Business And Geographic Segment Information (Schedule Of Segment Reporting - Earnings Before Interest And Taxes) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Oct. 28, 2012	Jul. 29, 2012	Jul. 28, 2013		Jul. 29, 2012		Jul. 31, 2011
Segment Reporting Information [Line Items]
Earnings before interest and taxes			$ 1,080		$ 1,155		$ 1,212
Business Combination, Acquisition Related Costs	10	5	10		5		0
U.S. Simple Meals [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes			731		658		657
Global Baking And Snacking [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes			316		315		355
International Simple Meals And Beverages [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes			108		106		128
U.S. Beverages [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes			120		134		182
Bolthouse and Foodservice [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes			116		85		82
Corporate [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes			(260)	[1]	(136)	[1]	(132)	[1]
Restructuring Charges [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes			$ (51)	[2]	$ (7)	[2]	$ (60)	[2]

[1] Represents unallocated corporate expenses. Restructuring-related costs of $91 and acquisition costs of $10 were included in unallocated corporate expenses for 2013. Acquisition costs of $5 were included in unallocated corporate expenses for 2012.

[2] See Note 8 for additional information.