Income Statement Impacts Related to Derivatives Not Designated as Hedging Instruments (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Interest Expense	$ 72.4	$ 69.0	$ 146.8	$ 132.2
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts | Other Income And Expense [Member]
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax	(3.6)	(2.2)	(1.3)	14.9
Fair Value Hedging [Member]
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Derivative, Loss on Derivative	$ (0.7)	$ (0.8)	$ (6.1)	$ (1.6)