Leases and Commitments (Income and Expenses) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 44.5	$ 51.7	$ 63.6
Amortization of right-of-use assets	1.1	1.3	1.2
Interest on lease liabilities	0.2	0.2	0.3
Short-term leases costs	7.1	11.0	2.3
Sublease Income	(14.9)	(14.5)	(15.3)
Net lease cost	$ 38.0	$ 49.7	$ 52.1