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Restructuring Charges 2020 Plan Restructuring Activity (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and termination costs | $ 44.6 | $ 2.1 | $ 44.6 | $ 22.0
Lease impairment costs | 65.7 | 0.0 | 65.7 | 11.9
Other restructuring costs | 2.3 | 0.0 | 2.3 | 0.0
Restructuring charges | 112.6 | $ 2.1 | 112.6 | $ 33.9
Restructuring Reserve | 33.8 |  | 33.8 |
Employee Severance [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Reserve | 33.8 |  | 33.8 |
Lease impairment costs [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Reserve | 0.0 |  | 0.0 |
Other Restructuring [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Reserve | 0.0 |  | $ 0.0 |
Non-cash Items [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and termination costs | 0.7 |  |  |
Lease impairment costs | 65.7 |  |  |
Other restructuring costs | 1.2 |  |  |
Restructuring charges | 67.6 |  |  |
Cash Payments [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and termination costs | 10.1 |  |  |
Lease impairment costs | 0.0 |  |  |
Other restructuring costs | 1.1 |  |  |
Restructuring charges | $ 11.2 |  |  |

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