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Share Repurchase Program (Purchase of Outstanding Shares) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended		22 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023
Share Repurchase Program [Abstract]
Number of shares purchased	1,100,000	800,000	1,100,000	1,900,000	5,552,053
Average price paid per share	$ 31.43	$ 22.16	$ 31.43	$ 30.51
Cost of share purchased	$ 34	$ 19	$ 34	$ 59	$ 195

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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