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Income Taxes (Gross Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 02, 2018 | Sep. 03, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |
Gross unrecognized tax benefit at beginning of year | $ 52 | $ 52
Gross increases—current year tax positions | 6 | 3
Gross increases—tax positions in prior years | 6 | 17
Gross decreases—tax positions in prior years | (17) | 0
Settlements | (1) | (11)
Lapse of statute of limitations | (10) | (9)
Gross unrecognized tax benefit at end of year | $ 36 | $ 52

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=84176650&loc=SL37586934-109318 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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