NET PERIODIC BENEFIT COST - DEFINED BENEFIT PLANS - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Pension Benefits | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1.7	$ 3.1	$ 5.1	$ 9.3
Interest cost	8.8	11.8	26.5	35.3
Expected return on plan assets	(14.7)	(15.4)	(44.1)	(46.3)
Amortization of prior service cost (credit)	0.3	0.2	0.8	0.7
Amortization of net loss (gain)	2.1	2.0	6.4	6.0
Special termination benefit	0.0	0.0	0.0	0.0
Settlement / curtailment loss	0.0	0.0	0.0	0.0
Net periodic pension (benefit) expense	(1.8)	1.7	(5.3)	5.0
Pension Benefits | Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	4.0	3.5	11.9	10.9
Interest cost	5.7	7.4	16.7	22.7
Expected return on plan assets	(10.4)	(11.1)	(30.6)	(34.1)
Amortization of prior service cost (credit)	(0.1)	(0.1)	(0.5)	(0.5)
Amortization of net loss (gain)	2.9	2.1	8.6	6.5
Special termination benefit	0.0	0.0	0.0	0.0
Settlement / curtailment loss	0.3	(0.2)	0.6	0.0
Net periodic pension (benefit) expense	2.4	1.6	6.7	5.5
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.2	0.1	0.5	0.2
Interest cost	0.3	0.4	1.1	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)
Amortization of net loss (gain)	0.0	(0.1)	0.2	(0.2)
Special termination benefit	0.1	0.0	16.1	0.0
Settlement / curtailment loss	0.0	0.0	0.0	0.0
Net periodic pension (benefit) expense	$ 0.3	$ 0.1	$ 16.9	$ 0.2