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Investments in Equity Securities (Earnings in Equity Securities) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Schedule of Equity Method Investments [Line Items] |  |
(Income) losses from investments under equity method of accounting | $ (170) | $ (134)
(Income) losses from investments in equity securities | 80 | (34)
ABI [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
(Income) losses from investments under equity method of accounting | (205) | (200)
Cronos [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
(Income) losses from investments under equity method of accounting | 35 | 66
JUUL [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Loss on disposition of JUUL equity securities | $ 250 | $ 100

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