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Equity (Common Stock - Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Equity [Abstract] |  |  |  |  |  |
Treasury Stock, Shares, Acquired |  |  |  |  | 28,872,993 | 23,665,630
Treasury Stock, Value, Acquired, Cost Method, Net Of Excise Tax |  |  |  |  | $ 2,000 | $ 1,500
Treasury Stock, Value, Acquired, Cost Method | $ 863 | $ 1,183 | $ 678 | $ 787 |  |

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