| Component: (Network and Table) | |
|---|---|
| Network | 100000 - Document - Document and Entity Information (http://www.xbrlsite.com/msft/role/DocumentDocumentAndEntityInformation) |
| Table | Statement [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Document Type | 10-K | |||
| 2 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Amendment Flag | false | |||
| 3 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Document Period End Date | 2017-06-30 | |||
| 4 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Document Fiscal Year Focus | 2017 | |||
| 5 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Document Fiscal Period Focus | FY | |||
| 6 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Trading Symbol | MSFT | |||
| 7 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Entity Registrant Name | MICROSOFT CORPORATION | |||
| 8 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Entity Central Index Key | 0000789019 | |||
| 9 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Current Fiscal Year End Date | --06-30 | |||
| 10 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Entity Well Known Seasoned Issuer | Yes | |||
| 11 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Entity Current Reporting Status | Yes | |||
| 12 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Entity Voluntary Filers | No | |||
| 13 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Entity Filer Category | Large Accelerated Filer | |||
| 14 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Entity Listing Par Value Per Share | 0.00000625 | USD / Shares | INF | |
| 15 | http://www.sec.gov/CIK (0000789019) | 2017-07-31 | Entity [Domain] | Entity Common Stock Shares Outstanding | 7702243979 | Shares | INF | |
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| 17 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Entity Tax Identification Number | 911144442 |
| Component: (Network and Table) | |
|---|---|
| Network | 100010 - Statement - INCOME STATEMENTS (http://www.xbrlsite.com/msft/role/StatementINCOMESTATEMENTS) |
| Table | Statement [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
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| 2 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Sales Revenue Goods Net | 61502000000 | USD | -6 | |
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| 5 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Sales Revenue Services And Other Net | 23818000000 | USD | -6 | |
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| 8 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Sales Revenue Net | 85320000000 | USD | -6 | |
| 9 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Sales Revenue Net | 93580000000 | USD | -6 | |
| 10 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Cost Of Goods Sold | 21410000000 | USD | -6 | |
| 11 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Cost Of Goods Sold | 15175000000 | USD | -6 | |
| 12 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Cost Of Goods Sold | 17880000000 | USD | -6 | |
| 13 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Cost Of Services And Other | 14900000000 | USD | -6 | |
| 14 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Cost Of Services And Other | 11628000000 | USD | -6 | |
| 15 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Cost Of Services And Other | 19086000000 | USD | -6 | |
| 16 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Cost Of Revenue | 33038000000 | USD | -6 | |
| 17 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Cost Of Revenue | 34261000000 | USD | -6 | |
| 18 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Cost Of Revenue | 32780000000 | USD | -6 | |
| 19 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Gross Profit | 60542000000 | USD | -6 | |
| 20 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Gross Profit | 55689000000 | USD | -6 | |
| 21 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Gross Profit | 52540000000 | USD | -6 | |
| 22 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Research And Development Expense | 12046000000 | USD | -6 | |
| 23 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Research And Development Expense | 13037000000 | USD | -6 | |
| 24 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Research And Development Expense | 11988000000 | USD | -6 | |
| 25 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Selling And Marketing Expense | 14697000000 | USD | -6 | |
| 26 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Selling And Marketing Expense | 15713000000 | USD | -6 | |
| 27 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Selling And Marketing Expense | 15539000000 | USD | -6 | |
| 28 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | General And Administrative Expense | 4563000000 | USD | -6 | |
| 29 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | General And Administrative Expense | 4481000000 | USD | -6 | |
| 30 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | General And Administrative Expense | 4611000000 | USD | -6 | |
| 31 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Impairment Integration And Restructuring Expenses | 306000000 | USD | -6 | |
| 32 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Impairment Integration And Restructuring Expenses | 10011000000 | USD | -6 | |
| 33 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Impairment Integration And Restructuring Expenses | 1110000000 | USD | -6 | |
| 34 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Operating Income Loss | 18161000000 | USD | -6 | |
| 35 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Operating Income Loss | 22326000000 | USD | -6 | |
| 36 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Operating Income Loss | 20182000000 | USD | -6 | |
| 37 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Nonoperating Income Expense | 346000000 | USD | -6 | |
| 38 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Nonoperating Income Expense | -431000000 | USD | -6 | |
| 39 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Nonoperating Income Expense | 823000000 | USD | -6 | |
| 40 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments | 19751000000 | USD | -6 | |
| 41 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments | 23149000000 | USD | -6 | |
| 42 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments | 18507000000 | USD | -6 | |
| 43 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Income Tax Expense Benefit | 2953000000 | USD | -6 | |
| 44 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Income Tax Expense Benefit | 1945000000 | USD | -6 | |
| 45 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Income Tax Expense Benefit | 6314000000 | USD | -6 | |
| 46 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Net Income Loss | 21204000000 | USD | -6 | |
| 47 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Net Income Loss | 12193000000 | USD | -6 | |
| 48 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Net Income Loss | 16798000000 | USD | -6 | |
| 49 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Basic | 2.12 | USD / Shares | 2 | |
| 50 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Basic | 2.74 | USD / Shares | 2 | |
| 51 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Earnings Per Share Basic | 1.49 | USD / Shares | 2 | |
| 52 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Earnings Per Share Diluted | 1.48 | USD / Shares | 2 | |
| 53 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Diluted | 2.71 | USD / Shares | 2 | |
| 54 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Diluted | 2.10 | USD / Shares | 2 | |
| 55 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Weighted Average Number Of Shares Outstanding Basic | 7746000000 | Shares | -6 | |
| 56 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Weighted Average Number Of Shares Outstanding Basic | 7925000000 | Shares | -6 | |
| 57 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Weighted Average Number Of Shares Outstanding Basic | 8177000000 | Shares | -6 | |
| 58 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Weighted Average Number Of Diluted Shares Outstanding | 8254000000 | Shares | -6 | |
| 59 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Weighted Average Number Of Diluted Shares Outstanding | 8013000000 | Shares | -6 | |
| 60 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Weighted Average Number Of Diluted Shares Outstanding | 7832000000 | Shares | -6 | |
| 61 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Common Stock Dividends Per Share Declared | 1.24 | USD / Shares | INF | |
| 62 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Common Stock Dividends Per Share Declared | 1.56 | USD / Shares | INF | |
| 63 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Common Stock Dividends Per Share Declared | 1.44 | USD / Shares | INF |
| Component: (Network and Table) | |
|---|---|
| Network | 100020 - Statement - COMPREHENSIVE INCOME STATEMENTS (http://www.xbrlsite.com/msft/role/StatementCOMPREHENSIVEINCOMESTATEMENTS) |
| Table | Statement [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100030 - Statement - COMPREHENSIVE INCOME STATEMENTS (Parenthetical) (http://www.xbrlsite.com/msft/role/StatementCOMPREHENSIVEINCOMESTATEMENTSParenthetical) |
| Table | Statement [Table] |
| Component: (Network and Table) | |
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| Network | 100040 - Statement - BALANCE SHEETS (http://www.xbrlsite.com/msft/role/StatementBALANCESHEETS) |
| Table | Statement [Table] |
| Component: (Network and Table) | |
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| Network | 100050 - Statement - BALANCE SHEETS (Parenthetical) (http://www.xbrlsite.com/msft/role/StatementBALANCESHEETSParenthetical) |
| Table | Statement [Table] |
| Component: (Network and Table) | |
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| Network | 100060 - Statement - CASH FLOWS STATEMENTS (http://www.xbrlsite.com/msft/role/StatementCASHFLOWSSTATEMENTS) |
| Table | Statement [Table] |
| Component: (Network and Table) | |
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| Network | 100070 - Statement - STOCKHOLDERS' EQUITY STATEMENTS (http://www.xbrlsite.com/msft/role/StatementSTOCKHOLDERSEQUITYSTATEMENTS) |
| Table | Statement [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100080 - Disclosure - ACCOUNTING POLICIES (http://www.xbrlsite.com/msft/role/DisclosureACCOUNTINGPOLICIES) |
| Table | Statement [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Significant Accounting Policies [Text Block] | <div> <p style="text-align:center;margin-bottom:0pt;margin-top:9pt;text-indent:0%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:nor |
| Component: (Network and Table) | |
|---|---|
| Network | 100090 - Disclosure - EARNINGS PER SHARE (http://www.xbrlsite.com/msft/role/DisclosureEARNINGSPERSHARE) |
| Table | Statement [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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| Network | 100100 - Disclosure - OTHER INCOME (EXPENSE), NET (http://www.xbrlsite.com/msft/role/DisclosureOTHERINCOMEEXPENSENET) |
| Table | Statement [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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| Table | Statement [Table] |
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|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Investments In Debt And Equity Instruments Cash And Cash Equivalents Unrealized And Realized Gains Losses [Text Block] | <div> <p style="text-align:center;margin-bottom:0pt;margin-top:4pt;text-indent:0%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:nor |
| Component: (Network and Table) | |
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|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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| Network | 100130 - Disclosure - FAIR VALUE MEASUREMENTS (http://www.xbrlsite.com/msft/role/DisclosureFAIRVALUEMEASUREMENTS) |
| Table | Statement [Table] |
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|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
|---|---|
| Network | 100140 - Disclosure - INVENTORIES (http://www.xbrlsite.com/msft/role/DisclosureINVENTORIES) |
| Table | Statement [Table] |
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|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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| Network | 100150 - Disclosure - PROPERTY AND EQUIPMENT (http://www.xbrlsite.com/msft/role/DisclosurePROPERTYANDEQUIPMENT) |
| Table | Statement [Table] |
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| Component: (Network and Table) | |
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| Network | 100160 - Disclosure - BUSINESS COMBINATIONS (http://www.xbrlsite.com/msft/role/DisclosureBUSINESSCOMBINATIONS) |
| Table | Statement [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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| Network | 100170 - Disclosure - GOODWILL (http://www.xbrlsite.com/msft/role/DisclosureGOODWILL) |
| Table | Statement [Table] |
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|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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| Network | 100180 - Disclosure - INTANGIBLE ASSETS (http://www.xbrlsite.com/msft/role/DisclosureINTANGIBLEASSETS) |
| Table | Statement [Table] |
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|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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| Network | 100190 - Disclosure - DEBT (http://www.xbrlsite.com/msft/role/DisclosureDEBT) |
| Table | Statement [Table] |
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|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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| Network | 100200 - Disclosure - INCOME TAXES (http://www.xbrlsite.com/msft/role/DisclosureINCOMETAXES) |
| Table | Statement [Table] |
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|---|---|---|---|---|---|---|---|---|
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| Table | Statement [Table] |
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| Network | 100250 - Disclosure - STOCKHOLDERS' EQUITY (http://www.xbrlsite.com/msft/role/DisclosureSTOCKHOLDERSEQUITY) |
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| Network | 100260 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (http://www.xbrlsite.com/msft/role/DisclosureACCUMULATEDOTHERCOMPREHENSIVEINCOME) |
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| Component: (Network and Table) | |
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| Network | 100350 - Disclosure - DERIVATIVES (Tables) (http://www.xbrlsite.com/msft/role/DisclosureDERIVATIVESTables) |
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| Component: (Network and Table) | |
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|---|---|---|---|---|---|---|---|---|
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|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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|---|---|---|---|---|---|---|---|---|
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|---|---|---|---|---|---|---|---|---|
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| Component: (Network and Table) | |
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|---|---|---|---|---|---|---|---|---|
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|---|---|---|---|---|---|---|---|---|
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|---|---|---|---|---|---|---|---|---|
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|---|---|---|---|---|---|---|---|---|
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|---|---|---|---|---|---|---|---|---|
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| Table | Statement [Table] |
| Component: (Network and Table) | |
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| Component: (Network and Table) | |
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|---|---|---|---|---|---|---|---|---|
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| 6 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Net Income Loss | 16798000000 | USD | -6 | |
| 7 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2015-09-30 | Entity [Domain] | Net Income Loss | 4902000000 | USD | -6 | |
| 8 | http://www.sec.gov/CIK (0000789019) | 2017-04-01 - 2017-06-30 | Entity [Domain] | Net Income Loss | 6513000000 | USD | -6 | |
| 9 | http://www.sec.gov/CIK (0000789019) | 2017-01-01 - 2017-03-31 | Entity [Domain] | Net Income Loss | 4801000000 | USD | -6 | |
| 10 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2016-09-30 | Entity [Domain] | Net Income Loss | 4690000000 | USD | -6 | |
| 11 | http://www.sec.gov/CIK (0000789019) | 2016-04-01 - 2016-06-30 | Entity [Domain] | Net Income Loss | 3122000000 | USD | -6 | |
| 12 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Weighted Average Number Of Shares Outstanding Basic | 7746000000 | Shares | -6 | |
| 13 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Weighted Average Number Of Shares Outstanding Basic | 7925000000 | Shares | -6 | |
| 14 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Weighted Average Number Of Shares Outstanding Basic | 8177000000 | Shares | -6 | |
| 15 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Incremental Common Shares Attributable To Share Based Payment Arrangements | 77000000 | Shares | -6 | |
| 16 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Incremental Common Shares Attributable To Share Based Payment Arrangements | 88000000 | Shares | -6 | |
| 17 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Incremental Common Shares Attributable To Share Based Payment Arrangements | 86000000 | Shares | -6 | |
| 18 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Weighted Average Number Of Diluted Shares Outstanding | 8254000000 | Shares | -6 | |
| 19 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Weighted Average Number Of Diluted Shares Outstanding | 8013000000 | Shares | -6 | |
| 20 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Weighted Average Number Of Diluted Shares Outstanding | 7832000000 | Shares | -6 | |
| 21 | http://www.sec.gov/CIK (0000789019) | 2015-10-01 - 2015-12-31 | Entity [Domain] | Earnings Per Share Basic | 0.63 | USD / Shares | 2 | |
| 22 | http://www.sec.gov/CIK (0000789019) | 2016-01-01 - 2016-03-31 | Entity [Domain] | Earnings Per Share Basic | 0.48 | USD / Shares | 2 | |
| 23 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Basic | 2.12 | USD / Shares | 2 | |
| 24 | http://www.sec.gov/CIK (0000789019) | 2017-01-01 - 2017-03-31 | Entity [Domain] | Earnings Per Share Basic | 0.62 | USD / Shares | 2 | |
| 25 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2016-09-30 | Entity [Domain] | Earnings Per Share Basic | 0.60 | USD / Shares | 2 | |
| 26 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2015-09-30 | Entity [Domain] | Earnings Per Share Basic | 0.61 | USD / Shares | 2 | |
| 27 | http://www.sec.gov/CIK (0000789019) | 2017-04-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Basic | 0.84 | USD / Shares | 2 | |
| 28 | http://www.sec.gov/CIK (0000789019) | 2016-10-01 - 2016-12-31 | Entity [Domain] | Earnings Per Share Basic | 0.67 | USD / Shares | 2 | |
| 29 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Basic | 2.74 | USD / Shares | 2 | |
| 30 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Earnings Per Share Basic | 1.49 | USD / Shares | 2 | |
| 31 | http://www.sec.gov/CIK (0000789019) | 2016-04-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Basic | 0.40 | USD / Shares | 2 | |
| 32 | http://www.sec.gov/CIK (0000789019) | 2016-10-01 - 2016-12-31 | Entity [Domain] | Earnings Per Share Diluted | 0.66 | USD / Shares | 2 | |
| 33 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2015-09-30 | Entity [Domain] | Earnings Per Share Diluted | 0.61 | USD / Shares | 2 | |
| 34 | http://www.sec.gov/CIK (0000789019) | 2015-10-01 - 2015-12-31 | Entity [Domain] | Earnings Per Share Diluted | 0.62 | USD / Shares | 2 | |
| 35 | http://www.sec.gov/CIK (0000789019) | 2017-04-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Diluted | 0.83 | USD / Shares | 2 | |
| 36 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Earnings Per Share Diluted | 1.48 | USD / Shares | 2 | |
| 37 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Diluted | 2.71 | USD / Shares | 2 | |
| 38 | http://www.sec.gov/CIK (0000789019) | 2017-01-01 - 2017-03-31 | Entity [Domain] | Earnings Per Share Diluted | 0.61 | USD / Shares | 2 | |
| 39 | http://www.sec.gov/CIK (0000789019) | 2016-01-01 - 2016-03-31 | Entity [Domain] | Earnings Per Share Diluted | 0.47 | USD / Shares | 2 | |
| 40 | http://www.sec.gov/CIK (0000789019) | 2016-04-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Diluted | 0.39 | USD / Shares | 2 | |
| 41 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2016-09-30 | Entity [Domain] | Earnings Per Share Diluted | 0.60 | USD / Shares | 2 | |
| 42 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Diluted | 2.10 | USD / Shares | 2 |
| Component: (Network and Table) | |
|---|---|
| Network | 100560 - Disclosure - Components of Other Income (Expense), Net (Detail) (http://www.xbrlsite.com/msft/role/DisclosureComponentsOfOtherIncomeExpenseNetDetail) |
| Table | Other Income Expense [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Investment Income Net | 1387000000 | USD | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Investment Income Net | 903000000 | USD | -6 | |
| 3 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Investment Income Net | 766000000 | USD | -6 | |
| 4 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Interest Expense | 2222000000 | USD | -6 | |
| 5 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Interest Expense | 1243000000 | USD | -6 | |
| 6 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Interest Expense | 781000000 | USD | -6 | |
| 7 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Gain Loss On Investments | 668000000 | USD | -6 | |
| 8 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Gain Loss On Investments | 2583000000 | USD | -6 | |
| 9 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Gain Loss On Investments | 716000000 | USD | -6 | |
| 10 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Gain Loss On Derivative Instruments Net Pretax | -443000000 | USD | -6 | |
| 11 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Gain Loss On Derivative Instruments Net Pretax | -510000000 | USD | -6 | |
| 12 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Gain Loss On Derivative Instruments Net Pretax | -423000000 | USD | -6 | |
| 13 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Foreign Currency Transaction Gain Loss Before Tax | -121000000 | USD | -6 | |
| 14 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Foreign Currency Transaction Gain Loss Before Tax | -164000000 | USD | -6 | |
| 15 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Foreign Currency Transaction Gain Loss Before Tax | 335000000 | USD | -6 | |
| 16 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Other Nonoperating Income Expense | -195000000 | USD | -6 | |
| 17 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Other Nonoperating Income Expense | -267000000 | USD | -6 | |
| 18 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Other Nonoperating Income Expense | -251000000 | USD | -6 | |
| 19 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Nonoperating Income Expense | 346000000 | USD | -6 | |
| 20 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Nonoperating Income Expense | -431000000 | USD | -6 | |
| 21 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Nonoperating Income Expense | 823000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100570 - Disclosure - Net Recognized Gains (Losses) on Investments (Detail) (http://www.xbrlsite.com/msft/role/DisclosureNetRecognizedGainsLossesOnInvestmentsDetail) |
| Table | Schedule of Gain (Loss) on Investments [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100580 - Disclosure - Investment Components, Including Associated Derivatives (Detail) (http://www.xbrlsite.com/msft/role/DisclosureInvestmentComponentsIncludingAssociatedDerivativesDetail) |
| Table | Cash, Cash Equivalents and Investments [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100590 - Disclosure - Investments - Cost Method - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureInvestmentsCostMethodAdditionalInformationDetail) |
| Table | Schedule of Cost method Investments [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Fair Value By Measurement Frequency [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Fair Value Measurements Nonrecurring [Member] | Cost Method Investments | 767000000 | USD | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Fair Value Measurements Nonrecurring [Member] | Cost Method Investments | 1073000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100600 - Disclosure - Investments - Secured Borrowings and Loaned Securities - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureInvestmentsSecuredBorrowingsAndLoanedSecuritiesAdditionalInformationDetail) |
| Table | Investment [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Investment Type [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | U S Government Agencies Debt Securities [Member] | Securities Received As Collateral | 3700000000 | USD | -8 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Cash [Member] | Securities Received As Collateral | 294000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100610 - Disclosure - Unrealized Losses on Investments (Detail) (http://www.xbrlsite.com/msft/role/DisclosureUnrealizedLossesOnInvestmentsDetail) |
| Table | Investments, Unrealized Loss Position [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100620 - Disclosure - Debt Investment Maturities (Detail) (http://www.xbrlsite.com/msft/role/DisclosureDebtInvestmentMaturitiesDetail) |
| Table | Investments Classified by Contractual Maturity Date [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100630 - Disclosure - Derivatives - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureDerivativesAdditionalInformationDetail) |
| Table | Derivative [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100640 - Disclosure - Fair Values of Derivative Instruments (Detail) (http://www.xbrlsite.com/msft/role/DisclosureFairValuesOfDerivativeInstrumentsDetail) |
| Table | Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100650 - Disclosure - Gains (Losses) on Fair Value Hedges and Related Hedged Items (Detail) (http://www.xbrlsite.com/msft/role/DisclosureGainsLossesOnFairValueHedgesAndRelatedHedgedItemsDetail) |
| Table | Derivative Instruments, Gain (Loss) [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100660 - Disclosure - Gains (Losses) Related to Cash Flow Hedges (Detail) (http://www.xbrlsite.com/msft/role/DisclosureGainsLossesRelatedToCashFlowHedgesDetail) |
| Table | Derivative Instruments, Gain (Loss) [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100670 - Disclosure - Gains (Losses) Related to Cash Flow Hedges (Parenthetical) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureGainsLossesRelatedToCashFlowHedgesParentheticalDetail) |
| Table | Derivative Instruments, Gain (Loss) [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Hedging Designation [Axis] | Derivative Instrument Risk [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Designated As Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax | 4000000 | USD | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Designated As Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax | 24000000 | USD | -6 | |
| 3 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Designated As Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax | 35000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100680 - Disclosure - Non-Designated Derivative Gains (Losses) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureNonDesignatedDerivativeGainsLossesDetail) |
| Table | Derivative Instruments, Gain (Loss) [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100690 - Disclosure - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (http://www.xbrlsite.com/msft/role/DisclosureFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail) |
| Table | Fair Value Measurements, Recurring and Nonrecurring [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100700 - Disclosure - Reconciliation of Total Assets Measured at Fair Value on Recurring Basis to Balance Sheet Presentation (Detail) (http://www.xbrlsite.com/msft/role/DisclosureReconciliationOfTotalAssetsMeasuredAtFairValueOnRecurringBasisToBalanceSheetPresentationDetail) |
| Table | Fair Value Measurements, Recurring and Nonrecurring [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100710 - Disclosure - Components of Inventories (Detail) (http://www.xbrlsite.com/msft/role/DisclosureComponentsOfInventoriesDetail) |
| Table | Inventory, Current [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Inventory Raw Materials Net Of Reserves | 612000000 | USD | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Inventory Raw Materials Net Of Reserves | 797000000 | USD | -6 | |
| 3 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Inventory Work In Process Net Of Reserves | 158000000 | USD | -6 | |
| 4 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Inventory Work In Process Net Of Reserves | 145000000 | USD | -6 | |
| 5 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Inventory Finished Goods Net Of Reserves | 1239000000 | USD | -6 | |
| 6 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Inventory Finished Goods Net Of Reserves | 1481000000 | USD | -6 | |
| 7 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Inventory Net | 2181000000 | USD | -6 | |
| 8 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Inventory Net | 2251000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100720 - Disclosure - Components of Property and Equipment (Detail) (http://www.xbrlsite.com/msft/role/DisclosureComponentsOfPropertyAndEquipmentDetail) |
| Table | Property, Plant and Equipment [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100730 - Disclosure - Property and Equipment - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosurePropertyAndEquipmentAdditionalInformationDetail) |
| Table | Property, Plant and Equipment [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100740 - Disclosure - Business Combinations - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureBusinessCombinationsAdditionalInformationDetail) |
| Table | Schedule of Business Acquisitions, by Acquisition [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Business Acquisition [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-12-07 - 2016-12-08 | Entity [Domain] | Linked In Corporation [Member] | Business Acquisition Effective Date Of Acquisition1 | 2016-12-08 | |||
| 2 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Linked In Corporation [Member] | Business Acquisition Name Of Acquired Entity | ||||
| 3 | http://www.sec.gov/CIK (0000789019) | 2016-12-07 - 2016-12-08 | Entity [Domain] | Linked In Corporation [Member] | Business Combination Consideration Transferred1 | 27000000000 | USD | -8 | |
| 4 | http://www.sec.gov/CIK (0000789019) | 2016-12-07 - 2016-12-08 | Entity [Domain] | Linked In Corporation [Member] | Payments To Acquire Businesses Gross | 26900000000 | USD | -8 |
| Component: (Network and Table) | |
|---|---|
| Network | 100750 - Disclosure - Major Classes of Assets and Liabilities to Which We Allocated the Purchase Price (Detail) (http://www.xbrlsite.com/msft/role/DisclosureMajorClassesOfAssetsAndLiabilitiesToWhichWeAllocatedPurchasePriceDetail) |
| Table | Schedule of Business Acquisitions, by Acquisition [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100760 - Disclosure - Major Classes of Assets and Liabilities to Which We Allocated the Purchase Price (Parenthetical) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureMajorClassesOfAssetsAndLiabilitiesToWhichWeAllocatedPurchasePriceParentheticalDetail) |
| Table | Schedule of Business Acquisitions, by Acquisition [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Business Acquisition [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-12-08 | Entity [Domain] | Linked In Corporation [Member] | Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount | 0 | USD | INF | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Linked In Corporation [Member] | Debt Instrument Face Amount | 18000000 | USD | -6 | |
| 3 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Business Acquisition Acquiree [Domain] | Debt Instrument Face Amount | 77837000000 | USD | -6 | |
| 4 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Business Acquisition Acquiree [Domain] | Debt Instrument Face Amount | 40949000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100770 - Disclosure - Acquired Intangible Assets (Detail) (http://www.xbrlsite.com/msft/role/DisclosureAcquiredIntangibleAssetsDetail) |
| Table | Finite Lived Intangible Assets Acquired as Part of Business Combination [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100780 - Disclosure - Revenue and Operating Loss Attributable to Acquiree, Since the Date of Acquisition (Detail) (http://www.xbrlsite.com/msft/role/DisclosureRevenueAndOperatingLossAttributableToAcquireeSinceDateOfAcquisitionDetail) |
| Table | Schedule of Business Acquisitions, by Acquisition [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Business Acquisition [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Linked In Corporation [Member] | Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual | 2268000000 | USD | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Linked In Corporation [Member] | Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual | -948000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100790 - Disclosure - Supplemental Consolidated Financial Results on Unaudited Pro Forma Basis, as If the Acquisition Had Been Consummated on Beginning of Period (Detail) (http://www.xbrlsite.com/msft/role/DisclosureSupplementalConsolidatedFinancialResultsOnUnauditedProFormaBasisAsIfAcquisitionHadBeenConsummatedOnBeginningOfPeriodDetail) |
| Table | Schedule of Business Acquisitions, by Acquisition [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100800 - Disclosure - Carrying Amount of Goodwill (Detail) (http://www.xbrlsite.com/msft/role/DisclosureCarryingAmountOfGoodwillDetail) |
| Table | Schedule of Goodwill [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100810 - Disclosure - Goodwill - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureGoodwillAdditionalInformationDetail) |
| Table | Schedule of Goodwill [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Statement Business Segments [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Segment [Domain] | Goodwill Impaired Accumulated Impairment Loss | 11300000000 | USD | -8 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Segment [Domain] | Goodwill Impaired Accumulated Impairment Loss | 11300000000 | USD | -8 | |
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| 4 | http://www.sec.gov/CIK (0000789019) | 2016-05-01 - 2016-05-01 | Entity [Domain] | Segment [Domain] | Goodwill Impairment Loss | 0 | USD | INF | |
| 5 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Phone Hardware [Member] | Goodwill Impairment Loss | 5100000000 | USD | -8 |
| Component: (Network and Table) | |
|---|---|
| Network | 100820 - Disclosure - Finite-Lived Intangible Assets (Detail) (http://www.xbrlsite.com/msft/role/DisclosureFiniteLivedIntangibleAssetsDetail) |
| Table | Schedule of Finite Lived Intangible Assets [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100830 - Disclosure - Finite-Lived Intangible Assets (Parenthetical) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureFiniteLivedIntangibleAssetsParentheticalDetail) |
| Table | Schedule of Finite Lived Intangible Assets [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Finite Lived Intangible Assets By Major Class [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Technology Based Intangible Assets [Member] | Capitalized Software Development Costs For Software Sold To Customers | 115000000 | USD | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Technology Based Intangible Assets [Member] | Capitalized Software Development Costs For Software Sold To Customers | 59000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100840 - Disclosure - Intangible Assets - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureIntangibleAssetsAdditionalInformationDetail) |
| Table | Schedule of Finite Lived Intangible Assets [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100850 - Disclosure - Intangible Assets Acquired (Detail) (http://www.xbrlsite.com/msft/role/DisclosureIntangibleAssetsAcquiredDetail) |
| Table | Schedule of Acquired Finite Lived Intangible Asset by Major Class [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100860 - Disclosure - Estimated Future Amortization Expense Related to Intangible Assets (Detail) (http://www.xbrlsite.com/msft/role/DisclosureEstimatedFutureAmortizationExpenseRelatedToIntangibleAssetsDetail) |
| Table | Schedule of Finite Lived Intangible Assets [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100870 - Disclosure - Debt - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureDebtAdditionalInformationDetail) |
| Table | Schedule of Long term Debt Instruments [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100880 - Disclosure - Long-term Debt (Detail) (http://www.xbrlsite.com/msft/role/DisclosureLongTermDebtDetail) |
| Table | Schedule of Long term Debt Instruments [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100890 - Disclosure - Long-term Debt (Parenthetical) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureLongTermDebtParentheticalDetail) |
| Table | Schedule of Long term Debt Instruments [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Debt Instrument [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2017-02-28 | Entity [Domain] | U S D Debt Issued In Period [Member] | Debt Instrument Face Amount | 17000000000 | USD | -8 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Debt Instrument Name [Domain] | Debt Instrument Face Amount | 77837000000 | USD | -6 | |
| 3 | http://www.sec.gov/CIK (0000789019) | 2016-08-31 | Entity [Domain] | U S D Debt Issued In Period [Member] | Debt Instrument Face Amount | 19800000000 | USD | -8 | |
| 4 | http://www.sec.gov/CIK (0000789019) | 2016-06-30 | Entity [Domain] | Debt Instrument Name [Domain] | Debt Instrument Face Amount | 40949000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100900 - Disclosure - Maturities of Long-term Debt (Detail) (http://www.xbrlsite.com/msft/role/DisclosureMaturitiesOfLongTermDebtDetail) |
| Table | Schedule of Long term Debt Instruments [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100910 - Disclosure - Provision for Income Taxes (Detail) (http://www.xbrlsite.com/msft/role/DisclosureProvisionForIncomeTaxesDetail) |
| Table | Reconciliation of Provision of Income Taxes [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Current Federal Tax Expense Benefit | 3661000000 | USD | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Current Federal Tax Expense Benefit | 545000000 | USD | -6 | |
| 3 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Current Federal Tax Expense Benefit | 2739000000 | USD | -6 | |
| 4 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Current State And Local Tax Expense Benefit | 136000000 | USD | -6 | |
| 5 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Current State And Local Tax Expense Benefit | 30000000 | USD | -6 | |
| 6 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Current State And Local Tax Expense Benefit | 364000000 | USD | -6 | |
| 7 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Current Foreign Tax Expense Benefit | 1940000000 | USD | -6 | |
| 8 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Current Foreign Tax Expense Benefit | 2472000000 | USD | -6 | |
| 9 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Current Foreign Tax Expense Benefit | 2065000000 | USD | -6 | |
| 10 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Current Income Tax Expense Benefit | 2621000000 | USD | -6 | |
| 11 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Current Income Tax Expense Benefit | 5241000000 | USD | -6 | |
| 12 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Current Income Tax Expense Benefit | 6090000000 | USD | -6 | |
| 13 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Deferred Income Tax Expense Benefit | 224000000 | USD | -6 | |
| 14 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Deferred Income Tax Expense Benefit | 332000000 | USD | -6 | |
| 15 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Deferred Income Tax Expense Benefit | -3296000000 | USD | -6 | |
| 16 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Income Tax Expense Benefit | 2953000000 | USD | -6 | |
| 17 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Income Tax Expense Benefit | 1945000000 | USD | -6 | |
| 18 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Income Tax Expense Benefit | 6314000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 100920 - Disclosure - Income Taxes - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureIncomeTaxesAdditionalInformationDetail) |
| Table | Income Taxes [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100930 - Disclosure - Income (Loss) Before Income Taxes (Detail) (http://www.xbrlsite.com/msft/role/DisclosureIncomeLossBeforeIncomeTaxesDetail) |
| Table | Schedule of Components of Income Before Income Tax Expense (Benefit) [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100940 - Disclosure - Difference Between Income Taxes Computed at Federal Statutory Rate and Provision for Income Taxes (Detail) (http://www.xbrlsite.com/msft/role/DisclosureDifferenceBetweenIncomeTaxesComputedAtFederalStatutoryRateAndProvisionForIncomeTaxesDetail) |
| Table | Reconciliation of Statutory Federal Tax Rate [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100950 - Disclosure - Deferred Income Tax Assets and Liabilities (Detail) (http://www.xbrlsite.com/msft/role/DisclosureDeferredIncomeTaxAssetsAndLiabilitiesDetail) |
| Table | Schedule of Deferred Income Tax Assets and Liabilities [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100960 - Disclosure - Changes in Unrecognized Tax Benefits (Detail) (http://www.xbrlsite.com/msft/role/DisclosureChangesInUnrecognizedTaxBenefitsDetail) |
| Table | Income Tax Contingency [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100970 - Disclosure - Income Taxes - Additional Information Regarding Examinations (Detail) (http://www.xbrlsite.com/msft/role/DisclosureIncomeTaxesAdditionalInformationRegardingExaminationsDetail) |
| Table | Income Tax Examination [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100980 - Disclosure - Restructuring Charges - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureRestructuringChargesAdditionalInformationDetail) |
| Table | Schedule of Restructuring and Related Costs [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 100990 - Disclosure - Changes in Restructuring Liability (Detail) (http://www.xbrlsite.com/msft/role/DisclosureChangesInRestructuringLiabilityDetail) |
| Table | Schedule of Restructuring and Related Costs [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101000 - Disclosure - Unearned Revenue by Segment (Detail) (http://www.xbrlsite.com/msft/role/DisclosureUnearnedRevenueBySegmentDetail) |
| Table | Deferred Revenue Arrangement, by Type [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101010 - Disclosure - Commitments - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureCommitmentsAdditionalInformationDetail) |
| Table | Commitments [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101020 - Disclosure - Future Minimum Rental Commitments Under Non-cancellable Operating Leases (Detail) (http://www.xbrlsite.com/msft/role/DisclosureFutureMinimumRentalCommitmentsUnderNonCancellableOperatingLeasesDetail) |
| Table | Schedule of Operating Leased Assets [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101030 - Disclosure - Future Minimum Lease Payments under Non-cancellable Capital Leases (Detail) (http://www.xbrlsite.com/msft/role/DisclosureFutureMinimumLeasePaymentsUnderNonCancellableCapitalLeasesDetail) |
| Table | Future Minimum Lease Payments Under Non Cancellable Capital Leases [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101040 - Disclosure - Future Minimum Lease Payments under Non-cancellable Capital Leases (Parenthetical) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureFutureMinimumLeasePaymentsUnderNonCancellableCapitalLeasesParentheticalDetail) |
| Table | Future Minimum Lease Payments Under Non Cancellable Capital Leases [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Capital Leases Future Minimum Payments Interest Included In Payments | 922000000 | USD | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 101050 - Disclosure - Contingencies - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureContingenciesAdditionalInformationDetail) |
| Table | Loss Contingencies [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Loss Contingency Accrual Carrying Value Current | 352000000 | USD | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Loss Contingency Range Of Possible Loss Portion Not Accrued | 1000000000 | USD | -8 |
| Component: (Network and Table) | |
|---|---|
| Network | 101060 - Disclosure - Shares of Common Stock Outstanding (Detail) (http://www.xbrlsite.com/msft/role/DisclosureSharesOfCommonStockOutstandingDetail) |
| Table | Schedule of Capital Units [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101070 - Disclosure - Stockholders' Equity - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureStockholdersEquityAdditionalInformationDetail) |
| Table | Share Repurchases [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Share Repurchase Program [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2013-09-16 | Entity [Domain] | Share Repurchase Program Twenty Thirteen [Member] | Stock Repurchase Program Authorized Amount1 | 40000000000 | USD | INF | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2016-09-20 | Entity [Domain] | Share Repurchase Program Twenty Sixteen [Member] | Stock Repurchase Program Authorized Amount1 | 40000000000 | USD | INF | |
| 3 | http://www.sec.gov/CIK (0000789019) | 2017-06-30 | Entity [Domain] | Share Repurchase Program Twenty Sixteen [Member] | Stock Repurchase Program Remaining Authorized Repurchase Amount1 | 36800000000 | USD | -8 |
| Component: (Network and Table) | |
|---|---|
| Network | 101080 - Disclosure - Share Repurchases (Detail) (http://www.xbrlsite.com/msft/role/DisclosureShareRepurchasesDetail) |
| Table | Share Repurchases [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101090 - Disclosure - Dividends Declared (Detail) (http://www.xbrlsite.com/msft/role/DisclosureDividendsDeclaredDetail) |
| Table | Dividends [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101100 - Disclosure - Summary of Changes in Accumulated Other Comprehensive Income by Component (Detail) (http://www.xbrlsite.com/msft/role/DisclosureSummaryOfChangesInAccumulatedOtherComprehensiveIncomeByComponentDetail) |
| Table | Accumulated Other Comprehensive Income (Loss) [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101110 - Disclosure - Summary of Changes in Accumulated Other Comprehensive Income by Component (Parenthetical) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureSummaryOfChangesInAccumulatedOtherComprehensiveIncomeByComponentParentheticalDetail) |
| Table | Accumulated Other Comprehensive Income (Loss) [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101120 - Disclosure - Employee Stock and Savings Plans - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureEmployeeStockAndSavingsPlansAdditionalInformationDetail) |
| Table | Compensation Related Costs Disclosure [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101130 - Disclosure - Stock-Based Compensation Expense and Related Income Tax Benefits (Detail) (http://www.xbrlsite.com/msft/role/DisclosureStockBasedCompensationExpenseAndRelatedIncomeTaxBenefitsDetail) |
| Table | Schedule of Employee Service Share based Compensation, Allocation of Recognized Period Costs [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101140 - Disclosure - Assumptions Used in Estimating the Fair Value of Stock Award Grants (Detail) (http://www.xbrlsite.com/msft/role/DisclosureAssumptionsUsedInEstimatingFairValueOfStockAwardGrantsDetail) |
| Table | Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101150 - Disclosure - Stock Plan Activity (Detail) (http://www.xbrlsite.com/msft/role/DisclosureStockPlanActivityDetail) |
| Table | Schedule of Share based Compensation Arrangements by Share based Payment Award [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101160 - Disclosure - Stock Plan Activity (Parenthetical) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureStockPlanActivityParentheticalDetail) |
| Table | Schedule of Share based Compensation Arrangements by Share based Payment Award [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Award Type [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Performance Shares [Member] | Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period | 2000000 | Shares | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Performance Shares [Member] | Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period | 1000000 | Shares | -6 | |
| 3 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Performance Shares [Member] | Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period | 1000000 | Shares | -6 |
| Component: (Network and Table) | |
|---|---|
| Network | 101170 - Disclosure - Employee Purchased Shares (Detail) (http://www.xbrlsite.com/msft/role/DisclosureEmployeePurchasedSharesDetail) |
| Table | Employee Stock Purchase Plan [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101180 - Disclosure - Segment Revenue (Detail) (http://www.xbrlsite.com/msft/role/DisclosureSegmentRevenueDetail) |
| Table | Schedule of Segment Reporting Information, by Segment [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101190 - Disclosure - Operating Income (Loss) by Segment (Detail) (http://www.xbrlsite.com/msft/role/DisclosureOperatingIncomeLossBySegmentDetail) |
| Table | Schedule of Segment Reporting Information, by Segment [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101200 - Disclosure - Corporate and Other Operating Income (Loss) Activity (Detail) (http://www.xbrlsite.com/msft/role/DisclosureCorporateAndOtherOperatingIncomeLossActivityDetail) |
| Table | Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101210 - Disclosure - Segment Information and Geographic Data - Additional Information (Detail) (http://www.xbrlsite.com/msft/role/DisclosureSegmentInformationAndGeographicDataAdditionalInformationDetail) |
| Table | Schedule of Segment Reporting Information, by Segment [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Segment Reporting Disclosure Of Major Customers | No sales to an individual customer or country other than the United States accounted for more than 10% of fiscal year 2017, 2016, or 2015 revenue. |
| Component: (Network and Table) | |
|---|---|
| Network | 101220 - Disclosure - Revenue Classified by Major Geographic Areas (Detail) (http://www.xbrlsite.com/msft/role/DisclosureRevenueClassifiedByMajorGeographicAreasDetail) |
| Table | Geographic Information [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101230 - Disclosure - Revenue Classified by Significant Product and Service Offerings (Detail) (http://www.xbrlsite.com/msft/role/DisclosureRevenueClassifiedBySignificantProductAndServiceOfferingsDetail) |
| Table | Revenue from External Customers by Products and Services [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101240 - Disclosure - Revenue Classified by Significant Product and Service Offerings (Parenthetical) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureRevenueClassifiedBySignificantProductAndServiceOfferingsParentheticalDetail) |
| Table | Revenue from External Customers by Products and Services [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101250 - Disclosure - Long-Lived Assets, Excluding Financial Instruments and Tax Assets, Classified by Location of Controlling Statutory Company (Detail) (http://www.xbrlsite.com/msft/role/DisclosureLongLivedAssetsExcludingFinancialInstrumentsAndTaxAssetsClassifiedByLocationOfControllingStatutoryCompanyDetail) |
| Table | Certain Long Lived Assets by Geography [Table] |
| Component: (Network and Table) | |
|---|---|
| Network | 101260 - Disclosure - Quarterly Information (Unaudited) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureQuarterlyInformationUnauditedDetail) |
| Table | Quarterly Financial Information [Table] |
| # | Reporting Entity [Axis] | Period [Axis] | Legal Entity [Axis] | Concept | Fact Value | Unit | Rounding | Parenthetical Explanations |
|---|---|---|---|---|---|---|---|---|
| 1 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Sales Revenue Net | 89950000000 | USD | -6 | |
| 2 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Sales Revenue Net | 85320000000 | USD | -6 | |
| 3 | http://www.sec.gov/CIK (0000789019) | 2016-10-01 - 2016-12-31 | Entity [Domain] | Sales Revenue Net | 24090000000 | USD | -6 | |
| 4 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2015-09-30 | Entity [Domain] | Sales Revenue Net | 20379000000 | USD | -6 | |
| 5 | http://www.sec.gov/CIK (0000789019) | 2015-10-01 - 2015-12-31 | Entity [Domain] | Sales Revenue Net | 23796000000 | USD | -6 | |
| 6 | http://www.sec.gov/CIK (0000789019) | 2017-01-01 - 2017-03-31 | Entity [Domain] | Sales Revenue Net | 22090000000 | USD | -6 | |
| 7 | http://www.sec.gov/CIK (0000789019) | 2016-01-01 - 2016-03-31 | Entity [Domain] | Sales Revenue Net | 20531000000 | USD | -6 | |
| 8 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Sales Revenue Net | 93580000000 | USD | -6 | |
| 9 | http://www.sec.gov/CIK (0000789019) | 2017-04-01 - 2017-06-30 | Entity [Domain] | Sales Revenue Net | 23317000000 | USD | -6 | |
| 10 | http://www.sec.gov/CIK (0000789019) | 2016-04-01 - 2016-06-30 | Entity [Domain] | Sales Revenue Net | 20614000000 | USD | -6 | |
| 11 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2016-09-30 | Entity [Domain] | Sales Revenue Net | 20453000000 | USD | -6 | |
| 12 | http://www.sec.gov/CIK (0000789019) | 2015-10-01 - 2015-12-31 | Entity [Domain] | Gross Profit | 13924000000 | USD | -6 | |
| 13 | http://www.sec.gov/CIK (0000789019) | 2016-04-01 - 2016-06-30 | Entity [Domain] | Gross Profit | 12635000000 | USD | -6 | |
| 14 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2015-09-30 | Entity [Domain] | Gross Profit | 13172000000 | USD | -6 | |
| 15 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Gross Profit | 60542000000 | USD | -6 | |
| 16 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Gross Profit | 55689000000 | USD | -6 | |
| 17 | http://www.sec.gov/CIK (0000789019) | 2016-10-01 - 2016-12-31 | Entity [Domain] | Gross Profit | 14189000000 | USD | -6 | |
| 18 | http://www.sec.gov/CIK (0000789019) | 2017-04-01 - 2017-06-30 | Entity [Domain] | Gross Profit | 14861000000 | USD | -6 | |
| 19 | http://www.sec.gov/CIK (0000789019) | 2017-01-01 - 2017-03-31 | Entity [Domain] | Gross Profit | 14030000000 | USD | -6 | |
| 20 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Gross Profit | 52540000000 | USD | -6 | |
| 21 | http://www.sec.gov/CIK (0000789019) | 2016-01-01 - 2016-03-31 | Entity [Domain] | Gross Profit | 12809000000 | USD | -6 | |
| 22 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2016-09-30 | Entity [Domain] | Gross Profit | 12609000000 | USD | -6 | |
| 23 | http://www.sec.gov/CIK (0000789019) | 2016-04-01 - 2016-06-30 | Entity [Domain] | Operating Income Loss | 3080000000 | USD | -6 | |
| 24 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Operating Income Loss | 18161000000 | USD | -6 | |
| 25 | http://www.sec.gov/CIK (0000789019) | 2016-10-01 - 2016-12-31 | Entity [Domain] | Operating Income Loss | 6177000000 | USD | -6 | |
| 26 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Operating Income Loss | 22326000000 | USD | -6 | |
| 27 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2015-09-30 | Entity [Domain] | Operating Income Loss | 5793000000 | USD | -6 | |
| 28 | http://www.sec.gov/CIK (0000789019) | 2017-04-01 - 2017-06-30 | Entity [Domain] | Operating Income Loss | 5330000000 | USD | -6 | |
| 29 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2016-09-30 | Entity [Domain] | Operating Income Loss | 5225000000 | USD | -6 | |
| 30 | http://www.sec.gov/CIK (0000789019) | 2015-10-01 - 2015-12-31 | Entity [Domain] | Operating Income Loss | 6026000000 | USD | -6 | |
| 31 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Operating Income Loss | 20182000000 | USD | -6 | |
| 32 | http://www.sec.gov/CIK (0000789019) | 2017-01-01 - 2017-03-31 | Entity [Domain] | Operating Income Loss | 5594000000 | USD | -6 | |
| 33 | http://www.sec.gov/CIK (0000789019) | 2016-01-01 - 2016-03-31 | Entity [Domain] | Operating Income Loss | 5283000000 | USD | -6 | |
| 34 | http://www.sec.gov/CIK (0000789019) | 2016-01-01 - 2016-03-31 | Entity [Domain] | Net Income Loss | 3756000000 | USD | -6 | |
| 35 | http://www.sec.gov/CIK (0000789019) | 2015-10-01 - 2015-12-31 | Entity [Domain] | Net Income Loss | 5018000000 | USD | -6 | |
| 36 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Net Income Loss | 21204000000 | USD | -6 | |
| 37 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Net Income Loss | 12193000000 | USD | -6 | |
| 38 | http://www.sec.gov/CIK (0000789019) | 2016-10-01 - 2016-12-31 | Entity [Domain] | Net Income Loss | 5200000000 | USD | -6 | |
| 39 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Net Income Loss | 16798000000 | USD | -6 | |
| 40 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2015-09-30 | Entity [Domain] | Net Income Loss | 4902000000 | USD | -6 | |
| 41 | http://www.sec.gov/CIK (0000789019) | 2017-04-01 - 2017-06-30 | Entity [Domain] | Net Income Loss | 6513000000 | USD | -6 | |
| 42 | http://www.sec.gov/CIK (0000789019) | 2017-01-01 - 2017-03-31 | Entity [Domain] | Net Income Loss | 4801000000 | USD | -6 | |
| 43 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2016-09-30 | Entity [Domain] | Net Income Loss | 4690000000 | USD | -6 | |
| 44 | http://www.sec.gov/CIK (0000789019) | 2016-04-01 - 2016-06-30 | Entity [Domain] | Net Income Loss | 3122000000 | USD | -6 | |
| 45 | http://www.sec.gov/CIK (0000789019) | 2015-10-01 - 2015-12-31 | Entity [Domain] | Earnings Per Share Basic | 0.63 | USD / Shares | 2 | |
| 46 | http://www.sec.gov/CIK (0000789019) | 2016-01-01 - 2016-03-31 | Entity [Domain] | Earnings Per Share Basic | 0.48 | USD / Shares | 2 | |
| 47 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Basic | 2.12 | USD / Shares | 2 | |
| 48 | http://www.sec.gov/CIK (0000789019) | 2017-01-01 - 2017-03-31 | Entity [Domain] | Earnings Per Share Basic | 0.62 | USD / Shares | 2 | |
| 49 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2016-09-30 | Entity [Domain] | Earnings Per Share Basic | 0.60 | USD / Shares | 2 | |
| 50 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2015-09-30 | Entity [Domain] | Earnings Per Share Basic | 0.61 | USD / Shares | 2 | |
| 51 | http://www.sec.gov/CIK (0000789019) | 2017-04-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Basic | 0.84 | USD / Shares | 2 | |
| 52 | http://www.sec.gov/CIK (0000789019) | 2016-10-01 - 2016-12-31 | Entity [Domain] | Earnings Per Share Basic | 0.67 | USD / Shares | 2 | |
| 53 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Basic | 2.74 | USD / Shares | 2 | |
| 54 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Earnings Per Share Basic | 1.49 | USD / Shares | 2 | |
| 55 | http://www.sec.gov/CIK (0000789019) | 2016-04-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Basic | 0.40 | USD / Shares | 2 | |
| 56 | http://www.sec.gov/CIK (0000789019) | 2016-10-01 - 2016-12-31 | Entity [Domain] | Earnings Per Share Diluted | 0.66 | USD / Shares | 2 | |
| 57 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2015-09-30 | Entity [Domain] | Earnings Per Share Diluted | 0.61 | USD / Shares | 2 | |
| 58 | http://www.sec.gov/CIK (0000789019) | 2015-10-01 - 2015-12-31 | Entity [Domain] | Earnings Per Share Diluted | 0.62 | USD / Shares | 2 | |
| 59 | http://www.sec.gov/CIK (0000789019) | 2017-04-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Diluted | 0.83 | USD / Shares | 2 | |
| 60 | http://www.sec.gov/CIK (0000789019) | 2014-07-01 - 2015-06-30 | Entity [Domain] | Earnings Per Share Diluted | 1.48 | USD / Shares | 2 | |
| 61 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2017-06-30 | Entity [Domain] | Earnings Per Share Diluted | 2.71 | USD / Shares | 2 | |
| 62 | http://www.sec.gov/CIK (0000789019) | 2017-01-01 - 2017-03-31 | Entity [Domain] | Earnings Per Share Diluted | 0.61 | USD / Shares | 2 | |
| 63 | http://www.sec.gov/CIK (0000789019) | 2016-01-01 - 2016-03-31 | Entity [Domain] | Earnings Per Share Diluted | 0.47 | USD / Shares | 2 | |
| 64 | http://www.sec.gov/CIK (0000789019) | 2016-04-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Diluted | 0.39 | USD / Shares | 2 | |
| 65 | http://www.sec.gov/CIK (0000789019) | 2016-07-01 - 2016-09-30 | Entity [Domain] | Earnings Per Share Diluted | 0.60 | USD / Shares | 2 | |
| 66 | http://www.sec.gov/CIK (0000789019) | 2015-07-01 - 2016-06-30 | Entity [Domain] | Earnings Per Share Diluted | 2.10 | USD / Shares | 2 |
| Component: (Network and Table) | |
|---|---|
| Network | 101270 - Disclosure - Quarterly Information (Unaudited) (Parenthetical) (Detail) (http://www.xbrlsite.com/msft/role/DisclosureQuarterlyInformationUnauditedParentheticalDetail) |
| Table | Quarterly Financial Information [Table] |