| Component: (Network and Table) | |
|---|---|
| Network | 1120 - Disclosure - Long-Lived Assets, Excluding Financial Instruments and Tax Assets, Classified by Location of Controlling Statutory Company (Detail) (http://www.microsoft.com/taxonomy/role/DisclosureLongLivedAssetsExcludingFinancialInstrumentsAndTaxAssetsClassifiedByLocationOfControllingStatutoryCompany) |
| Table | Certain Long-Lived Assets by Geography [Table] |
| Reporting Entity [Axis] | 0000789019 (http://www.sec.gov/CIK) |
| Legal Entity [Axis] | Entity [Domain] |
| Certain Long-Lived Assets by Geography [Line Items] | Period [Axis] | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2013-06-30 | 2012-06-30 | 2011-06-30 | ||||||||||
| Statement Geographical [Axis] | Statement Geographical [Axis] | Statement Geographical [Axis] | ||||||||||
| U S | Luxembourg [Member] | Other Countries [Member] | Segment Geographical [Domain] | U S | Luxembourg [Member] | Other Countries [Member] | Segment Geographical [Domain] | U S | Luxembourg [Member] | Other Countries [Member] | Segment Geographical [Domain] | |
Long-lived assets | 16,615,000,000 | 6,943,000,000 | 4,171,000,000 | 27,729,000,000 | 14,081,000,000 | 6,975,000,000 | 3,835,000,000 | 24,891,000,000 | 18,498,000,000 | 0 | 2,989,000,000 | 21,487,000,000 |