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Investments in Equity Securities (Earnings in Equity Securities) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Schedule of Equity Method Investments [Line Items] |  |  |  |
(Income) losses from investments under equity method of accounting | $ 2,378 | $ 6,015 | $ 2,352 | $ 5,789
(Income) losses from investments in equity securities | 2,478 | 5,915 | 3,707 | 5,789
ABI [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
(Income) losses from investments under equity method of accounting | 2,367 | 6,036 | 2,155 | 5,644
Cronos [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
(Income) losses from investments under equity method of accounting | 11 | (21) | 197 | 145
JUUL [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
(Income) losses from investments in equity securities | $ 100 | $ (100) | $ 1,355 | $ 0

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