Business And Geographic Segment Information (Schedule Of Segment Reporting - Earnings Before Interest And Taxes) (Details) - USD ($) $ in Millions		3 Months Ended
		Oct. 30, 2016	Nov. 01, 2015
Segment Reporting Information [Line Items]
Earnings before interest and taxes		$ 457	$ 315
Americas Simple Meals and Beverages [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes		383	363
Global Biscuits and Snacks [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes		112	114
Campbell Fresh [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes		1	18
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes	[1]	(38)	(159)
Defined Benefit Plan, Actuarial Gain (Loss)		(20)	(128)
Corporate, Non-Segment [Member] | Other Cost Savings Implementation Costs [Member]
Segment Reporting Information [Line Items]
Restructuring and Related Cost, Incurred Cost		8	15
Restructuring Charges [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes	[2]	$ (1)	$ (21)

[1] Represents unallocated items. Pension and postretirement benefit mark-to-market adjustments are included in Corporate. Losses were $20 and $128 in the three-month periods ended October 30, 2016, and November 1, 2015, respectively. Costs of $8 and $15 related to the implementation of our new organizational structure and cost savings initiatives were included in the three-month periods ended October 30, 2016, and November 1, 2015, respectively.

[2] See Note 6 for additional information.