| Cover Document | Aug. 29, 2024 |
| Cover [Abstract] | |
| Entity Central Index Key | 0000016732 |
| Title of 12(b) Security | Capital Stock, par value $.0375 |
| Entity Incorporation, State or Country Code | NJ |
| Document Type | 8-K/A |
| Document Period End Date | Aug. 29, 2024 |
| Entity Registrant Name | CAMPBELL SOUP CO |
| Entity File Number | 1-3822 |
| Entity Tax Identification Number | 21-0419870 |
| Entity Address, Address Line One | One Campbell Place |
| Entity Address, City or Town | Camden |
| Entity Address, State or Province | NJ |
| Entity Address, Postal Zip Code | 08103 |
| City Area Code | 856 |
| Local Phone Number | 342-4800 |
| Trading Symbol | CPB |
| Security Exchange Name | NASDAQ |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Amendment Flag | true |
| Amendment Description | On August 29, 2024, Campbell Soup Company (the “Company”) issued an earnings release and filed a Current Report on Form 8-K announcing financial results for the quarter ended July 28, 2024 (“Original Earnings Release”). Subsequent to the filing of the Original Earnings Release, the Company determined there was one error under the heading “Full-Year Fiscal 2025 Guidance.” As a result, the Company is filing this Current Report on Form 8-K/A to furnish an earnings release announcing the financial results for the quarter ended July 28, 2024, as revised to correct the error (“Revised Earnings Release”). |
