- Lease Liabilities (Details) - USD ($) $ in Millions	Jan. 31, 2020	Oct. 31, 2019
Leases [Abstract]
Operating lease assets	$ 327.2	$ 0.0
Finance lease assets	5.2
Total lease assets	332.4
Current portion of operating lease liabilities	60.3	0.0
Current finance lease liabilities	1.8
Total current lease liabilities	62.1
Operating lease liabilities	271.4	$ 0.0
Non-current finance lease liabilities	3.4
(in millions)	274.8
Total lease liabilities	$ 336.9