Income Taxes, Change in Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unrecognized Tax Benefits [Roll Forward]
Balance as of beginning of year	$ 186	$ 284	$ 816
Additions for tax positions related to the current year	52	18	27
Additions for tax positions related to prior years	106	4	19
Reductions for tax positions related to prior years	(19)	(73)	(573)
Reductions for tax positions related to the lapse of applicable statute of limitations	(7)	(9)	(5)
Settlements	(2)	(38)	0
Balance as of end of year	316	186	$ 284
Unrecognized Tax Benefits (Textual)
Unrecognized tax benefits if recognized that would reduce the effective tax rate	$ 236	$ 126