Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Pension Benefit, U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1.9	$ 2.2	$ 3.5	$ 4.4
Interest cost	13.6	14.1	26.9	28.2
Expected return on plan assets	(18.7)	(18.0)	(37.4)	(36.0)
Amortization of prior service cost (credit)	0.2	0.3	0.4	0.6
Defined Benefit Plan, Amortization of Gains (Losses)	2.2	0.2	3.9	0.4
Curtailment loss			0.0	0.0
Net periodic benefit cost	(0.8)	(1.2)	(2.7)	(2.4)
Pension Benefits, Non-U.S Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	3.6	3.4	7.2	6.7
Interest cost	12.0	15.2	23.8	30.1
Expected return on plan assets	(14.2)	(15.5)	(28.2)	(30.7)
Amortization of prior service cost (credit)	0.1	0.1	0.2	0.2
Defined Benefit Plan, Amortization of Gains (Losses)	2.1	1.8	4.2	3.6
Curtailment loss			0.3	0.0
Net periodic benefit cost	3.6	5.0	7.5	9.9
Other Benefits, U.S Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.2	0.3	0.3	0.5
Interest cost	0.5	0.6	1.1	1.3
Expected return on plan assets	0.0	0.0	0.0	0.0
Amortization of prior service cost (credit)	(0.3)	(0.4)	(0.6)	(0.7)
Defined Benefit Plan, Amortization of Gains (Losses)	0.0	0.0	0.0	0.0
Curtailment loss			0.0	0.0
Net periodic benefit cost	$ 0.4	$ 0.5	$ 0.8	$ 1.1