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Share Repurchase Program (Narrative) (Details) - USD ($) $ 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	Sep. 07, 2021
Share Repurchase Program [Abstract]
Repurchase authorized amount						$ 400
Repurchase authorized period			3 years
Number of shares purchased	1,100,000	800,000	1,100,000	1,900,000	5,552,053
Cost of share purchased	$ 34	$ 19	$ 34	$ 59	$ 195
Remaining available for future repurchases under program	$ 205		$ 205		$ 205

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Amount of stock repurchase plan authorized.

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Period which shares may be purchased under a stock repurchase plan authorized by an entity's Board of Directors, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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