Product Recall (Details) (Plum [Member], USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
Oct. 27, 2013
Plum [Member]
Product Liability Contingency [Line Items]
Inventory recall expense	$ 16
Inventory recall expense, after tax	$ 11
Inventory recall expense, per diluted share	$ 0.03

Reflects the amount charged against earnings comprised of the costs to announce and effect a recall of defective merchandise.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Name:	us-gaap_InventoryRecallExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration