Post Retirement Benefit Plans - Changes in Accumulated Other Comprehensive (Income) or Loss (Details) - USD ($) $ in Millions |
12 Months Ended |
Oct. 31, 2016 |
Oct. 31, 2015 |
| Defined Benefit Plan, Changes in Accumulated Other Comprehensive (Income) Loss [Roll Forward] |
|
|
| Accumulated other comprehensive loss at beginning of year |
$ 188.6
|
$ 198.8
|
| Net transition obligation amortized during fiscal year |
0.0
|
(0.1)
|
| Net prior service costs amortized during fiscal year |
0.2
|
(0.1)
|
| Net loss amortized during fiscal year |
(11.4)
|
(14.2)
|
| Prior service cost recognized during fiscal year due to curtailment |
0.0
|
(0.3)
|
| Transition obligation recognized during fiscal year due to curtailment |
0.0
|
(0.2)
|
| Loss recognized during fiscal year due to settlement |
(0.1)
|
(0.1)
|
| Prior service credit occurring during fiscal year |
0.5
|
(3.2)
|
| Liability loss occurring during fiscal year |
69.8
|
8.4
|
| Asset loss (gain) occurring during fiscal year |
(39.4)
|
7.5
|
| Increase (decrease) in accumulated other comprehensive loss |
19.6
|
(2.3)
|
| Foreign currency impact |
(8.4)
|
(7.9)
|
| Accumulated other comprehensive loss at current fiscal year end |
$ 199.8
|
$ 188.6
|