Retirement Plans (Schedule of Net Periodic Benefit Costs and Benefit Payments Expected Future Service) (Details) - Pension Plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	$ 2.1	$ 1.4	$ 1.2
Interest Cost	22.8	14.0	7.5
Expected Return on Plan Assets	(27.1)	(20.3)	(14.5)
Amortization of Net Actuarial Gain (Loss)	(1.8)	1.0	3.0
Amortization of Prior Service Cost	0.1	0.1	0.2
Curtailment Expense	0.2	0.0	0.0
Net Periodic Benefit Cost	(3.7)	(3.8)	(2.6)
Prior Service Cost	0.1	0.1	0.1
Net Actuarial (Gain) Loss	(14.4)	0.7	2.4
Total Recognized in OCI	(14.3)	$ 0.8	$ 2.5
2024	37.9
2025	36.6
2026	37.0
2027	35.9
2028	35.9
2029-2033	$ 171.0