Business And Geographic Segment Information (Additional Product Information For Net Sales) (Details) - USD ($) $ in Millions	3 Months Ended
Nov. 01, 2015	Nov. 02, 2014
Segment Reporting Information [Line Items]
Net sales	$ 2,203	$ 2,255
Simple Meals [Member]
Segment Reporting Information [Line Items]
Net sales	1,293	1,311
Baked Snacks [Member]
Segment Reporting Information [Line Items]
Net sales	634	663
Beverages [Member]
Segment Reporting Information [Line Items]
Net sales	$ 276	$ 281

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

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 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Name:	us-gaap_SalesRevenueGoodsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration