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Equity And Earnings Per Share (Diluted Table) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Diluted earnings per share:
Net income available for common stockholders	$ 148	$ 73
Weighted Average Shares Outstanding [Abstract]
Weighted Average Number of Shares Outstanding, Basic	102,958,660	98,226,147
Potentially dilutive common shares:
Issuable pursuant to employee incentive plans	1,083,911	998,629
Weighted Average Number of Shares Outstanding, Diluted	104,042,571	99,224,776
Earnings Per Share, Diluted	$ 1.42	$ 0.74
Common Class A [Member]
Weighted Average Shares Outstanding [Abstract]
Weighted Average Number of Shares Outstanding, Basic	102,958,560	98,226,047
Common Class B [Member]
Weighted Average Shares Outstanding [Abstract]
Weighted Average Number of Shares Outstanding, Basic	100	100

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