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Contingencies (Judgments Paid and Provisions for Tobacco and Health Litigation) (Details) - USD ($) $ in Millions | 12 Months Ended | 243 Months Ended
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2024
Loss Contingency Accrual [Roll Forward] |  |  |  |
Accrued liability for tobacco and health and certain other litigation items at beginning of period | $ 346 | $ 71 | $ 91 |
Payments | (351) | (155) | (151) |
Accrued liability for tobacco and health and certain other litigation items at end of period | 96 | 346 | 71 | $ 96
Agreement To Resolve Shareholder Class Action [Member] |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |
Provision related to litigation recorded | 0 | 98 | 27 |
Related Interest Costs [Member] |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |
Provision related to litigation recorded | 1 | 11 | 3 |
Tobacco and Health Judgment [Member] |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |
Judgments paid (approximately) |  |  |  | 1,100
Litigation settlement interest (approximately) |  |  |  | 242
Tobacco and Health Judgment [Member] | Tobacco and Health Litigation [Member] |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |
Provision related to litigation recorded | 70 | 79 | 101 |
JUUL [Member] | Tobacco and Health Litigation [Member] |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |
Provision related to litigation recorded | 30 | $ 242 | $ 0 |
Engle Progeny Cases [Member] |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |
Judgments paid (approximately) |  |  |  | 449
Litigation settlement interest (approximately) |  |  |  | 61
Pending Litigation [Member] | PM USA [Member] | Assets [Member] |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |
Security posted for appeal of judgments | $ 31 |  |  | $ 31

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