Pension Plans and Postretirement Benefits (Benefit Obligation) (Details) - Pension Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
United States
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation - beginning of year	$ 731.7	$ 812.3
Service cost - benefits earned during the year	8.5	9.8	$ 10.2
Interest cost on projected benefit obligation	32.4	31.5	35.6
Actuarial (gain) loss	93.1	(41.2)
Benefits paid	(60.0)	(80.7)
Plan amendments	0.0	0.0
Settlements/curtailments	0.0	0.0
Other - including foreign currency	0.0	0.0
Benefit obligation - end of year	805.7	731.7	812.3
Accumulated benefit obligation - end of year	801.3	728.5
Foreign Plan
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation - beginning of year	52.3	57.8
Service cost - benefits earned during the year	0.9	0.9	1.0
Interest cost on projected benefit obligation	1.2	1.3	1.2
Actuarial (gain) loss	5.6	(1.7)
Benefits paid	(2.0)	(1.9)
Plan amendments	0.0	1.1
Settlements/curtailments	1.9	(2.4)
Other - including foreign currency	0.4	(2.8)
Benefit obligation - end of year	60.3	52.3	$ 57.8
Accumulated benefit obligation - end of year	$ 56.3	$ 53.7