Employee Benefits - Pension and Other Defined Contribution Retirement Plan Expenses (Detail) - Pension Plans - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Interest cost on projected benefit obligation	$ 3	$ 4
Expected return on plan assets	(5)	(7)
Net amortization and deferrals	2	2
Net periodic benefit (income) cost	0	(1)
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned	10	6
Interest cost on projected benefit obligation	2	3
Expected return on plan assets	(12)	(12)
Net amortization and deferrals	5	4
Net periodic benefit (income) cost	$ 5	$ 1