Report Analysis

Generated at 2020-10-13T23:43:02+0000 for charles.hoffman@me.com. This page will remain online for about 48 hours.

Report

Submitted: https://www.sec.gov/Archives/edgar/data/1018724/000101872419000004/amzn-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 Statements of Cash Flows	Structures	Facts
1002000 - Statement - Consolidated Statements Of Operations	Structures	Facts
1002000 - Statement - Consolidated Statements of Comprehensive Income	Structures	Facts
1002501 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical)	Structures	Facts
1004000 - Statement - Consolidated Balance Sheets	Structures	Facts
1004501 - Statement - Consolidated Balance Sheets (Parenthetical)	Structures	Facts
1006000 - Statement - Consolidated Statements of Stockholders' Equity	Structures	Facts
2101100 - Disclosure - Description of Business and Accounting Policies	Structures	Facts
2102100 - Disclosure - Cash, Cash Equivalents, and Marketable Securities	Structures	Facts
2103100 - Disclosure - Property and Equipment	Structures	Facts
2104100 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets	Structures	Facts
2105100 - Disclosure - Long-Term Debt	Structures	Facts
2106100 - Disclosure - Other Long-Term Liabilities	Structures	Facts
2107100 - Disclosure - Commitments and Contingencies	Structures	Facts
2108100 - Disclosure - Stockholders' Equity	Structures	Facts
2110100 - Disclosure - Income Taxes	Structures	Facts
2111100 - Disclosure - Segment Information	Structures	Facts
2112100 - Disclosure - Quarterly Results (Unaudited)	Structures	Facts
2201201 - Disclosure - Description of Business and Accounting Policies (Policies)	Structures	Facts
2301302 - Disclosure - Description of Business and Accounting Policies (Tables)	Structures	Facts
2302301 - Disclosure - Cash, Cash Equivalents, and Marketable Securities (Tables)	Structures	Facts
2302302 - Disclosure - Cash, Cash Equivalents, and Marketable Securities Reconciliation to Cash Flow (Tables)	Structures	Facts
2303301 - Disclosure - Property and Equipment (Tables)	Structures	Facts
2304301 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets (Tables)	Structures	Facts
2305301 - Disclosure - Long-Term Debt (Tables)	Structures	Facts
2306301 - Disclosure - Other Long-Term Liabilities (Tables)	Structures	Facts
2307301 - Disclosure - Commitments and Contingencies (Tables)	Structures	Facts
2308301 - Disclosure - Stockholders' Equity (Tables)	Structures	Facts
2310301 - Disclosure - Income Taxes (Tables)	Structures	Facts
2311301 - Disclosure - Segment Information (Tables)	Structures	Facts
2312301 - Disclosure - Quarterly Results (Unaudited) (Tables)	Structures	Facts
2401403 - Disclosure - Description of Business and Accounting Policies - Description of Business (Details)	Structures	Facts
2401404 - Disclosure - Description of Business and Accounting Policies - Calculation of Diluted Shares (Details)	Structures	Facts
2401405 - Disclosure - Description of Business and Accounting Policies - Revenue (Details)	Structures	Facts
2401406 - Disclosure - Description of Business and Accounting Policies - Marketing (Details)	Structures	Facts
2401407 - Disclosure - Description of Business and Accounting Policies - Technology and Content (Details)	Structures	Facts
2401408 - Disclosure - Description of Business and Accounting Policies - Other Income (Expense), Net (Details)	Structures	Facts
2401409 - Disclosure - Description of Business and Accounting Policies - Fair Value of Financial Instruments (Details)	Structures	Facts
2401410 - Disclosure - Description of Business and Accounting Policies - Accounts Receivable, Net and Other (Details)	Structures	Facts
2401411 - Disclosure - Description of Business and Accounting Policies - Property and Equipment, Net (Details)	Structures	Facts
2401412 - Disclosure - Description of Business and Accounting Policies - Goodwill (Details)	Structures	Facts
2401413 - Disclosure - Description of Business and Accounting Policies - Video and Music Content (Details)	Structures	Facts
2401414 - Disclosure - Description of Business and Accounting Policies - Accrued Expenses and Other (Details)	Structures	Facts
2401415 - Disclosure - Description of Business and Accounting Policies - Unearned Revenue (Details)	Structures	Facts
2401416 - Disclosure - Description of Business and Accounting Policies - Foreign Currency (Details)	Structures	Facts
2401417 - Disclosure - Description of Business and Accounting Policies - Accounting Pronouncements Recently Adopted (Details)	Structures	Facts
2401418 - Disclosure - Description of Business and Accounting Policies - Accounting Pronouncements Not Yet Adopted (Details)	Structures	Facts
2402403 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Fair Values on Recurring Basis (Details)	Structures	Facts
2402404 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Gross Gains and Gross Losses Realized on Sales of Available-For-Sale Marketable Securities (Details)	Structures	Facts
2402405 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Contractual Maturities (Details)	Structures	Facts
2402406 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Reconciliation to Cash Flow (Details)	Structures	Facts
2403402 - Disclosure - Property and Equipment - Components (Details)	Structures	Facts
2403403 - Disclosure - Property and Equipment - Additional Information (Details)	Structures	Facts
2404402 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Additional Information (Details)	Structures	Facts
2404403 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Allocation of Aggregate Purchase Price of Acquisitions (Details)	Structures	Facts
2404404 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Summary of Goodwill Activity by Segment (Details)	Structures	Facts
2404405 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Acquired Intangible Assets (Details)	Structures	Facts
2404406 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Expected Future Amortization Expense of Acquired Intangible Assets (Details)	Structures	Facts
2405402 - Disclosure - Long-Term Debt - Additional Information (Details)	Structures	Facts
2405403 - Disclosure - Long-Term Debt - Long-Term Debt Obligations (Details)	Structures	Facts
2405404 - Disclosure - Long-Term Debt - Future Principal Payment for Debt (Details)	Structures	Facts
2406402 - Disclosure - Other Long-Term Liabilities - Other Long Term Liabilities Summary (Details)	Structures	Facts
2406403 - Disclosure - Other Long-Term Liabilities - Long Term Capital Lease Obligation (Details)	Structures	Facts
2406404 - Disclosure - Other Long-Term Liabilities - Long Term Finance Lease Obligation (Details)	Structures	Facts
2407402 - Disclosure - Commitments and Contingencies - Commitments (Details)	Structures	Facts
2407403 - Disclosure - Commitments and Contingencies - Principal Contractual Commitments Excluding Open Orders (Details)	Structures	Facts
2407404 - Disclosure - Commitments and Contingencies - Pledged Assets (Details)	Structures	Facts
2407405 - Disclosure - Commitments and Contingencies - Legal Proceedings (Details)	Structures	Facts
2408402 - Disclosure - Stockholders' Equity - Additional Information (Details)	Structures	Facts
2408403 - Disclosure - Stockholders' Equity - Stock-based Compensation Expense (Details)	Structures	Facts
2408404 - Disclosure - Stockholders' Equity - Restricted Stock Unit Activity (Details)	Structures	Facts
2408405 - Disclosure - Stockholders' Equity - Scheduled Vesting for Outstanding Restricted Stock Units (Details)	Structures	Facts
2410402 - Disclosure - Income Taxes - Additional Information (Details)	Structures	Facts
2410403 - Disclosure - Income Taxes - Components of Provision for Income Taxes, Net (Details)	Structures	Facts
2410404 - Disclosure - Income Taxes - U.S. and International Components of Income Before Income Taxes (Details)	Structures	Facts
2410405 - Disclosure - Income Taxes - Items Accounting for Differences Between Income Taxes Computed at Federal Statutory Rate and Provision Recorded for Income Taxes (Details)	Structures	Facts
2410406 - Disclosure - Income Taxes - Deferred Income Tax Assets and Liabilities (Details)	Structures	Facts
2410407 - Disclosure - Income Taxes - Reconciliation of Tax Contingencies (Details)	Structures	Facts
2411402 - Disclosure - Segment Information - Additional Information (Details)	Structures	Facts
2411403 - Disclosure - Segment Information - Reportable Segments and Reconciliation to Consolidated Net Income (Details)	Structures	Facts
2411404 - Disclosure - Segment Information - Disaggregation of Revenue (Details)	Structures	Facts
2411405 - Disclosure - Segment Information Net Sales Attributed to Countries Representing Portion of Consolidated Net Sales (Details)	Structures	Facts
2411406 - Disclosure - Segment Information - Reconciliation of Assets from Segment to Consolidated (Details)	Structures	Facts
2411407 - Disclosure - Segment Information - Reconciliation of Property and Equipment from Segments to Consolidated (Details)	Structures	Facts
2411408 - Disclosure - Segment Information - Reconciliation of Property and Equipment Additions from Segments to Consolidated (Details)	Structures	Facts
2411409 - Disclosure - Segment Information - Depreciation Expense, by Segment (Details)	Structures	Facts
2412402 - Disclosure - Quarterly Results (Unaudited) (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
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2	Consolidation Items [Axis]	xbrli:stringItemType	duration		true	srt	ConsolidationItemsAxis
3	Consolidation Items [Domain]	nonnum:domainItemType	duration		true	srt	ConsolidationItemsDomain
4	Litigation Case [Axis]	xbrli:stringItemType	duration		true	srt	LitigationCaseAxis
5	Litigation Case [Domain]	nonnum:domainItemType	duration		true	srt	LitigationCaseTypeDomain
6	Maximum [Member]	nonnum:domainItemType	duration		true	srt	MaximumMember
7	Minimum [Member]	nonnum:domainItemType	duration		true	srt	MinimumMember
8	Product and Service [Domain]	nonnum:domainItemType	duration		true	srt	ProductsAndServicesDomain
9	Product and Service [Axis]	xbrli:stringItemType	duration		true	srt	ProductOrServiceAxis
10	Range [Domain]	nonnum:domainItemType	duration		true	srt	RangeMember
11	Range [Axis]	xbrli:stringItemType	duration		true	srt	RangeAxis
12	srt:RepurchaseAgreementCounterpartyNameDomain (label)	nonnum:domainItemType	duration		true	srt	RepurchaseAgreementCounterpartyNameDomain
13	Restatement [Domain]	nonnum:domainItemType	duration		true	srt	RestatementDomain
14	Restatement Adjustment [Member]	nonnum:domainItemType	duration		true	srt	RestatementAdjustmentMember
15	Restatement [Axis]	xbrli:stringItemType	duration		true	srt	RestatementAxis
16	Previously Reported [Member]	nonnum:domainItemType	duration		true	srt	ScenarioPreviouslyReportedMember
17	Geographical [Domain]	nonnum:domainItemType	duration		true	srt	SegmentGeographicalDomain
18	Geographical [Axis]	xbrli:stringItemType	duration		true	srt	StatementGeographicalAxis
19	srt:SubsidiariesMember (label)	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 Disclosure [Line Items]	xbrli:stringItemType	duration		true	srt	ValuationAndQualifyingAccountsDisclosureLineItems
22	country:CA (label)	nonnum:domainItemType	duration		true	country	CA
23	GERMANY	nonnum:domainItemType	duration		true	country	DE
24	UNITED KINGDOM	nonnum:domainItemType	duration		true	country	GB
25	JAPAN	nonnum:domainItemType	duration		true	country	JP
26	UNITED STATES	nonnum:domainItemType	duration		true	country	US
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 Standards Update 2016-18 [Member]	nonnum:domainItemType	duration		true	us-gaap	AccountingStandardsUpdate201618Member
31	Accounting Policies [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AccountingPoliciesAbstract
32	Accounting Standards Update 2016-02 [Member]	nonnum:domainItemType	duration		true	us-gaap	AccountingStandardsUpdate201602Member
33	Accounting Standards Update 2014-09 [Member]	nonnum:domainItemType	duration		true	us-gaap	AccountingStandardsUpdate201409Member
34	Accounts Payable, Current	xbrli:monetaryItemType	instant	credit		us-gaap	AccountsPayableCurrent
35	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	AccountsPayableAndAccruedLiabilitiesCurrent
36	Accounts Receivable, Net, Current	xbrli:monetaryItemType	instant	debit		us-gaap	AccountsReceivableNetCurrent
37	Receivable Type [Axis]	xbrli:stringItemType	duration		true	us-gaap	AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
38	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
39	Accounts, Notes, Loans and Financing Receivable [Line Items]	xbrli:stringItemType	duration		true	us-gaap	AccountsNotesAndLoansReceivableLineItems
40	us-gaap:AccruedInvestmentIncomeReceivable (label)	xbrli:monetaryItemType	instant	debit		us-gaap	AccruedInvestmentIncomeReceivable
41	Gift Card Liability, Current	xbrli:monetaryItemType	instant	credit		us-gaap	AccruedLiabilitiesForUnredeeemedGiftCards
42	us-gaap:AccruedLiabilitiesMember (label)	nonnum:domainItemType	duration		true	us-gaap	AccruedLiabilitiesMember
43	us-gaap:AccruedIncomeTaxesNoncurrent (label)	xbrli:monetaryItemType	instant	credit		us-gaap	AccruedIncomeTaxesNoncurrent
44	Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	xbrli:monetaryItemType	instant	credit		us-gaap	AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
45	AOCI Attributable to Parent [Member]	nonnum:domainItemType	duration		true	us-gaap	AccumulatedOtherComprehensiveIncomeMember
46	Accumulated Other Comprehensive Income (Loss), Net of Tax	xbrli:monetaryItemType	instant	credit		us-gaap	AccumulatedOtherComprehensiveIncomeLossNetOfTax
47	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	xbrli:durationItemType	duration			us-gaap	AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
48	Acquired Finite-Lived Intangible Assets [Line Items]	xbrli:stringItemType	duration		true	us-gaap	AcquiredFiniteLivedIntangibleAssetsLineItems
49	Additional Paid in Capital	xbrli:monetaryItemType	instant	credit		us-gaap	AdditionalPaidInCapital
50	Additional Paid-in Capital [Member]	nonnum:domainItemType	duration		true	us-gaap	AdditionalPaidInCapitalMember
51	Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
52	Adjustments for New Accounting Pronouncements [Axis]	xbrli:stringItemType	duration		true	us-gaap	AdjustmentsForNewAccountingPronouncementsAxis
53	Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	xbrli:monetaryItemType	duration	credit		us-gaap	AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
54	Advertising Expense	xbrli:monetaryItemType	duration	debit		us-gaap	AdvertisingExpense
55	Advertising Costs, Policy [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	AdvertisingCostsPolicyTextBlock
56	us-gaap:AllOtherSegmentsMember (label)	nonnum:domainItemType	duration		true	us-gaap	AllOtherSegmentsMember
57	Allocated Share-based Compensation Expense	xbrli:monetaryItemType	duration	debit		us-gaap	AllocatedShareBasedCompensationExpense
58	Allowance for Doubtful Accounts Receivable, Write-offs	xbrli:monetaryItemType	duration	debit		us-gaap	AllowanceForDoubtfulAccountsReceivableWriteOffs
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	Asset-backed Securities [Member]	nonnum:domainItemType	duration		true	us-gaap	AssetBackedSecuritiesMember
64	us-gaap:AssetManagementArrangementMember (label)	nonnum:domainItemType	duration		true	us-gaap	AssetManagementArrangementMember
65	us-gaap:AssetHeldInTrustMember (label)	nonnum:domainItemType	duration		true	us-gaap	AssetHeldInTrustMember
66	Asset Retirement Obligation [Policy Text Block]	nonnum:textBlockItemType	duration			us-gaap	AssetRetirementObligationsPolicy
67	Assets [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AssetsAbstract
68	Assets	xbrli:monetaryItemType	instant	debit		us-gaap	Assets
69	Assets Held under Capital Leases [Member]	nonnum:domainItemType	duration		true	us-gaap	AssetsHeldUnderCapitalLeasesMember
70	Assets, Current	xbrli:monetaryItemType	instant	debit		us-gaap	AssetsCurrent
71	Assets, Current [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AssetsCurrentAbstract
72	us-gaap:AssetsNoncurrentAbstract (label)	xbrli:stringItemType	duration		true	us-gaap	AssetsNoncurrentAbstract
73	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	xbrli:monetaryItemType	instant	credit		us-gaap	AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
74	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasisAbstract
75	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
76	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
77	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate
78	Debt Securities, Available-for-sale, Amortized Cost	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleDebtSecuritiesAmortizedCostBasis
79	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
80	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
81	Available-for-sale Securities, Debt Maturities [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AvailableForSaleSecuritiesDebtMaturitiesAbstract
82	Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract
83	Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost
84	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
85	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
86	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
87	Debt Securities, Available-for-sale	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtSecurities
88	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
89	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value	xbrli:monetaryItemType	instant	debit		us-gaap	AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
90	Debt Securities, Available-for-sale, Realized Gain (Loss) [Abstract]	xbrli:stringItemType	duration		true	us-gaap	AvailableForSaleSecuritiesGrossRealizedGainLossAbstract
91	us-gaap:BasisSwapMember (label)	nonnum:domainItemType	duration		true	us-gaap	BasisSwapMember
92	us-gaap:BondFutureMember (label)	nonnum:domainItemType	duration		true	us-gaap	BondFutureMember
93	us-gaap:BondOptionMember (label)	nonnum:domainItemType	duration		true	us-gaap	BondOptionMember
94	Building [Member]	nonnum:domainItemType	duration		true	us-gaap	BuildingMember
95	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	xbrli:monetaryItemType	instant	credit		us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
96	Business Combination, Consideration Transferred	xbrli:monetaryItemType	duration	credit		us-gaap	BusinessCombinationConsiderationTransferred1
97	Business Combination, Consideration Transferred, Liabilities Incurred	xbrli:monetaryItemType	duration	credit		us-gaap	BusinessCombinationConsiderationTransferredLiabilitiesIncurred
98	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	xbrli:monetaryItemType	instant	credit		us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities
99	Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	xbrli:monetaryItemType	instant	debit		us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets
100	Business Acquisition [Line Items]	xbrli:stringItemType	duration		true	us-gaap	BusinessAcquisitionLineItems
101	Business Acquisition, Acquiree [Domain]	nonnum:domainItemType	duration		true	us-gaap	BusinessAcquisitionAcquireeDomain
102	Business Acquisition [Axis]	xbrli:stringItemType	duration		true	us-gaap	BusinessAcquisitionAxis
103	Business Combinations [Abstract]	xbrli:stringItemType	duration		true	us-gaap	BusinessCombinationsAbstract
104	Business Combination Disclosure [Text Block]	nonnum:textBlockItemType	duration			us-gaap	BusinessCombinationDisclosureTextBlock
105	Business Combination, Consideration Transferred [Abstract]	xbrli:stringItemType	duration		true	us-gaap	BusinessCombinationConsiderationTransferredAbstract
106	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	xbrli:monetaryItemType	instant	debit		us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
107	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	xbrli:monetaryItemType	instant	debit		us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
108	Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]	xbrli:stringItemType	duration		true	us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNetAbstract
109	Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	xbrli:monetaryItemType	instant	debit		us-gaap	BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
110	us-gaap:CapitalSupportAgreementMember (label)	nonnum:domainItemType	duration		true	us-gaap	CapitalSupportAgreementMember
111	Capital Lease Obligations, Noncurrent	xbrli:monetaryItemType	instant	credit		us-gaap	CapitalLeaseObligationsNoncurrent
112	Capital Leases, Future Minimum Payments Due	xbrli:monetaryItemType	instant	credit		us-gaap	CapitalLeasesFutureMinimumPaymentsDue
113	Capital Leases, Future Minimum Payments, Net Minimum Payments	xbrli:monetaryItemType	instant	credit		us-gaap	CapitalLeasesFutureMinimumPaymentsNetMinimumPayments1
114	Capital Loss Carryforward [Member]	nonnum:domainItemType	duration		true	us-gaap	CapitalLossCarryforwardMember
115	Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	xbrli:stringItemType	duration		true	us-gaap	CapitalLeasesFutureMinimumPaymentsDueAbstract
116	Capital Lease Obligations Incurred	xbrli:monetaryItemType	duration	credit		us-gaap	CapitalLeaseObligationsIncurred
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978	amzn:SeniorUnsecuredNotesFourPointEightPercentDueDecemberFifthTwoThousandThirtyFourMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesFourPointEightPercentDueDecemberFifthTwoThousandThirtyFourMember Senior Unsecured Notes Four Point Eight Percent Due December Fifth Two Thousand Thirty Four [Member]
979	amzn:SeniorUnsecuredNotesFourPointNineFivePercentDueDecemberTwentyNineTwoThousandFortyFourMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesFourPointNineFivePercentDueDecemberTwentyNineTwoThousandFortyFourMember Senior Unsecured Notes Four Point Nine Five Percent Due December Twenty Nine Two Thousand Forty Four [Member]
980	amzn:SeniorUnsecuredNotesFourPointTwoFivePercentDueAugustTwentySecondTwoThousandFiftySevenMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesFourPointTwoFivePercentDueAugustTwentySecondTwoThousandFiftySevenMember Senior Unsecured Notes Four Point Two Five Percent Due August Twenty Second Two Thousand Fifty Seven [Member]
981	amzn:SeniorUnsecuredNotesFourPointZeroFivePercentDueAugustTwentySecondTwoThousandFortySevenMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesFourPointZeroFivePercentDueAugustTwentySecondTwoThousandFortySevenMember Senior Unsecured Notes Four Point Zero Five Percent Due August Twenty Second Two Thousand Forty Seven [Member]
982	amzn:SeniorUnsecuredNotesOnePointNinePercentDueAugustTwentyFirstTwoThousandTwentyMemberMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesOnePointNinePercentDueAugustTwentyFirstTwoThousandTwentyMemberMember Senior Unsecured Notes One Point Nine Percent Due August Twenty First Two Thousand Twenty [Member] [Member]
983	amzn:SeniorUnsecuredNotesThreePointEightPercentDueDecemberFifthTwoThousandTwentyFourMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesThreePointEightPercentDueDecemberFifthTwoThousandTwentyFourMember Senior Unsecured Notes Three Point Eight Percent Due December Fifth Two Thousand Twenty Four [Member]
984	amzn:SeniorUnsecuredNotesThreePointEightSevenFivePercentDueAugustTwentySecondTwoThousandThirtySevenMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesThreePointEightSevenFivePercentDueAugustTwentySecondTwoThousandThirtySevenMember Senior Unsecured Notes Three Point Eight Seven Five Percent Due August Twenty Second Two Thousand Thirty Seven [Member]
985	amzn:SeniorUnsecuredNotesThreePointOneFivePercentDueAugustTwentySecondTwoThousandTwentySevenMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesThreePointOneFivePercentDueAugustTwentySecondTwoThousandTwentySevenMember Senior Unsecured Notes Three Point One Five Percent Due August Twenty Second Two Thousand Twenty Seven [Member]
986	amzn:SeniorUnsecuredNotesThreePointThreePercentDueDecemberFifthTwoThousandTwentyOneMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesThreePointThreePercentDueDecemberFifthTwoThousandTwentyOneMember Senior Unsecured Notes Three Point Three Percent Due December Fifth Two Thousand Twenty One [Member]
987	amzn:SeniorUnsecuredNotesTwoPointEightPercentDueAugustTwentySecondTwoThousandTwentyFourMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesTwoPointEightPercentDueAugustTwentySecondTwoThousandTwentyFourMember Senior Unsecured Notes Two Point Eight Percent Due August Twenty Second Two Thousand Twenty Four [Member]
988	amzn:SeniorUnsecuredNotesTwoPointFivePercentDueNovemberTwentyNineTwoThousandTwentyTwoMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesTwoPointFivePercentDueNovemberTwentyNineTwoThousandTwentyTwoMember Senior Unsecured Notes Two Point Five Percent Due November Twenty Nine Two Thousand Twenty Two [Member]
989	amzn:SeniorUnsecuredNotesTwoPointFourPercentDueFebruaryTwentySecondTwoThousandTwentyThreeMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesTwoPointFourPercentDueFebruaryTwentySecondTwoThousandTwentyThreeMember Senior Unsecured Notes Two Point Four Percent Due February Twenty Second Two Thousand Twenty Three [Member]
990	amzn:SeniorUnsecuredNotesTwoPointSixPercentDueDecemberFifthTwoThousandNineteenMember (label)	nonnum:domainItemType	duration		true	amzn	SeniorUnsecuredNotesTwoPointSixPercentDueDecemberFifthTwoThousandNineteenMember Senior Unsecured Notes Two Point Six Percent Due December Fifth Two Thousand Nineteen [Member]
991	amzn:ServiceSubscriptionMember (label)	nonnum:domainItemType	duration		true	amzn	ServiceSubscriptionMember Service, Subscription [Member]
992	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingAfterYearFive (label)	xbrli:sharesItemType	instant			amzn	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingAfterYearFive Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vesting, After Year Five
993	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingNextTwelveMonths (label)	xbrli:sharesItemType	instant			amzn	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingNextTwelveMonths Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vesting, Next Twelve Months
994	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFive (label)	xbrli:sharesItemType	instant			amzn	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFive Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vesting, Year Five
995	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFour (label)	xbrli:sharesItemType	instant			amzn	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFour Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vesting, Year Four
996	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearThree (label)	xbrli:sharesItemType	instant			amzn	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearThree Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vesting, Year Three
997	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearTwo (label)	xbrli:sharesItemType	instant			amzn	ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearTwo Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vesting, Year Two
998	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate (label)	num:percentItemType	instant			amzn	ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Forfeiture Rate
999	amzn:SouqGroupLtdMember (label)	nonnum:domainItemType	duration		true	amzn	SouqGroupLtdMember Souq Group Ltd [Member]
1000	amzn:SubscriptionServicesMember (label)	nonnum:domainItemType	duration		true	amzn	SubscriptionServicesMember Subscription services [Member]
1001	amzn:TaxCutsAndJobsActOf2017ProvisionalIncomeTaxBenefit (label)	xbrli:monetaryItemType	duration	debit		amzn	TaxCutsAndJobsActOf2017ProvisionalIncomeTaxBenefit Tax Cuts And Jobs Act Of 2017, Provisional Income Tax Benefit
1002	amzn:TechnologyAndContentExpense (label)	xbrli:monetaryItemType	duration	debit		amzn	TechnologyAndContentExpense Payroll and related expenses for application development, editorial content, merchandising selection, and systems support; and costs associated with computing, storage and telecommunications infrastructure.
1003	amzn:TechnologyAndContentExpenseMember (label)	nonnum:domainItemType	duration		true	amzn	TechnologyAndContentExpenseMember Technology and Content Expense [Member]
1004	amzn:TechnologyAndContentExpensesPolicyPolicyTextBlock (label)	nonnum:textBlockItemType	duration			amzn	TechnologyAndContentExpensesPolicyPolicyTextBlock Technology and Content Expenses, Policy [Text Block]
1005	amzn:ThirdPartySellerServicesMember (label)	nonnum:domainItemType	duration		true	amzn	ThirdPartySellerServicesMember Third-party seller services [Member]
1006	amzn:TwoThousandEighteenAcquisitionsMember (label)	nonnum:domainItemType	duration		true	amzn	TwoThousandEighteenAcquisitionsMember Two Thousand Eighteen Acquisitions [Member]
1007	amzn:TwoThousandSeventeenAcquisitionsMember (label)	nonnum:domainItemType	duration		true	amzn	TwoThousandSeventeenAcquisitionsMember Two Thousand Seventeen Acquisitions [Member]
1008	amzn:TwoThousandSixteenAcquisitionsMember (label)	nonnum:domainItemType	duration		true	amzn	TwoThousandSixteenAcquisitionsMember Two Thousand Sixteen Acquisitions [Member]
1009	amzn:UnsecuredRevolvingCreditFacilityMember (label)	nonnum:domainItemType	duration		true	amzn	UnsecuredRevolvingCreditFacilityMember Unsecured Revolving Credit Facility
1010	amzn:VendorAccountsReceivableMember (label)	nonnum:domainItemType	duration		true	amzn	VendorAccountsReceivableMember Vendor Accounts Receivable [Member]
1011	amzn:VideoAndMusicContentPolicyPolicyTextBlock (label)	nonnum:textBlockItemType	duration			amzn	VideoAndMusicContentPolicyPolicyTextBlock Video And Music Content, Policy [Policy Text Block]
1012	amzn:WholeFoodsMarketInc.Member (label)	nonnum:domainItemType	duration		true	amzn	WholeFoodsMarketInc.Member Whole Foods Market, Inc. [Member]

Model Structures

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

#	Label	Report Element Class	Period Type	Balance	Name
1	amzn:DocumentAndEntityInformationAbstract (label)	Abstract	duration		amzn:DocumentAndEntityInformationAbstract
2	dei:DocumentType (terseLabel)	Concept (xbrli:stringItemType)	duration		dei:DocumentType
3	dei:AmendmentFlag (terseLabel)	Concept (Boolean)	duration		dei:AmendmentFlag
4	dei:DocumentPeriodEndDate (terseLabel)	Concept (Date)	duration		dei:DocumentPeriodEndDate
5	dei:DocumentFiscalYearFocus (terseLabel)	Concept (gYear)	duration		dei:DocumentFiscalYearFocus
6	dei:DocumentFiscalPeriodFocus (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:DocumentFiscalPeriodFocus
7	dei:EntityRegistrantName (terseLabel)	Concept (String-Normalized)	duration		dei:EntityRegistrantName
8	dei:EntityCentralIndexKey (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:EntityCentralIndexKey
9	dei:CurrentFiscalYearEndDate (terseLabel)	Concept (gMonthDay)	duration		dei:CurrentFiscalYearEndDate
10	dei:EntityWellKnownSeasonedIssuer (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:EntityWellKnownSeasonedIssuer
11	dei:EntityCurrentReportingStatus (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:EntityCurrentReportingStatus
12	dei:EntityVoluntaryFilers (terseLabel)	Concept (xbrli:tokenItemType)	duration		dei:EntityVoluntaryFilers
13	dei:EntityFilerCategory (terseLabel)	Concept (xbrli:stringItemType)	duration		dei:EntityFilerCategory
14	dei:EntityEmergingGrowthCompany (terseLabel)	Concept (Boolean)	duration		dei:EntityEmergingGrowthCompany
15	dei:EntitySmallBusiness (terseLabel)	Concept (Boolean)	duration		dei:EntitySmallBusiness
16	dei:EntityShellCompany (terseLabel)	Concept (Boolean)	duration		dei:EntityShellCompany
17	dei:EntityPublicFloat (terseLabel)	Concept (Monetary)	instant	credit	dei:EntityPublicFloat
18	dei:EntityCommonStockSharesOutstanding (terseLabel)	Concept (Shares)	instant		dei:EntityCommonStockSharesOutstanding

Model Structure
Network	1001000 - Statement - Consolidated Statements of Cash Flows (http://www.amazon.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:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents (periodStartLabel)	Concept (Monetary)	instant	debit	us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
3	us-gaap:NetCashProvidedByUsedInOperatingActivitiesAbstract (terseLabel)	Abstract	duration		us-gaap:NetCashProvidedByUsedInOperatingActivitiesAbstract
4	us-gaap:NetIncomeLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss
5	us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract (terseLabel)	Abstract	duration		us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
6	us-gaap:DepreciationDepletionAndAmortization (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DepreciationDepletionAndAmortization
7	us-gaap:ShareBasedCompensation (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ShareBasedCompensation
8	us-gaap:OtherOperatingActivitiesCashFlowStatement (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherOperatingActivitiesCashFlowStatement
9	us-gaap:OtherNoncashIncomeExpense (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherNoncashIncomeExpense
10	us-gaap:DeferredIncomeTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DeferredIncomeTaxExpenseBenefit
11	us-gaap:IncreaseDecreaseInOperatingCapitalAbstract (terseLabel)	Abstract	duration		us-gaap:IncreaseDecreaseInOperatingCapitalAbstract
12	us-gaap:IncreaseDecreaseInInventories (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:IncreaseDecreaseInInventories
13	us-gaap:IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets (negatedTerseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets
14	us-gaap:IncreaseDecreaseInAccountsPayable (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncreaseDecreaseInAccountsPayable
15	us-gaap:IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
16	us-gaap:IncreaseDecreaseInContractWithCustomerLiability (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncreaseDecreaseInContractWithCustomerLiability
17	us-gaap:NetCashProvidedByUsedInOperatingActivities (totalLabel)	Concept (Monetary)	duration		us-gaap:NetCashProvidedByUsedInOperatingActivities
18	us-gaap:NetCashProvidedByUsedInInvestingActivitiesAbstract (terseLabel)	Abstract	duration		us-gaap:NetCashProvidedByUsedInInvestingActivitiesAbstract
19	us-gaap:PaymentsToAcquireProductiveAssets (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquireProductiveAssets
20	amzn:ProceedsFromRebatesOnPurchasesOfProductiveAssets (terseLabel)	Concept (Monetary)	duration	debit	amzn:ProceedsFromRebatesOnPurchasesOfProductiveAssets
21	us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
22	us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities
23	us-gaap:PaymentsToAcquireMarketableSecurities (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquireMarketableSecurities
24	us-gaap:NetCashProvidedByUsedInInvestingActivities (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:NetCashProvidedByUsedInInvestingActivities
25	us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract (terseLabel)	Abstract	duration		us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract
26	us-gaap:ProceedsFromIssuanceOfLongTermDebt (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProceedsFromIssuanceOfLongTermDebt
27	us-gaap:RepaymentsOfDebt (negatedTerseLabel)	Concept (Monetary)	duration	credit	us-gaap:RepaymentsOfDebt
28	us-gaap:RepaymentsOfLongTermCapitalLeaseObligations (negatedTerseLabel)	Concept (Monetary)	duration	credit	us-gaap:RepaymentsOfLongTermCapitalLeaseObligations
29	amzn:RepaymentsOfLongTermFinanceLeaseObligations (negatedLabel)	Concept (Monetary)	duration	credit	amzn:RepaymentsOfLongTermFinanceLeaseObligations
30	us-gaap:NetCashProvidedByUsedInFinancingActivities (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:NetCashProvidedByUsedInFinancingActivities
31	us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents
32	us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
33	CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD	Concept (Monetary)	instant	debit	us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
34	us-gaap:SupplementalCashFlowInformationAbstract (terseLabel)	Abstract	duration		us-gaap:SupplementalCashFlowInformationAbstract
35	amzn:InterestPaidOnLongTermDebt (terseLabel)	Concept (Monetary)	duration	credit	amzn:InterestPaidOnLongTermDebt
36	amzn:InterestPaidOnCapitalAndFinanceLeaseObligations (terseLabel)	Concept (Monetary)	duration	credit	amzn:InterestPaidOnCapitalAndFinanceLeaseObligations
37	us-gaap:IncomeTaxesPaidNet (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeTaxesPaidNet
38	us-gaap:CapitalLeaseObligationsIncurred (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:CapitalLeaseObligationsIncurred
39	amzn:BuildToSuitLeaseObligationsIncurred (terseLabel)	Concept (Monetary)	duration	credit	amzn:BuildToSuitLeaseObligationsIncurred

Model Structure
Network	1002000 - Statement - Consolidated Statements Of Operations (http://www.amazon.com/role/ConsolidatedStatementsOfOperations)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Statement [Abstract]	Abstract	duration		us-gaap:IncomeStatementAbstract
2	us-gaap:StatementTable (terseLabel)	Table	duration		us-gaap:StatementTable
3	srt:ProductOrServiceAxis (terseLabel)	Axis	duration		srt:ProductOrServiceAxis
4	srt:ProductsAndServicesDomain (terseLabel)	Member	duration		srt:ProductsAndServicesDomain
5	us-gaap:ProductMember (terseLabel)	Member	duration		us-gaap:ProductMember
6	us-gaap:ServiceMember (terseLabel)	Member	duration		us-gaap:ServiceMember
7	us-gaap:StatementLineItems (terseLabel)	LineItems	duration		us-gaap:StatementLineItems
8	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
9	us-gaap:CostsAndExpensesAbstract (terseLabel)	Abstract	duration		us-gaap:CostsAndExpensesAbstract
10	us-gaap:CostOfGoodsAndServicesSold (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:CostOfGoodsAndServicesSold
11	amzn:FulfillmentExpense (terseLabel)	Concept (Monetary)	duration	debit	amzn:FulfillmentExpense
12	us-gaap:MarketingExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:MarketingExpense
13	amzn:TechnologyAndContentExpense (terseLabel)	Concept (Monetary)	duration	debit	amzn:TechnologyAndContentExpense
14	us-gaap:GeneralAndAdministrativeExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:GeneralAndAdministrativeExpense
15	us-gaap:OtherCostAndExpenseOperating (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherCostAndExpenseOperating
16	Total operating expenses	Concept (Monetary)	duration	debit	us-gaap:CostsAndExpenses
17	Operating income (loss)	Concept (Monetary)	duration	credit	us-gaap:OperatingIncomeLoss
18	us-gaap:InvestmentIncomeInterest (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:InvestmentIncomeInterest
19	us-gaap:InterestExpense (negatedLabel)	Concept (Monetary)	duration	debit	us-gaap:InterestExpense
20	us-gaap:OtherNonoperatingIncomeExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherNonoperatingIncomeExpense
21	Total non-operating income (expense)	Concept (Monetary)	duration	credit	us-gaap:NonoperatingIncomeExpense
22	Income before income taxes	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
23	Provision for income taxes	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExpenseBenefit
24	us-gaap:IncomeLossFromEquityMethodInvestments (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromEquityMethodInvestments
25	Net income	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss
26	Basic earnings per share	Concept (Per-Share)	duration		us-gaap:EarningsPerShareBasic
27	Diluted earnings per share	Concept (Per-Share)	duration		us-gaap:EarningsPerShareDiluted
28	Weighted-average shares used in computation of earnings per share:	Abstract	duration		us-gaap:WeightedAverageNumberOfSharesOutstandingAbstract
29	us-gaap:WeightedAverageNumberOfSharesOutstandingBasic (terseLabel)	Concept (Shares)	duration		us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
30	us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding (terseLabel)	Concept (Shares)	duration		us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

Model Structure
Network	1002000 - Statement - Consolidated Statements of Comprehensive Income (http://www.amazon.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 (negatedLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
8	us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
9	us-gaap:OtherComprehensiveIncomeLossNetOfTax (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossNetOfTax
10	us-gaap:ComprehensiveIncomeNetOfTax (totalLabel)	Concept (Monetary)	duration	credit	us-gaap:ComprehensiveIncomeNetOfTax

Model Structure
Network	1002501 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical) (http://www.amazon.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:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
3	us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
4	us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax (negatedTerseLabel)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax

Model Structure
Network	1004000 - Statement - Consolidated Balance Sheets (http://www.amazon.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:InventoryNet (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:InventoryNet
7	us-gaap:AccountsReceivableNetCurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AccountsReceivableNetCurrent
8	us-gaap:AssetsCurrent (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:AssetsCurrent
9	us-gaap:PropertyPlantAndEquipmentNet (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:PropertyPlantAndEquipmentNet
10	Goodwill	Concept (Monetary)	instant	debit	us-gaap:Goodwill
11	us-gaap:OtherAssetsNoncurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OtherAssetsNoncurrent
12	Total assets	Concept (Monetary)	instant	debit	us-gaap:Assets
13	us-gaap:LiabilitiesAndStockholdersEquityAbstract (terseLabel)	Abstract	duration		us-gaap:LiabilitiesAndStockholdersEquityAbstract
14	us-gaap:LiabilitiesCurrentAbstract (terseLabel)	Abstract	duration		us-gaap:LiabilitiesCurrentAbstract
15	us-gaap:AccountsPayableCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AccountsPayableCurrent
16	amzn:AccruedLiabilitiesAndOtherCurrent (terseLabel)	Concept (Monetary)	instant	credit	amzn:AccruedLiabilitiesAndOtherCurrent
17	us-gaap:ContractWithCustomerLiabilityCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractWithCustomerLiabilityCurrent
18	us-gaap:LiabilitiesCurrent (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:LiabilitiesCurrent
19	us-gaap:LongTermDebtNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtNoncurrent
20	us-gaap:OtherLiabilitiesNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherLiabilitiesNoncurrent
21	us-gaap:CommitmentsAndContingencies (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CommitmentsAndContingencies
22	us-gaap:StockholdersEquityAbstract (terseLabel)	Abstract	duration		us-gaap:StockholdersEquityAbstract
23	us-gaap:PreferredStockValue (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:PreferredStockValue
24	us-gaap:CommonStockValue (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CommonStockValue
25	us-gaap:TreasuryStockValue (negatedLabel)	Concept (Monetary)	instant	debit	us-gaap:TreasuryStockValue
26	us-gaap:AdditionalPaidInCapital (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AdditionalPaidInCapital
27	us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
28	us-gaap:RetainedEarningsAccumulatedDeficit (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:RetainedEarningsAccumulatedDeficit
29	us-gaap:StockholdersEquity (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:StockholdersEquity
30	us-gaap:LiabilitiesAndStockholdersEquity (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:LiabilitiesAndStockholdersEquity

Model Structure
Network	1004501 - Statement - Consolidated Balance Sheets (Parenthetical) (http://www.amazon.com/role/ConsolidatedBalanceSheetsParenthetical)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Statement of Financial Position [Abstract]	Abstract	duration	us-gaap:StatementOfFinancialPositionAbstract
2	us-gaap:PreferredStockParOrStatedValuePerShare (terseLabel)	Concept (Per-Share)	instant	us-gaap:PreferredStockParOrStatedValuePerShare
3	us-gaap:PreferredStockSharesAuthorized (terseLabel)	Concept (Shares)	instant	us-gaap:PreferredStockSharesAuthorized
4	us-gaap:PreferredStockSharesIssued (terseLabel)	Concept (Shares)	instant	us-gaap:PreferredStockSharesIssued
5	us-gaap:PreferredStockSharesOutstanding (terseLabel)	Concept (Shares)	instant	us-gaap:PreferredStockSharesOutstanding
6	us-gaap:CommonStockParOrStatedValuePerShare (terseLabel)	Concept (Per-Share)	instant	us-gaap:CommonStockParOrStatedValuePerShare
7	us-gaap:CommonStockSharesAuthorized (terseLabel)	Concept (Shares)	instant	us-gaap:CommonStockSharesAuthorized
8	us-gaap:CommonStockSharesIssued (terseLabel)	Concept (Shares)	instant	us-gaap:CommonStockSharesIssued
9	us-gaap:CommonStockSharesOutstanding (terseLabel)	Concept (Shares)	instant	us-gaap:CommonStockSharesOutstanding

Model Structure
Network	1006000 - Statement - Consolidated Statements of Stockholders' Equity (http://www.amazon.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:CommonStockMember (terseLabel)	Member	duration		us-gaap:CommonStockMember
6	us-gaap:TreasuryStockMember (terseLabel)	Member	duration		us-gaap:TreasuryStockMember
7	us-gaap:AdditionalPaidInCapitalMember (terseLabel)	Member	duration		us-gaap:AdditionalPaidInCapitalMember
8	us-gaap:AccumulatedOtherComprehensiveIncomeMember (terseLabel)	Member	duration		us-gaap:AccumulatedOtherComprehensiveIncomeMember
9	us-gaap:RetainedEarningsMember (terseLabel)	Member	duration		us-gaap:RetainedEarningsMember
10	us-gaap:StatementLineItems (terseLabel)	LineItems	duration		us-gaap:StatementLineItems
11	us-gaap:IncreaseDecreaseInStockholdersEquityRollForward (terseLabel)	Abstract	duration		us-gaap:IncreaseDecreaseInStockholdersEquityRollForward
12	us-gaap:SharesOutstanding (periodStartLabel)	Concept (Shares)	instant		us-gaap:SharesOutstanding
13	Beginning Balance	Concept (Monetary)	instant	credit	us-gaap:StockholdersEquity
14	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
15	Net income	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss
16	Other comprehensive income (loss)	Concept (Monetary)	duration	credit	us-gaap:OtherComprehensiveIncomeLossNetOfTax
17	us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised (terseLabel)	Concept (Shares)	duration		us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
18	us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
19	us-gaap:AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
20	us-gaap:StockIssuedDuringPeriodValueEmployeeBenefitPlan (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:StockIssuedDuringPeriodValueEmployeeBenefitPlan
21	Ending Balance (in shares)	Concept (Shares)	instant		us-gaap:SharesOutstanding
22	Ending Balance	Concept (Monetary)	instant	credit	us-gaap:StockholdersEquity

Model Structure
Network	2101100 - Disclosure - Description of Business and Accounting Policies (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPolicies)
Table	(implied)

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

Model Structure
Network	2102100 - Disclosure - Cash, Cash Equivalents, and Marketable Securities (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecurities)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Investments, Debt and Equity Securities [Abstract]	Abstract	duration		us-gaap:InvestmentsDebtAndEquitySecuritiesAbstract
2	us-gaap:CashCashEquivalentsAndShortTermInvestmentsTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:CashCashEquivalentsAndShortTermInvestmentsTextBlock

Model Structure
Network	2103100 - Disclosure - Property and Equipment (http://www.amazon.com/role/PropertyAndEquipment)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Property, Plant and Equipment [Abstract]	Abstract	duration		us-gaap:PropertyPlantAndEquipmentAbstract
2	us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock

Model Structure
Network	2104100 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssets)
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	2105100 - Disclosure - Long-Term Debt (http://www.amazon.com/role/LongTermDebt)
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	2106100 - Disclosure - Other Long-Term Liabilities (http://www.amazon.com/role/OtherLongTermLiabilities)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Other Liabilities Disclosure [Abstract]	Abstract	duration		us-gaap:OtherLiabilitiesDisclosureAbstract
2	us-gaap:OtherLiabilitiesDisclosureTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:OtherLiabilitiesDisclosureTextBlock

Model Structure
Network	2107100 - Disclosure - Commitments and Contingencies (http://www.amazon.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	2108100 - Disclosure - Stockholders' Equity (http://www.amazon.com/role/StockholdersEquity)
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:ShareholdersEquityAndShareBasedPaymentsTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:ShareholdersEquityAndShareBasedPaymentsTextBlock

Model Structure
Network	2110100 - Disclosure - Income Taxes (http://www.amazon.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	2111100 - Disclosure - Segment Information (http://www.amazon.com/role/SegmentInformation)
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	2112100 - Disclosure - Quarterly Results (Unaudited) (http://www.amazon.com/role/QuarterlyResultsUnaudited)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Quarterly Financial Information Disclosure [Abstract]	Abstract	duration		us-gaap:QuarterlyFinancialInformationDisclosureAbstract
2	us-gaap:QuarterlyFinancialInformationTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:QuarterlyFinancialInformationTextBlock

Model Structure
Network	2201201 - Disclosure - Description of Business and Accounting Policies (Policies) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesPolicies)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Accounting Policies [Abstract]	Abstract	duration	us-gaap:AccountingPoliciesAbstract
2	us-gaap:SegmentReportingPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:SegmentReportingPolicyPolicyTextBlock
3	us-gaap:PriorPeriodReclassificationAdjustmentDescription (terseLabel)	Concept (TextBlock)	duration	us-gaap:PriorPeriodReclassificationAdjustmentDescription
4	us-gaap:ConsolidationPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ConsolidationPolicyTextBlock
5	us-gaap:UseOfEstimates (terseLabel)	Concept (TextBlock)	duration	us-gaap:UseOfEstimates
6	us-gaap:EarningsPerSharePolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:EarningsPerSharePolicyTextBlock
7	us-gaap:RevenueRecognitionPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:RevenueRecognitionPolicyTextBlock
8	amzn:FulfillmentExpensesPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:FulfillmentExpensesPolicyPolicyTextBlock
9	us-gaap:AdvertisingCostsPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:AdvertisingCostsPolicyTextBlock
10	amzn:TechnologyAndContentExpensesPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:TechnologyAndContentExpensesPolicyPolicyTextBlock
11	us-gaap:SellingGeneralAndAdministrativeExpensesPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:SellingGeneralAndAdministrativeExpensesPolicyTextBlock
12	us-gaap:CompensationRelatedCostsPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:CompensationRelatedCostsPolicyTextBlock
13	amzn:OtherOperatingIncomeAndExpensePolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:OtherOperatingIncomeAndExpensePolicyPolicyTextBlock
14	amzn:OtherNonoperatingIncomeAndExpensePolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:OtherNonoperatingIncomeAndExpensePolicyPolicyTextBlock
15	us-gaap:IncomeTaxPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:IncomeTaxPolicyTextBlock
16	us-gaap:FairValueOfFinancialInstrumentsPolicy (terseLabel)	Concept (TextBlock)	duration	us-gaap:FairValueOfFinancialInstrumentsPolicy
17	us-gaap:CashAndCashEquivalentsPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:CashAndCashEquivalentsPolicyTextBlock
18	us-gaap:InventoryPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:InventoryPolicyTextBlock
19	us-gaap:ReceivablesPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ReceivablesPolicyTextBlock
20	us-gaap:InternalUseSoftwarePolicy (terseLabel)	Concept (TextBlock)	duration	us-gaap:InternalUseSoftwarePolicy
21	us-gaap:PropertyPlantAndEquipmentPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:PropertyPlantAndEquipmentPolicyTextBlock
22	us-gaap:LesseeLeasesPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:LesseeLeasesPolicyTextBlock
23	us-gaap:AssetRetirementObligationsPolicy (terseLabel)	Concept (TextBlock)	duration	us-gaap:AssetRetirementObligationsPolicy
24	us-gaap:GoodwillAndIntangibleAssetsGoodwillPolicy (terseLabel)	Concept (TextBlock)	duration	us-gaap:GoodwillAndIntangibleAssetsGoodwillPolicy
25	amzn:OtherAssetsNoncurrentPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:OtherAssetsNoncurrentPolicyPolicyTextBlock
26	amzn:VideoAndMusicContentPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:VideoAndMusicContentPolicyPolicyTextBlock
27	us-gaap:InvestmentPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:InvestmentPolicyTextBlock
28	us-gaap:ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock
29	amzn:AccruedExpensesAndOtherPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:AccruedExpensesAndOtherPolicyPolicyTextBlock
30	amzn:RevenuefromContractwithCustomerContractLiabilityPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:RevenuefromContractwithCustomerContractLiabilityPolicyTextBlock
31	us-gaap:ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock
32	us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock

Model Structure
Network	2301302 - Disclosure - Description of Business and Accounting Policies (Tables) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesTables)
Table	(implied)

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

Model Structure
Network	2302301 - Disclosure - Cash, Cash Equivalents, and Marketable Securities (Tables) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Investments, Debt and Equity Securities [Abstract]	Abstract	duration	us-gaap:InvestmentsDebtAndEquitySecuritiesAbstract
2	us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock
3	us-gaap:RealizedGainLossOnInvestmentsTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:RealizedGainLossOnInvestmentsTableTextBlock
4	us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock

Model Structure
Network	2302302 - Disclosure - Cash, Cash Equivalents, and Marketable Securities Reconciliation to Cash Flow (Tables) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesReconciliationToCashFlowTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Cash and Cash Equivalents [Abstract]	Abstract	duration		us-gaap:CashAndCashEquivalentsAbstract
2	amzn:ReconciliationofcashcashequivalentsandrestrictedcashTableTextBlock (terseLabel)	Concept (TextBlock)	duration		amzn:ReconciliationofcashcashequivalentsandrestrictedcashTableTextBlock

Model Structure
Network	2303301 - Disclosure - Property and Equipment (Tables) (http://www.amazon.com/role/PropertyAndEquipmentTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Property, Plant and Equipment [Abstract]	Abstract	duration		us-gaap:PropertyPlantAndEquipmentAbstract
2	us-gaap:PropertyPlantAndEquipmentTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:PropertyPlantAndEquipmentTextBlock

Model Structure
Network	2304301 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets (Tables) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Business Combinations [Abstract]	Abstract	duration	us-gaap:BusinessCombinationsAbstract
2	us-gaap:ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock
3	us-gaap:ScheduleOfGoodwillTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfGoodwillTextBlock
4	us-gaap:ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock
5	us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock

Model Structure
Network	2305301 - Disclosure - Long-Term Debt (Tables) (http://www.amazon.com/role/LongTermDebtTables)
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	2306301 - Disclosure - Other Long-Term Liabilities (Tables) (http://www.amazon.com/role/OtherLongTermLiabilitiesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Other Liabilities Disclosure [Abstract]	Abstract	duration	us-gaap:OtherLiabilitiesDisclosureAbstract
2	us-gaap:OtherLiabilitiesTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:OtherLiabilitiesTableTextBlock
3	amzn:ScheduleOfCapitalLeaseObligationsTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:ScheduleOfCapitalLeaseObligationsTextBlock
4	amzn:ScheduleofFinanceLeaseObligationsTableTextBlock (terseLabel)	Concept (TextBlock)	duration	amzn:ScheduleofFinanceLeaseObligationsTableTextBlock

Model Structure
Network	2307301 - Disclosure - Commitments and Contingencies (Tables) (http://www.amazon.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:ContractualObligationFiscalYearMaturityScheduleTableTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:ContractualObligationFiscalYearMaturityScheduleTableTextBlock

Model Structure
Network	2308301 - Disclosure - Stockholders' Equity (Tables) (http://www.amazon.com/role/StockholdersEquityTables)
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:ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
3	us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock
4	us-gaap:ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockUnitsVestedAndExpectedToVestTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockUnitsVestedAndExpectedToVestTableTextBlock

Model Structure
Network	2310301 - Disclosure - Income Taxes (Tables) (http://www.amazon.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:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock
4	us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
5	us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
6	us-gaap:SummaryOfIncomeTaxContingenciesTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:SummaryOfIncomeTaxContingenciesTextBlock

Model Structure
Network	2311301 - Disclosure - Segment Information (Tables) (http://www.amazon.com/role/SegmentInformationTables)
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:DisaggregationOfRevenueTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:DisaggregationOfRevenueTableTextBlock
4	us-gaap:RevenueFromExternalCustomersByGeographicAreasTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:RevenueFromExternalCustomersByGeographicAreasTableTextBlock
5	us-gaap:ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock
6	us-gaap:LongLivedAssetsByGeographicAreasTableTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:LongLivedAssetsByGeographicAreasTableTextBlock
7	us-gaap:ReconciliationOfOtherSignificantReconcilingItemsFromSegmentsToConsolidatedTextBlock (terseLabel)	Concept (TextBlock)	duration	us-gaap:ReconciliationOfOtherSignificantReconcilingItemsFromSegmentsToConsolidatedTextBlock

Model Structure
Network	2312301 - Disclosure - Quarterly Results (Unaudited) (Tables) (http://www.amazon.com/role/QuarterlyResultsUnauditedTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Quarterly Financial Information Disclosure [Abstract]	Abstract	duration		us-gaap:QuarterlyFinancialInformationDisclosureAbstract
2	us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock (terseLabel)	Concept (TextBlock)	duration		us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock

Model Structure
Network	2401403 - Disclosure - Description of Business and Accounting Policies - Description of Business (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesDescriptionOfBusinessDetails)
Table	(implied)

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

Model Structure
Network	2401404 - Disclosure - Description of Business and Accounting Policies - Calculation of Diluted Shares (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesCalculationOfDilutedSharesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Accounting Policies [Abstract]	Abstract	duration	us-gaap:AccountingPoliciesAbstract
2	Shares used in computation of basic earnings per share	Concept (Shares)	duration	us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
3	us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements (terseLabel)	Concept (Shares)	duration	us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
4	Shares used in computation of diluted earnings per share	Concept (Shares)	duration	us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

Model Structure
Network	2401405 - Disclosure - Description of Business and Accounting Policies - Revenue (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesRevenueDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	us-gaap:ContractWithCustomerRefundLiability (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractWithCustomerRefundLiability
3	srt:ValuationAndQualifyingAccountsDisclosureTable (terseLabel)	Table	duration		srt:ValuationAndQualifyingAccountsDisclosureTable
4	us-gaap:ValuationAllowancesAndReservesTypeAxis (terseLabel)	Axis	duration		us-gaap:ValuationAllowancesAndReservesTypeAxis
5	us-gaap:ValuationAllowancesAndReservesDomain (terseLabel)	Member	duration		us-gaap:ValuationAllowancesAndReservesDomain
6	us-gaap:SalesReturnsAndAllowancesMember (terseLabel)	Member	duration		us-gaap:SalesReturnsAndAllowancesMember
7	srt:ValuationAndQualifyingAccountsDisclosureLineItems (terseLabel)	LineItems	duration		srt:ValuationAndQualifyingAccountsDisclosureLineItems
8	us-gaap:ValuationAllowancesAndReservesChargedToCostAndExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:ValuationAllowancesAndReservesChargedToCostAndExpense
9	us-gaap:ValuationAllowancesAndReservesDeductions (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ValuationAllowancesAndReservesDeductions
10	us-gaap:ContractWithCustomerRightToRecoverProduct (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:ContractWithCustomerRightToRecoverProduct

Model Structure
Network	2401406 - Disclosure - Description of Business and Accounting Policies - Marketing (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesMarketingDetails)
Table	(implied)

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

Model Structure
Network	2401407 - Disclosure - Description of Business and Accounting Policies - Technology and Content (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesTechnologyAndContentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Accounting Policies [Abstract]	Abstract	duration	us-gaap:AccountingPoliciesAbstract
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:PropertyPlantAndEquipmentLineItems (terseLabel)	LineItems	duration	us-gaap:PropertyPlantAndEquipmentLineItems
6	us-gaap:PropertyPlantAndEquipmentUsefulLife (terseLabel)	Concept (Duration)	duration	us-gaap:PropertyPlantAndEquipmentUsefulLife

Model Structure
Network	2401408 - Disclosure - Description of Business and Accounting Policies - Other Income (Expense), Net (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesOtherIncomeExpenseNetDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	us-gaap:ForeignCurrencyTransactionGainLossBeforeTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:ForeignCurrencyTransactionGainLossBeforeTax
3	us-gaap:DerivativeTable (terseLabel)	Table	duration		us-gaap:DerivativeTable
4	us-gaap:DerivativeInstrumentRiskAxis (terseLabel)	Axis	duration		us-gaap:DerivativeInstrumentRiskAxis
5	us-gaap:DerivativeContractTypeDomain (terseLabel)	Member	duration		us-gaap:DerivativeContractTypeDomain
6	us-gaap:WarrantMember (terseLabel)	Member	duration		us-gaap:WarrantMember
7	us-gaap:DerivativeLineItems (terseLabel)	LineItems	duration		us-gaap:DerivativeLineItems
8	us-gaap:DerivativeGainLossOnDerivativeNet (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:DerivativeGainLossOnDerivativeNet
9	us-gaap:EquitySecuritiesFvNiGainLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:EquitySecuritiesFvNiGainLoss

Model Structure
Network	2401409 - Disclosure - Description of Business and Accounting Policies - Fair Value of Financial Instruments (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesFairValueOfFinancialInstrumentsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	us-gaap:FairValueByBalanceSheetGroupingTable (terseLabel)	Table	duration		us-gaap:FairValueByBalanceSheetGroupingTable
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:DerivativeInstrumentRiskAxis (terseLabel)	Axis	duration		us-gaap:DerivativeInstrumentRiskAxis
7	us-gaap:DerivativeContractTypeDomain (terseLabel)	Member	duration		us-gaap:DerivativeContractTypeDomain
8	us-gaap:WarrantMember (terseLabel)	Member	duration		us-gaap:WarrantMember
9	us-gaap:FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems (terseLabel)	LineItems	duration		us-gaap:FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems
10	us-gaap:DerivativeAssets (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DerivativeAssets
11	us-gaap:DerivativeGainLossOnDerivativeNet (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:DerivativeGainLossOnDerivativeNet

Model Structure
Network	2401410 - Disclosure - Description of Business and Accounting Policies - Accounts Receivable, Net and Other (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesAccountsReceivableNetAndOtherDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTable (terseLabel)	Table	duration		us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTable
3	us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis (terseLabel)	Axis	duration		us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
4	us-gaap:ReceivableTypeDomain (terseLabel)	Member	duration		us-gaap:ReceivableTypeDomain
5	us-gaap:TradeAccountsReceivableMember (terseLabel)	Member	duration		us-gaap:TradeAccountsReceivableMember
6	amzn:VendorAccountsReceivableMember (terseLabel)	Member	duration		amzn:VendorAccountsReceivableMember
7	us-gaap:LoansReceivableMember (terseLabel)	Member	duration		us-gaap:LoansReceivableMember
8	us-gaap:AccountsNotesAndLoansReceivableLineItems (terseLabel)	LineItems	duration		us-gaap:AccountsNotesAndLoansReceivableLineItems
9	us-gaap:AccountsReceivableNetCurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AccountsReceivableNetCurrent
10	us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
11	us-gaap:ProvisionForDoubtfulAccounts (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ProvisionForDoubtfulAccounts
12	us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

Model Structure
Network	2401411 - Disclosure - Description of Business and Accounting Policies - Property and Equipment, Net (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesPropertyAndEquipmentNetDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Accounting Policies [Abstract]	Abstract	duration	us-gaap:AccountingPoliciesAbstract
2	us-gaap:ScheduleOfPropertyPlantAndEquipmentTable (terseLabel)	Table	duration	us-gaap:ScheduleOfPropertyPlantAndEquipmentTable
3	srt:RangeAxis (terseLabel)	Axis	duration	srt:RangeAxis
4	srt:RangeMember (terseLabel)	Member	duration	srt:RangeMember
5	Minimum	Member	duration	srt:MinimumMember
6	Maximum	Member	duration	srt:MaximumMember
7	us-gaap:PropertyPlantAndEquipmentByTypeAxis (terseLabel)	Axis	duration	us-gaap:PropertyPlantAndEquipmentByTypeAxis
8	us-gaap:PropertyPlantAndEquipmentTypeDomain (terseLabel)	Member	duration	us-gaap:PropertyPlantAndEquipmentTypeDomain
9	us-gaap:BuildingMember (terseLabel)	Member	duration	us-gaap:BuildingMember
10	us-gaap:TechnologyEquipmentMember (terseLabel)	Member	duration	us-gaap:TechnologyEquipmentMember
11	us-gaap:ComputerEquipmentMember (terseLabel)	Member	duration	us-gaap:ComputerEquipmentMember
12	us-gaap:MachineryAndEquipmentMember (terseLabel)	Member	duration	us-gaap:MachineryAndEquipmentMember
13	us-gaap:OtherMachineryAndEquipmentMember (terseLabel)	Member	duration	us-gaap:OtherMachineryAndEquipmentMember
14	us-gaap:PropertyPlantAndEquipmentLineItems (terseLabel)	LineItems	duration	us-gaap:PropertyPlantAndEquipmentLineItems
15	us-gaap:PropertyPlantAndEquipmentUsefulLife (terseLabel)	Concept (Duration)	duration	us-gaap:PropertyPlantAndEquipmentUsefulLife

Model Structure
Network	2401412 - Disclosure - Description of Business and Accounting Policies - Goodwill (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesGoodwillDetails)
Table	(implied)

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

Model Structure
Network	2401413 - Disclosure - Description of Business and Accounting Policies - Video and Music Content (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesVideoAndMusicContentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Accounting Policies [Abstract]	Abstract	duration	us-gaap:AccountingPoliciesAbstract
2	amzn:OtherAssetsTableTable (terseLabel)	Table	duration	amzn:OtherAssetsTableTable
3	srt:RangeAxis (terseLabel)	Axis	duration	srt:RangeAxis
4	srt:RangeMember (terseLabel)	Member	duration	srt:RangeMember
5	srt:MinimumMember (terseLabel)	Member	duration	srt:MinimumMember
6	srt:MaximumMember (terseLabel)	Member	duration	srt:MaximumMember
7	amzn:OtherAssetsAxis (terseLabel)	Axis	duration	amzn:OtherAssetsAxis
8	amzn:OtherAssetsDomain (terseLabel)	Member	duration	amzn:OtherAssetsDomain
9	amzn:DigitalVideoandMusicContentMember (terseLabel)	Member	duration	amzn:DigitalVideoandMusicContentMember
10	amzn:OtherAssetsLineItems (terseLabel)	LineItems	duration	amzn:OtherAssetsLineItems
11	amzn:OtherAssetAmortizationPeriod (terseLabel)	Concept (Duration)	duration	amzn:OtherAssetAmortizationPeriod

Model Structure
Network	2401414 - Disclosure - Description of Business and Accounting Policies - Accrued Expenses and Other (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesAccruedExpensesAndOtherDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	us-gaap:EmployeeRelatedLiabilitiesCurrentAndNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:EmployeeRelatedLiabilitiesCurrentAndNoncurrent
3	us-gaap:AccruedLiabilitiesForUnredeeemedGiftCards (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AccruedLiabilitiesForUnredeeemedGiftCards

Model Structure
Network	2401415 - Disclosure - Description of Business and Accounting Policies - Unearned Revenue (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesUnearnedRevenueDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	us-gaap:ContractWithCustomerLiability (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractWithCustomerLiability
3	us-gaap:ContractWithCustomerLiabilityRevenueRecognized (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:ContractWithCustomerLiabilityRevenueRecognized
4	us-gaap:ContractWithCustomerLiabilityNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractWithCustomerLiabilityNoncurrent
5	us-gaap:RevenueRemainingPerformanceObligation (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:RevenueRemainingPerformanceObligation
6	us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1 (terseLabel)	Concept (Duration)	instant		us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1

Model Structure
Network	2401416 - Disclosure - Description of Business and Accounting Policies - Foreign Currency (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesForeignCurrencyDetails)
Table	(implied)

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

Model Structure
Network	2401417 - Disclosure - Description of Business and Accounting Policies - Accounting Pronouncements Recently Adopted (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesAccountingPronouncementsRecentlyAdoptedDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	us-gaap:RevenueInitialApplicationPeriodCumulativeEffectTransitionAbstract (terseLabel)	Abstract	duration		us-gaap:RevenueInitialApplicationPeriodCumulativeEffectTransitionAbstract
3	us-gaap:RevenueInitialApplicationPeriodCumulativeEffectTransitionTable (terseLabel)	Table	duration		us-gaap:RevenueInitialApplicationPeriodCumulativeEffectTransitionTable
4	us-gaap:InitialApplicationPeriodCumulativeEffectTransitionAxis (terseLabel)	Axis	duration		us-gaap:InitialApplicationPeriodCumulativeEffectTransitionAxis
5	us-gaap:InitialApplicationPeriodCumulativeEffectTransitionDomain (terseLabel)	Member	duration		us-gaap:InitialApplicationPeriodCumulativeEffectTransitionDomain
6	us-gaap:DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member (terseLabel)	Member	duration		us-gaap:DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member
7	srt:ProductOrServiceAxis (terseLabel)	Axis	duration		srt:ProductOrServiceAxis
8	srt:ProductsAndServicesDomain (terseLabel)	Member	duration		srt:ProductsAndServicesDomain
9	amzn:ServiceSubscriptionMember (terseLabel)	Member	duration		amzn:ServiceSubscriptionMember
10	amzn:ProductSubscriptionMember (terseLabel)	Member	duration		amzn:ProductSubscriptionMember
11	us-gaap:ServiceOtherMember (terseLabel)	Member	duration		us-gaap:ServiceOtherMember
12	us-gaap:RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems (terseLabel)	LineItems	duration		us-gaap:RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems
13	us-gaap:Revenues (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:Revenues
14	us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract (terseLabel)	Abstract	duration		us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract
15	us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleTable (terseLabel)	Table	duration		us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleTable
16	srt:RestatementAxis (terseLabel)	Axis	duration		srt:RestatementAxis
17	srt:RestatementDomain (terseLabel)	Member	duration		srt:RestatementDomain
18	srt:ScenarioPreviouslyReportedMember (terseLabel)	Member	duration		srt:ScenarioPreviouslyReportedMember
19	srt:RestatementAdjustmentMember (terseLabel)	Member	duration		srt:RestatementAdjustmentMember
20	us-gaap:AdjustmentsForNewAccountingPronouncementsAxis (terseLabel)	Axis	duration		us-gaap:AdjustmentsForNewAccountingPronouncementsAxis
21	us-gaap:TypeOfAdoptionMember (terseLabel)	Member	duration		us-gaap:TypeOfAdoptionMember
22	us-gaap:AccountingStandardsUpdate201409Member (terseLabel)	Member	duration		us-gaap:AccountingStandardsUpdate201409Member
23	us-gaap:AccountingStandardsUpdate201616Member (terseLabel)	Member	duration		us-gaap:AccountingStandardsUpdate201616Member
24	us-gaap:AccountingStandardsUpdate201618Member (terseLabel)	Member	duration		us-gaap:AccountingStandardsUpdate201618Member
25	us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems (terseLabel)	LineItems	duration		us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
26	us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1 (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1
27	Net cash provided by (used in) operating activities	Concept (Monetary)	duration		us-gaap:NetCashProvidedByUsedInOperatingActivities
28	Net Cash Provided by (Used in) Investing Activities	Concept (Monetary)	duration	debit	us-gaap:NetCashProvidedByUsedInInvestingActivities
29	Net cash provided by (used in) financing activities	Concept (Monetary)	duration	debit	us-gaap:NetCashProvidedByUsedInFinancingActivities
30	amzn:Netchangeincashcashequivalentsandrestrictedcash (totalLabel)	Concept (Monetary)	duration	debit	amzn:Netchangeincashcashequivalentsandrestrictedcash

Model Structure
Network	2401418 - Disclosure - Description of Business and Accounting Policies - Accounting Pronouncements Not Yet Adopted (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesAccountingPronouncementsNotYetAdoptedDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Accounting Policies [Abstract]	Abstract	duration		us-gaap:AccountingPoliciesAbstract
2	us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleTable (terseLabel)	Table	duration		us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleTable
3	us-gaap:AdjustmentsForNewAccountingPronouncementsAxis (terseLabel)	Axis	duration		us-gaap:AdjustmentsForNewAccountingPronouncementsAxis
4	us-gaap:TypeOfAdoptionMember (terseLabel)	Member	duration		us-gaap:TypeOfAdoptionMember
5	us-gaap:AccountingStandardsUpdate201602Member (terseLabel)	Member	duration		us-gaap:AccountingStandardsUpdate201602Member
6	us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems (terseLabel)	LineItems	duration		us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
7	New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	Concept (Monetary)	instant	credit	us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1
8	us-gaap:OperatingLeaseRightOfUseAsset (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLeaseRightOfUseAsset
9	Finance Lease Reclassification	Concept (Monetary)	instant	debit	amzn:FinanceLeasedAssetsGross
10	us-gaap:OperatingLeaseLiability (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeaseLiability
11	amzn:Buildtosuitassets (terseLabel)	Concept (Monetary)	instant	debit	amzn:Buildtosuitassets
12	amzn:Buildtosuitliabilities (terseLabel)	Concept (Monetary)	instant	credit	amzn:Buildtosuitliabilities

Model Structure
Network	2402403 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Fair Values on Recurring Basis (Details) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesFairValuesOnRecurringBasisDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Investments, Debt and Equity Securities [Abstract]	Abstract	duration		us-gaap:InvestmentsDebtAndEquitySecuritiesAbstract
2	us-gaap:ScheduleOfInvestmentsTable (terseLabel)	Table	duration		us-gaap:ScheduleOfInvestmentsTable
3	us-gaap:FairValueByMeasurementFrequencyAxis (terseLabel)	Axis	duration		us-gaap:FairValueByMeasurementFrequencyAxis
4	us-gaap:FairValueMeasurementFrequencyDomain (terseLabel)	Member	duration		us-gaap:FairValueMeasurementFrequencyDomain
5	us-gaap:FairValueMeasurementsRecurringMember (terseLabel)	Member	duration		us-gaap:FairValueMeasurementsRecurringMember
6	us-gaap:FairValueByFairValueHierarchyLevelAxis (terseLabel)	Axis	duration		us-gaap:FairValueByFairValueHierarchyLevelAxis
7	us-gaap:FairValueMeasurementsFairValueHierarchyDomain (terseLabel)	Member	duration		us-gaap:FairValueMeasurementsFairValueHierarchyDomain
8	us-gaap:FairValueInputsLevel1Member (terseLabel)	Member	duration		us-gaap:FairValueInputsLevel1Member
9	Level 2 securities	Member	duration		us-gaap:FairValueInputsLevel2Member
10	us-gaap:CashAndCashEquivalentsAxis (terseLabel)	Axis	duration		us-gaap:CashAndCashEquivalentsAxis
11	us-gaap:RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember (terseLabel)	Member	duration		us-gaap:RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember
12	us-gaap:MoneyMarketFundsMember (terseLabel)	Member	duration		us-gaap:MoneyMarketFundsMember
13	us-gaap:FinancialInstrumentAxis (terseLabel)	Axis	duration		us-gaap:FinancialInstrumentAxis
14	us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain (terseLabel)	Member	duration		us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain
15	us-gaap:ForeignGovernmentDebtSecuritiesMember (terseLabel)	Member	duration		us-gaap:ForeignGovernmentDebtSecuritiesMember
16	us-gaap:USTreasuryAndGovernmentMember (terseLabel)	Member	duration		us-gaap:USTreasuryAndGovernmentMember
17	us-gaap:CorporateDebtSecuritiesMember (terseLabel)	Member	duration		us-gaap:CorporateDebtSecuritiesMember
18	us-gaap:AssetBackedSecuritiesMember (terseLabel)	Member	duration		us-gaap:AssetBackedSecuritiesMember
19	us-gaap:FixedIncomeSecuritiesMember (terseLabel)	Member	duration		us-gaap:FixedIncomeSecuritiesMember
20	us-gaap:ScheduleOfInvestmentsLineItems (terseLabel)	LineItems	duration		us-gaap:ScheduleOfInvestmentsLineItems
21	us-gaap:Cash (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:Cash
22	us-gaap:CashEquivalentsAtCarryingValue (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:CashEquivalentsAtCarryingValue
23	amzn:CashCashEquivalentsAndDebtAvailableForSaleSecuritiesAmortizedCostBasisAbstract (terseLabel)	Abstract	duration		amzn:CashCashEquivalentsAndDebtAvailableForSaleSecuritiesAmortizedCostBasisAbstract
24	us-gaap:EquitySecuritiesFvNiCost (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:EquitySecuritiesFvNiCost
25	us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
26	amzn:CashCashEquivalentsAndShortTermInvestmentsAmortizedCostBasis (totalLabel)	Concept (Monetary)	instant	debit	amzn:CashCashEquivalentsAndShortTermInvestmentsAmortizedCostBasis
27	amzn:GrossUnrealizedGainsAbstract (terseLabel)	Abstract	duration		amzn:GrossUnrealizedGainsAbstract
28	us-gaap:EquitySecuritiesFvNiUnrealizedGain (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:EquitySecuritiesFvNiUnrealizedGain
29	us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
30	amzn:EquitySecuritiesFVNIandDebtSecuritiesAvailableforsaleAccumulatedGrossUnrealizedGainbeforetax (totalLabel)	Concept (Monetary)	instant	credit	amzn:EquitySecuritiesFVNIandDebtSecuritiesAvailableforsaleAccumulatedGrossUnrealizedGainbeforetax
31	amzn:GrossUnrealizedLossesAbstract (terseLabel)	Abstract	duration		amzn:GrossUnrealizedLossesAbstract
32	us-gaap:EquitySecuritiesFvNiUnrealizedLoss (negatedLabel)	Concept (Monetary)	duration	debit	us-gaap:EquitySecuritiesFvNiUnrealizedLoss
33	us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax (negatedTerseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
34	us-gaap:CashCashEquivalentsAndShortTermInvestmentsAbstract (terseLabel)	Abstract	duration		us-gaap:CashCashEquivalentsAndShortTermInvestmentsAbstract
35	us-gaap:EquitySecuritiesFvNi (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:EquitySecuritiesFvNi
36	us-gaap:AvailableForSaleSecuritiesDebtSecurities (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtSecurities
37	amzn:CashCashEquivalentsAndShortTermInvestmentsCurrentAndNoncurrent (totalLabel)	Concept (Monetary)	instant	debit	amzn:CashCashEquivalentsAndShortTermInvestmentsCurrentAndNoncurrent
38	us-gaap:RestrictedCashAndInvestments (negatedTerseLabel)	Concept (Monetary)	instant	debit	us-gaap:RestrictedCashAndInvestments
39	amzn:CashCashEquivalentsAndShortTermInvestmentsExcludingRestrictedCashAndInvestments (terseLabel)	Concept (Monetary)	instant	debit	amzn:CashCashEquivalentsAndShortTermInvestmentsExcludingRestrictedCashAndInvestments

Model Structure
Network	2402404 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Gross Gains and Gross Losses Realized on Sales of Available-For-Sale Marketable Securities (Details) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesGrossGainsAndGrossLossesRealizedOnSalesOfAvailableForSaleMarketableSecuritiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Debt Securities, Available-for-sale, Realized Gain (Loss) [Abstract]	Abstract	duration		us-gaap:AvailableForSaleSecuritiesGrossRealizedGainLossAbstract
2	us-gaap:DebtSecuritiesAvailableForSaleRealizedGain (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:DebtSecuritiesAvailableForSaleRealizedGain
3	us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

Model Structure
Network	2402405 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Contractual Maturities (Details) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesContractualMaturitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Available-for-sale Securities, Debt Maturities [Abstract]	Abstract	duration		us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAbstract
2	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasisAbstract (terseLabel)	Abstract	duration		us-gaap:AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasisAbstract
3	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
4	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
5	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
6	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost
7	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
8	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract (terseLabel)	Abstract	duration		us-gaap:AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract
9	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
10	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
11	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
12	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
13	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate

Model Structure
Network	2402406 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Reconciliation to Cash Flow (Details) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesReconciliationToCashFlowDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	amzn:ReconciliationtoCashFlowAbstract (label)	Abstract	duration		amzn:ReconciliationtoCashFlowAbstract
2	us-gaap:CashAndCashEquivalentsAtCarryingValue (verboseLabel)	Concept (Monetary)	instant	debit	us-gaap:CashAndCashEquivalentsAtCarryingValue
3	us-gaap:RestrictedCashCurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:RestrictedCashCurrent
4	us-gaap:RestrictedCashNoncurrent (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:RestrictedCashNoncurrent
5	Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows	Concept (Monetary)	instant	debit	us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

Model Structure
Network	2403402 - Disclosure - Property and Equipment - Components (Details) (http://www.amazon.com/role/PropertyAndEquipmentComponentsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Property, Plant and Equipment [Abstract]	Abstract	duration		us-gaap:PropertyPlantAndEquipmentAbstract
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:EquipmentMember (verboseLabel)	Member	duration		us-gaap:EquipmentMember
7	us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember (terseLabel)	Member	duration		us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember
8	us-gaap:ConstructionInProgressMember (terseLabel)	Member	duration		us-gaap:ConstructionInProgressMember
9	us-gaap:PropertyPlantAndEquipmentLineItems (terseLabel)	LineItems	duration		us-gaap:PropertyPlantAndEquipmentLineItems
10	us-gaap:PropertyPlantAndEquipmentGross (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:PropertyPlantAndEquipmentGross
11	us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
12	Total property and equipment, net	Concept (Monetary)	instant	debit	us-gaap:PropertyPlantAndEquipmentNet

Model Structure
Network	2403403 - Disclosure - Property and Equipment - Additional Information (Details) (http://www.amazon.com/role/PropertyAndEquipmentAdditionalInformationDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Property, Plant and Equipment [Abstract]	Abstract	duration		us-gaap:PropertyPlantAndEquipmentAbstract
2	us-gaap:Depreciation (verboseLabel)	Concept (Monetary)	duration	debit	us-gaap:Depreciation
3	us-gaap:CapitalLeasesIncomeStatementAmortizationExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:CapitalLeasesIncomeStatementAmortizationExpense
4	us-gaap:CapitalLeasedAssetsGross (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:CapitalLeasedAssetsGross
5	us-gaap:CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
6	amzn:FinanceLeasedAssetsGross (terseLabel)	Concept (Monetary)	instant	debit	amzn:FinanceLeasedAssetsGross
7	amzn:FinanceLeasesLesseeBalanceSheetAssetsbyMajorClassAccumulatedDepreciation (terseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesLesseeBalanceSheetAssetsbyMajorClassAccumulatedDepreciation

Model Structure
Network	2404402 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Additional Information (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsAdditionalInformationDetails)
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	us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember (verboseLabel)	Member	duration		us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember
6	amzn:SouqGroupLtdMember (terseLabel)	Member	duration		amzn:SouqGroupLtdMember
7	Whole Foods Market	Member	duration		amzn:WholeFoodsMarketInc.Member
8	amzn:RingIncMember (terseLabel)	Member	duration		amzn:RingIncMember
9	amzn:PillPackInc.Member (terseLabel)	Member	duration		amzn:PillPackInc.Member
10	us-gaap:BusinessAcquisitionLineItems (terseLabel)	LineItems	duration		us-gaap:BusinessAcquisitionLineItems
11	us-gaap:BusinessCombinationConsiderationTransferred1 (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:BusinessCombinationConsiderationTransferred1
12	Acquisitions, net of cash acquired	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

Model Structure
Network	2404403 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Allocation of Aggregate Purchase Price of Acquisitions (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsAllocationOfAggregatePurchasePriceOfAcquisitionsDetails)
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	amzn:TwoThousandSixteenAcquisitionsMember (terseLabel)	Member	duration		amzn:TwoThousandSixteenAcquisitionsMember
6	amzn:TwoThousandSeventeenAcquisitionsMember (terseLabel)	Member	duration		amzn:TwoThousandSeventeenAcquisitionsMember
7	amzn:TwoThousandEighteenAcquisitionsMember (terseLabel)	Member	duration		amzn:TwoThousandEighteenAcquisitionsMember
8	us-gaap:FiniteLivedIntangibleAssetsByMajorClassAxis (terseLabel)	Axis	duration		us-gaap:FiniteLivedIntangibleAssetsByMajorClassAxis
9	us-gaap:FiniteLivedIntangibleAssetsMajorClassNameDomain (terseLabel)	Member	duration		us-gaap:FiniteLivedIntangibleAssetsMajorClassNameDomain
10	us-gaap:MarketingRelatedIntangibleAssetsMember (terseLabel)	Member	duration		us-gaap:MarketingRelatedIntangibleAssetsMember
11	us-gaap:ContractBasedIntangibleAssetsMember (terseLabel)	Member	duration		us-gaap:ContractBasedIntangibleAssetsMember
12	Technology-based	Member	duration		us-gaap:TechnologyBasedIntangibleAssetsMember
13	us-gaap:CustomerRelatedIntangibleAssetsMember (terseLabel)	Member	duration		us-gaap:CustomerRelatedIntangibleAssetsMember
14	srt:RangeAxis (terseLabel)	Axis	duration		srt:RangeAxis
15	srt:RangeMember (terseLabel)	Member	duration		srt:RangeMember
16	srt:MinimumMember (terseLabel)	Member	duration		srt:MinimumMember
17	srt:MaximumMember (terseLabel)	Member	duration		srt:MaximumMember
18	us-gaap:BusinessAcquisitionLineItems (terseLabel)	LineItems	duration		us-gaap:BusinessAcquisitionLineItems
19	us-gaap:BusinessCombinationConsiderationTransferredAbstract (terseLabel)	Abstract	duration		us-gaap:BusinessCombinationConsiderationTransferredAbstract
20	Cash paid, net of cash acquired	Concept (Monetary)	duration	credit	us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
21	us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred
22	Aggregate purchase price	Concept (Monetary)	duration	credit	us-gaap:BusinessCombinationConsiderationTransferred1
23	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNetAbstract (terseLabel)	Abstract	duration		us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNetAbstract
24	Goodwill	Concept (Monetary)	instant	debit	us-gaap:Goodwill
25	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
26	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
27	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets
28	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets (terseLabel)	Concept (Monetary)	instant	debit	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets
29	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
30	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities
31	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesOther (negatedTerseLabel)	Concept (Monetary)	instant	credit	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesOther
32	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
33	us-gaap:FiniteLivedIntangibleAssetUsefulLife (verboseLabel)	Concept (Duration)	duration		us-gaap:FiniteLivedIntangibleAssetUsefulLife
34	Acquired intangibles weighted average amortization period	Concept (Duration)	duration		us-gaap:AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife

Model Structure
Network	2404404 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Summary of Goodwill Activity by Segment (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsSummaryOfGoodwillActivityBySegmentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Business Combinations [Abstract]	Abstract	duration		us-gaap:BusinessCombinationsAbstract
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	amzn:NorthAmericaSegmentMember (terseLabel)	Member	duration		amzn:NorthAmericaSegmentMember
6	amzn:InternationalSegmentMember (terseLabel)	Member	duration		amzn:InternationalSegmentMember
7	amzn:AmazonWebServicesSegmentMember (terseLabel)	Member	duration		amzn:AmazonWebServicesSegmentMember
8	us-gaap:GoodwillLineItems (terseLabel)	LineItems	duration		us-gaap:GoodwillLineItems
9	us-gaap:GoodwillRollForward (terseLabel)	Abstract	duration		us-gaap:GoodwillRollForward
10	us-gaap:Goodwill (periodStartLabel)	Concept (Monetary)	instant	debit	us-gaap:Goodwill
11	us-gaap:GoodwillAcquiredDuringPeriod (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:GoodwillAcquiredDuringPeriod
12	us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments
13	Goodwill, balance at end of period	Concept (Monetary)	instant	debit	us-gaap:Goodwill

Model Structure
Network	2404405 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Acquired Intangible Assets (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsAcquiredIntangibleAssetsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Business Combinations [Abstract]	Abstract	duration		us-gaap:BusinessCombinationsAbstract
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	us-gaap:MarketingRelatedIntangibleAssetsMember (terseLabel)	Member	duration		us-gaap:MarketingRelatedIntangibleAssetsMember
6	us-gaap:ContractBasedIntangibleAssetsMember (terseLabel)	Member	duration		us-gaap:ContractBasedIntangibleAssetsMember
7	us-gaap:TechnologyBasedIntangibleAssetsMember (verboseLabel)	Member	duration		us-gaap:TechnologyBasedIntangibleAssetsMember
8	us-gaap:CustomerRelatedIntangibleAssetsMember (terseLabel)	Member	duration		us-gaap:CustomerRelatedIntangibleAssetsMember
9	srt:RangeAxis (terseLabel)	Axis	duration		srt:RangeAxis
10	srt:RangeMember (terseLabel)	Member	duration		srt:RangeMember
11	srt:MinimumMember (terseLabel)	Member	duration		srt:MinimumMember
12	srt:MaximumMember (terseLabel)	Member	duration		srt:MaximumMember
13	us-gaap:AcquiredFiniteLivedIntangibleAssetsLineItems (terseLabel)	LineItems	duration		us-gaap:AcquiredFiniteLivedIntangibleAssetsLineItems
14	us-gaap:IntangibleAssetsGrossExcludingGoodwill (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:IntangibleAssetsGrossExcludingGoodwill
15	us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
16	us-gaap:IntangibleAssetsNetExcludingGoodwill (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:IntangibleAssetsNetExcludingGoodwill
17	us-gaap:AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife (verboseLabel)	Concept (Duration)	duration		us-gaap:AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
18	us-gaap:FiniteLivedIntangibleAssetUsefulLife (verboseLabel)	Concept (Duration)	duration		us-gaap:FiniteLivedIntangibleAssetUsefulLife
19	us-gaap:AmortizationOfIntangibleAssets (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:AmortizationOfIntangibleAssets

Model Structure
Network	2404406 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Expected Future Amortization Expense of Acquired Intangible Assets (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsExpectedFutureAmortizationExpenseOfAcquiredIntangibleAssetsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Business Combinations [Abstract]	Abstract	duration		us-gaap:BusinessCombinationsAbstract
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	2405402 - Disclosure - Long-Term Debt - Additional Information (Details) (http://www.amazon.com/role/LongTermDebtAdditionalInformationDetails)
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:LongtermDebtTypeAxis (terseLabel)	Axis	duration		us-gaap:LongtermDebtTypeAxis
4	us-gaap:LongtermDebtTypeDomain (terseLabel)	Member	duration		us-gaap:LongtermDebtTypeDomain
5	us-gaap:SeniorNotesMember (terseLabel)	Member	duration		us-gaap:SeniorNotesMember
6	amzn:LineOfCreditAndOtherLongTermDebtMember (terseLabel)	Member	duration		amzn:LineOfCreditAndOtherLongTermDebtMember
7	us-gaap:LineOfCreditMember (terseLabel)	Member	duration		us-gaap:LineOfCreditMember
8	Other Long-term Debt	Member	duration		amzn:OtherLongTermDebtMember
9	amzn:Amazon.comInc.Member (terseLabel)	Member	duration		amzn:Amazon.comInc.Member
10	amzn:WholeFoodsMarketInc.Member (terseLabel)	Member	duration		amzn:WholeFoodsMarketInc.Member
11	us-gaap:DebtInstrumentAxis (terseLabel)	Axis	duration		us-gaap:DebtInstrumentAxis
12	us-gaap:DebtInstrumentNameDomain (terseLabel)	Member	duration		us-gaap:DebtInstrumentNameDomain
13	us-gaap:CommercialPaperMember (terseLabel)	Member	duration		us-gaap:CommercialPaperMember
14	amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember
15	amzn:October2016RevolvingCreditFacilityMember (terseLabel)	Member	duration		amzn:October2016RevolvingCreditFacilityMember
16	amzn:UnsecuredRevolvingCreditFacilityMember (terseLabel)	Member	duration		amzn:UnsecuredRevolvingCreditFacilityMember
17	us-gaap:CreditFacilityAxis (terseLabel)	Axis	duration		us-gaap:CreditFacilityAxis
18	us-gaap:CreditFacilityDomain (terseLabel)	Member	duration		us-gaap:CreditFacilityDomain
19	us-gaap:RevolvingCreditFacilityMember (terseLabel)	Member	duration		us-gaap:RevolvingCreditFacilityMember
20	us-gaap:VariableRateAxis (terseLabel)	Axis	duration		us-gaap:VariableRateAxis
21	us-gaap:VariableRateDomain (terseLabel)	Member	duration		us-gaap:VariableRateDomain
22	us-gaap:LondonInterbankOfferedRateLIBORMember (terseLabel)	Member	duration		us-gaap:LondonInterbankOfferedRateLIBORMember
23	us-gaap:DebtInstrumentLineItems (terseLabel)	LineItems	duration		us-gaap:DebtInstrumentLineItems
24	Borrowings outstanding	Concept (Monetary)	instant	credit	us-gaap:LongTermDebt
25	us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
26	us-gaap:LongTermDebtFairValue (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtFairValue
27	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
28	us-gaap:DebtInstrumentTerm (terseLabel)	Concept (Duration)	duration		us-gaap:DebtInstrumentTerm
29	us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 (terseLabel)	Concept (Percent)	duration		us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
30	us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage (terseLabel)	Concept (Percent)	duration		us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
31	us-gaap:LineOfCredit (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LineOfCredit
32	us-gaap:LongtermDebtWeightedAverageInterestRate (terseLabel)	Concept (Percent)	instant		us-gaap:LongtermDebtWeightedAverageInterestRate
33	us-gaap:DebtInstrumentCollateralAmount (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DebtInstrumentCollateralAmount
34	amzn:CommercialPaperMaximumBorrowingCapacity (terseLabel)	Concept (Monetary)	instant	credit	amzn:CommercialPaperMaximumBorrowingCapacity
35	us-gaap:CommercialPaper (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CommercialPaper
36	amzn:LineOfCreditFacilityNumberOfExtensions (terseLabel)	Concept (Integer)	duration		amzn:LineOfCreditFacilityNumberOfExtensions
37	amzn:LineOfCreditFacilityAdditionalTerm (terseLabel)	Concept (Duration)	duration		amzn:LineOfCreditFacilityAdditionalTerm

Model Structure
Network	2405403 - Disclosure - Long-Term Debt - Long-Term Debt Obligations (Details) (http://www.amazon.com/role/LongTermDebtLongTermDebtObligationsDetails)
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:LongtermDebtTypeAxis (terseLabel)	Axis	duration		us-gaap:LongtermDebtTypeAxis
4	us-gaap:LongtermDebtTypeDomain (terseLabel)	Member	duration		us-gaap:LongtermDebtTypeDomain
5	us-gaap:SeniorNotesMember (terseLabel)	Member	duration		us-gaap:SeniorNotesMember
6	us-gaap:LineOfCreditMember (terseLabel)	Member	duration		us-gaap:LineOfCreditMember
7	amzn:OtherLongTermDebtMember (terseLabel)	Member	duration		amzn:OtherLongTermDebtMember
8	amzn:Amazon.comInc.Member (terseLabel)	Member	duration		amzn:Amazon.comInc.Member
9	amzn:WholeFoodsMarketInc.Member (terseLabel)	Member	duration		amzn:WholeFoodsMarketInc.Member
10	us-gaap:DebtInstrumentAxis (terseLabel)	Axis	duration		us-gaap:DebtInstrumentAxis
11	us-gaap:DebtInstrumentNameDomain (terseLabel)	Member	duration		us-gaap:DebtInstrumentNameDomain
12	amzn:SeniorUnsecuredNotesTwoPointSixPercentDueDecemberFifthTwoThousandNineteenMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesTwoPointSixPercentDueDecemberFifthTwoThousandNineteenMember
13	amzn:SeniorUnsecuredNotesOnePointNinePercentDueAugustTwentyFirstTwoThousandTwentyMemberMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesOnePointNinePercentDueAugustTwentyFirstTwoThousandTwentyMemberMember
14	amzn:SeniorUnsecuredNotesThreePointThreePercentDueDecemberFifthTwoThousandTwentyOneMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesThreePointThreePercentDueDecemberFifthTwoThousandTwentyOneMember
15	amzn:SeniorUnsecuredNotesTwoPointFivePercentDueNovemberTwentyNineTwoThousandTwentyTwoMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesTwoPointFivePercentDueNovemberTwentyNineTwoThousandTwentyTwoMember
16	amzn:SeniorUnsecuredNotesTwoPointFourPercentDueFebruaryTwentySecondTwoThousandTwentyThreeMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesTwoPointFourPercentDueFebruaryTwentySecondTwoThousandTwentyThreeMember
17	amzn:SeniorUnsecuredNotesTwoPointEightPercentDueAugustTwentySecondTwoThousandTwentyFourMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesTwoPointEightPercentDueAugustTwentySecondTwoThousandTwentyFourMember
18	amzn:SeniorUnsecuredNotesThreePointEightPercentDueDecemberFifthTwoThousandTwentyFourMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesThreePointEightPercentDueDecemberFifthTwoThousandTwentyFourMember
19	amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember
20	amzn:SeniorUnsecuredNotesThreePointOneFivePercentDueAugustTwentySecondTwoThousandTwentySevenMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesThreePointOneFivePercentDueAugustTwentySecondTwoThousandTwentySevenMember
21	amzn:SeniorUnsecuredNotesFourPointEightPercentDueDecemberFifthTwoThousandThirtyFourMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesFourPointEightPercentDueDecemberFifthTwoThousandThirtyFourMember
22	amzn:SeniorUnsecuredNotesThreePointEightSevenFivePercentDueAugustTwentySecondTwoThousandThirtySevenMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesThreePointEightSevenFivePercentDueAugustTwentySecondTwoThousandThirtySevenMember
23	amzn:SeniorUnsecuredNotesFourPointNineFivePercentDueDecemberTwentyNineTwoThousandFortyFourMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesFourPointNineFivePercentDueDecemberTwentyNineTwoThousandFortyFourMember
24	amzn:SeniorUnsecuredNotesFourPointZeroFivePercentDueAugustTwentySecondTwoThousandFortySevenMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesFourPointZeroFivePercentDueAugustTwentySecondTwoThousandFortySevenMember
25	amzn:SeniorUnsecuredNotesFourPointTwoFivePercentDueAugustTwentySecondTwoThousandFiftySevenMember (terseLabel)	Member	duration		amzn:SeniorUnsecuredNotesFourPointTwoFivePercentDueAugustTwentySecondTwoThousandFiftySevenMember
26	us-gaap:CreditFacilityAxis (terseLabel)	Axis	duration		us-gaap:CreditFacilityAxis
27	us-gaap:CreditFacilityDomain (terseLabel)	Member	duration		us-gaap:CreditFacilityDomain
28	us-gaap:RevolvingCreditFacilityMember (terseLabel)	Member	duration		us-gaap:RevolvingCreditFacilityMember
29	us-gaap:DebtInstrumentLineItems (terseLabel)	LineItems	duration		us-gaap:DebtInstrumentLineItems
30	us-gaap:DebtInstrumentInterestRateStatedPercentage (terseLabel)	Concept (Percent)	instant		us-gaap:DebtInstrumentInterestRateStatedPercentage
31	us-gaap:LongTermDebt (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebt
32	us-gaap:LongTermDebtCurrent (negatedLabel)	Concept (Monetary)	instant	credit	us-gaap:LongTermDebtCurrent
33	us-gaap:DebtInstrumentCarryingAmount (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:DebtInstrumentCarryingAmount
34	us-gaap:DebtInstrumentInterestRateEffectivePercentage (terseLabel)	Concept (Percent)	instant		us-gaap:DebtInstrumentInterestRateEffectivePercentage

Model Structure
Network	2405404 - Disclosure - Long-Term Debt - Future Principal Payment for Debt (Details) (http://www.amazon.com/role/LongTermDebtFuturePrincipalPaymentForDebtDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Debt Disclosure [Abstract]	Abstract	duration		us-gaap:DebtDisclosureAbstract
2	us-gaap:LongTermDebtByMaturityAbstract (verboseLabel)	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	2406402 - Disclosure - Other Long-Term Liabilities - Other Long Term Liabilities Summary (Details) (http://www.amazon.com/role/OtherLongTermLiabilitiesOtherLongTermLiabilitiesSummaryDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Other Liabilities Disclosure [Abstract]	Abstract	duration		us-gaap:OtherLiabilitiesDisclosureAbstract
2	Long-term capital lease obligations	Concept (Monetary)	instant	credit	us-gaap:CapitalLeaseObligationsNoncurrent
3	Long-term finance lease obligations	Concept (Monetary)	instant	credit	amzn:FinanceLeaseObligationsNoncurrent
4	amzn:ConstructionLiabilitiesNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	amzn:ConstructionLiabilitiesNoncurrent
5	us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued
6	us-gaap:DeferredIncomeTaxLiabilitiesNet (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredIncomeTaxLiabilitiesNet
7	us-gaap:OtherLiabilitiesAndDeferredRevenueNoncurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherLiabilitiesAndDeferredRevenueNoncurrent
8	Total other long-term liabilities	Concept (Monetary)	instant	credit	us-gaap:OtherLiabilitiesNoncurrent

Model Structure
Network	2406403 - Disclosure - Other Long-Term Liabilities - Long Term Capital Lease Obligation (Details) (http://www.amazon.com/role/OtherLongTermLiabilitiesLongTermCapitalLeaseObligationDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Other Liabilities Disclosure [Abstract]	Abstract	duration		us-gaap:OtherLiabilitiesDisclosureAbstract
2	us-gaap:CapitalLeasesFutureMinimumPaymentsNetMinimumPayments1 (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesFutureMinimumPaymentsNetMinimumPayments1
3	us-gaap:CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments (negatedLabel)	Concept (Monetary)	instant	debit	us-gaap:CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments
4	us-gaap:CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments
5	us-gaap:CapitalLeaseObligationsCurrent (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeaseObligationsCurrent
6	us-gaap:CapitalLeaseObligationsNoncurrent (verboseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeaseObligationsNoncurrent

Model Structure
Network	2406404 - Disclosure - Other Long-Term Liabilities - Long Term Finance Lease Obligation (Details) (http://www.amazon.com/role/OtherLongTermLiabilitiesLongTermFinanceLeaseObligationDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Other Liabilities Disclosure [Abstract]	Abstract	duration		us-gaap:OtherLiabilitiesDisclosureAbstract
2	amzn:FinanceLeasesFutureMinimumPaymentsNetMinimumPayments (terseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesFutureMinimumPaymentsNetMinimumPayments
3	amzn:FinanceLeasesFutureMinimumPaymentsInterestIncludedinPayments (negatedTerseLabel)	Concept (Monetary)	instant	debit	amzn:FinanceLeasesFutureMinimumPaymentsInterestIncludedinPayments
4	amzn:FinanceLeasesFutureMinimumPaymentsPresentValueofNetMinimumPayments (totalLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesFutureMinimumPaymentsPresentValueofNetMinimumPayments
5	amzn:FinanceLeaseObligationsCurrent (negatedTerseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeaseObligationsCurrent
6	amzn:FinanceLeaseObligationsNoncurrent (verboseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeaseObligationsNoncurrent

Model Structure
Network	2407402 - Disclosure - Commitments and Contingencies - Commitments (Details) (http://www.amazon.com/role/CommitmentsAndContingenciesCommitmentsDetails)
Table	(implied)

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

Model Structure
Network	2407403 - Disclosure - Commitments and Contingencies - Principal Contractual Commitments Excluding Open Orders (Details) (http://www.amazon.com/role/CommitmentsAndContingenciesPrincipalContractualCommitmentsExcludingOpenOrdersDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Commitments and Contingencies Disclosure [Abstract]	Abstract	duration		us-gaap:CommitmentsAndContingenciesDisclosureAbstract
2	Debt principal and interest	Abstract	duration		us-gaap:LongTermDebtByMaturityAbstract
3	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths (terseLabel)	Concept (Monetary)	instant	credit	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths
4	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo (terseLabel)	Concept (Monetary)	instant	credit	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo
5	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree (terseLabel)	Concept (Monetary)	instant	credit	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree
6	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour (terseLabel)	Concept (Monetary)	instant	credit	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour
7	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFive (terseLabel)	Concept (Monetary)	instant	credit	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFive
8	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestAfterYearFive (terseLabel)	Concept (Monetary)	instant	credit	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestAfterYearFive
9	amzn:LongTermDebtIncludingInterest (totalLabel)	Concept (Monetary)	instant	credit	amzn:LongTermDebtIncludingInterest
10	us-gaap:CapitalLeasesFutureMinimumPaymentsDueAbstract (terseLabel)	Abstract	duration		us-gaap:CapitalLeasesFutureMinimumPaymentsDueAbstract
11	us-gaap:CapitalLeasesFutureMinimumPaymentsDueCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesFutureMinimumPaymentsDueCurrent
12	us-gaap:CapitalLeasesFutureMinimumPaymentsDueInTwoYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesFutureMinimumPaymentsDueInTwoYears
13	us-gaap:CapitalLeasesFutureMinimumPaymentsDueInThreeYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesFutureMinimumPaymentsDueInThreeYears
14	us-gaap:CapitalLeasesFutureMinimumPaymentsDueInFourYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesFutureMinimumPaymentsDueInFourYears
15	us-gaap:CapitalLeasesFutureMinimumPaymentsDueInFiveYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesFutureMinimumPaymentsDueInFiveYears
16	us-gaap:CapitalLeasesFutureMinimumPaymentsDueThereafter (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesFutureMinimumPaymentsDueThereafter
17	us-gaap:CapitalLeasesFutureMinimumPaymentsDue (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:CapitalLeasesFutureMinimumPaymentsDue
18	Current capital lease obligations	Concept (Monetary)	instant	credit	us-gaap:CapitalLeaseObligationsCurrent
19	Noncurrent capital lease obligations	Concept (Monetary)	instant	credit	us-gaap:CapitalLeaseObligationsNoncurrent
20	amzn:FinanceLeasesFutureMinimumPaymentsDueFiscalYearMaturityAbstract (terseLabel)	Abstract	duration		amzn:FinanceLeasesFutureMinimumPaymentsDueFiscalYearMaturityAbstract
21	amzn:FinanceLeasesFutureMinimumPaymentsDueNextTwelveMonths (terseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesFutureMinimumPaymentsDueNextTwelveMonths
22	amzn:FinanceLeasesFutureMinimumPaymentsDueInTwoYears (terseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesFutureMinimumPaymentsDueInTwoYears
23	amzn:FinanceLeasesFutureMinimumPaymentsDueInThreeYears (terseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesFutureMinimumPaymentsDueInThreeYears
24	amzn:FinanceLeasesFutureMinimumPaymentsDueInFourYears (terseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesFutureMinimumPaymentsDueInFourYears
25	amzn:FinanceLeasesFutureMinimumPaymentsDueInFiveYears (terseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesFutureMinimumPaymentsDueInFiveYears
26	amzn:FinanceLeasesFutureMinimumPaymentsDueThereafter (terseLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesFutureMinimumPaymentsDueThereafter
27	amzn:FinanceLeasesFutureMinimumPaymentsDue (totalLabel)	Concept (Monetary)	instant	credit	amzn:FinanceLeasesFutureMinimumPaymentsDue
28	Current finance lease obligations	Concept (Monetary)	instant	credit	amzn:FinanceLeaseObligationsCurrent
29	Noncurrent finance lease obligations	Concept (Monetary)	instant	credit	amzn:FinanceLeaseObligationsNoncurrent
30	us-gaap:OperatingLeasesFutureMinimumPaymentsDueAbstract (terseLabel)	Abstract	duration		us-gaap:OperatingLeasesFutureMinimumPaymentsDueAbstract
31	us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent
32	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInTwoYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInTwoYears
33	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInThreeYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInThreeYears
34	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFourYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFourYears
35	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFiveYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFiveYears
36	us-gaap:OperatingLeasesFutureMinimumPaymentsDueThereafter (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDueThereafter
37	us-gaap:OperatingLeasesFutureMinimumPaymentsDue (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:OperatingLeasesFutureMinimumPaymentsDue
38	us-gaap:UnrecordedUnconditionalPurchaseObligationAbstract (terseLabel)	Abstract	duration		us-gaap:UnrecordedUnconditionalPurchaseObligationAbstract
39	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary
40	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary
41	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary
42	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary
43	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary
44	us-gaap:UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears
45	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
46	us-gaap:OtherCommitmentFiscalYearMaturityAbstract (terseLabel)	Abstract	duration		us-gaap:OtherCommitmentFiscalYearMaturityAbstract
47	us-gaap:OtherCommitmentDueInNextTwelveMonths (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherCommitmentDueInNextTwelveMonths
48	us-gaap:OtherCommitmentDueInSecondYear (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherCommitmentDueInSecondYear
49	us-gaap:OtherCommitmentDueInThirdYear (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherCommitmentDueInThirdYear
50	us-gaap:OtherCommitmentDueInFourthYear (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherCommitmentDueInFourthYear
51	us-gaap:OtherCommitmentDueInFifthYear (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherCommitmentDueInFifthYear
52	us-gaap:OtherCommitmentDueAfterFifthYear (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherCommitmentDueAfterFifthYear
53	us-gaap:OtherCommitment (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:OtherCommitment
54	Accrued tax contingencies	Concept (Monetary)	instant	credit	us-gaap:UnrecognizedTaxBenefits
55	us-gaap:ContractualObligationFiscalYearMaturityAbstract (terseLabel)	Abstract	duration		us-gaap:ContractualObligationFiscalYearMaturityAbstract
56	us-gaap:ContractualObligationDueInNextTwelveMonths (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractualObligationDueInNextTwelveMonths
57	us-gaap:ContractualObligationDueInSecondYear (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractualObligationDueInSecondYear
58	us-gaap:ContractualObligationDueInThirdYear (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractualObligationDueInThirdYear
59	us-gaap:ContractualObligationDueInFourthYear (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractualObligationDueInFourthYear
60	us-gaap:ContractualObligationDueInFifthYear (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractualObligationDueInFifthYear
61	us-gaap:ContractualObligationDueAfterFifthYear (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractualObligationDueAfterFifthYear
62	us-gaap:ContractualObligation (totalLabel)	Concept (Monetary)	instant	credit	us-gaap:ContractualObligation

Model Structure
Network	2407404 - Disclosure - Commitments and Contingencies - Pledged Assets (Details) (http://www.amazon.com/role/CommitmentsAndContingenciesPledgedAssetsDetails)
Table	(implied)

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

Model Structure
Network	2407405 - Disclosure - Commitments and Contingencies - Legal Proceedings (Details) (http://www.amazon.com/role/CommitmentsAndContingenciesLegalProceedingsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Commitments and Contingencies Disclosure [Abstract]	Abstract	duration		us-gaap:CommitmentsAndContingenciesDisclosureAbstract
2	us-gaap:LossContingenciesTable (terseLabel)	Table	duration		us-gaap:LossContingenciesTable
3	srt:LitigationCaseAxis (terseLabel)	Axis	duration		srt:LitigationCaseAxis
4	srt:LitigationCaseTypeDomain (terseLabel)	Member	duration		srt:LitigationCaseTypeDomain
5	amzn:NationwideBreachOfContractAndUnjustEnrichmentClaimsMember (terseLabel)	Member	duration		amzn:NationwideBreachOfContractAndUnjustEnrichmentClaimsMember
6	amzn:LegalProceedingsWithEolasTechnologiesInc.Member (terseLabel)	Member	duration		amzn:LegalProceedingsWithEolasTechnologiesInc.Member
7	us-gaap:LitigationStatusAxis (terseLabel)	Axis	duration		us-gaap:LitigationStatusAxis
8	us-gaap:LitigationStatusDomain (terseLabel)	Member	duration		us-gaap:LitigationStatusDomain
9	us-gaap:PendingLitigationMember (terseLabel)	Member	duration		us-gaap:PendingLitigationMember
10	srt:RangeAxis (terseLabel)	Axis	duration		srt:RangeAxis
11	srt:RangeMember (terseLabel)	Member	duration		srt:RangeMember
12	srt:MinimumMember (terseLabel)	Member	duration		srt:MinimumMember
13	srt:MaximumMember (terseLabel)	Member	duration		srt:MaximumMember
14	us-gaap:LossContingenciesLineItems (terseLabel)	LineItems	duration		us-gaap:LossContingenciesLineItems
15	us-gaap:LossContingencyNewClaimsFiledNumber (terseLabel)	Concept (Integer)	duration		us-gaap:LossContingencyNewClaimsFiledNumber
16	us-gaap:LossContingencyEstimateOfPossibleLoss (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:LossContingencyEstimateOfPossibleLoss

Model Structure
Network	2408402 - Disclosure - Stockholders' Equity - Additional Information (Details) (http://www.amazon.com/role/StockholdersEquityAdditionalInformationDetails)
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:ScheduleOfStockByClassTable (terseLabel)	Table	duration		us-gaap:ScheduleOfStockByClassTable
3	us-gaap:ShareRepurchaseProgramAxis (terseLabel)	Axis	duration		us-gaap:ShareRepurchaseProgramAxis
4	us-gaap:ShareRepurchaseProgramDomain (terseLabel)	Member	duration		us-gaap:ShareRepurchaseProgramDomain
5	amzn:February2016ProgramMember (terseLabel)	Member	duration		amzn:February2016ProgramMember
6	srt:RangeAxis (terseLabel)	Axis	duration		srt:RangeAxis
7	srt:RangeMember (terseLabel)	Member	duration		srt:RangeMember
8	srt:MinimumMember (terseLabel)	Member	duration		srt:MinimumMember
9	srt:MaximumMember (terseLabel)	Member	duration		srt:MaximumMember
10	us-gaap:AwardTypeAxis (terseLabel)	Axis	duration		us-gaap:AwardTypeAxis
11	us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain (terseLabel)	Member	duration		us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain
12	us-gaap:RestrictedStockUnitsRSUMember (terseLabel)	Member	duration		us-gaap:RestrictedStockUnitsRSUMember
13	us-gaap:ClassOfStockLineItems (terseLabel)	LineItems	duration		us-gaap:ClassOfStockLineItems
14	us-gaap:PreferredStockSharesAuthorized (terseLabel)	Concept (Shares)	instant		us-gaap:PreferredStockSharesAuthorized
15	us-gaap:PreferredStockParOrStatedValuePerShare (terseLabel)	Concept (Per-Share)	instant		us-gaap:PreferredStockParOrStatedValuePerShare
16	us-gaap:PreferredStockSharesOutstanding (terseLabel)	Concept (Shares)	instant		us-gaap:PreferredStockSharesOutstanding
17	amzn:CommonStockSharesOutstandingIncludingNonvestedStockAwards (terseLabel)	Concept (Shares)	instant		amzn:CommonStockSharesOutstandingIncludingNonvestedStockAwards
18	us-gaap:StockRepurchaseProgramAuthorizedAmount1 (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:StockRepurchaseProgramAuthorizedAmount1
19	us-gaap:StockRepurchasedDuringPeriodValue (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:StockRepurchasedDuringPeriodValue
20	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1 (terseLabel)	Concept (Duration)	duration		us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
21	us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
22	amzn:EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostExpectedToBeExpensedInNextTwelveMonthsPercentage (terseLabel)	Concept (Percent)	duration		amzn:EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostExpectedToBeExpensedInNextTwelveMonthsPercentage
23	us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1 (terseLabel)	Concept (Duration)	duration		us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
24	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate (terseLabel)	Concept (Percent)	instant		amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate
25	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
26	us-gaap:CommonStockCapitalSharesReservedForFutureIssuance (terseLabel)	Concept (Shares)	instant		us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

Model Structure
Network	2408403 - Disclosure - Stockholders' Equity - Stock-based Compensation Expense (Details) (http://www.amazon.com/role/StockholdersEquityStockBasedCompensationExpenseDetails)
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:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable (terseLabel)	Table	duration		us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable
3	us-gaap:IncomeStatementLocationAxis (terseLabel)	Axis	duration		us-gaap:IncomeStatementLocationAxis
4	us-gaap:IncomeStatementLocationDomain (terseLabel)	Member	duration		us-gaap:IncomeStatementLocationDomain
5	us-gaap:CostOfSalesMember (terseLabel)	Member	duration		us-gaap:CostOfSalesMember
6	amzn:FulfillmentExpenseMember (terseLabel)	Member	duration		amzn:FulfillmentExpenseMember
7	us-gaap:SellingAndMarketingExpenseMember (terseLabel)	Member	duration		us-gaap:SellingAndMarketingExpenseMember
8	amzn:TechnologyAndContentExpenseMember (terseLabel)	Member	duration		amzn:TechnologyAndContentExpenseMember
9	us-gaap:GeneralAndAdministrativeExpenseMember (terseLabel)	Member	duration		us-gaap:GeneralAndAdministrativeExpenseMember
10	us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems (terseLabel)	LineItems	duration		us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems
11	us-gaap:AllocatedShareBasedCompensationExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:AllocatedShareBasedCompensationExpense
12	us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

Model Structure
Network	2408404 - Disclosure - Stockholders' Equity - Restricted Stock Unit Activity (Details) (http://www.amazon.com/role/StockholdersEquityRestrictedStockUnitActivityDetails)
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: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	Ending balance (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	Ending Balance	Concept (Per-Share)	instant	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

Model Structure
Network	2408405 - Disclosure - Stockholders' Equity - Scheduled Vesting for Outstanding Restricted Stock Units (Details) (http://www.amazon.com/role/StockholdersEquityScheduledVestingForOutstandingRestrictedStockUnitsDetails)
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:RestrictedStockUnitsRSUMember (terseLabel)	Member	duration	us-gaap:RestrictedStockUnitsRSUMember
6	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems (terseLabel)	LineItems	duration	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
7	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract (terseLabel)	Abstract	duration	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract
8	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingNextTwelveMonths (terseLabel)	Concept (Shares)	instant	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingNextTwelveMonths
9	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearTwo (terseLabel)	Concept (Shares)	instant	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearTwo
10	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearThree (terseLabel)	Concept (Shares)	instant	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearThree
11	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFour (terseLabel)	Concept (Shares)	instant	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFour
12	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFive (terseLabel)	Concept (Shares)	instant	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFive
13	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingAfterYearFive (terseLabel)	Concept (Shares)	instant	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingAfterYearFive
14	Total	Concept (Shares)	instant	us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

Model Structure
Network	2410402 - Disclosure - Income Taxes - Additional Information (Details) (http://www.amazon.com/role/IncomeTaxesAdditionalInformationDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration		us-gaap:IncomeTaxDisclosureAbstract
2	Provision for income taxes, net	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExpenseBenefit
3	Cash taxes paid, net of refunds	Concept (Monetary)	duration	credit	us-gaap:IncomeTaxesPaidNet
4	amzn:TaxCutsAndJobsActOf2017ProvisionalIncomeTaxBenefit (negatedLabel)	Concept (Monetary)	duration	debit	amzn:TaxCutsAndJobsActOf2017ProvisionalIncomeTaxBenefit
5	amzn:IncomeTaxesTable (terseLabel)	Table	duration		amzn:IncomeTaxesTable
6	us-gaap:IncomeTaxAuthorityAxis (terseLabel)	Axis	duration		us-gaap:IncomeTaxAuthorityAxis
7	us-gaap:IncomeTaxAuthorityDomain (terseLabel)	Member	duration		us-gaap:IncomeTaxAuthorityDomain
8	us-gaap:DomesticCountryMember (terseLabel)	Member	duration		us-gaap:DomesticCountryMember
9	us-gaap:ForeignCountryMember (terseLabel)	Member	duration		us-gaap:ForeignCountryMember
10	us-gaap:StateAndLocalJurisdictionMember (terseLabel)	Member	duration		us-gaap:StateAndLocalJurisdictionMember
11	us-gaap:TaxCreditCarryforwardAxis (terseLabel)	Axis	duration		us-gaap:TaxCreditCarryforwardAxis
12	us-gaap:TaxCreditCarryforwardNameDomain (terseLabel)	Member	duration		us-gaap:TaxCreditCarryforwardNameDomain
13	us-gaap:CapitalLossCarryforwardMember (terseLabel)	Member	duration		us-gaap:CapitalLossCarryforwardMember
14	us-gaap:IncomeTaxAuthorityNameAxis (terseLabel)	Axis	duration		us-gaap:IncomeTaxAuthorityNameAxis
15	us-gaap:IncomeTaxAuthorityNameDomain (terseLabel)	Member	duration		us-gaap:IncomeTaxAuthorityNameDomain
16	us-gaap:InternalRevenueServiceIRSMember (terseLabel)	Member	duration		us-gaap:InternalRevenueServiceIRSMember
17	amzn:LuxembourgTaxAdministrationMember (terseLabel)	Member	duration		amzn:LuxembourgTaxAdministrationMember
18	amzn:IncomeTaxesLineItems (terseLabel)	LineItems	duration		amzn:IncomeTaxesLineItems
19	us-gaap:ValuationAllowanceDeferredTaxAssetChangeInAmount (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:ValuationAllowanceDeferredTaxAssetChangeInAmount
20	us-gaap:OperatingLossCarryforwards (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:OperatingLossCarryforwards
21	us-gaap:TaxCreditCarryforwardAmount (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:TaxCreditCarryforwardAmount
22	us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
23	us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
24	us-gaap:IncomeTaxExaminationEstimateOfPossibleLoss (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExaminationEstimateOfPossibleLoss

Model Structure
Network	2410403 - Disclosure - Income Taxes - Components of Provision for Income Taxes, Net (Details) (http://www.amazon.com/role/IncomeTaxesComponentsOfProvisionForIncomeTaxesNetDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration		us-gaap:IncomeTaxDisclosureAbstract
2	us-gaap:CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract (terseLabel)	Abstract	duration		us-gaap:CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract
3	us-gaap:CurrentFederalTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:CurrentFederalTaxExpenseBenefit
4	us-gaap:CurrentStateAndLocalTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:CurrentStateAndLocalTaxExpenseBenefit
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:DeferredFederalIncomeTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DeferredFederalIncomeTaxExpenseBenefit
9	us-gaap:DeferredStateAndLocalIncomeTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DeferredStateAndLocalIncomeTaxExpenseBenefit
10	us-gaap:DeferredForeignIncomeTaxExpenseBenefit (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:DeferredForeignIncomeTaxExpenseBenefit
11	Deferred taxes	Concept (Monetary)	duration	debit	us-gaap:DeferredIncomeTaxExpenseBenefit
12	us-gaap:IncomeTaxExpenseBenefit (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExpenseBenefit

Model Structure
Network	2410404 - Disclosure - Income Taxes - U.S. and International Components of Income Before Income Taxes (Details) (http://www.amazon.com/role/IncomeTaxesUSAndInternationalComponentsOfIncomeBeforeIncomeTaxesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration		us-gaap:IncomeTaxDisclosureAbstract
2	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
3	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
4	Income before income taxes	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

Model Structure
Network	2410405 - Disclosure - Income Taxes - Items Accounting for Differences Between Income Taxes Computed at Federal Statutory Rate and Provision Recorded for Income Taxes (Details) (http://www.amazon.com/role/IncomeTaxesItemsAccountingForDifferencesBetweenIncomeTaxesComputedAtFederalStatutoryRateAndProvisionRecordedForIncomeTaxesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Income Tax Disclosure [Abstract]	Abstract	duration		us-gaap:IncomeTaxDisclosureAbstract
2	us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate (verboseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
3	amzn:EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsAbstract (terseLabel)	Abstract	duration		amzn:EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsAbstract
4	us-gaap:IncomeTaxReconciliationForeignIncomeTaxRateDifferential (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxReconciliationForeignIncomeTaxRateDifferential
5	us-gaap:IncomeTaxReconciliationStateAndLocalIncomeTaxes (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxReconciliationStateAndLocalIncomeTaxes
6	us-gaap:IncomeTaxReconciliationTaxCredits (negatedTerseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeTaxReconciliationTaxCredits
7	us-gaap:IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
8	us-gaap:IncomeTaxReconciliationDeductionsQualifiedProductionActivities (negatedLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeTaxReconciliationDeductionsQualifiedProductionActivities
9	amzn:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Amount (terseLabel)	Concept (Monetary)	duration	debit	amzn:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Amount
10	us-gaap:IncomeTaxReconciliationOtherAdjustments (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxReconciliationOtherAdjustments
11	us-gaap:IncomeTaxExpenseBenefit (totalLabel)	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExpenseBenefit
12	us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount

Model Structure
Network	2410406 - Disclosure - Income Taxes - Deferred Income Tax Assets and Liabilities (Details) (http://www.amazon.com/role/IncomeTaxesDeferredIncomeTaxAssetsAndLiabilitiesDetails)
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:DeferredTaxAssetsOperatingLossCarryforwardsDomestic (verboseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic
5	us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign
6	us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
7	us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
8	us-gaap:DeferredTaxAssetsDeferredIncome (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsDeferredIncome
9	us-gaap:DeferredTaxAssetsInvestments (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsInvestments
10	us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment
11	us-gaap:DeferredTaxAssetsOther (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsOther
12	us-gaap:DeferredTaxAssetsTaxCreditCarryforwards (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsTaxCreditCarryforwards
13	us-gaap:DeferredTaxAssetsGross (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsGross
14	us-gaap:DeferredTaxAssetsValuationAllowance (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxAssetsValuationAllowance
15	us-gaap:DeferredTaxAssetsNet (totalLabel)	Concept (Monetary)	instant	debit	us-gaap:DeferredTaxAssetsNet
16	us-gaap:ComponentsOfDeferredTaxLiabilitiesAbstract (terseLabel)	Abstract	duration		us-gaap:ComponentsOfDeferredTaxLiabilitiesAbstract
17	us-gaap:DeferredTaxLiabilitiesAbstract (terseLabel)	Abstract	duration		us-gaap:DeferredTaxLiabilitiesAbstract
18	us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
19	us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
20	us-gaap:DeferredTaxLiabilitiesOther (negatedTerseLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxLiabilitiesOther
21	us-gaap:DeferredTaxLiabilities (negatedTotalLabel)	Concept (Monetary)	instant	credit	us-gaap:DeferredTaxLiabilities

Model Structure
Network	2410407 - Disclosure - Income Taxes - Reconciliation of Tax Contingencies (Details) (http://www.amazon.com/role/IncomeTaxesReconciliationOfTaxContingenciesDetails)
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	us-gaap:UnrecognizedTaxBenefits (periodStartLabel)	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:UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
7	us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities (negatedTerseLabel)	Concept (Monetary)	duration	debit	us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
8	us-gaap:UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations (negatedLabel)	Concept (Monetary)	duration	debit	us-gaap:UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
9	Gross tax contingencies - end of period	Concept (Monetary)	instant	credit	us-gaap:UnrecognizedTaxBenefits
10	us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

Model Structure
Network	2411402 - Disclosure - Segment Information - Additional Information (Details) (http://www.amazon.com/role/SegmentInformationAdditionalInformationDetails)
Table	(implied)

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

Model Structure
Network	2411403 - Disclosure - Segment Information - Reportable Segments and Reconciliation to Consolidated Net Income (Details) (http://www.amazon.com/role/SegmentInformationReportableSegmentsAndReconciliationToConsolidatedNetIncomeDetails)
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	amzn:NorthAmericaSegmentMember (terseLabel)	Member	duration		amzn:NorthAmericaSegmentMember
6	amzn:InternationalSegmentMember (terseLabel)	Member	duration		amzn:InternationalSegmentMember
7	amzn:AmazonWebServicesSegmentMember (terseLabel)	Member	duration		amzn:AmazonWebServicesSegmentMember
8	us-gaap:SegmentReportingInformationLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingInformationLineItems
9	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
10	us-gaap:CostsAndExpenses (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:CostsAndExpenses
11	Operating income (loss)	Concept (Monetary)	duration	credit	us-gaap:OperatingIncomeLoss
12	us-gaap:NonoperatingIncomeExpense (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NonoperatingIncomeExpense
13	Provision for income taxes	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExpenseBenefit
14	us-gaap:IncomeLossFromEquityMethodInvestments (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromEquityMethodInvestments
15	Net income	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss

Model Structure
Network	2411404 - Disclosure - Segment Information - Disaggregation of Revenue (Details) (http://www.amazon.com/role/SegmentInformationDisaggregationOfRevenueDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Disaggregation of Revenue [Abstract]	Abstract	duration		us-gaap:DisaggregationOfRevenueAbstract
2	us-gaap:DisaggregationOfRevenueTable (terseLabel)	Table	duration		us-gaap:DisaggregationOfRevenueTable
3	srt:ProductOrServiceAxis (terseLabel)	Axis	duration		srt:ProductOrServiceAxis
4	srt:ProductsAndServicesDomain (terseLabel)	Member	duration		srt:ProductsAndServicesDomain
5	amzn:OnlineStoresMember (terseLabel)	Member	duration		amzn:OnlineStoresMember
6	amzn:PhysicalStoresMember (terseLabel)	Member	duration		amzn:PhysicalStoresMember
7	amzn:ThirdPartySellerServicesMember (terseLabel)	Member	duration		amzn:ThirdPartySellerServicesMember
8	amzn:SubscriptionServicesMember (terseLabel)	Member	duration		amzn:SubscriptionServicesMember
9	amzn:AmazonWebServicesMember (terseLabel)	Member	duration		amzn:AmazonWebServicesMember
10	amzn:OtherServicesMember (terseLabel)	Member	duration		amzn:OtherServicesMember
11	us-gaap:DisaggregationOfRevenueLineItems (terseLabel)	LineItems	duration		us-gaap:DisaggregationOfRevenueLineItems
12	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

Model Structure
Network	2411405 - Disclosure - Segment Information Net Sales Attributed to Countries Representing Portion of Consolidated Net Sales (Details) (http://www.amazon.com/role/SegmentInformationNetSalesAttributedToCountriesRepresentingPortionOfConsolidatedNetSalesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Segment Reporting [Abstract]	Abstract	duration		us-gaap:SegmentReportingAbstract
2	us-gaap:ReconciliationOfRevenueFromSegmentsToConsolidatedTable (terseLabel)	Table	duration		us-gaap:ReconciliationOfRevenueFromSegmentsToConsolidatedTable
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	country:DE (terseLabel)	Member	duration		country:DE
7	country:GB (terseLabel)	Member	duration		country:GB
8	country:JP (terseLabel)	Member	duration		country:JP
9	us-gaap:NonUsMember (terseLabel)	Member	duration		us-gaap:NonUsMember
10	us-gaap:SegmentReportingRevenueReconcilingItemLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingRevenueReconcilingItemLineItems
11	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

Model Structure
Network	2411406 - Disclosure - Segment Information - Reconciliation of Assets from Segment to Consolidated (Details) (http://www.amazon.com/role/SegmentInformationReconciliationOfAssetsFromSegmentToConsolidatedDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Segment Reporting [Abstract]	Abstract	duration		us-gaap:SegmentReportingAbstract
2	us-gaap:ReconciliationOfAssetsFromSegmentToConsolidatedTable (terseLabel)	Table	duration		us-gaap:ReconciliationOfAssetsFromSegmentToConsolidatedTable
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	amzn:NorthAmericaSegmentMember (terseLabel)	Member	duration		amzn:NorthAmericaSegmentMember
10	amzn:InternationalSegmentMember (terseLabel)	Member	duration		amzn:InternationalSegmentMember
11	amzn:AmazonWebServicesSegmentMember (terseLabel)	Member	duration		amzn:AmazonWebServicesSegmentMember
12	us-gaap:SegmentReportingAssetReconcilingItemLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingAssetReconcilingItemLineItems
13	us-gaap:Assets (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:Assets

Model Structure
Network	2411407 - Disclosure - Segment Information - Reconciliation of Property and Equipment from Segments to Consolidated (Details) (http://www.amazon.com/role/SegmentInformationReconciliationOfPropertyAndEquipmentFromSegmentsToConsolidatedDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Segment Reporting [Abstract]	Abstract	duration		us-gaap:SegmentReportingAbstract
2	us-gaap:ReconciliationOfOtherSignificantReconcilingItemsFromSegmentsToConsolidatedTable (terseLabel)	Table	duration		us-gaap:ReconciliationOfOtherSignificantReconcilingItemsFromSegmentsToConsolidatedTable
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	amzn:NorthAmericaSegmentMember (terseLabel)	Member	duration		amzn:NorthAmericaSegmentMember
10	amzn:InternationalSegmentMember (terseLabel)	Member	duration		amzn:InternationalSegmentMember
11	amzn:AmazonWebServicesSegmentMember (terseLabel)	Member	duration		amzn:AmazonWebServicesSegmentMember
12	us-gaap:SegmentReportingOtherSignificantReconcilingItemLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingOtherSignificantReconcilingItemLineItems
13	us-gaap:PropertyPlantAndEquipmentNet (terseLabel)	Concept (Monetary)	instant	debit	us-gaap:PropertyPlantAndEquipmentNet

Model Structure
Network	2411408 - Disclosure - Segment Information - Reconciliation of Property and Equipment Additions from Segments to Consolidated (Details) (http://www.amazon.com/role/SegmentInformationReconciliationOfPropertyAndEquipmentAdditionsFromSegmentsToConsolidatedDetails)
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	amzn:NorthAmericaSegmentMember (terseLabel)	Member	duration		amzn:NorthAmericaSegmentMember
10	amzn:InternationalSegmentMember (terseLabel)	Member	duration		amzn:InternationalSegmentMember
11	amzn:AmazonWebServicesSegmentMember (terseLabel)	Member	duration		amzn:AmazonWebServicesSegmentMember
12	amzn:NorthAmericaAndInternationalSegmentMember (terseLabel)	Member	duration		amzn:NorthAmericaAndInternationalSegmentMember
13	us-gaap:PropertyPlantAndEquipmentByTypeAxis (terseLabel)	Axis	duration		us-gaap:PropertyPlantAndEquipmentByTypeAxis
14	us-gaap:PropertyPlantAndEquipmentTypeDomain (terseLabel)	Member	duration		us-gaap:PropertyPlantAndEquipmentTypeDomain
15	us-gaap:AssetsHeldUnderCapitalLeasesMember (terseLabel)	Member	duration		us-gaap:AssetsHeldUnderCapitalLeasesMember
16	amzn:AssetsUnderOtherFinancingArrangementsMember (terseLabel)	Member	duration		amzn:AssetsUnderOtherFinancingArrangementsMember
17	us-gaap:SegmentReportingInformationLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingInformationLineItems
18	us-gaap:PropertyPlantAndEquipmentAdditions (terseLabel)	Concept (Monetary)	duration	debit	us-gaap:PropertyPlantAndEquipmentAdditions

Model Structure
Network	2411409 - Disclosure - Segment Information - Depreciation Expense, by Segment (Details) (http://www.amazon.com/role/SegmentInformationDepreciationExpenseBySegmentDetails)
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	amzn:NorthAmericaSegmentMember (terseLabel)	Member	duration		amzn:NorthAmericaSegmentMember
6	amzn:InternationalSegmentMember (terseLabel)	Member	duration		amzn:InternationalSegmentMember
7	amzn:AmazonWebServicesSegmentMember (terseLabel)	Member	duration		amzn:AmazonWebServicesSegmentMember
8	us-gaap:SegmentReportingInformationLineItems (terseLabel)	LineItems	duration		us-gaap:SegmentReportingInformationLineItems
9	us-gaap:Depreciation (verboseLabel)	Concept (Monetary)	duration	debit	us-gaap:Depreciation

Model Structure
Network	2412402 - Disclosure - Quarterly Results (Unaudited) (Details) (http://www.amazon.com/role/QuarterlyResultsUnauditedDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Quarterly Financial Information Disclosure [Abstract]	Abstract	duration		us-gaap:QuarterlyFinancialInformationDisclosureAbstract
2	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
3	us-gaap:OperatingIncomeLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:OperatingIncomeLoss
4	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
5	Provision for income taxes	Concept (Monetary)	duration	debit	us-gaap:IncomeTaxExpenseBenefit
6	us-gaap:NetIncomeLoss (terseLabel)	Concept (Monetary)	duration	credit	us-gaap:NetIncomeLoss
7	us-gaap:EarningsPerShareBasic (verboseLabel)	Concept (Per-Share)	duration		us-gaap:EarningsPerShareBasic
8	us-gaap:EarningsPerShareDiluted (verboseLabel)	Concept (Per-Share)	duration		us-gaap:EarningsPerShareDiluted
9	us-gaap:WeightedAverageNumberOfSharesOutstandingAbstract (verboseLabel)	Abstract	duration		us-gaap:WeightedAverageNumberOfSharesOutstandingAbstract
10	us-gaap:WeightedAverageNumberOfSharesOutstandingBasic (terseLabel)	Concept (Shares)	duration		us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
11	us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding (terseLabel)	Concept (Shares)	duration		us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

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.amazon.com/role/DocumentAndEntityInformation)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Amendment Flag	false
2	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Current Fiscal Year End Date	--12-31
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Document Fiscal Period Focus	FY
4	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Document Fiscal Year Focus	2018
5	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Document Period End Date	2018-12-31
6	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Document Type	10-K
7	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Entity Central Index Key	0001018724
8	0001018724 (http://www.sec.gov/CIK)	2019-01-23	null	Entity Common Stock, Shares Outstanding	491202890	xbrli:shares	INF
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Entity Current Reporting Status	Yes
10	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Entity Emerging Growth Company	false
11	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Entity Filer Category	Large Accelerated Filer
12	0001018724 (http://www.sec.gov/CIK)	2018-06-30	null	Entity Public Float	693894417636	iso4217:USD	0
13	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Entity Registrant Name	AMAZON COM INC
14	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Entity Shell Company	false
15	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Entity Small Business	false
16	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Entity Voluntary Filers	No
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Entity Well-known Seasoned Issuer	Yes

Fact Table
Network	1001000 - Statement - Consolidated Statements of Cash Flows (http://www.amazon.com/role/ConsolidatedStatementsOfCashFlows)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	amzn:BuildToSuitLeaseObligationsIncurred (label)	1209000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	amzn:BuildToSuitLeaseObligationsIncurred (label)	3541000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	amzn:BuildToSuitLeaseObligationsIncurred (label)	3641000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	amzn:InterestPaidOnCapitalAndFinanceLeaseObligations (label)	206000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	amzn:InterestPaidOnCapitalAndFinanceLeaseObligations (label)	319000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	amzn:InterestPaidOnCapitalAndFinanceLeaseObligations (label)	575000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	amzn:InterestPaidOnLongTermDebt (label)	290000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	amzn:InterestPaidOnLongTermDebt (label)	328000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	amzn:InterestPaidOnLongTermDebt (label)	854000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	amzn:ProceedsFromRebatesOnPurchasesOfProductiveAssets (label)	1067000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	amzn:ProceedsFromRebatesOnPurchasesOfProductiveAssets (label)	1897000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	amzn:ProceedsFromRebatesOnPurchasesOfProductiveAssets (label)	2104000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	amzn:RepaymentsOfLongTermFinanceLeaseObligations (label)	147000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	amzn:RepaymentsOfLongTermFinanceLeaseObligations (label)	200000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	amzn:RepaymentsOfLongTermFinanceLeaseObligations (label)	337000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Capital Lease Obligations Incurred	5704000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Capital Lease Obligations Incurred	9637000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Capital Lease Obligations Incurred	10615000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2015-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	16175000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	19934000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	21856000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	32173000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	3759000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	1922000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	10317000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Deferred Income Tax Expense (Benefit)	-246000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Deferred Income Tax Expense (Benefit)	-29000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Deferred Income Tax Expense (Benefit)	441000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Depreciation, Depletion and Amortization	8116000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Depreciation, Depletion and Amortization	11478000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Depreciation, Depletion and Amortization	15341000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effect of Exchange Rate on Cash and Cash Equivalents	-212000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effect of Exchange Rate on Cash and Cash Equivalents	713000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effect of Exchange Rate on Cash and Cash Equivalents	-351000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Taxes Paid, Net	412000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Taxes Paid, Net	957000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Taxes Paid, Net	1184000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Accounts Payable	5030000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Accounts Payable	7100000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Accounts Payable	3263000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Accounts Receivable and Other Operating Assets	3436000000	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Accounts Receivable and Other Operating Assets	4780000000	iso4217:USD	-6
43	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Accounts Receivable and Other Operating Assets	4615000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities	1724000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities	283000000	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities	472000000	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Contract with Customer, Liability	1955000000	iso4217:USD	-6
48	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Contract with Customer, Liability	738000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Contract with Customer, Liability	1151000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Increase (Decrease) in Inventories	1426000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Increase (Decrease) in Inventories	3583000000	iso4217:USD	-6
52	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Increase (Decrease) in Inventories	1314000000	iso4217:USD	-6
53	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Cash Provided by (Used in) Financing Activities	-3716000000	iso4217:USD	-6
54	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Cash Provided by (Used in) Financing Activities	9928000000	iso4217:USD	-6
55	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Cash Provided by (Used in) Financing Activities	-7686000000	iso4217:USD	-6
56	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Cash Provided by (Used in) Investing Activities	-9516000000	iso4217:USD	-6
57	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Cash Provided by (Used in) Investing Activities	-27084000000	iso4217:USD	-6
58	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Cash Provided by (Used in) Investing Activities	-12369000000	iso4217:USD	-6
59	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Cash Provided by (Used in) Operating Activities	17203000000	iso4217:USD	-6
60	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Cash Provided by (Used in) Operating Activities	18365000000	iso4217:USD	-6
61	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Cash Provided by (Used in) Operating Activities	30723000000	iso4217:USD	-6
62	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Income (Loss) Attributable to Parent	2371000000	iso4217:USD	-6
63	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Net Income (Loss) Attributable to Parent	724000000	iso4217:USD	-6
64	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Net Income (Loss) Attributable to Parent	197000000	iso4217:USD	-6
65	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Net Income (Loss) Attributable to Parent	256000000	iso4217:USD	-6
66	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	1856000000	iso4217:USD	-6
67	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	3033000000	iso4217:USD	-6
68	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Net Income (Loss) Attributable to Parent	1629000000	iso4217:USD	-6
69	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Net Income (Loss) Attributable to Parent	2534000000	iso4217:USD	-6
70	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Net Income (Loss) Attributable to Parent	2883000000	iso4217:USD	-6
71	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	3027000000	iso4217:USD	-6
72	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	10073000000	iso4217:USD	-6
73	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Noncash Income (Expense)	20000000	iso4217:USD	-6
74	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Noncash Income (Expense)	292000000	iso4217:USD	-6
75	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Noncash Income (Expense)	-219000000	iso4217:USD	-6
76	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Operating Activities, Cash Flow Statement	160000000	iso4217:USD	-6
77	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Operating Activities, Cash Flow Statement	202000000	iso4217:USD	-6
78	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Operating Activities, Cash Flow Statement	274000000	iso4217:USD	-6
79	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Payments to Acquire Businesses, Net of Cash Acquired	116000000	iso4217:USD	-6
80	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Payments to Acquire Businesses, Net of Cash Acquired	13972000000	iso4217:USD	-6
81	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Payments to Acquire Businesses, Net of Cash Acquired	2186000000	iso4217:USD	-6
82	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Payments to Acquire Marketable Securities	7240000000	iso4217:USD	-6
83	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Payments to Acquire Marketable Securities	12731000000	iso4217:USD	-6
84	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Payments to Acquire Marketable Securities	7100000000	iso4217:USD	-6
85	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Payments to Acquire Productive Assets	7804000000	iso4217:USD	-6
86	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Payments to Acquire Productive Assets	11955000000	iso4217:USD	-6
87	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Payments to Acquire Productive Assets	13427000000	iso4217:USD	-6
88	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Proceeds from Issuance of Long-term Debt	618000000	iso4217:USD	-6
89	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Proceeds from Issuance of Long-term Debt	16228000000	iso4217:USD	-6
90	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Proceeds from Issuance of Long-term Debt	768000000	iso4217:USD	-6
91	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Proceeds from Sale and Maturity of Marketable Securities	4577000000	iso4217:USD	-6
92	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Proceeds from Sale and Maturity of Marketable Securities	9677000000	iso4217:USD	-6
93	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Proceeds from Sale and Maturity of Marketable Securities	8240000000	iso4217:USD	-6
94	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Repayments of Debt	327000000	iso4217:USD	-6
95	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Repayments of Debt	1301000000	iso4217:USD	-6
96	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Repayments of Debt	668000000	iso4217:USD	-6
97	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Repayments of Long-term Capital Lease Obligations	3860000000	iso4217:USD	-6
98	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Repayments of Long-term Capital Lease Obligations	4799000000	iso4217:USD	-6
99	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Repayments of Long-term Capital Lease Obligations	7449000000	iso4217:USD	-6
100	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Share-based Compensation	2975000000	iso4217:USD	-6
101	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Share-based Compensation	4215000000	iso4217:USD	-6
102	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Share-based Compensation	5418000000	iso4217:USD	-6

Fact Table
Network	1002000 - Statement - Consolidated Statements Of Operations (http://www.amazon.com/role/ConsolidatedStatementsOfOperations)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	amzn:FulfillmentExpense (label)	17619000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	amzn:FulfillmentExpense (label)	25249000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	amzn:FulfillmentExpense (label)	34027000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	amzn:TechnologyAndContentExpense (label)	16085000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	amzn:TechnologyAndContentExpense (label)	22620000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	amzn:TechnologyAndContentExpense (label)	28837000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Cost of Goods and Services Sold	88265000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Cost of Goods and Services Sold	111934000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Cost of Goods and Services Sold	139156000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Costs and Expenses	131801000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Costs and Expenses	173760000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Costs and Expenses	220466000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Earnings Per Share, Basic	5.01	iso4217:USD/xbrli:shares	2
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Earnings Per Share, Basic	1.52	iso4217:USD/xbrli:shares	2
15	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Earnings Per Share, Basic	0.41	iso4217:USD/xbrli:shares	2
16	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Earnings Per Share, Basic	0.53	iso4217:USD/xbrli:shares	2
17	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Earnings Per Share, Basic	3.85	iso4217:USD/xbrli:shares	2
18	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Earnings Per Share, Basic	6.32	iso4217:USD/xbrli:shares	2
19	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Earnings Per Share, Basic	3.36	iso4217:USD/xbrli:shares	2
20	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Earnings Per Share, Basic	5.21	iso4217:USD/xbrli:shares	2
21	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Earnings Per Share, Basic	5.91	iso4217:USD/xbrli:shares	2
22	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Earnings Per Share, Basic	6.18	iso4217:USD/xbrli:shares	2
23	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Earnings Per Share, Basic	20.68	iso4217:USD/xbrli:shares	2
24	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Earnings Per Share, Diluted	4.9	iso4217:USD/xbrli:shares	2
25	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Earnings Per Share, Diluted	1.48	iso4217:USD/xbrli:shares	2
26	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Earnings Per Share, Diluted	0.4	iso4217:USD/xbrli:shares	2
27	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Earnings Per Share, Diluted	0.52	iso4217:USD/xbrli:shares	2
28	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Earnings Per Share, Diluted	3.75	iso4217:USD/xbrli:shares	2
29	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Earnings Per Share, Diluted	6.15	iso4217:USD/xbrli:shares	2
30	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Earnings Per Share, Diluted	3.27	iso4217:USD/xbrli:shares	2
31	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Earnings Per Share, Diluted	5.07	iso4217:USD/xbrli:shares	2
32	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Earnings Per Share, Diluted	5.75	iso4217:USD/xbrli:shares	2
33	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Earnings Per Share, Diluted	6.04	iso4217:USD/xbrli:shares	2
34	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Earnings Per Share, Diluted	20.14	iso4217:USD/xbrli:shares	2
35	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	General and Administrative Expense	2432000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	General and Administrative Expense	3674000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	General and Administrative Expense	4336000000	iso4217:USD	-6
38	0001018724 (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	3892000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	953000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	666000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	316000000	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	1872000000	iso4217:USD	-6
43	0001018724 (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	3806000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	1916000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	2605000000	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	3390000000	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	3350000000	iso4217:USD	-6
48	0001018724 (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	11261000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income (Loss) from Equity Method Investments	-96000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income (Loss) from Equity Method Investments	-4000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income (Loss) from Equity Method Investments	9000000	iso4217:USD	-6
52	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1400000000	iso4217:USD	-8
53	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1425000000	iso4217:USD	-6
54	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Income Tax Expense (Benefit)	229000000	iso4217:USD	-6
55	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Income Tax Expense (Benefit)	467000000	iso4217:USD	-6
56	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Income Tax Expense (Benefit)	58000000	iso4217:USD	-6
57	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Income Tax Expense (Benefit)	16000000	iso4217:USD	-6
58	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Tax Expense (Benefit)	769000000	iso4217:USD	-6
59	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Income Tax Expense (Benefit)	287000000	iso4217:USD	-6
60	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Income Tax Expense (Benefit)	74000000	iso4217:USD	-6
61	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Income Tax Expense (Benefit)	508000000	iso4217:USD	-6
62	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Income Tax Expense (Benefit)	327000000	iso4217:USD	-6
63	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Tax Expense (Benefit)	1197000000	iso4217:USD	-6
64	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Interest Expense	484000000	iso4217:USD	-6
65	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Interest Expense	848000000	iso4217:USD	-6
66	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Interest Expense	1417000000	iso4217:USD	-6
67	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Investment Income, Interest	100000000	iso4217:USD	-6
68	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Investment Income, Interest	202000000	iso4217:USD	-6
69	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Investment Income, Interest	440000000	iso4217:USD	-6
70	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Marketing Expense	7233000000	iso4217:USD	-6
71	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Marketing Expense	10069000000	iso4217:USD	-6
72	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Marketing Expense	13814000000	iso4217:USD	-6
73	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Income (Loss) Attributable to Parent	2371000000	iso4217:USD	-6
74	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Net Income (Loss) Attributable to Parent	724000000	iso4217:USD	-6
75	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Net Income (Loss) Attributable to Parent	197000000	iso4217:USD	-6
76	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Net Income (Loss) Attributable to Parent	256000000	iso4217:USD	-6
77	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	1856000000	iso4217:USD	-6
78	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	3033000000	iso4217:USD	-6
79	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Net Income (Loss) Attributable to Parent	1629000000	iso4217:USD	-6
80	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Net Income (Loss) Attributable to Parent	2534000000	iso4217:USD	-6
81	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Net Income (Loss) Attributable to Parent	2883000000	iso4217:USD	-6
82	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	3027000000	iso4217:USD	-6
83	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	10073000000	iso4217:USD	-6
84	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Nonoperating Income (Expense)	-294000000	iso4217:USD	-6
85	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Nonoperating Income (Expense)	-300000000	iso4217:USD	-6
86	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Nonoperating Income (Expense)	-1160000000	iso4217:USD	-6
87	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Operating Income (Loss)	4186000000	iso4217:USD	-6
88	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Operating Income (Loss)	1005000000	iso4217:USD	-6
89	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Operating Income (Loss)	628000000	iso4217:USD	-6
90	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Operating Income (Loss)	347000000	iso4217:USD	-6
91	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Operating Income (Loss)	2127000000	iso4217:USD	-6
92	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Operating Income (Loss)	4106000000	iso4217:USD	-6
93	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Operating Income (Loss)	1927000000	iso4217:USD	-6
94	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Operating Income (Loss)	2983000000	iso4217:USD	-6
95	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Operating Income (Loss)	3724000000	iso4217:USD	-6
96	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Operating Income (Loss)	3786000000	iso4217:USD	-6
97	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Operating Income (Loss)	12421000000	iso4217:USD	-6
98	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Cost and Expense, Operating	167000000	iso4217:USD	-6
99	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Cost and Expense, Operating	214000000	iso4217:USD	-6
100	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Cost and Expense, Operating	296000000	iso4217:USD	-6
101	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Nonoperating Income (Expense)	90000000	iso4217:USD	-6
102	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Nonoperating Income (Expense)	346000000	iso4217:USD	-6
103	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Nonoperating Income (Expense)	-183000000	iso4217:USD	-6
104	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	135987000000	iso4217:USD	-6
105	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Product [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	94665000000	iso4217:USD	-6
106	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Service [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	41322000000	iso4217:USD	-6
107	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	35714000000	iso4217:USD	-6
108	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	37955000000	iso4217:USD	-6
109	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	43744000000	iso4217:USD	-6
110	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	60453000000	iso4217:USD	-6
111	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	177866000000	iso4217:USD	-6
112	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Product [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	118573000000	iso4217:USD	-6
113	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Service [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	59293000000	iso4217:USD	-6
114	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	51042000000	iso4217:USD	-6
115	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	52886000000	iso4217:USD	-6
116	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	56576000000	iso4217:USD	-6
117	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	72383000000	iso4217:USD	-6
118	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	232887000000	iso4217:USD	-6
119	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Product [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	141915000000	iso4217:USD	-6
120	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Service [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	90972000000	iso4217:USD	-6
121	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	484000000	xbrli:shares	-6
122	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Weighted Average Number of Shares Outstanding, Diluted	490000000	xbrli:shares	-6
123	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Weighted Average Number of Shares Outstanding, Diluted	492000000	xbrli:shares	-6
124	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Weighted Average Number of Shares Outstanding, Diluted	494000000	xbrli:shares	-6
125	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	496000000	xbrli:shares	-6
126	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	493000000	xbrli:shares	-6
127	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Weighted Average Number of Shares Outstanding, Diluted	498000000	xbrli:shares	-6
128	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Weighted Average Number of Shares Outstanding, Diluted	500000000	xbrli:shares	-6
129	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Weighted Average Number of Shares Outstanding, Diluted	501000000	xbrli:shares	-6
130	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	501000000	xbrli:shares	-6
131	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	500000000	xbrli:shares	-6
132	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Weighted Average Number of Shares Outstanding, Basic	474000000	xbrli:shares	-6
133	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Weighted Average Number of Shares Outstanding, Basic	477000000	xbrli:shares	-6
134	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Weighted Average Number of Shares Outstanding, Basic	479000000	xbrli:shares	-6
135	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Weighted Average Number of Shares Outstanding, Basic	481000000	xbrli:shares	-6
136	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Basic	483000000	xbrli:shares	-6
137	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Basic	480000000	xbrli:shares	-6
138	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Weighted Average Number of Shares Outstanding, Basic	484000000	xbrli:shares	-6
139	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Weighted Average Number of Shares Outstanding, Basic	486000000	xbrli:shares	-6
140	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Weighted Average Number of Shares Outstanding, Basic	488000000	xbrli:shares	-6
141	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Basic	490000000	xbrli:shares	-6
142	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Basic	487000000	xbrli:shares	-6

Fact Table
Network	1002000 - Statement - Consolidated Statements of Comprehensive Income (http://www.amazon.com/role/ConsolidatedStatementsOfComprehensiveIncome)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	2109000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	3534000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	9526000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Income (Loss) Attributable to Parent	2371000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Net Income (Loss) Attributable to Parent	724000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Net Income (Loss) Attributable to Parent	197000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Net Income (Loss) Attributable to Parent	256000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	1856000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	3033000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Net Income (Loss) Attributable to Parent	1629000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Net Income (Loss) Attributable to Parent	2534000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Net Income (Loss) Attributable to Parent	2883000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	3027000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	10073000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	17000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	-32000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	-9000000	iso4217:USD	-6
18	0001018724 (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	-279000000	iso4217:USD	-6
19	0001018724 (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	533000000	iso4217:USD	-6
20	0001018724 (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	-538000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Net of Tax	-262000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Net of Tax	501000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Net of Tax	-547000000	iso4217:USD	-6
24	0001018724 (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	-8000000	iso4217:USD	-6
25	0001018724 (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	-7000000	iso4217:USD	-6
26	0001018724 (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	-8000000	iso4217:USD	-6
27	0001018724 (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	9000000	iso4217:USD	-6
28	0001018724 (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	-39000000	iso4217:USD	-6
29	0001018724 (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	-17000000	iso4217:USD	-6

Fact Table
Network	1002501 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical) (http://www.amazon.com/role/ConsolidatedStatementsOfComprehensiveIncomeParenthetical)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	-49000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	5000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	6000000	iso4217:USD	-6
4	0001018724 (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, Tax	0	iso4217:USD	-6
5	0001018724 (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, Tax	0	iso4217:USD	-6
6	0001018724 (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, Tax	0	iso4217:USD	-6
7	0001018724 (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, Tax	-12000000	iso4217:USD	-6
8	0001018724 (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, Tax	5000000	iso4217:USD	-6
9	0001018724 (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, Tax	0	iso4217:USD	-6

Fact Table
Network	1004000 - Statement - Consolidated Balance Sheets (http://www.amazon.com/role/ConsolidatedBalanceSheets)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:AccruedLiabilitiesAndOtherCurrent (label)	18170000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:AccruedLiabilitiesAndOtherCurrent (label)	23663000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Accounts Payable, Current	34616000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Accounts Payable, Current	38192000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Accounts Receivable, Net, Current	13164000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Accounts Receivable, Net, Current	16677000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Accumulated Other Comprehensive Income (Loss), Net of Tax	-484000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Accumulated Other Comprehensive Income (Loss), Net of Tax	-1035000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Additional Paid in Capital	21389000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Additional Paid in Capital	26791000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Assets	83402000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Assets	131310000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Assets	162648000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Assets, Current	60197000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Assets, Current	75101000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Cash and Cash Equivalents, at Carrying Value	20522000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Cash and Cash Equivalents, at Carrying Value	31750000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Commitments and Contingencies	null	iso4217:USD
19	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Commitments and Contingencies	null	iso4217:USD
20	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Common Stock, Value, Issued	5000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Common Stock, Value, Issued	5000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Contract with Customer, Liability, Current	5097000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contract with Customer, Liability, Current	6536000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Goodwill	3784000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Goodwill	13350000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Goodwill	14548000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Inventory, Net	16047000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Inventory, Net	17174000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Liabilities and Equity	131310000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Liabilities and Equity	162648000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Liabilities, Current	57883000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Liabilities, Current	68391000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Long-term Debt, Excluding Current Maturities	24743000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Excluding Current Maturities	23495000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Marketable Securities, Current	10464000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Marketable Securities, Current	9500000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Other Assets, Noncurrent	8897000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Assets, Noncurrent	11202000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Other Liabilities, Noncurrent	20975000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Liabilities, Noncurrent	27213000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Preferred Stock, Value, Issued	0	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Preferred Stock, Value, Issued	0	iso4217:USD	-6
43	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Property, Plant and Equipment, Net	29114000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Property, Plant and Equipment, Net	48866000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Property, Plant and Equipment, Net	61797000000	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Retained Earnings (Accumulated Deficit)	8636000000	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Retained Earnings (Accumulated Deficit)	19625000000	iso4217:USD	-6
48	0001018724 (http://www.sec.gov/CIK)	2015-12-31	null	Stockholders' Equity Attributable to Parent	13384000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Stockholders' Equity Attributable to Parent	19285000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Stockholders' Equity Attributable to Parent	27709000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Stockholders' Equity Attributable to Parent	43549000000	iso4217:USD	-6
52	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Treasury Stock, Value	1837000000	iso4217:USD	-6
53	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Treasury Stock, Value	1837000000	iso4217:USD	-6

Fact Table
Network	1004501 - Statement - Consolidated Balance Sheets (Parenthetical) (http://www.amazon.com/role/ConsolidatedBalanceSheetsParenthetical)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Common Stock, Par or Stated Value Per Share	0.01	iso4217:USD/xbrli:shares	INF
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Common Stock, Par or Stated Value Per Share	0.01	iso4217:USD/xbrli:shares	INF
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Common Stock, Shares Authorized	5000000000	xbrli:shares	INF
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Common Stock, Shares Authorized	5000000000	xbrli:shares	INF
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Common Stock, Shares, Issued	507000000	xbrli:shares	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Common Stock, Shares, Issued	514000000	xbrli:shares	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Common Stock, Shares, Outstanding	484000000	xbrli:shares	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Common Stock, Shares, Outstanding	491000000	xbrli:shares	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Preferred Stock, Par or Stated Value Per Share	0.01	iso4217:USD/xbrli:shares	INF
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Preferred Stock, Par or Stated Value Per Share	0.01	iso4217:USD/xbrli:shares	INF
11	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Preferred Stock, Shares Authorized	500000000	xbrli:shares	INF
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Preferred Stock, Shares Authorized	500000000	xbrli:shares	INF
13	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Preferred Stock, Shares Issued	0	xbrli:shares	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Preferred Stock, Shares Issued	0	xbrli:shares	-6
15	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Preferred Stock, Shares Outstanding	0	xbrli:shares	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF
17	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Preferred Stock, Shares Outstanding	0	xbrli:shares	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF

Fact Table
Network	1006000 - Statement - Consolidated Statements of Stockholders' Equity (http://www.amazon.com/role/ConsolidatedStatementsOfStockholdersEquity)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	829000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Additional Paid-in Capital [Member]	Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	829000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	687000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	687000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Cumulative Effect of New Accounting Principle in Period of Adoption	912000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-12-31	AOCI Attributable to Parent [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	-4000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Retained Earnings [Member]	Cumulative Effect of New Accounting Principle in Period of Adoption	916000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	2371000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Retained Earnings [Member]	Net Income (Loss) Attributable to Parent	2371000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	724000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	197000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	256000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	1856000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	3033000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Retained Earnings [Member]	Net Income (Loss) Attributable to Parent	3033000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	1629000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	2534000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	2883000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	3027000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Net Income (Loss) Attributable to Parent	10073000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Retained Earnings [Member]	Net Income (Loss) Attributable to Parent	10073000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Other Comprehensive Income (Loss), Net of Tax	-262000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	AOCI Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax	-262000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Other Comprehensive Income (Loss), Net of Tax	501000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	AOCI Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax	501000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Other Comprehensive Income (Loss), Net of Tax	-547000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	AOCI Attributable to Parent [Member]	Other Comprehensive Income (Loss), Net of Tax	-547000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2015-12-31	Common Stock [Member]	Shares, Outstanding	471000000	xbrli:shares	-6
29	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Common Stock [Member]	Shares, Outstanding	477000000	xbrli:shares	-6
30	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Common Stock [Member]	Shares, Outstanding	484000000	xbrli:shares	-6
31	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Common Stock [Member]	Shares, Outstanding	491000000	xbrli:shares	-6
32	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Common Stock [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	6000000	xbrli:shares	-6
33	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Common Stock [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	7000000	xbrli:shares	-6
34	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Common Stock [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	7000000	xbrli:shares	-6
35	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Stock Issued During Period, Value, Employee Benefit Plan	2962000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Additional Paid-in Capital [Member]	Stock Issued During Period, Value, Employee Benefit Plan	2962000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Stock Issued During Period, Value, Employee Benefit Plan	4202000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Additional Paid-in Capital [Member]	Stock Issued During Period, Value, Employee Benefit Plan	4202000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Stock Issued During Period, Value, Employee Benefit Plan	5402000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Additional Paid-in Capital [Member]	Stock Issued During Period, Value, Employee Benefit Plan	5402000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Equity Component [Domain]	Stock Issued During Period, Value, Stock Options Exercised	1000000	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Additional Paid-in Capital [Member]	Stock Issued During Period, Value, Stock Options Exercised	1000000	iso4217:USD	-6
43	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Equity Component [Domain]	Stock Issued During Period, Value, Stock Options Exercised	1000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Additional Paid-in Capital [Member]	Stock Issued During Period, Value, Stock Options Exercised	1000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Equity Component [Domain]	Stock Issued During Period, Value, Stock Options Exercised	0	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Additional Paid-in Capital [Member]	Stock Issued During Period, Value, Stock Options Exercised	0	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2015-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	13384000000	iso4217:USD	-6
48	0001018724 (http://www.sec.gov/CIK)	2015-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-723000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2015-12-31	Additional Paid-in Capital [Member]	Stockholders' Equity Attributable to Parent	13394000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2015-12-31	Common Stock [Member]	Stockholders' Equity Attributable to Parent	5000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2015-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	2545000000	iso4217:USD	-6
52	0001018724 (http://www.sec.gov/CIK)	2015-12-31	Treasury Stock [Member]	Stockholders' Equity Attributable to Parent	-1837000000	iso4217:USD	-6
53	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	19285000000	iso4217:USD	-6
54	0001018724 (http://www.sec.gov/CIK)	2016-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-985000000	iso4217:USD	-6
55	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Additional Paid-in Capital [Member]	Stockholders' Equity Attributable to Parent	17186000000	iso4217:USD	-6
56	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Common Stock [Member]	Stockholders' Equity Attributable to Parent	5000000	iso4217:USD	-6
57	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	4916000000	iso4217:USD	-6
58	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Treasury Stock [Member]	Stockholders' Equity Attributable to Parent	-1837000000	iso4217:USD	-6
59	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	27709000000	iso4217:USD	-6
60	0001018724 (http://www.sec.gov/CIK)	2017-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-484000000	iso4217:USD	-6
61	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Additional Paid-in Capital [Member]	Stockholders' Equity Attributable to Parent	21389000000	iso4217:USD	-6
62	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Common Stock [Member]	Stockholders' Equity Attributable to Parent	5000000	iso4217:USD	-6
63	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	8636000000	iso4217:USD	-6
64	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Treasury Stock [Member]	Stockholders' Equity Attributable to Parent	-1837000000	iso4217:USD	-6
65	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Equity Component [Domain]	Stockholders' Equity Attributable to Parent	43549000000	iso4217:USD	-6
66	0001018724 (http://www.sec.gov/CIK)	2018-12-31	AOCI Attributable to Parent [Member]	Stockholders' Equity Attributable to Parent	-1035000000	iso4217:USD	-6
67	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Additional Paid-in Capital [Member]	Stockholders' Equity Attributable to Parent	26791000000	iso4217:USD	-6
68	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Common Stock [Member]	Stockholders' Equity Attributable to Parent	5000000	iso4217:USD	-6
69	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Retained Earnings [Member]	Stockholders' Equity Attributable to Parent	19625000000	iso4217:USD	-6
70	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Treasury Stock [Member]	Stockholders' Equity Attributable to Parent	-1837000000	iso4217:USD	-6

Fact Table
Network	2101100 - Disclosure - Description of Business and Accounting Policies (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPolicies)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]

DESCRIPTION OF BUSINESS AND ACCOUNTING POLICIES

Description of Business

We seek to be Earth’s most customer-centric company. In each of our segments, we serve our primary customer sets, consisting of consumers, sellers, developers, enterprises, and content creators. We serve consumers through our online and physical stores and focus on selection, price, and convenience. We offer programs that enable sellers to sell their products in our stores and fulfill orders through us, and programs that allow authors, musicians, filmmakers, skill and app developers, and others to publish and sell content. We serve developers and enterprises of all sizes through our AWS segment, which offers a broad set of global compute, storage, database, and other service offerings. We also manufacture and sell electronic devices. In addition, we provide services, such as advertising.

We have organized our operations into three segments: North America, International, and AWS. See “Note 10 — Segment Information.”

Prior Period Reclassifications

Certain prior period amounts have been reclassified to conform to the current period presentation, including the addition of restricted cash to cash and cash equivalents on our consolidated statements of cash flows as a result of the adoption of new accounting guidance.

Principles of Consolidation

The consolidated financial statements include the accounts of Amazon.com, Inc., its wholly-owned subsidiaries, and those entities in which we have a variable interest and of which we are the primary beneficiary, including certain entities in India and China and that support our seller lending financing activities (collectively, the “Company”). Intercompany balances and transactions between consolidated entities are eliminated. The financial results of Whole Foods Market, Inc. (“Whole Foods Market”) have been included in our consolidated financial statements from the date of acquisition on August 28, 2017.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and related disclosures of contingent liabilities in the consolidated financial statements and accompanying notes. Estimates are used for, but not limited to, income taxes, commitments and contingencies, valuation of acquired intangibles and goodwill, stock-based compensation forfeiture rates, vendor funding, and inventory valuation. Actual results could differ materially from those estimates.

Earnings per Share

Basic earnings per share is calculated using our weighted-average outstanding common shares. Diluted earnings per share is calculated using our weighted-average outstanding common shares including the dilutive effect of stock awards as determined under the treasury stock method. In periods when we have a net loss, stock awards are excluded from our calculation of earnings per share as their inclusion would have an antidilutive effect.

The following table shows the calculation of diluted shares (in millions):



	Year Ended December 31,
	2016	2017	2018
Shares used in computation of basic earnings per share	474	480	487
Total dilutive effect of outstanding stock awards	10	13	13
Shares used in computation of diluted earnings per share	484	493	500

Revenue

Revenue is measured based on the amount of consideration that we expect to receive, reduced by estimates for return allowances, promotional discounts, and rebates. Revenue also excludes any amounts collected on behalf of third parties, including sales and indirect taxes. In arrangements where we have multiple performance obligations, the transaction price is allocated to each performance obligation using the relative stand-alone selling price. We generally determine stand-alone selling prices based on the prices charged to customers or using expected cost plus a margin.

A description of our principal revenue generating activities is as follows:

Retail sales - We offer consumer products through our online and physical stores. Revenue is recognized when control of the goods is transferred to the customer, which generally occurs upon our delivery to a third-party carrier or, in the case of an Amazon delivery, to the customer.

Third-party seller services - We offer programs that enable sellers to sell their products in our stores, and fulfill orders through us. We are not the seller of record in these transactions. The commissions and any related fulfillment and shipping fees we earn from these arrangements are recognized when the services are rendered, which generally occurs upon delivery of the related products to a third-party carrier or, in the case of an Amazon delivery, to the customer.

Subscription services - Our subscription sales include fees associated with Amazon Prime memberships and access to content including audiobooks, digital video, e-books, digital music, and other non-AWS subscription services. Prime memberships provide our customers with access to an evolving suite of benefits that represent a single stand-ready obligation. Subscriptions are paid for at the time of or in advance of delivering the services. Revenue from such arrangements is recognized over the subscription period.

AWS - Our AWS arrangements include global sales of compute, storage, database, and other services. Revenue is allocated to services using stand-alone selling prices and is primarily recognized when the customer uses these services, based on the quantity of services rendered, such as compute or storage capacity delivered on-demand. Certain services, including compute and database, are also offered as a fixed quantity over a specified term, for which revenue is recognized ratably. Sales commissions we pay in connection with contracts that exceed one year are capitalized and amortized over the contract term.

Other - Other revenue primarily includes sales of advertising services, which are recognized as ads are delivered based on the number of clicks or impressions.

Return Allowances

Return allowances, which reduce revenue and cost of sales, are estimated using historical experience. Liabilities for return allowances are included in “Accrued expenses and other” and were $567 million, $468 million, and $623 million as of December 31, 2016, 2017, and 2018. Additions to the allowance were $1.5 billion, $1.8 billion, and $2.3 billion and deductions from the allowance were $1.5 billion, $1.9 billion, and $2.3 billion in 2016, 2017, and 2018. Included in “Inventories” on our consolidated balance sheets are assets totaling $411 million, $406 million, and $519 million as of December 31, 2016, 2017, and 2018, for the rights to recover products from customers associated with our liabilities for return allowances.

Cost of Sales

Cost of sales primarily consists of the purchase price of consumer products, digital media content costs where we record revenue gross, including video and music, packaging supplies, sortation and delivery centers and related equipment costs, and inbound and outbound shipping costs, including where we are the transportation service provider. Shipping costs to receive products from our suppliers are included in our inventory, and recognized as cost of sales upon sale of products to our customers. Payment processing and related transaction costs, including those associated with seller transactions, are classified in “Fulfillment” on our consolidated statements of operations.

Vendor Agreements

We have agreements with our vendors to receive funds primarily for cooperative marketing efforts, promotions, incentives, and volume rebates. We generally consider these amounts received from vendors to be a reduction of the prices we pay for their goods, including property and equipment, or services, and are recorded as a reduction of the cost of inventory, cost of services, or cost of property and equipment. Volume rebates typically depend on reaching minimum purchase thresholds. We evaluate the likelihood of reaching purchase thresholds using past experience and current year forecasts. When volume rebates can be reasonably estimated, we record a portion of the rebate as we make progress towards the purchase threshold.

Fulfillment

Fulfillment costs primarily consist of those costs incurred in operating and staffing our North America and International segments’ fulfillment centers, customer service centers, and physical stores, including costs attributable to buying, receiving, inspecting, and warehousing inventories; picking, packaging, and preparing customer orders for shipment; payment processing and related transaction costs, including costs associated with our guarantee for certain seller transactions; responding to inquiries from customers; and supply chain management for our manufactured electronic devices. Fulfillment costs also include amounts paid to third parties that assist us in fulfillment and customer service operations.

Marketing

Marketing costs primarily consist of targeted online advertising, payroll and related expenses for personnel engaged in marketing and selling activities, and television advertising. We pay commissions to third parties when their customer referrals result in sales. We also participate in cooperative advertising arrangements with certain of our vendors, and other third parties.

Advertising and other promotional costs to market our products and services are expensed as incurred and were $5.0 billion, $6.3 billion, and $8.2 billion in 2016, 2017, and 2018. Prepaid advertising costs were not significant as of December 31, 2017 and 2018.

Technology and Content

Technology and content costs include payroll and related expenses for employees involved in the research and development of new and existing products and services, development, design, and maintenance of our stores, curation and display of products and services made available in our online stores, and infrastructure costs. Infrastructure costs include servers, networking equipment, and data center related depreciation, rent, utilities, and other expenses necessary to support AWS and other Amazon businesses. Collectively, these costs reflect the investments we make in order to offer a wide variety of products and services to our customers. Technology and content costs are generally expensed as incurred.

General and Administrative

General and administrative expenses primarily consist of payroll and related expenses; facilities and equipment expenses, such as depreciation expense and rent; professional fees and litigation costs; and other general corporate costs for corporate functions, including accounting, finance, tax, legal, and human resources, among others.

Stock-Based Compensation

Compensation cost for all stock awards expected to vest is measured at fair value on the date of grant and recognized over the service period. The fair value of restricted stock units is determined based on the number of shares granted and the quoted price of our common stock. Such value is recognized as expense over the service period, net of estimated forfeitures, using the accelerated method. The estimated number of stock awards that will ultimately vest requires judgment, and to the extent actual results or updated estimates differ from our current estimates, such amounts will be recorded as a cumulative adjustment in the period estimates are revised. We consider many factors when estimating expected forfeitures, including historical forfeiture experience and employee level.

Other Operating Expense, Net

Other operating expense, net, consists primarily of marketing-related, contract-based, and customer-related intangible asset amortization expense, and expenses related to legal settlements.

Other Income (Expense), Net

Other income (expense), net, consists primarily of foreign currency gains (losses) of $21 million, $247 million, and $(206) million in 2016, 2017, and 2018 and equity warrant valuation gains (losses) of $67 million, $109 million, and $(131) million in 2016, 2017, and 2018 and equity securities gains of $1 million, $18 million, and $145 million in 2016, 2017, and 2018.

Income Taxes

Income tax expense includes U.S. (federal and state) and foreign income taxes. Certain foreign subsidiary earnings are subject to U.S. taxation under the U.S. Tax Act, which also repeals U.S. taxation on the subsequent repatriation of those earnings. We intend to invest substantially all of our foreign subsidiary earnings, as well as our capital in our foreign subsidiaries, indefinitely outside of the U.S. in those jurisdictions in which we would incur significant, additional costs upon repatriation of such amounts.

Deferred income tax balances reflect the effects of temporary differences between the carrying amounts of assets and liabilities and their tax bases and are stated at enacted tax rates expected to be in effect when taxes are actually paid or recovered.

Deferred tax assets are evaluated for future realization and reduced by a valuation allowance to the extent we believe they will not be realized. We consider many factors when assessing the likelihood of future realization of our deferred tax assets, including our recent cumulative loss experience and expectations of future earnings, capital gains and investment in such jurisdiction, the carry-forward periods available to us for tax reporting purposes, and other relevant factors.

We utilize a two-step approach to recognizing and measuring uncertain income tax positions (tax contingencies). The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more likely than not the position will be sustained on audit, including resolution of related appeals or litigation processes. The second step is to measure the tax benefit as the largest amount which is more than 50% likely of being realized upon ultimate settlement. We consider many factors when evaluating our tax positions and estimating our tax benefits, which may require periodic adjustments and which may not accurately forecast actual outcomes. We include interest and penalties related to our tax contingencies in income tax expense.

Fair Value of Financial Instruments

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. To increase the comparability of fair value measures, the following hierarchy prioritizes the inputs to valuation methodologies used to measure fair value:

Level 1 — Valuations based on quoted prices for identical assets and liabilities in active markets.

Level 2 — Valuations based on observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3 — Valuations based on unobservable inputs reflecting our own assumptions, consistent with reasonably available assumptions made by other market participants. These valuations require significant judgment.

For our cash, cash equivalents, or marketable securities, we measure the fair value of money market funds and equity securities based on quoted prices in active markets for identical assets or liabilities. All other financial instruments were valued either based on recent trades of securities in inactive markets or based on quoted market prices of similar instruments and other significant inputs derived from or corroborated by observable market data. We did not hold any cash, cash equivalents, or marketable securities categorized as Level 3 assets as of December 31, 2017 and 2018.

As part of entering into commercial agreements, we often obtain equity warrant assets giving us the right to acquire stock of other companies. As of December 31, 2017 and 2018, these warrants had a fair value of $441 million and $440 million, and are recorded within “Other assets” on our consolidated balance sheets. The related gain (loss) recorded in “Other income (expense), net” was $67 million, $109 million, and $(131) million in 2016, 2017, and 2018. These assets are primarily classified as Level 2 assets.

Cash and Cash Equivalents

We classify all highly liquid instruments with an original maturity of three months or less as cash equivalents.

Inventories

Inventories, consisting of products available for sale, are primarily accounted for using the first-in, first-out method, and are valued at the lower of cost and net realizable value. This valuation requires us to make judgments, based on currently available information, about the likely method of disposition, such as through sales to individual customers, returns to product vendors, or liquidations, and expected recoverable values of each disposition category.

We provide Fulfillment by Amazon services in connection with certain of our sellers’ programs. Third-party sellers maintain ownership of their inventory, regardless of whether fulfillment is provided by us or the third-party sellers, and therefore these products are not included in our inventories.

We also purchase electronic device components from a variety of suppliers and use several contract manufacturers to provide manufacturing services for our products. During the normal course of business, in order to manage manufacturing lead times and help ensure adequate supply, we enter into agreements with contract manufacturers and suppliers for certain electronic device components. A portion of our reported purchase commitments arising from these agreements consists of firm, non-cancellable commitments. These commitments are based on forecasted customer demand. If we reduce these commitments, we may incur additional costs. We also have firm, non-cancellable commitments for certain products offered in our Whole Foods Market stores.

Accounts Receivable, Net and Other

Included in “Accounts receivable, net and other” on our consolidated balance sheets are amounts primarily related to customers, vendors, and sellers. As of December 31, 2017 and 2018, customer receivables, net, were $6.4 billion and $9.4 billion, vendor receivables, net, were $2.6 billion and $3.2 billion, and seller receivables, net, were $692 million and $710 million. Seller receivables are amounts due from sellers related to our seller lending program, which provides funding to sellers primarily to procure inventory.

We estimate losses on receivables based on known troubled accounts and historical experience of losses incurred. Receivables are considered impaired and written-off when it is probable that all contractual payments due will not be collected in accordance with the terms of the agreement. The allowance for doubtful accounts was $237 million, $348 million, and $495 million as of December 31, 2016, 2017, and 2018. Additions to the allowance were $451 million, $626 million, and $878 million, and deductions to the allowance were $403 million, $515 million, and $731 million in 2016, 2017, and 2018.

Software Development Costs

We incur software development costs related to products to be sold, leased, or marketed to external users, internal-use software, and our websites. Software development costs capitalized were not significant for the years presented. All other costs, including those related to design or maintenance, are expensed as incurred.

Property and Equipment, Net

Property and equipment are stated at cost less accumulated depreciation. Incentives that we receive from property and equipment vendors are recorded as a reduction in our costs. Property includes buildings and land that we own, along with property we have acquired under build-to-suit, finance, and capital lease arrangements. Equipment includes assets such as servers and networking equipment, heavy equipment, and other fulfillment equipment. Depreciation is recorded on a straight-line basis over the estimated useful lives of the assets (generally the lesser of 40 years or the remaining life of the underlying building, three years for our servers, five years for networking equipment, ten years for heavy equipment, and three to seven years for other fulfillment equipment). Depreciation expense is classified within the corresponding operating expense categories on our consolidated statements of operations.

Leases and Asset Retirement Obligations

We categorize leases at their inception as either operating or capital leases. On certain of our lease agreements, we may receive rent holidays and other incentives provided by the landlord. We recognize lease costs on a straight-line basis without regard to deferred payment terms, such as rent holidays, that defer the commencement date of required payments. Additionally, incentives we receive are treated as a reduction of our costs over the term of the agreement. Leasehold improvements are capitalized at cost and amortized over the lesser of their expected useful life or the non-cancellable term of the lease.

We establish assets and liabilities for the estimated construction costs incurred under build-to-suit lease arrangements to the extent we are involved in the construction of structural improvements or take construction risk prior to commencement of a lease. Upon occupancy of facilities under build-to-suit leases, we assess whether these arrangements qualify for sales recognition under the sale-leaseback accounting guidance. If we continue to be the deemed owner, the facilities are accounted for as finance leases.

We establish assets and liabilities for the present value of estimated future costs to retire long-lived assets at the termination or expiration of a lease. Such assets are depreciated over the lease period into operating expense, and the recorded liabilities are accreted to the future value of the estimated retirement costs.

As disclosed in “Accounting Pronouncements Not Yet Adopted,” our accounting for build-to-suit and finance leases will change on January 1, 2019.

Goodwill

We evaluate goodwill for impairment annually or more frequently when an event occurs or circumstances change that indicate the carrying value may not be recoverable. In testing goodwill for impairment, we may elect to utilize a qualitative assessment to evaluate whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If our qualitative assessment indicates that goodwill impairment is more likely than not, we perform a two-step impairment test. We test goodwill for impairment under the two-step impairment test by first comparing the book value of net assets to the fair value of the reporting units. If the fair value is determined to be less than the book value or qualitative factors indicate that it is more likely than not that goodwill is impaired, a second step is performed to compute the amount of impairment as the difference between the estimated fair value of goodwill and the carrying value. We estimate the fair value of the reporting units using discounted cash flows. Forecasts of future cash flows are based on our best estimate of future net sales and operating expenses, based primarily on expected category expansion, pricing, market segment share, and general economic conditions.

We completed the required annual testing of goodwill for impairment for all reporting units as of April 1, 2018, and determined that goodwill is not impaired as the fair value of our reporting units substantially exceeded their book value. There were no events that caused us to update our annual impairment test. See “Note 4 — Acquisitions, Goodwill, and Acquired Intangible Assets.”

Other Assets

Included in “Other assets” on our consolidated balance sheets are amounts primarily related to acquired intangible assets, net of accumulated amortization; video and music content, net of accumulated amortization; long-term deferred tax assets; certain equity investments; marketable securities restricted for longer than one year, the majority of which are attributable to collateralization of bank guarantees and debt related to our international operations; and equity warrant assets.

Video and Music Content

We obtain video and music content for customers through licensing agreements that have a wide range of licensing provisions, which include both fixed and variable payment schedules. When the license fee for a specific movie, television, or music title is determinable or reasonably estimable and the content is available for streaming, we recognize an asset representing the fee and a corresponding liability for the amounts owed. We relieve the liability as payments are made and we amortize the asset to “Cost of sales” on a straight-line basis or on an accelerated basis, based on estimated usage patterns, which typically ranges from one to five years. If we are unable to reasonably estimate the cost per title, no asset or liability is recorded and licensing costs are expensed as incurred. We also develop original content. Capitalized production costs associated with our original content are limited by the amount of revenue we expect to earn, which results in a portion being expensed as incurred. These capitalized costs are amortized to “Cost of sales” on an accelerated basis that follows the viewing pattern of customer streams in the first months after availability.

Investments

We generally invest our excess cash in AAA-rated money market funds and investment grade short- to intermediate-term fixed income securities. Such investments are included in “Cash and cash equivalents” or “Marketable securities” on the accompanying consolidated balance sheets. Marketable debt securities are classified as available-for-sale and reported at fair value with unrealized gains and losses included in “Accumulated other comprehensive loss.”

Equity investments are accounted for using the equity method of accounting if the investment gives us the ability to exercise significant influence, but not control, over an investee. Equity-method investments are included within “Other assets” on our consolidated balance sheets. Our share of the earnings or losses as reported by equity-method investees, amortization of basis differences, and related gains or losses, if any, are classified as “Equity-method investment activity, net of tax” on our consolidated statements of operations.

Equity investments without readily determinable fair values and for which we do not have the ability to exercise significant influence are accounted for at cost with adjustments for observable changes in prices or impairments and are classified as “Other assets” on our consolidated balance sheets.

Equity investments that have readily determinable fair values are included in “Marketable securities” on our consolidated balance sheets and measured at fair value with changes recognized in “Other income (expense), net” on our consolidated statement of operations.

We periodically evaluate whether declines in fair values of our investments indicate impairment. For debt securities and equity method investments, we also evaluate whether declines in fair value of our investments below their book value are other-than-temporary. This evaluation consists of several qualitative and quantitative factors regarding the severity and duration of the unrealized loss as well as our ability and intent to hold the investment until a forecasted recovery occurs. Additionally, we assess whether we have plans to sell the security or it is more likely than not we will be required to sell any investment before recovery of its amortized cost basis. Factors considered include: quoted market prices; recent financial results and operating trends; implied values from any recent transactions or offers of investee securities; credit quality of debt instrument issuers; other publicly available information that may affect the value of our investments; duration and severity of the decline in value; and our strategy and intentions for holding the investment.

Long-Lived Assets

Long-lived assets, other than goodwill, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets might not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable.

For long-lived assets used in operations, impairment losses are only recorded if the asset’s carrying amount is not recoverable through its undiscounted, probability-weighted future cash flows. We measure the impairment loss based on the difference between the carrying amount and estimated fair value. Long-lived assets are considered held for sale when certain criteria are met, including when management has committed to a plan to sell the asset, the asset is available for sale in its immediate condition, and the sale is probable within one year of the reporting date. Assets held for sale are reported at the lower of cost or fair value less costs to sell. Assets held for sale were not significant as of December 31, 2017 and 2018.

Accrued Expenses and Other

Included in “Accrued expenses and other” on our consolidated balance sheets are liabilities primarily related to leases and asset retirement obligations, payroll and related expenses, unredeemed gift cards, customer liabilities, current debt, acquired digital media content, and other operating expenses.

As of December 31, 2017 and 2018, our liabilities for payroll related expenses were $2.9 billion and $3.4 billion and our liabilities for unredeemed gift cards were $3.0 billion and $2.8 billion. We reduce the liability for a gift card when redeemed by a customer. The portion of gift cards that we do not expect to be redeemed is recognized based on customer usage patterns.

Unearned Revenue

Unearned revenue is recorded when payments are received or due in advance of performing our service obligations and is recognized over the service period. Unearned revenue primarily relates to prepayments of AWS services and Amazon Prime memberships. Our total unearned revenue as of December 31, 2017 was $6.1 billion, of which $5.3 billion was recognized as revenue during the year ended December 31, 2018, including adjustments related to the new revenue recognition guidance. Included in “Other long-term liabilities” on our consolidated balance sheets was $1.0 billion and $1.4 billion of unearned revenue as of December 31, 2017 and 2018.

Additionally, we have performance obligations, primarily related to AWS, associated with commitments in customer contracts for future services that have not yet been recognized in our financial statements. For contracts with original terms that exceed one year, those commitments not yet recognized were $19.3 billion as of December 31, 2018. The weighted average remaining life of our long-term contracts is 3.3 years. However, the amount and timing of revenue recognition is largely driven by customer usage, which can extend beyond the original contractual term.

Foreign Currency

We have internationally-focused stores for which the net sales generated, as well as most of the related expenses directly incurred from those operations, are denominated in local functional currencies. The functional currency of our subsidiaries that either operate or support these stores is generally the same as the local currency. Assets and liabilities of these subsidiaries are translated into U.S. Dollars at period-end foreign exchange rates, and revenues and expenses are translated at average rates prevailing throughout the period. Translation adjustments are included in “Accumulated other comprehensive loss,” a separate component of stockholders’ equity, and in the “Foreign currency effect on cash and cash equivalents,” on our consolidated statements of cash flows. Transaction gains and losses including intercompany transactions denominated in a currency other than the functional currency of the entity involved are included in “Other income (expense), net” on our consolidated statements of operations. In connection with the settlement and remeasurement of intercompany balances, we recorded gains (losses) of $62 million, $202 million, and $(186) million in 2016, 2017, and 2018.

Accounting Pronouncements Recently Adopted

In May 2014, the Financial Accounting Standards Board (“FASB”) issued an Accounting Standards Update (“ASU”) amending revenue recognition guidance and requiring more detailed disclosures to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. We adopted this ASU on January 1, 2018 for all revenue contracts with our customers using the modified retrospective approach and increased retained earnings by approximately $650 million. The adjustment primarily relates to the unredeemed portion of our gift cards, which are now recognized over the expected customer usage period rather than waiting until gift cards expire or when the likelihood of redemption becomes remote. We changed the recognition and classification of Amazon Prime memberships, which are now accounted for as a single performance obligation and recognized ratably over the membership period as service sales. Previously, Prime memberships were considered to be arrangements with multiple deliverables and were allocated among product sales and service sales. Other changes relate primarily to the presentation of revenue. Certain advertising services are now classified as revenue rather than a reduction in cost of sales, and sales of apps, in-app content, and certain digital media content are presented on a net basis. Prior year amounts have not been adjusted and continue to be reported in accordance with our historic accounting policy.

The impact of applying this ASU for the year ended December 31, 2018 primarily resulted in a decrease in product sales and an increase in service sales driven by the reclassification of Prime membership fees of approximately $3.8 billion. Service sales also increased by approximately $3.0 billion for the year ended December 31, 2018 due to the reclassification of certain advertising services.

In January 2016, the FASB issued an ASU that updates certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. Under this ASU, certain equity investments are measured at fair value with changes recognized in net income. We adopted this ASU in Q1 2018 with no material impact to our consolidated financial statements.

In October 2016, the FASB issued an ASU amending the accounting for income taxes. The new guidance requires the recognition of the income tax consequences of an intercompany asset transfer, other than transfers of inventory, when the transfer occurs. For intercompany transfers of inventory, the income tax effects will continue to be deferred until the inventory has been sold to a third party. We adopted this ASU in Q1 2018 with an increase of approximately $250 million to retained earnings and deferred tax assets net of valuation allowances.

In November 2016, the FASB issued an ASU amending the presentation of restricted cash within the consolidated statements of cash flows. The new guidance requires that restricted cash be added to cash and cash equivalents on the consolidated statements of cash flows. We adopted this ASU in Q1 2018 on a retrospective basis with the following impacts to our consolidated statements of cash flows (in millions):



Year Ended December 31, 2016	Previously Reported			Adjustments			As Revised
Operating activities	$	17,272		$	(69	)	$	17,203
Investing activities	(9,876		)	360			(9,516		)
Financing activities	(3,740		)	24			(3,716		)
Net change in cash, cash equivalents, and restricted cash	$	3,656		$	315		$	3,971



Year Ended December 31, 2017	Previously Reported			Adjustments			As Revised
Operating activities	$	18,434		$	(69	)	$	18,365
Investing activities	(27,819		)	735			(27,084		)
Financing activities	9,860			68			9,928
Net change in cash, cash equivalents, and restricted cash	$	475		$	734		$	1,209

Accounting Pronouncements Not Yet Adopted

In February 2016, the FASB issued an ASU amending the accounting for leases. The new guidance requires the recognition of lease assets and liabilities for operating leases with terms of more than 12 months, in addition to those currently recorded, on our consolidated balance sheets. Presentation of leases within the consolidated statements of operations and consolidated statements of cash flows will be generally consistent with the current lease accounting guidance. The ASU is effective for reporting periods beginning after December 15, 2018, with early adoption permitted. We will adopt this ASU on January 1, 2019 with an immaterial cumulative adjustment to retained earnings rather than retrospectively adjusting prior periods. This adoption approach will result in a balance sheet presentation that will not be comparable to the prior period in the first year of adoption. The adoption of this ASU will result in the recognition of operating lease assets and liabilities of approximately $21 billion, which includes the reclassification of finance leases to operating leases of approximately $1.2 billion, and the derecognition of build-to-suit lease assets and liabilities when we do not control the building during the construction period of approximately $1.5 billion.

Fact Table
Network	2102100 - Disclosure - Cash, Cash Equivalents, and Marketable Securities (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecurities)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Cash, Cash Equivalents, and Short-term Investments [Text Block]

CASH, CASH EQUIVALENTS, RESTRICTED CASH, AND MARKETABLE SECURITIES

As of December 31, 2017 and 2018, our cash, cash equivalents, restricted cash, and marketable securities primarily consisted of cash, AAA-rated money market funds, U.S. and foreign government and agency securities, and other investment grade securities. Cash equivalents and marketable securities are recorded at fair value. The following table summarizes, by major security type, our cash, cash equivalents, restricted cash, and marketable securities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy (in millions):



	December 31, 2017
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Total Estimated Fair Value
Cash	$	9,982	$	—	$	—		$	9,982
Level 1 securities:
Money market funds	11,343		—		—			11,343
Equity securities	23		30		—			53
Level 2 securities:
Foreign government and agency securities	620		—		—			620
U.S. government and agency securities	4,841		1		(19		)	4,823
Corporate debt securities	4,265		1		(9		)	4,257
Asset-backed securities	910		—		(5		)	905
Other fixed income securities	340		—		(2		)	338
	$	32,324	$	32	$	(35	)	$	32,321
Less: Restricted cash, cash equivalents, and marketable securities (1)								(1,335		)
Total cash, cash equivalents, and marketable securities								$	30,986



	December 31, 2018
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Total Estimated Fair Value
Cash	$	10,406	$	—	$	—		$	10,406
Level 1 securities:
Money market funds	12,515		—		—			12,515
Equity securities	29		143		(2		)	170
Level 2 securities:
Foreign government and agency securities	815		—		—			815
U.S. government and agency securities	11,686		1		(20		)	11,667
Corporate debt securities	5,008		1		(19		)	4,990
Asset-backed securities	896		—		(4		)	892
Other fixed income securities	190		—		(2		)	188
Equity securities	28		5		—			33
	$	41,573	$	150	$	(47	)	$	41,676
Less: Restricted cash, cash equivalents, and marketable securities (1)								(426		)
Total cash, cash equivalents, and marketable securities								$	41,250

___________________

(1)

We are required to pledge or otherwise restrict a portion of our cash, cash equivalents, and marketable securities as collateral for real estate leases, amounts due to third-party sellers in certain jurisdictions, debt, and standby and trade letters of credit. We classify cash, cash equivalents, and marketable securities with use restrictions of less than twelve months as “Accounts receivable, net and other” and of twelve months or longer as non-current “Other assets” on our consolidated balance sheets. See “Note 7 — Commitments and Contingencies.”

The following table summarizes gross gains and gross losses realized on sales of available-for-sale fixed income marketable securities (in millions):



	Year Ended December 31,
	2016		2017		2018
Realized gains	$	3	$	5	$	2
Realized losses	11		11		9

The following table summarizes the remaining contractual maturities of our cash equivalents and marketable fixed income securities as of December 31, 2018 (in millions):



	Amortized Cost		Estimated Fair Value
Due within one year	$	27,520	$	27,508
Due after one year through five years	2,865		2,845
Due after five years through ten years	187		185
Due after ten years	538		529
Total	$	31,110	$	31,067

Actual maturities may differ from the contractual maturities because borrowers may have certain prepayment conditions.

The following table provides a reconciliation of the amount of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets to the total of the same such amounts shown in the consolidated statements of cash flows (in millions):



	December 31, 2017		December 31, 2018
Cash and cash equivalents	$	20,522	$	31,750
Restricted cash included in accounts receivable, net and other	1,329		418
Restricted cash included in other assets	5		5
Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows	$	21,856	$	32,173

Fact Table
Network	2103100 - Disclosure - Property and Equipment (http://www.amazon.com/role/PropertyAndEquipment)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Property, Plant and Equipment Disclosure [Text Block]

PROPERTY AND EQUIPMENT

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



	December 31,
	2017		2018
Gross property and equipment (1):
Land and buildings	$	23,896	$	31,741
Equipment	42,244		54,591
Other assets	2,438		2,577
Construction in progress	4,078		6,861
Gross property and equipment	72,656		95,770
Total accumulated depreciation and amortization (1)	23,790		33,973
Total property and equipment, net	$	48,866	$	61,797

___________________


(1)	We revised our prior year presentation of gross property and equipment and total accumulated depreciation and amortization to include all property and equipment in service, including equipment which is fully-depreciated, to conform to the current year presentation. Total property and equipment, net remains unchanged for the prior year.

Depreciation expense on property and equipment was $6.4 billion, $8.8 billion, and $12.1 billion which includes amortization of property and equipment acquired under capital leases of $3.8 billion, $5.4 billion, and $7.3 billion for 2016, 2017, and 2018. Gross assets recorded under capital leases were $26.4 billion and $36.1 billion as of December 31, 2017 and 2018. Accumulated amortization associated with capital leases was $13.4 billion and $19.8 billion as of December 31, 2017 and 2018.

We capitalize construction in progress and record a corresponding long-term liability for build-to-suit lease agreements where we are considered the owner, for accounting purposes, during the construction period. For buildings under build-to-suit lease arrangements where we have taken occupancy, which do not qualify for sales recognition under the sale-leaseback accounting guidance, we determined that we continue to be the deemed owner of these buildings. This is principally due to our significant investment in tenant improvements. As a result, the buildings are being depreciated over the shorter of their useful lives or the related leases’ terms. Additionally, certain build-to-suit lease arrangements and finance leases provide purchase options. Upon occupancy, the long-term construction obligations are considered long-term finance lease obligations with amounts payable during the next 12 months recorded as “Accrued expenses and other.” Gross assets remaining under finance leases were $5.4 billion and $7.5 billion as of December 31, 2017 and 2018. Accumulated amortization associated with finance leases was $635 million and $1.1 billion as of December 31, 2017 and 2018. As disclosed in “Note 1 — Description of Business and Accounting Policies,” our accounting for build-to-suit and finance leases will change on January 1, 2019.

Fact Table
Network	2104100 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssets)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Business Combination Disclosure [Text Block]

ACQUISITIONS, GOODWILL, AND ACQUIRED INTANGIBLE ASSETS

2016 Acquisition Activity

During 2016, we acquired certain companies for an aggregate purchase price of $103 million. The primary reason for these acquisitions, none of which were individually material to our consolidated financial statements, was to acquire technologies and know-how to enable Amazon to serve customers more effectively.

2017 Acquisition Activity

On May 12, 2017, we acquired Souq Group Ltd. (“Souq”), an e-commerce company, for approximately $583 million, net of cash acquired, and on August 28, 2017, we acquired Whole Foods Market, a grocery store chain, for approximately $13.2 billion, net of cash acquired. Both acquisitions are intended to expand our retail presence. During 2017, we also acquired certain other companies for an aggregate purchase price of $204 million. The primary reason for our other 2017 acquisitions was to acquire technologies and know-how to enable Amazon to serve customers more effectively.

2018 Acquisition Activity

On April 12, 2018, we acquired Ring Inc. (“Ring”) for cash consideration of approximately $839 million, net of cash acquired, and on September 11, 2018, we acquired PillPack, Inc. (“PillPack”) for cash consideration of approximately $753 million, net of cash acquired, to expand our product and service offerings. During 2018, we also acquired certain other companies for an aggregate purchase price of $57 million. The primary reason for our other 2018 acquisitions was to acquire technologies and know-how to enable Amazon to serve customers more effectively.

Acquisition-related costs were expensed as incurred and were not significant.

Pro forma results of operations have not been presented because the effects of these acquisitions, individually and in the aggregate, were not material to our consolidated results of operations.

Purchase Price Allocation

The aggregate purchase price of these acquisitions was allocated as follows (in millions):



	December 31,
	2016			2017			2018

Purchase Price
Cash paid, net of cash acquired	$	81		$	13,859		$	1,618
Indemnification holdback	22			104			31
	$	103		$	13,963		$	1,649
Allocation
Goodwill	$	60		$	9,501		$	1,228
Intangible assets (1):
Marketing-related	2			1,987			186
Contract-based	1			440			13
Technology-based	53			166			285
Customer-related	1			54			193
	57			2,647			677
Property and equipment	3			3,810			11
Deferred tax assets	17			117			174
Other assets acquired	10			1,858			282
Long-term debt	(5		)	(1,165		)	(176		)
Deferred tax liabilities	(18		)	(961		)	(159		)
Other liabilities assumed	(21		)	(1,844		)	(388		)
	$	103		$	13,963		$	1,649

___________________


(1)	Intangible assets acquired in 2016, 2017, and 2018 have estimated useful lives of between one and seven years, one and twenty-five years, and two and seven years, with weighted-average amortization periods of five years, twenty-one years, and six years.

We determined the estimated fair value of identifiable intangible assets acquired primarily by using the income approach. These assets are included within “Other assets” on our consolidated balance sheets and are being amortized to operating expenses on a straight-line basis over their estimated useful lives.

Goodwill

The goodwill of the acquired companies is primarily related to expected improvements in technology performance and functionality, as well as sales growth from future product and service offerings and new customers, together with certain intangible assets that do not qualify for separate recognition. The goodwill of the acquired companies is generally not deductible for tax purposes. The following summarizes our goodwill activity in 2017 and 2018 by segment (in millions):



	North America			International			AWS			Consolidated
Goodwill - January 1, 2017	$	2,044		$	694		$	1,046		$	3,784
New acquisitions (1)	9,115			368			18			9,501
Other adjustments (2)	6			46			13			65
Goodwill - December 31, 2017	11,165			1,108			1,077			13,350
New acquisitions (1)	1,031			177			20			1,228
Other adjustments (2)	(5		)	(15		)	(10		)	(30		)
Goodwill - December 31, 2018	$	12,191		$	1,270		$	1,087		$	14,548

___________________


(1)	Primarily includes the acquisition of Whole Foods Market in the North America segment and Souq in the International segment in 2017 and the acquisitions of Ring and PillPack in the North America segment in 2018.


(2)	Primarily includes changes in foreign exchange rates.

Intangible Assets

Acquired intangible assets, included within “Other assets” on our consolidated balance sheets, consist of the following (in millions):



	December 31,
	2017							2018
	Acquired Intangibles, Gross (1)		Accumulated Amortization (1)			Acquired Intangibles, Net		Acquired Intangibles, Gross (1)		Accumulated Amortization (1)			Acquired Intangibles, Net		Weighted Average Life Remaining
Marketing-related	$	2,486	$	(418	)	$	2,068	$	2,542	$	(431	)	$	2,111	21.2
Contract-based	1,013		(213		)	800		1,430		(224		)	1,206		12.3
Technology- and content-based	640		(252		)	388		941		(377		)	564		4.6
Customer-related	283		(168		)	115		437		(208		)	229		4.4
Acquired intangibles (2)	$	4,422	$	(1,051	)	$	3,371	$	5,350	$	(1,240	)	$	4,110	15.4

___________________


(1)	Excludes the original cost and accumulated amortization of fully-amortized intangibles.


(2)	Intangible assets have estimated useful lives of between one and twenty-five years.

Amortization expense for acquired intangibles was $287 million, $366 million, and $475 million in 2016, 2017, and 2018. Expected future amortization expense of acquired intangible assets as of December 31, 2018 is as follows (in millions):



Year Ended December 31,
2019	$	511
2020	412
2021	355
2022	323
2023	270
Thereafter	2,217
	$	4,088

Fact Table
Network	2105100 - Disclosure - Long-Term Debt (http://www.amazon.com/role/LongTermDebt)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Debt Disclosure [Text Block]

DEBT

As of December 31, 2018, we had $24.3 billion of unsecured senior notes outstanding (the “Notes”). As of December 31, 2017 and 2018, the net unamortized discount and debt issuance costs on the Notes was $99 million and $101 million. We also have other long-term debt with a carrying amount, including the current portion and borrowings under our credit facility, of $692 million and $715 million as of December 31, 2017 and 2018. The face value of our total long-term debt obligations is as follows (in millions):



	December 31,
	2017			2018
2.600% Notes due on December 5, 2019 (2)	1,000			1,000
1.900% Notes due on August 21, 2020 (3)	1,000			1,000
3.300% Notes due on December 5, 2021 (2)	1,000			1,000
2.500% Notes due on November 29, 2022 (1)	1,250			1,250
2.400% Notes due on February 22, 2023 (3)	1,000			1,000
2.800% Notes due on August 22, 2024 (3)	2,000			2,000
3.800% Notes due on December 5, 2024 (2)	1,250			1,250
5.200% Notes due on December 3, 2025 (4)	1,000			1,000
3.150% Notes due on August 22, 2027 (3)	3,500			3,500
4.800% Notes due on December 5, 2034 (2)	1,250			1,250
3.875% Notes due on August 22, 2037 (3)	2,750			2,750
4.950% Notes due on December 5, 2044 (2)	1,500			1,500
4.050% Notes due on August 22, 2047 (3)	3,500			3,500
4.250% Notes due on August 22, 2057 (3)	2,250			2,250
Credit Facility	592			594
Other long-term debt	100			121
Total debt	24,942			24,965
Less current portion of long-term debt	(100		)	(1,371		)
Face value of long-term debt	$	24,842		$	23,594

_____________________________


(1)	Issued in November 2012, effective interest rate of the 2022 Notes was 2.66%.


(2)	Issued in December 2014, effective interest rates of the 2019, 2021, 2024, 2034, and 2044 Notes were 2.73%, 3.43%, 3.90%, 4.92%, and 5.11%.


(3)	Issued in August 2017, effective interest rates of the 2020, 2023, 2024, 2027, 2037, 2047, and 2057 Notes were 2.16%, 2.56%, 2.95%, 3.25%, 3.94%, 4.13%, and 4.33%.


(4)	Consists of $872 million of 2025 Notes issued in December 2017 in exchange for notes assumed in connection with the acquisition of Whole Foods Market and $128 million of 2025 Notes issued by Whole Foods Market that did not participate in our December 2017 exchange offer. The effective interest rate of the 2025 Notes was 3.02%.

Interest on the Notes issued in 2012 is payable semi-annually in arrears in May and November. Interest on the Notes issued in 2014 is payable semi-annually in arrears in June and December. Interest on the Notes issued in 2017 is payable semi-annually in arrears in February and August. Interest on the 2025 Notes is payable semi-annually in arrears in June and December. We may redeem the Notes at any time in whole, or from time to time, in part at specified redemption prices. We are not subject to any financial covenants under the Notes. The proceeds from the November 2012 and the December 2014 Notes were used for general corporate purposes. The proceeds from the August 2017 Notes were used to fund the consideration for the acquisition of Whole Foods Market, to repay notes due in 2017, and for general corporate purposes. The estimated fair value of the Notes was approximately $25.7 billion and $24.3 billion as of December 31, 2017 and 2018, which is based on quoted prices for our debt as of those dates.

In October 2016, we entered into a $500 million secured revolving credit facility with a lender that is secured by certain seller receivables, which we subsequently increased to $620 million and may from time to time increase in the future subject to lender approval (the “Credit Facility”). The Credit Facility is available for a term of three years, bears interest at the London interbank offered rate (“LIBOR”) plus 1.65%, and has a commitment fee of 0.50% on the undrawn portion. There were $592 million and $594 million of borrowings outstanding under the Credit Facility as of December 31, 2017 and 2018, which had a weighted-average interest rate of 2.7% and 3.2% as of December 31, 2017 and 2018. As of December 31, 2017 and 2018, we have pledged $686 million of our cash and seller receivables as collateral for debt related to our Credit Facility. The estimated fair value of the Credit Facility, which is based on Level 2 inputs, approximated its carrying value as of December 31, 2017 and 2018.

The other debt, including the current portion, had a weighted-average interest rate of 5.8% and 6.0% as of December 31, 2017 and 2018. We used the net proceeds from the issuance of this debt primarily to fund certain business operations. The estimated fair value of the other long-term debt, which is based on Level 2 inputs, approximated its carrying value as of December 31, 2017 and 2018.

As of December 31, 2018, future principal payments for our total debt were as follows (in millions):



Year Ended December 31,
2019	$	1,371
2020	1,298
2021	1,016
2022	1,266
2023	1,014
Thereafter	19,000
	$	24,965

In April 2018, we established a commercial paper program (the “Commercial Paper Program”) under which we may from time to time issue unsecured commercial paper up to a total of $7.0 billion at any time, with individual maturities that may vary but will not exceed 397 days from the date of issue. There were no borrowings outstanding under the Commercial Paper Program as of December 31, 2018.

In April 2018, in connection with our Commercial Paper Program, we amended and restated our unsecured revolving credit facility (the “Credit Agreement”) with a syndicate of lenders to increase our borrowing capacity thereunder to $7.0 billion. As amended and restated, the Credit Agreement has a term of three years, but it may be extended for up to three additional one-year terms if approved by the lenders. The interest rate applicable to outstanding balances under the amended and restated Credit Agreement is LIBOR plus 0.50%, with a commitment fee of 0.04% on the undrawn portion of the credit facility. There were no borrowings outstanding under the Credit Agreement as of December 31, 2017 and 2018.

Fact Table
Network	2106100 - Disclosure - Other Long-Term Liabilities (http://www.amazon.com/role/OtherLongTermLiabilities)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Other Liabilities Disclosure [Text Block]

OTHER LONG-TERM LIABILITIES

Our other long-term liabilities are summarized as follows (in millions):



	December 31,
	2017		2018
Long-term capital lease obligations	$	8,438	$	9,650
Long-term finance lease obligations	4,745		6,642
Construction liabilities	1,350		2,516
Tax contingencies	1,004		896
Long-term deferred tax liabilities	990		1,490
Other	4,448		6,019
Total other long-term liabilities	$	20,975	$	27,213

Capital and Finance Leases

Certain of our equipment, primarily related to technology infrastructure, and buildings have been acquired under capital leases. Long-term capital lease obligations are as follows (in millions):



	December 31, 2018
Gross capital lease obligations	$	17,952
Less imputed interest	(582		)
Present value of net minimum lease payments	17,370
Less current portion of capital lease obligations	(7,720		)
Total long-term capital lease obligations	$	9,650

We continue to be the deemed owner after occupancy of certain facilities that were constructed as build-to-suit lease arrangements and previously reflected as “Construction liabilities.” As such, these arrangements are accounted for as finance leases. Long-term finance lease obligations are as follows (in millions):



	December 31, 2018
Gross finance lease obligations	$	8,376
Less imputed interest	(1,323		)
Present value of net minimum lease payments	7,053
Less current portion of finance lease obligations	(411		)
Total long-term finance lease obligations	$	6,642

As disclosed in “Note 1 — Description of Business and Accounting Policies,” our accounting for build-to-suit and finance leases will change on January 1, 2019.

Construction Liabilities

We capitalize construction in progress and record a corresponding long-term liability for build-to-suit lease agreements where we are considered the owner during the construction period for accounting purposes. These liabilities primarily relate to our corporate buildings and fulfillment, sortation, delivery, and data centers. As disclosed in “Note 1 — Description of Business and Accounting Policies,” our accounting for build-to-suit and finance leases will change on January 1, 2019.

Tax Contingencies

We have recorded reserves for tax contingencies, inclusive of accrued interest and penalties, for U.S. and foreign income taxes. These reserves primarily relate to transfer pricing and state income taxes, and are presented net of offsetting deferred tax assets related to net operating losses and tax credits. See “Note 9 — Income Taxes” for discussion of tax contingencies.

Fact Table
Network	2107100 - Disclosure - Commitments and Contingencies (http://www.amazon.com/role/CommitmentsAndContingencies)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Commitments and Contingencies Disclosure [Text Block]

COMMITMENTS AND CONTINGENCIES

Commitments

We have entered into non-cancellable operating, capital, and finance leases for equipment and office, fulfillment, sortation, delivery, data center, physical store, and renewable energy facilities. Rental expense under operating lease agreements was $1.4 billion, $2.2 billion, and $3.4 billion for 2016, 2017, and 2018.

The following summarizes our principal contractual commitments, excluding open orders for purchases that support normal operations and are generally cancellable, as of December 31, 2018 (in millions):



	Year Ended December 31,
	2019		2020		2021		2022		2023		Thereafter		Total
Debt principal and interest	$	2,277	$	2,161	$	1,861	$	2,078	$	1,781	$	30,013	$	40,171
Capital lease obligations, including interest (1)	7,807		5,742		2,725		704		473		501		17,952
Finance lease obligations, including interest (2)	628		640		652		664		675		5,117		8,376
Operating leases	3,127		3,070		2,775		2,473		2,195		13,026		26,666
Unconditional purchase obligations (3)	3,523		4,103		3,291		3,098		2,974		5,204		22,193
Other commitments (4) (5)	2,618		1,455		1,056		843		808		8,875		15,655
Total commitments	$	19,980	$	17,171	$	12,360	$	9,860	$	8,906	$	62,736	$	131,013

___________________


(1)	Excluding interest, current capital lease obligations of $5.8 billion and $7.7 billion are recorded within “Accrued expenses and other” as of December 31, 2017 and 2018, and $8.4 billion and $9.6 billion are recorded within “Other long-term liabilities” as of December 31, 2017 and 2018.


(2)	Excluding interest, current finance lease obligations of $282 million and $411 million are recorded within “Accrued expenses and other” as of December 31, 2017 and 2018, and $4.7 billion and $6.6 billion are recorded within “Other long-term liabilities” as of December 31, 2017 and 2018.

(3)

Includes unconditional purchase obligations related to certain products offered in our Whole Foods Market stores and long-term agreements to acquire and license digital media content that are not reflected on the consolidated balance sheets. For those digital media content agreements with variable terms, we do not estimate the total obligation beyond any minimum quantities and/or pricing as of the reporting date. Purchase obligations associated with renewal provisions solely at the option of the content provider are included to the extent such commitments are fixed or a minimum amount is specified.


(4)	Includes the estimated timing and amounts of payments for rent and tenant improvements associated with build-to-suit lease arrangements and equipment lease arrangements that have not been placed in service and digital media content liabilities associated with long-term digital media content assets with initial terms greater than one year.


(5)	Excludes approximately $3.4 billion of accrued tax contingencies for which we cannot make a reasonably reliable estimate of the amount and period of payment, if any.

Pledged Assets

As of December 31, 2017 and 2018, we have pledged or otherwise restricted $1.4 billion and $575 million of our cash, cash equivalents, and marketable securities, and certain property and equipment as collateral for real estate leases, amounts due to third-party sellers in certain jurisdictions, debt, and standby and trade letters of credit.

Suppliers

During 2018, no vendor accounted for 10% or more of our purchases. We generally do not have long-term contracts or arrangements with our vendors to guarantee the availability of merchandise, particular payment terms, or the extension of credit limits.

Other Contingencies

In 2016, we determined that we processed and delivered orders of consumer products for certain individuals and entities located outside Iran covered by the Iran Threat Reduction and Syria Human Rights Act or other United States sanctions and export control laws. The consumer products included books, music, other media, apparel, home and kitchen, health and beauty, jewelry, office, consumer electronics, software, lawn and patio, grocery, and automotive products. Our review is ongoing and we have voluntarily reported these orders to the United States Treasury Department’s Office of Foreign Assets Control and the United States Department of Commerce’s Bureau of Industry and Security. We intend to cooperate fully with OFAC and BIS with respect to their review, which may result in the imposition of penalties. For additional information, see Item 9B of Part II, “Other Information — Disclosure Pursuant to Section 13(r) of the Exchange Act.”

We are subject to claims related to various indirect taxes (such as sales, value added, consumption, service, and similar taxes), including in jurisdictions in which we already collect and remit such taxes. If the relevant taxing authorities were successfully to pursue these claims, we could be subject to significant additional tax liabilities. For example, in June 2017, the State of South Carolina issued an assessment for uncollected sales and use taxes for the period from January 2016 to March 2016, including interest and penalties. South Carolina is alleging that we should have collected sales and use taxes on transactions by our third-party sellers. We believe the assessment is without merit. If South Carolina or other states were successfully to seek additional adjustments of a similar nature, we could be subject to significant additional tax liabilities. We intend to defend ourselves vigorously in this matter.

Legal Proceedings

The Company is involved from time to time in claims, proceedings, and litigation, including the following:

In November 2007, an Austrian copyright collection society, Austro-Mechana, filed lawsuits against Amazon.com International Sales, Inc., Amazon EU S.à r.l., Amazon.de GmbH, Amazon.com GmbH, and Amazon Logistik in the Commercial Court of Vienna, Austria and in the District Court of Munich, Germany seeking to collect a tariff on blank digital media sold by our EU-based retail websites to customers located in Austria. In July 2008, the German court stayed the German case pending a final decision in the Austrian case. In July 2010, the Austrian court ruled in favor of Austro-Mechana and ordered us to report all sales of products to which the tariff potentially applies for a determination of damages. We contested Austro-Mechana’s claim and in September 2010 commenced an appeal in the Commercial Court of Vienna. We lost this appeal and in March 2011 commenced an appeal in the Supreme Court of Austria. In October 2011, the Austrian Supreme Court referred the case to the European Court of Justice (“ECJ”). In July 2013, the ECJ ruled that EU law does not preclude application of the tariff where certain conditions are met and directed the case back to the Austrian Supreme Court for further proceedings. In October 2013, the Austrian Supreme Court referred the case back to the Commercial Court of Vienna for further fact finding to determine whether the tariff on blank digital media meets the conditions set by the ECJ. In August 2015, the Commercial Court of Vienna ruled that the Austrian tariff regime does not meet the conditions the ECJ set and dismissed Austro-Mechana’s claims. In September 2015, Austro-Mechana appealed that judgment to the Higher Commercial Court of Vienna. In December 2015, the Higher Commercial Court of Vienna confirmed that the Austrian tariff regime does not meet the conditions the ECJ set and dismissed Austro-Mechana’s appeal. In February 2016, Austro-Mechana appealed that judgment to the Austrian Supreme Court. In March 2017, the Austrian Supreme Court ruled in favor of Austro-Mechana and referred the case back to the Commercial Court of Vienna for further proceedings. A number of additional actions have been filed making similar allegations. In December 2012, a German copyright collection society, Zentralstelle für private Überspielungsrechte (“ZPU”), filed a complaint against Amazon EU S.à r.l., Amazon Media EU S.à r.l., Amazon Services Europe S.à r.l., Amazon Payments Europe SCA, Amazon Europe Holding Technologies SCS, and Amazon Eurasia Holdings S.à r.l. in the District Court of Luxembourg seeking to collect a tariff on blank digital media sold by the Amazon.de retail website to customers located in Germany. In January 2013, a Belgian copyright collection society, AUVIBEL, filed a complaint against Amazon EU S.à r.l. in the Court of First Instance of Brussels, Belgium, seeking to collect a tariff on blank digital media sold by the Amazon.fr retail website to customers located in Belgium. In November 2013, the Belgian court ruled in favor of AUVIBEL and ordered us to report all sales of products to which the tariff potentially applies for a determination of damages. We dispute the allegations of wrongdoing and intend to defend ourselves vigorously in these matters.

Beginning in August 2013, a number of complaints were filed alleging, among other things, that Amazon.com, Inc. and several of its subsidiaries failed to compensate hourly workers for time spent waiting in security lines and otherwise violated federal and state wage and hour statutes and common law. In August 2013, Busk v. Integrity Staffing Solutions, Inc. and Amazon.com, Inc. was filed in the United States District Court for the District of Nevada, and Vance v. Amazon.com, Inc., Zappos.com Inc., another affiliate of Amazon.com, Inc., and Kelly Services, Inc. was filed in the United States District Court for the Western District of Kentucky. In September 2013, Allison v. Amazon.com, Inc. and Integrity Staffing Solutions, Inc. was filed in the United States District Court for the Western District of Washington, and Johnson v. Amazon.com, Inc. and an affiliate of Amazon.com, Inc. was filed in the United States District Court for the Western District of Kentucky. In October 2013, Davis v. Amazon.com, Inc., an affiliate of Amazon.com, Inc., and Integrity Staffing Solutions, Inc. was filed in the United States District Court for the Middle District of Tennessee. The plaintiffs variously purport to represent a nationwide class of certain current and former employees under the Fair Labor Standards Act and/or state-law-based subclasses for certain current and former employees in states including Arizona, California, Pennsylvania, South Carolina, Kentucky, Washington, and Nevada, and one complaint asserts nationwide breach of contract and unjust enrichment claims. The complaints seek an unspecified amount of damages, interest, injunctive relief, and attorneys’ fees. We have been named in several other similar cases. In December 2014, the Supreme Court ruled in Busk that time spent waiting for and undergoing security screening is not compensable working time under the federal wage and hour statute. In February 2015, the courts in those actions alleging only federal law claims entered stipulated orders dismissing those actions without prejudice. In March 2016, the United States District Court for the Western District of Kentucky dismissed the Vance case with prejudice. In April 2016, the plaintiffs appealed the district court’s judgment to the United States Court of Appeals for the Federal Circuit. In March 2017, the court of appeals affirmed the district court’s decision. In June 2017, the United States District Court for the Western District of Kentucky dismissed the Busk and Saldana cases with prejudice. We dispute any remaining allegations of wrongdoing and intend to defend ourselves vigorously in these matters.

In March 2015, Zitovault, LLC filed a complaint against Amazon.com, Inc., Amazon.com, LLC, Amazon Web Services, Inc., and Amazon Web Services, LLC for patent infringement in the United States District Court for the Eastern District of Texas. The complaint alleges that Elastic Compute Cloud, Virtual Private Cloud, Elastic Load Balancing, Auto-Scaling, and Elastic Beanstalk infringe U.S. Patent No. 6,484,257, entitled “System and Method for Maintaining N Number of Simultaneous Cryptographic Sessions Using a Distributed Computing Environment.” The complaint seeks injunctive relief, an unspecified amount of damages, enhanced damages, attorneys’ fees, costs, and interest. In January 2016, the case was transferred to the United States District Court for the Western District of Washington. In June 2016, the case was stayed pending resolution of a review petition we filed with the United States Patent and Trademark Office. In January 2019, the stay of the case was lifted following resolution of the review petition. We dispute the allegations of wrongdoing and intend to defend ourselves vigorously in this matter.

In November 2015, Eolas Technologies, Inc. filed a complaint against Amazon.com, Inc. in the United States District Court for the Eastern District of Texas. The complaint alleges, among other things, that the use of “interactive features” on www.amazon.com, including “search suggestions and search results,” infringes U.S. Patent No. 9,195,507, entitled “Distributed Hypermedia Method and System for Automatically Invoking External Application Providing Interaction and Display of Embedded Objects Within A Hypermedia Document.” The complaint sought a judgment of infringement together with costs and attorneys’ fees. In February 2016, Eolas filed an amended complaint seeking, among other things, an unspecified amount of damages. In February 2017, Eolas alleged in its damages report that in the event of a finding of liability Amazon could be subject to $130-$250 million in damages. In April 2017, the case was transferred to the United States District Court for the Northern District of California. We dispute the allegations of wrongdoing and intend to defend ourselves vigorously in this matter.

In October 2017, SRC Labs, LLC and Saint Regis Mohawk Tribe filed a complaint for patent infringement against Amazon Web Services, Inc., Amazon.com, Inc., and VADATA, Inc. in the United States District Court for the Eastern District of Virginia. The complaint alleges, among other things, that certain AWS EC2 Instances infringe U.S. Patent Nos. 6,434,687, entitled “System and method for accelerating web site access and processing utilizing a computer system incorporating reconfigurable processors operating under a single operating system image”; 7,149,867, entitled “System and method of enhancing efficiency and utilization of memory bandwidth in reconfigurable hardware”; 7,225,324 and 7,620,800, both entitled “Multi-adaptive processing systems and techniques for enhancing parallelism and performance of computational functions”; and 9,153,311, entitled “System and method for retaining DRAM data when reprogramming reconfigurable devices with DRAM memory controllers.” The complaint seeks an unspecified amount of damages, enhanced damages, interest, and a compulsory on-going royalty. In February 2018, the Virginia district court transferred the case to the United States District Court for the Western District of Washington. In November 2018, the case was stayed pending resolution of eight review petitions filed with the United States Patent and Trademark Office relating to the ‘324, ‘867, and ‘311 patents. We dispute the allegations of wrongdoing and intend to defend ourselves vigorously in this matter.

In May 2018, Rensselaer Polytechnic Institute and CF Dynamic Advances LLC filed a complaint against Amazon.com, Inc. in the United States District Court for the Northern District of New York. The complaint alleges, among other things, that “Alexa Voice Software and Alexa enabled devices” infringe U.S. Patent No. 7,177,798, entitled “Natural Language Interface Using Constrained Intermediate Dictionary of Results.” The complaint seeks an injunction, an unspecified amount of damages, enhanced damages, an ongoing royalty, pre- and post-judgment interest, attorneys’ fees, and costs. We dispute the allegations of wrongdoing and intend to defend ourselves vigorously in this matter.

In June 2018, VoIP-Pal.com, Inc. filed a complaint against Amazon Technologies, Inc. and Amazon.com, Inc. in the United States District Court for the District of Nevada. The complaint alleges, among other things, that the Alexa calling and messaging system, the Alexa app, and Echo, Tap, and Fire devices with Alexa support infringe U.S. Patent Nos. 9,537,762; 9,813,330; 9,826,002; and 9,948,549, all entitled “Producing Routing Messages For Voice Over IP Communications.” The complaint seeks an unspecified amount of damages, enhanced damages, attorneys’ fees, costs, and interest. In November 2018, the case was transferred to the United States District Court for the Northern District of California. We dispute the allegations of wrongdoing and intend to defend ourselves vigorously in this matter.

In November 2018, Dynamic Data Technologies, LLC filed a complaint for patent infringement against Amazon.com, Inc., Amazon Web Services, Inc., and Amazon Digital Services, LLC in the United States District Court for the Eastern District of Texas. The complaint alleges, among other things, that products and services with H.265 functionality, including Amazon Elastic Transcoder, AWS Elemental Media Convert, AWS Elemental MediaLive, certain EC2 instances, Amazon CloudFront, Amazon Fire TV, and Amazon Fire tablets, infringe U.S. Patent Nos. 8,135,073, entitled “Enhancing Video Images Depending On Prior Image Enhancements”; 6,774,918, entitled “Video Overlay Processor With Reduced Memory and Bus Performance Requirements”; and 7,571,450, entitled “System For And Method Of Displaying Information.” The complaint also alleges that products and services with H.265 functionality, including AWS Elemental Media Convert, AWS Elemental MediaLive, certain EC2 instances, Amazon CloudFront, and Amazon Fire TV, infringe U.S. Patent Nos. 8,073,054, entitled “Unit For And Method Of Estimating A Current Motion Vector”; 6,996,177, entitled “Motion Estimation”; 8,311,112, entitled “System And Method For Video Compression Using Predictive Coding”; and 7,894,529, entitled “Method And Device For Determining Motion Vectors.” The complaint also alleges that products and services for encoding video data, including Amazon Elastic Transcoder and Amazon Video, infringe U.S. Patent No. 8,184,689, entitled “Method Video Encoding And Decoding Preserving Cache Localities,” and that products and services with VP9 encoding functionality, including Amazon Elastic Transcoder and Amazon Fire TV, infringe U.S. Patent No. 7,519,230, entitled “Background Motion Vector Detection.” The complaint seeks an unspecified amount of damages, enhanced damages, attorneys’ fees, and interest. We dispute the allegations of wrongdoing and intend to defend ourselves vigorously in this matter.

In December 2018, Kove IO, Inc. filed a complaint against Amazon Web Services, Inc. in the United States District Court for the Northern District of Illinois. The complaint alleges, among other things, that Amazon S3 and DynamoDB infringe U.S. Patent Nos. 7,814,170 and 7,103,640, both entitled “Network Distributed Tracking Wire Transfer Protocol,” and 7,233,978, entitled “Method And Apparatus For Managing Location Information In A Network Separate From The Data To Which The Location Information Pertains.” The complaint seeks an unspecified amount of damages, enhanced damages, attorneys’ fees, costs, interest, and injunctive relief. We dispute the allegations of wrongdoing and intend to defend ourselves vigorously in this matter.

The outcomes of our legal proceedings and other contingencies are inherently unpredictable, subject to significant uncertainties, and could be material to our operating results and cash flows for a particular period. In addition, for the matters disclosed above that do not include an estimate of the amount of loss or range of losses, such an estimate is not possible or is immaterial, and we may be unable to estimate the possible loss or range of losses that could potentially result from the application of non-monetary remedies.

See also “Note 9 — Income Taxes.”

Fact Table
Network	2108100 - Disclosure - Stockholders' Equity (http://www.amazon.com/role/StockholdersEquity)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Shareholders' Equity and Share-based Payments [Text Block]

STOCKHOLDERS’ EQUITY

Preferred Stock

We have authorized 500 million shares of $0.01 par value preferred stock. No preferred stock was outstanding for any year presented.

Common Stock

Common shares outstanding plus shares underlying outstanding stock awards totaled 497 million, 504 million, and 507 million, as of December 31, 2016, 2017, and 2018. These totals include all vested and unvested stock awards outstanding, including those awards we estimate will be forfeited.

Stock Repurchase Activity

In February 2016, the Board of Directors authorized a program to repurchase up to $5.0 billion of our common stock, with no fixed expiration. There were no repurchases of common stock in 2016, 2017, or 2018.

Stock Award Plans

Employees vest in restricted stock unit awards and stock options over the corresponding service term, generally between two and five years.

Stock Award Activity

Stock-based compensation expense is as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
Cost of sales	$	16	$	47	$	73
Fulfillment	657		911		1,121
Marketing	323		511		769
Technology and content	1,664		2,305		2,888
General and administrative	315		441		567
Total stock-based compensation expense (1)	$	2,975	$	4,215	$	5,418

___________________


(1)	The related tax benefits were $907 million, $860 million, and $1.1 billion for 2016, 2017, and 2018. In 2017 and 2018, the tax benefit reflects the permanent reduction in the U.S. statutory corporate tax rate from 35% to 21%.

The following table summarizes our restricted stock unit activity (in millions):



	Number of Units		Weighted Average Grant-Date Fair Value
Outstanding as of January 1, 2016	18.9		$	362
Units granted	9.3		660
Units vested	(6.1	)	321
Units forfeited	(2.3	)	440
Outstanding as of December 31, 2016	19.8		506
Units granted	8.9		946
Units vested	(6.8	)	400
Units forfeited	(1.8	)	649
Outstanding as of December 31, 2017	20.1		725
Units granted	5.0		1,522
Units vested	(7.1	)	578
Units forfeited	(2.1	)	862
Outstanding as of December 31, 2018	15.9		$	1,024

Scheduled vesting for outstanding restricted stock units as of December 31, 2018, is as follows (in millions):



	Year Ended
	2019	2020	2021	2022	2023	Thereafter	Total
Scheduled vesting — restricted stock units	6.9	5.6	2.4	0.8	0.1	0.1	15.9

As of December 31, 2018, there was $6.6 billion of net unrecognized compensation cost related to unvested stock-based compensation arrangements. This compensation is recognized on an accelerated basis with approximately half of the compensation expected to be expensed in the next twelve months, and has a weighted-average recognition period of 1.1 years. The estimated forfeiture rate as of December 31, 2016, 2017, and 2018 was 28%, 28%, and 27%. Changes in our estimates and assumptions relating to forfeitures may cause us to realize material changes in stock-based compensation expense in the future.

During 2016, 2017, and 2018, the fair value of restricted stock units that vested was $4.3 billion, $6.8 billion, and $11.4 billion.

Common Stock Available for Future Issuance

As of December 31, 2018, common stock available for future issuance to employees is 113 million shares.

Fact Table
Network	2110100 - Disclosure - Income Taxes (http://www.amazon.com/role/IncomeTaxes)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Income Tax Disclosure [Text Block]

INCOME TAXES

In 2016, 2017, and 2018, we recorded net tax provisions of $1.4 billion, $769 million, and $1.2 billion. We have tax benefits relating to excess stock-based compensation deductions and accelerated depreciation deductions that are being utilized to reduce our U.S. taxable income. Cash taxes paid, net of refunds, were $412 million, $957 million, and $1.2 billion for 2016, 2017, and 2018.

The U.S. Tax Act was signed into law on December 22, 2017. The U.S. Tax Act significantly revised the U.S. corporate income tax by, among other things, lowering the statutory corporate tax rate from 35% to 21%, eliminating certain deductions, imposing a mandatory one-time tax on accumulated earnings of foreign subsidiaries, introducing new tax regimes, and changing how foreign earnings are subject to U.S. tax. The U.S. Tax Act also enhanced and extended the option to claim accelerated depreciation deductions by allowing full expensing of qualified property, primarily equipment, through 2022. We reasonably estimated the effects of the U.S. Tax Act and recorded provisional amounts in our financial statements as of December 31, 2017. We recorded a provisional tax benefit for the impact of the U.S. Tax Act of approximately $789 million. This amount was primarily comprised of the remeasurement of federal net deferred tax liabilities resulting from the permanent reduction in the U.S. statutory corporate tax rate to 21% from 35%, after taking into account the mandatory one-time tax on the accumulated earnings of our foreign subsidiaries. The amount of this one-time tax was not material. In 2018, we completed our determination of the accounting implications of the U.S. Tax Act.

The components of the provision for income taxes, net are as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
Current taxes:
U.S. Federal	$	1,136		$	(137	)	$	(129	)
U.S. State	208			211			322
International	327			724			563
Current taxes	1,671			798			756
Deferred taxes:
U.S. Federal	116			(202		)	565
U.S. State	(31		)	(26		)	5
International	(331		)	199			(129		)
Deferred taxes	(246		)	(29		)	441
Provision for income taxes, net	$	1,425		$	769		$	1,197

U.S. and international components of income before income taxes are as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
U.S.	$	4,551		$	5,630		$	11,157
International	(659		)	(1,824		)	104
Income before income taxes	$	3,892		$	3,806		$	11,261

The items accounting for differences between income taxes computed at the federal statutory rate and the provision recorded for income taxes are as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
Income taxes computed at the federal statutory rate (1)	$	1,362		$	1,332		$	2,365
Effect of:
Tax impact of foreign earnings	(69		)	1,178			119
State taxes, net of federal benefits	110			114			263
Tax credits	(119		)	(220		)	(419		)
Stock-based compensation (2)	189			(917		)	(1,086		)
Domestic production activities deduction	(94		)	—			—
2017 Impact of U.S. Tax Act	—			(789		)	(157		)
Other, net	46			71			112
Total	$	1,425		$	769		$	1,197

___________________


(1)	The U.S. Tax Act reduced the U.S. federal statutory rate from 35% to 21% beginning in 2018.


(2)	Includes non-deductible stock-based compensation and beginning in 2017, excess tax benefits from stock-based compensation. For 2017 and 2018, our tax provision includes $1.3 billion and $1.6 billion of excess tax benefits from stock-based compensation.

Our provision for income taxes in 2017 was lower than in 2016 primarily due to excess tax benefits from stock-based compensation and the one-time favorable effect of the U.S. Tax Act, partially offset by an increase in the proportion of foreign losses for which we may not realize a tax benefit and audit-related developments.

We regularly assess whether it is more likely than not that we will realize our deferred tax assets in each taxing jurisdiction in which we operate. In performing this assessment with respect to each jurisdiction, we review all available evidence, including recent cumulative loss experience and expectations of future earnings, capital gains, and investment in such jurisdiction, the carry-forward periods available to us for tax reporting purposes, and other relevant factors. In Q2 2017, we recognized an estimated charge to tax expense of $600 million to record a valuation allowance against the net deferred tax assets in Luxembourg.

Our provision for income taxes in 2018 was higher than in 2017 primarily due to an increase in U.S. pre-tax income and the one-time provisional tax benefit of the U.S. Tax Act recognized in 2017. This was partially offset by the reduction to the U.S. federal statutory tax rate in 2018, a decline in the proportion of foreign losses for which we may not realize a tax benefit and an increase in excess tax benefits from stock-based compensation.

Certain foreign subsidiary earnings are subject to U.S. taxation under the U.S. Tax Act, which also repeals U.S. taxation on the subsequent repatriation of those earnings. We intend to invest substantially all of our foreign subsidiary earnings, as well as our capital in our foreign subsidiaries, indefinitely outside of the U.S. in those jurisdictions in which we would incur significant, additional costs upon repatriation of such amounts.

Deferred income tax assets and liabilities are as follows (in millions):



	December 31,
	2017			2018
Deferred tax assets (1):
Loss carryforwards U.S. - Federal/States	$	211		$	222
Loss carryforwards - Foreign	2,149			2,551
Accrued liabilities, reserves, and other expenses	901			1,064
Stock-based compensation	1,026			1,293
Deferred revenue	349			321
Assets held for investment	35			69
Depreciation and amortization	279			2,386
Other items	167			94
Tax credits	381			734
Total gross deferred tax assets	5,498			8,734
Less valuation allowance (2)	(2,538		)	(4,950		)
Deferred tax assets, net of valuation allowance	2,960			3,784
Deferred tax liabilities:
Depreciation and amortization	(2,568		)	(3,579		)
Acquisition related intangible assets	(531		)	(682		)
Other items	(58		)	(67		)
Net deferred tax assets (liabilities), net of valuation allowance	$	(197	)	$	(544	)

___________________


(1)	Deferred tax assets are presented net of tax contingencies.


(2)	Relates primarily to deferred tax assets that would only be realizable upon the generation of net income in certain foreign taxing jurisdictions and future capital gains.

As of December 31, 2018, our federal, foreign, and state net operating loss carryforwards for income tax purposes were approximately $627 million, $7.8 billion, and $919 million. The federal, foreign, and state net operating loss carryforwards are subject to limitations under Section 382 of the Internal Revenue Code and applicable foreign and state tax law. If not utilized, a portion of the federal, foreign, and state net operating loss carryforwards will begin to expire in 2029, 2019, and 2019, respectively. As of December 31, 2018, our tax credit carryforwards for income tax purposes were approximately $1.7 billion. If not utilized, a portion of the tax credit carryforwards will begin to expire in 2022. As of December 31, 2018, our federal capital loss carryforwards for income tax purposes was approximately $261 million. If not utilized, a portion of the capital loss carryforwards will begin to expire in 2022.

Tax Contingencies

We are subject to income taxes in the U.S. (federal and state) and numerous foreign jurisdictions. Significant judgment is required in evaluating our tax positions and determining our provision for income taxes. During the ordinary course of business, there are many transactions and calculations for which the ultimate tax determination is uncertain. We establish reserves for tax-related uncertainties based on estimates of whether, and the extent to which, additional taxes will be due. These reserves are established when we believe that certain positions might be challenged despite our belief that our tax return positions are fully supportable. We adjust these reserves in light of changing facts and circumstances, such as the outcome of tax audits. The provision for income taxes includes the impact of reserve provisions and changes to reserves that are considered appropriate.

The reconciliation of our tax contingencies is as follows (in millions):



	December 31,
	2016			2017			2018
Gross tax contingencies – January 1	$	1,181		$	1,710		$	2,309
Gross increases to tax positions in prior periods	355			223			164
Gross decreases to tax positions in prior periods	(133		)	(139		)	(90		)
Gross increases to current period tax positions	308			518			1,088
Settlements with tax authorities	—			—			(36		)
Lapse of statute of limitations	(1		)	(3		)	(21		)
Gross tax contingencies – December 31 (1)	$	1,710		$	2,309		$	3,414

___________________


(1)	As of December 31, 2018, we had approximately $3.4 billion of accrued tax contingencies, of which $1.7 billion, if fully recognized, would decrease our effective tax rate.

As of December 31, 2017 and 2018, we had accrued interest and penalties, net of federal income tax benefit, related to tax contingencies of $107 million and $127 million. Interest and penalties, net of federal income tax benefit, recognized for the years ended December 31, 2016, 2017, and 2018 was $9 million, $40 million, and $20 million.

We are under examination, or may be subject to examination, by the Internal Revenue Service (“IRS”) for the calendar year 2005 and thereafter. These examinations may lead to ordinary course adjustments or proposed adjustments to our taxes or our net operating losses with respect to years under examination as well as subsequent periods. As previously disclosed, we have received Notices of Proposed Adjustment (“NOPAs”) from the IRS for transactions undertaken in the 2005 and 2006 calendar years relating to transfer pricing with our foreign subsidiaries. The IRS is seeking to increase our U.S. taxable income by an amount that would result in additional federal tax of approximately $1.5 billion, subject to interest. On March 23, 2017, the U.S. Tax Court issued its decision regarding the issues raised in the IRS NOPAs. The Tax Court rejected the approach from the IRS NOPAs in determining transfer pricing adjustments in 2005 and 2006 for the transactions undertaken with our foreign subsidiaries and adopted, with adjustments, our suggested approach. In September 2017, the IRS appealed the decision to the U.S. Court of Appeals for the Ninth Circuit. We will continue to defend ourselves vigorously in this matter. If the Tax Court decision were reversed on appeal or if the IRS were to successfully assert transfer pricing adjustments of a similar nature to the NOPAs for transactions in subsequent years, we could be subject to significant additional tax liabilities.

In October 2014, the European Commission opened a formal investigation to examine whether decisions by the tax authorities in Luxembourg with regard to the corporate income tax paid by certain of our subsidiaries comply with European Union rules on state aid. On October 4, 2017, the European Commission announced its decision that determinations by the tax authorities in Luxembourg did not comply with European Union rules on state aid. Based on that decision the European Commission announced an estimated recovery amount of approximately €250 million, plus interest, for the period May 2006 through June 2014, and ordered Luxembourg tax authorities to calculate the actual amount of additional taxes subject to recovery. Luxembourg computed an initial recovery amount, consistent with the European Commission’s decision, that we deposited into escrow in March 2018, subject to adjustment pending conclusion of all appeals. In December 2017, Luxembourg appealed the European Commission’s decision. In May 2018, we appealed. We believe the European Commission’s decision to be without merit and will continue to defend ourselves vigorously in this matter. We are also subject to taxation in various states and other foreign jurisdictions including China, Germany, India, Japan, Luxembourg, and the United Kingdom. We are under, or may be subject to, audit or examination and additional assessments by the relevant authorities in respect of these particular jurisdictions primarily for 2008 and thereafter.

We expect the total amount of tax contingencies will grow in 2019. In addition, changes in state, federal, and foreign tax laws may increase our tax contingencies. The timing of the resolution of income tax examinations is highly uncertain, and the amounts ultimately paid, if any, upon resolution of the issues raised by the taxing authorities may differ from the amounts accrued. It is reasonably possible that within the next 12 months we will receive additional assessments by various tax authorities or possibly reach resolution of income tax examinations in one or more jurisdictions. These assessments or settlements could result in changes to our contingencies related to positions on tax filings in years through 2018. The actual amount of any change could vary significantly depending on the ultimate timing and nature of any settlements. We cannot currently provide an estimate of the range of possible outcomes.

Fact Table
Network	2111100 - Disclosure - Segment Information (http://www.amazon.com/role/SegmentInformation)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Segment Reporting Disclosure [Text Block]

SEGMENT INFORMATION

We have organized our operations into three segments: North America, International, and AWS. We allocate to segment results the operating expenses “Fulfillment,” “Marketing,” “Technology and content,” and “General and administrative” based on usage, which is generally reflected in the segment in which the costs are incurred. The majority of technology infrastructure costs are allocated to the AWS segment based on usage. The majority of the remaining non-infrastructure technology costs are incurred in the U.S. and are allocated to our North America segment. There are no internal revenue transactions between our reportable segments. These segments reflect the way our chief operating decision maker evaluates the Company’s business performance and manages its operations.

North America

The North America segment primarily consists of amounts earned from retail sales of consumer products (including from sellers) and subscriptions through North America-focused online and physical stores. This segment includes export sales from these online stores.

International

The International segment primarily consists of amounts earned from retail sales of consumer products (including from sellers) and subscriptions through internationally-focused online stores. This segment includes export sales from these internationally-focused online stores (including export sales from these online stores to customers in the U.S., Mexico, and Canada), but excludes export sales from our North America-focused online stores.

AWS

The AWS segment consists of amounts earned from global sales of compute, storage, database, and other service offerings for start-ups, enterprises, government agencies, and academic institutions.

Information on reportable segments and reconciliation to consolidated net income (loss) is as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
North America
Net sales	$	79,785		$	106,110		$	141,366
Operating expenses	77,424			103,273			134,099
Operating income	$	2,361		$	2,837		$	7,267
International
Net sales	$	43,983		$	54,297		$	65,866
Operating expenses	45,266			57,359			68,008
Operating income (loss)	$	(1,283	)	$	(3,062	)	$	(2,142	)
AWS
Net sales	$	12,219		$	17,459		$	25,655
Operating expenses	9,111			13,128			18,359
Operating income	$	3,108		$	4,331		$	7,296
Consolidated
Net sales	$	135,987		$	177,866		$	232,887
Operating expenses	131,801			173,760			220,466
Operating income	4,186			4,106			12,421
Total non-operating income (expense)	(294		)	(300		)	(1,160		)
Provision for income taxes	(1,425		)	(769		)	(1,197		)
Equity-method investment activity, net of tax	(96		)	(4		)	9
Net income	$	2,371		$	3,033		$	10,073

Net sales by groups of similar products and services, which also have similar economic characteristics, is as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
Net Sales:
Online stores (1)	$	91,431	$	108,354	$	122,987
Physical stores (2)	—		5,798		17,224
Third-party seller services (3)	22,993		31,881		42,745
Subscription services (4)	6,394		9,721		14,168
AWS	12,219		17,459		25,655
Other (5)	2,950		4,653		10,108
Consolidated	$	135,987	$	177,866	$	232,887

___________________

(1)

Includes product sales and digital media content where we record revenue gross. We leverage our retail infrastructure to offer a wide selection of consumable and durable goods that includes media products available in both a physical and digital format, such as books, music, videos, games, and software. These product sales include digital products sold on a transactional basis. Digital product subscriptions that provide unlimited viewing or usage rights are included in Subscription services.


(2)	Includes product sales where our customers physically select items in a store.


(3)	Includes commissions and any related fulfillment and shipping fees, and other third-party seller services.


(4)	Includes annual and monthly fees associated with Amazon Prime memberships, as well as audiobook, digital video, e-book, digital music, and other non-AWS subscription services.


(5)	Primarily includes sales of advertising services, as well as sales related to our other service offerings.

Net sales generated from our internationally-focused online stores are denominated in local functional currencies. Revenues are translated at average rates prevailing throughout the period. Net sales attributed to countries that represent a significant portion of consolidated net sales are as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
United States	$	90,349	$	120,486	$	160,146
Germany	14,148		16,951		19,881
United Kingdom	9,547		11,372		14,524
Japan	10,797		11,907		13,829
Rest of world	11,146		17,150		24,507
Consolidated	$	135,987	$	177,866	$	232,887

Total segment assets exclude corporate assets, such as cash and cash equivalents, marketable securities, other long-term investments, corporate facilities, goodwill and other acquired intangible assets, and tax assets. Technology infrastructure assets are allocated among the segments based on usage, with the majority allocated to the AWS segment. Total segment assets reconciled to consolidated amounts are as follows (in millions):



	December 31,
	2016		2017		2018
North America (1)	$	22,225	$	35,844	$	47,251
International (1)	10,429		18,014		19,923
AWS (2)	12,698		18,660		26,340
Corporate	38,050		58,792		69,134
Consolidated	$	83,402	$	131,310	$	162,648

___________________


(1)	North America and International segment assets primarily consist of property and equipment, inventory, and accounts receivable.


(2)	AWS segment assets primarily consist of property and equipment and accounts receivable.

Property and equipment, net by segment is as follows (in millions):



	December 31,
	2016		2017		2018
North America	$	10,143	$	20,401	$	27,052
International	3,448		7,425		8,552
AWS	10,300		14,885		18,851
Corporate	5,223		6,155		7,342
Consolidated	$	29,114	$	48,866	$	61,797

Total net additions to property and equipment by segment are as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
North America (1)	$	5,132	$	13,200	$	10,749
International (1)	1,680		5,196		2,476
AWS (2)	5,193		9,190		9,783
Corporate	1,580		2,197		2,060
Consolidated	$	13,585	$	29,783	$	25,068

___________________


(1)	Includes property and equipment added under capital leases of $1.5 billion, $2.9 billion, and $2.0 billion in 2016, 2017, and 2018, and under other financing arrangements of $849 million, $2.9 billion, and $3.0 billion in 2016, 2017, and 2018.


(2)	Includes property and equipment added under capital leases of $4.0 billion, $7.3 billion, and $8.4 billion in 2016, 2017, and 2018, and under finance leases of $75 million, $134 million, and $245 million in 2016, 2017, and 2018.

U.S. property and equipment, net was $22.0 billion, $35.5 billion, and $45.1 billion, in 2016, 2017, and 2018, and rest of world property and equipment, net was $7.1 billion, $13.4 billion, and $16.7 billion in 2016, 2017, and 2018. Except for the U.S., property and equipment, net, in any single country was less than 10% of consolidated property and equipment, net.

Depreciation expense, including other corporate property and equipment depreciation expense, are allocated to all segments based on usage. Total depreciation expense, by segment, is as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
North America	$	1,971	$	3,029	$	4,415
International	930		1,278		1,628
AWS	3,461		4,524		6,095
Consolidated	$	6,362	$	8,831	$	12,138

Fact Table
Network	2112100 - Disclosure - Quarterly Results (Unaudited) (http://www.amazon.com/role/QuarterlyResultsUnaudited)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Quarterly Financial Information [Text Block]

QUARTERLY RESULTS (UNAUDITED)

The following tables contain selected unaudited statement of operations information for each quarter of 2017 and 2018. The following information reflects all normal recurring adjustments necessary for a fair presentation of the information for the periods presented. The operating results for any quarter are not necessarily indicative of results for any future period. Our business is affected by seasonality, which historically has resulted in higher sales volume during our fourth quarter. Unaudited quarterly results are as follows (in millions, except per share data):



	Year Ended December 31, 2017 (1)
	First Quarter			Second Quarter			Third Quarter (2)			Fourth Quarter (2)
Net sales	$	35,714		$	37,955		$	43,744		$	60,453
Operating income	1,005			628			347			2,127
Income before income taxes	953			666			316			1,872
Provision for income taxes	(229		)	(467		)	(58		)	(16		)
Net income	724			197			256			1,856
Basic earnings per share	1.52			0.41			0.53			3.85
Diluted earnings per share	1.48			0.40			0.52			3.75
Shares used in computation of earnings per share:
Basic	477			479			481			483
Diluted	490			492			494			496



	Year Ended December 31, 2018 (1)
	First Quarter			Second Quarter			Third Quarter			Fourth Quarter
Net sales	$	51,042		$	52,886		$	56,576		$	72,383
Operating income	1,927			2,983			3,724			3,786
Income before income taxes	1,916			2,605			3,390			3,350
Provision for income taxes	(287		)	(74		)	(508		)	(327		)
Net income	1,629			2,534			2,883			3,027
Basic earnings per share	3.36			5.21			5.91			6.18
Diluted earnings per share	3.27			5.07			5.75			6.04
Shares used in computation of earnings per share:
Basic	484			486			488			490
Diluted	498			500			501			501

___________________


(1)	The sum of quarterly amounts, including per share amounts, may not equal amounts reported for year-to-date periods. This is due to the effects of rounding and changes in the number of weighted-average shares outstanding for each period.


(2)	We acquired Whole Foods Market on August 28, 2017. The results of Whole Foods Market have been included in our results of operation from the date of acquisition. See Item 8 of Part II, “Financial Statements and Supplementary Data — Note 4 — Acquisitions, Goodwill, and Acquired Intangible Assets” for additional information regarding this transaction.

Fact Table
Network	2201201 - Disclosure - Description of Business and Accounting Policies (Policies) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesPolicies)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:AccruedExpensesAndOtherPolicyPolicyTextBlock (label)

Accrued Expenses and Other

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:FulfillmentExpensesPolicyPolicyTextBlock (label)

Fulfillment

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:OtherAssetsNoncurrentPolicyPolicyTextBlock (label)

Other Assets

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:OtherNonoperatingIncomeAndExpensePolicyPolicyTextBlock (label)

Other Income (Expense), Net

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:OtherOperatingIncomeAndExpensePolicyPolicyTextBlock (label)

Other Operating Expense, Net

Other operating expense, net, consists primarily of marketing-related, contract-based, and customer-related intangible asset amortization expense, and expenses related to legal settlements.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:RevenuefromContractwithCustomerContractLiabilityPolicyTextBlock (label)

Unearned Revenue

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:TechnologyAndContentExpensesPolicyPolicyTextBlock (label)

Technology and Content

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:VideoAndMusicContentPolicyPolicyTextBlock (label)

Video and Music Content

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Advertising Costs, Policy [Policy Text Block]

Marketing

Advertising and other promotional costs to market our products and services are expensed as incurred

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Asset Retirement Obligation [Policy Text Block]

Leases and Asset Retirement Obligations

As disclosed in “Accounting Pronouncements Not Yet Adopted,” our accounting for build-to-suit and finance leases will change on January 1, 2019.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash and Cash Equivalents

We classify all highly liquid instruments with an original maturity of three months or less as cash equivalents.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Stock-Based Compensation

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Consolidation, Policy [Policy Text Block]

Principles of Consolidation

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Earnings Per Share, Policy [Policy Text Block]

Earnings per Share

0001018724 (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 — Valuations based on quoted prices for identical assets and liabilities in active markets.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Foreign Currency Transactions and Translations Policy [Policy Text Block]

Foreign Currency

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]

Goodwill

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]

Long-Lived Assets

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Income Tax, Policy [Policy Text Block]

Income Taxes

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Internal Use Software, Policy [Policy Text Block]

Software Development Costs

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Inventory, Policy [Policy Text Block]

Inventories

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Investment, Policy [Policy Text Block]

Investments

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Lessee, Leases [Policy Text Block]

Leases and Asset Retirement Obligations

As disclosed in “Accounting Pronouncements Not Yet Adopted,” our accounting for build-to-suit and finance leases will change on January 1, 2019.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

New Accounting Pronouncements, Policy [Policy Text Block]

Accounting Pronouncements Recently Adopted



Year Ended December 31, 2016	Previously Reported			Adjustments			As Revised
Operating activities	$	17,272		$	(69	)	$	17,203
Investing activities	(9,876		)	360			(9,516		)
Financing activities	(3,740		)	24			(3,716		)
Net change in cash, cash equivalents, and restricted cash	$	3,656		$	315		$	3,971



Year Ended December 31, 2017	Previously Reported			Adjustments			As Revised
Operating activities	$	18,434		$	(69	)	$	18,365
Investing activities	(27,819		)	735			(27,084		)
Financing activities	9,860			68			9,928
Net change in cash, cash equivalents, and restricted cash	$	475		$	734		$	1,209

Accounting Pronouncements Not Yet Adopted

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Reclassification, Policy [Policy Text Block]

Prior Period Reclassifications

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

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

Property and Equipment, Net

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Receivables, Policy [Policy Text Block]

Accounts Receivable, Net and Other

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Revenue Recognition, Policy [Policy Text Block]

Revenue

A description of our principal revenue generating activities is as follows:

Other - Other revenue primarily includes sales of advertising services, which are recognized as ads are delivered based on the number of clicks or impressions.

Return Allowances

Cost of Sales

Vendor Agreements

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Segment Reporting, Policy [Policy Text Block]

We have organized our operations into three segments: North America, International, and AWS.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Selling, General and Administrative Expenses, Policy [Policy Text Block]

General and Administrative

0001018724 (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	2301302 - Disclosure - Description of Business and Accounting Policies (Tables) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

We adopted this ASU in Q1 2018 on a retrospective basis with the following impacts to our consolidated statements of cash flows (in millions):



Year Ended December 31, 2016	Previously Reported			Adjustments			As Revised
Operating activities	$	17,272		$	(69	)	$	17,203
Investing activities	(9,876		)	360			(9,516		)
Financing activities	(3,740		)	24			(3,716		)
Net change in cash, cash equivalents, and restricted cash	$	3,656		$	315		$	3,971



Year Ended December 31, 2017	Previously Reported			Adjustments			As Revised
Operating activities	$	18,434		$	(69	)	$	18,365
Investing activities	(27,819		)	735			(27,084		)
Financing activities	9,860			68			9,928
Net change in cash, cash equivalents, and restricted cash	$	475		$	734		$	1,209

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Weighted Average Number of Shares [Table Text Block]

The following table shows the calculation of diluted shares (in millions):



	Year Ended December 31,
	2016	2017	2018
Shares used in computation of basic earnings per share	474	480	487
Total dilutive effect of outstanding stock awards	10	13	13
Shares used in computation of diluted earnings per share	484	493	500

Fact Table
Network	2302301 - Disclosure - Cash, Cash Equivalents, and Marketable Securities (Tables) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The following table summarizes, by major security type, our cash, cash equivalents, restricted cash, and marketable securities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy (in millions):



	December 31, 2017
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Total Estimated Fair Value
Cash	$	9,982	$	—	$	—		$	9,982
Level 1 securities:
Money market funds	11,343		—		—			11,343
Equity securities	23		30		—			53
Level 2 securities:
Foreign government and agency securities	620		—		—			620
U.S. government and agency securities	4,841		1		(19		)	4,823
Corporate debt securities	4,265		1		(9		)	4,257
Asset-backed securities	910		—		(5		)	905
Other fixed income securities	340		—		(2		)	338
	$	32,324	$	32	$	(35	)	$	32,321
Less: Restricted cash, cash equivalents, and marketable securities (1)								(1,335		)
Total cash, cash equivalents, and marketable securities								$	30,986



	December 31, 2018
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Total Estimated Fair Value
Cash	$	10,406	$	—	$	—		$	10,406
Level 1 securities:
Money market funds	12,515		—		—			12,515
Equity securities	29		143		(2		)	170
Level 2 securities:
Foreign government and agency securities	815		—		—			815
U.S. government and agency securities	11,686		1		(20		)	11,667
Corporate debt securities	5,008		1		(19		)	4,990
Asset-backed securities	896		—		(4		)	892
Other fixed income securities	190		—		(2		)	188
Equity securities	28		5		—			33
	$	41,573	$	150	$	(47	)	$	41,676
Less: Restricted cash, cash equivalents, and marketable securities (1)								(426		)
Total cash, cash equivalents, and marketable securities								$	41,250

___________________

(1)

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Investments Classified by Contractual Maturity Date [Table Text Block]

The following table summarizes the remaining contractual maturities of our cash equivalents and marketable fixed income securities as of December 31, 2018 (in millions):



	Amortized Cost		Estimated Fair Value
Due within one year	$	27,520	$	27,508
Due after one year through five years	2,865		2,845
Due after five years through ten years	187		185
Due after ten years	538		529
Total	$	31,110	$	31,067

Actual maturities may differ from the contractual maturities because borrowers may have certain prepayment conditions.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Realized Gain (Loss) on Investments [Table Text Block]

The following table summarizes gross gains and gross losses realized on sales of available-for-sale fixed income marketable securities (in millions):



	Year Ended December 31,
	2016		2017		2018
Realized gains	$	3	$	5	$	2
Realized losses	11		11		9

Fact Table
Network	2302302 - Disclosure - Cash, Cash Equivalents, and Marketable Securities Reconciliation to Cash Flow (Tables) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesReconciliationToCashFlowTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:ReconciliationofcashcashequivalentsandrestrictedcashTableTextBlock (label)



	December 31, 2017		December 31, 2018
Cash and cash equivalents	$	20,522	$	31,750
Restricted cash included in accounts receivable, net and other	1,329		418
Restricted cash included in other assets	5		5
Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows	$	21,856	$	32,173

Fact Table
Network	2303301 - Disclosure - Property and Equipment (Tables) (http://www.amazon.com/role/PropertyAndEquipmentTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Property, Plant and Equipment [Table Text Block]

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



	December 31,
	2017		2018
Gross property and equipment (1):
Land and buildings	$	23,896	$	31,741
Equipment	42,244		54,591
Other assets	2,438		2,577
Construction in progress	4,078		6,861
Gross property and equipment	72,656		95,770
Total accumulated depreciation and amortization (1)	23,790		33,973
Total property and equipment, net	$	48,866	$	61,797

___________________


(1)	We revised our prior year presentation of gross property and equipment and total accumulated depreciation and amortization to include all property and equipment in service, including equipment which is fully-depreciated, to conform to the current year presentation. Total property and equipment, net remains unchanged for the prior year.

Fact Table
Network	2304301 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets (Tables) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (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]

Acquired intangible assets, included within “Other assets” on our consolidated balance sheets, consist of the following (in millions):



	December 31,
	2017							2018
	Acquired Intangibles, Gross (1)		Accumulated Amortization (1)			Acquired Intangibles, Net		Acquired Intangibles, Gross (1)		Accumulated Amortization (1)			Acquired Intangibles, Net		Weighted Average Life Remaining
Marketing-related	$	2,486	$	(418	)	$	2,068	$	2,542	$	(431	)	$	2,111	21.2
Contract-based	1,013		(213		)	800		1,430		(224		)	1,206		12.3
Technology- and content-based	640		(252		)	388		941		(377		)	564		4.6
Customer-related	283		(168		)	115		437		(208		)	229		4.4
Acquired intangibles (2)	$	4,422	$	(1,051	)	$	3,371	$	5,350	$	(1,240	)	$	4,110	15.4

___________________


(1)	Excludes the original cost and accumulated amortization of fully-amortized intangibles.


(2)	Intangible assets have estimated useful lives of between one and twenty-five years.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Goodwill [Table Text Block]

The following summarizes our goodwill activity in 2017 and 2018 by segment (in millions):



	North America			International			AWS			Consolidated
Goodwill - January 1, 2017	$	2,044		$	694		$	1,046		$	3,784
New acquisitions (1)	9,115			368			18			9,501
Other adjustments (2)	6			46			13			65
Goodwill - December 31, 2017	11,165			1,108			1,077			13,350
New acquisitions (1)	1,031			177			20			1,228
Other adjustments (2)	(5		)	(15		)	(10		)	(30		)
Goodwill - December 31, 2018	$	12,191		$	1,270		$	1,087		$	14,548

___________________


(1)	Primarily includes the acquisition of Whole Foods Market in the North America segment and Souq in the International segment in 2017 and the acquisitions of Ring and PillPack in the North America segment in 2018.


(2)	Primarily includes changes in foreign exchange rates.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The aggregate purchase price of these acquisitions was allocated as follows (in millions):



	December 31,
	2016			2017			2018

Purchase Price
Cash paid, net of cash acquired	$	81		$	13,859		$	1,618
Indemnification holdback	22			104			31
	$	103		$	13,963		$	1,649
Allocation
Goodwill	$	60		$	9,501		$	1,228
Intangible assets (1):
Marketing-related	2			1,987			186
Contract-based	1			440			13
Technology-based	53			166			285
Customer-related	1			54			193
	57			2,647			677
Property and equipment	3			3,810			11
Deferred tax assets	17			117			174
Other assets acquired	10			1,858			282
Long-term debt	(5		)	(1,165		)	(176		)
Deferred tax liabilities	(18		)	(961		)	(159		)
Other liabilities assumed	(21		)	(1,844		)	(388		)
	$	103		$	13,963		$	1,649

___________________


(1)	Intangible assets acquired in 2016, 2017, and 2018 have estimated useful lives of between one and seven years, one and twenty-five years, and two and seven years, with weighted-average amortization periods of five years, twenty-one years, and six years.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

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

Expected future amortization expense of acquired intangible assets as of December 31, 2018 is as follows (in millions):



Year Ended December 31,
2019	$	511
2020	412
2021	355
2022	323
2023	270
Thereafter	2,217
	$	4,088

Fact Table
Network	2305301 - Disclosure - Long-Term Debt (Tables) (http://www.amazon.com/role/LongTermDebtTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

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

The face value of our total long-term debt obligations is as follows (in millions):



	December 31,
	2017			2018
2.600% Notes due on December 5, 2019 (2)	1,000			1,000
1.900% Notes due on August 21, 2020 (3)	1,000			1,000
3.300% Notes due on December 5, 2021 (2)	1,000			1,000
2.500% Notes due on November 29, 2022 (1)	1,250			1,250
2.400% Notes due on February 22, 2023 (3)	1,000			1,000
2.800% Notes due on August 22, 2024 (3)	2,000			2,000
3.800% Notes due on December 5, 2024 (2)	1,250			1,250
5.200% Notes due on December 3, 2025 (4)	1,000			1,000
3.150% Notes due on August 22, 2027 (3)	3,500			3,500
4.800% Notes due on December 5, 2034 (2)	1,250			1,250
3.875% Notes due on August 22, 2037 (3)	2,750			2,750
4.950% Notes due on December 5, 2044 (2)	1,500			1,500
4.050% Notes due on August 22, 2047 (3)	3,500			3,500
4.250% Notes due on August 22, 2057 (3)	2,250			2,250
Credit Facility	592			594
Other long-term debt	100			121
Total debt	24,942			24,965
Less current portion of long-term debt	(100		)	(1,371		)
Face value of long-term debt	$	24,842		$	23,594

_____________________________


(1)	Issued in November 2012, effective interest rate of the 2022 Notes was 2.66%.


(2)	Issued in December 2014, effective interest rates of the 2019, 2021, 2024, 2034, and 2044 Notes were 2.73%, 3.43%, 3.90%, 4.92%, and 5.11%.


(3)	Issued in August 2017, effective interest rates of the 2020, 2023, 2024, 2027, 2037, 2047, and 2057 Notes were 2.16%, 2.56%, 2.95%, 3.25%, 3.94%, 4.13%, and 4.33%.


(4)	Consists of $872 million of 2025 Notes issued in December 2017 in exchange for notes assumed in connection with the acquisition of Whole Foods Market and $128 million of 2025 Notes issued by Whole Foods Market that did not participate in our December 2017 exchange offer. The effective interest rate of the 2025 Notes was 3.02%.

0001018724 (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, future principal payments for our total debt were as follows (in millions):



Year Ended December 31,
2019	$	1,371
2020	1,298
2021	1,016
2022	1,266
2023	1,014
Thereafter	19,000
	$	24,965

Fact Table
Network	2306301 - Disclosure - Other Long-Term Liabilities (Tables) (http://www.amazon.com/role/OtherLongTermLiabilitiesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:ScheduleOfCapitalLeaseObligationsTextBlock (label)

Long-term capital lease obligations are as follows (in millions):



	December 31, 2018
Gross capital lease obligations	$	17,952
Less imputed interest	(582		)
Present value of net minimum lease payments	17,370
Less current portion of capital lease obligations	(7,720		)
Total long-term capital lease obligations	$	9,650

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

amzn:ScheduleofFinanceLeaseObligationsTableTextBlock (label)

Long-term finance lease obligations are as follows (in millions):



	December 31, 2018
Gross finance lease obligations	$	8,376
Less imputed interest	(1,323		)
Present value of net minimum lease payments	7,053
Less current portion of finance lease obligations	(411		)
Total long-term finance lease obligations	$	6,642

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Other Liabilities [Table Text Block]

Our other long-term liabilities are summarized as follows (in millions):



	December 31,
	2017		2018
Long-term capital lease obligations	$	8,438	$	9,650
Long-term finance lease obligations	4,745		6,642
Construction liabilities	1,350		2,516
Tax contingencies	1,004		896
Long-term deferred tax liabilities	990		1,490
Other	4,448		6,019
Total other long-term liabilities	$	20,975	$	27,213

Fact Table
Network	2307301 - Disclosure - Commitments and Contingencies (Tables) (http://www.amazon.com/role/CommitmentsAndContingenciesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block]



	Year Ended December 31,
	2019		2020		2021		2022		2023		Thereafter		Total
Debt principal and interest	$	2,277	$	2,161	$	1,861	$	2,078	$	1,781	$	30,013	$	40,171
Capital lease obligations, including interest (1)	7,807		5,742		2,725		704		473		501		17,952
Finance lease obligations, including interest (2)	628		640		652		664		675		5,117		8,376
Operating leases	3,127		3,070		2,775		2,473		2,195		13,026		26,666
Unconditional purchase obligations (3)	3,523		4,103		3,291		3,098		2,974		5,204		22,193
Other commitments (4) (5)	2,618		1,455		1,056		843		808		8,875		15,655
Total commitments	$	19,980	$	17,171	$	12,360	$	9,860	$	8,906	$	62,736	$	131,013

___________________


(1)	Excluding interest, current capital lease obligations of $5.8 billion and $7.7 billion are recorded within “Accrued expenses and other” as of December 31, 2017 and 2018, and $8.4 billion and $9.6 billion are recorded within “Other long-term liabilities” as of December 31, 2017 and 2018.


(2)	Excluding interest, current finance lease obligations of $282 million and $411 million are recorded within “Accrued expenses and other” as of December 31, 2017 and 2018, and $4.7 billion and $6.6 billion are recorded within “Other long-term liabilities” as of December 31, 2017 and 2018.

(3)


(4)	Includes the estimated timing and amounts of payments for rent and tenant improvements associated with build-to-suit lease arrangements and equipment lease arrangements that have not been placed in service and digital media content liabilities associated with long-term digital media content assets with initial terms greater than one year.


(5)	Excludes approximately $3.4 billion of accrued tax contingencies for which we cannot make a reasonably reliable estimate of the amount and period of payment, if any.

Fact Table
Network	2308301 - Disclosure - Stockholders' Equity (Tables) (http://www.amazon.com/role/StockholdersEquityTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

Stock-based compensation expense is as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
Cost of sales	$	16	$	47	$	73
Fulfillment	657		911		1,121
Marketing	323		511		769
Technology and content	1,664		2,305		2,888
General and administrative	315		441		567
Total stock-based compensation expense (1)	$	2,975	$	4,215	$	5,418

___________________


(1)	The related tax benefits were $907 million, $860 million, and $1.1 billion for 2016, 2017, and 2018. In 2017 and 2018, the tax benefit reflects the permanent reduction in the U.S. statutory corporate tax rate from 35% to 21%.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

The following table summarizes our restricted stock unit activity (in millions):



	Number of Units		Weighted Average Grant-Date Fair Value
Outstanding as of January 1, 2016	18.9		$	362
Units granted	9.3		660
Units vested	(6.1	)	321
Units forfeited	(2.3	)	440
Outstanding as of December 31, 2016	19.8		506
Units granted	8.9		946
Units vested	(6.8	)	400
Units forfeited	(1.8	)	649
Outstanding as of December 31, 2017	20.1		725
Units granted	5.0		1,522
Units vested	(7.1	)	578
Units forfeited	(2.1	)	862
Outstanding as of December 31, 2018	15.9		$	1,024

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Share-based Compensation Arrangements by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest [Table Text Block]

Scheduled vesting for outstanding restricted stock units as of December 31, 2018, is as follows (in millions):



	Year Ended
	2019	2020	2021	2022	2023	Thereafter	Total
Scheduled vesting — restricted stock units	6.9	5.6	2.4	0.8	0.1	0.1	15.9

Fact Table
Network	2310301 - Disclosure - Income Taxes (Tables) (http://www.amazon.com/role/IncomeTaxesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

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

The components of the provision for income taxes, net are as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
Current taxes:
U.S. Federal	$	1,136		$	(137	)	$	(129	)
U.S. State	208			211			322
International	327			724			563
Current taxes	1,671			798			756
Deferred taxes:
U.S. Federal	116			(202		)	565
U.S. State	(31		)	(26		)	5
International	(331		)	199			(129		)
Deferred taxes	(246		)	(29		)	441
Provision for income taxes, net	$	1,425		$	769		$	1,197

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

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

Deferred income tax assets and liabilities are as follows (in millions):



	December 31,
	2017			2018
Deferred tax assets (1):
Loss carryforwards U.S. - Federal/States	$	211		$	222
Loss carryforwards - Foreign	2,149			2,551
Accrued liabilities, reserves, and other expenses	901			1,064
Stock-based compensation	1,026			1,293
Deferred revenue	349			321
Assets held for investment	35			69
Depreciation and amortization	279			2,386
Other items	167			94
Tax credits	381			734
Total gross deferred tax assets	5,498			8,734
Less valuation allowance (2)	(2,538		)	(4,950		)
Deferred tax assets, net of valuation allowance	2,960			3,784
Deferred tax liabilities:
Depreciation and amortization	(2,568		)	(3,579		)
Acquisition related intangible assets	(531		)	(682		)
Other items	(58		)	(67		)
Net deferred tax assets (liabilities), net of valuation allowance	$	(197	)	$	(544	)

___________________


(1)	Deferred tax assets are presented net of tax contingencies.


(2)	Relates primarily to deferred tax assets that would only be realizable upon the generation of net income in certain foreign taxing jurisdictions and future capital gains.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

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

The items accounting for differences between income taxes computed at the federal statutory rate and the provision recorded for income taxes are as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
Income taxes computed at the federal statutory rate (1)	$	1,362		$	1,332		$	2,365
Effect of:
Tax impact of foreign earnings	(69		)	1,178			119
State taxes, net of federal benefits	110			114			263
Tax credits	(119		)	(220		)	(419		)
Stock-based compensation (2)	189			(917		)	(1,086		)
Domestic production activities deduction	(94		)	—			—
2017 Impact of U.S. Tax Act	—			(789		)	(157		)
Other, net	46			71			112
Total	$	1,425		$	769		$	1,197

___________________


(1)	The U.S. Tax Act reduced the U.S. federal statutory rate from 35% to 21% beginning in 2018.


(2)	Includes non-deductible stock-based compensation and beginning in 2017, excess tax benefits from stock-based compensation. For 2017 and 2018, our tax provision includes $1.3 billion and $1.6 billion of excess tax benefits from stock-based compensation.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

U.S. and international components of income before income taxes are as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
U.S.	$	4,551		$	5,630		$	11,157
International	(659		)	(1,824		)	104
Income before income taxes	$	3,892		$	3,806		$	11,261

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Summary of Income Tax Contingencies [Table Text Block]

The reconciliation of our tax contingencies is as follows (in millions):



	December 31,
	2016			2017			2018
Gross tax contingencies – January 1	$	1,181		$	1,710		$	2,309
Gross increases to tax positions in prior periods	355			223			164
Gross decreases to tax positions in prior periods	(133		)	(139		)	(90		)
Gross increases to current period tax positions	308			518			1,088
Settlements with tax authorities	—			—			(36		)
Lapse of statute of limitations	(1		)	(3		)	(21		)
Gross tax contingencies – December 31 (1)	$	1,710		$	2,309		$	3,414

___________________


(1)	As of December 31, 2018, we had approximately $3.4 billion of accrued tax contingencies, of which $1.7 billion, if fully recognized, would decrease our effective tax rate.

Fact Table
Network	2311301 - Disclosure - Segment Information (Tables) (http://www.amazon.com/role/SegmentInformationTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Disaggregation of Revenue [Table Text Block]

Net sales by groups of similar products and services, which also have similar economic characteristics, is as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
Net Sales:
Online stores (1)	$	91,431	$	108,354	$	122,987
Physical stores (2)	—		5,798		17,224
Third-party seller services (3)	22,993		31,881		42,745
Subscription services (4)	6,394		9,721		14,168
AWS	12,219		17,459		25,655
Other (5)	2,950		4,653		10,108
Consolidated	$	135,987	$	177,866	$	232,887

___________________

(1)


(2)	Includes product sales where our customers physically select items in a store.


(3)	Includes commissions and any related fulfillment and shipping fees, and other third-party seller services.


(4)	Includes annual and monthly fees associated with Amazon Prime memberships, as well as audiobook, digital video, e-book, digital music, and other non-AWS subscription services.


(5)	Primarily includes sales of advertising services, as well as sales related to our other service offerings.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

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

Property and equipment, net by segment is as follows (in millions):



	December 31,
	2016		2017		2018
North America	$	10,143	$	20,401	$	27,052
International	3,448		7,425		8,552
AWS	10,300		14,885		18,851
Corporate	5,223		6,155		7,342
Consolidated	$	29,114	$	48,866	$	61,797

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

Total segment assets reconciled to consolidated amounts are as follows (in millions):



	December 31,
	2016		2017		2018
North America (1)	$	22,225	$	35,844	$	47,251
International (1)	10,429		18,014		19,923
AWS (2)	12,698		18,660		26,340
Corporate	38,050		58,792		69,134
Consolidated	$	83,402	$	131,310	$	162,648

___________________


(1)	North America and International segment assets primarily consist of property and equipment, inventory, and accounts receivable.


(2)	AWS segment assets primarily consist of property and equipment and accounts receivable.

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]

Total net additions to property and equipment by segment are as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
North America (1)	$	5,132	$	13,200	$	10,749
International (1)	1,680		5,196		2,476
AWS (2)	5,193		9,190		9,783
Corporate	1,580		2,197		2,060
Consolidated	$	13,585	$	29,783	$	25,068

___________________


(1)	Includes property and equipment added under capital leases of $1.5 billion, $2.9 billion, and $2.0 billion in 2016, 2017, and 2018, and under other financing arrangements of $849 million, $2.9 billion, and $3.0 billion in 2016, 2017, and 2018.


(2)	Includes property and equipment added under capital leases of $4.0 billion, $7.3 billion, and $8.4 billion in 2016, 2017, and 2018, and under finance leases of $75 million, $134 million, and $245 million in 2016, 2017, and 2018.

Total depreciation expense, by segment, is as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
North America	$	1,971	$	3,029	$	4,415
International	930		1,278		1,628
AWS	3,461		4,524		6,095
Consolidated	$	6,362	$	8,831	$	12,138

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

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

Net sales attributed to countries that represent a significant portion of consolidated net sales are as follows (in millions):



	Year Ended December 31,
	2016		2017		2018
United States	$	90,349	$	120,486	$	160,146
Germany	14,148		16,951		19,881
United Kingdom	9,547		11,372		14,524
Japan	10,797		11,907		13,829
Rest of world	11,146		17,150		24,507
Consolidated	$	135,987	$	177,866	$	232,887

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

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

Information on reportable segments and reconciliation to consolidated net income (loss) is as follows (in millions):



	Year Ended December 31,
	2016			2017			2018
North America
Net sales	$	79,785		$	106,110		$	141,366
Operating expenses	77,424			103,273			134,099
Operating income	$	2,361		$	2,837		$	7,267
International
Net sales	$	43,983		$	54,297		$	65,866
Operating expenses	45,266			57,359			68,008
Operating income (loss)	$	(1,283	)	$	(3,062	)	$	(2,142	)
AWS
Net sales	$	12,219		$	17,459		$	25,655
Operating expenses	9,111			13,128			18,359
Operating income	$	3,108		$	4,331		$	7,296
Consolidated
Net sales	$	135,987		$	177,866		$	232,887
Operating expenses	131,801			173,760			220,466
Operating income	4,186			4,106			12,421
Total non-operating income (expense)	(294		)	(300		)	(1,160		)
Provision for income taxes	(1,425		)	(769		)	(1,197		)
Equity-method investment activity, net of tax	(96		)	(4		)	9
Net income	$	2,371		$	3,033		$	10,073

Fact Table
Network	2312301 - Disclosure - Quarterly Results (Unaudited) (Tables) (http://www.amazon.com/role/QuarterlyResultsUnauditedTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0001018724 (http://www.sec.gov/CIK)

2018-01-01 to 2018-12-31

Quarterly Financial Information [Table Text Block]

Unaudited quarterly results are as follows (in millions, except per share data):



	Year Ended December 31, 2017 (1)
	First Quarter			Second Quarter			Third Quarter (2)			Fourth Quarter (2)
Net sales	$	35,714		$	37,955		$	43,744		$	60,453
Operating income	1,005			628			347			2,127
Income before income taxes	953			666			316			1,872
Provision for income taxes	(229		)	(467		)	(58		)	(16		)
Net income	724			197			256			1,856
Basic earnings per share	1.52			0.41			0.53			3.85
Diluted earnings per share	1.48			0.40			0.52			3.75
Shares used in computation of earnings per share:
Basic	477			479			481			483
Diluted	490			492			494			496



	Year Ended December 31, 2018 (1)
	First Quarter			Second Quarter			Third Quarter			Fourth Quarter
Net sales	$	51,042		$	52,886		$	56,576		$	72,383
Operating income	1,927			2,983			3,724			3,786
Income before income taxes	1,916			2,605			3,390			3,350
Provision for income taxes	(287		)	(74		)	(508		)	(327		)
Net income	1,629			2,534			2,883			3,027
Basic earnings per share	3.36			5.21			5.91			6.18
Diluted earnings per share	3.27			5.07			5.75			6.04
Shares used in computation of earnings per share:
Basic	484			486			488			490
Diluted	498			500			501			501

___________________


(1)	The sum of quarterly amounts, including per share amounts, may not equal amounts reported for year-to-date periods. This is due to the effects of rounding and changes in the number of weighted-average shares outstanding for each period.


(2)	We acquired Whole Foods Market on August 28, 2017. The results of Whole Foods Market have been included in our results of operation from the date of acquisition. See Item 8 of Part II, “Financial Statements and Supplementary Data — Note 4 — Acquisitions, Goodwill, and Acquired Intangible Assets” for additional information regarding this transaction.

Fact Table
Network	2401403 - Disclosure - Description of Business and Accounting Policies - Description of Business (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesDescriptionOfBusinessDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Number of Operating Segments	3		amzn:segment	INF

Fact Table
Network	2401404 - Disclosure - Description of Business and Accounting Policies - Calculation of Diluted Shares (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesCalculationOfDilutedSharesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	10000000	xbrli:shares	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	13000000	xbrli:shares	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	13000000	xbrli:shares	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	484000000	xbrli:shares	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Weighted Average Number of Shares Outstanding, Diluted	490000000	xbrli:shares	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Weighted Average Number of Shares Outstanding, Diluted	492000000	xbrli:shares	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Weighted Average Number of Shares Outstanding, Diluted	494000000	xbrli:shares	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	496000000	xbrli:shares	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	493000000	xbrli:shares	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Weighted Average Number of Shares Outstanding, Diluted	498000000	xbrli:shares	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Weighted Average Number of Shares Outstanding, Diluted	500000000	xbrli:shares	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Weighted Average Number of Shares Outstanding, Diluted	501000000	xbrli:shares	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	501000000	xbrli:shares	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	500000000	xbrli:shares	-6
15	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Weighted Average Number of Shares Outstanding, Basic	474000000	xbrli:shares	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Weighted Average Number of Shares Outstanding, Basic	477000000	xbrli:shares	-6
17	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Weighted Average Number of Shares Outstanding, Basic	479000000	xbrli:shares	-6
18	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Weighted Average Number of Shares Outstanding, Basic	481000000	xbrli:shares	-6
19	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Basic	483000000	xbrli:shares	-6
20	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Basic	480000000	xbrli:shares	-6
21	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Weighted Average Number of Shares Outstanding, Basic	484000000	xbrli:shares	-6
22	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Weighted Average Number of Shares Outstanding, Basic	486000000	xbrli:shares	-6
23	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Weighted Average Number of Shares Outstanding, Basic	488000000	xbrli:shares	-6
24	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Basic	490000000	xbrli:shares	-6
25	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Basic	487000000	xbrli:shares	-6

Fact Table
Network	2401405 - Disclosure - Description of Business and Accounting Policies - Revenue (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesRevenueDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Contract with Customer, Refund Liability	567000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Contract with Customer, Refund Liability	468000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contract with Customer, Refund Liability	623000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Contract with Customer, Right to Recover Product	411000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Contract with Customer, Right to Recover Product	406000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contract with Customer, Right to Recover Product	519000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales Returns and Allowances [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	1500000000	iso4217:USD	-8
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales Returns and Allowances [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	1800000000	iso4217:USD	-8
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales Returns and Allowances [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	2300000000	iso4217:USD	-8
10	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Sales Returns and Allowances [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	1500000000	iso4217:USD	-8
11	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Sales Returns and Allowances [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	1900000000	iso4217:USD	-8
12	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Sales Returns and Allowances [Member]	SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	2300000000	iso4217:USD	-8

Fact Table
Network	2401406 - Disclosure - Description of Business and Accounting Policies - Marketing (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesMarketingDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Advertising Expense	5000000000	iso4217:USD	-8
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Advertising Expense	6300000000	iso4217:USD	-8
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Advertising Expense	8200000000	iso4217:USD	-8

Fact Table
Network	2401407 - Disclosure - Description of Business and Accounting Policies - Technology and Content (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesTechnologyAndContentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations

Fact Table
Network	2401408 - Disclosure - Description of Business and Accounting Policies - Other Income (Expense), Net (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesOtherIncomeExpenseNetDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Warrant [Member]	Derivative, Gain (Loss) on Derivative, Net	67000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Warrant [Member]	Derivative, Gain (Loss) on Derivative, Net	109000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Warrant [Member]	Derivative, Gain (Loss) on Derivative, Net	-131000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Derivative Contract [Domain]	Equity Securities, FV-NI, Gain (Loss)	1000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Derivative Contract [Domain]	Equity Securities, FV-NI, Gain (Loss)	18000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Derivative Contract [Domain]	Equity Securities, FV-NI, Gain (Loss)	145000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Foreign Currency Transaction Gain (Loss), before Tax	21000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Foreign Currency Transaction Gain (Loss), before Tax	247000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Foreign Currency Transaction Gain (Loss), before Tax	-206000000	iso4217:USD	-6

Fact Table
Network	2401409 - Disclosure - Description of Business and Accounting Policies - Fair Value of Financial Instruments (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesFairValueOfFinancialInstrumentsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Warrant [Member] * Fair Value, Inputs, Level 2 [Member]	Derivative Asset	441000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Warrant [Member] * Fair Value, Inputs, Level 2 [Member]	Derivative Asset	440000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Warrant [Member] * Fair Value Hierarchy and NAV [Domain]	Derivative, Gain (Loss) on Derivative, Net	67000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Warrant [Member] * Fair Value Hierarchy and NAV [Domain]	Derivative, Gain (Loss) on Derivative, Net	109000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Warrant [Member] * Fair Value Hierarchy and NAV [Domain]	Derivative, Gain (Loss) on Derivative, Net	-131000000	iso4217:USD	-6

Fact Table
Network	2401410 - Disclosure - Description of Business and Accounting Policies - Accounts Receivable, Net and Other (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesAccountsReceivableNetAndOtherDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Receivable [Domain]	Accounts Receivable, Net, Current	13164000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-12-31	amzn:VendorAccountsReceivableMember (label)	Accounts Receivable, Net, Current	2600000000	iso4217:USD	-8
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Loans Receivable [Member]	Accounts Receivable, Net, Current	692000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Trade Accounts Receivable [Member]	Accounts Receivable, Net, Current	6400000000	iso4217:USD	-8
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Receivable [Domain]	Accounts Receivable, Net, Current	16677000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	amzn:VendorAccountsReceivableMember (label)	Accounts Receivable, Net, Current	3200000000	iso4217:USD	-8
7	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Loans Receivable [Member]	Accounts Receivable, Net, Current	710000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Trade Accounts Receivable [Member]	Accounts Receivable, Net, Current	9400000000	iso4217:USD	-8
9	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Receivable [Domain]	Allowance for Doubtful Accounts Receivable, Current	237000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Receivable [Domain]	Allowance for Doubtful Accounts Receivable, Current	348000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Receivable [Domain]	Allowance for Doubtful Accounts Receivable, Current	495000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Receivable [Domain]	Allowance for Doubtful Accounts Receivable, Write-offs	403000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Receivable [Domain]	Allowance for Doubtful Accounts Receivable, Write-offs	515000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Receivable [Domain]	Allowance for Doubtful Accounts Receivable, Write-offs	731000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Receivable [Domain]	Provision for Doubtful Accounts	451000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Receivable [Domain]	Provision for Doubtful Accounts	626000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Receivable [Domain]	Provision for Doubtful Accounts	878000000	iso4217:USD	-6

Fact Table
Network	2401411 - Disclosure - Description of Business and Accounting Policies - Property and Equipment, Net (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesPropertyAndEquipmentNetDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value
1	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Maximum [Member] * Other Machinery and Equipment [Member]	Property, Plant and Equipment, Useful Life	_1610274
2	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Minimum [Member] * Other Machinery and Equipment [Member]	Property, Plant and Equipment, Useful Life	_1610894
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Building [Member]	Property, Plant and Equipment, Useful Life	_1611514
4	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Computer Equipment [Member]	Property, Plant and Equipment, Useful Life	_1612134
5	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Machinery and Equipment [Member]	Property, Plant and Equipment, Useful Life	_1612754
6	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Technology Equipment [Member]	Property, Plant and Equipment, Useful Life	_1613374

Fact Table
Network	2401412 - Disclosure - Description of Business and Accounting Policies - Goodwill (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesGoodwillDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-04-01	null	Goodwill, Impairment Loss	0		iso4217:USD	INF

Fact Table
Network	2401413 - Disclosure - Description of Business and Accounting Policies - Video and Music Content (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesVideoAndMusicContentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:DigitalVideoandMusicContentMember (label) * Maximum [Member]	amzn:OtherAssetAmortizationPeriod (label)	_1606358
2	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:DigitalVideoandMusicContentMember (label) * Minimum [Member]	amzn:OtherAssetAmortizationPeriod (label)	_1606994

Fact Table
Network	2401414 - Disclosure - Description of Business and Accounting Policies - Accrued Expenses and Other (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesAccruedExpensesAndOtherDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Gift Card Liability, Current	3000000000	iso4217:USD	-8
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Gift Card Liability, Current	2800000000	iso4217:USD	-8
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Employee-related Liabilities	2900000000	iso4217:USD	-8
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Employee-related Liabilities	3400000000	iso4217:USD	-8

Fact Table
Network	2401415 - Disclosure - Description of Business and Accounting Policies - Unearned Revenue (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesUnearnedRevenueDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Contract with Customer, Liability	6100000000	iso4217:USD	-8
2	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Contract with Customer, Liability, Noncurrent	1000000000	iso4217:USD	-8
3	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contract with Customer, Liability, Noncurrent	1400000000	iso4217:USD	-8
4	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Contract with Customer, Liability, Revenue Recognized	5300000000	iso4217:USD	-8
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Revenue, Remaining Performance Obligation, Amount	19300000000	iso4217:USD	-8
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	_1601404

Fact Table
Network	2401416 - Disclosure - Description of Business and Accounting Policies - Foreign Currency (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesForeignCurrencyDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Translation Adjustment Functional to Reporting Currency, Increase (Decrease), Gross of Tax	62000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Translation Adjustment Functional to Reporting Currency, Increase (Decrease), Gross of Tax	202000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Translation Adjustment Functional to Reporting Currency, Increase (Decrease), Gross of Tax	-186000000	iso4217:USD	-6

Fact Table
Network	2401417 - Disclosure - Description of Business and Accounting Policies - Accounting Pronouncements Recently Adopted (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesAccountingPronouncementsRecentlyAdoptedDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restatement [Domain] * Type of Adoption [Domain]	amzn:Netchangeincashcashequivalentsandrestrictedcash (label)	3971000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restatement Adjustment [Member] * Accounting Standards Update 2016-18 [Member]	amzn:Netchangeincashcashequivalentsandrestrictedcash (label)	315000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Previously Reported [Member] * Type of Adoption [Domain]	amzn:Netchangeincashcashequivalentsandrestrictedcash (label)	3656000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restatement [Domain] * Type of Adoption [Domain]	amzn:Netchangeincashcashequivalentsandrestrictedcash (label)	1209000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restatement Adjustment [Member] * Accounting Standards Update 2016-18 [Member]	amzn:Netchangeincashcashequivalentsandrestrictedcash (label)	734000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Previously Reported [Member] * Type of Adoption [Domain]	amzn:Netchangeincashcashequivalentsandrestrictedcash (label)	475000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restatement [Domain] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Financing Activities	-3716000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restatement Adjustment [Member] * Accounting Standards Update 2016-18 [Member]	Net Cash Provided by (Used in) Financing Activities	24000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Previously Reported [Member] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Financing Activities	-3740000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restatement [Domain] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Financing Activities	9928000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restatement Adjustment [Member] * Accounting Standards Update 2016-18 [Member]	Net Cash Provided by (Used in) Financing Activities	68000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Previously Reported [Member] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Financing Activities	9860000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restatement [Domain] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Financing Activities	-7686000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restatement [Domain] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Investing Activities	-9516000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restatement Adjustment [Member] * Accounting Standards Update 2016-18 [Member]	Net Cash Provided by (Used in) Investing Activities	360000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Previously Reported [Member] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Investing Activities	-9876000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restatement [Domain] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Investing Activities	-27084000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restatement Adjustment [Member] * Accounting Standards Update 2016-18 [Member]	Net Cash Provided by (Used in) Investing Activities	735000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Previously Reported [Member] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Investing Activities	-27819000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restatement [Domain] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Investing Activities	-12369000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restatement [Domain] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Operating Activities	17203000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Restatement Adjustment [Member] * Accounting Standards Update 2016-18 [Member]	Net Cash Provided by (Used in) Operating Activities	-69000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Previously Reported [Member] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Operating Activities	17272000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restatement [Domain] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Operating Activities	18365000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Restatement Adjustment [Member] * Accounting Standards Update 2016-18 [Member]	Net Cash Provided by (Used in) Operating Activities	-69000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Previously Reported [Member] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Operating Activities	18434000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Restatement [Domain] * Type of Adoption [Domain]	Net Cash Provided by (Used in) Operating Activities	30723000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-03-31	Restatement [Domain] * Accounting Standards Update 2016-16 [Member]	New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	250000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2018-01-01	Restatement [Domain] * Accounting Standards Update 2014-09 [Member]	New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	650000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:ProductSubscriptionMember (label) * Difference between Revenue Guidance in Effect before and after Topic 606 [Member]	Revenues	-3800000000	iso4217:USD	-8
31	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:ServiceSubscriptionMember (label) * Difference between Revenue Guidance in Effect before and after Topic 606 [Member]	Revenues	3800000000	iso4217:USD	-8
32	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Service, Other [Member] * Difference between Revenue Guidance in Effect before and after Topic 606 [Member]	Revenues	3000000000	iso4217:USD	-8

Fact Table
Network	2401418 - Disclosure - Description of Business and Accounting Policies - Accounting Pronouncements Not Yet Adopted (Details) (http://www.amazon.com/role/DescriptionOfBusinessAndAccountingPoliciesAccountingPronouncementsNotYetAdoptedDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2019-01-01	Accounting Standards Update 2016-02 [Member]	amzn:Buildtosuitassets (label)	1500000000	iso4217:USD	-8
2	0001018724 (http://www.sec.gov/CIK)	2019-01-01	Accounting Standards Update 2016-02 [Member]	amzn:Buildtosuitliabilities (label)	1500000000	iso4217:USD	-8
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Type of Adoption [Domain]	amzn:FinanceLeasedAssetsGross (label)	5400000000	iso4217:USD	-8
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Type of Adoption [Domain]	amzn:FinanceLeasedAssetsGross (label)	7500000000	iso4217:USD	-8
5	0001018724 (http://www.sec.gov/CIK)	2019-01-01	Accounting Standards Update 2016-02 [Member]	amzn:FinanceLeasedAssetsGross (label)	1200000000	iso4217:USD	-8
6	0001018724 (http://www.sec.gov/CIK)	2019-01-01	Accounting Standards Update 2016-02 [Member]	Operating Lease, Liability	21000000000	iso4217:USD	-8
7	0001018724 (http://www.sec.gov/CIK)	2019-01-01	Accounting Standards Update 2016-02 [Member]	Operating Lease, Right-of-Use Asset	21000000000	iso4217:USD	-9

Fact Table
Network	2402403 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Fair Values on Recurring Basis (Details) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesFairValuesOnRecurringBasisDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	amzn:CashCashEquivalentsAndShortTermInvestmentsAmortizedCostBasis (label)	32324000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	amzn:CashCashEquivalentsAndShortTermInvestmentsAmortizedCostBasis (label)	41573000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	amzn:CashCashEquivalentsAndShortTermInvestmentsCurrentAndNoncurrent (label)	32321000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	amzn:CashCashEquivalentsAndShortTermInvestmentsCurrentAndNoncurrent (label)	41676000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	amzn:CashCashEquivalentsAndShortTermInvestmentsExcludingRestrictedCashAndInvestments (label)	30986000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	amzn:CashCashEquivalentsAndShortTermInvestmentsExcludingRestrictedCashAndInvestments (label)	41250000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	amzn:EquitySecuritiesFVNIandDebtSecuritiesAvailableforsaleAccumulatedGrossUnrealizedGainbeforetax (label)	32000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	amzn:EquitySecuritiesFVNIandDebtSecuritiesAvailableforsaleAccumulatedGrossUnrealizedGainbeforetax (label)	150000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Asset-backed Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Fixed Income Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Debt Security, Government, Non-US [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * US Treasury and Government [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Asset-backed Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Fixed Income Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Debt Security, Government, Non-US [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * US Treasury and Government [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Asset-backed Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	5000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	9000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Fixed Income Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	2000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Debt Security, Government, Non-US [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * US Treasury and Government [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	19000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	35000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Asset-backed Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	4000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	19000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Fixed Income Securities [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	2000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Debt Security, Government, Non-US [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * US Treasury and Government [Member]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	20000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	47000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Asset-backed Securities [Member]	Debt Securities, Available-for-sale, Amortized Cost	910000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Amortized Cost	4265000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Fixed Income Securities [Member]	Debt Securities, Available-for-sale, Amortized Cost	340000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Debt Security, Government, Non-US [Member]	Debt Securities, Available-for-sale, Amortized Cost	620000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * US Treasury and Government [Member]	Debt Securities, Available-for-sale, Amortized Cost	4841000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Asset-backed Securities [Member]	Debt Securities, Available-for-sale, Amortized Cost	896000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Corporate Debt Securities [Member]	Debt Securities, Available-for-sale, Amortized Cost	5008000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Fixed Income Securities [Member]	Debt Securities, Available-for-sale, Amortized Cost	190000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Debt Security, Government, Non-US [Member]	Debt Securities, Available-for-sale, Amortized Cost	815000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * US Treasury and Government [Member]	Debt Securities, Available-for-sale, Amortized Cost	11686000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Asset-backed Securities [Member]	Debt Securities, Available-for-sale	905000000	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Corporate Debt Securities [Member]	Debt Securities, Available-for-sale	4257000000	iso4217:USD	-6
43	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Fixed Income Securities [Member]	Debt Securities, Available-for-sale	338000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Debt Security, Government, Non-US [Member]	Debt Securities, Available-for-sale	620000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * US Treasury and Government [Member]	Debt Securities, Available-for-sale	4823000000	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Asset-backed Securities [Member]	Debt Securities, Available-for-sale	892000000	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Corporate Debt Securities [Member]	Debt Securities, Available-for-sale	4990000000	iso4217:USD	-6
48	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Fixed Income Securities [Member]	Debt Securities, Available-for-sale	188000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Debt Security, Government, Non-US [Member]	Debt Securities, Available-for-sale	815000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * US Treasury and Government [Member]	Debt Securities, Available-for-sale	11667000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Cash	9982000000	iso4217:USD	-6
52	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Cash	10406000000	iso4217:USD	-6
53	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Money Market Funds [Member] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Cash Equivalents, at Carrying Value	11343000000	iso4217:USD	-6
54	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Money Market Funds [Member] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Cash Equivalents, at Carrying Value	12515000000	iso4217:USD	-6
55	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI	53000000	iso4217:USD	-6
56	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI	170000000	iso4217:USD	-6
57	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI	33000000	iso4217:USD	-6
58	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI, Cost	23000000	iso4217:USD	-6
59	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI, Cost	29000000	iso4217:USD	-6
60	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI, Cost	28000000	iso4217:USD	-6
61	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI, Unrealized Gain	30000000	iso4217:USD	-6
62	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI, Unrealized Gain	143000000	iso4217:USD	-6
63	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI, Unrealized Gain	5000000	iso4217:USD	-6
64	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI, Unrealized Loss	0	iso4217:USD	-6
65	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 1 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI, Unrealized Loss	2000000	iso4217:USD	-6
66	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value, Inputs, Level 2 [Member] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Equity Securities, FV-NI, Unrealized Loss	0	iso4217:USD	-6
67	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Restricted Cash and Investments	1335000000	iso4217:USD	-6
68	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Cash and Cash Equivalents [Domain] * Fair Value Hierarchy and NAV [Domain] * Fair Value, Measurements, Recurring [Member] * Financial Instruments [Domain]	Restricted Cash and Investments	426000000	iso4217:USD	-6

Fact Table
Network	2402404 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Gross Gains and Gross Losses Realized on Sales of Available-For-Sale Marketable Securities (Details) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesGrossGainsAndGrossLossesRealizedOnSalesOfAvailableForSaleMarketableSecuritiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Debt Securities, Available-for-sale, Realized Gain	3000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Debt Securities, Available-for-sale, Realized Gain	5000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Debt Securities, Available-for-sale, Realized Gain	2000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Debt Securities, Available-for-sale, Realized Loss	11000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Debt Securities, Available-for-sale, Realized Loss	11000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Debt Securities, Available-for-sale, Realized Loss	9000000	iso4217:USD	-6

Fact Table
Network	2402405 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Contractual Maturities (Details) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesContractualMaturitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (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, Amortized Cost	187000000	iso4217:USD	-6
2	0001018724 (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	185000000	iso4217:USD	-6
3	0001018724 (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, Amortized Cost	2865000000	iso4217:USD	-6
4	0001018724 (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	2845000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost	538000000	iso4217:USD	-6
6	0001018724 (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	529000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value	31067000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost	31110000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost	27520000000	iso4217:USD	-6
10	0001018724 (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	27508000000	iso4217:USD	-6

Fact Table
Network	2402406 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Reconciliation to Cash Flow (Details) (http://www.amazon.com/role/CashCashEquivalentsAndMarketableSecuritiesReconciliationToCashFlowDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Cash and Cash Equivalents, at Carrying Value	20522000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Cash and Cash Equivalents, at Carrying Value	31750000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2015-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	16175000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	19934000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	21856000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	32173000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Restricted Cash, Current	1329000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Restricted Cash, Current	418000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Restricted Cash, Noncurrent	5000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Restricted Cash, Noncurrent	5000000	iso4217:USD	-6

Fact Table
Network	2403402 - Disclosure - Property and Equipment - Components (Details) (http://www.amazon.com/role/PropertyAndEquipmentComponentsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Property, Plant and Equipment, Type [Domain]	Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	23790000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Property, Plant and Equipment, Type [Domain]	Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	33973000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Property, Plant and Equipment, Type [Domain]	Property, Plant and Equipment, Gross	72656000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Property, Plant and Equipment, Type [Domain]	Property, Plant and Equipment, Gross	95770000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Property, Plant and Equipment, Type [Domain]	Property, Plant and Equipment, Net	48866000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Property, Plant and Equipment, Type [Domain]	Property, Plant and Equipment, Net	61797000000	iso4217:USD	-6

Fact Table
Network	2403403 - Disclosure - Property and Equipment - Additional Information (Details) (http://www.amazon.com/role/PropertyAndEquipmentAdditionalInformationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeasedAssetsGross (label)	5400000000	iso4217:USD	-8
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasedAssetsGross (label)	7500000000	iso4217:USD	-8
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeasesLesseeBalanceSheetAssetsbyMajorClassAccumulatedDepreciation (label)	635000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesLesseeBalanceSheetAssetsbyMajorClassAccumulatedDepreciation (label)	1100000000	iso4217:USD	-8
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Leased Assets, Gross	26400000000	iso4217:USD	-8
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leased Assets, Gross	36100000000	iso4217:USD	-8
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Capital Leases, Income Statement, Amortization Expense	3800000000	iso4217:USD	-8
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Capital Leases, Income Statement, Amortization Expense	5400000000	iso4217:USD	-8
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Capital Leases, Income Statement, Amortization Expense	7300000000	iso4217:USD	-8
10	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	13400000000	iso4217:USD	-8
11	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	19800000000	iso4217:USD	-8
12	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Depreciation	6362000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Depreciation	6400000000	iso4217:USD	-8
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Depreciation	8800000000	iso4217:USD	-8
15	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Depreciation	8831000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Depreciation	12100000000	iso4217:USD	-8
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Depreciation	12138000000	iso4217:USD	-6

Fact Table
Network	2404402 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Additional Information (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsAdditionalInformationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Consideration Transferred	103000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Consideration Transferred	204000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Series of Individually Immaterial Business Acquisitions [Member]	Business Combination, Consideration Transferred	57000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2017-05-12 to 2017-05-12	amzn:SouqGroupLtdMember (label)	Payments to Acquire Businesses, Net of Cash Acquired	583000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-08-28 to 2017-08-28	amzn:WholeFoodsMarketInc.Member (label)	Payments to Acquire Businesses, Net of Cash Acquired	13200000000	iso4217:USD	-8
6	0001018724 (http://www.sec.gov/CIK)	2018-04-12 to 2018-04-12	amzn:RingIncMember (label)	Payments to Acquire Businesses, Net of Cash Acquired	839000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2018-09-11 to 2018-09-11	amzn:PillPackInc.Member (label)	Payments to Acquire Businesses, Net of Cash Acquired	753000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Business Acquisition, Acquiree [Domain]	Payments to Acquire Businesses, Net of Cash Acquired	116000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Business Acquisition, Acquiree [Domain]	Payments to Acquire Businesses, Net of Cash Acquired	13972000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Business Acquisition, Acquiree [Domain]	Payments to Acquire Businesses, Net of Cash Acquired	2186000000	iso4217:USD	-6

Fact Table
Network	2404403 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Allocation of Aggregate Purchase Price of Acquisitions (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsAllocationOfAggregatePurchasePriceOfAcquisitionsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesOther (label)	21000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesOther (label)	1844000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesOther (label)	388000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets (label)	10000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets (label)	1858000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	amzn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets (label)	282000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1444098
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1444742
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1445386
10	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1446030
11	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Contract-Based Intangible Assets [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1446674
12	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Customer-Related Intangible Assets [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1447318
13	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Marketing-Related Intangible Assets [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1447962
14	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Technology-Based Intangible Assets [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1448606
15	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Consideration Transferred	103000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Consideration Transferred	13963000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Consideration Transferred	1649000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Consideration Transferred, Liabilities Incurred	22000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Consideration Transferred, Liabilities Incurred	104000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Consideration Transferred, Liabilities Incurred	31000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	17000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	117000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	174000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	18000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	961000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	159000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	57000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Contract-Based Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	1000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Customer-Related Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	1000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Marketing-Related Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	2000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Technology-Based Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	53000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	2647000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Contract-Based Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	440000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Customer-Related Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	54000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Marketing-Related Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	1987000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Technology-Based Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	166000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	677000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Contract-Based Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	13000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Customer-Related Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	193000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Marketing-Related Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	186000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Technology-Based Intangible Assets [Member]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	285000000	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	5000000	iso4217:USD	-6
43	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	1165000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	176000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	3000000	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	3810000000	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	11000000	iso4217:USD	-6
48	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	103000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	13963000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	1649000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Maximum [Member] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1471642
52	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Minimum [Member] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1472286
53	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Maximum [Member] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1472930
54	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Minimum [Member] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1473574
55	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Maximum [Member] * Business Acquisition, Acquiree [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1474218
56	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Maximum [Member] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1474862
57	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Minimum [Member] * Business Acquisition, Acquiree [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1475506
58	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Minimum [Member] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1476150
59	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Goodwill	3784000000	iso4217:USD	-6
60	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Goodwill	60000000	iso4217:USD	-6
61	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Goodwill	13350000000	iso4217:USD	-6
62	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Goodwill	9501000000	iso4217:USD	-6
63	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Goodwill	14548000000	iso4217:USD	-6
64	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Goodwill	1228000000	iso4217:USD	-6
65	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Payments to Acquire Businesses, Net of Cash Acquired	116000000	iso4217:USD	-6
66	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain] * amzn:TwoThousandSixteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Payments to Acquire Businesses, Net of Cash Acquired	81000000	iso4217:USD	-6
67	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Payments to Acquire Businesses, Net of Cash Acquired	13972000000	iso4217:USD	-6
68	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain] * amzn:TwoThousandSeventeenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Payments to Acquire Businesses, Net of Cash Acquired	13859000000	iso4217:USD	-6
69	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Business Acquisition, Acquiree [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Payments to Acquire Businesses, Net of Cash Acquired	2186000000	iso4217:USD	-6
70	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * amzn:TwoThousandEighteenAcquisitionsMember (label) * Finite-Lived Intangible Assets, Major Class Name [Domain]	Payments to Acquire Businesses, Net of Cash Acquired	1618000000	iso4217:USD	-6

Fact Table
Network	2404404 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Summary of Goodwill Activity by Segment (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsSummaryOfGoodwillActivityBySegmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Segments [Domain]	Goodwill	3784000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-12-31	amzn:AmazonWebServicesSegmentMember (label)	Goodwill	1046000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-12-31	amzn:InternationalSegmentMember (label)	Goodwill	694000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-12-31	amzn:NorthAmericaSegmentMember (label)	Goodwill	2044000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Segments [Domain]	Goodwill	13350000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-12-31	amzn:AmazonWebServicesSegmentMember (label)	Goodwill	1077000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	amzn:InternationalSegmentMember (label)	Goodwill	1108000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-12-31	amzn:NorthAmericaSegmentMember (label)	Goodwill	11165000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Segments [Domain]	Goodwill	14548000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	amzn:AmazonWebServicesSegmentMember (label)	Goodwill	1087000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-12-31	amzn:InternationalSegmentMember (label)	Goodwill	1270000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	amzn:NorthAmericaSegmentMember (label)	Goodwill	12191000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Goodwill, Acquired During Period	9501000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:AmazonWebServicesSegmentMember (label)	Goodwill, Acquired During Period	18000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:InternationalSegmentMember (label)	Goodwill, Acquired During Period	368000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:NorthAmericaSegmentMember (label)	Goodwill, Acquired During Period	9115000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Goodwill, Acquired During Period	1228000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:AmazonWebServicesSegmentMember (label)	Goodwill, Acquired During Period	20000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:InternationalSegmentMember (label)	Goodwill, Acquired During Period	177000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:NorthAmericaSegmentMember (label)	Goodwill, Acquired During Period	1031000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Goodwill, Translation and Purchase Accounting Adjustments	65000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:AmazonWebServicesSegmentMember (label)	Goodwill, Translation and Purchase Accounting Adjustments	13000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:InternationalSegmentMember (label)	Goodwill, Translation and Purchase Accounting Adjustments	46000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:NorthAmericaSegmentMember (label)	Goodwill, Translation and Purchase Accounting Adjustments	6000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Goodwill, Translation and Purchase Accounting Adjustments	-30000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:AmazonWebServicesSegmentMember (label)	Goodwill, Translation and Purchase Accounting Adjustments	-10000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:InternationalSegmentMember (label)	Goodwill, Translation and Purchase Accounting Adjustments	-15000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:NorthAmericaSegmentMember (label)	Goodwill, Translation and Purchase Accounting Adjustments	-5000000	iso4217:USD	-6

Fact Table
Network	2404405 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Acquired Intangible Assets (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsAcquiredIntangibleAssetsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1397816
2	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Contract-Based Intangible Assets [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1398436
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Customer-Related Intangible Assets [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1399056
4	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Marketing-Related Intangible Assets [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1399676
5	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Technology-Based Intangible Assets [Member]	Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	_1400296
6	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Amortization of Intangible Assets	287000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Amortization of Intangible Assets	366000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Amortization of Intangible Assets	475000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Maximum [Member] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1402740
10	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Minimum [Member] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Asset, Useful Life	_1403360
11	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Assets, Accumulated Amortization	1051000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Contract-Based Intangible Assets [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	213000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Customer-Related Intangible Assets [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	168000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Marketing-Related Intangible Assets [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	418000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Technology-Based Intangible Assets [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	252000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Finite-Lived Intangible Assets, Accumulated Amortization	1240000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Contract-Based Intangible Assets [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	224000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Customer-Related Intangible Assets [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	208000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Marketing-Related Intangible Assets [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	431000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Technology-Based Intangible Assets [Member]	Finite-Lived Intangible Assets, Accumulated Amortization	377000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Intangible Assets, Gross (Excluding Goodwill)	4422000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Contract-Based Intangible Assets [Member]	Intangible Assets, Gross (Excluding Goodwill)	1013000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Customer-Related Intangible Assets [Member]	Intangible Assets, Gross (Excluding Goodwill)	283000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Marketing-Related Intangible Assets [Member]	Intangible Assets, Gross (Excluding Goodwill)	2486000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Technology-Based Intangible Assets [Member]	Intangible Assets, Gross (Excluding Goodwill)	640000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Intangible Assets, Gross (Excluding Goodwill)	5350000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Contract-Based Intangible Assets [Member]	Intangible Assets, Gross (Excluding Goodwill)	1430000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Customer-Related Intangible Assets [Member]	Intangible Assets, Gross (Excluding Goodwill)	437000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Marketing-Related Intangible Assets [Member]	Intangible Assets, Gross (Excluding Goodwill)	2542000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Technology-Based Intangible Assets [Member]	Intangible Assets, Gross (Excluding Goodwill)	941000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Intangible Assets, Net (Excluding Goodwill)	3371000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Contract-Based Intangible Assets [Member]	Intangible Assets, Net (Excluding Goodwill)	800000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Customer-Related Intangible Assets [Member]	Intangible Assets, Net (Excluding Goodwill)	115000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Marketing-Related Intangible Assets [Member]	Intangible Assets, Net (Excluding Goodwill)	2068000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Technology-Based Intangible Assets [Member]	Intangible Assets, Net (Excluding Goodwill)	388000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Finite-Lived Intangible Assets, Major Class Name [Domain]	Intangible Assets, Net (Excluding Goodwill)	4110000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Contract-Based Intangible Assets [Member]	Intangible Assets, Net (Excluding Goodwill)	1206000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Customer-Related Intangible Assets [Member]	Intangible Assets, Net (Excluding Goodwill)	229000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Marketing-Related Intangible Assets [Member]	Intangible Assets, Net (Excluding Goodwill)	2111000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Technology-Based Intangible Assets [Member]	Intangible Assets, Net (Excluding Goodwill)	564000000	iso4217:USD	-6

Fact Table
Network	2404406 - Disclosure - Acquisitions, Goodwill, and Acquired Intangible Assets - Expected Future Amortization Expense of Acquired Intangible Assets (Details) (http://www.amazon.com/role/AcquisitionsGoodwillAndAcquiredIntangibleAssetsExpectedFutureAmortizationExpenseOfAcquiredIntangibleAssetsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, after Year Five	2217000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	511000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Year Five	270000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Year Four	323000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Year Three	355000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Amortization Expense, Year Two	412000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Finite-Lived Intangible Assets, Net	4088000000	iso4217:USD	-6

Fact Table
Network	2405402 - Disclosure - Long-Term Debt - Additional Information (Details) (http://www.amazon.com/role/LongTermDebtAdditionalInformationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2018-04-30	Credit Facility [Domain] * Commercial Paper [Member] * Long-term Debt, Type [Domain] * Variable Rate [Domain]	amzn:CommercialPaperMaximumBorrowingCapacity (label)	7000000000	iso4217:USD	-8
2	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-04-30	Revolving Credit Facility [Member] * amzn:UnsecuredRevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	amzn:LineOfCreditFacilityAdditionalTerm (label)	_1366526
3	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-04-30	Revolving Credit Facility [Member] * amzn:UnsecuredRevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	amzn:LineOfCreditFacilityNumberOfExtensions (label)	3	amzn:extension	INF
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Commercial Paper [Member] * Long-term Debt, Type [Domain] * Variable Rate [Domain]	Commercial Paper	0	iso4217:USD	0
5	0001018724 (http://www.sec.gov/CIK)	2016-10-01 to 2016-10-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * London Interbank Offered Rate (LIBOR) [Member]	Debt Instrument, Basis Spread on Variable Rate	0.0165	xbrli:pure	INF
6	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-04-30	Revolving Credit Facility [Member] * amzn:UnsecuredRevolvingCreditFacilityMember (label) * Line of Credit [Member] * London Interbank Offered Rate (LIBOR) [Member]	Debt Instrument, Basis Spread on Variable Rate	0.005	xbrli:pure	4
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Debt Instrument, Collateral Amount	686000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2016-10-01 to 2016-10-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Debt Instrument, Term	_1370480
9	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-04-30	Revolving Credit Facility [Member] * amzn:UnsecuredRevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Debt Instrument, Term	_1371148
10	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-04-30	Credit Facility [Domain] * Commercial Paper [Member] * Long-term Debt, Type [Domain] * Variable Rate [Domain]	Debt Instrument, Term	_1371816
11	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Senior Notes [Member] * Variable Rate [Domain]	Debt Instrument, Unamortized Discount (Premium), Net	99000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Senior Notes [Member] * Variable Rate [Domain]	Debt Instrument, Unamortized Discount (Premium), Net	101000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Long-term Line of Credit	592000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Revolving Credit Facility [Member] * amzn:UnsecuredRevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Long-term Line of Credit	0	iso4217:USD	INF
15	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Long-term Line of Credit	594000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Revolving Credit Facility [Member] * amzn:UnsecuredRevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Long-term Line of Credit	0	iso4217:USD	0
17	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Line of Credit Facility, Maximum Borrowing Capacity	620000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2016-10-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Line of Credit Facility, Maximum Borrowing Capacity	500000000	iso4217:USD	INF
19	0001018724 (http://www.sec.gov/CIK)	2018-04-30	Revolving Credit Facility [Member] * amzn:UnsecuredRevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Line of Credit Facility, Maximum Borrowing Capacity	7000000000	iso4217:USD	-8
20	0001018724 (http://www.sec.gov/CIK)	2016-10-01 to 2016-10-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.005	xbrli:pure	INF
21	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-04-30	Revolving Credit Facility [Member] * amzn:UnsecuredRevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.0004	xbrli:pure	4
22	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Long-term Debt, Type [Domain] * Variable Rate [Domain]	Long-term Debt	24942000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Revolving Credit Facility [Member] * Debt Instrument, Name [Domain] * Line of Credit [Member] * Variable Rate [Domain]	Long-term Debt	592000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * amzn:Amazon.comInc.Member (label) * Variable Rate [Domain]	Long-term Debt	872000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * amzn:WholeFoodsMarketInc.Member (label) * Variable Rate [Domain]	Long-term Debt	128000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * Senior Notes [Member] * Variable Rate [Domain]	Long-term Debt	1000000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * amzn:LineOfCreditAndOtherLongTermDebtMember (label) * Variable Rate [Domain]	Long-term Debt	692000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * amzn:OtherLongTermDebtMember (label) * Variable Rate [Domain]	Long-term Debt	100000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Long-term Debt, Type [Domain] * Variable Rate [Domain]	Long-term Debt	24965000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Revolving Credit Facility [Member] * Debt Instrument, Name [Domain] * Line of Credit [Member] * Variable Rate [Domain]	Long-term Debt	594000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * Senior Notes [Member] * Variable Rate [Domain]	Long-term Debt	1000000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * amzn:LineOfCreditAndOtherLongTermDebtMember (label) * Variable Rate [Domain]	Long-term Debt	715000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * amzn:OtherLongTermDebtMember (label) * Variable Rate [Domain]	Long-term Debt	121000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Senior Notes [Member] * Variable Rate [Domain]	Long-term Debt	24300000000	iso4217:USD	-8
35	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Senior Notes [Member] * Variable Rate [Domain]	Long-term Debt, Fair Value	25700000000	iso4217:USD	-8
36	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Senior Notes [Member] * Variable Rate [Domain]	Long-term Debt, Fair Value	24300000000	iso4217:USD	-8
37	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Long-term Debt, Weighted Average Interest Rate, at Point in Time	0.027	xbrli:pure	3
38	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * amzn:OtherLongTermDebtMember (label) * Variable Rate [Domain]	Long-term Debt, Weighted Average Interest Rate, at Point in Time	0.058	xbrli:pure	3
39	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Revolving Credit Facility [Member] * amzn:October2016RevolvingCreditFacilityMember (label) * Line of Credit [Member] * Variable Rate [Domain]	Long-term Debt, Weighted Average Interest Rate, at Point in Time	0.032	xbrli:pure	3
40	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * amzn:OtherLongTermDebtMember (label) * Variable Rate [Domain]	Long-term Debt, Weighted Average Interest Rate, at Point in Time	0.06	xbrli:pure	3

Fact Table
Network	2405403 - Disclosure - Long-Term Debt - Long-Term Debt Obligations (Details) (http://www.amazon.com/role/LongTermDebtLongTermDebtObligationsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Long-term Debt, Type [Domain]	Long-term Debt, Gross	24842000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Long-term Debt, Type [Domain]	Long-term Debt, Gross	23594000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0302	xbrli:pure	4
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointEightPercentDueDecemberFifthTwoThousandThirtyFourMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0492	xbrli:pure	4
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointNineFivePercentDueDecemberTwentyNineTwoThousandFortyFourMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0511	xbrli:pure	4
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointTwoFivePercentDueAugustTwentySecondTwoThousandFiftySevenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0433	xbrli:pure	4
7	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointZeroFivePercentDueAugustTwentySecondTwoThousandFortySevenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0413	xbrli:pure	4
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesOnePointNinePercentDueAugustTwentyFirstTwoThousandTwentyMemberMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0216	xbrli:pure	4
9	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointEightPercentDueDecemberFifthTwoThousandTwentyFourMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.039	xbrli:pure	4
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointEightSevenFivePercentDueAugustTwentySecondTwoThousandThirtySevenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0394	xbrli:pure	4
11	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointOneFivePercentDueAugustTwentySecondTwoThousandTwentySevenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0325	xbrli:pure	4
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointThreePercentDueDecemberFifthTwoThousandTwentyOneMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0343	xbrli:pure	4
13	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointEightPercentDueAugustTwentySecondTwoThousandTwentyFourMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0295	xbrli:pure	4
14	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointFivePercentDueNovemberTwentyNineTwoThousandTwentyTwoMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0266	xbrli:pure	4
15	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointFourPercentDueFebruaryTwentySecondTwoThousandTwentyThreeMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0256	xbrli:pure	4
16	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointSixPercentDueDecemberFifthTwoThousandNineteenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Effective Percentage	0.0273	xbrli:pure	4
17	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.052	xbrli:pure	INF
18	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointEightPercentDueDecemberFifthTwoThousandThirtyFourMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.048	xbrli:pure	INF
19	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointNineFivePercentDueDecemberTwentyNineTwoThousandFortyFourMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.0495	xbrli:pure	INF
20	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointTwoFivePercentDueAugustTwentySecondTwoThousandFiftySevenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.0425	xbrli:pure	INF
21	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointZeroFivePercentDueAugustTwentySecondTwoThousandFortySevenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.0405	xbrli:pure	INF
22	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesOnePointNinePercentDueAugustTwentyFirstTwoThousandTwentyMemberMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.019	xbrli:pure	INF
23	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointEightPercentDueDecemberFifthTwoThousandTwentyFourMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.038	xbrli:pure	INF
24	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointEightSevenFivePercentDueAugustTwentySecondTwoThousandThirtySevenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.03875	xbrli:pure	INF
25	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointOneFivePercentDueAugustTwentySecondTwoThousandTwentySevenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.0315	xbrli:pure	INF
26	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointThreePercentDueDecemberFifthTwoThousandTwentyOneMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.033	xbrli:pure	INF
27	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointEightPercentDueAugustTwentySecondTwoThousandTwentyFourMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.028	xbrli:pure	INF
28	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointFivePercentDueNovemberTwentyNineTwoThousandTwentyTwoMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.025	xbrli:pure	INF
29	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointFourPercentDueFebruaryTwentySecondTwoThousandTwentyThreeMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.024	xbrli:pure	INF
30	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointSixPercentDueDecemberFifthTwoThousandNineteenMember (label) * Senior Notes [Member]	Debt Instrument, Interest Rate, Stated Percentage	0.026	xbrli:pure	INF
31	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Long-term Debt, Type [Domain]	Long-term Debt	24942000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Revolving Credit Facility [Member] * Debt Instrument, Name [Domain] * Line of Credit [Member]	Long-term Debt	592000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * amzn:Amazon.comInc.Member (label)	Long-term Debt	872000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * amzn:WholeFoodsMarketInc.Member (label)	Long-term Debt	128000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointEightPercentDueDecemberFifthTwoThousandThirtyFourMember (label) * Senior Notes [Member]	Long-term Debt	1250000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointNineFivePercentDueDecemberTwentyNineTwoThousandFortyFourMember (label) * Senior Notes [Member]	Long-term Debt	1500000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointTwoFivePercentDueAugustTwentySecondTwoThousandFiftySevenMember (label) * Senior Notes [Member]	Long-term Debt	2250000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointZeroFivePercentDueAugustTwentySecondTwoThousandFortySevenMember (label) * Senior Notes [Member]	Long-term Debt	3500000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesOnePointNinePercentDueAugustTwentyFirstTwoThousandTwentyMemberMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointEightPercentDueDecemberFifthTwoThousandTwentyFourMember (label) * Senior Notes [Member]	Long-term Debt	1250000000	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointEightSevenFivePercentDueAugustTwentySecondTwoThousandThirtySevenMember (label) * Senior Notes [Member]	Long-term Debt	2750000000	iso4217:USD	-6
43	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointOneFivePercentDueAugustTwentySecondTwoThousandTwentySevenMember (label) * Senior Notes [Member]	Long-term Debt	3500000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointThreePercentDueDecemberFifthTwoThousandTwentyOneMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointEightPercentDueAugustTwentySecondTwoThousandTwentyFourMember (label) * Senior Notes [Member]	Long-term Debt	2000000000	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointFivePercentDueNovemberTwentyNineTwoThousandTwentyTwoMember (label) * Senior Notes [Member]	Long-term Debt	1250000000	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointFourPercentDueFebruaryTwentySecondTwoThousandTwentyThreeMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
48	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointSixPercentDueDecemberFifthTwoThousandNineteenMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * amzn:OtherLongTermDebtMember (label)	Long-term Debt	100000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Long-term Debt, Type [Domain]	Long-term Debt	24965000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Revolving Credit Facility [Member] * Debt Instrument, Name [Domain] * Line of Credit [Member]	Long-term Debt	594000000	iso4217:USD	-6
52	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFivePointTwoPercentDueDecemberThirdTwoThousandTwentyFiveMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
53	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointEightPercentDueDecemberFifthTwoThousandThirtyFourMember (label) * Senior Notes [Member]	Long-term Debt	1250000000	iso4217:USD	-6
54	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointNineFivePercentDueDecemberTwentyNineTwoThousandFortyFourMember (label) * Senior Notes [Member]	Long-term Debt	1500000000	iso4217:USD	-6
55	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointTwoFivePercentDueAugustTwentySecondTwoThousandFiftySevenMember (label) * Senior Notes [Member]	Long-term Debt	2250000000	iso4217:USD	-6
56	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesFourPointZeroFivePercentDueAugustTwentySecondTwoThousandFortySevenMember (label) * Senior Notes [Member]	Long-term Debt	3500000000	iso4217:USD	-6
57	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesOnePointNinePercentDueAugustTwentyFirstTwoThousandTwentyMemberMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
58	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointEightPercentDueDecemberFifthTwoThousandTwentyFourMember (label) * Senior Notes [Member]	Long-term Debt	1250000000	iso4217:USD	-6
59	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointEightSevenFivePercentDueAugustTwentySecondTwoThousandThirtySevenMember (label) * Senior Notes [Member]	Long-term Debt	2750000000	iso4217:USD	-6
60	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointOneFivePercentDueAugustTwentySecondTwoThousandTwentySevenMember (label) * Senior Notes [Member]	Long-term Debt	3500000000	iso4217:USD	-6
61	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesThreePointThreePercentDueDecemberFifthTwoThousandTwentyOneMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
62	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointEightPercentDueAugustTwentySecondTwoThousandTwentyFourMember (label) * Senior Notes [Member]	Long-term Debt	2000000000	iso4217:USD	-6
63	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointFivePercentDueNovemberTwentyNineTwoThousandTwentyTwoMember (label) * Senior Notes [Member]	Long-term Debt	1250000000	iso4217:USD	-6
64	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointFourPercentDueFebruaryTwentySecondTwoThousandTwentyThreeMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
65	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * amzn:SeniorUnsecuredNotesTwoPointSixPercentDueDecemberFifthTwoThousandNineteenMember (label) * Senior Notes [Member]	Long-term Debt	1000000000	iso4217:USD	-6
66	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * amzn:OtherLongTermDebtMember (label)	Long-term Debt	121000000	iso4217:USD	-6
67	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Senior Notes [Member]	Long-term Debt	24300000000	iso4217:USD	-8
68	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Long-term Debt, Type [Domain]	Long-term Debt, Current Maturities	100000000	iso4217:USD	-6
69	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Credit Facility [Domain] * Debt Instrument, Name [Domain] * Long-term Debt, Type [Domain]	Long-term Debt, Current Maturities	1371000000	iso4217:USD	-6

Fact Table
Network	2405404 - Disclosure - Long-Term Debt - Future Principal Payment for Debt (Details) (http://www.amazon.com/role/LongTermDebtFuturePrincipalPaymentForDebtDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Long-term Debt	24942000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt	24965000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal after Year Five	19000000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	1371000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Year Five	1014000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Year Four	1266000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Year Three	1016000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Long-term Debt, Maturities, Repayments of Principal in Year Two	1298000000	iso4217:USD	-6

Fact Table
Network	2406402 - Disclosure - Other Long-Term Liabilities - Other Long Term Liabilities Summary (Details) (http://www.amazon.com/role/OtherLongTermLiabilitiesOtherLongTermLiabilitiesSummaryDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:ConstructionLiabilitiesNoncurrent (label)	1350000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:ConstructionLiabilitiesNoncurrent (label)	2516000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	4700000000	iso4217:USD	-8
4	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	4745000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	6600000000	iso4217:USD	-8
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	6642000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Lease Obligations, Noncurrent	8400000000	iso4217:USD	-8
8	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Lease Obligations, Noncurrent	8438000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Noncurrent	9600000000	iso4217:USD	-8
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Noncurrent	9650000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Income Tax Liabilities, Net	990000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Income Tax Liabilities, Net	1490000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Income Tax Examination, Penalties and Interest Accrued	1004000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Income Tax Examination, Penalties and Interest Accrued	896000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Other Liabilities and Deferred Revenue, Noncurrent	4448000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Liabilities and Deferred Revenue, Noncurrent	6019000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Other Liabilities, Noncurrent	20975000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Liabilities, Noncurrent	27213000000	iso4217:USD	-6

Fact Table
Network	2406403 - Disclosure - Other Long-Term Liabilities - Long Term Capital Lease Obligation (Details) (http://www.amazon.com/role/OtherLongTermLiabilitiesLongTermCapitalLeaseObligationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Lease Obligations, Current	5800000000	iso4217:USD	-8
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Current	7700000000	iso4217:USD	-8
3	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Current	7720000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Lease Obligations, Noncurrent	8400000000	iso4217:USD	-8
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Lease Obligations, Noncurrent	8438000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Noncurrent	9600000000	iso4217:USD	-8
7	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Noncurrent	9650000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments, Interest Included in Payments	582000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments, Net Minimum Payments	17952000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments	17370000000	iso4217:USD	-6

Fact Table
Network	2406404 - Disclosure - Other Long-Term Liabilities - Long Term Finance Lease Obligation (Details) (http://www.amazon.com/role/OtherLongTermLiabilitiesLongTermFinanceLeaseObligationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeaseObligationsCurrent (label)	282000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeaseObligationsCurrent (label)	411000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	4700000000	iso4217:USD	-8
4	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	4745000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	6600000000	iso4217:USD	-8
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	6642000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsInterestIncludedinPayments (label)	1323000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsNetMinimumPayments (label)	8376000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsPresentValueofNetMinimumPayments (label)	7053000000	iso4217:USD	-6

Fact Table
Network	2407402 - Disclosure - Commitments and Contingencies - Commitments (Details) (http://www.amazon.com/role/CommitmentsAndContingenciesCommitmentsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Operating Leases, Rent Expense	1400000000	iso4217:USD	-8
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Operating Leases, Rent Expense	2200000000	iso4217:USD	-8
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Operating Leases, Rent Expense	3400000000	iso4217:USD	-8

Fact Table
Network	2407403 - Disclosure - Commitments and Contingencies - Principal Contractual Commitments Excluding Open Orders (Details) (http://www.amazon.com/role/CommitmentsAndContingenciesPrincipalContractualCommitmentsExcludingOpenOrdersDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeaseObligationsCurrent (label)	282000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeaseObligationsCurrent (label)	411000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	4700000000	iso4217:USD	-8
4	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	4745000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	6600000000	iso4217:USD	-8
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeaseObligationsNoncurrent (label)	6642000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsDue (label)	8376000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsDueInFiveYears (label)	675000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsDueInFourYears (label)	664000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsDueInThreeYears (label)	652000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsDueInTwoYears (label)	640000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsDueNextTwelveMonths (label)	628000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:FinanceLeasesFutureMinimumPaymentsDueThereafter (label)	5117000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:LongTermDebtIncludingInterest (label)	40171000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestAfterYearFive (label)	30013000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths (label)	2277000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFive (label)	1781000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour (label)	2078000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree (label)	1861000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	amzn:LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo (label)	2161000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Lease Obligations, Current	5800000000	iso4217:USD	-8
22	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Current	7700000000	iso4217:USD	-8
23	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Current	7720000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Lease Obligations, Noncurrent	8400000000	iso4217:USD	-8
25	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Capital Lease Obligations, Noncurrent	8438000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Noncurrent	9600000000	iso4217:USD	-8
27	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Lease Obligations, Noncurrent	9650000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments Due	17952000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments Due, Next Twelve Months	7807000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments Due in Five Years	473000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments Due in Four Years	704000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments Due in Three Years	2725000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments Due in Two Years	5742000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Capital Leases, Future Minimum Payments Due Thereafter	501000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contractual Obligation	131013000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contractual Obligation, Due after Fifth Year	62736000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contractual Obligation, Due in Fifth Year	8906000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contractual Obligation, Due in Fourth Year	9860000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contractual Obligation, Due in Next Fiscal Year	19980000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contractual Obligation, Due in Second Year	17171000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Contractual Obligation, Due in Third Year	12360000000	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Due	26666000000	iso4217:USD	-6
43	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments Due, Next Twelve Months	3127000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due in Five Years	2195000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due in Four Years	2473000000	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due in Three Years	2775000000	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due in Two Years	3070000000	iso4217:USD	-6
48	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Operating Leases, Future Minimum Payments, Due Thereafter	13026000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Commitment	15655000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Commitment, Due after Fifth Year	8875000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Commitment, Due in Fifth Year	808000000	iso4217:USD	-6
52	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Commitment, Due in Fourth Year	843000000	iso4217:USD	-6
53	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Commitment, Due in Next Twelve Months	2618000000	iso4217:USD	-6
54	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Commitment, Due in Second Year	1455000000	iso4217:USD	-6
55	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Commitment, Due in Third Year	1056000000	iso4217:USD	-6
56	0001018724 (http://www.sec.gov/CIK)	2015-12-31	null	Unrecognized Tax Benefits	1181000000	iso4217:USD	-6
57	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Unrecognized Tax Benefits	1710000000	iso4217:USD	-6
58	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Unrecognized Tax Benefits	2309000000	iso4217:USD	-6
59	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecognized Tax Benefits	3400000000	iso4217:USD	-8
60	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecognized Tax Benefits	3414000000	iso4217:USD	-6
61	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecorded Unconditional Purchase Obligation, Due within Five Years	2974000000	iso4217:USD	-6
62	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months	3523000000	iso4217:USD	-6
63	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecorded Unconditional Purchase Obligation, Due within Four Years	3098000000	iso4217:USD	-6
64	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecorded Unconditional Purchase Obligation, Due within Two Years	4103000000	iso4217:USD	-6
65	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecorded Unconditional Purchase Obligation, Due within Three Years	3291000000	iso4217:USD	-6
66	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecorded Unconditional Purchase Obligation	22193000000	iso4217:USD	-6
67	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecorded Unconditional Purchase Obligation, Due after Five Years	5204000000	iso4217:USD	-6

Fact Table
Network	2407404 - Disclosure - Commitments and Contingencies - Pledged Assets (Details) (http://www.amazon.com/role/CommitmentsAndContingenciesPledgedAssetsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Other Restricted Assets, Current	1400000000		iso4217:USD	-8
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Other Restricted Assets, Current	575000000		iso4217:USD	-6

Fact Table
Network	2407405 - Disclosure - Commitments and Contingencies - Legal Proceedings (Details) (http://www.amazon.com/role/CommitmentsAndContingenciesLegalProceedingsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-02-28	amzn:LegalProceedingsWithEolasTechnologiesInc.Member (label) * Maximum [Member] * Pending Litigation [Member]	Loss Contingency, Estimate of Possible Loss	250000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-02-28	amzn:LegalProceedingsWithEolasTechnologiesInc.Member (label) * Minimum [Member] * Pending Litigation [Member]	Loss Contingency, Estimate of Possible Loss	130000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2013-10-01 to 2013-10-31	amzn:NationwideBreachOfContractAndUnjustEnrichmentClaimsMember (label) * Range [Domain] * Pending Litigation [Member]	Loss Contingency, New Claims Filed, Number	1	amzn:claim	INF

Fact Table
Network	2408402 - Disclosure - Stockholders' Equity - Additional Information (Details) (http://www.amazon.com/role/StockholdersEquityAdditionalInformationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	amzn:CommonStockSharesOutstandingIncludingNonvestedStockAwards (label)	497000000	xbrli:shares	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	amzn:CommonStockSharesOutstandingIncludingNonvestedStockAwards (label)	504000000	xbrli:shares	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	amzn:CommonStockSharesOutstandingIncludingNonvestedStockAwards (label)	507000000	xbrli:shares	-6
4	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	amzn:EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostExpectedToBeExpensedInNextTwelveMonthsPercentage (label)	0.5	xbrli:pure	INF
5	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate (label)	0.28	xbrli:pure	2
6	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate (label)	0.28	xbrli:pure	2
7	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate (label)	0.27	xbrli:pure	2
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Common Stock, Capital Shares Reserved for Future Issuance	113000000	xbrli:shares	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	6600000000	iso4217:USD	-8
10	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	_1233476
11	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Preferred Stock, Par or Stated Value Per Share	0.01	iso4217:USD/xbrli:shares	INF
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Preferred Stock, Par or Stated Value Per Share	0.01	iso4217:USD/xbrli:shares	INF
13	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Preferred Stock, Shares Authorized	500000000	xbrli:shares	INF
14	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Preferred Stock, Shares Authorized	500000000	xbrli:shares	INF
15	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF
17	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Preferred Stock, Shares Outstanding	0	xbrli:shares	INF
19	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Maximum [Member] * Equity Award [Domain] * Share Repurchase Program [Domain]	Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	_1239104
20	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Minimum [Member] * Equity Award [Domain] * Share Repurchase Program [Domain]	Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	_1239748
21	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain] * Restricted Stock Units (RSUs) [Member] * Share Repurchase Program [Domain]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	4300000000	iso4217:USD	-8
22	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain] * Restricted Stock Units (RSUs) [Member] * Share Repurchase Program [Domain]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	6800000000	iso4217:USD	-8
23	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Restricted Stock Units (RSUs) [Member] * Share Repurchase Program [Domain]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	11400000000	iso4217:USD	-8
24	0001018724 (http://www.sec.gov/CIK)	2016-02-29	Range [Domain] * Equity Award [Domain] * amzn:February2016ProgramMember (label)	Stock Repurchase Program, Authorized Amount	5000000000	iso4217:USD	INF
25	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Stock Repurchased During Period, Value	0	iso4217:USD	0
26	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Stock Repurchased During Period, Value	0	iso4217:USD	0
27	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Range [Domain] * Equity Award [Domain] * Share Repurchase Program [Domain]	Stock Repurchased During Period, Value	0	iso4217:USD	0

Fact Table
Network	2408403 - Disclosure - Stockholders' Equity - Stock-based Compensation Expense (Details) (http://www.amazon.com/role/StockholdersEquityStockBasedCompensationExpenseDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Income Statement Location [Domain]	Allocated Share-based Compensation Expense	2975000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:FulfillmentExpenseMember (label)	Allocated Share-based Compensation Expense	657000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:TechnologyAndContentExpenseMember (label)	Allocated Share-based Compensation Expense	1664000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Cost of Sales [Member]	Allocated Share-based Compensation Expense	16000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	General and Administrative Expense [Member]	Allocated Share-based Compensation Expense	315000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Selling and Marketing Expense [Member]	Allocated Share-based Compensation Expense	323000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Statement Location [Domain]	Allocated Share-based Compensation Expense	4215000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:FulfillmentExpenseMember (label)	Allocated Share-based Compensation Expense	911000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:TechnologyAndContentExpenseMember (label)	Allocated Share-based Compensation Expense	2305000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Cost of Sales [Member]	Allocated Share-based Compensation Expense	47000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	General and Administrative Expense [Member]	Allocated Share-based Compensation Expense	441000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Selling and Marketing Expense [Member]	Allocated Share-based Compensation Expense	511000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Income Statement Location [Domain]	Allocated Share-based Compensation Expense	5418000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:FulfillmentExpenseMember (label)	Allocated Share-based Compensation Expense	1121000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:TechnologyAndContentExpenseMember (label)	Allocated Share-based Compensation Expense	2888000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Cost of Sales [Member]	Allocated Share-based Compensation Expense	73000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	General and Administrative Expense [Member]	Allocated Share-based Compensation Expense	567000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Selling and Marketing Expense [Member]	Allocated Share-based Compensation Expense	769000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Income Statement Location [Domain]	Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	907000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Statement Location [Domain]	Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	860000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Income Statement Location [Domain]	Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	1100000000	iso4217:USD	-8

Fact Table
Network	2408404 - Disclosure - Stockholders' Equity - Restricted Stock Unit Activity (Details) (http://www.amazon.com/role/StockholdersEquityRestrictedStockUnitActivityDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (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, Forfeited in Period	2300000	xbrli:shares	-5
2	0001018724 (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, Forfeited in Period	1800000	xbrli:shares	-5
3	0001018724 (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	2100000	xbrli:shares	-5
4	0001018724 (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, Forfeitures, Weighted Average Grant Date Fair Value	440	iso4217:USD/xbrli:shares	0
5	0001018724 (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, Forfeitures, Weighted Average Grant Date Fair Value	649	iso4217:USD/xbrli:shares	0
6	0001018724 (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	862	iso4217:USD/xbrli:shares	0
7	0001018724 (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	9300000	xbrli:shares	-5
8	0001018724 (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	8900000	xbrli:shares	-5
9	0001018724 (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	5000000	xbrli:shares	-5
10	0001018724 (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	660	iso4217:USD/xbrli:shares	0
11	0001018724 (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	946	iso4217:USD/xbrli:shares	0
12	0001018724 (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	1522	iso4217:USD/xbrli:shares	0
13	0001018724 (http://www.sec.gov/CIK)	2015-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	18900000	xbrli:shares	-5
14	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Restricted Stock Units (RSUs) [Member]	Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	19800000	xbrli:shares	-5
15	0001018724 (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	20100000	xbrli:shares	-5
16	0001018724 (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	15900000	xbrli:shares	-5
17	0001018724 (http://www.sec.gov/CIK)	2015-12-31	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	362	iso4217:USD/xbrli:shares	0
18	0001018724 (http://www.sec.gov/CIK)	2016-12-31	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	506	iso4217:USD/xbrli:shares	0
19	0001018724 (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	725	iso4217:USD/xbrli:shares	0
20	0001018724 (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	1024	iso4217:USD/xbrli:shares	0
21	0001018724 (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	6100000	xbrli:shares	-5
22	0001018724 (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	6800000	xbrli:shares	-5
23	0001018724 (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	7100000	xbrli:shares	-5
24	0001018724 (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, Weighted Average Grant Date Fair Value	321	iso4217:USD/xbrli:shares	0
25	0001018724 (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, Weighted Average Grant Date Fair Value	400	iso4217:USD/xbrli:shares	0
26	0001018724 (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	578	iso4217:USD/xbrli:shares	0

Fact Table
Network	2408405 - Disclosure - Stockholders' Equity - Scheduled Vesting for Outstanding Restricted Stock Units (Details) (http://www.amazon.com/role/StockholdersEquityScheduledVestingForOutstandingRestrictedStockUnitsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Restricted Stock Units (RSUs) [Member]	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingAfterYearFive (label)	100000	xbrli:shares	-5
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Restricted Stock Units (RSUs) [Member]	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingNextTwelveMonths (label)	6900000	xbrli:shares	-5
3	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Restricted Stock Units (RSUs) [Member]	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFive (label)	100000	xbrli:shares	-5
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Restricted Stock Units (RSUs) [Member]	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearFour (label)	800000	xbrli:shares	-5
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Restricted Stock Units (RSUs) [Member]	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearThree (label)	2400000	xbrli:shares	-5
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Restricted Stock Units (RSUs) [Member]	amzn:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingYearTwo (label)	5600000	xbrli:shares	-5
7	0001018724 (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	15900000	xbrli:shares	-5

Fact Table
Network	2410402 - Disclosure - Income Taxes - Additional Information (Details) (http://www.amazon.com/role/IncomeTaxesAdditionalInformationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	amzn:TaxCutsAndJobsActOf2017ProvisionalIncomeTaxBenefit (label)	-789000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-10-04 to 2017-10-04	Foreign Tax Authority [Member] * amzn:LuxembourgTaxAdministrationMember (label) * Tax Credit Carryforward, Name [Domain]	Income Tax Examination, Estimate of Possible Loss	250000000	iso4217:EUR	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Domestic Tax Authority [Member] * Internal Revenue Service (IRS) [Member] * Tax Credit Carryforward, Name [Domain]	Income Tax Examination, Estimate of Possible Loss	1500000000	iso4217:USD	-8
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1400000000	iso4217:USD	-8
5	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1425000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Income Tax Expense (Benefit)	229000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Income Tax Expense (Benefit)	467000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Income Tax Expense (Benefit)	58000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Income Tax Expense (Benefit)	16000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Tax Expense (Benefit)	769000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Income Tax Expense (Benefit)	287000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Income Tax Expense (Benefit)	74000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Income Tax Expense (Benefit)	508000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Income Tax Expense (Benefit)	327000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Tax Expense (Benefit)	1197000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Taxes Paid, Net	412000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Taxes Paid, Net	957000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Taxes Paid, Net	1184000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Domestic Tax Authority [Member] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Operating Loss Carryforwards	627000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Foreign Tax Authority [Member] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Operating Loss Carryforwards	7800000000	iso4217:USD	-8
21	0001018724 (http://www.sec.gov/CIK)	2018-12-31	State and Local Jurisdiction [Member] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Operating Loss Carryforwards	919000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Income Tax Authority [Domain] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Tax Credit Carryforward, Amount	1700000000	iso4217:USD	-8
23	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Domestic Tax Authority [Member] * Income Tax Authority, Name [Domain] * Capital Loss Carryforward [Member]	Tax Credit Carryforward, Amount	261000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Income Tax Authority [Domain] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	107000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Income Tax Authority [Domain] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	127000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Income Tax Authority [Domain] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	9000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Income Tax Authority [Domain] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	40000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Income Tax Authority [Domain] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	20000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-06-30	Income Tax Authority [Domain] * Income Tax Authority, Name [Domain] * Tax Credit Carryforward, Name [Domain]	Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	600000000	iso4217:USD	-6

Fact Table
Network	2410403 - Disclosure - Income Taxes - Components of Provision for Income Taxes, Net (Details) (http://www.amazon.com/role/IncomeTaxesComponentsOfProvisionForIncomeTaxesNetDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Current Federal Tax Expense (Benefit)	1136000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Current Federal Tax Expense (Benefit)	-137000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Current Federal Tax Expense (Benefit)	-129000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Current Foreign Tax Expense (Benefit)	327000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Current Foreign Tax Expense (Benefit)	724000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Current Foreign Tax Expense (Benefit)	563000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Current Income Tax Expense (Benefit)	1671000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Current Income Tax Expense (Benefit)	798000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Current Income Tax Expense (Benefit)	756000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Current State and Local Tax Expense (Benefit)	208000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Current State and Local Tax Expense (Benefit)	211000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Current State and Local Tax Expense (Benefit)	322000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Deferred Federal Income Tax Expense (Benefit)	116000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Deferred Federal Income Tax Expense (Benefit)	-202000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Deferred Federal Income Tax Expense (Benefit)	565000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Deferred Foreign Income Tax Expense (Benefit)	-331000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Deferred Foreign Income Tax Expense (Benefit)	199000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Deferred Foreign Income Tax Expense (Benefit)	-129000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Deferred Income Tax Expense (Benefit)	-246000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Deferred Income Tax Expense (Benefit)	-29000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Deferred Income Tax Expense (Benefit)	441000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Deferred State and Local Income Tax Expense (Benefit)	-31000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Deferred State and Local Income Tax Expense (Benefit)	-26000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Deferred State and Local Income Tax Expense (Benefit)	5000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1400000000	iso4217:USD	-8
26	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1425000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Income Tax Expense (Benefit)	229000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Income Tax Expense (Benefit)	467000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Income Tax Expense (Benefit)	58000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Income Tax Expense (Benefit)	16000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Tax Expense (Benefit)	769000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Income Tax Expense (Benefit)	287000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Income Tax Expense (Benefit)	74000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Income Tax Expense (Benefit)	508000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Income Tax Expense (Benefit)	327000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Tax Expense (Benefit)	1197000000	iso4217:USD	-6

Fact Table
Network	2410404 - Disclosure - Income Taxes - U.S. and International Components of Income Before Income Taxes (Details) (http://www.amazon.com/role/IncomeTaxesUSAndInternationalComponentsOfIncomeBeforeIncomeTaxesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income (Loss) from Continuing Operations before Income Taxes, Domestic	4551000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income (Loss) from Continuing Operations before Income Taxes, Domestic	5630000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income (Loss) from Continuing Operations before Income Taxes, Domestic	11157000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income (Loss) from Continuing Operations before Income Taxes, Foreign	-659000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income (Loss) from Continuing Operations before Income Taxes, Foreign	-1824000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income (Loss) from Continuing Operations before Income Taxes, Foreign	104000000	iso4217:USD	-6
7	0001018724 (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	3892000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	953000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	666000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	316000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	1872000000	iso4217:USD	-6
12	0001018724 (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	3806000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	1916000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	2605000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	3390000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	3350000000	iso4217:USD	-6
17	0001018724 (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	11261000000	iso4217:USD	-6

Fact Table
Network	2410405 - Disclosure - Income Taxes - Items Accounting for Differences Between Income Taxes Computed at Federal Statutory Rate and Provision Recorded for Income Taxes (Details) (http://www.amazon.com/role/IncomeTaxesItemsAccountingForDifferencesBetweenIncomeTaxesComputedAtFederalStatutoryRateAndProvisionRecordedForIncomeTaxesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	amzn:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Amount (label)	0	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	amzn:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Amount (label)	-789000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	amzn:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Amount (label)	-157000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount	1300000000	iso4217:USD	-8
5	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount	1600000000	iso4217:USD	-8
6	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1400000000	iso4217:USD	-8
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1425000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Income Tax Expense (Benefit)	229000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Income Tax Expense (Benefit)	467000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Income Tax Expense (Benefit)	58000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Income Tax Expense (Benefit)	16000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Tax Expense (Benefit)	769000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Income Tax Expense (Benefit)	287000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Income Tax Expense (Benefit)	74000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Income Tax Expense (Benefit)	508000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Income Tax Expense (Benefit)	327000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Tax Expense (Benefit)	1197000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount	94000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount	0	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount	0	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	-69000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	1178000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	119000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	1362000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	1332000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	2365000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount	189000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount	-917000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount	-1086000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	46000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	71000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	112000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	110000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	114000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	263000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Effective Income Tax Rate Reconciliation, Tax Credit, Amount	119000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Effective Income Tax Rate Reconciliation, Tax Credit, Amount	220000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Effective Income Tax Rate Reconciliation, Tax Credit, Amount	419000000	iso4217:USD	-6

Fact Table
Network	2410406 - Disclosure - Income Taxes - Deferred Income Tax Assets and Liabilities (Details) (http://www.amazon.com/role/IncomeTaxesDeferredIncomeTaxAssetsAndLiabilitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Deferred Income	349000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Deferred Income	321000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Gross	5498000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Gross	8734000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Investments	35000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Investments	69000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Net of Valuation Allowance	2960000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Net of Valuation Allowance	3784000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Operating Loss Carryforwards, Domestic	211000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Operating Loss Carryforwards, Domestic	222000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Operating Loss Carryforwards, Foreign	2149000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Operating Loss Carryforwards, Foreign	2551000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Other	167000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Other	94000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Property, Plant and Equipment	279000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Property, Plant and Equipment	2386000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Tax Credit Carryforwards	381000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Tax Credit Carryforwards	734000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	1026000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	1293000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals	901000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals	1064000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Assets, Valuation Allowance	2538000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Assets, Valuation Allowance	4950000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Liabilities, Net	197000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Net	544000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Liabilities, Intangible Assets	531000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Intangible Assets	682000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Liabilities, Other	58000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Other	67000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Deferred Tax Liabilities, Property, Plant and Equipment	2568000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Deferred Tax Liabilities, Property, Plant and Equipment	3579000000	iso4217:USD	-6

Fact Table
Network	2410407 - Disclosure - Income Taxes - Reconciliation of Tax Contingencies (Details) (http://www.amazon.com/role/IncomeTaxesReconciliationOfTaxContingenciesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2015-12-31	null	Unrecognized Tax Benefits	1181000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-12-31	null	Unrecognized Tax Benefits	1710000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2017-12-31	null	Unrecognized Tax Benefits	2309000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecognized Tax Benefits	3400000000	iso4217:USD	-8
5	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecognized Tax Benefits	3414000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	133000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	139000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	90000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	0	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	0	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	36000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	308000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	518000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	1088000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	355000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	223000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	164000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	1000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	3000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	21000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2018-12-31	null	Unrecognized Tax Benefits that Would Impact Effective Tax Rate	1700000000	iso4217:USD	-8

Fact Table
Network	2411402 - Disclosure - Segment Information - Additional Information (Details) (http://www.amazon.com/role/SegmentInformationAdditionalInformationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Number of Operating Segments	3	amzn:segment	INF
2	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Geographical [Domain]	Property, Plant and Equipment, Net	29114000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-12-31	UNITED STATES	Property, Plant and Equipment, Net	22000000000	iso4217:USD	-8
4	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Non-US [Member]	Property, Plant and Equipment, Net	7100000000	iso4217:USD	-8
5	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Geographical [Domain]	Property, Plant and Equipment, Net	48866000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-12-31	UNITED STATES	Property, Plant and Equipment, Net	35500000000	iso4217:USD	-8
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Non-US [Member]	Property, Plant and Equipment, Net	13400000000	iso4217:USD	-8
8	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Geographical [Domain]	Property, Plant and Equipment, Net	61797000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-12-31	UNITED STATES	Property, Plant and Equipment, Net	45100000000	iso4217:USD	-8
10	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Non-US [Member]	Property, Plant and Equipment, Net	16700000000	iso4217:USD	-8

Fact Table
Network	2411403 - Disclosure - Segment Information - Reportable Segments and Reconciliation to Consolidated Net Income (Details) (http://www.amazon.com/role/SegmentInformationReportableSegmentsAndReconciliationToConsolidatedNetIncomeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Costs and Expenses	131801000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:AmazonWebServicesSegmentMember (label)	Costs and Expenses	9111000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:InternationalSegmentMember (label)	Costs and Expenses	45266000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:NorthAmericaSegmentMember (label)	Costs and Expenses	77424000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Costs and Expenses	173760000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:AmazonWebServicesSegmentMember (label)	Costs and Expenses	13128000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:InternationalSegmentMember (label)	Costs and Expenses	57359000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:NorthAmericaSegmentMember (label)	Costs and Expenses	103273000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Costs and Expenses	220466000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:AmazonWebServicesSegmentMember (label)	Costs and Expenses	18359000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:InternationalSegmentMember (label)	Costs and Expenses	68008000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:NorthAmericaSegmentMember (label)	Costs and Expenses	134099000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Income (Loss) from Equity Method Investments	-96000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Income (Loss) from Equity Method Investments	-4000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Income (Loss) from Equity Method Investments	9000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Income Tax Expense (Benefit)	1400000000	iso4217:USD	-8
17	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Income Tax Expense (Benefit)	1425000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	Segments [Domain]	Income Tax Expense (Benefit)	229000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Segments [Domain]	Income Tax Expense (Benefit)	467000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	Segments [Domain]	Income Tax Expense (Benefit)	58000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	Segments [Domain]	Income Tax Expense (Benefit)	16000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Income Tax Expense (Benefit)	769000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	Segments [Domain]	Income Tax Expense (Benefit)	287000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Segments [Domain]	Income Tax Expense (Benefit)	74000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	Segments [Domain]	Income Tax Expense (Benefit)	508000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	Segments [Domain]	Income Tax Expense (Benefit)	327000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Income Tax Expense (Benefit)	1197000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Net Income (Loss) Attributable to Parent	2371000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	Segments [Domain]	Net Income (Loss) Attributable to Parent	724000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Segments [Domain]	Net Income (Loss) Attributable to Parent	197000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	Segments [Domain]	Net Income (Loss) Attributable to Parent	256000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	Segments [Domain]	Net Income (Loss) Attributable to Parent	1856000000	iso4217:USD	-6
33	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Net Income (Loss) Attributable to Parent	3033000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	Segments [Domain]	Net Income (Loss) Attributable to Parent	1629000000	iso4217:USD	-6
35	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Segments [Domain]	Net Income (Loss) Attributable to Parent	2534000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	Segments [Domain]	Net Income (Loss) Attributable to Parent	2883000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	Segments [Domain]	Net Income (Loss) Attributable to Parent	3027000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Net Income (Loss) Attributable to Parent	10073000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Nonoperating Income (Expense)	-294000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Nonoperating Income (Expense)	-300000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Nonoperating Income (Expense)	-1160000000	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Operating Income (Loss)	4186000000	iso4217:USD	-6
43	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:AmazonWebServicesSegmentMember (label)	Operating Income (Loss)	3108000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:InternationalSegmentMember (label)	Operating Income (Loss)	-1283000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:NorthAmericaSegmentMember (label)	Operating Income (Loss)	2361000000	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	Segments [Domain]	Operating Income (Loss)	1005000000	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Segments [Domain]	Operating Income (Loss)	628000000	iso4217:USD	-6
48	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	Segments [Domain]	Operating Income (Loss)	347000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	Segments [Domain]	Operating Income (Loss)	2127000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Operating Income (Loss)	4106000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:AmazonWebServicesSegmentMember (label)	Operating Income (Loss)	4331000000	iso4217:USD	-6
52	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:InternationalSegmentMember (label)	Operating Income (Loss)	-3062000000	iso4217:USD	-6
53	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:NorthAmericaSegmentMember (label)	Operating Income (Loss)	2837000000	iso4217:USD	-6
54	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	Segments [Domain]	Operating Income (Loss)	1927000000	iso4217:USD	-6
55	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Segments [Domain]	Operating Income (Loss)	2983000000	iso4217:USD	-6
56	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	Segments [Domain]	Operating Income (Loss)	3724000000	iso4217:USD	-6
57	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	Segments [Domain]	Operating Income (Loss)	3786000000	iso4217:USD	-6
58	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Operating Income (Loss)	12421000000	iso4217:USD	-6
59	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:AmazonWebServicesSegmentMember (label)	Operating Income (Loss)	7296000000	iso4217:USD	-6
60	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:InternationalSegmentMember (label)	Operating Income (Loss)	-2142000000	iso4217:USD	-6
61	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:NorthAmericaSegmentMember (label)	Operating Income (Loss)	7267000000	iso4217:USD	-6
62	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	135987000000	iso4217:USD	-6
63	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:AmazonWebServicesSegmentMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	12219000000	iso4217:USD	-6
64	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:InternationalSegmentMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	43983000000	iso4217:USD	-6
65	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:NorthAmericaSegmentMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	79785000000	iso4217:USD	-6
66	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	35714000000	iso4217:USD	-6
67	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	37955000000	iso4217:USD	-6
68	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	43744000000	iso4217:USD	-6
69	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	60453000000	iso4217:USD	-6
70	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	177866000000	iso4217:USD	-6
71	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:AmazonWebServicesSegmentMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	17459000000	iso4217:USD	-6
72	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:InternationalSegmentMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	54297000000	iso4217:USD	-6
73	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:NorthAmericaSegmentMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	106110000000	iso4217:USD	-6
74	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	51042000000	iso4217:USD	-6
75	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	52886000000	iso4217:USD	-6
76	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	56576000000	iso4217:USD	-6
77	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	72383000000	iso4217:USD	-6
78	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	232887000000	iso4217:USD	-6
79	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:AmazonWebServicesSegmentMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	25655000000	iso4217:USD	-6
80	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:InternationalSegmentMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	65866000000	iso4217:USD	-6
81	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:NorthAmericaSegmentMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	141366000000	iso4217:USD	-6

Fact Table
Network	2411404 - Disclosure - Segment Information - Disaggregation of Revenue (Details) (http://www.amazon.com/role/SegmentInformationDisaggregationOfRevenueDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	135987000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:AmazonWebServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	12219000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:OnlineStoresMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	91431000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:OtherServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	2950000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:PhysicalStoresMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	0	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:SubscriptionServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	6394000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:ThirdPartySellerServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	22993000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	35714000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	37955000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	43744000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	60453000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	177866000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:AmazonWebServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	17459000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:OnlineStoresMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	108354000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:OtherServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	4653000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:PhysicalStoresMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	5798000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:SubscriptionServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	9721000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:ThirdPartySellerServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	31881000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	51042000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	52886000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	56576000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	72383000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Product and Service [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	232887000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:AmazonWebServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	25655000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:OnlineStoresMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	122987000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:OtherServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	10108000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:PhysicalStoresMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	17224000000	iso4217:USD	-6
28	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:SubscriptionServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	14168000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:ThirdPartySellerServicesMember (label)	Revenue from Contract with Customer, Excluding Assessed Tax	42745000000	iso4217:USD	-6

Fact Table
Network	2411405 - Disclosure - Segment Information Net Sales Attributed to Countries Representing Portion of Consolidated Net Sales (Details) (http://www.amazon.com/role/SegmentInformationNetSalesAttributedToCountriesRepresentingPortionOfConsolidatedNetSalesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	135987000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	GERMANY	Revenue from Contract with Customer, Excluding Assessed Tax	14148000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	UNITED KINGDOM	Revenue from Contract with Customer, Excluding Assessed Tax	9547000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	JAPAN	Revenue from Contract with Customer, Excluding Assessed Tax	10797000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	UNITED STATES	Revenue from Contract with Customer, Excluding Assessed Tax	90349000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Non-US [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	11146000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	35714000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	37955000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	43744000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	60453000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	177866000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	GERMANY	Revenue from Contract with Customer, Excluding Assessed Tax	16951000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	UNITED KINGDOM	Revenue from Contract with Customer, Excluding Assessed Tax	11372000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	JAPAN	Revenue from Contract with Customer, Excluding Assessed Tax	11907000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	UNITED STATES	Revenue from Contract with Customer, Excluding Assessed Tax	120486000000	iso4217:USD	-6
16	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Non-US [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	17150000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	51042000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	52886000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	56576000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	72383000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Geographical [Domain]	Revenue from Contract with Customer, Excluding Assessed Tax	232887000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	GERMANY	Revenue from Contract with Customer, Excluding Assessed Tax	19881000000	iso4217:USD	-6
23	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	UNITED KINGDOM	Revenue from Contract with Customer, Excluding Assessed Tax	14524000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	JAPAN	Revenue from Contract with Customer, Excluding Assessed Tax	13829000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	UNITED STATES	Revenue from Contract with Customer, Excluding Assessed Tax	160146000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Non-US [Member]	Revenue from Contract with Customer, Excluding Assessed Tax	24507000000	iso4217:USD	-6

Fact Table
Network	2411406 - Disclosure - Segment Information - Reconciliation of Assets from Segment to Consolidated (Details) (http://www.amazon.com/role/SegmentInformationReconciliationOfAssetsFromSegmentToConsolidatedDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Consolidation Items [Domain] * Segments [Domain]	Assets	83402000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Corporate, Non-Segment [Member] * Segments [Domain]	Assets	38050000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Operating Segments [Member] * amzn:AmazonWebServicesSegmentMember (label)	Assets	12698000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Operating Segments [Member] * amzn:InternationalSegmentMember (label)	Assets	10429000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Operating Segments [Member] * amzn:NorthAmericaSegmentMember (label)	Assets	22225000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Consolidation Items [Domain] * Segments [Domain]	Assets	131310000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Corporate, Non-Segment [Member] * Segments [Domain]	Assets	58792000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Operating Segments [Member] * amzn:AmazonWebServicesSegmentMember (label)	Assets	18660000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Operating Segments [Member] * amzn:InternationalSegmentMember (label)	Assets	18014000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Operating Segments [Member] * amzn:NorthAmericaSegmentMember (label)	Assets	35844000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Consolidation Items [Domain] * Segments [Domain]	Assets	162648000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Corporate, Non-Segment [Member] * Segments [Domain]	Assets	69134000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Operating Segments [Member] * amzn:AmazonWebServicesSegmentMember (label)	Assets	26340000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Operating Segments [Member] * amzn:InternationalSegmentMember (label)	Assets	19923000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Operating Segments [Member] * amzn:NorthAmericaSegmentMember (label)	Assets	47251000000	iso4217:USD	-6

Fact Table
Network	2411407 - Disclosure - Segment Information - Reconciliation of Property and Equipment from Segments to Consolidated (Details) (http://www.amazon.com/role/SegmentInformationReconciliationOfPropertyAndEquipmentFromSegmentsToConsolidatedDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Consolidation Items [Domain] * Segments [Domain]	Property, Plant and Equipment, Net	29114000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Corporate, Non-Segment [Member] * Segments [Domain]	Property, Plant and Equipment, Net	5223000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Operating Segments [Member] * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Net	10300000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Operating Segments [Member] * amzn:InternationalSegmentMember (label)	Property, Plant and Equipment, Net	3448000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2016-12-31	Operating Segments [Member] * amzn:NorthAmericaSegmentMember (label)	Property, Plant and Equipment, Net	10143000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Consolidation Items [Domain] * Segments [Domain]	Property, Plant and Equipment, Net	48866000000	iso4217:USD	-6
7	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Corporate, Non-Segment [Member] * Segments [Domain]	Property, Plant and Equipment, Net	6155000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Operating Segments [Member] * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Net	14885000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Operating Segments [Member] * amzn:InternationalSegmentMember (label)	Property, Plant and Equipment, Net	7425000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-12-31	Operating Segments [Member] * amzn:NorthAmericaSegmentMember (label)	Property, Plant and Equipment, Net	20401000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Consolidation Items [Domain] * Segments [Domain]	Property, Plant and Equipment, Net	61797000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Corporate, Non-Segment [Member] * Segments [Domain]	Property, Plant and Equipment, Net	7342000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Operating Segments [Member] * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Net	18851000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Operating Segments [Member] * amzn:InternationalSegmentMember (label)	Property, Plant and Equipment, Net	8552000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-12-31	Operating Segments [Member] * amzn:NorthAmericaSegmentMember (label)	Property, Plant and Equipment, Net	27052000000	iso4217:USD	-6

Fact Table
Network	2411408 - Disclosure - Segment Information - Reconciliation of Property and Equipment Additions from Segments to Consolidated (Details) (http://www.amazon.com/role/SegmentInformationReconciliationOfPropertyAndEquipmentAdditionsFromSegmentsToConsolidatedDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Consolidation Items [Domain] * Property, Plant and Equipment, Type [Domain] * Segments [Domain]	Property, Plant and Equipment, Additions	13585000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Corporate, Non-Segment [Member] * Property, Plant and Equipment, Type [Domain] * Segments [Domain]	Property, Plant and Equipment, Additions	1580000000	iso4217:USD	-6
3	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member] * amzn:AssetsUnderOtherFinancingArrangementsMember (label) * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Additions	75000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member] * amzn:AssetsUnderOtherFinancingArrangementsMember (label) * amzn:NorthAmericaAndInternationalSegmentMember (label)	Property, Plant and Equipment, Additions	849000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member] * Assets Held under Capital Leases [Member] * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Additions	4000000000	iso4217:USD	-8
6	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member] * Assets Held under Capital Leases [Member] * amzn:NorthAmericaAndInternationalSegmentMember (label)	Property, Plant and Equipment, Additions	1500000000	iso4217:USD	-8
7	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member] * Property, Plant and Equipment, Type [Domain] * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Additions	5193000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member] * Property, Plant and Equipment, Type [Domain] * amzn:InternationalSegmentMember (label)	Property, Plant and Equipment, Additions	1680000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Operating Segments [Member] * Property, Plant and Equipment, Type [Domain] * amzn:NorthAmericaSegmentMember (label)	Property, Plant and Equipment, Additions	5132000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Consolidation Items [Domain] * Property, Plant and Equipment, Type [Domain] * Segments [Domain]	Property, Plant and Equipment, Additions	29783000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Corporate, Non-Segment [Member] * Property, Plant and Equipment, Type [Domain] * Segments [Domain]	Property, Plant and Equipment, Additions	2197000000	iso4217:USD	-6
12	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member] * amzn:AssetsUnderOtherFinancingArrangementsMember (label) * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Additions	134000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member] * amzn:AssetsUnderOtherFinancingArrangementsMember (label) * amzn:NorthAmericaAndInternationalSegmentMember (label)	Property, Plant and Equipment, Additions	2900000000	iso4217:USD	-8
14	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member] * Assets Held under Capital Leases [Member] * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Additions	7300000000	iso4217:USD	-8
15	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member] * Assets Held under Capital Leases [Member] * amzn:NorthAmericaAndInternationalSegmentMember (label)	Property, Plant and Equipment, Additions	2900000000	iso4217:USD	-8
16	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member] * Property, Plant and Equipment, Type [Domain] * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Additions	9190000000	iso4217:USD	-6
17	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member] * Property, Plant and Equipment, Type [Domain] * amzn:InternationalSegmentMember (label)	Property, Plant and Equipment, Additions	5196000000	iso4217:USD	-6
18	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Operating Segments [Member] * Property, Plant and Equipment, Type [Domain] * amzn:NorthAmericaSegmentMember (label)	Property, Plant and Equipment, Additions	13200000000	iso4217:USD	-6
19	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Consolidation Items [Domain] * Property, Plant and Equipment, Type [Domain] * Segments [Domain]	Property, Plant and Equipment, Additions	25068000000	iso4217:USD	-6
20	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Corporate, Non-Segment [Member] * Property, Plant and Equipment, Type [Domain] * Segments [Domain]	Property, Plant and Equipment, Additions	2060000000	iso4217:USD	-6
21	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member] * amzn:AssetsUnderOtherFinancingArrangementsMember (label) * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Additions	245000000	iso4217:USD	-6
22	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member] * amzn:AssetsUnderOtherFinancingArrangementsMember (label) * amzn:NorthAmericaAndInternationalSegmentMember (label)	Property, Plant and Equipment, Additions	3000000000	iso4217:USD	-8
23	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member] * Assets Held under Capital Leases [Member] * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Additions	8400000000	iso4217:USD	-8
24	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member] * Assets Held under Capital Leases [Member] * amzn:NorthAmericaAndInternationalSegmentMember (label)	Property, Plant and Equipment, Additions	2000000000	iso4217:USD	-8
25	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member] * Property, Plant and Equipment, Type [Domain] * amzn:AmazonWebServicesSegmentMember (label)	Property, Plant and Equipment, Additions	9783000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member] * Property, Plant and Equipment, Type [Domain] * amzn:InternationalSegmentMember (label)	Property, Plant and Equipment, Additions	2476000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Operating Segments [Member] * Property, Plant and Equipment, Type [Domain] * amzn:NorthAmericaSegmentMember (label)	Property, Plant and Equipment, Additions	10749000000	iso4217:USD	-6

Fact Table
Network	2411409 - Disclosure - Segment Information - Depreciation Expense, by Segment (Details) (http://www.amazon.com/role/SegmentInformationDepreciationExpenseBySegmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Depreciation	6362000000	iso4217:USD	-6
2	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	Segments [Domain]	Depreciation	6400000000	iso4217:USD	-8
3	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:AmazonWebServicesSegmentMember (label)	Depreciation	3461000000	iso4217:USD	-6
4	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:InternationalSegmentMember (label)	Depreciation	930000000	iso4217:USD	-6
5	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	amzn:NorthAmericaSegmentMember (label)	Depreciation	1971000000	iso4217:USD	-6
6	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Depreciation	8800000000	iso4217:USD	-8
7	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	Segments [Domain]	Depreciation	8831000000	iso4217:USD	-6
8	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:AmazonWebServicesSegmentMember (label)	Depreciation	4524000000	iso4217:USD	-6
9	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:InternationalSegmentMember (label)	Depreciation	1278000000	iso4217:USD	-6
10	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	amzn:NorthAmericaSegmentMember (label)	Depreciation	3029000000	iso4217:USD	-6
11	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Depreciation	12100000000	iso4217:USD	-8
12	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	Segments [Domain]	Depreciation	12138000000	iso4217:USD	-6
13	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:AmazonWebServicesSegmentMember (label)	Depreciation	6095000000	iso4217:USD	-6
14	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:InternationalSegmentMember (label)	Depreciation	1628000000	iso4217:USD	-6
15	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	amzn:NorthAmericaSegmentMember (label)	Depreciation	4415000000	iso4217:USD	-6

Fact Table
Network	2412402 - Disclosure - Quarterly Results (Unaudited) (Details) (http://www.amazon.com/role/QuarterlyResultsUnauditedDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Earnings Per Share, Basic	5.01	iso4217:USD/xbrli:shares	2
2	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Earnings Per Share, Basic	1.52	iso4217:USD/xbrli:shares	2
3	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Earnings Per Share, Basic	0.41	iso4217:USD/xbrli:shares	2
4	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Earnings Per Share, Basic	0.53	iso4217:USD/xbrli:shares	2
5	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Earnings Per Share, Basic	3.85	iso4217:USD/xbrli:shares	2
6	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Earnings Per Share, Basic	6.32	iso4217:USD/xbrli:shares	2
7	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Earnings Per Share, Basic	3.36	iso4217:USD/xbrli:shares	2
8	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Earnings Per Share, Basic	5.21	iso4217:USD/xbrli:shares	2
9	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Earnings Per Share, Basic	5.91	iso4217:USD/xbrli:shares	2
10	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Earnings Per Share, Basic	6.18	iso4217:USD/xbrli:shares	2
11	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Earnings Per Share, Basic	20.68	iso4217:USD/xbrli:shares	2
12	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Earnings Per Share, Diluted	4.9	iso4217:USD/xbrli:shares	2
13	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Earnings Per Share, Diluted	1.48	iso4217:USD/xbrli:shares	2
14	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Earnings Per Share, Diluted	0.4	iso4217:USD/xbrli:shares	2
15	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Earnings Per Share, Diluted	0.52	iso4217:USD/xbrli:shares	2
16	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Earnings Per Share, Diluted	3.75	iso4217:USD/xbrli:shares	2
17	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Earnings Per Share, Diluted	6.15	iso4217:USD/xbrli:shares	2
18	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Earnings Per Share, Diluted	3.27	iso4217:USD/xbrli:shares	2
19	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Earnings Per Share, Diluted	5.07	iso4217:USD/xbrli:shares	2
20	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Earnings Per Share, Diluted	5.75	iso4217:USD/xbrli:shares	2
21	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Earnings Per Share, Diluted	6.04	iso4217:USD/xbrli:shares	2
22	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Earnings Per Share, Diluted	20.14	iso4217:USD/xbrli:shares	2
23	0001018724 (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	3892000000	iso4217:USD	-6
24	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	953000000	iso4217:USD	-6
25	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	666000000	iso4217:USD	-6
26	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	316000000	iso4217:USD	-6
27	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	1872000000	iso4217:USD	-6
28	0001018724 (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	3806000000	iso4217:USD	-6
29	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	1916000000	iso4217:USD	-6
30	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	2605000000	iso4217:USD	-6
31	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	3390000000	iso4217:USD	-6
32	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	3350000000	iso4217:USD	-6
33	0001018724 (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	11261000000	iso4217:USD	-6
34	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1400000000	iso4217:USD	-8
35	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Income Tax Expense (Benefit)	1425000000	iso4217:USD	-6
36	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Income Tax Expense (Benefit)	229000000	iso4217:USD	-6
37	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Income Tax Expense (Benefit)	467000000	iso4217:USD	-6
38	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Income Tax Expense (Benefit)	58000000	iso4217:USD	-6
39	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Income Tax Expense (Benefit)	16000000	iso4217:USD	-6
40	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Income Tax Expense (Benefit)	769000000	iso4217:USD	-6
41	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Income Tax Expense (Benefit)	287000000	iso4217:USD	-6
42	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Income Tax Expense (Benefit)	74000000	iso4217:USD	-6
43	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Income Tax Expense (Benefit)	508000000	iso4217:USD	-6
44	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Income Tax Expense (Benefit)	327000000	iso4217:USD	-6
45	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Income Tax Expense (Benefit)	1197000000	iso4217:USD	-6
46	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Net Income (Loss) Attributable to Parent	2371000000	iso4217:USD	-6
47	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Net Income (Loss) Attributable to Parent	724000000	iso4217:USD	-6
48	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Net Income (Loss) Attributable to Parent	197000000	iso4217:USD	-6
49	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Net Income (Loss) Attributable to Parent	256000000	iso4217:USD	-6
50	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	1856000000	iso4217:USD	-6
51	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Net Income (Loss) Attributable to Parent	3033000000	iso4217:USD	-6
52	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Net Income (Loss) Attributable to Parent	1629000000	iso4217:USD	-6
53	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Net Income (Loss) Attributable to Parent	2534000000	iso4217:USD	-6
54	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Net Income (Loss) Attributable to Parent	2883000000	iso4217:USD	-6
55	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	3027000000	iso4217:USD	-6
56	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Net Income (Loss) Attributable to Parent	10073000000	iso4217:USD	-6
57	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Operating Income (Loss)	4186000000	iso4217:USD	-6
58	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Operating Income (Loss)	1005000000	iso4217:USD	-6
59	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Operating Income (Loss)	628000000	iso4217:USD	-6
60	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Operating Income (Loss)	347000000	iso4217:USD	-6
61	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Operating Income (Loss)	2127000000	iso4217:USD	-6
62	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Operating Income (Loss)	4106000000	iso4217:USD	-6
63	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Operating Income (Loss)	1927000000	iso4217:USD	-6
64	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Operating Income (Loss)	2983000000	iso4217:USD	-6
65	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Operating Income (Loss)	3724000000	iso4217:USD	-6
66	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Operating Income (Loss)	3786000000	iso4217:USD	-6
67	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Operating Income (Loss)	12421000000	iso4217:USD	-6
68	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	135987000000	iso4217:USD	-6
69	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	35714000000	iso4217:USD	-6
70	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Revenue from Contract with Customer, Excluding Assessed Tax	37955000000	iso4217:USD	-6
71	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Revenue from Contract with Customer, Excluding Assessed Tax	43744000000	iso4217:USD	-6
72	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	60453000000	iso4217:USD	-6
73	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	177866000000	iso4217:USD	-6
74	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	51042000000	iso4217:USD	-6
75	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Revenue from Contract with Customer, Excluding Assessed Tax	52886000000	iso4217:USD	-6
76	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Revenue from Contract with Customer, Excluding Assessed Tax	56576000000	iso4217:USD	-6
77	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	72383000000	iso4217:USD	-6
78	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Revenue from Contract with Customer, Excluding Assessed Tax	232887000000	iso4217:USD	-6
79	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	484000000	xbrli:shares	-6
80	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Weighted Average Number of Shares Outstanding, Diluted	490000000	xbrli:shares	-6
81	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Weighted Average Number of Shares Outstanding, Diluted	492000000	xbrli:shares	-6
82	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Weighted Average Number of Shares Outstanding, Diluted	494000000	xbrli:shares	-6
83	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	496000000	xbrli:shares	-6
84	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	493000000	xbrli:shares	-6
85	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Weighted Average Number of Shares Outstanding, Diluted	498000000	xbrli:shares	-6
86	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Weighted Average Number of Shares Outstanding, Diluted	500000000	xbrli:shares	-6
87	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Weighted Average Number of Shares Outstanding, Diluted	501000000	xbrli:shares	-6
88	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	501000000	xbrli:shares	-6
89	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Diluted	500000000	xbrli:shares	-6
90	0001018724 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Weighted Average Number of Shares Outstanding, Basic	474000000	xbrli:shares	-6
91	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-03-31	null	Weighted Average Number of Shares Outstanding, Basic	477000000	xbrli:shares	-6
92	0001018724 (http://www.sec.gov/CIK)	2017-04-01 to 2017-06-30	null	Weighted Average Number of Shares Outstanding, Basic	479000000	xbrli:shares	-6
93	0001018724 (http://www.sec.gov/CIK)	2017-07-01 to 2017-09-30	null	Weighted Average Number of Shares Outstanding, Basic	481000000	xbrli:shares	-6
94	0001018724 (http://www.sec.gov/CIK)	2017-10-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Basic	483000000	xbrli:shares	-6
95	0001018724 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Weighted Average Number of Shares Outstanding, Basic	480000000	xbrli:shares	-6
96	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-03-31	null	Weighted Average Number of Shares Outstanding, Basic	484000000	xbrli:shares	-6
97	0001018724 (http://www.sec.gov/CIK)	2018-04-01 to 2018-06-30	null	Weighted Average Number of Shares Outstanding, Basic	486000000	xbrli:shares	-6
98	0001018724 (http://www.sec.gov/CIK)	2018-07-01 to 2018-09-30	null	Weighted Average Number of Shares Outstanding, Basic	488000000	xbrli:shares	-6
99	0001018724 (http://www.sec.gov/CIK)	2018-10-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Basic	490000000	xbrli:shares	-6
100	0001018724 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	Weighted Average Number of Shares Outstanding, Basic	487000000	xbrli:shares	-6

Rules

Type	Defined	Bound	OK	Fail
formula	0	0	0	0
existenceAssertion	0	0	0	0
valueAssertion	0	0	0	0
calculation	265	1031	946	85

Rule Details

Errors and Warnings

Other than rule related. The error Type is just a conjecture on the culprit, because some 'bad reports' may contain some XBRL feature we have not yet covered.

Type	Where	What
bad_report	loadContext/D2017Q2May12_us-gaap_BusinessAcquisitionAxis_amzn_SouqGroupLtdMember	failed((simpleDate(2017-05-12),simpleDate(2017-05-12),2017-05-12@>2017-05-12))
bad_report	loadContext/D2017Q3WFM_us-gaap_BusinessAcquisitionAxis_amzn_WholeFoodsMarketInc.Member	failed((simpleDate(2017-08-28),simpleDate(2017-08-28),2017-08-28@>2017-08-28))
bad_report	loadContext/D2017Q4_us-gaap_IncomeTaxAuthorityAxis_us-gaap_ForeignCountryMember_us-gaap_IncomeTaxAuthorityNameAxis_amzn_LuxembourgTaxAdministrationMember	failed((simpleDate(2017-10-04),simpleDate(2017-10-04),2017-10-04@>2017-10-04))
bad_report	loadContext/D2018Q1Ring_us-gaap_BusinessAcquisitionAxis_amzn_RingIncMember	failed((simpleDate(2018-04-12),simpleDate(2018-04-12),2018-04-12@>2018-04-12))
bad_report	loadContext/D2018Q2Goodwill	failed((simpleDate(2018-04-01),simpleDate(2018-04-01),2018-04-01@>2018-04-01))
bad_report	loadContext/D2018Q3PillPackInc_us-gaap_BusinessAcquisitionAxis_amzn_PillPackInc.Member	failed((simpleDate(2018-09-11),simpleDate(2018-09-11),2018-09-11@>2018-09-11))

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

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Table of Contents

Terms

Model Structures

Fact Tables

Rules

Rule Details

Errors and Warnings