|
Derivative Instruments (Effect Of Derivative Instruments Not Designated As Hedges On Consolidated Statement Of Operations Summary) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Oct. 26, 2013
|
Oct. 27, 2012
|
|
| Derivative [Line Items] | ||
| Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | $ 71 | $ 76 |
|
Foreign Exchange Contract | Other income (loss), net [Member]
|
||
| Derivative [Line Items] | ||
| Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | 43 | 53 |
|
Total Return Swaps-Deferred Compensation [Member] | Operating Expenses [Member]
|
||
| Derivative [Line Items] | ||
| Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | 17 | 14 |
|
Equity Derivatives [Member] | Other income (loss), net [Member]
|
||
| Derivative [Line Items] | ||
| Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | $ 11 | $ 9 |