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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Investments [Line Items] |  |  |  |
Unrecognized tax benefits | $ 460 |  |  |
Income tax benefit | (692) | $ (714) |  |
Unrecognized tax benefits, period increase (decrease) | 391 |  |  |
Unrecognized tax benefits that would impact the effective tax rate | 44 |  |  | $ 44
Unrecognized tax benefits that would impact deferred tax rate | 416 |  |  | $ 25
JUUL [Member] |  |  |  |
Investments [Line Items] |  |  |  |
Income tax benefit | 380 |  |  |
Unrecognized tax benefits, period increase (decrease) | 391 |  |  |
Deferred federal income tax benefit | $ 11 |  |  |
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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