Debt Debt - Financing Leases (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Financing Leases	$ 276.7	$ 215.3
Less: accumulated amortization	(114.2)	(91.3)
Total	162.5	124.0
Buildings
Debt Instrument [Line Items]
Financing Leases	4.1	2.2
Vehicles
Debt Instrument [Line Items]
Financing Leases	267.5	212.4
Machinery and equipment
Debt Instrument [Line Items]
Financing Leases	$ 5.1	$ 0.7