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Right of use assets and lease liabilities (Details) $ in Millions | Jun. 30, 2019 USD ($)
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Right of use assets and lease liabilities [Line Items] |
Finance Lease, Right-of-Use Asset | $ 3.0
Operating Lease, Right-of-Use Asset | 79.4
Finance Lease, Liability | 3.0
Operating Lease, Liability | 79.4
Property, Plant and Equipment [Member] |
Right of use assets and lease liabilities [Line Items] |
Finance Lease, Right-of-Use Asset | 3.0
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 | 79.4
Accrued expenses and other [Member] |
Right of use assets and lease liabilities [Line Items] |
Finance Lease, Liability | 0.8
Operating Lease, Liability | 22.0
Postretirement benefits and other long-term liabilities [Member] |
Right of use assets and lease liabilities [Line Items] |
Finance Lease, Liability | 2.2
Operating Lease, Liability | $ 57.4

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- Definition [Line Items] for Right of use assets and lease liabilities [Table] + References No definition available. + Details
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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