Document and Entity Information Document - USD ($)	12 Months Ended
	Aug. 02, 2015	Sep. 15, 2015	Jan. 30, 2015
Entity Information [Line Items]
Entity Registrant Name	CAMPBELL SOUP CO
Entity Central Index Key	0000016732
Current Fiscal Year End Date	--08-02
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Aug. 02, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		309,777,647
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 8,888,874,209