Employee Benefits - Amounts Recognized in Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ 14	$ 19
Prior service cost (credit)	(15)	(21)
Total AOCI (before tax effects)	(1)	(2)
U.S Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	137	134
Prior service cost (credit)	0	0
Total AOCI (before tax effects)	137	134
Non-U.S. Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	291	454
Prior service cost (credit)	(3)	(2)
Total AOCI (before tax effects)	$ 288	$ 452