Financial Instruments and Fair Value Measurements - Summary of Undesignated Foreign Currency Forwards Activity (Detail) - Undesignated Derivatives [Member]	6 Months Ended
	Jun. 30, 2018 USD ($) Derivative	Jun. 30, 2017 USD ($) Derivative
CAD
Derivative [Line Items]
Notional amounts at January 1	$ 56,000,000	$ 38,000,000
New contracts	13,000,000	0
Matured, expired or settled contracts	(14,000,000)	(12,000,000)
Notional amounts at June 30	$ 55,000,000	$ 26,000,000
Weighted average forward rate at June 30	1.28	1.32
Active contracts at June 30 | Derivative	24	12
China, Yuan Renminbi
Derivative [Line Items]
Notional amounts at January 1	$ 0
New contracts	80,000,000
Matured, expired or settled contracts	(80,000,000)
Notional amounts at June 30	$ 0
Weighted average forward rate at June 30	0
Active contracts at June 30 | Derivative	0
EUR
Derivative [Line Items]
Notional amounts at January 1	$ 233,000,000	$ 197,000,000
New contracts	54,000,000	63,000,000
Matured, expired or settled contracts	(55,000,000)	(56,000,000)
Notional amounts at June 30	$ 232,000,000	$ 204,000,000
Weighted average forward rate at June 30	1.20	1.13
Active contracts at June 30 | Derivative	29	26
GBP
Derivative [Line Items]
Notional amounts at January 1	$ 132,000,000	$ 78,000,000
New contracts	0	137,000,000
Matured, expired or settled contracts	(36,000,000)	(46,000,000)
Notional amounts at June 30	$ 96,000,000	$ 169,000,000
Weighted average forward rate at June 30	1.30	1.33
Active contracts at June 30 | Derivative	16	22
Mexico, Pesos
Derivative [Line Items]
Notional amounts at January 1	$ 0
New contracts	10,000,000
Matured, expired or settled contracts	(10,000,000)
Notional amounts at June 30	$ 0
Weighted average forward rate at June 30	0
Active contracts at June 30 | Derivative	0
JPY
Derivative [Line Items]
Notional amounts at January 1	$ 153,000,000	$ 144,000,000
New contracts	28,000,000	38,000,000
Matured, expired or settled contracts	(36,000,000)	(31,000,000)
Notional amounts at June 30	$ 145,000,000	$ 151,000,000
Weighted average forward rate at June 30	105.53	106.51
Active contracts at June 30 | Derivative	32	32