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Description of the Business and Basis of Presentation - Equity Method Investees (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Oct. 31, 2022 | Dec. 31, 2021
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Schedule of Equity Method Investments [Line Items] |  |  |  |
Investments As of | $ 1,762 | $ 2,200 |  | $ 1,691
NEXUS |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investments As of | $ 900 | $ 1,313 |  |
% Owned As of | 50.00% | 50.00% |  |
Vector |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investments As of | $ 135 | $ 135 |  |
% Owned As of | 40.00% | 40.00% |  |
Millennium |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investments As of | $ 727 | $ 752 |  |
% Owned As of | 52.50% | 52.50% | 52.50% |

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