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Equity And Earnings Per Share (Diluted Table) (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Diluted earnings per share: |  |  |
Net income available for common stockholders | $ 380 | $ 308 | $ 195
Weighted Average Shares Outstanding [Abstract] |  |  |
Weighted Average Number of Shares Outstanding, Basic | 100,460,016 | 94,167,572 | 79,939,289
Potentially dilutive common shares: |  |  |
Issuable pursuant to employee incentive plans | 839,593 | 842,308 | 699,619
Weighted Average Number of Shares Outstanding, Diluted | 101,299,609 | 95,009,880 | 80,638,908
Earnings Per Share, Diluted | $ 3.75 | $ 3.24 | $ 2.42
Common Class A [Member] |  |  |
Weighted Average Shares Outstanding [Abstract] |  |  |
Weighted Average Number of Shares Outstanding, Basic | 100,459,916 | 94,167,472 | 79,939,189
Common Class B [Member] |  |  |
Weighted Average Shares Outstanding [Abstract] |  |  |
Weighted Average Number of Shares Outstanding, Basic | 100 | 100 | 100

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