Business And Geographic Segment Information (Schedule Of Segment Reporting - Net Sales) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Oct. 27, 2013	Oct. 28, 2012
Segment Reporting Information [Line Items]
Net sales	$ 2,165	$ 2,205
U.S. Simple Meals [Member]
Segment Reporting Information [Line Items]
Net sales	860	896
Global Baking And Snacking [Member]
Segment Reporting Information [Line Items]
Net sales	609	574
International Simple Meals And Beverages [Member]
Segment Reporting Information [Line Items]
Net sales	193	223
U.S. Beverages [Member]
Segment Reporting Information [Line Items]
Net sales	173	189
Bolthouse and Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales	$ 330	$ 323