighted- Average Grant-Date Fair Value
Unvested as of December 31, 2017	20,077,346		$	712.45
Granted	12,669,251		$	1,095.89
Vested	(12,847,910	)	$	756.45
Forfeited/canceled	(1,431,009	)	$	814.19
Unvested as of December 31, 2018	18,467,678		$	936.96

Fact Table
Network	2315301 - Disclosure - Income Taxes (Tables) (http://www.google.com/role/IncomeTaxesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The provision for income taxes consists of the following (in millions):



	Year Ended December 31,
	2016			2017			2018
Current:
Federal and state	$	3,826		$	12,608		$	2,153
Foreign	966			1,746			1,251
Total	4,792			14,354			3,404
Deferred:
Federal and state	(70		)	220			907
Foreign	(50		)	(43		)	(134		)
Total	(120		)	177			773
Provision for income taxes	$	4,672		$	14,531		$	4,177

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

Significant components of our deferred tax assets and liabilities are as follows (in millions):



	As of December 31,
	2017			2018
Deferred tax assets:
Stock-based compensation expense	$	251		$	291
Accrued employee benefits	285			387
Accruals and reserves not currently deductible	717			1,062
Tax credits	1,187			1,979
Basis difference in investment in Arris	849			657
Prepaid cost sharing	498			597
Net operating losses	320			557
Other	244			251
Total deferred tax assets	4,351			5,781
Valuation allowance	(2,531		)	(2,817		)
Total deferred tax assets net of valuation allowance	1,820			2,964
Deferred tax liabilities:
Property and equipment	(551		)	(1,382		)
Identified intangibles	(419		)	(229		)
Renewable energy investments	(531		)	(500		)
Investment gains/losses	(22		)	(1,143		)
Other	(47		)	(237		)
Total deferred tax liabilities	(1,570		)	(3,491		)
Net deferred tax assets (liabilities)	$	250		$	(527	)

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The reconciliation of federal statutory income tax rate to our effective income tax rate is as follows:



	Year Ended December 31,
	2016		2017		2018
U.S. federal statutory tax rate	35.0	%	35.0	%	21.0	%
Foreign income taxed at different rates	(11.0	)	(14.2	)	(4.9	)
Effect of the Tax Act
One-time transition tax	0.0		37.6		(0.1	)
Deferred tax effects	0.0		(1.4	)	(1.2	)
Federal research credit	(2.0	)	(1.8	)	(2.4	)
Stock-based compensation expense	(3.4	)	(4.5	)	(2.2	)
European Commission fine	0.0		3.5		3.1
Deferred tax asset valuation allowance	0.1		0.9		(2.0	)
Other adjustments	0.6		(1.7	)	0.7
Effective tax rate	19.3	%	53.4	%	12.0	%

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Summary of Income Tax Contingencies [Table Text Block]

The following table summarizes the activity related to our gross unrecognized tax benefits from January 1, 2016 to December 31, 2018 (in millions):



	2016			2017			2018
Beginning gross unrecognized tax benefits	$	4,167		$	5,393		$	4,696
Increases related to prior year tax positions	899			685			321
Decreases related to prior year tax positions	(157		)	(257		)	(623		)
Decreases related to settlement with tax authorities	(196		)	(1,875		)	(191		)
Increases related to current year tax positions	680			750			449
Ending gross unrecognized tax benefits	$	5,393		$	4,696		$	4,652

Fact Table
Network	2316301 - Disclosure - Information about Segments and Geographic Areas (Tables) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Long-lived Assets by Geographic Areas [Table Text Block]

The following table presents our long-lived assets by geographic area (in millions):



	As of December 31, 2017		As of December 31, 2018
Long-lived assets:
United States	$	55,113	$	74,882
International	17,874		22,234
Total long-lived assets	$	72,987	$	97,116

0001652044 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Information about segments during the periods presented were as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
Revenues:
Google	$	89,984	$	110,378	$	136,224
Other Bets	288		477		595
Total revenues	$	90,272	$	110,855	$	136,819



	Year Ended December 31,
	2016			2017			2018
Operating income (loss):
Google	$	27,055		$	32,287		$	36,517
Other Bets	(2,741		)	(2,734		)	(3,358		)
Reconciling items⁽¹⁾	(598		)	(3,407		)	(6,838		)
Total income from operations	$	23,716		$	26,146		$	26,321


⁽¹⁾	Reconciling items are primarily comprised of the European Commission fines for the years ended December 31, 2017 and 2018, and performance fees for the year ended December 31, 2018, as well as corporate administrative costs and other miscellaneous items that are not allocated to individual segments for all periods presented.



	Year Ended December 31,
	2016			2017		2018
Capital expenditures:
Google	$	9,437		$	12,619	$	25,460
Other Bets	1,365			493		181
Reconciling items⁽²⁾	(590		)	72		(502		)
Total capital expenditures as presented on the Consolidated Statements of Cash Flows	$	10,212		$	13,184	$	25,139


⁽²⁾	Reconciling items are related to timing differences of payments as segment capital expenditures are on accrual basis while total capital expenditures shown on the Consolidated Statements of Cash Flow are on cash basis and other miscellaneous differences.

Stock-based compensation (SBC) and depreciation, amortization, and impairment are included in segment operating income (loss) as shown below (in millions):



	Year Ended December 31,
	2016		2017		2018
Stock-based compensation:
Google	$	6,201	$	7,168	$	8,755
Other Bets	372		363		489
Reconciling items⁽³⁾	130		148		109
Total stock-based compensation⁽⁴⁾	$	6,703	$	7,679	$	9,353

Depreciation, amortization, and impairment:
Google	$	5,882	$	6,608	$	8,708
Other Bets	258		307		327
Reconciling items⁽⁵⁾	4		—		—
Total depreciation, amortization, and impairment as presented on the Consolidated Statements of Cash Flows	$	6,144	$	6,915	$	9,035


⁽³⁾	Reconciling items represent corporate administrative costs that are not allocated to individual segments.


⁽⁴⁾	For purposes of segment reporting, SBC represents awards that we expect to settle in Alphabet stock.


⁽⁵⁾	Reconciling items are primarily related to corporate administrative costs and other miscellaneous items that are not allocated to individual segments.

Fact Table
Network	2401402 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details) (http://www.google.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Range [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Type of Adoption [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Property, Plant and Equipment, Type [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Scenario, Unspecified [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-133000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Type of Adoption [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Property, Plant and Equipment, Type [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Scenario, Unspecified [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Property, Plant and Equipment, Type [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Scenario, Unspecified [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-599000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01	Accounting Standards Update 2016-01 [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	98000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-01-01	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	98000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Maximum [Member]	Finite-Lived Intangible Asset, Useful Life	_2004720
22	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Minimum [Member]	Finite-Lived Intangible Asset, Useful Life	_2005310
23	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
24	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Type of Adoption [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
25	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Property, Plant and Equipment, Type [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
26	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
27	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Scenario, Unspecified [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
28	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
29	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Type of Adoption [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
30	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Property, Plant and Equipment, Type [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
31	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
32	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Scenario, Unspecified [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
33	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
34	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
35	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Property, Plant and Equipment, Type [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
36	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
37	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Scenario, Unspecified [Domain]	Goodwill, Impairment Loss	0	iso4217:USD	-9
38	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain]	Marketing and Advertising Expense	3900000000	iso4217:USD	-8
39	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Type of Adoption [Domain]	Marketing and Advertising Expense	3900000000	iso4217:USD	-8
40	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Property, Plant and Equipment, Type [Domain]	Marketing and Advertising Expense	3900000000	iso4217:USD	-8
41	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Marketing and Advertising Expense	3900000000	iso4217:USD	-8
42	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Scenario, Unspecified [Domain]	Marketing and Advertising Expense	3900000000	iso4217:USD	-8
43	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain]	Marketing and Advertising Expense	5100000000	iso4217:USD	-8
44	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Type of Adoption [Domain]	Marketing and Advertising Expense	5100000000	iso4217:USD	-8
45	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Property, Plant and Equipment, Type [Domain]	Marketing and Advertising Expense	5100000000	iso4217:USD	-8
46	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Marketing and Advertising Expense	5100000000	iso4217:USD	-8
47	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Scenario, Unspecified [Domain]	Marketing and Advertising Expense	5100000000	iso4217:USD	-8
48	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain]	Marketing and Advertising Expense	6400000000	iso4217:USD	-8
49	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	Marketing and Advertising Expense	6400000000	iso4217:USD	-8
50	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Property, Plant and Equipment, Type [Domain]	Marketing and Advertising Expense	6400000000	iso4217:USD	-8
51	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Marketing and Advertising Expense	6400000000	iso4217:USD	-8
52	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Scenario, Unspecified [Domain]	Marketing and Advertising Expense	6400000000	iso4217:USD	-8
53	0001652044 (http://www.sec.gov/CIK)	2019-01-01	Accounting Standards Update 2016-02 [Member]	Operating Lease, Liability	9000000000	iso4217:USD	-9
54	0001652044 (http://www.sec.gov/CIK)	2019-01-01	Scenario, Forecast [Member]	Operating Lease, Liability	9000000000	iso4217:USD	-9
55	0001652044 (http://www.sec.gov/CIK)	2019-01-01	Accounting Standards Update 2016-02 [Member]	Operating Lease, Right-of-Use Asset	9000000000	iso4217:USD	-9
56	0001652044 (http://www.sec.gov/CIK)	2019-01-01	Scenario, Forecast [Member]	Operating Lease, Right-of-Use Asset	9000000000	iso4217:USD	-9
57	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Maximum [Member]	Property, Plant and Equipment, Useful Life	_2025504
58	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:NetworkEquipmentMember (label)	Property, Plant and Equipment, Useful Life	_2026108
59	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Maximum [Member]	Property, Plant and Equipment, Useful Life	_2026698
60	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Building [Member]	Property, Plant and Equipment, Useful Life	_2027288
61	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Maximum [Member]	Property, Plant and Equipment, Useful Life	_2027878
62	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Technology Equipment [Member]	Property, Plant and Equipment, Useful Life	_2028468
63	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Minimum [Member]	Property, Plant and Equipment, Useful Life	_2029058
64	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:NetworkEquipmentMember (label)	Property, Plant and Equipment, Useful Life	_2029662
65	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Minimum [Member]	Property, Plant and Equipment, Useful Life	_2030252
66	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Building [Member]	Property, Plant and Equipment, Useful Life	_2030842
67	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Minimum [Member]	Property, Plant and Equipment, Useful Life	_2031432
68	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Technology Equipment [Member]	Property, Plant and Equipment, Useful Life	_2032022
69	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:ServerEquipmentMember (label)	Property, Plant and Equipment, Useful Life	_2032626
70	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain]	Retained Earnings (Accumulated Deficit)	113247000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	Retained Earnings (Accumulated Deficit)	113247000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Property, Plant and Equipment, Type [Domain]	Retained Earnings (Accumulated Deficit)	113247000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Retained Earnings (Accumulated Deficit)	113247000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Scenario, Unspecified [Domain]	Retained Earnings (Accumulated Deficit)	113247000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain]	Retained Earnings (Accumulated Deficit)	134885000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Type of Adoption [Domain]	Retained Earnings (Accumulated Deficit)	134885000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Property, Plant and Equipment, Type [Domain]	Retained Earnings (Accumulated Deficit)	134885000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	Retained Earnings (Accumulated Deficit)	134885000000	iso4217:USD	-6
79	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Scenario, Unspecified [Domain]	Retained Earnings (Accumulated Deficit)	134885000000	iso4217:USD	-6
80	0001652044 (http://www.sec.gov/CIK)	2018-01-01	Accounting Standards Update 2016-16 [Member]	Retained Earnings (Accumulated Deficit)	701000000	iso4217:USD	-6

Fact Table
Network	2402402 - Disclosure - Revenues (Revenue by Segment) (Details) (http://www.google.com/role/RevenuesRevenueBySegmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	Gain (Loss) on Hedging Activity	539000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	Gain (Loss) on Hedging Activity	-169000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	Gain (Loss) on Hedging Activity	-138000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Income Statement Location [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:AdvertisingRevenueMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	79383000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	79383000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleNetworkMembersPropertiesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	15598000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	15598000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GooglePropertiesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	63785000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	63785000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:OtherRevenuesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	10601000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	10601000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	89984000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Other Segments [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	288000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Statement Location [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:AdvertisingRevenueMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	95375000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	95375000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleNetworkMembersPropertiesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	17587000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	17587000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GooglePropertiesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	77788000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	77788000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:OtherRevenuesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	15003000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	15003000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	110378000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Other Segments [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	477000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Income Statement Location [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:AdvertisingRevenueMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	116318000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	116318000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleNetworkMembersPropertiesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	19982000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	19982000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GooglePropertiesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	96336000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	96336000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:OtherRevenuesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	19906000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	19906000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	136224000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Other Segments [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	595000000	iso4217:USD	-6

Fact Table
Network	2402403 - Disclosure - Revenues (Revenue by Geographic Location) (Details) (http://www.google.com/role/RevenuesRevenueByGeographicLocationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	UNITED STATES	Concentration Risk, Percentage	0.47	xbrli:pure	2
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.47	xbrli:pure	2
3	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.47	xbrli:pure	2
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:AmericasExcludingUnitedStatesMember (label)	Concentration Risk, Percentage	0.05	xbrli:pure	2
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.05	xbrli:pure	2
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.05	xbrli:pure	2
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Asia Pacific [Member]	Concentration Risk, Percentage	0.14	xbrli:pure	2
8	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.14	xbrli:pure	2
9	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.14	xbrli:pure	2
10	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	EMEA [Member]	Concentration Risk, Percentage	0.34	xbrli:pure	2
11	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.34	xbrli:pure	2
12	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.34	xbrli:pure	2
13	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	1.0	xbrli:pure	2
14	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	1.0	xbrli:pure	2
15	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	UNITED STATES	Concentration Risk, Percentage	0.47	xbrli:pure	2
16	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.47	xbrli:pure	2
17	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.47	xbrli:pure	2
18	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:AmericasExcludingUnitedStatesMember (label)	Concentration Risk, Percentage	0.05	xbrli:pure	2
19	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.05	xbrli:pure	2
20	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.05	xbrli:pure	2
21	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Asia Pacific [Member]	Concentration Risk, Percentage	0.15	xbrli:pure	2
22	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.15	xbrli:pure	2
23	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.15	xbrli:pure	2
24	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	EMEA [Member]	Concentration Risk, Percentage	0.33	xbrli:pure	2
25	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.33	xbrli:pure	2
26	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.33	xbrli:pure	2
27	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	1.0	xbrli:pure	2
28	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	1.0	xbrli:pure	2
29	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	UNITED STATES	Concentration Risk, Percentage	0.46	xbrli:pure	2
30	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.46	xbrli:pure	2
31	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.46	xbrli:pure	2
32	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:AmericasExcludingUnitedStatesMember (label)	Concentration Risk, Percentage	0.06	xbrli:pure	2
33	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.06	xbrli:pure	2
34	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.06	xbrli:pure	2
35	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Asia Pacific [Member]	Concentration Risk, Percentage	0.15	xbrli:pure	2
36	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.15	xbrli:pure	2
37	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.15	xbrli:pure	2
38	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	EMEA [Member]	Concentration Risk, Percentage	0.33	xbrli:pure	2
39	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	0.33	xbrli:pure	2
40	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	0.33	xbrli:pure	2
41	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales Revenue, Net [Member]	Concentration Risk, Percentage	1.0	xbrli:pure	2
42	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Geographic Concentration Risk [Member]	Concentration Risk, Percentage	1.0	xbrli:pure	2
43	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Concentration Risk Benchmark [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Concentration Risk Type [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	UNITED STATES	Revenue from Contract with Customer, Excluding Assessed Tax	42781000000	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:AmericasExcludingUnitedStatesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	4628000000	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Asia Pacific [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	12559000000	iso4217:USD	-6
49	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	EMEA [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	30304000000	iso4217:USD	-6
50	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
51	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Concentration Risk Benchmark [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
52	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Concentration Risk Type [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
53	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	UNITED STATES	Revenue from Contract with Customer, Excluding Assessed Tax	52449000000	iso4217:USD	-6
54	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:AmericasExcludingUnitedStatesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	6125000000	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Asia Pacific [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	16235000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	EMEA [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	36046000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Concentration Risk Benchmark [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Concentration Risk Type [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	UNITED STATES	Revenue from Contract with Customer, Excluding Assessed Tax	63269000000	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:AmericasExcludingUnitedStatesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	7609000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Asia Pacific [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	21374000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	EMEA [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	44567000000	iso4217:USD	-6

Fact Table
Network	2402404 - Disclosure - Revenues (Narrative) (Details) (http://www.google.com/role/RevenuesNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Contract with Customer, Liability, Revenue Recognized	1500000000		iso4217:USD	-8

Fact Table
Network	2403402 - Disclosure - Financial Instruments (Debt Securities) (Details) (http://www.google.com/role/FinancialInstrumentsDebtSecuritiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value Hierarchy and NAV [Domain]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	94182000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	94182000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	92288000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	51152000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	51152000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	16622000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	16622000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	359000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Bank Time Deposits [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	359000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	24155000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	24155000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 3 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	1894000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	1894000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hierarchy and NAV [Domain]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	97443000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	97443000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	97180000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	53291000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	53291000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	16605000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	16605000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	2202000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Bank Time Deposits [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	2202000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	25082000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	25082000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 3 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	263000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecurities (label)	263000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value Hierarchy and NAV [Domain]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	94048000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	94048000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	92965000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	51548000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	51548000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	16789000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	16789000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	359000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Bank Time Deposits [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	359000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	24269000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	24269000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 3 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	1083000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	1083000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hierarchy and NAV [Domain]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	98284000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	98284000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	98137000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	53634000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	53634000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	16918000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	16918000000	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	2202000000	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Bank Time Deposits [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	2202000000	iso4217:USD	-6
49	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	25383000000	iso4217:USD	-6
50	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	25383000000	iso4217:USD	-6
51	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 3 [Member]	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	147000000	iso4217:USD	-6
52	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	goog:CashCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCost (label)	147000000	iso4217:USD	-6
53	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value Hierarchy and NAV [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	855000000	iso4217:USD	-6
54	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	855000000	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	44000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	10000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	10000000	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	13000000	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	13000000	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	21000000	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	21000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 3 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	811000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	811000000	iso4217:USD	-6
64	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hierarchy and NAV [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	213000000	iso4217:USD	-6
65	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	213000000	iso4217:USD	-6
66	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	97000000	iso4217:USD	-6
67	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	71000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	71000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	11000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	11000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	15000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	15000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 3 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	116000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	116000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value Hierarchy and NAV [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	721000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	721000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	721000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	406000000	iso4217:USD	-6
79	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	406000000	iso4217:USD	-6
80	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	180000000	iso4217:USD	-6
81	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	180000000	iso4217:USD	-6
82	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	135000000	iso4217:USD	-6
83	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	135000000	iso4217:USD	-6
84	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 3 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	iso4217:USD	-6
85	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	iso4217:USD	-6
86	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hierarchy and NAV [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	1054000000	iso4217:USD	-6
87	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	1054000000	iso4217:USD	-6
88	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	1054000000	iso4217:USD	-6
89	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	414000000	iso4217:USD	-6
90	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	414000000	iso4217:USD	-6
91	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	324000000	iso4217:USD	-6
92	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	324000000	iso4217:USD	-6
93	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	316000000	iso4217:USD	-6
94	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	316000000	iso4217:USD	-6
95	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 3 [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	iso4217:USD	-6
96	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	iso4217:USD	-6
97	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	90564000000	iso4217:USD	-6
98	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	49911000000	iso4217:USD	-6
99	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale	49911000000	iso4217:USD	-6
100	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	16622000000	iso4217:USD	-6
101	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale	16622000000	iso4217:USD	-6
102	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	2000000	iso4217:USD	-6
103	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Bank Time Deposits [Member]	Debt Securities, Available-for-sale	2000000	iso4217:USD	-6
104	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	24029000000	iso4217:USD	-6
105	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale	24029000000	iso4217:USD	-6
106	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MarketableDebtSecuritiesMember (label)	Debt Securities, Available-for-sale	90564000000	iso4217:USD	-6
107	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hierarchy and NAV [Domain]	Debt Securities, Available-for-sale	91217000000	iso4217:USD	-6
108	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale	91217000000	iso4217:USD	-6
109	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	91217000000	iso4217:USD	-6
110	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	49574000000	iso4217:USD	-6
111	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale	49574000000	iso4217:USD	-6
112	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	16605000000	iso4217:USD	-6
113	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale	16605000000	iso4217:USD	-6
114	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	0	iso4217:USD	-6
115	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Bank Time Deposits [Member]	Debt Securities, Available-for-sale	0	iso4217:USD	-6
116	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Debt Securities, Available-for-sale	25038000000	iso4217:USD	-6
117	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale	25038000000	iso4217:USD	-6
118	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MarketableDebtSecuritiesMember (label)	Debt Securities, Available-for-sale	91217000000	iso4217:USD	-6
119	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value Hierarchy and NAV [Domain]	Cash and Cash Equivalents, Fair Value Disclosure	1833000000	iso4217:USD	-6
120	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Cash and Cash Equivalents, Fair Value Disclosure	1833000000	iso4217:USD	-6
121	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	1724000000	iso4217:USD	-6
122	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	1241000000	iso4217:USD	-6
123	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Cash and Cash Equivalents, Fair Value Disclosure	1241000000	iso4217:USD	-6
124	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
125	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
126	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	357000000	iso4217:USD	-6
127	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Bank Time Deposits [Member]	Cash and Cash Equivalents, Fair Value Disclosure	357000000	iso4217:USD	-6
128	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	126000000	iso4217:USD	-6
129	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Cash and Cash Equivalents, Fair Value Disclosure	126000000	iso4217:USD	-6
130	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
131	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Debt Securities [Member]	Cash and Cash Equivalents, Fair Value Disclosure	1724000000	iso4217:USD	-6
132	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hierarchy and NAV [Domain]	Cash and Cash Equivalents, Fair Value Disclosure	3493000000	iso4217:USD	-6
133	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Cash and Cash Equivalents, Fair Value Disclosure	3493000000	iso4217:USD	-6
134	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	5963000000	iso4217:USD	-6
135	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	3717000000	iso4217:USD	-6
136	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Cash and Cash Equivalents, Fair Value Disclosure	3717000000	iso4217:USD	-6
137	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
138	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
139	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	2202000000	iso4217:USD	-6
140	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Bank Time Deposits [Member]	Cash and Cash Equivalents, Fair Value Disclosure	2202000000	iso4217:USD	-6
141	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	44000000	iso4217:USD	-6
142	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Cash and Cash Equivalents, Fair Value Disclosure	44000000	iso4217:USD	-6
143	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
144	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Debt Securities [Member]	Cash and Cash Equivalents, Fair Value Disclosure	5963000000	iso4217:USD	-6
145	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 3 [Member]	Investments, Fair Value Disclosure	1894000000	iso4217:USD	-6
146	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Investments, Fair Value Disclosure	1894000000	iso4217:USD	-6
147	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Investments, Fair Value Disclosure	1894000000	iso4217:USD	-6
148	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 3 [Member]	Investments, Fair Value Disclosure	263000000	iso4217:USD	-6
149	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Investments, Fair Value Disclosure	263000000	iso4217:USD	-6
150	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Investments, Fair Value Disclosure	263000000	iso4217:USD	-6

Fact Table
Network	2403403 - Disclosure - Financial Instruments (Narrative) (Details) (http://www.google.com/role/FinancialInstrumentsNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Type of Adoption [Domain]	goog:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax (label)	247000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Derivative Contract [Domain]	goog:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax (label)	247000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Relationship [Domain]	goog:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax (label)	247000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Designation [Domain]	goog:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax (label)	247000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	goog:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax (label)	247000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Valuation Approach and Technique [Domain]	goog:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax (label)	247000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	15000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Derivative Contract [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	15000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Relationship [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	15000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Designation [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	15000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	15000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Valuation Approach and Technique [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	15000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Type of Adoption [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	327000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Derivative Contract [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	327000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Relationship [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	327000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Designation [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	327000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	327000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Valuation Approach and Technique [Domain]	goog:CashCollateralReceivedFromDerivativeFinancialInstruments (label)	327000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount (label)	4107000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount (label)	4107000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Relationship [Domain]	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount (label)	4107000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Designation [Domain]	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount (label)	4107000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount (label)	4107000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Valuation Approach and Technique [Domain]	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount (label)	4107000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Foreign Exchange Contract [Member]	Derivative, Notional Amount	11700000000	iso4217:USD	-8
26	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Cash Flow Hedging [Member]	Derivative, Notional Amount	11700000000	iso4217:USD	-8
27	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Foreign Exchange Contract [Member]	Derivative, Notional Amount	2900000000	iso4217:USD	-8
28	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value Hedging [Member]	Derivative, Notional Amount	2900000000	iso4217:USD	-8
29	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Foreign Exchange Contract [Member]	Derivative, Notional Amount	15200000000	iso4217:USD	-8
30	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Not Designated as Hedging Instrument [Member]	Derivative, Notional Amount	15200000000	iso4217:USD	-8
31	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative, Notional Amount	11800000000	iso4217:USD	-8
32	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Cash Flow Hedging [Member]	Derivative, Notional Amount	11800000000	iso4217:USD	-8
33	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative, Notional Amount	2000000000	iso4217:USD	-8
34	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hedging [Member]	Derivative, Notional Amount	2000000000	iso4217:USD	-8
35	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative, Notional Amount	6700000000	iso4217:USD	-8
36	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Net Investment Hedging [Member]	Derivative, Notional Amount	6700000000	iso4217:USD	-8
37	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative, Notional Amount	20100000000	iso4217:USD	-8
38	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Not Designated as Hedging Instrument [Member]	Derivative, Notional Amount	20100000000	iso4217:USD	-8
39	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	Cost Method Investments	4500000000	iso4217:USD	-8
40	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Derivative Contract [Domain]	Cost Method Investments	4500000000	iso4217:USD	-8
41	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Relationship [Domain]	Cost Method Investments	4500000000	iso4217:USD	-8
42	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Designation [Domain]	Cost Method Investments	4500000000	iso4217:USD	-8
43	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Cost Method Investments	4500000000	iso4217:USD	-8
44	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Valuation Approach and Technique [Domain]	Cost Method Investments	4500000000	iso4217:USD	-8
45	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	Cost Method Investments, Fair Value Disclosure	8800000000	iso4217:USD	-8
46	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Derivative Contract [Domain]	Cost Method Investments, Fair Value Disclosure	8800000000	iso4217:USD	-8
47	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Relationship [Domain]	Cost Method Investments, Fair Value Disclosure	8800000000	iso4217:USD	-8
48	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Designation [Domain]	Cost Method Investments, Fair Value Disclosure	8800000000	iso4217:USD	-8
49	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Cost Method Investments, Fair Value Disclosure	8800000000	iso4217:USD	-8
50	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Valuation Approach and Technique [Domain]	Cost Method Investments, Fair Value Disclosure	8800000000	iso4217:USD	-8
51	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Type of Adoption [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
52	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Derivative Contract [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
53	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Hedging Relationship [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
54	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Hedging Designation [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Valuation Approach and Technique [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2015-12-31	AOCI Attributable to Parent [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	0	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-133000000	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Type of Adoption [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Derivative Contract [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Hedging Relationship [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Hedging Designation [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
64	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Valuation Approach and Technique [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
65	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
66	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
67	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Derivative Contract [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Relationship [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Designation [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Valuation Approach and Technique [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2017-12-31	AOCI Attributable to Parent [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-98000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-599000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2018-01-01	Accounting Standards Update 2016-01 [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	98000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2018-01-01	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	98000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Type of Adoption [Domain]	Debt Securities, Available-for-sale, Realized Gain	251000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Derivative Contract [Domain]	Debt Securities, Available-for-sale, Realized Gain	251000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Hedging Relationship [Domain]	Debt Securities, Available-for-sale, Realized Gain	251000000	iso4217:USD	-6
79	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Hedging Designation [Domain]	Debt Securities, Available-for-sale, Realized Gain	251000000	iso4217:USD	-6
80	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Debt Securities, Available-for-sale, Realized Gain	251000000	iso4217:USD	-6
81	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Valuation Approach and Technique [Domain]	Debt Securities, Available-for-sale, Realized Gain	251000000	iso4217:USD	-6
82	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Type of Adoption [Domain]	Debt Securities, Available-for-sale, Realized Gain	185000000	iso4217:USD	-6
83	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Debt Securities, Available-for-sale, Realized Gain	185000000	iso4217:USD	-6
84	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Relationship [Domain]	Debt Securities, Available-for-sale, Realized Gain	185000000	iso4217:USD	-6
85	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Designation [Domain]	Debt Securities, Available-for-sale, Realized Gain	185000000	iso4217:USD	-6
86	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Debt Securities, Available-for-sale, Realized Gain	185000000	iso4217:USD	-6
87	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Valuation Approach and Technique [Domain]	Debt Securities, Available-for-sale, Realized Gain	185000000	iso4217:USD	-6
88	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	Debt Securities, Available-for-sale, Realized Gain	1300000000	iso4217:USD	-8
89	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Debt Securities, Available-for-sale, Realized Gain	1300000000	iso4217:USD	-8
90	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Relationship [Domain]	Debt Securities, Available-for-sale, Realized Gain	1300000000	iso4217:USD	-8
91	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Designation [Domain]	Debt Securities, Available-for-sale, Realized Gain	1300000000	iso4217:USD	-8
92	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Debt Securities, Available-for-sale, Realized Gain	1300000000	iso4217:USD	-8
93	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Valuation Approach and Technique [Domain]	Debt Securities, Available-for-sale, Realized Gain	1300000000	iso4217:USD	-8
94	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Type of Adoption [Domain]	Debt Securities, Available-for-sale, Realized Loss	304000000	iso4217:USD	-6
95	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Derivative Contract [Domain]	Debt Securities, Available-for-sale, Realized Loss	304000000	iso4217:USD	-6
96	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Hedging Relationship [Domain]	Debt Securities, Available-for-sale, Realized Loss	304000000	iso4217:USD	-6
97	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Hedging Designation [Domain]	Debt Securities, Available-for-sale, Realized Loss	304000000	iso4217:USD	-6
98	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Debt Securities, Available-for-sale, Realized Loss	304000000	iso4217:USD	-6
99	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Valuation Approach and Technique [Domain]	Debt Securities, Available-for-sale, Realized Loss	304000000	iso4217:USD	-6
100	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Type of Adoption [Domain]	Debt Securities, Available-for-sale, Realized Loss	295000000	iso4217:USD	-6
101	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Debt Securities, Available-for-sale, Realized Loss	295000000	iso4217:USD	-6
102	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Relationship [Domain]	Debt Securities, Available-for-sale, Realized Loss	295000000	iso4217:USD	-6
103	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Designation [Domain]	Debt Securities, Available-for-sale, Realized Loss	295000000	iso4217:USD	-6
104	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Debt Securities, Available-for-sale, Realized Loss	295000000	iso4217:USD	-6
105	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Valuation Approach and Technique [Domain]	Debt Securities, Available-for-sale, Realized Loss	295000000	iso4217:USD	-6
106	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	Debt Securities, Available-for-sale, Realized Loss	143000000	iso4217:USD	-6
107	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Debt Securities, Available-for-sale, Realized Loss	143000000	iso4217:USD	-6
108	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Relationship [Domain]	Debt Securities, Available-for-sale, Realized Loss	143000000	iso4217:USD	-6
109	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Designation [Domain]	Debt Securities, Available-for-sale, Realized Loss	143000000	iso4217:USD	-6
110	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Debt Securities, Available-for-sale, Realized Loss	143000000	iso4217:USD	-6
111	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Valuation Approach and Technique [Domain]	Debt Securities, Available-for-sale, Realized Loss	143000000	iso4217:USD	-6
112	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Derivative, Remaining Maturity	_1809968
113	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash Flow Hedging [Member]	Derivative, Remaining Maturity	_1810558
114	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	Equity Method Investments	1400000000	iso4217:USD	-8
115	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Derivative Contract [Domain]	Equity Method Investments	1400000000	iso4217:USD	-8
116	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Relationship [Domain]	Equity Method Investments	1400000000	iso4217:USD	-8
117	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Designation [Domain]	Equity Method Investments	1400000000	iso4217:USD	-8
118	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Equity Method Investments	1400000000	iso4217:USD	-8
119	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Valuation Approach and Technique [Domain]	Equity Method Investments	1400000000	iso4217:USD	-8
120	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Type of Adoption [Domain]	Equity Method Investments	1300000000	iso4217:USD	-8
121	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Derivative Contract [Domain]	Equity Method Investments	1300000000	iso4217:USD	-8
122	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Relationship [Domain]	Equity Method Investments	1300000000	iso4217:USD	-8
123	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Designation [Domain]	Equity Method Investments	1300000000	iso4217:USD	-8
124	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	Equity Method Investments	1300000000	iso4217:USD	-8
125	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Valuation Approach and Technique [Domain]	Equity Method Investments	1300000000	iso4217:USD	-8
126	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Type of Adoption [Domain]	Equity Securities without Readily Determinable Fair Value, Amount	12275000000	iso4217:USD	-6
127	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Derivative Contract [Domain]	Equity Securities without Readily Determinable Fair Value, Amount	12275000000	iso4217:USD	-6
128	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Relationship [Domain]	Equity Securities without Readily Determinable Fair Value, Amount	12275000000	iso4217:USD	-6
129	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Designation [Domain]	Equity Securities without Readily Determinable Fair Value, Amount	12275000000	iso4217:USD	-6
130	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	Equity Securities without Readily Determinable Fair Value, Amount	12275000000	iso4217:USD	-6
131	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Valuation Approach and Technique [Domain]	Equity Securities without Readily Determinable Fair Value, Amount	12275000000	iso4217:USD	-6
132	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Valuation, Market Approach [Member]	Equity Securities without Readily Determinable Fair Value, Amount	6900000000	iso4217:USD	-8
133	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Type of Adoption [Domain]	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	-4285000000	iso4217:USD	-6
134	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Derivative Contract [Domain]	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	-4285000000	iso4217:USD	-6
135	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Relationship [Domain]	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	-4285000000	iso4217:USD	-6
136	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Designation [Domain]	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	-4285000000	iso4217:USD	-6
137	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	-4285000000	iso4217:USD	-6
138	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Valuation Approach and Technique [Domain]	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	-4285000000	iso4217:USD	-6
139	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Valuation, Market Approach [Member]	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	4100000000	iso4217:USD	-8
140	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Type of Adoption [Domain]	Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	247000000	iso4217:USD	-6
141	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Derivative Contract [Domain]	Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	247000000	iso4217:USD	-6
142	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Relationship [Domain]	Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	247000000	iso4217:USD	-6
143	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Designation [Domain]	Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	247000000	iso4217:USD	-6
144	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	247000000	iso4217:USD	-6
145	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Valuation Approach and Technique [Domain]	Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	247000000	iso4217:USD	-6
146	0001652044 (http://www.sec.gov/CIK)	2015-01-01 to 2015-12-31	Type of Adoption [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
147	0001652044 (http://www.sec.gov/CIK)	2015-01-01 to 2015-12-31	Derivative Contract [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
148	0001652044 (http://www.sec.gov/CIK)	2015-01-01 to 2015-12-31	Hedging Relationship [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
149	0001652044 (http://www.sec.gov/CIK)	2015-01-01 to 2015-12-31	Hedging Designation [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
150	0001652044 (http://www.sec.gov/CIK)	2015-01-01 to 2015-12-31	Equity Component [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
151	0001652044 (http://www.sec.gov/CIK)	2015-01-01 to 2015-12-31	Valuation Approach and Technique [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
152	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Type of Adoption [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
153	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
154	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Relationship [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
155	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Designation [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
156	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
157	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Valuation Approach and Technique [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
158	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
159	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
160	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Relationship [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
161	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Designation [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
162	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6
163	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Valuation Approach and Technique [Domain]	Other than Temporary Impairment Losses, Investments	0	iso4217:USD	-6

Fact Table
Network	2403404 - Disclosure - Financial Instruments (Contractual Maturity Date of Marketable Debt Securities) (Details) (http://www.google.com/role/FinancialInstrumentsContractualMaturityDateOfMarketableDebtSecuritiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	2236000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value	54504000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value	10808000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value	23669000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Debt Securities, Available-for-sale	91217000000	iso4217:USD	-6

Fact Table
Network	2403405 - Disclosure - Financial Instruments (Gross Unrealized Losses and Fair Values for Investments in Unrealized Loss Position) (Details) (http://www.google.com/role/FinancialInstrumentsGrossUnrealizedLossesAndFairValuesForInvestmentsInUnrealizedLossPositionDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	22819000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	17660000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	3449000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1710000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	43941000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	23877000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	8519000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	11545000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	291000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	195000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	75000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	21000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	787000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	329000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	249000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	209000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	58197000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	28836000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	11061000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	18300000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	27724000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	12019000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	5534000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	10171000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	430000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	211000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	105000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	114000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	267000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	85000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	75000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	107000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Unrealized Loss Position	81016000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Unrealized Loss Position	46496000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Unrealized Loss Position	14510000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Unrealized Loss Position	20010000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Unrealized Loss Position	71665000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Unrealized Loss Position	35896000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Unrealized Loss Position	14053000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Unrealized Loss Position	21716000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	721000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	406000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	180000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	135000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	1054000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GovernmentBondsMember (label)	Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	414000000	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MortgageBackedandAssetBackedSecuritiesMember (label)	Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	324000000	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	316000000	iso4217:USD	-6

Fact Table
Network	2403406 - Disclosure - Financial Instruments (Non-Marketable Debt Securities) (Details) (http://www.google.com/role/FinancialInstrumentsNonMarketableDebtSecuritiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Asset Class [Domain]	goog:DebtSecuritiesUnrealizedGainLossOnExtinguishmentOfSecurities (label)	1300000000	iso4217:USD	-8
2	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value Hierarchy and NAV [Domain]	goog:DebtSecuritiesUnrealizedGainLossOnExtinguishmentOfSecurities (label)	1300000000	iso4217:USD	-8
3	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	goog:OtherInvestmentNotReadilyMarketableRealizedGainLossIncludedInEarnings (label)	-10000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value, Inputs, Level 3 [Member]	goog:OtherInvestmentNotReadilyMarketableRealizedGainLossIncludedInEarnings (label)	-10000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	goog:OtherInvestmentNotReadilyMarketableRealizedGainLossIncludedInEarnings (label)	603000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value, Inputs, Level 3 [Member]	goog:OtherInvestmentNotReadilyMarketableRealizedGainLossIncludedInEarnings (label)	603000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	goog:OtherInvestmentNotReadilyMarketableSettlementsDuringPeriod (label)	54000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value, Inputs, Level 3 [Member]	goog:OtherInvestmentNotReadilyMarketableSettlementsDuringPeriod (label)	54000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	goog:OtherInvestmentNotReadilyMarketableSettlementsDuringPeriod (label)	2228000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value, Inputs, Level 3 [Member]	goog:OtherInvestmentNotReadilyMarketableSettlementsDuringPeriod (label)	2228000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	707000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value, Inputs, Level 3 [Member]	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	707000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	-1000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value, Inputs, Level 3 [Member]	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	-1000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	88000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value, Inputs, Level 3 [Member]	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	88000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	47000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value, Inputs, Level 3 [Member]	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	47000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales	2000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value, Inputs, Level 3 [Member]	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales	2000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales	52000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value, Inputs, Level 3 [Member]	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales	52000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2016-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	1165000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Fair Value, Inputs, Level 3 [Member]	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	1165000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	1894000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 3 [Member]	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	1894000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:NonMarketableDebtSecuritiesMember (label)	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	263000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 3 [Member]	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	263000000	iso4217:USD	-6

Fact Table
Network	2403407 - Disclosure - Financial Instruments (Marketable Equity Securities) (Details) (http://www.google.com/role/FinancialInstrumentsMarketableEquitySecuritiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value Hierarchy and NAV [Domain]	Cash and Cash Equivalents, Fair Value Disclosure	1833000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Financial Instruments [Domain]	Cash and Cash Equivalents, Fair Value Disclosure	1833000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 1 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	1833000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 1 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MarketableEquitySecuritiesMember (label)	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 1 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	1833000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MoneyMarketAndOtherFundsMember (label)	Cash and Cash Equivalents, Fair Value Disclosure	1833000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	1724000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	1241000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	357000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	126000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Mutual Fund [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hierarchy and NAV [Domain]	Cash and Cash Equivalents, Fair Value Disclosure	3493000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Financial Instruments [Domain]	Cash and Cash Equivalents, Fair Value Disclosure	3493000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 1 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	3493000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 1 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MarketableEquitySecuritiesMember (label)	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 1 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	3493000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MoneyMarketAndOtherFundsMember (label)	Cash and Cash Equivalents, Fair Value Disclosure	3493000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	5963000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	3717000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	2202000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	44000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Mutual Fund [Member]	Cash and Cash Equivalents, Fair Value Disclosure	0	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 1 [Member]	Equity Securities, FV-NI	340000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 1 [Member]	Equity Securities, FV-NI	340000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MarketableEquitySecuritiesMember (label)	Equity Securities, FV-NI	340000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 1 [Member]	Equity Securities, FV-NI	0	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MoneyMarketAndOtherFundsMember (label)	Equity Securities, FV-NI	0	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Equity Securities, FV-NI	252000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Mutual Fund [Member]	Equity Securities, FV-NI	252000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:MarketableEquitySecuritiesMember (label)	Equity Securities, FV-NI	592000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 1 [Member]	Equity Securities, FV-NI	994000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 1 [Member]	Equity Securities, FV-NI	994000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MarketableEquitySecuritiesMember (label)	Equity Securities, FV-NI	994000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 1 [Member]	Equity Securities, FV-NI	0	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MoneyMarketAndOtherFundsMember (label)	Equity Securities, FV-NI	0	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Equity Securities, FV-NI	228000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Mutual Fund [Member]	Equity Securities, FV-NI	228000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:MarketableEquitySecuritiesMember (label)	Equity Securities, FV-NI	1222000000	iso4217:USD	-6

Fact Table
Network	2403408 - Disclosure - Financial Instruments (Measurement Alternative Investments) (Details) (http://www.google.com/role/FinancialInstrumentsMeasurementAlternativeInvestmentsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Extinguishment of Debt, Type [Domain]	goog:EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount (label)	4107000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Extinguishment of Debt, Type [Domain]	goog:EquitySecuritieswithoutReadilyDeterminableFairValueCostBasis (label)	8168000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:EquitySecuritiesOriginationUponExtinguishmentOfDebtSecuritiesMember (label)	goog:EquitySecuritieswithoutReadilyDeterminableFairValueCostBasis (label)	2200000000	iso4217:USD	-8
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities, FV-NI, Gain (Loss)	-20000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities, FV-NI, Gain (Loss)	73000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities, FV-NI, Gain (Loss)	5460000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities, FV-NI, Realized Gain (Loss)	1458000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities, FV-NI, Unrealized Gain (Loss)	4002000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities without Readily Determinable Fair Value, Amount	12275000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount	178000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Cumulative Amount	-178000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount	4285000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Extinguishment of Debt, Type [Domain]	Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	-4285000000	iso4217:USD	-6

Fact Table
Network	2403409 - Disclosure - Financial Instruments (Fair Values of Outstanding Derivative Instruments) (Details) (http://www.google.com/role/FinancialInstrumentsFairValuesOfOutstandingDerivativeInstrumentsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Balance Sheet Location [Domain]	Derivative Asset, Fair Value, Gross Asset	102000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value Hierarchy and NAV [Domain]	Derivative Asset, Fair Value, Gross Asset	102000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Designation [Domain]	Derivative Asset, Fair Value, Gross Asset	102000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Investments [Domain]	Derivative Asset, Fair Value, Gross Asset	102000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Other Assets [Member]	Derivative Asset, Fair Value, Gross Asset	51000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	51000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Designated as Hedging Instrument [Member]	Derivative Asset, Fair Value, Gross Asset	51000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Foreign Exchange Contract [Member]	Derivative Asset, Fair Value, Gross Asset	51000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Other Assets [Member]	Derivative Asset, Fair Value, Gross Asset	29000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	29000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Not Designated as Hedging Instrument [Member]	Derivative Asset, Fair Value, Gross Asset	29000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Foreign Exchange Contract [Member]	Derivative Asset, Fair Value, Gross Asset	29000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Other Assets [Member]	Derivative Asset, Fair Value, Gross Asset	80000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	80000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Foreign Exchange Contract [Member]	Derivative Asset, Fair Value, Gross Asset	80000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	80000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	51000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Designated as Hedging Instrument [Member]	Derivative Asset, Fair Value, Gross Asset	51000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	29000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Not Designated as Hedging Instrument [Member]	Derivative Asset, Fair Value, Gross Asset	29000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Balance Sheet Location [Domain]	Derivative Asset, Fair Value, Gross Asset	569000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hierarchy and NAV [Domain]	Derivative Asset, Fair Value, Gross Asset	569000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Designation [Domain]	Derivative Asset, Fair Value, Gross Asset	569000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Investments [Domain]	Derivative Asset, Fair Value, Gross Asset	569000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Other Assets [Member]	Derivative Asset, Fair Value, Gross Asset	459000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	459000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Designated as Hedging Instrument [Member]	Derivative Asset, Fair Value, Gross Asset	459000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative Asset, Fair Value, Gross Asset	459000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Other Assets [Member]	Derivative Asset, Fair Value, Gross Asset	54000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	54000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Not Designated as Hedging Instrument [Member]	Derivative Asset, Fair Value, Gross Asset	54000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative Asset, Fair Value, Gross Asset	54000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Other Assets [Member]	Derivative Asset, Fair Value, Gross Asset	513000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	513000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative Asset, Fair Value, Gross Asset	513000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	513000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	459000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Designated as Hedging Instrument [Member]	Derivative Asset, Fair Value, Gross Asset	459000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Asset, Fair Value, Gross Asset	54000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Not Designated as Hedging Instrument [Member]	Derivative Asset, Fair Value, Gross Asset	54000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Balance Sheet Location [Domain]	Derivative Liability, Fair Value, Gross Liability	374000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value Hierarchy and NAV [Domain]	Derivative Liability, Fair Value, Gross Liability	374000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Hedging Designation [Domain]	Derivative Liability, Fair Value, Gross Liability	374000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Investments [Domain]	Derivative Liability, Fair Value, Gross Liability	374000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember (label)	Derivative Liability, Fair Value, Gross Liability	230000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	230000000	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Designated as Hedging Instrument [Member]	Derivative Liability, Fair Value, Gross Liability	230000000	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Foreign Exchange Contract [Member]	Derivative Liability, Fair Value, Gross Liability	230000000	iso4217:USD	-6
49	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember (label)	Derivative Liability, Fair Value, Gross Liability	122000000	iso4217:USD	-6
50	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	122000000	iso4217:USD	-6
51	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Not Designated as Hedging Instrument [Member]	Derivative Liability, Fair Value, Gross Liability	122000000	iso4217:USD	-6
52	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Foreign Exchange Contract [Member]	Derivative Liability, Fair Value, Gross Liability	122000000	iso4217:USD	-6
53	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember (label)	Derivative Liability, Fair Value, Gross Liability	352000000	iso4217:USD	-6
54	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	352000000	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Foreign Exchange Contract [Member]	Derivative Liability, Fair Value, Gross Liability	352000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	352000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	230000000	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Designated as Hedging Instrument [Member]	Derivative Liability, Fair Value, Gross Liability	230000000	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	122000000	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Not Designated as Hedging Instrument [Member]	Derivative Liability, Fair Value, Gross Liability	122000000	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Balance Sheet Location [Domain]	Derivative Liability, Fair Value, Gross Liability	289000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value Hierarchy and NAV [Domain]	Derivative Liability, Fair Value, Gross Liability	289000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Hedging Designation [Domain]	Derivative Liability, Fair Value, Gross Liability	289000000	iso4217:USD	-6
64	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Investments [Domain]	Derivative Liability, Fair Value, Gross Liability	289000000	iso4217:USD	-6
65	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember (label)	Derivative Liability, Fair Value, Gross Liability	5000000	iso4217:USD	-6
66	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	5000000	iso4217:USD	-6
67	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Designated as Hedging Instrument [Member]	Derivative Liability, Fair Value, Gross Liability	5000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative Liability, Fair Value, Gross Liability	5000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember (label)	Derivative Liability, Fair Value, Gross Liability	228000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	228000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Not Designated as Hedging Instrument [Member]	Derivative Liability, Fair Value, Gross Liability	228000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative Liability, Fair Value, Gross Liability	228000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:AccruedExpensesAndOtherLiabilitiesCurrentAndNonCurrentMember (label)	Derivative Liability, Fair Value, Gross Liability	233000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	233000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Exchange Contract [Member]	Derivative Liability, Fair Value, Gross Liability	233000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	233000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	5000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Designated as Hedging Instrument [Member]	Derivative Liability, Fair Value, Gross Liability	5000000	iso4217:USD	-6
79	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Fair Value, Inputs, Level 2 [Member]	Derivative Liability, Fair Value, Gross Liability	228000000	iso4217:USD	-6
80	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Not Designated as Hedging Instrument [Member]	Derivative Liability, Fair Value, Gross Liability	228000000	iso4217:USD	-6

Fact Table
Network	2403410 - Disclosure - Financial Instruments (Effect of Derivative Instruments on Income and Accumulated Other Comprehensive Income) (Details) (http://www.google.com/role/FinancialInstrumentsEffectOfDerivativeInstrumentsOnIncomeAndAccumulatedOtherComprehensiveIncomeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Cash Flow Hedging [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Nonoperating Income (Expense) [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Cash Flow Hedging [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash Flow Hedging [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Nonoperating Income (Expense) [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash Flow Hedging [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash Flow Hedging [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Nonoperating Income (Expense) [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	0	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	1000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash Flow Hedging [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	1000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	goog:DerivativeInstrumentsGainLossRecognizedinIncomeIneffectivePortionandAmountExcludedfromEffectivenessTestingAmortizationApproachNet (label)	1000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Net Investment Hedging [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Nonoperating Income (Expense) [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Net Investment Hedging [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Net Investment Hedging [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Nonoperating Income (Expense) [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Net Investment Hedging [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	78000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Net Investment Hedging [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	78000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Nonoperating Income (Expense) [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	78000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Net Investment Hedging [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofNetInvestmentHedgeEffectivenessNet (label)	0	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	139000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	139000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Nonoperating Income (Expense) [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	139000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	-197000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	-197000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Nonoperating Income (Expense) [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	-197000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	iso4217:USD	-6
49	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	96000000	iso4217:USD	-6
50	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	96000000	iso4217:USD	-6
51	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Nonoperating Income (Expense) [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	96000000	iso4217:USD	-6
52	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	iso4217:USD	-6
53	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	iso4217:USD	-6
54	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	-139000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	-139000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Nonoperating Income (Expense) [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	-139000000	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	197000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	197000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Nonoperating Income (Expense) [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	197000000	iso4217:USD	-6
64	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	iso4217:USD	-6
65	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	iso4217:USD	-6
66	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	iso4217:USD	-6
67	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	-96000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	-96000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Nonoperating Income (Expense) [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	-96000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value Hedging [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Nonoperating Income (Expense) [Member]	Derivative, Gain (Loss) on Derivative, Net	-245000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	Derivative, Gain (Loss) on Derivative, Net	539000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Nonoperating Income (Expense) [Member]	Derivative, Gain (Loss) on Derivative, Net	-124000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	Derivative, Gain (Loss) on Derivative, Net	-169000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Nonoperating Income (Expense) [Member]	Derivative, Gain (Loss) on Derivative, Net	169000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	Derivative, Gain (Loss) on Derivative, Net	-138000000	iso4217:USD	-6
79	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	130000000	iso4217:USD	-6
80	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Not Designated as Hedging Instrument [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	130000000	iso4217:USD	-6
81	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Nonoperating Income (Expense) [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	130000000	iso4217:USD	-6
82	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0	iso4217:USD	-6
83	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Not Designated as Hedging Instrument [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0	iso4217:USD	-6
84	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0	iso4217:USD	-6
85	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	-230000000	iso4217:USD	-6
86	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Not Designated as Hedging Instrument [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	-230000000	iso4217:USD	-6
87	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Nonoperating Income (Expense) [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	-230000000	iso4217:USD	-6
88	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0	iso4217:USD	-6
89	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Not Designated as Hedging Instrument [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0	iso4217:USD	-6
90	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0	iso4217:USD	-6
91	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	54000000	iso4217:USD	-6
92	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Not Designated as Hedging Instrument [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	54000000	iso4217:USD	-6
93	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Nonoperating Income (Expense) [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	54000000	iso4217:USD	-6
94	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0	iso4217:USD	-6
95	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Not Designated as Hedging Instrument [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0	iso4217:USD	-6
96	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0	iso4217:USD	-6
97	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	-381000000	iso4217:USD	-6
98	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Cash Flow Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	-381000000	iso4217:USD	-6
99	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Nonoperating Income (Expense) [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	-381000000	iso4217:USD	-6
100	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
101	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Cash Flow Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
102	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
103	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	83000000	iso4217:USD	-6
104	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash Flow Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	83000000	iso4217:USD	-6
105	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Nonoperating Income (Expense) [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	83000000	iso4217:USD	-6
106	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
107	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash Flow Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
108	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
109	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
110	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash Flow Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
111	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Nonoperating Income (Expense) [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
112	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
113	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash Flow Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
114	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	iso4217:USD	-6
115	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	6000000	iso4217:USD	-6
116	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Fair Value Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	6000000	iso4217:USD	-6
117	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Nonoperating Income (Expense) [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	6000000	iso4217:USD	-6
118	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	iso4217:USD	-6
119	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Fair Value Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	iso4217:USD	-6
120	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	iso4217:USD	-6
121	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	23000000	iso4217:USD	-6
122	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	23000000	iso4217:USD	-6
123	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Nonoperating Income (Expense) [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	23000000	iso4217:USD	-6
124	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	iso4217:USD	-6
125	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Fair Value Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	iso4217:USD	-6
126	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	iso4217:USD	-6
127	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	37000000	iso4217:USD	-6
128	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	37000000	iso4217:USD	-6
129	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Nonoperating Income (Expense) [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	37000000	iso4217:USD	-6
130	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	iso4217:USD	-6
131	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Fair Value Hedging [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	iso4217:USD	-6
132	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	iso4217:USD	-6
133	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Derivative Contract [Domain]	Nonoperating Income (Expense)	434000000	iso4217:USD	-6
134	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Hedging Relationship [Domain]	Nonoperating Income (Expense)	434000000	iso4217:USD	-6
135	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Hedging Designation [Domain]	Nonoperating Income (Expense)	434000000	iso4217:USD	-6
136	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Income Statement Location [Domain]	Nonoperating Income (Expense)	434000000	iso4217:USD	-6
137	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Nonoperating Income (Expense)	1047000000	iso4217:USD	-6
138	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Relationship [Domain]	Nonoperating Income (Expense)	1047000000	iso4217:USD	-6
139	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Designation [Domain]	Nonoperating Income (Expense)	1047000000	iso4217:USD	-6
140	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Statement Location [Domain]	Nonoperating Income (Expense)	1047000000	iso4217:USD	-6
141	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Nonoperating Income (Expense)	8592000000	iso4217:USD	-6
142	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Relationship [Domain]	Nonoperating Income (Expense)	8592000000	iso4217:USD	-6
143	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Designation [Domain]	Nonoperating Income (Expense)	8592000000	iso4217:USD	-6
144	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Income Statement Location [Domain]	Nonoperating Income (Expense)	8592000000	iso4217:USD	-6
145	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	773000000	iso4217:USD	-6
146	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	-955000000	iso4217:USD	-6
147	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	494000000	iso4217:USD	-6
148	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	773000000	iso4217:USD	-6
149	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	773000000	iso4217:USD	-6
150	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	-955000000	iso4217:USD	-6
151	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	-955000000	iso4217:USD	-6
152	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	332000000	iso4217:USD	-6
153	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	332000000	iso4217:USD	-6
154	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	iso4217:USD	-6
155	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	iso4217:USD	-6
156	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Nonoperating Income (Expense) [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	iso4217:USD	-6
157	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	539000000	iso4217:USD	-6
158	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	539000000	iso4217:USD	-6
159	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	539000000	iso4217:USD	-6
160	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	iso4217:USD	-6
161	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	iso4217:USD	-6
162	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Nonoperating Income (Expense) [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	iso4217:USD	-6
163	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	-169000000	iso4217:USD	-6
164	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	-169000000	iso4217:USD	-6
165	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	-169000000	iso4217:USD	-6
166	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	iso4217:USD	-6
167	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	iso4217:USD	-6
168	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Nonoperating Income (Expense) [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	iso4217:USD	-6
169	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	-139000000	iso4217:USD	-6
170	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	-139000000	iso4217:USD	-6
171	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales [Member]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	-139000000	iso4217:USD	-6
172	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax	0	iso4217:USD	-6
173	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax	0	iso4217:USD	-6
174	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax	0	iso4217:USD	-6
175	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax	0	iso4217:USD	-6
176	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax	26000000	iso4217:USD	-6
177	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash Flow Hedging [Member]	Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax	26000000	iso4217:USD	-6
178	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax	0	iso4217:USD	-6
179	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Net Investment Hedging [Member]	Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax	0	iso4217:USD	-6
180	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax	0	iso4217:USD	-6
181	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Net Investment Hedging [Member]	Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax	0	iso4217:USD	-6
182	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax	136000000	iso4217:USD	-6
183	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Net Investment Hedging [Member]	Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax	136000000	iso4217:USD	-6
184	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Derivative Contract [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
185	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Hedging Relationship [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
186	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Hedging Designation [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
187	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Income Statement Location [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
188	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	539000000	iso4217:USD	-6
189	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
190	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Relationship [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
191	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Hedging Designation [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
192	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Statement Location [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
193	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	-169000000	iso4217:USD	-6
194	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
195	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Relationship [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
196	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Hedging Designation [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
197	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Income Statement Location [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
198	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	-139000000	iso4217:USD	-6

Fact Table
Network	2403412 - Disclosure - Financial Instruments (Offsetting of Financial Assets and Financial Liabilities) (Details) (http://www.google.com/role/FinancialInstrumentsOffsettingOfFinancialAssetsAndFinancialLiabilitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Asset, Fair Value, Gross Liability	22000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Asset, Fair Value, Gross Liability	56000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	10000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	102000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Asset, Not Offset, Policy Election Deduction	64000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Asset, Not Offset, Policy Election Deduction	90000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Asset	80000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Asset	513000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative, Collateral, Obligation to Return Cash	4000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative, Collateral, Obligation to Return Cash	307000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative, Collateral, Obligation to Return Securities	2000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative, Collateral, Obligation to Return Securities	14000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative, Collateral, Right to Reclaim Cash	0	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative, Collateral, Right to Reclaim Cash	0	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative, Collateral, Right to Reclaim Securities	0	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative, Collateral, Right to Reclaim Securities	0	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Asset, Fair Value, Gross Asset	102000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Asset, Fair Value, Gross Asset	569000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Liability, Fair Value, Gross Liability	374000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Liability, Fair Value, Gross Liability	289000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Liability	352000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Liability	233000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Liability, Fair Value, Gross Asset	22000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Liability, Fair Value, Gross Asset	56000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	288000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	143000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Derivative Liability, Not Offset, Policy Election Deduction	64000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Derivative Liability, Not Offset, Policy Election Deduction	90000000	iso4217:USD	-6

Fact Table
Network	2404401 - Disclosure - Variable Interest Entities (VIEs) (Narrative) (Details) (http://www.google.com/role/VariableInterestEntitiesViesNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:AbbVieIncMember (label)	goog:AccumulatedPaymentsForOtherCommitments (label)	750000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Research and Development Arrangement [Member]	goog:AccumulatedPaymentsForOtherCommitments (label)	750000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:CalicoMember (label)	goog:AccumulatedPaymentsForOtherCommitments (label)	480000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:CalicoMember (label)	goog:AccumulatedPaymentsForOtherCommitments (label)	500000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Research and Development Arrangement [Member]	goog:AccumulatedPaymentsForOtherCommitments (label)	500000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:AbbVieIncMember (label)	Other Commitment	500000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Research and Development Arrangement [Member]	Other Commitment	500000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:CalicoMember (label)	Other Commitment	750000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Research and Development Arrangement [Member]	Other Commitment	750000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:CommitmenttoInvestMember (label)	Other Commitment	750000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2018-12-01 to 2018-12-31	goog:VerilyMember (label)	Proceeds from Issuance of Common Stock	900000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-12-01 to 2018-12-31	Variable Interest Entity, Primary Beneficiary [Member]	Proceeds from Issuance of Common Stock	900000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2019-01-01 to 2019-03-31	goog:VerilyMember (label)	Proceeds from Issuance of Common Stock	100000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2019-01-01 to 2019-03-31	Scenario, Forecast [Member]	Proceeds from Issuance of Common Stock	100000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2019-01-01 to 2019-03-31	Variable Interest Entity, Primary Beneficiary [Member]	Proceeds from Issuance of Common Stock	100000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-01 to 2018-12-31	goog:VerilyMember (label)	Sale of Stock, Consideration Received on Transaction	1000000000	iso4217:USD	-8
17	0001652044 (http://www.sec.gov/CIK)	2018-12-01 to 2018-12-31	Variable Interest Entity, Primary Beneficiary [Member]	Sale of Stock, Consideration Received on Transaction	1000000000	iso4217:USD	-8
18	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:VerilyMember (label)	Sale of Stock, Consideration Received Per Transaction	800000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Variable Interest Entity, Primary Beneficiary [Member]	Sale of Stock, Consideration Received Per Transaction	800000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Entity [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	1700000000	iso4217:USD	-8
21	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Ownership [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	1700000000	iso4217:USD	-8
22	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Other Commitments [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	1700000000	iso4217:USD	-8
23	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Regulatory Asset [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	1700000000	iso4217:USD	-8
24	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Scenario, Unspecified [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	1700000000	iso4217:USD	-8
25	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Variable Interest Entity, Classification [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	1700000000	iso4217:USD	-8
26	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Entity [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	2400000000	iso4217:USD	-8
27	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Ownership [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	2400000000	iso4217:USD	-8
28	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Other Commitments [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	2400000000	iso4217:USD	-8
29	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Regulatory Asset [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	2400000000	iso4217:USD	-8
30	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Scenario, Unspecified [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	2400000000	iso4217:USD	-8
31	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Variable Interest Entity, Classification [Domain]	Variable Interest Entity, Consolidated, Assets, Pledged	2400000000	iso4217:USD	-8
32	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Entity [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	997000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Ownership [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	997000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Other Commitments [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	997000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Regulatory Asset [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	997000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Scenario, Unspecified [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	997000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Variable Interest Entity, Classification [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	997000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Entity [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	909000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Ownership [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	909000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Other Commitments [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	909000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Regulatory Asset [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	909000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Scenario, Unspecified [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	909000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Variable Interest Entity, Classification [Domain]	Variable Interest Entity, Consolidated, Liabilities, No Recourse	909000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Renewable Energy Program [Member]	Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net	896000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member]	Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net	896000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Renewable Energy Program [Member]	Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net	705000000	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member]	Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net	705000000	iso4217:USD	-6

Fact Table
Network	2406402 - Disclosure - Debt (Narrative) (Details) (http://www.google.com/role/DebtNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-04-30	Subsidiaries [Member]	goog:DebtInstrumentAmountSubjectToExchange (label)	1700000000	iso4217:USD	-8
2	0001652044 (http://www.sec.gov/CIK)	2016-04-30	goog:UnsecuredSeniorNotes3.375dueonFebruary2024andUnsecuredSeniorNotes3.625DueMay2021Member (label)	goog:DebtInstrumentAmountSubjectToExchange (label)	1700000000	iso4217:USD	-8
3	0001652044 (http://www.sec.gov/CIK)	2011-05-31	Subsidiaries [Member]	goog:NumberOfTranches (label)	3	goog:Tranche	INF
4	0001652044 (http://www.sec.gov/CIK)	2011-05-31	goog:A2011NotesMember (label)	goog:NumberOfTranches (label)	3	goog:Tranche	INF
5	0001652044 (http://www.sec.gov/CIK)	2011-05-31	Unsecured Debt [Member]	goog:NumberOfTranches (label)	3	goog:Tranche	INF
6	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Consolidated Entities [Domain]	Commercial Paper	0	iso4217:USD	INF
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain]	Commercial Paper	0	iso4217:USD	INF
8	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Debt Instrument, Name [Domain]	Commercial Paper	0	iso4217:USD	INF
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Long-term Debt, Type [Domain]	Commercial Paper	0	iso4217:USD	INF
10	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Consolidated Entities [Domain]	Commercial Paper	0	iso4217:USD	INF
11	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain]	Commercial Paper	0	iso4217:USD	INF
12	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Debt Instrument, Name [Domain]	Commercial Paper	0	iso4217:USD	INF
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Long-term Debt, Type [Domain]	Commercial Paper	0	iso4217:USD	INF
14	0001652044 (http://www.sec.gov/CIK)	2011-05-31	Subsidiaries [Member]	Debt Instrument, Face Amount	3000000000.0	iso4217:USD	INF
15	0001652044 (http://www.sec.gov/CIK)	2011-05-31	goog:A2011NotesMember (label)	Debt Instrument, Face Amount	3000000000.0	iso4217:USD	INF
16	0001652044 (http://www.sec.gov/CIK)	2011-05-31	Unsecured Debt [Member]	Debt Instrument, Face Amount	3000000000.0	iso4217:USD	INF
17	0001652044 (http://www.sec.gov/CIK)	2014-02-28	Subsidiaries [Member]	Debt Instrument, Face Amount	1000000000.0	iso4217:USD	INF
18	0001652044 (http://www.sec.gov/CIK)	2014-02-28	goog:A2014NotesMember (label)	Debt Instrument, Face Amount	1000000000.0	iso4217:USD	INF
19	0001652044 (http://www.sec.gov/CIK)	2014-02-28	Unsecured Debt [Member]	Debt Instrument, Face Amount	1000000000.0	iso4217:USD	INF
20	0001652044 (http://www.sec.gov/CIK)	2016-04-30	goog:UnsecuredSeniorNotes3.375dueonFebruary2024andUnsecuredSeniorNotes3.625DueMay2021Member (label)	Debt Instrument, Face Amount	1700000000	iso4217:USD	-8
21	0001652044 (http://www.sec.gov/CIK)	2016-04-30	Unsecured Debt [Member]	Debt Instrument, Face Amount	1700000000	iso4217:USD	-8
22	0001652044 (http://www.sec.gov/CIK)	2016-08-31	goog:A2016NotesMember (label)	Debt Instrument, Face Amount	2000000000.0	iso4217:USD	INF
23	0001652044 (http://www.sec.gov/CIK)	2016-08-31	Unsecured Debt [Member]	Debt Instrument, Face Amount	2000000000.0	iso4217:USD	INF
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember (label)	Debt Instrument, Interest Rate, Effective Percentage	0.02231	xbrli:pure	5
25	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember (label)	Debt Instrument, Interest Rate, Effective Percentage	0.03734	xbrli:pure	5
26	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember (label)	Debt Instrument, Interest Rate, Effective Percentage	0.03377	xbrli:pure	5
27	0001652044 (http://www.sec.gov/CIK)	2016-04-01 to 2016-04-30	goog:UnsecuredSeniorNotes3.375dueonFebruary2024andUnsecuredSeniorNotes3.625DueMay2021Member (label)	Gains (Losses) on Restructuring of Debt	0	iso4217:USD	INF
28	0001652044 (http://www.sec.gov/CIK)	2016-04-01 to 2016-04-30	Unsecured Debt [Member]	Gains (Losses) on Restructuring of Debt	0	iso4217:USD	INF
29	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Commercial Paper [Member]	Line of Credit Facility, Maximum Borrowing Capacity	5000000000	iso4217:USD	INF
30	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Revolving Credit Facility [Member]	Line of Credit Facility, Maximum Borrowing Capacity	4000000000	iso4217:USD	INF
31	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Revolving Credit Facility [Member]	Line of Credit, Current	0	iso4217:USD	INF
32	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Revolving Credit Facility [Member]	Line of Credit, Current	0	iso4217:USD	INF
33	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Consolidated Entities [Domain]	Long-term Debt, Fair Value	4000000000	iso4217:USD	-8
34	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain]	Long-term Debt, Fair Value	4000000000	iso4217:USD	-8
35	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Debt Instrument, Name [Domain]	Long-term Debt, Fair Value	4000000000	iso4217:USD	-8
36	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Long-term Debt, Type [Domain]	Long-term Debt, Fair Value	4000000000	iso4217:USD	-8
37	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Consolidated Entities [Domain]	Long-term Debt, Fair Value	3900000000	iso4217:USD	-8
38	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain]	Long-term Debt, Fair Value	3900000000	iso4217:USD	-8
39	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Debt Instrument, Name [Domain]	Long-term Debt, Fair Value	3900000000	iso4217:USD	-8
40	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Long-term Debt, Type [Domain]	Long-term Debt, Fair Value	3900000000	iso4217:USD	-8

Fact Table
Network	2406403 - Disclosure - Debt (Long-Term Debt) (Details) (http://www.google.com/role/DebtLongTermDebtDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Debt Instrument, Name [Domain]	Capital Lease Obligations, Noncurrent	26000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Debt Instrument, Name [Domain]	Capital Lease Obligations, Noncurrent	62000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember (label)	Long-term Debt, Gross	2000000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember (label)	Long-term Debt, Gross	1000000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember (label)	Long-term Debt, Gross	1000000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember (label)	Long-term Debt, Gross	2000000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember (label)	Long-term Debt, Gross	1000000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember (label)	Long-term Debt, Gross	1000000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:UnsecuredSeniorNotesOnePointNineNineEightPercentDueAugustFifteenTwentyTwentySixMember (label)	Debt Instrument, Interest Rate, Stated Percentage	0.01998	xbrli:pure	INF
10	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:UnsecuredSeniorNotesThreePointSixTwoFivePercentDueMayNineteenTwentyTwentyOneMember (label)	Debt Instrument, Interest Rate, Stated Percentage	0.03625	xbrli:pure	INF
11	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:UnsecuredSeniorNotesThreePointThreeSevenFivedueonFebruaryTwentyFiveTwentyTwentyFourMember (label)	Debt Instrument, Interest Rate, Stated Percentage	0.03375	xbrli:pure	INF
12	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Debt Instrument, Name [Domain]	Debt Instrument, Unamortized Discount	57000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Debt Instrument, Name [Domain]	Debt Instrument, Unamortized Discount	50000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Debt Instrument, Name [Domain]	Long-term Debt and Capital Lease Obligations	3969000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Debt Instrument, Name [Domain]	Long-term Debt and Capital Lease Obligations	4012000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Debt Instrument, Name [Domain]	Long-term Debt, Excluding Current Maturities	3943000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Debt Instrument, Name [Domain]	Long-term Debt, Excluding Current Maturities	3950000000	iso4217:USD	-6

Fact Table
Network	2406404 - Disclosure - Debt (Future Principal Payments for Borrowings) (Details) (http://www.google.com/role/DebtFuturePrincipalPaymentsForBorrowingsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt	4062000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal after Year Five	3039000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	0	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Year Five	3000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Year Four	3000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Year Three	1003000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Year Two	14000000	iso4217:USD	-6

Fact Table
Network	2407402 - Disclosure - Supplemental Financial Statement Information (Property and Equipment) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationPropertyAndEquipmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Property, Plant and Equipment, Type [Domain]	Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	17264000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Property, Plant and Equipment, Type [Domain]	Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	22788000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Property, Plant and Equipment, Type [Domain]	Capital Leased Assets, Gross	390000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Property, Plant and Equipment, Type [Domain]	Capital Leased Assets, Gross	648000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Property, Plant and Equipment, Type [Domain]	Property, Plant and Equipment, Gross	59647000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Construction in Progress [Member]	Property, Plant and Equipment, Gross	10491000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Furniture and Fixtures [Member]	Property, Plant and Equipment, Gross	48000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Land and Building [Member]	Property, Plant and Equipment, Gross	23183000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Leasehold Improvements [Member]	Property, Plant and Equipment, Gross	4496000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Technology Equipment [Member]	Property, Plant and Equipment, Gross	21429000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Property, Plant and Equipment, Type [Domain]	Property, Plant and Equipment, Gross	82507000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Construction in Progress [Member]	Property, Plant and Equipment, Gross	16838000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Furniture and Fixtures [Member]	Property, Plant and Equipment, Gross	61000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Land and Building [Member]	Property, Plant and Equipment, Gross	30179000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Leasehold Improvements [Member]	Property, Plant and Equipment, Gross	5310000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Technology Equipment [Member]	Property, Plant and Equipment, Gross	30119000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Property, Plant and Equipment, Type [Domain]	Property, Plant and Equipment, Net	42383000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Property, Plant and Equipment, Type [Domain]	Property, Plant and Equipment, Net	59719000000	iso4217:USD	-6

Fact Table
Network	2407403 - Disclosure - Supplemental Financial Statement Information (Accrued Expenses and Other Current Liabilities) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationAccruedExpensesAndOtherCurrentLiabilitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	goog:AccruedCustomerLiabilitiesCurrent (label)	1489000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:AccruedCustomerLiabilitiesCurrent (label)	1810000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Accrued Liabilities, Current	10177000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Accrued Liabilities, Current	16958000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Loss Contingency, Accrual, Current	2874000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Loss Contingency, Accrual, Current	7754000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Other Accrued Liabilities, Current	5814000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Other Accrued Liabilities, Current	7394000000	iso4217:USD	-6

Fact Table
Network	2407404 - Disclosure - Supplemental Financial Statement Information (Components of Accumulated Other Comprehensive Income) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationComponentsOfAccumulatedOtherComprehensiveIncomeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	goog:GainLossfromComponentsExcludedfromAssessmentofCashFlowHedgeEffectivenessRecordedinAOCINet (label)	26000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	goog:GainLossfromComponentsExcludedfromAssessmentofCashFlowHedgeEffectivenessRecordedinAOCINet (label)	26000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofCashFlowHedgeEffectivenessRecordedinAOCINet (label)	26000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofCashFlowHedgeEffectivenessRecordedinAOCINet (label)	0	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	goog:GainLossfromComponentsExcludedfromAssessmentofCashFlowHedgeEffectivenessRecordedinAOCINet (label)	0	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Type of Adoption [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	47000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2015-12-31	AOCI Attributable to Parent [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	0	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-133000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Type of Adoption [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-15000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	-697000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-12-31	AOCI Attributable to Parent [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-98000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-599000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01	Accounting Standards Update 2016-01 [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	98000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	98000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Type of Adoption [Domain]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	-398000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	-398000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	515000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	-314000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	-599000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Type of Adoption [Domain]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	1212000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	1212000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	-638000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	307000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	1543000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	-527000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	-527000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	264000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	-10000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	OCI, before Reclassifications, Net of Tax, Attributable to Parent	-781000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Type of Adoption [Domain]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	-528000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	-528000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	164000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	-93000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	-599000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Type of Adoption [Domain]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	1410000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	1410000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	-545000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	412000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	1543000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	-1314000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	-1314000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	388000000	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	-921000000	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	-781000000	iso4217:USD	-6
49	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Type of Adoption [Domain]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	130000000	iso4217:USD	-6
50	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	130000000	iso4217:USD	-6
51	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	351000000	iso4217:USD	-6
52	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	-221000000	iso4217:USD	-6
53	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0	iso4217:USD	-6
54	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Type of Adoption [Domain]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	-198000000	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	-198000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	-93000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	-105000000	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Type of Adoption [Domain]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	813000000	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	813000000	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	-98000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	911000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0	iso4217:USD	-6
64	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Type of Adoption [Domain]	Stockholders' Equity Attributable to Parent	120331000000	iso4217:USD	-6
65	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	120331000000	iso4217:USD	-6
66	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Stockholders' Equity Attributable to Parent	259000000	iso4217:USD	-6
67	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-86000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2015-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-1874000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-2047000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	89223000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Type of Adoption [Domain]	Stockholders' Equity Attributable to Parent	139036000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	139036000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Stockholders' Equity Attributable to Parent	423000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-179000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2016-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-2402000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-2646000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	105131000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	Stockholders' Equity Attributable to Parent	152502000000	iso4217:USD	-6
79	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	152502000000	iso4217:USD	-6
80	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Stockholders' Equity Attributable to Parent	-122000000	iso4217:USD	-6
81	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	233000000	iso4217:USD	-6
82	0001652044 (http://www.sec.gov/CIK)	2017-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-992000000	iso4217:USD	-6
83	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-1103000000	iso4217:USD	-6
84	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	113247000000	iso4217:USD	-6
85	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Type of Adoption [Domain]	Stockholders' Equity Attributable to Parent	177628000000	iso4217:USD	-6
86	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	177628000000	iso4217:USD	-6
87	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Stockholders' Equity Attributable to Parent	266000000	iso4217:USD	-6
88	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-688000000	iso4217:USD	-6
89	0001652044 (http://www.sec.gov/CIK)	2018-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-2306000000	iso4217:USD	-6
90	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-1884000000	iso4217:USD	-6
91	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	134885000000	iso4217:USD	-6

Fact Table
Network	2407405 - Disclosure - Supplemental Financial Statement Information (Reclassifications Out of Accumulated Other Comprehensive Income (Loss)) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationReclassificationsOutOfAccumulatedOtherComprehensiveIncomeLossDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Derivative Contract [Domain]	Income Tax Expense (Benefit)	4672000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Income Tax Expense (Benefit)	4672000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Income Tax Expense (Benefit)	4672000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Interest Rate Contract [Member]	Income Tax Expense (Benefit)	193000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Income Tax Expense (Benefit)	193000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Income Tax Expense (Benefit)	193000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Income Tax Expense (Benefit)	0	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Income Tax Expense (Benefit)	0	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Income Tax Expense (Benefit)	14531000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Income Tax Expense (Benefit)	14531000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Income Tax Expense (Benefit)	14531000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Interest Rate Contract [Member]	Income Tax Expense (Benefit)	-71000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Income Tax Expense (Benefit)	-71000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Income Tax Expense (Benefit)	-71000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Income Tax Expense (Benefit)	0	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Income Tax Expense (Benefit)	0	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Income Tax Expense (Benefit)	4177000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Income Tax Expense (Benefit)	4177000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Income Tax Expense (Benefit)	4177000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Interest Rate Contract [Member]	Income Tax Expense (Benefit)	-35000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Income Tax Expense (Benefit)	-35000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Income Tax Expense (Benefit)	-35000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Income Tax Expense (Benefit)	279000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Income Tax Expense (Benefit)	279000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Derivative Contract [Domain]	Net Income (Loss) Attributable to Parent	19478000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Net Income (Loss) Attributable to Parent	19478000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	19478000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Net Income (Loss) Attributable to Parent	130000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Net Income (Loss) Attributable to Parent	351000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Net Income (Loss) Attributable to Parent	351000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Net Income (Loss) Attributable to Parent	-221000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Net Income (Loss) Attributable to Parent	-221000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Net Income (Loss) Attributable to Parent	12662000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Net Income (Loss) Attributable to Parent	12662000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	12662000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Net Income (Loss) Attributable to Parent	-198000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Net Income (Loss) Attributable to Parent	-93000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Net Income (Loss) Attributable to Parent	-93000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Net Income (Loss) Attributable to Parent	-105000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Net Income (Loss) Attributable to Parent	-105000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Net Income (Loss) Attributable to Parent	30736000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Net Income (Loss) Attributable to Parent	30736000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	30736000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Net Income (Loss) Attributable to Parent	813000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Net Income (Loss) Attributable to Parent	-98000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Net Income (Loss) Attributable to Parent	-98000000	iso4217:USD	-6
47	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Net Income (Loss) Attributable to Parent	911000000	iso4217:USD	-6
48	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Net Income (Loss) Attributable to Parent	911000000	iso4217:USD	-6
49	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Derivative Contract [Domain]	Nonoperating Income (Expense)	434000000	iso4217:USD	-6
50	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Nonoperating Income (Expense)	434000000	iso4217:USD	-6
51	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Nonoperating Income (Expense)	434000000	iso4217:USD	-6
52	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Interest Rate Contract [Member]	Nonoperating Income (Expense)	5000000	iso4217:USD	-6
53	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Nonoperating Income (Expense)	5000000	iso4217:USD	-6
54	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Nonoperating Income (Expense)	5000000	iso4217:USD	-6
55	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Nonoperating Income (Expense)	-221000000	iso4217:USD	-6
56	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Nonoperating Income (Expense)	-221000000	iso4217:USD	-6
57	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Nonoperating Income (Expense)	1047000000	iso4217:USD	-6
58	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Nonoperating Income (Expense)	1047000000	iso4217:USD	-6
59	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Nonoperating Income (Expense)	1047000000	iso4217:USD	-6
60	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Interest Rate Contract [Member]	Nonoperating Income (Expense)	5000000	iso4217:USD	-6
61	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Nonoperating Income (Expense)	5000000	iso4217:USD	-6
62	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Nonoperating Income (Expense)	5000000	iso4217:USD	-6
63	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Nonoperating Income (Expense)	-105000000	iso4217:USD	-6
64	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Nonoperating Income (Expense)	-105000000	iso4217:USD	-6
65	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Nonoperating Income (Expense)	8592000000	iso4217:USD	-6
66	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Nonoperating Income (Expense)	8592000000	iso4217:USD	-6
67	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Nonoperating Income (Expense)	8592000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Interest Rate Contract [Member]	Nonoperating Income (Expense)	6000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Nonoperating Income (Expense)	6000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Nonoperating Income (Expense)	6000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Nonoperating Income (Expense)	1190000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]	Nonoperating Income (Expense)	1190000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Derivative Contract [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Foreign Exchange Contract [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	539000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	539000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	539000000	iso4217:USD	-6
79	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
80	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
81	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
82	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Foreign Exchange Contract [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	-169000000	iso4217:USD	-6
83	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	-169000000	iso4217:USD	-6
84	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	-169000000	iso4217:USD	-6
85	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
86	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
87	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
88	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Foreign Exchange Contract [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	-139000000	iso4217:USD	-6
89	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Reclassification out of Accumulated Other Comprehensive Income [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	-139000000	iso4217:USD	-6
90	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	-139000000	iso4217:USD	-6

Fact Table
Network	2407406 - Disclosure - Supplemental Financial Statement Information (Components of Other Income (Expense), Net) (Details) (http://www.google.com/role/SupplementalFinancialStatementInformationComponentsOfOtherIncomeExpenseNetDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:DebtSecuritiesUnrealizedGainLossOnExtinguishmentOfSecurities (label)	1300000000	iso4217:USD	-8
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	goog:IncomeLossfromEquityMethodInvestmentsandOtherthanTemporaryImpairmentNet (label)	-202000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	goog:IncomeLossfromEquityMethodInvestmentsandOtherthanTemporaryImpairmentNet (label)	-156000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:IncomeLossfromEquityMethodInvestmentsandOtherthanTemporaryImpairmentNet (label)	-120000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Debt Securities, Realized Gain (Loss)	-53000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Debt Securities, Realized Gain (Loss)	-110000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Debt Securities, Realized Gain (Loss)	1190000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Equity Securities, FV-NI, Gain (Loss)	-20000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Equity Securities, FV-NI, Gain (Loss)	73000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Equity Securities, FV-NI, Gain (Loss)	5460000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Foreign Currency Transaction Gain (Loss), before Tax	-475000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Foreign Currency Transaction Gain (Loss), before Tax	-121000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Foreign Currency Transaction Gain (Loss), before Tax	-80000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Foreign Currency Transaction Loss, before Tax	112000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Foreign Currency Transaction Loss, before Tax	226000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Foreign Currency Transaction Loss, before Tax	195000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Interest Costs Capitalized	0	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Interest Costs Capitalized	48000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Interest Costs Capitalized	92000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Interest Expense	124000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Interest Expense	109000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Interest Expense	114000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Interest Income, Other	1220000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Interest Income, Other	1312000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Interest Income, Other	1878000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Nonoperating Income (Expense)	434000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Nonoperating Income (Expense)	1047000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Nonoperating Income (Expense)	8592000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Nonoperating Income (Expense)	88000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Nonoperating Income (Expense)	158000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Nonoperating Income (Expense)	378000000	iso4217:USD	-6

Fact Table
Network	2408401 - Disclosure - Acquisitions (Narrative) (Details) (http://www.google.com/role/AcquisitionsNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1250946
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:PatentsAndDevelopedTechnologyMember (label)	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1251554
3	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1252144
4	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:TradenamesAndOtherMember (label)	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1252748
5	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1253338
6	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Customer Relationships [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1253928
7	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1254518
8	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:PatentsAndDevelopedTechnologyMember (label)	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1255126
9	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1255716
10	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:TradenamesAndOtherMember (label)	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1256320
11	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1256910
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Customer Relationships [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1257500
13	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Acquisition, Goodwill, Expected Tax Deductible Amount	60000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Acquisition, Goodwill, Expected Tax Deductible Amount	81000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Consideration Transferred	322000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Consideration Transferred	573000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	12000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	10000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-31	goog:HTCMember (label)	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	10000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	117000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	295000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-01-31	goog:HTCMember (label)	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	165000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	28000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	25000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2018-01-31	goog:HTCMember (label)	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	9000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Business Acquisition, Acquiree [Domain]	Goodwill	16468000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Finite-Lived Intangible Assets, Major Class Name [Domain]	Goodwill	16468000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Business Acquisition, Acquiree [Domain]	Goodwill	16747000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Finite-Lived Intangible Assets, Major Class Name [Domain]	Goodwill	16747000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Goodwill	221000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Business Acquisition, Acquiree [Domain]	Goodwill	17888000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Finite-Lived Intangible Assets, Major Class Name [Domain]	Goodwill	17888000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Goodwill	293000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2018-01-31	goog:HTCMember (label)	Goodwill	934000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-01-31	goog:HTCMember (label)	Payments to Acquire Businesses, Gross	1100000000	iso4217:USD	-8

Fact Table
Network	2409402 - Disclosure - Goodwill and Other Intangible Assets (Changes in Carrying Amount of Goodwill) (Details) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsChangesInCarryingAmountOfGoodwillDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Segments [Domain]	Goodwill	16468000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-12-31	goog:GoogleInc.Member (label)	Goodwill	16027000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Other Segments [Member]	Goodwill	441000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Segments [Domain]	Goodwill	16747000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:GoogleInc.Member (label)	Goodwill	16295000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Other Segments [Member]	Goodwill	452000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Segments [Domain]	Goodwill	17888000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:GoogleInc.Member (label)	Goodwill	17521000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Other Segments [Member]	Goodwill	367000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Goodwill, Acquired During Period	221000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Goodwill, Acquired During Period	212000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Other Segments [Member]	Goodwill, Acquired During Period	9000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Goodwill, Acquired During Period	1227000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Goodwill, Acquired During Period	1227000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Other Segments [Member]	Goodwill, Acquired During Period	0	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Goodwill, Transfers	0	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Goodwill, Transfers	80000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Other Segments [Member]	Goodwill, Transfers	-80000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Goodwill, Translation and Purchase Accounting Adjustments	58000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Goodwill, Translation and Purchase Accounting Adjustments	56000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Other Segments [Member]	Goodwill, Translation and Purchase Accounting Adjustments	2000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Goodwill, Translation and Purchase Accounting Adjustments	-86000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Goodwill, Translation and Purchase Accounting Adjustments	-81000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Other Segments [Member]	Goodwill, Translation and Purchase Accounting Adjustments	-5000000	iso4217:USD	-6

Fact Table
Network	2409403 - Disclosure - Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsAcquisitionRelatedIntangibleAssetsThatAreBeingAmortizedDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Assets, Accumulated Amortization	3471000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:PatentsAndDevelopedTechnologyMember (label)	Finite-Lived Intangible Assets, Accumulated Amortization	3040000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:TradenamesAndOtherMember (label)	Finite-Lived Intangible Assets, Accumulated Amortization	168000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Customer Relationships [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	263000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Assets, Accumulated Amortization	3957000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:PatentsAndDevelopedTechnologyMember (label)	Finite-Lived Intangible Assets, Accumulated Amortization	3394000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:TradenamesAndOtherMember (label)	Finite-Lived Intangible Assets, Accumulated Amortization	255000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Customer Relationships [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	308000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Assets, Gross	6163000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:PatentsAndDevelopedTechnologyMember (label)	Finite-Lived Intangible Assets, Gross	5260000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:TradenamesAndOtherMember (label)	Finite-Lived Intangible Assets, Gross	544000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Customer Relationships [Member]	Finite-Lived Intangible Assets, Gross	359000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Assets, Gross	6177000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:PatentsAndDevelopedTechnologyMember (label)	Finite-Lived Intangible Assets, Gross	5125000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:TradenamesAndOtherMember (label)	Finite-Lived Intangible Assets, Gross	703000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Customer Relationships [Member]	Finite-Lived Intangible Assets, Gross	349000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Finite-Lived Intangible Assets, Major Class Name [Domain]	Intangible Assets, Net (Excluding Goodwill)	2692000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:PatentsAndDevelopedTechnologyMember (label)	Intangible Assets, Net (Excluding Goodwill)	2220000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-12-31	goog:TradenamesAndOtherMember (label)	Intangible Assets, Net (Excluding Goodwill)	376000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Customer Relationships [Member]	Intangible Assets, Net (Excluding Goodwill)	96000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Finite-Lived Intangible Assets, Major Class Name [Domain]	Intangible Assets, Net (Excluding Goodwill)	2220000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:PatentsAndDevelopedTechnologyMember (label)	Intangible Assets, Net (Excluding Goodwill)	1731000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:TradenamesAndOtherMember (label)	Intangible Assets, Net (Excluding Goodwill)	448000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Customer Relationships [Member]	Intangible Assets, Net (Excluding Goodwill)	41000000	iso4217:USD	-6

Fact Table
Network	2409404 - Disclosure - Goodwill and Other Intangible Assets (Narrative) (Details) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:AcquisitionrelatedIntangibleAssetsMember (label)	Amortization of Intangible Assets	833000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:AcquisitionrelatedIntangibleAssetsMember (label)	Amortization of Intangible Assets	796000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:AcquisitionrelatedIntangibleAssetsMember (label)	Amortization of Intangible Assets	865000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:PatentsAndDevelopedTechnologyMember (label)	Finite-Lived Intangible Asset, Useful Life	_1218496
5	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:TradenamesAndOtherMember (label)	Finite-Lived Intangible Asset, Useful Life	_1219100
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Customer Relationships [Member]	Finite-Lived Intangible Asset, Useful Life	_1219690

Fact Table
Network	2409405 - Disclosure - Goodwill and Other Intangible Assets (Expected Amortization Expense for Acquisition-Related Intangible Assets) (Details) (http://www.google.com/role/GoodwillAndOtherIntangibleAssetsExpectedAmortizationExpenseForAcquisitionRelatedIntangibleAssetsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, after Year Five	182000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	712000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Year Five	7000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Year Four	201000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Year Three	533000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Year Two	585000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Net	2220000000	iso4217:USD	-6

Fact Table
Network	2411402 - Disclosure - Commitments and Contingencies (Future Minimum Payments Under Non-Cancelable Operating Leases, Along with Sublease Income Amounts) (Details) (http://www.google.com/role/CommitmentsAndContingenciesFutureMinimumPaymentsUnderNonCancelableOperatingLeasesAlongWithSubleaseIncomeAmountsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:OperatingLeasesFutureMinimumPaymentsDueNetNextTwelveMonths (label)	1303000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:OperatingLeasesFutureMinimumPaymentsDueNetThereafter (label)	3911000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:OperatingLeasesFutureMinimumPaymentsDueNetTotal (label)	10047000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:OperatingLeasesFutureMinimumPaymentsDueNetinFiveYears (label)	977000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:OperatingLeasesFutureMinimumPaymentsDueNetinFourYears (label)	1145000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:OperatingLeasesFutureMinimumPaymentsDueNetinThreeYears (label)	1327000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:OperatingLeasesFutureMinimumPaymentsDueNetinTwoYears (label)	1384000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Due	10102000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Due, Next Twelve Months	1319000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due in Five Years	980000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due in Four Years	1153000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due in Three Years	1337000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due in Two Years	1397000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due Thereafter	3916000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Receivable	55000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Receivable, Current	16000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Receivable, in Five Years	3000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Receivable, in Four Years	8000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Receivable, in Three Years	10000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Receivable, in Two Years	13000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Receivable, Thereafter	5000000	iso4217:USD	-6

Fact Table
Network	2411403 - Disclosure - Commitments and Contingencies (Narrative) (Details) (http://www.google.com/role/CommitmentsAndContingenciesNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Balance Sheet Location [Domain]	goog:NonCancelableFutureMinimumLeasePayments (label)	3500000000	iso4217:USD	-8
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Loss Contingency, Nature [Domain]	goog:NonCancelableFutureMinimumLeasePayments (label)	3500000000	iso4217:USD	-8
3	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Property, Plant and Equipment [Member]	goog:NonCancelableFutureMinimumLeasePayments (label)	1500000000	iso4217:USD	-8
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Balance Sheet Location [Domain]	Operating Leases, Rent Expense	897000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Loss Contingency, Nature [Domain]	Operating Leases, Rent Expense	897000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Balance Sheet Location [Domain]	Operating Leases, Rent Expense	1100000000	iso4217:USD	-8
7	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Loss Contingency, Nature [Domain]	Operating Leases, Rent Expense	1100000000	iso4217:USD	-8
8	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Balance Sheet Location [Domain]	Operating Leases, Rent Expense	1300000000	iso4217:USD	-8
9	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Loss Contingency, Nature [Domain]	Operating Leases, Rent Expense	1300000000	iso4217:USD	-8
10	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Balance Sheet Location [Domain]	Loss Contingency, Loss in Period	0	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Loss Contingency, Nature [Domain]	Loss Contingency, Loss in Period	0	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Unfavorable Regulatory Action [Member]	Loss Contingency, Loss in Period	2400000000	iso4217:EUR	-8
13	0001652044 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Unfavorable Regulatory Action [Member]	Loss Contingency, Loss in Period	2700000000	iso4217:USD	-8
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Balance Sheet Location [Domain]	Loss Contingency, Loss in Period	2736000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Loss Contingency, Nature [Domain]	Loss Contingency, Loss in Period	2736000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	Unfavorable Regulatory Action [Member]	Loss Contingency, Loss in Period	21000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Unfavorable Regulatory Action [Member]	Loss Contingency, Loss in Period	4300000000	iso4217:EUR	-8
18	0001652044 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Unfavorable Regulatory Action [Member]	Loss Contingency, Loss in Period	5100000000	iso4217:USD	-8
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Balance Sheet Location [Domain]	Loss Contingency, Loss in Period	5071000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Loss Contingency, Nature [Domain]	Loss Contingency, Loss in Period	5071000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Balance Sheet Location [Domain]	Purchase Obligation	7400000000	iso4217:USD	-8
22	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Loss Contingency, Nature [Domain]	Purchase Obligation	7400000000	iso4217:USD	-8

Fact Table
Network	2412401 - Disclosure - Stockholders' Equity (Narrative) (Details) (http://www.google.com/role/StockholdersEquityNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-12-31	goog:CapitalClassCMember (label)	goog:CommonStockNumberofVotes (label)	0	goog:vote	INF
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class A [Member]	goog:CommonStockNumberofVotes (label)	1	goog:vote	INF
3	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Common Class B [Member]	goog:CommonStockNumberofVotes (label)	10	goog:vote	INF
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Share Repurchase Program [Domain]	goog:NumberOfClassesOfCommonStock (label)	3	goog:class	INF
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	goog:NumberOfClassesOfCommonStock (label)	3	goog:class	INF
6	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Share Repurchase Program [Domain]	Preferred Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Preferred Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Share Repurchase Program [Domain]	Preferred Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
9	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Preferred Stock, Par or Stated Value Per Share	0.001	iso4217:USD/xbrli:shares	INF
10	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Share Repurchase Program [Domain]	Preferred Stock, Shares Authorized	100000000	xbrli:shares	INF
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Preferred Stock, Shares Authorized	100000000	xbrli:shares	INF
12	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Share Repurchase Program [Domain]	Preferred Stock, Shares Authorized	100000000	xbrli:shares	INF
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Preferred Stock, Shares Authorized	100000000	xbrli:shares	INF
14	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Share Repurchase Program [Domain]	Preferred Stock, Shares Issued	0	xbrli:shares	INF
15	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Preferred Stock, Shares Issued	0	xbrli:shares	INF
16	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Share Repurchase Program [Domain]	Preferred Stock, Shares Issued	0	xbrli:shares	INF
17	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Preferred Stock, Shares Issued	0	xbrli:shares	INF
18	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Share Repurchase Program [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF
19	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Class of Stock [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF
20	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Share Repurchase Program [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Class of Stock [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF
22	0001652044 (http://www.sec.gov/CIK)	2016-10-31	goog:ShareRepurchaseProgramMember (label)	Stock Repurchase Program, Authorized Amount	7000000000	iso4217:USD	-8
23	0001652044 (http://www.sec.gov/CIK)	2016-10-31	goog:CapitalClassCMember (label)	Stock Repurchase Program, Authorized Amount	7000000000	iso4217:USD	-8
24	0001652044 (http://www.sec.gov/CIK)	2018-01-31	goog:ShareRepurchaseProgramMember (label)	Stock Repurchase Program, Authorized Amount	8600000000.0	iso4217:USD	INF
25	0001652044 (http://www.sec.gov/CIK)	2018-01-31	goog:CapitalClassCMember (label)	Stock Repurchase Program, Authorized Amount	8600000000.0	iso4217:USD	INF
26	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:ShareRepurchaseProgramMember (label)	Stock Repurchased and Retired During Period, Shares	5200000	xbrli:shares	-5
27	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	Stock Repurchased and Retired During Period, Shares	5200000	xbrli:shares	-5
28	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:ShareRepurchaseProgramMember (label)	Stock Repurchased and Retired During Period, Shares	8200000	xbrli:shares	-5
29	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	Stock Repurchased and Retired During Period, Shares	8200000	xbrli:shares	-5
30	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Share Repurchase Program [Domain]	Stock Repurchased and Retired During Period, Value	3693000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Class of Stock [Domain]	Stock Repurchased and Retired During Period, Value	3693000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Share Repurchase Program [Domain]	Stock Repurchased and Retired During Period, Value	4846000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Class of Stock [Domain]	Stock Repurchased and Retired During Period, Value	4846000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:ShareRepurchaseProgramMember (label)	Stock Repurchased and Retired During Period, Value	4800000000	iso4217:USD	-8
35	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	Stock Repurchased and Retired During Period, Value	4800000000	iso4217:USD	-8
36	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Share Repurchase Program [Domain]	Stock Repurchased and Retired During Period, Value	9075000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Stock Repurchased and Retired During Period, Value	9075000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:ShareRepurchaseProgramMember (label)	Stock Repurchased and Retired During Period, Value	9100000000	iso4217:USD	-8
39	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	Stock Repurchased and Retired During Period, Value	9100000000	iso4217:USD	-8

Fact Table
Network	2413402 - Disclosure - Net Income Per Share (Schedule of Earnings Per Share) (Details) (http://www.google.com/role/NetIncomePerShareScheduleOfEarningsPerShareDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	goog:DilutiveSecuritiesEffectOnBasicEarningsPerShareDilutiveEquitySecurities (label)	-10000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	goog:DilutiveSecuritiesEffectOnBasicEarningsPerShareDilutiveEquitySecurities (label)	-9000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	goog:DilutiveSecuritiesEffectOnBasicEarningsPerShareDilutiveEquitySecurities (label)	-2000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	0	xbrli:shares	-3
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	48859000	xbrli:shares	-3
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	0	xbrli:shares	-3
7	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	0	xbrli:shares	-3
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	47146000	xbrli:shares	-3
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	0	xbrli:shares	-3
10	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	0	xbrli:shares	-3
11	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	46864000	xbrli:shares	-3
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	goog:IncrementalCommonSharesAttributableToConversionOfCommonStock (label)	0	xbrli:shares	-3
13	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	goog:NetIncomeLossAvailableToCommonStockholdersBeforeReallocationOfUndistributedEarningsDiluted (label)	9752000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	goog:NetIncomeLossAvailableToCommonStockholdersBeforeReallocationOfUndistributedEarningsDiluted (label)	8323000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	goog:NetIncomeLossAvailableToCommonStockholdersBeforeReallocationOfUndistributedEarningsDiluted (label)	1382000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	goog:ReallocationOfUndistributedEarnings (label)	-94000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	goog:ReallocationOfUndistributedEarnings (label)	94000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	goog:ReallocationOfUndistributedEarnings (label)	21000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	goog:ReallocationOfUndistributedEarnings (label)	-74000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	goog:ReallocationOfUndistributedEarnings (label)	74000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	goog:ReallocationOfUndistributedEarnings (label)	14000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	goog:ReallocationOfUndistributedEarnings (label)	-146000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	goog:ReallocationOfUndistributedEarnings (label)	146000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	goog:ReallocationOfUndistributedEarnings (label)	24000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	0	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	1382000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	0	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	0	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	862000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	0	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	0	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	2072000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	goog:ReallocationOfUndistributedEarningsAsResultOfConversionOfShares (label)	0	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Class of Stock [Domain]	Earnings Per Share, Basic	28.32	iso4217:USD/xbrli:shares	2
35	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	Earnings Per Share, Basic	28.32	iso4217:USD/xbrli:shares	2
36	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	Earnings Per Share, Basic	28.32	iso4217:USD/xbrli:shares	2
37	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	Earnings Per Share, Basic	28.32	iso4217:USD/xbrli:shares	2
38	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Class of Stock [Domain]	Earnings Per Share, Basic	18.27	iso4217:USD/xbrli:shares	2
39	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	Earnings Per Share, Basic	18.27	iso4217:USD/xbrli:shares	2
40	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	Earnings Per Share, Basic	18.27	iso4217:USD/xbrli:shares	2
41	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	Earnings Per Share, Basic	18.27	iso4217:USD/xbrli:shares	2
42	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Earnings Per Share, Basic	44.22	iso4217:USD/xbrli:shares	2
43	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	Earnings Per Share, Basic	44.22	iso4217:USD/xbrli:shares	2
44	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	Earnings Per Share, Basic	44.22	iso4217:USD/xbrli:shares	2
45	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	Earnings Per Share, Basic	44.22	iso4217:USD/xbrli:shares	2
46	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Class of Stock [Domain]	Earnings Per Share, Diluted	27.85	iso4217:USD/xbrli:shares	2
47	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	Earnings Per Share, Diluted	27.85	iso4217:USD/xbrli:shares	2
48	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	Earnings Per Share, Diluted	27.85	iso4217:USD/xbrli:shares	2
49	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	Earnings Per Share, Diluted	27.85	iso4217:USD/xbrli:shares	2
50	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Class of Stock [Domain]	Earnings Per Share, Diluted	18.0	iso4217:USD/xbrli:shares	2
51	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	Earnings Per Share, Diluted	18.0	iso4217:USD/xbrli:shares	2
52	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	Earnings Per Share, Diluted	18.0	iso4217:USD/xbrli:shares	2
53	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	Earnings Per Share, Diluted	18.0	iso4217:USD/xbrli:shares	2
54	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Class of Stock [Domain]	Earnings Per Share, Diluted	43.7	iso4217:USD/xbrli:shares	2
55	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	Earnings Per Share, Diluted	43.7	iso4217:USD/xbrli:shares	2
56	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	Earnings Per Share, Diluted	43.7	iso4217:USD/xbrli:shares	2
57	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	Earnings Per Share, Diluted	43.7	iso4217:USD/xbrli:shares	2
58	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	8873000	xbrli:shares	-3
59	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	2055000	xbrli:shares	-3
60	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	xbrli:shares	-3
61	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	9491000	xbrli:shares	-3
62	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	1192000	xbrli:shares	-3
63	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	xbrli:shares	-3
64	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	7456000	xbrli:shares	-3
65	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	689000	xbrli:shares	-3
66	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	xbrli:shares	-3
67	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	Net Income (Loss) Available to Common Stockholders, Basic	9762000000	iso4217:USD	-6
68	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	Net Income (Loss) Available to Common Stockholders, Basic	8332000000	iso4217:USD	-6
69	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	Net Income (Loss) Available to Common Stockholders, Basic	1384000000	iso4217:USD	-6
70	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	Net Income (Loss) Available to Common Stockholders, Basic	6362000000	iso4217:USD	-6
71	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	Net Income (Loss) Available to Common Stockholders, Basic	5438000000	iso4217:USD	-6
72	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	Net Income (Loss) Available to Common Stockholders, Basic	862000000	iso4217:USD	-6
73	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	Net Income (Loss) Available to Common Stockholders, Basic	15464000000	iso4217:USD	-6
74	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	Net Income (Loss) Available to Common Stockholders, Basic	13200000000	iso4217:USD	-6
75	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	Net Income (Loss) Available to Common Stockholders, Basic	2072000000	iso4217:USD	-6
76	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	Net Income (Loss) Available to Common Stockholders, Diluted	9846000000	iso4217:USD	-6
77	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	Net Income (Loss) Available to Common Stockholders, Diluted	9611000000	iso4217:USD	-6
78	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	Net Income (Loss) Available to Common Stockholders, Diluted	1361000000	iso4217:USD	-6
79	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	Net Income (Loss) Available to Common Stockholders, Diluted	6436000000	iso4217:USD	-6
80	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	Net Income (Loss) Available to Common Stockholders, Diluted	6226000000	iso4217:USD	-6
81	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	Net Income (Loss) Available to Common Stockholders, Diluted	848000000	iso4217:USD	-6
82	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	Net Income (Loss) Available to Common Stockholders, Diluted	15610000000	iso4217:USD	-6
83	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	Net Income (Loss) Available to Common Stockholders, Diluted	15126000000	iso4217:USD	-6
84	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	Net Income (Loss) Available to Common Stockholders, Diluted	2048000000	iso4217:USD	-6
85	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	Weighted Average Number of Shares Outstanding, Diluted	353575000	xbrli:shares	-3
86	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	Weighted Average Number of Shares Outstanding, Diluted	345131000	xbrli:shares	-3
87	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	Weighted Average Number of Shares Outstanding, Diluted	48859000	xbrli:shares	-3
88	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	Weighted Average Number of Shares Outstanding, Diluted	357642000	xbrli:shares	-3
89	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	Weighted Average Number of Shares Outstanding, Diluted	345942000	xbrli:shares	-3
90	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	Weighted Average Number of Shares Outstanding, Diluted	47146000	xbrli:shares	-3
91	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	Weighted Average Number of Shares Outstanding, Diluted	357184000	xbrli:shares	-3
92	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	Weighted Average Number of Shares Outstanding, Diluted	346101000	xbrli:shares	-3
93	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	Weighted Average Number of Shares Outstanding, Diluted	46864000	xbrli:shares	-3
94	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:CapitalClassCMember (label)	Weighted Average Number of Shares Outstanding, Basic	344702000	xbrli:shares	-3
95	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class A [Member]	Weighted Average Number of Shares Outstanding, Basic	294217000	xbrli:shares	-3
96	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Class B [Member]	Weighted Average Number of Shares Outstanding, Basic	48859000	xbrli:shares	-3
97	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:CapitalClassCMember (label)	Weighted Average Number of Shares Outstanding, Basic	348151000	xbrli:shares	-3
98	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class A [Member]	Weighted Average Number of Shares Outstanding, Basic	297604000	xbrli:shares	-3
99	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Class B [Member]	Weighted Average Number of Shares Outstanding, Basic	47146000	xbrli:shares	-3
100	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:CapitalClassCMember (label)	Weighted Average Number of Shares Outstanding, Basic	349728000	xbrli:shares	-3
101	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class A [Member]	Weighted Average Number of Shares Outstanding, Basic	298548000	xbrli:shares	-3
102	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Class B [Member]	Weighted Average Number of Shares Outstanding, Basic	46864000	xbrli:shares	-3

Fact Table
Network	2414402 - Disclosure - Compensation Plans (Stock Plans) (Details) (http://www.google.com/role/CompensationPlansStockPlansDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Employee Stock Option [Member]	goog:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationTerm (label)	_1097404
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Equity Award [Domain]	Common Stock, Capital Shares Reserved for Future Issuance	31848134	xbrli:shares	INF
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	_1098560

Fact Table
Network	2414403 - Disclosure - Compensation Plans (Stock Based Compensation) (Details) (http://www.google.com/role/CompensationPlansStockBasedCompensationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	goog:TaxBenefitFromStockBasedAwardActivity (label)	2100000000	iso4217:USD	-8
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	goog:TaxBenefitFromStockBasedAwardActivity (label)	2700000000	iso4217:USD	-8
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:TaxBenefitFromStockBasedAwardActivity (label)	2100000000	iso4217:USD	-8
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Allocated Share-based Compensation Expense	6900000000	iso4217:USD	-8
5	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Allocated Share-based Compensation Expense	7900000000	iso4217:USD	-8
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Allocated Share-based Compensation Expense	10000000000	iso4217:USD	-8
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	1500000000	iso4217:USD	-8
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	1600000000	iso4217:USD	-8
9	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	1500000000	iso4217:USD	-8
10	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Share-based Compensation	6700000000	iso4217:USD	-8
11	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Share-based Compensation	6703000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Share-based Compensation	7679000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Share-based Compensation	7700000000	iso4217:USD	-8
14	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Share-based Compensation	9353000000	iso4217:USD	-6

Fact Table
Network	2414404 - Disclosure - Compensation Plans (Stock Based Award Activities) (Details) (http://www.google.com/role/CompensationPlansStockBasedAwardActivitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Restricted Stock Units (RSUs) [Member]	Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	16200000000	iso4217:USD	-8
2	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restricted Stock Units (RSUs) [Member]	Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	_1078058
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	1431009	xbrli:shares	INF
4	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	814.19	iso4217:USD/xbrli:shares	2
5	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	12669251	xbrli:shares	INF
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	713.89	iso4217:USD/xbrli:shares	2
7	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	845.06	iso4217:USD/xbrli:shares	2
8	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	1095.89	iso4217:USD/xbrli:shares	2
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	20077346	xbrli:shares	INF
10	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	18467678	xbrli:shares	INF
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	712.45	iso4217:USD/xbrli:shares	2
12	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	936.96	iso4217:USD/xbrli:shares	2
13	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	12847910	xbrli:shares	INF
14	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	9000000000	iso4217:USD	-8
15	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	11300000000	iso4217:USD	-8
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	14100000000	iso4217:USD	-8
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	756.45	iso4217:USD/xbrli:shares	2

Fact Table
Network	2414405 - Disclosure - Compensation Plans (401k Plans and Performance Fees) (Details) (http://www.google.com/role/CompensationPlans401KPlansAndPerformanceFeesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:CompensationExpensePerformanceFees (label)	1200000000	iso4217:USD	-8
2	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:DefinedContributionPlanNumberofPlans (label)	2	goog:plan	INF
3	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Defined Contribution Plan, Cost	385000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Defined Contribution Plan, Cost	448000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Defined Contribution Plan, Cost	691000000	iso4217:USD	-6

Fact Table
Network	2415402 - Disclosure - Income Taxes (Narrative) (Details) (http://www.google.com/role/IncomeTaxesNarrativeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Income Tax Authority [Domain]	goog:NumberOfTaxJurisdictions (label)	2	goog:jurisdiction	INF
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Tax Authority [Domain]	goog:TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseBenefit (label)	-376000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Tax Authority [Domain]	goog:TaxCutsandJobsActof2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit (label)	10200000000	iso4217:USD	-8
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Income Tax Authority [Domain]	Decrease in Unrecognized Tax Benefits is Reasonably Possible	600000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Income Tax Authority [Domain]	Income (Loss) from Continuing Operations before Income Taxes, Domestic	12000000000	iso4217:USD	-8
6	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Tax Authority [Domain]	Income (Loss) from Continuing Operations before Income Taxes, Domestic	10700000000	iso4217:USD	-8
7	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Income Tax Authority [Domain]	Income (Loss) from Continuing Operations before Income Taxes, Domestic	15800000000	iso4217:USD	-8
8	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Income Tax Authority [Domain]	Income (Loss) from Continuing Operations before Income Taxes, Foreign	12100000000	iso4217:USD	-8
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Tax Authority [Domain]	Income (Loss) from Continuing Operations before Income Taxes, Foreign	16500000000	iso4217:USD	-8
10	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Income Tax Authority [Domain]	Income (Loss) from Continuing Operations before Income Taxes, Foreign	19100000000	iso4217:USD	-8
11	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Domestic Tax Authority [Member]	Operating Loss Carryforwards	1200000000	iso4217:USD	-8
12	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Foreign Tax Authority [Member]	Operating Loss Carryforwards	950000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	State and Local Jurisdiction [Member]	Operating Loss Carryforwards	1400000000	iso4217:USD	-8
14	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Income Tax Authority [Domain]	Tax Credit Carryforward, Amount	2400000000	iso4217:USD	-8
15	0001652044 (http://www.sec.gov/CIK)	2015-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits	4167000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits	5393000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits	5400000000	iso4217:USD	-8
18	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits	4696000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits	4700000000	iso4217:USD	-8
20	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits	4652000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits	4700000000	iso4217:USD	-8
22	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	362000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	490000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2016-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits that Would Impact Effective Tax Rate	4300000000	iso4217:USD	-8
25	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits that Would Impact Effective Tax Rate	3000000000	iso4217:USD	-8
26	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Income Tax Authority [Domain]	Unrecognized Tax Benefits that Would Impact Effective Tax Rate	2900000000	iso4217:USD	-8

Fact Table
Network	2415403 - Disclosure - Income Taxes (Provision for Income Taxes) (Details) (http://www.google.com/role/IncomeTaxesProvisionForIncomeTaxesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Current Federal, State and Local, Tax Expense (Benefit)	3826000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Current Federal, State and Local, Tax Expense (Benefit)	12608000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Current Federal, State and Local, Tax Expense (Benefit)	2153000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Current Foreign Tax Expense (Benefit)	966000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Current Foreign Tax Expense (Benefit)	1746000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Current Foreign Tax Expense (Benefit)	1251000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Current Income Tax Expense (Benefit)	4792000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Current Income Tax Expense (Benefit)	14354000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Current Income Tax Expense (Benefit)	3404000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Deferred Federal, State and Local, Tax Expense (Benefit)	-70000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Deferred Federal, State and Local, Tax Expense (Benefit)	220000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Deferred Federal, State and Local, Tax Expense (Benefit)	907000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Deferred Foreign Income Tax Expense (Benefit)	-50000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Deferred Foreign Income Tax Expense (Benefit)	-43000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Deferred Foreign Income Tax Expense (Benefit)	-134000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Deferred Income Tax Expense (Benefit)	-120000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Deferred Income Tax Expense (Benefit)	177000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Deferred Income Tax Expense (Benefit)	773000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	4672000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Tax Expense (Benefit)	14531000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Tax Expense (Benefit)	4177000000	iso4217:USD	-6

Fact Table
Network	2415404 - Disclosure - Income Taxes (Reconciliation of Federal Statutory Income Tax Rate to Effective Income Tax Rate) (Details) (http://www.google.com/role/IncomeTaxesReconciliationOfFederalStatutoryIncomeTaxRateToEffectiveIncomeTaxRateDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	goog:EffectiveIncomeTaxRateReconciliationRegulatoryFine (label)	0.0	xbrli:pure	3
2	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	goog:EffectiveIncomeTaxRateReconciliationRegulatoryFine (label)	0.035	xbrli:pure	3
3	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:EffectiveIncomeTaxRateReconciliationRegulatoryFine (label)	0.031	xbrli:pure	3
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	goog:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsPercent (label)	0.0	xbrli:pure	3
5	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	goog:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsPercent (label)	0.376	xbrli:pure	3
6	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	goog:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsPercent (label)	-0.001	xbrli:pure	3
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Percent	0.193	xbrli:pure	3
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Percent	0.534	xbrli:pure	3
9	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Percent	0.12	xbrli:pure	3
10	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	0.35	xbrli:pure	INF
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	0.35	xbrli:pure	INF
12	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	0.21	xbrli:pure	INF
13	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	0.001	xbrli:pure	3
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	0.009	xbrli:pure	3
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	-0.02	xbrli:pure	3
16	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	0.0	xbrli:pure	3
17	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	-0.014	xbrli:pure	3
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	-0.012	xbrli:pure	3
19	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	-0.11	xbrli:pure	3
20	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	-0.142	xbrli:pure	3
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	-0.049	xbrli:pure	3
22	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent	0.034	xbrli:pure	3
23	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent	0.045	xbrli:pure	3
24	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent	0.022	xbrli:pure	3
25	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.006	xbrli:pure	3
26	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	-0.017	xbrli:pure	3
27	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.007	xbrli:pure	3
28	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent	0.02	xbrli:pure	3
29	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent	0.018	xbrli:pure	3
30	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent	0.024	xbrli:pure	3

Fact Table
Network	2415405 - Disclosure - Income Taxes (Significant Components of Deferred Tax Assets and Liabilities) (Details) (http://www.google.com/role/IncomeTaxesSignificantComponentsOfDeferredTaxAssetsAndLiabilitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	goog:DeferredTaxAssetsBasisDifferenceInInvestmentInHomeBusiness (label)	849000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:DeferredTaxAssetsBasisDifferenceInInvestmentInHomeBusiness (label)	657000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	goog:DeferredTaxAssetsDeferredCostSharing (label)	498000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:DeferredTaxAssetsDeferredCostSharing (label)	597000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	goog:DeferredTaxLiabilitiesRenewableEnergyInvestments (label)	531000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	goog:DeferredTaxLiabilitiesRenewableEnergyInvestments (label)	500000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Liabilities, Gross	1570000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Gross	3491000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Gross	4351000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Gross	5781000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Net	250000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Net of Valuation Allowance	1820000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Net of Valuation Allowance	2964000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Operating Loss Carryforwards	320000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Operating Loss Carryforwards	557000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Other	244000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Other	251000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Tax Credit Carryforwards, Other	1187000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Tax Credit Carryforwards, Other	1979000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits	285000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits	387000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	251000000	iso4217:USD	-6
23	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	291000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other	717000000	iso4217:USD	-6
25	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other	1062000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Valuation Allowance	2531000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Valuation Allowance	2817000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Net	527000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Liabilities, Intangible Assets	419000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Intangible Assets	229000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Liabilities, Investments	22000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Investments	1143000000	iso4217:USD	-6
33	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Liabilities, Other	47000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Other	237000000	iso4217:USD	-6
35	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Liabilities, Property, Plant and Equipment	551000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Property, Plant and Equipment	1382000000	iso4217:USD	-6

Fact Table
Network	2415406 - Disclosure - Income Taxes (Summary of Activity Related to Gross Unrecognized Tax Benefits) (Details) (http://www.google.com/role/IncomeTaxesSummaryOfActivityRelatedToGrossUnrecognizedTaxBenefitsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2015-12-31	null	Unrecognized Tax Benefits	4167000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-12-31	null	Unrecognized Tax Benefits	5393000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2016-12-31	null	Unrecognized Tax Benefits	5400000000	iso4217:USD	-8
4	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Unrecognized Tax Benefits	4696000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2017-12-31	null	Unrecognized Tax Benefits	4700000000	iso4217:USD	-8
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecognized Tax Benefits	4652000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecognized Tax Benefits	4700000000	iso4217:USD	-8
8	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	157000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	257000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	623000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	196000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	1875000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	191000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	680000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	750000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	449000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	899000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	685000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	321000000	iso4217:USD	-6

Fact Table
Network	2416402 - Disclosure - Information about Segments and Geographic Areas (Revenue by Segment) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasRevenueBySegmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	90272000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	79383000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	15598000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	63785000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	10601000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	89984000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Other Segments [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	288000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	110855000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	95375000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	17587000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	77788000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	15003000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	110378000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Other Segments [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	477000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	136819000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	116318000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	19982000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	96336000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	19906000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Revenue from Contract with Customer, Excluding Assessed Tax	136224000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Other Segments [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	595000000	iso4217:USD	-6

Fact Table
Network	2416403 - Disclosure - Information about Segments and Geographic Areas (Operating Income/Loss by Segment) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasOperatingIncomeLossBySegmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Consolidation Items [Domain]	Operating Income (Loss)	23716000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Operating Income (Loss)	23716000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Corporate, Non-Segment [Member]	Operating Income (Loss)	-598000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member]	Operating Income (Loss)	27055000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Operating Income (Loss)	27055000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member]	Operating Income (Loss)	-2741000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Other Segments [Member]	Operating Income (Loss)	-2741000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Consolidation Items [Domain]	Operating Income (Loss)	26146000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Operating Income (Loss)	26146000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Corporate, Non-Segment [Member]	Operating Income (Loss)	-3407000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member]	Operating Income (Loss)	32287000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Operating Income (Loss)	32287000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member]	Operating Income (Loss)	-2734000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Other Segments [Member]	Operating Income (Loss)	-2734000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Consolidation Items [Domain]	Operating Income (Loss)	26321000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Operating Income (Loss)	26321000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Corporate, Non-Segment [Member]	Operating Income (Loss)	-6838000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member]	Operating Income (Loss)	36517000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Operating Income (Loss)	36517000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member]	Operating Income (Loss)	-3358000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Other Segments [Member]	Operating Income (Loss)	-3358000000	iso4217:USD	-6

Fact Table
Network	2416404 - Disclosure - Information about Segments and Geographic Areas (Capital Expenditures by Segment) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasCapitalExpendituresBySegmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Consolidation Items [Domain]	Payments to Acquire Property, Plant, and Equipment	10212000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Payments to Acquire Property, Plant, and Equipment	10212000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segment Reconciling Items [Member]	Payments to Acquire Property, Plant, and Equipment	-590000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member]	Payments to Acquire Property, Plant, and Equipment	9437000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Payments to Acquire Property, Plant, and Equipment	9437000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member]	Payments to Acquire Property, Plant, and Equipment	1365000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Other Segments [Member]	Payments to Acquire Property, Plant, and Equipment	1365000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Consolidation Items [Domain]	Payments to Acquire Property, Plant, and Equipment	13184000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Payments to Acquire Property, Plant, and Equipment	13184000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segment Reconciling Items [Member]	Payments to Acquire Property, Plant, and Equipment	72000000	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member]	Payments to Acquire Property, Plant, and Equipment	12619000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Payments to Acquire Property, Plant, and Equipment	12619000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member]	Payments to Acquire Property, Plant, and Equipment	493000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Other Segments [Member]	Payments to Acquire Property, Plant, and Equipment	493000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Consolidation Items [Domain]	Payments to Acquire Property, Plant, and Equipment	25139000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Payments to Acquire Property, Plant, and Equipment	25139000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segment Reconciling Items [Member]	Payments to Acquire Property, Plant, and Equipment	-502000000	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member]	Payments to Acquire Property, Plant, and Equipment	25460000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Payments to Acquire Property, Plant, and Equipment	25460000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member]	Payments to Acquire Property, Plant, and Equipment	181000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Other Segments [Member]	Payments to Acquire Property, Plant, and Equipment	181000000	iso4217:USD	-6

Fact Table
Network	2416405 - Disclosure - Information about Segments and Geographic Areas (Stock-based Compensation and Depreciation, Amortization and Impairment by Segment) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasStockBasedCompensationAndDepreciationAmortizationAndImpairmentBySegmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Consolidation Items [Domain]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	6144000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	6144000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Corporate, Non-Segment [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	4000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	5882000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	5882000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	258000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Other Segments [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	258000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Consolidation Items [Domain]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	6915000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	6915000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Corporate, Non-Segment [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	0	iso4217:USD	-6
11	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	6608000000	iso4217:USD	-6
12	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	6608000000	iso4217:USD	-6
13	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	307000000	iso4217:USD	-6
14	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Other Segments [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	307000000	iso4217:USD	-6
15	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Consolidation Items [Domain]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	9035000000	iso4217:USD	-6
16	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	9035000000	iso4217:USD	-6
17	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Corporate, Non-Segment [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	0	iso4217:USD	-6
18	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	8708000000	iso4217:USD	-6
19	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	8708000000	iso4217:USD	-6
20	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	327000000	iso4217:USD	-6
21	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Other Segments [Member]	goog:DepreciationAmortizationAndImpairmentOnDispositionOfPropertyAndEquipment (label)	327000000	iso4217:USD	-6
22	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Consolidation Items [Domain]	Share-based Compensation	6700000000	iso4217:USD	-8
23	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Consolidation Items [Domain]	Share-based Compensation	6703000000	iso4217:USD	-6
24	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Share-based Compensation	6700000000	iso4217:USD	-8
25	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Share-based Compensation	6703000000	iso4217:USD	-6
26	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Corporate, Non-Segment [Member]	Share-based Compensation	130000000	iso4217:USD	-6
27	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member]	Share-based Compensation	6201000000	iso4217:USD	-6
28	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	goog:GoogleInc.Member (label)	Share-based Compensation	6201000000	iso4217:USD	-6
29	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member]	Share-based Compensation	372000000	iso4217:USD	-6
30	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Other Segments [Member]	Share-based Compensation	372000000	iso4217:USD	-6
31	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Consolidation Items [Domain]	Share-based Compensation	7679000000	iso4217:USD	-6
32	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Consolidation Items [Domain]	Share-based Compensation	7700000000	iso4217:USD	-8
33	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Share-based Compensation	7679000000	iso4217:USD	-6
34	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Share-based Compensation	7700000000	iso4217:USD	-8
35	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Corporate, Non-Segment [Member]	Share-based Compensation	148000000	iso4217:USD	-6
36	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member]	Share-based Compensation	7168000000	iso4217:USD	-6
37	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	goog:GoogleInc.Member (label)	Share-based Compensation	7168000000	iso4217:USD	-6
38	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member]	Share-based Compensation	363000000	iso4217:USD	-6
39	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Other Segments [Member]	Share-based Compensation	363000000	iso4217:USD	-6
40	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Consolidation Items [Domain]	Share-based Compensation	9353000000	iso4217:USD	-6
41	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Share-based Compensation	9353000000	iso4217:USD	-6
42	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Corporate, Non-Segment [Member]	Share-based Compensation	109000000	iso4217:USD	-6
43	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member]	Share-based Compensation	8755000000	iso4217:USD	-6
44	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	goog:GoogleInc.Member (label)	Share-based Compensation	8755000000	iso4217:USD	-6
45	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member]	Share-based Compensation	489000000	iso4217:USD	-6
46	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Other Segments [Member]	Share-based Compensation	489000000	iso4217:USD	-6

Fact Table
Network	2416406 - Disclosure - Information about Segments and Geographic Areas (Long-Lived Assets by Geographic Area) (Details) (http://www.google.com/role/InformationAboutSegmentsAndGeographicAreasLongLivedAssetsByGeographicAreaDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Geographical [Domain]	Assets, Noncurrent	72987000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2017-12-31	UNITED STATES	Assets, Noncurrent	55113000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	Non-US [Member]	Assets, Noncurrent	17874000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Geographical [Domain]	Assets, Noncurrent	97116000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2018-12-31	UNITED STATES	Assets, Noncurrent	74882000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2018-12-31	Non-US [Member]	Assets, Noncurrent	22234000000	iso4217:USD	-6

Fact Table
Network	2431401 - Schedule - Schedule II: Valuation and Qualifying Accounts (Details) (http://www.google.com/role/ScheduleIiValuationAndQualifyingAccountsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001652044 (http://www.sec.gov/CIK)	2015-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	296000000	iso4217:USD	-6
2	0001652044 (http://www.sec.gov/CIK)	2016-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	467000000	iso4217:USD	-6
3	0001652044 (http://www.sec.gov/CIK)	2017-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	674000000	iso4217:USD	-6
4	0001652044 (http://www.sec.gov/CIK)	2018-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	729000000	iso4217:USD	-6
5	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	942000000	iso4217:USD	-6
6	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	1131000000	iso4217:USD	-6
7	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	1115000000	iso4217:USD	-6
8	0001652044 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	771000000	iso4217:USD	-6
9	0001652044 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	924000000	iso4217:USD	-6
10	0001652044 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	SEC Schedule, 12-09, Allowance, Credit Loss [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	1060000000	iso4217:USD	-6

Rules

Type	Defined	Bound	OK	Fail
formula	0	0	0	0
existenceAssertion	0	0	0	0
valueAssertion	0	0	0	0
calculation	221	3029	616	2413

Rule Details

Errors and Warnings

Other than rule related

NONE.

For more information: http://logicalcontracts.com/xbrl-and-sbrm-reporting/
DISCLAIMER: this analysis is provided by software still under development, and likely incomplete or even erroneous; do NOT use it other than for experimental, inconsequential purposes

Report

User Alterations

Table of Contents

Terms

Model Structures

Fact Tables

Rules

Rule Details

Errors and Warnings