Pension Plans and Postretirement Benefits (Funded Status) (Details) - USD ($) $ in Millions	Jan. 03, 2021	Dec. 29, 2019
Amounts recognized in the consolidated balance sheets:
Assets for Plan Benefits, Defined Benefit Plan	$ 67.9	$ 71.8
Pension Plan | Domestic
Funded Status and Amounts Recognized in Balance Sheets [Abstract]
Funded status	7.7	30.0
Amounts recognized in the consolidated balance sheets:
Assets for Plan Benefits, Defined Benefit Plan	67.9	71.8
Accrued pension obligation long-term	(51.6)	(33.8)
Accrued pension obligation short-term	(2.7)	(2.7)
Other long-term liabilities	(5.9)	(5.3)
Accrued benefit cost	7.7	30.0
Amounts recognized in accumulated other comprehensive loss:
Net prior service cost (credit)	(6.6)	(30.6)
Net loss	454.2	431.7
Net amount recognized, before tax effect	447.6	401.1
Pension Plan | Foreign
Funded Status and Amounts Recognized in Balance Sheets [Abstract]
Funded status	(16.0)	(12.3)
Amounts recognized in the consolidated balance sheets:
Assets for Plan Benefits, Defined Benefit Plan	0.0	0.0
Accrued pension obligation long-term	(15.5)	(11.7)
Accrued pension obligation short-term	(0.5)	(0.6)
Other long-term liabilities	0.0	0.0
Accrued benefit cost	(16.0)	(12.3)
Amounts recognized in accumulated other comprehensive loss:
Net prior service cost (credit)	0.8	(0.4)
Net loss	10.6	7.8
Net amount recognized, before tax effect	$ 11.4	$ 7.4