Schedule of Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 574	$ 531
Accumulated Amortization	277	211
Net Carrying Amount	297	320
Goodwill	1,073	1,007	$ 973
Licensing Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	281	261
Accumulated Amortization	140	109
Net Carrying Amount	141	152
Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	242	224
Accumulated Amortization	119	90
Net Carrying Amount	123	134
Other Intangible Assets [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	51	46
Accumulated Amortization	18	12
Net Carrying Amount	33	34
Goodwill
Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	1,073	1,007
Trademarks
Finite And Indefinite Lived Intangible Assets [Line Items]
Trademarks	553	$ 550
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 2
Minimum [Member] | Licensing Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	0 years
Minimum [Member] | Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Minimum [Member] | Other Intangible Assets [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	4 years
Maximum | Licensing Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	40 years
Maximum | Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Maximum | Other Intangible Assets [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Weighted Average [Member] | Licensing Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	18 years
Weighted Average [Member] | Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	12 years
Weighted Average [Member] | Other Intangible Assets [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	9 years