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Investments in Equity Securities (Earnings in Equity Securities) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Schedule of Equity Method Investments [Line Items] |  |  |  |
(Income) losses from investments under equity method of accounting | $ (119) | $ (127) | $ (414) | $ (297)
(Income) losses from investments in equity securities | (119) | (127) | (414) | (47)
ABI [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
(Income) losses from investments under equity method of accounting | (121) | (135) | (434) | (340)
Gain on partial sale of our investment |  |  | 165 |
Cronos [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
(Income) losses from investments under equity method of accounting | 2 | 8 | 20 | 43
JUUL [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Loss on disposition of JUUL equity securities | $ 0 | $ 0 | $ 0 | $ 250

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