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Contingencies (Other Disputes Under the State Settlement Agreements) (Details) - PM USA [Member] - USD ($) $ in Millions | 3 Months Ended | 72 Months Ended
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023
Loss Contingencies [Line Items] |  |
Payments for legal settlements |  | $ 7
Cost of Sales [Member] |  |
Loss Contingencies [Line Items] |  |
Payments for legal settlements | $ 5 |
Interest Expense [Member] |  |
Loss Contingencies [Line Items] |  |
Payments for legal settlements | $ 2 |

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