Business And Geographic Segment Information (Schedule Of Segment Reporting - Net Sales) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Aug. 02, 2015	May. 03, 2015	Feb. 01, 2015	Nov. 02, 2014	Aug. 03, 2014	Apr. 27, 2014	Jan. 26, 2014	Oct. 27, 2013	Aug. 02, 2015	Aug. 03, 2014	Jul. 28, 2013
Segment Reporting Information [Line Items]
Net sales	$ 1,693	$ 1,900	$ 2,234	$ 2,255	$ 1,852	$ 1,970	$ 2,281	$ 2,165	$ 8,082	$ 8,268	$ 8,052
U.S. Simple Meals [Member]
Segment Reporting Information [Line Items]
Net sales									2,930	2,944	2,849
Global Baking And Snacking [Member]
Segment Reporting Information [Line Items]
Net sales									2,375	2,440	2,273
International Simple Meals And Beverages [Member]
Segment Reporting Information [Line Items]
Net sales									700	780	869
U.S. Beverages [Member]
Segment Reporting Information [Line Items]
Net sales									689	723	742
Bolthouse and Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales									$ 1,388	$ 1,381	$ 1,319