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Components of Net Periodic Benefit Cost (Detail) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Domestic Plan [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 3.1 $ 1.8 $ 9.3 $ 5.6
Interest cost 11.8 10.7 35.3 32.1
Expected return on plan assets (15.4) (17.2) (46.3) (51.5)
Amortization of prior service cost (credit) 0.2 0.3 0.7 0.8
Defined Benefit Plan, Amortization of Gain (Loss) 2.0 2.0 6.0 5.9
Curtailment loss 0.0 0.0 0.0 0.0
Net periodic benefit cost 1.7 (2.4) 5.0 (7.1)
Foreign Plan [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 3.5 3.8 10.9 11.5
Interest cost 7.4 7.0 22.7 21.7
Expected return on plan assets (11.1) (11.4) (34.1) (35.4)
Amortization of prior service cost (credit) (0.1) (0.4) (0.5) (1.0)
Defined Benefit Plan, Amortization of Gain (Loss) 2.1 1.8 6.5 6.5
Curtailment loss (0.2) 0.1 0.0 0.3
Net periodic benefit cost 1.6 0.9 5.5 3.6
Other Postretirement Benefits Plan [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 0.1 0.1 0.2 0.4
Interest cost 0.4 0.4 1.2 1.2
Expected return on plan assets 0.0 0.0 0.0 0.0
Amortization of prior service cost (credit) (0.3) (0.3) (1.0) (1.0)
Defined Benefit Plan, Amortization of Gain (Loss) (0.1) 0.0 (0.2) 0.0
Curtailment loss 0.0 0.0 0.0 0.0
Net periodic benefit cost $ 0.1 $ 0.2 $ 0.2 $ 0.6