Leases Components of Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Components of Lease Expense [Abstract]
Operating Lease, Expense	$ 87.3	$ 93.6	$ 109.0
Finance Lease, Right-of-Use Asset, Amortization	2.9	1.5	0.7
Finance Lease, Interest Expense	0.9	0.5	0.4
Variable Lease, Cost	$ 7.8	$ 8.0	$ 13.2