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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Investments [Line Items] |  |  |  |  |  |
Unrecognized tax benefits | $ 842 |  | $ 842 |  |  |
Income tax benefit | (689) | $ (714) | (1,381) | $ (1,428) |  |
Unrecognized tax benefits, period increase (decrease) |  |  | 773 |  |  |
Unrecognized tax benefits that would impact the effective tax rate | 35 |  | 35 |  |  | $ 44
Unrecognized tax benefits that would impact deferred tax rate | 807 |  | 807 |  |  | $ 25
JUUL [Member] |  |  |  |  |  |
Investments [Line Items] |  |  |  |  |  |
Income tax benefit | $ 760 |  |  |  |  |
Unrecognized tax benefits, period increase (decrease) |  |  | 782 |  |  |
Deferred federal income tax benefit |  |  | $ 22 |  |  |
Forecast [Member] | JUUL [Member] |  |  |  |  |  |
Investments [Line Items] |  |  |  |  |  |
Equity securities, FV-NI, ordinary gain (loss), tax basis of investments |  |  |  |  | $ 6,500 |
Unrecognized tax benefits |  |  |  |  | $ 1,600 |

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