Derivative Instruments and Hedging Activities - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2015	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total	$ 1,000,000,000
Loss on settlement of forward starting interest rate swaps	$ 97,600,000
Expected months of hedging of inter company sales of inventory to minimize the effects of foreign exchange rate movements				30 months
Amounts excluded from the assessment of hedge effectiveness		$ 0	$ 0	$ 0	$ 0
Fair value of outstanding derivative instruments, net unrealized loss deferred in accumulated other comprehensive income		96,300,000		96,300,000
Fair value of outstanding derivative instruments, gain, expected to be reclassified to earnings		24,300,000		24,300,000
Fair value of outstanding derivative instruments, gain, net of taxes expected to be reclassified to earnings		$ 20,500,000		$ 20,500,000
4.450% Senior Notes due 2045 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate of Senior Notes		4.45%		4.45%
Hedged senior notes maturity period				30 years
4.625% 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
3.375% 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
LIBOR [Member] | 4.625% Senior Notes due 2019 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swap basis spread on variable rate		1.33%		1.33%
LIBOR [Member] | 3.375% Senior Notes due 2021 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swap basis spread on variable rate		0.99%		0.99%
Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of outstanding derivative instruments, unrealized loss net of taxes deferred in accumulated other comprehensive income		$ 57,600,000		$ 57,600,000
U.S. Dollars [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total		1,575,900,000		1,575,900,000
Swiss Francs [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total		297,400,000		297,400,000
Minimum [Member] | Nondesignated [Member] | Foreign Exchange Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total		1,500,000,000		1,500,000,000
Maximum [Member] | Nondesignated [Member] | Foreign Exchange Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total		$ 2,000,000,000		$ 2,000,000,000