Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Oct. 29, 2017	Oct. 30, 2016
Income Statement [Abstract]
Net sales	$ 2,161	$ 2,202
Costs and expenses
Cost of products sold	1,378	1,351
Marketing and selling expenses	219	230
Administrative expenses	149	125
Research and development expenses	30	27
Other expenses / (income)	(29)	11
Restructuring charges	2	1
Total costs and expenses	1,749	1,745
Earnings before interest and taxes	412	457
Interest expense	31	29
Interest income	1	1
Earnings before taxes	382	429
Taxes on earnings	107	137
Net earnings	275	292
Less: Net earnings (loss) attributable to noncontrolling interests	0	0
Net earnings attributable to Campbell Soup Company	$ 275	$ 292
Per Share - Basic
Net earnings attributable to Campbell Soup Company	$ 0.91	$ 0.95
Dividends	$ 0.35	$ 0.35
Weighted average shares outstanding - basic	301	308
Per Share - Assuming Dilution
Net earnings attributable to Campbell Soup Company	$ 0.91	$ 0.94
Weighted average shares outstanding - assuming dilution	302	310