|
Derivative Instruments (Schedule Of Notional Amounts Of Derivatives Outstanding) (Details) (USD $)
In Millions, unless otherwise specified |
Apr. 25, 2015
|
Jul. 26, 2014
|
|---|---|---|
| Derivative [Line Items] | ||
| Derivatives | $ 14,140 | $ 15,557 |
| Derivatives designated as hedging instruments: | Foreign currency derivatives | ||
| Derivative [Line Items] | ||
| Derivatives | 654 | 1,618 |
| Derivatives designated as hedging instruments: | Interest rate derivatives | ||
| Derivative [Line Items] | ||
| Derivatives | 10,400 | 10,400 |
| Derivatives designated as hedging instruments: | Net investment hedging instruments | ||
| Derivative [Line Items] | ||
| Derivatives | 188 | 345 |
| Derivatives designated as hedging instruments: | Equity derivatives | ||
| Derivative [Line Items] | ||
| Derivatives | 238 | 238 |
| Derivatives not designated as hedging instruments: | Foreign currency derivatives | ||
| Derivative [Line Items] | ||
| Derivatives | 2,187 | 2,528 |
| Derivatives not designated as hedging instruments: | Total return swaps—deferred compensation | ||
| Derivative [Line Items] | ||
| Derivatives | $ 473 | $ 428 |