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Equity And Earnings Per Share (Diluted Table) (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Diluted earnings per share:        
Net income available for common stockholders $ 99 $ 42 $ 244 $ 241
Weighted Average Shares Outstanding [Abstract]        
Weighted Average Number of Shares Outstanding, Basic 101,818,667 96,229,958 99,646,091 92,814,767
Potentially dilutive common shares:        
Issuable pursuant to employee incentive plans 736,815 760,010 858,984 856,922
Weighted Average Number of Shares Outstanding, Diluted 102,555,482 96,989,968 100,505,075 93,671,689
Earnings Per Share, Diluted $ 0.97 $ 0.43 $ 2.43 $ 2.58
Common Class A [Member]        
Weighted Average Shares Outstanding [Abstract]        
Weighted Average Number of Shares Outstanding, Basic 101,818,567 96,229,858 99,645,991 92,814,667
Common Class B [Member]        
Weighted Average Shares Outstanding [Abstract]        
Weighted Average Number of Shares Outstanding, Basic 100 100 100 100