Benefit Plans - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 28, 2015
U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2.8	$ 3.5
Interest cost	4.1	3.7
Expected return on plan assets	(2.9)	(2.5)
Net periodic benefit cost	4.0	4.7
Non U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	2.5	2.6
Interest cost	3.7	3.8
Expected return on plan assets	(3.8)	(4.1)
Net periodic benefit cost	$ 2.4	$ 2.3