Other (Income) Expense, Net - Summary of Other (Income) Expense, Net (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Other Income and Expenses [Abstract]
Other expense	$ 34.4	$ 15.5	$ 47.2	$ 34.7
Other income	(56.2)	(1.3)	(59.5)	(35.5)
Other (income) expense, net	$ (21.8)	$ 14.2	$ (12.3)	$ (0.8)