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Equity (Stock-Based Compensation) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Stock-based compensation |  |  |
Stock based compensation costs | $ 142 | $ 119 | $ 107
Tax benefits related to stock-based compensation arrangements | 20 | $ 19 | $ 21
Unrecognized stock based compensation costs | $ 160 |  |
Unrecognized stock based compensation costs weighted-average period of recognition (in years) | 2 years 6 months |  |
Common stock authorized for awards (in shares) | 81,000,000 |  |
Share-based Payment Arrangement [Member] |  |  |
Stock-based compensation |  |  |
Number of additional shares available for grant (in shares) | 0 |  |

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