|
Comprehensive Income (AOCI Components) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Oct. 26, 2013
|
Jul. 27, 2013
|
Oct. 26, 2013
Available-for-sale Securities [Member]
|
Oct. 27, 2012
Available-for-sale Securities [Member]
|
Oct. 26, 2013
Derivative [Member]
|
Oct. 27, 2012
Derivative [Member]
|
Oct. 26, 2013
Accumulated Translation Adjustment [Member]
|
Oct. 27, 2012
Accumulated Translation Adjustment [Member]
|
Oct. 26, 2013
Parent [Member]
|
Oct. 27, 2012
Parent [Member]
|
|
| Accumulated Other Comprehensive Income (Loss), Net of Tax | $ 772 | $ 608 | $ 379 | $ 409 | $ 8 | $ (53) | $ 221 | $ 305 | $ 608 | $ 661 |
| OCI, Unrealized Holding Gain (Loss) on Securities Arising During Period, before Reclassification & Tax | 170 | 3 | ||||||||
| Amount Reclassified Out of OCI, Before Tax | (83) | (27) | ||||||||
| OCI, Unrealized Gain (Loss) on Derivatives Arising During Period, before Reclassification & Tax | 38 | 66 | ||||||||
| Amount Reclassified Out of OCI, Before Tax | (9) | 5 | ||||||||
| OCI, Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax | 76 | 124 | ||||||||
| Amount Reclassified Out of OCI, Before Tax | 0 | 0 | ||||||||
| Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent | 284 | 193 | ||||||||
| Amount Reclassified Out of OCI, Before Tax | (92) | (22) | ||||||||
| Tax benefit (expense) | (22) | 11 | (3) | 0 | (3) | (10) | (28) | 1 | ||
| Accumulated Other Comprehensive Income (Loss), Net of Tax | $ 772 | $ 608 | $ 444 | $ 396 | $ 34 | $ 18 | $ 294 | $ 419 | $ 772 | $ 833 |