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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, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Diluted earnings per share:        
Net income available for common stockholders $ 167 $ 99 $ 440 $ 244
Weighted Average Shares Outstanding [Abstract]        
Weighted Average Number of Shares Outstanding, Basic 106,233,557 101,818,667 104,271,921 99,646,091
Potentially dilutive common shares:        
Issuable pursuant to employee incentive plans 777,870 736,815 912,651 858,984
Weighted Average Number of Shares Outstanding, Diluted 107,011,427 102,555,482 105,184,572 100,505,075
Earnings Per Share, Diluted $ 1.56 $ 0.97 $ 4.19 $ 2.43
Common Class A [Member]        
Weighted Average Shares Outstanding [Abstract]        
Weighted Average Number of Shares Outstanding, Basic 106,233,457 101,818,567 104,271,821 99,645,991
Common Class B [Member]        
Weighted Average Shares Outstanding [Abstract]        
Weighted Average Number of Shares Outstanding, Basic 100 100 100 100