Employment Benefit Plans Change in Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Net pension assets included in other current liabilities	$ 12	$ 11
Net pension assets included in other assets	1,519	944
Pension Benefits
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of period	2,611	2,355
Actual return (loss) on plan assets	585	384
Employer contributions	11	11
Benefits paid	(138)	(137)
Settlements	(1)	(2)
Fair value of plan assets at measurement date	3,068	2,611
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Funded status (plan assets less projected benefit obligations)	$ 1,452	$ 872