Commitments and Contingencies Leases (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Expense	$ 7.5	$ 7.3
Operating lease, right-of-use assets, net	49.4		$ 53.8
Accrued expenses and other liabilities	158.3		161.7
Long-term operating lease liabilities	36.8		41.5
Property, plant and equipment	3,676.2		3,612.5
Less: accumulated depreciation	743.3		703.4
Property, plant and equipment, net	2,932.9		2,909.1
Other long-term liabilities	280.0		301.6
Finance Lease Expense	1.1	$ 1.1
Operating Leases
Lessee, Lease, Description [Line Items]
Operating lease, right-of-use assets, net	49.4		53.8
Accrued expenses and other liabilities	18.6		18.1
Long-term operating lease liabilities	36.8		41.5
Operating lease, liability	55.4		59.6
Finance Lease
Lessee, Lease, Description [Line Items]
Accrued expenses and other liabilities	3.3		3.2
Property, plant and equipment	15.0		14.9
Less: accumulated depreciation	6.4		5.4
Property, plant and equipment, net	8.6		9.5
Other long-term liabilities	4.4		5.2
Finance Lease, Liability	$ 7.7		$ 8.4