Income Taxes - Components of Earnings Before Taxes and Income Taxes Paid (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
United States operations	$ 395.6	$ 400.7	$ 409.9
Foreign operations	548.3	580.4	580.2
Earnings before income taxes	943.9	981.1	990.1
Current:
Federal	177.6us-gaap_CurrentFederalTaxExpenseBenefit	199.0us-gaap_CurrentFederalTaxExpenseBenefit	179.8us-gaap_CurrentFederalTaxExpenseBenefit
State	16.3	20.6	13.8
Foreign	115.2us-gaap_CurrentForeignTaxExpenseBenefit	128.5us-gaap_CurrentForeignTaxExpenseBenefit	108.4us-gaap_CurrentForeignTaxExpenseBenefit
Current, Total	309.1us-gaap_CurrentIncomeTaxExpenseBenefit	348.1us-gaap_CurrentIncomeTaxExpenseBenefit	302.0us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred:
Federal	(56.9)	(87.7)	(58.8)
State	(6.6)	(8.5)	0.7
Foreign	(20.7)	(30.0)	(6.7)
Deferred, Total	(84.2)us-gaap_DeferredIncomeTaxExpenseBenefit	(126.2)us-gaap_DeferredIncomeTaxExpenseBenefit	(64.8)us-gaap_DeferredIncomeTaxExpenseBenefit
Provision for income taxes	224.9us-gaap_IncomeTaxExpenseBenefit	221.9us-gaap_IncomeTaxExpenseBenefit	237.2us-gaap_IncomeTaxExpenseBenefit
Income taxes paid	$ 340.1us-gaap_IncomeTaxesPaid	$ 272.3us-gaap_IncomeTaxesPaid	$ 227.6us-gaap_IncomeTaxesPaid

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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