Leases - Maturity (Details) $ in Millions	Sep. 30, 2019 USD ($)
Operating Leases
2019	$ 40.8
2020	147.8
2021	123.9
2022	72.8
2023	37.0
After 2023	47.9
Total lease payments	470.2
Less: Imputed interest	87.0
Present value of lease liabilities	383.2
Finance Leases
2019	0.2
2020	0.6
2021	0.6
2022	0.6
2023	0.6
After 2023	4.2
Total lease payments	6.8
Less: Imputed interest	3.2
Present value of lease liabilities	3.6
Total
2019	41.0
2020	148.4
2021	124.5
2022	73.4
2023	37.6
After 2023	52.1
Total lease payments	477.0
Less: Imputed interest	90.2
Present value of lease liabilities	$ 386.8