Share Repurchases (Detail) - Share Repurchase Program - USD ($) shares in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
Mar. 31, 2016 |
Mar. 31, 2015 |
|
| Share Repurchases [Line Items] | ||||
| Shares of common stock repurchased | 69 | 116 | 224 | 202 |
| Value of common stock repurchased | $ 3,600 | $ 5,000 | $ 11,200 | $ 9,000 |