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Equity And Earnings Per Share (Diluted Table) (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Diluted earnings per share:        
Net income available for common stockholders $ 179 $ 125 $ 354 $ 273
Weighted Average Shares Outstanding [Abstract]        
Weighted Average Number of Shares Outstanding, Basic 107,719,020 103,587,557 107,394,925 103,274,846
Potentially dilutive common shares:        
Issuable pursuant to employee incentive plans 907,816 876,172 993,213 980,042
Weighted Average Number of Shares Outstanding, Diluted 108,626,836 104,463,729 108,388,138 104,254,888
Earnings Per Share, Diluted $ 1.65 $ 1.20 $ 3.27 $ 2.62
Common Class A [Member]        
Weighted Average Shares Outstanding [Abstract]        
Weighted Average Number of Shares Outstanding, Basic 107,718,920 103,587,457 107,394,825 103,274,746
Common Class B [Member]        
Weighted Average Shares Outstanding [Abstract]        
Weighted Average Number of Shares Outstanding, Basic 100 100 100 100