Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Nov. 01, 2020	Oct. 27, 2019
Income Statement [Abstract]
Net sales	$ 2,340	$ 2,183
Costs and expenses
Cost of products sold	1,527	1,445
Marketing and selling expenses	208	206
Administrative expenses	141	134
Research and development expenses	20	22
Other expenses / (income)	(18)	56
Restructuring charges	1	3
Total costs and expenses	1,879	1,866
Earnings before interest and taxes	461	317
Interest expense	55	80
Interest income	0	0
Earnings before taxes	406	237
Taxes on earnings	97	68
Earnings from continuing operations	309	169
Earnings (loss) from discontinued operations	0	(3)
Net earnings	309	166
Less: Net earnings (loss) attributable to noncontrolling interests	0	0
Net earnings attributable to Campbell Soup Company	$ 309	$ 166
Per Share - Basic
Earnings from continuing operations attributable to Campbell Soup Company	$ 1.02	$ 0.56
Earnings (loss) from discontinued operations	0	(0.01)
Net earnings attributable to Campbell Soup Company	$ 1.02	$ 0.55
Weighted average shares outstanding - basic	302	301
Per Share - Assuming Dilution
Earnings from continuing operations attributable to Campbell Soup Company	$ 1.02	$ 0.56
Earnings (loss) from discontinued operations	0	(0.01)
Net earnings attributable to Campbell Soup Company	$ 1.02	$ 0.55
Weighted average shares outstanding - assuming dilution	304	303