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Stockholders' Equity - Common Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |  | 2 Months Ended | 12 Months Ended | 75 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 17, 2024 | Feb. 16, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Feb. 16, 2024 | Jan. 18, 2023 | Jul. 19, 2017 | Dec. 19, 2014
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Common share buy-back program, amount |  |  |  |  |  |  | $ 3,000 | $ 2,000 |
Total value of shares repurchased |  |  | $ 522 | $ 368 | $ 0 |  |  |  |
Average repurchase price per share |  |  | $ 16.56 | $ 16.94 | $ 0 |  |  |  |
Per share cash dividend declared for the period |  |  | 1.13 | 1.11 | 1.08 |  |  |  |
Per share cash dividend paid in the period |  |  | $ 1.1250 | $ 1.1025 | $ 1.0725 |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Total value of shares repurchased |  | $ 7 |  |  |  | $ 1,472 |  |  |
Average repurchase price per share |  | $ 16.50 |  |  |  | $ 17.09 |  |  |
Remaining repurchase authorization amount |  | $ 1,500 |  |  |  | $ 1,500 |  |  |
Per share cash dividend declared for the period | $ 0.2825 |  |  |  |  |  |  |  |
Equity distribution agreement | Class P |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Value of Stock Available for Sale Under Equity Distribution Agreement |  |  |  |  |  |  |  |  | $ 5,000
Share issued (in shares) |  |  | 0 | 0 | 0 |  |  |  |
Common stock |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Total value of shares repurchased |  |  |  | $ 1 |  |  |  |  |
Total number of shares repurchased |  |  | 32 | 21 | 0 |  |  |  |
Common stock | Subsequent Event |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Total number of shares repurchased |  | 1 |  |  |  | 86 |  |  |

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