v3.5.0.2

Derivative Instruments (Effect Of Derivative Instruments Not Designated As Hedges On Consolidated Statement Of Operations Summary) (Details) - Derivatives not designated as hedging instruments: - USD ($) $ in Millions | 3 Months Ended
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Oct. 29, 2016 | Oct. 24, 2015
Derivative Instruments, Gain (Loss) [Line Items] |  |
GAINS (LOSSES) FOR THE PERIOD | $ (18) | $ (2)
Foreign currency derivatives | Other income (loss), net |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
GAINS (LOSSES) FOR THE PERIOD | (16) | 4
Total return swaps—deferred compensation | Operating expenses |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
GAINS (LOSSES) FOR THE PERIOD | (3) | (16)
Equity derivatives/warrants | Other income (loss), net |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
GAINS (LOSSES) FOR THE PERIOD | $ 1 | $ 10

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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