v2.4.0.8

Derivative Instruments (Schedule Of Notional Amounts Of Derivatives Outstanding) (Details) (USD $) In Millions, unless otherwise specified | Oct. 26, 2013 | Jul. 27, 2013
--- | --- | ---
Derivative [Line Items] |  |
Notional amount of derivatives | $ 12,800 | $ 12,992
Designated as Hedging Instrument [Member] | Foreign Exchange Contract |  |
Derivative [Line Items] |  |
Notional amount of derivatives | 1,772 | 1,885
Designated as Hedging Instrument [Member] | Interest Rate Derivatives [Member] |  |
Derivative [Line Items] |  |
Notional amount of derivatives | 5,750 | 5,250
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |
Derivative [Line Items] |  |
Notional amount of derivatives | 577 | 662
Designated as Hedging Instrument [Member] | Equity [Member] |  |
Derivative [Line Items] |  |
Notional amount of derivatives | 779 | 1,098
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange Contract |  |
Derivative [Line Items] |  |
Notional amount of derivatives | 3,526 | 3,739
Derivatives Not Designated As Hedging Instruments [Member] | Total Return Swap [Member] |  |
Derivative [Line Items] |  |
Notional amount of derivatives | $ 396 | $ 358

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration