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Subsequent Events (Narrative) (Details) - USD ($) $ / shares in Units, $ in Billions |  | 12 Months Ended |
--- | --- | --- | ---
Feb. 06, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Feb. 07, 2023
Subsequent Event [Line Items] |  |  |  |  |
Dividends declared per share of Common Stock (in dollars per share) |  | $ 5.00 | $ 4.80 | $ 4.60 |
Under February 2023 Board Of Directors Authorization |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 1.0
Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Dividends declared per share of Common Stock (in dollars per share) | $ 1.30 |  |  |  |

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