Accumulated Other Comprehensive Loss - Schedule of Income Tax (Provision) Benefit Allocated to Components of OCI (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Equity [Abstract]
Foreign currency translation adjustments	$ 12	$ 0	$ 11	$ 0
Unrecognized pension and postretirement costs	(1)	3	(3)	11
Derivative financial instruments	2	(1)	(5)	1
Income tax benefit related to AOCL	$ 13	$ 2	$ 3	$ 12

No definition available.

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- Definition

Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e640-108580

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Amount of tax expense (benefit), 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.

+ References

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- Definition

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.

+ References

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-Section 45
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- Definition

Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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-Publisher FASB
-Name Accounting Standards Codification
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