Pension Plans and Postretirement Benefits (Net Periodic Pension Benefit (Income) Expense) (Details) - Pension Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
United States
Components of net period pension benefit expense
Service cost - benefits earned during the period (in millions)	$ (8.5)	$ (9.8)	$ (10.2)
Pension non-service income (in millions):
Interest cost on benefit obligation	32.4	31.5	35.6
Expected return on plan assets	(64.8)	(70.0)	(71.3)
Amortization of prior service cost	(6.0)	(6.0)	(6.0)
Amortization of actuarial gain	30.6	31.1	28.6
Curtailment	0.0	0.0	0.0
Postretirement benefits non-service expense	(7.8)	(13.4)	(13.1)
Foreign Plan
Components of net period pension benefit expense
Service cost - benefits earned during the period (in millions)	(0.9)	(0.9)	(1.0)
Pension non-service income (in millions):
Interest cost on benefit obligation	1.2	1.3	1.2
Expected return on plan assets	(1.4)	(1.7)	(2.1)
Amortization of prior service cost	0.1	(0.1)	(0.1)
Amortization of actuarial gain	0.3	0.4	0.6
Curtailment	(0.5)	(0.1)	(0.4)
Postretirement benefits non-service expense	$ (0.3)	$ (0.2)	$ (0.8)