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Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Maturities of lease liabilities [Line Items] |  |
Capital Leases, Future Minimum Payments Due, Next Twelve Months | $ 11.1 |
Capital Leases, Future Minimum Payments Due in Two Years | 0.0 |
Capital Leases, Future Minimum Payments Due in Three Years | 0.0 |
Capital Leases, Future Minimum Payments Due in Four Years | 0.0 |
Capital Leases, Future Minimum Payments Due in Five Years | 0.0 |
Finance Lease, Liability, Payments, Due after Year Five | 0.0 |
Capital Leases, Future Minimum Payments Due | 11.1 |
Lessee, Operating Lease, Discount Rate | (92.1) |
Capital Leases, Future Minimum Payments, Interest Included in Payments | (0.1) |
Lessee, leases, Liability | 467.3 |
Lessee, leases, discount rate | 92.2 |
Sublease Income | 18.0 |
Operating Leases |  |
Total discounted lease liabilities | 456.3 | $ 0.0
Finance Leases |  |
Total discounted lease liabilities | 11.0 | 11.3
Total |  |
Total discounted lease liabilities | 467.3 | $ 11.3
Recourse Operating Leases [Member] |  |
Maturities of lease liabilities [Line Items] |  |
Operating Leases, Future Minimum Payments Due, Next Twelve Months | 34.8 |
LesseeLeasesFutureMinimumPaymentsDueNextTwelveMonths | 45.9 |
Operating Leases, Future Minimum Payments, Due in Two Years | 67.7 |
LesseeLeasesFutureMinimumPaymentsDueInTwoYears | 67.7 |
Operating Leases, Future Minimum Payments, Due in Three Years | 66.1 |
LesseeLeasesFutureMinimumPaymentsDueInThreeYears | 66.1 |
Operating Leases, Future Minimum Payments, Due in Four Years | 57.2 |
LesseeLeasesFutureMinimumPaymentsDueInFourYears | 57.2 |
Operating Leases, Future Minimum Payments, Due in Five Years | 54.4 |
LesseeLeasesFutureMinimumPaymentsDueInFiveYears | 54.4 |
Operating Leases, Future Minimum Payments, Due Thereafter | 268.2 |
LesseeLeasesFutureMinimumPaymentsDueThereafter | 268.2 |
Operating Leases, Future Minimum Payments Due | 548.4 |
Lessee leases future minimum payments due | $ 559.5 |

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- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 + Details
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- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 + Details
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