Unearned Revenue - Additional Information (Detail) - USD ($) $ in Millions |
Mar. 31, 2016 |
Jun. 30, 2015 |
|---|---|---|
| Deferred Revenue Arrangement [Line Items] | ||
| Unearned revenue | $ 25,893 | $ 25,318 |
| Windows 10 Licenses | ||
| Deferred Revenue Arrangement [Line Items] | ||
| Unearned revenue | $ 4,600 |