Trunk Club Acquisition (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Nov. 01, 2014	Aug. 22, 2014
Business Acquisition [Line Items]
Acquisition date	Aug. 22, 2014
Outstanding equity of Trunk Club acquired (in percent)		100.00%
Purchase price fair value	$ 357
Total unrecognized stock-based compensation expense related to Trunk Club long-term incentive plan units		46
Net assets acquired		311
Current assets		21
Intangible assets		59
Other non-current assets		2
Net liabilities assumed		32
Indemnity holdback [Member]
Business Acquisition [Line Items]
Purchase price fair value	35
Trunk Club [Member]
Business Acquisition [Line Items]
Goodwill		$ 261

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Unrecognized cost of unvested share-based compensation awards.

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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