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Investments in Equity Securities (Investment in JUUL Narrative) (Details) shares in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2018 USD ($) | Jun. 30, 2022 USD ($) director shares | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) director shares | Jun. 30, 2021 USD ($) | Apr. 30, 2020 | Jan. 31, 2020
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Equity securities without readily determinable fair value, number of oversight committee chair directors designated by investor upon share conversion |  | 1 |  | 1 |  |  |
JUUL [Member] |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Payments to acquire equity securities without readily determinable fair value | $ | $ 12,800 |  |  |  |  |  |
Equity securities, ownership percentage | 35.00% | 35.00% |  | 35.00% |  | 35.00% |
Equity investments, fair value option, voting shares (in shares) | shares |  | 42 |  | 42 |  |  |
Equity securities without readily determinable fair value, service agreement term |  |  |  | 6 years |  |  |
Equity securities without readily determinable fair value, non-compete release trigger percentage of investment carrying value |  |  |  |  |  |  | 10.00%
Equity securities without readily determinable fair value, quantitative assessment adjustment, annual amount | $ | $ 12,800 |  |  |  |  |  |
Equity securities without readily determinable fair value, amount | $ |  | $ 450 |  | $ 450 |  |  |
Equity securities without readily determinable fair value, number of board members |  | 7 |  | 7 |  |  |
Equity securities without readily determinable fair value, number of board members upon share conversion |  | 9 |  | 9 |  |  |
Equity securities without readily determinable fair value, number of independent board members upon share conversion |  | 3 |  | 3 |  |  |
Equity securities without readily determinable fair value, number of board members appointed by investor upon share conversion |  |  |  | 1 |  |  |
Equity securities without readily determinable fair value, number of board members appointed by investee stockholders upon share conversion |  | 2 |  | 2 |  |  |
Equity securities without readily determinable fair value, number of investor nominating committee designees upon share conversion |  | 1 |  | 1 |  |  |
Equity securities without readily determinable fair value, number of directors designated by investor upon share conversion |  | 2 |  | 2 |  |  |
Equity securities without readily determinable fair value, number of nominating committee directors designated by investee upon share conversion |  | 3 |  | 3 |  |  |
Equity securities without readily determinable fair value, number of oversight committee directors designated by investor upon share conversion |  | 2 |  | 2 |  |  |
Income (loss) from equity investments, fair value option | $ |  | $ (1,155) | $ 100 | $ (1,255) | $ (100) |  |

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