Leases (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Leased Assets [Line Items]
2017		$ 88.6
2018		55.5
2019		35.9
2020		19.3
2021		15.3
Thereafter		15.6
Total Due		230.2
Rent expense		84.3	$ 67.7	$ 72.2
Real Estate
Operating Leased Assets [Line Items]
2017		55.7
2018		37.0
2019		26.7
2020		17.0
2021		13.6
Thereafter		15.6
Total Due		165.6
Vehicles and Equipment
Operating Leased Assets [Line Items]
2017	[1]	32.9
2018	[1]	18.5
2019	[1]	9.2
2020	[1]	2.3
2021	[1]	1.7
Thereafter	[1]	0.0
Total Due	[1]	$ 64.6
Minimum | Vehicles and Equipment
Operating Leased Assets [Line Items]
Term of operating lease		36 months
Maximum | Vehicles and Equipment
Operating Leased Assets [Line Items]
Term of operating lease		60 months

[1] The Company leases vehicles with contractual terms of 36 to 60 months that are cancellable after 12 months without penalty. Future minimum lease payments reflect only the minimum payments during the initial 12-month non-cancellable term.