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Statements of Consolidated Stockholders' Equity (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Common Stock, Dividends, Per Share, Declared | $ 0.88 | $ 0.84 | $ 0.80
Series A Preferred Stock |  |  |
Preferred Stock, Liquidation Preference, Value | $ 400 | $ 400 | $ 400
Series B Preferred Stock |  |  |
Preferred Stock, Liquidation Preference, Value | 500 | $ 500 | $ 500
Series C Preferred Stock |  |  |
Preferred Stock, Liquidation Preference, Value | $ 863 |  |

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