Derivative Instruments and Hedging Activities - Effects of Fair Value and Cash flow Hedge Accounting on Condensed Consolidated Statements of Earnings (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Gain on net investment hedging relationships	$ 120.4	$ (146.0)	$ 18.8
Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on cash flow hedging relationships	(26.8)	4.6	19.6
Foreign Exchange Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain on net investment hedging relationships			9.4
Cross-currency Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain on net investment hedging relationships	62.8
Cost of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total amounts of income and expense line items presented in the statements of earnings in which the effects of fair value, cash flow and net investment hedges are recorded	2,271.9	2,132.9	2,381.8
Cost of Goods Sold [Member] | Foreign Exchange Forward Contracts [Member] | Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on cash flow hedging relationships	(26.2)	5.1	87.7
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total amounts of income and expense line items presented in the statements of earnings in which the effects of fair value, cash flow and net investment hedges are recorded	(289.3)	(325.3)	(355.0)
Interest Expense [Member] | Discontinued Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain on fair value hedging relationships	8.5	8.3	10.7
Interest Expense [Member] | Forward Starting Interest Rate Swaps [Member] | Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on cash flow hedging relationships	(0.6)	$ (0.5)	(1.7)
Interest Expense [Member] | Cross-currency Interest Rate Swaps [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain on net investment hedging relationships	$ 25.5
Other Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total amounts of income and expense line items presented in the statements of earnings in which the effects of fair value, cash flow and net investment hedges are recorded			(66.5)
Other Expense [Member] | Forward Starting Interest Rate Swaps [Member] | Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on cash flow hedging relationships			$ (66.4)