Leases - Maturity (Details) $ in Millions	Mar. 31, 2019 USD ($)
Operating Leases
2019	$ 106.9
2020	124.1
2021	100.2
2022	49.9
2023	21.5
After 2023	16.5
Total lease payments	419.1
Less: Imputed interest	72.2
Present value of lease liabilities	346.9
Finance Leases
2019	0.5
2020	0.6
2021	0.6
2022	0.6
2023	0.6
After 2023	4.2
Total lease payments	7.1
Less: Imputed interest	3.4
Present value of lease liabilities	3.7
Total
2019	107.4
2020	124.7
2021	100.8
2022	50.5
2023	22.1
After 2023	20.7
Total lease payments	426.2
Less: Imputed interest	75.6
Present value of lease liabilities	$ 350.6