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Contingencies (Schedule of Pending Cases) (Details) $ in Millions |  | 3 Months Ended | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 27, 2025 claim case lawsuit | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) | Dec. 31, 2024 USD ($) | Oct. 28, 2024 claim | Jun. 30, 2024 USD ($) | Dec. 31, 2023 USD ($) | Oct. 23, 2023 claim
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Pre-tax charge | $ |  | $ 68 | $ 136 |  | $ 68 | $ 136 | $ 95 | $ 96 |  | $ 151 | $ 346 |
Payments | $ |  | (30) | (37) |  | (76) | (300) |  |  |  |  |  |
Tobacco and Health Judgment [Member] | Tobacco and Health and Certain Other Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency accrual, provision | $ |  | 4 | 21 |  | 44 | 59 |  |  |  |  |  |
Shareholder derivative lawsuits [Member] | Tobacco and Health and Certain Other Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency accrual, provision | $ |  | $ 0 | $ 0 |  | $ 0 | $ 0 |  |  |  |  |  |
Individual Smoking and Health Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  | 178 |  |  | 167
Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  | 1 |  |  | 1
E-vapor Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency accrual, provision | $ |  |  |  | $ 10 |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  | 75 |  |  | 5,177
Other Tabacco-Related Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  | 3 |  |  | 3
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, class action lawsuit | lawsuit | 17 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Opted Out of Settlement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases | 12 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 181 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Illinois [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 28 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | New Mexico [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 9 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Massachusetts [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 83 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Oregon [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 15 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Hawaii [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 8 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | U.S. Virgin Islands [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 11 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Florida [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 12 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | ETS Smoking and Health Case, Flight Attendants [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases | case | 1 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 1 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | E-vapor Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 16 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | E-vapor Cases [Member] | Canada [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 3 |  |  |  |  |  |  |  |  |  |  |
Loss contingency, class action lawsuit | lawsuit | 3 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | E-vapor Cases [Member] | Pending Individual Lawsuits [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 1 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Other Tabacco-Related Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 3 |  |  |  |  |  |  |  |  |  |  |
Loss contingency, number of inactive cases | case | 1 |  |  |  |  |  |  |  |  |  |  |
Loss contingency, number of inactive class action lawsuits | case | 2 |  |  |  |  |  |  |  |  |  |  |

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