Income Taxes (Schedule of Unrecognized Tax Benefits Roll Forward) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Activity Related To Uncertain Tax Positions [Roll Forward]
As of the beginning of the year		$ 224	$ 275	$ 218
Increases (decreases) in tax positions for the current year			10	8
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions		(3)
Increases in tax positions for prior years		6	9	102
Decreases in tax positions for prior years		(6)	(35)	(45)
Increases (decreases) due to settlements		(8)	(35)	(8)
As of the end of the year		213	224	275
Total uncertain tax positions that if recognized would impact the effective tax rate		236	244	274
Total amount of interest expense (benefit) and penalties recognized in the consolidated statements of operations(1)	[1]	7	22	10
Total amount of interest expense and penalties recognized in the consolidated balance sheets		$ 77	$ 71	$ 59

[1] This amount reflects interest on uncertain tax positions and release of tax positions due to changes in assessment, statute lapses or audit closures that were reflected in the consolidated statements of operations.