Equity (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Equity, Class of Treasury Stock [Line Items]
Noncontrolling interest	$ 90	$ 90	$ 90	$ 90
Net Income (Loss) Attributable to Noncontrolling Interest	2	$ 1
Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount	$ 500
Common Stock Held In Treasury [Member]
Equity, Class of Treasury Stock [Line Items]
Treasury Stock, Shares, Acquired	0	371,343