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Leasing - Right of Use Assets and Lease Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Right of use assets and lease liabilities [Line Items]    
Finance Lease, Right-of-Use Asset $ 113.4 $ 24.9
Operating lease right-of-use assets 123.7 116.6
Finance Lease, Liability 88.8 21.6
Operating Lease, Liability 124.5 117.0
Property, plant and equipment, net [Member]    
Right of use assets and lease liabilities [Line Items]    
Finance Lease, Right-of-Use Asset 113.4 24.9
Operating lease right-of-use assets 0.0 0.0
Operating lease right-of-use assets [Member]    
Right of use assets and lease liabilities [Line Items]    
Finance Lease, Right-of-Use Asset 0.0 0.0
Operating lease right-of-use assets 123.7 116.6
Current portion of operating lease liabilities    
Right of use assets and lease liabilities [Line Items]    
Finance Lease, Liability 0.0 0.0
Operating Lease, Liability 24.6 22.6
Accrued expenses and other [Member]    
Right of use assets and lease liabilities [Line Items]    
Finance Lease, Liability 6.3 3.3
Operating Lease, Liability 0.0 0.0
Long-term portion of operating lease liabilities    
Right of use assets and lease liabilities [Line Items]    
Finance Lease, Liability 0.0 0.0
Operating Lease, Liability 99.9 94.4
Postretirement benefits and other long-term liabilities [Member]    
Right of use assets and lease liabilities [Line Items]    
Finance Lease, Liability 82.5 18.3
Operating Lease, Liability $ 0.0 $ 0.0