Derivative Instruments and Hedging Activities - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Unamortized balance of hedged instruments which will be recognized under effective interest rate method	$ 23,100,000
Loss on settlement of forward starting interest rate swaps			$ 97,600,000
Forward starting interest rate swap cash flow hedge to be amortized	$ 27,700,000
Percentage of debt designated as net investment hedges	100.00%
Amount of gain (loss) recognized in OCI	$ (146,000,000)	$ 18,800,000
Amount of ineffectiveness on net investment hedges	$ 0	0
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
Fair value of outstanding derivative instruments, net unrealized loss deferred in accumulated other comprehensive income	(84,400,000)
Gains/(losses) on derivatives	45,500,000	$ (15,500,000)	$ (42,200,000)
Cost of Products Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of outstanding derivative instruments, loss, expected to be reclassified to earnings	37,200,000
Fair value of outstanding derivative instruments, loss, net of taxes expected to be reclassified to earnings	31,500,000
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of outstanding derivative instruments, loss, expected to be reclassified to earnings	(600,000)
Fair value of outstanding derivative instruments, loss, net of taxes expected to be reclassified to earnings	(400,000)
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	(66,500,000)
Foreign Exchange Contract [Member] | U.S. Dollars [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total	1,735,900,000
Foreign Exchange Contract [Member] | Swiss Francs [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total	291,300,000
Weighted Average [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fixed rate on interest rate swaps				0.82%
Maximum [Member] | Foreign Exchange Contract [Member] | Nondesignated [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total	2,000,000,000
Minimum [Member] | Foreign Exchange Contract [Member] | Nondesignated [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total	$ 1,500,000,000
U.S. Term Loan B [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount, Total				$ 375,000,000
4.450% [Member] | Senior Notes [Member] | Due in 2045 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Hedged senior notes maturity period	30 years
Interest rate	4.45%	4.45%
Loss on interest rate swaps as part of debt extinguishment loss	$ 66,400,000