XML 56 R46.htm IDEA: XBRL DOCUMENT v3.19.1
Leasing Right of use assets and lease liabilities (Details)
$ in Millions
Mar. 31, 2019
USD ($)
Right of use assets and lease liabilities [Line Items]  
Finance Lease, Right-of-Use Asset $ 3.2
Finance Lease, Liability 3.2
Operating Lease, Right-of-Use Asset 84.1
Operating Lease, Liability 83.8
Property, Plant and Equipment [Member]  
Right of use assets and lease liabilities [Line Items]  
Finance Lease, Right-of-Use Asset 3.2
Operating Lease, Right-of-Use Asset 0.0
Other Assets and Deferred Charges [Member]  
Right of use assets and lease liabilities [Line Items]  
Finance Lease, Right-of-Use Asset 0.0
Operating Lease, Right-of-Use Asset 84.1
Accrued expenses and other [Member]  
Right of use assets and lease liabilities [Line Items]  
Finance Lease, Liability 0.9
Operating Lease, Liability 21.9
Postretirement benefits and other long-term liabilities [Member]  
Right of use assets and lease liabilities [Line Items]  
Finance Lease, Liability 2.3
Operating Lease, Liability $ 61.9