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Leases Leases (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Operating lease assets | $ 427.0 | $ 0.0
Operating lease liability, noncurrent | 412.7 | 0.0
Operating lease liabilities | 486.3 |
Net lease cost | 86.7 |
ASC 842 - Minimum lease payments, 2020 | 87.6 |
ASC 842 - Minimum lease payments, 2021 | 81.5 |
ASC 842 - Minimum lease payments, 2022 | 75.7 |
ASC 842 - Minimum lease payments, 2023 | 72.5 |
ASC 842 - Minimum lease payments, 2024 | 69.0 |
ASC 842 - Minimum lease payments, thereafter | 158.3 |
Total lease payments | 544.6 |
Less: interest | $ 58.3 |
ASC 840 - Minimum lease payments, 2019 |  | 87.0
ASC 840 - Minimum lease payments, 2020 |  | 80.7
ASC 840 - Minimum lease payments, 2021 |  | 75.9
ASC 840 - Minimum lease payments, 2022 |  | 71.7
ASC 840 - Minimum lease payments, 2023 |  | 71.0
ASC 840 - Minimum lease payments, thereafter |  | 215.3
ASC 840 - Minimum lease payments, total |  | 601.6
ASC 840 - Sublease income, 2019 |  | (26.8)
ASC 840 - Sublease income, 2020 |  | (25.6)
ASC 840 - Sublease income, 2021 |  | (23.7)
ASC 840 - Sublease income, 2022 |  | (24.0)
ACS 840 - Sublease income, 2023 |  | (24.3)
ASC 840 - Sublease income, thereafter |  | (58.4)
ASC 840 - Sublease income, total |  | (182.8)
ASC 840 - Net minimum lease payments, 2019 |  | 60.2
ASC 840 - Net minimum lease payments, 2020 |  | 55.1
ASC 840 - Net minimum lease payments, 2021 |  | 52.2
ASC 840 - Net minimum lease payments, 2022 |  | 47.7
ASC 840 - Net minimum lease payments, 2023 |  | 46.7
ASC 840 - Net minimum lease payments, thereafter |  | 156.9
ASC 840 - Net minimum lease payments, total |  | $ 418.8
Operating Lease, Weighted Average Remaining Lease Term | 7 years 25 days |
Operating Lease, Weighted Average Discount Rate, Percent | 3.20% |
Operating Lease, Payments | $ 93.8 |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 35.9 |
Operating lease assets [Member] |  |
Operating lease assets | 427.0 |
Accrued expenses and other |  |
Operating lease liability, current | 73.6 |
Long-term operating lease liabilities [Member] |  |
Operating lease liability, noncurrent | 412.7 |
Research and development |  |
Operating lease cost | 6.7 |
Variable lease cost | 1.2 |
Selling, General and Administrative Expenses |  |
Operating lease cost | 84.6 |
Variable lease cost | 23.7 |
Sublease income | (25.6) |
Other income (expense) |  |
Sublease income | $ (3.9) |

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