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Contingencies (Health Care Cost Recovery Litigation) (Details) | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2022 USD ($) | Nov. 30, 1998 USD ($) state | Jun. 30, 2024 USD ($) claim court manufacturer | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) claim court manufacturer | Jun. 30, 2023 USD ($) | Jul. 27, 2023 claim | Jul. 25, 2022 claim | Mar. 31, 2019 manufacturer
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Litigation settlement | $ 90,000,000 |  |  |  |  |  |  |  |
Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of federal courts | court |  |  | 9 |  | 9 |  |  |  |
Number of state courts | court |  |  | 8 |  | 8 |  |  |  |
Number of cases pending | claim |  |  |  |  |  |  | 1 | 1 |
Number of states with settled litigation | state |  | 46 |  |  |  |  |  |  |
State settlement agreements annual payments |  | $ 10,400,000,000 |  |  |  |  |  |  |
State settlement agreements attorney fees annual cap |  | $ 500,000,000 |  |  |  |  |  |  |
Litigation settlement |  |  | $ 900,000,000 | $ 1,000,000,000.0 | $ 1,800,000,000 | $ 1,900,000,000 |  |  |
Threatened Litigation [Member] | Canada [Member] | Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of cases pending | claim |  |  | 10 |  | 10 |  |  |  |
Canadian Tobacco Manufacturers [Member] | Canada [Member] | Smoking and Health Class Actions and Aggregated Claims Litigation [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of manufacturers | manufacturer |  |  | 3 |  | 3 |  |  |  | 3

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