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Equity (Common) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Stock compensation awards |  |
Equity |  |
Stock issued (in shares) | 1,151,964 | 1,253,049
Proceeds received, net of offering costs | $ 58 | $ 57
In lieu of dividend payment |  |
Equity |  |
Stock issued (in shares) | 259,109 | 273,642
Proceeds received, net of offering costs | $ 18 | $ 18
401(K) |  |
Equity |  |
Stock issued (in shares) | 144,200 | 157,000
Proceeds received, net of offering costs | $ 10 | $ 10
Employee Stock Purchase Plan |  |
Equity |  |
Stock issued (in shares) | 55,923 | 36,912
Proceeds received, net of offering costs | $ 4 | $ 2
Voluntary Cash Purchase |  |
Equity |  |
Stock issued (in shares) | 105,218 | 109,750
Proceeds received, net of offering costs | $ 7 | $ 7
At-the-market Program (ATM) |  |
Equity |  |
Aggregate sale price | $ 500 |

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