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Share Repurchase Program (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Sep. 07, 2021
Share Repurchase Program [Abstract]
Repurchase authorized amount			$ 400
Repurchase authorized period	3 years
Number of shares purchased	4,478,194	1,100,000
Cost of share purchased	$ 162	$ 40
Remaining available for future repurchases under program	$ 238

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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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