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Investments in Equity Securities (Investment in Cronos Narrative) (Details) - Cronos [Member] $ / shares in Units, shares in Thousands, $ in Millions, $ in Billions |  | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 25, 2022 USD ($) | Jun. 30, 2022 USD ($) shares | Jun. 30, 2022 USD ($) shares | Jun. 30, 2022 CAD ($) | Jun. 30, 2022 $ / shares | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Investments [Line Items] |  |  |  |  |  |  |
Ownership percentage |  | 41.40% | 41.40% |  |  |  |
Number of ordinary shares owned (approximately) (in shares) | shares |  | 156,600 | 156,600 |  |  |  |
Fair value of equity investment |  | $ 437 | $ 437 |  |  |  | $ 617
Equity method investments |  | $ 437 | $ 437 |  |  |  |
Equity method investment, difference between carrying amount and fair value |  |  |  |  |  | $ 55 |
Equity method investment, difference between carrying amount and fair value, percentage (approximately) |  | 20.00% | 20.00% |  |  | 10.00% |
Impairment of JUUL equity securities |  | $ 107 | $ 107 |  |  |  |
Equity Contract, Preemptive Rights [Member] |  |  |  |  |  |  |
Investments [Line Items] |  |  |  |  |  |  |
Equity method investment, shares purchased, (CAD per share) | $ / shares |  |  |  |  | $ 16.25 |  |
Equity method investment, number of shares eligible for purchase (approximately) (in shares) | shares |  | 11,000 | 11,000 |  |  |  |
Equity method investment, aggregate exercise price |  |  |  | $ 0.2 |  |  |
Equity Contract, Preemptive Rights [Member] | Subsequent Event [Member] |  |  |  |  |  |  |
Investments [Line Items] |  |  |  |  |  |  |
Equity method investment, aggregate exercise price | $ 100 |  |  |  |  |  |
Equity Contract, Warrant [Member] |  |  |  |  |  |  |
Investments [Line Items] |  |  |  |  |  |  |
Equity method investment, shares purchased, (CAD per share) | $ / shares |  |  |  |  | $ 19.00 |  |
Equity method investment, number of shares eligible for purchase (approximately) (in shares) | shares |  | 84,000 | 84,000 |  |  |  |
Equity method investment, percentage of shares eligible for purchase (approximately) |  | 10.00% | 10.00% |  |  |  |
Equity method investment, aggregate exercise price |  |  |  | $ 1.6 |  |  |
Equity Contract, Warrant [Member] | Subsequent Event [Member] |  |  |  |  |  |  |
Investments [Line Items] |  |  |  |  |  |  |
Equity method investment, aggregate exercise price | $ 1,200 |  |  |  |  |  |
Equity Contract, Warrant And Equity Contract, Preemptive Rights [Member] |  |  |  |  |  |  |
Investments [Line Items] |  |  |  |  |  |  |
Equity method investment, warrant exercised, ownership percentage |  |  | 52.00% | 52.00% |  |  |
Common Stock [Member] |  |  |  |  |  |  |
Investments [Line Items] |  |  |  |  |  |  |
Equity method investments |  | $ 437 | $ 437 |  |  |  | $ 617

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