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v3.25.3

Basis of Presentations and Significant Accounting Policies (Details) | 12 Months Ended
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Aug. 02, 2026 | Aug. 03, 2025
Fiscal Period Number Of Weeks |  | 53
Forecast |  |
Fiscal Period Number Of Weeks | 52 |

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- Definition Fiscal Period Number Of Weeks + References No definition available. + Details
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Namespace Prefix: | cpb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |