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Equity (Common Stock Repurchase Program - Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Class of Stock [Line Items]
Stock repurchase program, aggregate amount repurchased	$ 62	$ 127
Authorization Under 10b5-1 Plan
Class of Stock [Line Items]
Stock repurchase program, shares repurchased	1,200,124	2,398,636
Stock repurchase program, aggregate amount repurchased	$ 62	$ 127
Stock repurchase program, remaining authorized repurchase amount	$ 231

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