Employee Benefit Plans - Benefit Obligation and Plan Assets (Details) - Pension Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Change in benefit obligation:
Benefit obligation at beginning of year	$ 3,550	$ 3,806
Service cost	23	27	$ 27
Interest cost	78	64	77
Actuarial gain	(928)	(154)
Benefits paid	(119)	(111)
Settlements	(24)	(33)
Acquisition	202	0
Other	0	(7)
Foreign currency translation adjustments	(148)	(42)
Benefit obligation at end of year	2,634	3,550	3,806
Change in plan assets:
Fair value of plan assets at beginning of year	3,147	3,202
Actual return on plan assets	(850)	83
Employer contributions	32	28
Benefits paid	(119)	(111)
Settlements	(24)	(33)
Acquisition	214	0
Foreign currency translation adjustments	(134)	(22)
Fair value of plan assets at end of year	2,266	3,147	$ 3,202
Funded status - underfunded at end of year	(368)	(403)
Accumulated benefit obligation	$ 2,595	$ 3,497