Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Aug. 01, 2021	Aug. 02, 2020	Jul. 28, 2019
Income Statement [Abstract]
Net sales		$ 8,476	$ 8,691	$ 8,107
Costs and expenses
Cost of products sold		5,665	5,692	5,414
Marketing and selling expenses		817	947	842
Administrative expenses		598	622	610
Research and development expenses		84	93	91
Other expenses / (income)		(254)	221	140
Restructuring charges		21	9	31
Total costs and expenses		6,931	7,584	7,128
Earnings before interest and taxes		1,545	1,107	979
Interest expense	[1]	210	345	356
Interest income		1	4	2
Earnings before taxes		1,336	766	625
Taxes on earnings		328	174	151
Earnings from continuing operations		1,008	592	474
Earnings (loss) from discontinued operations		(6)	1,036	(263)
Net earnings		1,002	1,628	211
Less: Net earnings (loss) attributable to noncontrolling interests		0	0	0
Net earnings attributable to Campbell Soup Company		$ 1,002	$ 1,628	$ 211
Per Share - Basic
Earnings from continuing operations attributable to Campbell Soup Company		$ 3.33	$ 1.96	$ 1.57
Earnings (loss) from discontinued operations		(0.02)	3.43	(0.87)
Net earnings attributable to Campbell Soup Company		$ 3.31	$ 5.39	$ 0.70
Weighted average shares outstanding - basic		303	302	301
Per Share - Assuming Dilution
Earnings from continuing operations attributable to Campbell Soup Company		$ 3.30	$ 1.95	$ 1.57
Earnings (loss) from discontinued operations		(0.02)	3.41	(0.87)
Net earnings attributable to Campbell Soup Company	[2]	$ 3.29	$ 5.36	$ 0.70
Weighted average shares outstanding - assuming dilution		305	304	302

[1] In 2020, we recognized a loss of $75 (including $65 of premium, fees and other costs paid with the tender offers and unamortized debt issuance costs). See Note 12 for additional information.

[2] Sum of the individual amounts may not add due to rounding.