|
Supplemental Information Additional Information (Detail) (USD $)
Share data in Millions, unless otherwise specified |
Oct. 27, 2012
|
Jul. 28, 2012
|
|---|---|---|
| Supplementary Information[Line Items] | ||
| Aggregate Authorized Common Stock Repurchase | $ 82,000,000,000 | |
| Repurchases of common stock under the repurchase program, shares | 3,755 | 3,740 |
| Repurchases of common stock under the repurchase program, value | 76,386,000,000 | 76,133,000,000 |
|
Common Stock [Member]
|
||
| Supplementary Information[Line Items] | ||
| Repurchases of common stock under the repurchase program, shares | 3,755 | |
|
Common Stock Including Additional Paid in Capital [Member]
|
||
| Supplementary Information[Line Items] | ||
| Repurchases of common stock under the repurchase program, value | 17,155,000,000 | |
|
Retained Earnings [Member]
|
||
| Supplementary Information[Line Items] | ||
| Repurchases of common stock under the repurchase program, value | 59,231,000,000 | |
|
Parent [Member]
|
||
| Supplementary Information[Line Items] | ||
| Repurchases of common stock under the repurchase program, value | $ 76,386,000,000 |