Derivative Instruments and Hedging Activities - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Expected months of hedging of inter company sales of inventory to minimize the effects of foreign exchange rate movements			30 months
Minimum notional amounts of foreign currency forward exchange contracts			$ 1,200,000,000
Maximum notional amounts of foreign currency forward exchange contracts			1,700,000,000
Amounts excluded from the assessment of hedge effectiveness	0	0	0	0
Fair value of outstanding derivative instruments, net unrealized gain deferred in other comprehensive income	88,000,000		88,000,000
Fair value of outstanding derivative instruments, net unrealized gain expected to be reclassified to earnings	53,300,000		53,300,000
Fair value of outstanding derivative instruments, unrealized gain net of taxes expected to be reclassified to earnings	37,000,000		37,000,000
Cash flow hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of outstanding derivative instruments, unrealized gain net of taxes deferred in other comprehensive income	61,900,000		61,900,000
Foreign Exchange Contract [Member] | U.S. Dollars [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total	1,462,400,000		1,462,400,000
Foreign Exchange Contract [Member] | Swiss Francs [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total	330,100,000		330,100,000
Senior Notes due 2019 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total	250,000,000		250,000,000
Interest rate of Senior Notes	4.625%		4.625%
Description of terms of Interest rate Derivatives terms			Receive a fixed interest rate of 4.625 percent and pay variable interest equal to the three-month LIBOR plus an average of 133 basis points.
Description of variable interest rate basis			Three-month LIBOR
Senior Notes due 2019 [Member] | LIBOR [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swap basis spread on variable rate	1.33%		1.33%
Senior Notes due 2021 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total	$ 300,000,000		$ 300,000,000
Interest rate of Senior Notes	3.375%		3.375%
Description of terms of Interest rate Derivatives terms			We receive a fixed interest rate of 3.375 percent and pay variable interest equal to the three-month LIBOR plus an average of 99 basis points.
Description of variable interest rate basis			Three-month LIBOR
Senior Notes due 2021 [Member] | LIBOR [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swap basis spread on variable rate	0.99%		0.99%