v3.19.1

Derivative Instruments (Schedule of Notional Amounts of Derivatives Outstanding) (Details) - USD ($) | Apr. 27, 2019 | Jul. 28, 2018
--- | --- | ---
Derivative [Line Items] |  |
Derivatives | $ 8,818,000,000 | $ 10,011,000,000
Derivatives designated as hedging instruments: | Foreign currency derivatives |  |
Derivative [Line Items] |  |
Derivatives | 623,000,000 | 147,000,000
Derivatives designated as hedging instruments: | Interest rate derivatives |  |
Derivative [Line Items] |  |
Derivatives | 4,500,000,000 | 6,750,000,000
Derivatives designated as hedging instruments: | Net investment hedging instruments |  |
Derivative [Line Items] |  |
Derivatives | 363,000,000 | 250,000,000
Derivatives not designated as hedging instruments: | Foreign currency derivatives |  |
Derivative [Line Items] |  |
Derivatives | 2,760,000,000 | 2,298,000,000
Derivatives not designated as hedging instruments: | Total return swaps—deferred compensation |  |
Derivative [Line Items] |  |
Derivatives | $ 572,000,000 | $ 566,000,000

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- 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
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