Employee Benefit Plans and Postretirement Benefits - Defined Benefit Pension Plans by Geographical Area (Details) - USD ($) $ in Millions		12 Months Ended
	Apr. 16, 2018	Dec. 31, 2022	Dec. 31, 2021
Change in benefit obligations:
Plan amendments	$ 527
Change in the fair value of plan assets:
Beginning plan assets		$ 1,604
Ending plan assets		1,037	$ 1,604
U.S.
Change in benefit obligations:
Beginning benefit obligation		174	177
Service cost		3	3
Interest cost		5	4
Plan participants’ contributions		0	0
Actuarial loss (gain)		(51)	(15)
Gross benefits paid		(3)	5
Plan amendments		0	0
Currency translation adjustments and other		0	0
Ending benefit obligation		128	174
Change in the fair value of plan assets:
Beginning plan assets		205	204
Actual return on plan assets		(43)	(4)
Employer contributions		0	0
Plan participants’ contributions		0	0
Gross benefits paid		(3)	5
Currency translation adjustments and other		0	0
Ending plan assets		159	205
Funded status:		31	31
U.K
Change in benefit obligations:
Beginning benefit obligation		1,288	1,353
Service cost		0	0
Interest cost		20	14
Plan participants’ contributions		0	0
Actuarial loss (gain)		(360)	(11)
Gross benefits paid		(48)	(51)
Plan amendments		0	0
Currency translation adjustments and other		(130)	(17)
Ending benefit obligation		770	1,288
Change in the fair value of plan assets:
Beginning plan assets		1,057	1,029
Actual return on plan assets		(292)	57
Employer contributions		39	35
Plan participants’ contributions		0	0
Gross benefits paid		(48)	(51)
Currency translation adjustments and other		(106)	(13)
Ending plan assets		650	1,057
Funded status:		(120)	(231)
Germany
Change in benefit obligations:
Beginning benefit obligation		157	196
Service cost		0	0
Interest cost		1	0
Plan participants’ contributions		0	0
Actuarial loss (gain)		(29)	(12)
Gross benefits paid		(11)	(14)
Plan amendments		0	0
Currency translation adjustments and other		(10)	(13)
Ending benefit obligation		108	157
Change in the fair value of plan assets:
Beginning plan assets		4	5
Actual return on plan assets		0	0
Employer contributions		0	0
Plan participants’ contributions		0	0
Gross benefits paid		0	0
Currency translation adjustments and other		0	(1)
Ending plan assets		4	4
Funded status:		(104)	(153)
Other
Change in benefit obligations:
Beginning benefit obligation		224	258
Service cost		8	10
Interest cost		1	1
Plan participants’ contributions		1	1
Actuarial loss (gain)		(36)	(18)
Gross benefits paid		(15)	(15)
Plan amendments		0	0
Currency translation adjustments and other		(14)	(13)
Ending benefit obligation		169	224
Change in the fair value of plan assets:
Beginning plan assets		208	213
Actual return on plan assets		(22)	12
Employer contributions		7	8
Plan participants’ contributions		1	1
Gross benefits paid		(14)	(15)
Currency translation adjustments and other		(14)	(11)
Ending plan assets		166	208
Funded status:		$ (3)	$ (16)