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Equity And Earnings Per Share (Basic Table) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Basic earnings per share: |  |
Net income available for common stockholders | $ 107 | $ 46
Weighted average shares of common stock outstanding: |  |
Weighted Average Number of Shares Outstanding, Basic | 90,789,321 | 76,751,168
Basic earnings per share | $ 1.18 | $ 0.60
Common Class A [Member] |  |
Weighted average shares of common stock outstanding: |  |
Weighted Average Number of Shares Outstanding, Basic | 90,789,221 | 76,751,068
Common Class B [Member] |  |
Weighted average shares of common stock outstanding: |  |
Weighted Average Number of Shares Outstanding, Basic | 100 | 100

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