Operating Leases (Tables)

12 Months Ended

Dec. 31, 2017

Leases, Operating [Abstract]

Future Minimum Lease Payments

Future minimum lease payments for all operating leases are as follows:

	Leased Facilities and Equipment		Leased Vehicles	Total
2018	$	96.8	37.0	133.8
2019	70.9		23.7	94.6
2020	47.5		10.4	57.9
2021	25.2		1.9	27.1
2022	9.3		—	9.3
2023 and thereafter	2.0		—	2.0
Total minimum lease payments	$	251.7	73.0	324.7

Rent Expense

Rent expense under all operating leases was as follows:

	Leased Facilities and Equipment		Leased Vehicles	Total
2017	$	109.5	45.8	155.3
2016	$	110.1	42.7	152.8
2015	$	105.9	38.2	144.1