Document and Entity Information Document	9 Months Ended
	May 03, 2015	Jun. 05, 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-Q
Document Period End Date	May 03, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		310,520,682
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes