Leases (Details 1) $ in Millions	Dec. 31, 2017 USD ($)
Minimum Future Receipts
2016, Finance Leases	$ 21.1
2017, Finance Leases	21.1
2018, Finance Leases	20.6
2019, Finance Leases	19.9
2020, Finance Leases	28.8
Years thereafter, Finance Leases	28.8
Total, Finance Leases	140.3
2016, Operating Leases	947.7
2017, Operating Leases	755.8
2018, Operating Leases	589.9
2019, Operating Leases	424.8
2020, Operating Leases	302.8
Years thereafter, Operating Leases	524.8
Total future receipts from leases	(3,545.8)	[1]
2016, Total	968.8
2017, Total	776.9
2018, Total	610.5
2019, Total	444.7
2020, Total	331.6
Years thereafter, Total	553.6
Total	$ 3,686.1

[1] (1) The future contractual receipts due under our full-service operating leases include executory costs such as maintenance, car taxes, and insurance.