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Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jul. 31, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Aug. 31, 2024
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Dividends rate per share |  | $ 0.35 | $ 0.44 | $ 0.72 | $ 0.89 |  |  |
Fixed Dividend [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Dividends rate per share |  |  |  |  |  | $ 0.22 | $ 0.2 |
Subsequent Event |  |  |  |  |  |  |  |
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Dividend payable, per share |  |  |  |  |  |  |  | $ 0.44
Dividend payable amount |  |  |  |  |  |  |  | $ 276
Dividends payable, year |  |  |  |  |  |  |  | 2024
Subsequent Event | Fixed Dividend [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Dividend payable, per share |  |  |  |  |  |  |  | $ 0.22
Subsequent Event | Variable Dividend [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Dividend payable, per share |  |  |  |  |  |  |  | $ 0.22
Share Repurchase Program [Member] | Subsequent Event | Maximum [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Repurchase of common stock | $ 5,000 |  |  |  |  |  |  |
Share Repurchase Program [Member] | Subsequent Event | Minimum [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Repurchase of common stock | $ 3,000 |  |  |  |  |  |  |
Five Billion Dollar Share Repurchase Program Open [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Repurchase of common stock |  | $ 5,000 |  |  |  | $ 5,000 |  |
Five Billion Dollar Share Repurchase Program Open [Member] | Subsequent Event | Maximum [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Repurchase program expiration date | Jun. 30, 2026 |  |  |  |  |  |  |
Five Billion Dollar Share Repurchase Program Open [Member] | Subsequent Event | Minimum [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Abstract] |  |  |  |  |  |  |  |
Repurchase program expiration date | Dec. 31, 2024 |  |  |  |  |  |  |

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