Restructuring and Other Charges - Additional Information (Detail) € in Millions, $ in Millions	1 Months Ended	12 Months Ended
Jan. 31, 2018 USD ($)	Jan. 31, 2018 EUR (€)	Dec. 31, 2018 USD ($)
Restructuring And Related Activities [Abstract]
Amount of cash payments expected to be paid beyond the end of the current annual period			$ 9
Litigation settlement	$ 18	€ 15	$ 8

The quantified amount of the future effect on cash flows.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4)
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

Name:	us-gaap_EffectOnFutureCashFlowsAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration