Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	May 01, 2022	May 02, 2021	May 01, 2022	May 02, 2021
Income Statement [Abstract]
Net sales	$ 2,130	$ 1,984	$ 6,575	$ 6,603
Costs and expenses
Cost of products sold	1,465	1,356	4,519	4,379
Marketing and selling expenses	188	202	555	642
Administrative expenses	151	153	454	452
Research and development expenses	22	22	64	61
Other expenses / (income)	10	(23)	(10)	(86)
Restructuring charges	0	2	0	21
Total costs and expenses	1,836	1,712	5,582	5,469
Earnings before interest and taxes	294	272	993	1,134
Interest expense	51	53	144	163
Interest income	1	0	1	1
Earnings before taxes	244	219	850	972
Taxes on earnings	56	53	189	252
Earnings from continuing operations	188	166	661	720
Loss from discontinued operations	0	(6)	0	(6)
Net earnings	188	160	661	714
Less: Net earnings (loss) attributable to noncontrolling interests	0	0	0	0
Net earnings attributable to Campbell Soup Company	$ 188	$ 160	$ 661	$ 714
Per Share - Basic
Earnings from continuing operations attributable to Campbell Soup Company	$ 0.62	$ 0.55	$ 2.19	$ 2.38
Loss from discontinued operations	0	(0.02)	0	(0.02)
Net earnings attributable to Campbell Soup Company	$ 0.62	$ 0.53	$ 2.19	$ 2.36
Weighted average shares outstanding - basic	301	303	302	303
Per Share - Assuming Dilution
Earnings from continuing operations attributable to Campbell Soup Company	$ 0.62	$ 0.54	$ 2.18	$ 2.36
Loss from discontinued operations	0	(0.02)	0	(0.02)
Net earnings attributable to Campbell Soup Company	$ 0.62	$ 0.52	$ 2.18	$ 2.34
Weighted average shares outstanding - assuming dilution	302	305	303	305