Employee Benefit Plans - Pre-tax Net Changes in Projected Benefit Obligations Recognized in Other Comprehensive Income (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Total recognized in other comprehensive income (loss)	$ (2)	$ (15)	$ (37)
Pension
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss arising during the year	(9)	7
Amortization of loss included in net periodic benefit cost	(3)	(2)
Recognition of gain (loss) due to curtailment	2	(5)
Recognition of loss due to settlement	0	(2)
Foreign currency exchange	(2)	3
Total recognized in other comprehensive income (loss)	(12)	1
Postemployment
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss arising during the year	10	15
Amortization of loss included in net periodic benefit cost	(8)	(7)
Recognition of gain (loss) due to curtailment	0	0
Recognition of loss due to settlement	0	0
Foreign currency exchange	0	0
Total recognized in other comprehensive income (loss)	$ 2	$ 8

Other Comprehensive Income (Loss), Defined Benefit Plan, Curtailment Gain (Loss), before Tax

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Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Gain (Loss), before Tax

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Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive (income) loss for defined benefit plan, attributable to parent entity.

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Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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