Consolidated Statements of Earnings (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Oct. 28, 2012	Oct. 30, 2011
Income Statement [Abstract]
Net sales	$ 2,336	$ 2,161
Costs and expenses
Cost of products sold	1,471	1,307
Marketing and selling expenses	254	261
Administrative expenses	162	145
Research and development expenses	29	30
Other expenses / (income)	13	0
Restructuring charges	22	2
Total costs and expenses	1,951	1,745
Earnings before interest and taxes	385	416
Interest expense	36	30
Interest income	3	2
Earnings before taxes	352	388
Taxes on earnings	109	125
Net earnings	243	263
Less: Net earnings (loss) attributable to noncontrolling interests	(2)	(2)
Net earnings attributable to Campbell Soup Company	$ 245	$ 265
Per Share - Basic
Net earnings attributable to Campbell Soup Company	$ 0.78	$ 0.82
Dividends	$ 0.29	$ 0.29
Weighted average shares outstanding - basic	314	320
Per Share - Assuming Dilution
Net earnings attributable to Campbell Soup Company	$ 0.78	$ 0.82
Weighted average shares outstanding - assuming dilution	316	322