Business And Geographic Segment Information (Schedule Of Segment Reporting - Net Sales) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 26, 2014	Jan. 27, 2013	Jan. 26, 2014	Jan. 27, 2013
Segment Reporting Information [Line Items]
Net sales	$ 2,281	$ 2,162	$ 4,446	$ 4,367
U.S. Simple Meals [Member]
Segment Reporting Information [Line Items]
Net sales	894	833	1,754	1,729
Global Baking And Snacking [Member]
Segment Reporting Information [Line Items]
Net sales	639	561	1,248	1,135
International Simple Meals And Beverages [Member]
Segment Reporting Information [Line Items]
Net sales	213	234	406	457
U.S. Beverages [Member]
Segment Reporting Information [Line Items]
Net sales	176	182	349	371
Bolthouse and Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales	$ 359	$ 352	$ 689	$ 675