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Leases (Schedule of Lease-Related Liabilities Recorded on the Balance Sheet) (Details) - USD ($) $ in Millions | Mar. 31, 2019 | Jan. 01, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Operating lease liabilities: |  |  |
Current portion included in accrued liabilities | $ 25.5 |  | $ 0.0
Noncurrent operating lease liabilities | 235.2 | $ 241.0 | 0.0
Total operating lease liabilities | 260.7 |  | 0.0
Financing lease liabilities: |  |  |
Current portion included in Current maturities of long-term debt | 1.0 |  | 2.0
Long-term portion of lease liabilities in other debt | 29.9 |  | 28.8
Total financing lease liabilities | 30.9 |  | 30.8
Total lease liabilities | $ 291.6 |  | $ 30.8
Weighted-average remaining lease term, operating leases | 13 years |  |
Weighted-average remaining lease term, finance leases | 14 years |  |
Weighted-average discount rate, operating leases | 5.07% |  |
Weighted-average discount rate, finance leases | 5.81% |  |

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