Business And Geographic Segment Information (Schedule Of Segment Reporting - Net Sales) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 28, 2013	Apr. 29, 2012	Apr. 28, 2013	Apr. 29, 2012
Segment Reporting Information [Line Items]
Net sales	$ 2,094	$ 1,821	$ 6,763	$ 6,094
U.S. Simple Meals [Member]
Segment Reporting Information [Line Items]
Net sales	627	567	2,356	2,265
Global Baking And Snacking [Member]
Segment Reporting Information [Line Items]
Net sales	568	543	1,703	1,637
International Simple Meals And Beverages [Member]
Segment Reporting Information [Line Items]
Net sales	357	349	1,116	1,110
U.S. Beverages [Member]
Segment Reporting Information [Line Items]
Net sales	198	208	569	593
Bolthouse and Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales	$ 344	$ 154	$ 1,019	$ 489