Employee Benefit Plans - Summary of Changes in Benefit Obligation, Plan Assets and Funded Status of Pension Benefit Plans (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
United States
Change in plan assets:
Fair value of plan assets at beginning of year	$ 401
Fair value of plan assets at end of year	455	$ 401
Non-United States Plans
Change in plan assets:
Fair value of plan assets at beginning of year	418
Fair value of plan assets at end of year	475	418
Pension Benefits | United States
Change in benefit obligation:
Projected benefit obligation at beginning of year	401	335
Service costs	13	12	$ 13
Interest cost	12	14	12
Actuarial losses	65	50
Business combinations	0	0
Benefits paid	(10)	(10)
Contributions	0	0
Amendments	0	0
Curtailments	0	0
Settlements	0	0
Foreign currency fluctuations and other	0	0
Projected benefit obligation at end of year	481	401	335
Change in plan assets:
Fair value of plan assets at beginning of year	401	330
Actual return on plan assets	61	77
Contributions	3	4
Benefits paid	(10)	(10)
Settlements	0	0
Foreign currency fluctuations and other	0	0
Fair value of plan assets at end of year	455	401	330
Funded status	(26)	0
Pension Benefits | Non-United States Plans
Change in benefit obligation:
Projected benefit obligation at beginning of year	591	513
Service costs	29	25	26
Interest cost	8	9	9
Actuarial losses	60	55
Business combinations	0	0
Benefits paid	(18)	(19)
Contributions	2	2
Amendments	(1)	0
Curtailments	0	(5)
Settlements	(7)	(1)
Foreign currency fluctuations and other	29	12
Projected benefit obligation at end of year	693	591	513
Change in plan assets:
Fair value of plan assets at beginning of year	418	366
Actual return on plan assets	38	34
Contributions	27	26
Benefits paid	(18)	(19)
Settlements	(7)	(1)
Foreign currency fluctuations and other	17	12
Fair value of plan assets at end of year	475	418	$ 366
Funded status	$ (218)	$ (173)