Post Retirement Benefit Plans - Benefit Obligations in Excess of Plan Assets (Detail) - USD ($) $ in Millions	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Plan assets	$ 568.6	$ 626.3	$ 624.7
United States
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Plan assets	268.6	332.5	311.1
Foreign Plan | Germany
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Plan assets	0.0	0.0	0.0
Foreign Plan | United Kingdom
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Plan assets	188.9	185.1	208.4
Foreign Plan | Netherlands
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Plan assets	97.5	96.1	92.7
Foreign Plan | Other International
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Plan assets	13.6	12.6	12.5
Pension Plan
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Projected benefit obligation	717.8	783.8	765.8
Accumulated benefit obligation	686.8	752.9
Plan assets	568.6	626.3
Plans with accumulated benefit obligation in excess of plan assets, accumulated benefit obligation	522.9	492.7
Plans with accumulated benefit obligations in excess of plan assets, Plan assets	379.7	342.5
Pension Plan | United States
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Projected benefit obligation	387.6	470.2	432.1
Accumulated benefit obligation	362.0	443.4
Plan assets	268.6	332.5
Plans with accumulated benefit obligation in excess of plan assets, accumulated benefit obligation	362.0	443.4
Plans with accumulated benefit obligations in excess of plan assets, Plan assets	268.6	332.5
Pension Plan | Foreign Plan | Germany
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Projected benefit obligation	39.9	41.8	38.7
Accumulated benefit obligation	38.1	39.1
Plan assets	0.0	0.0
Plans with accumulated benefit obligation in excess of plan assets, accumulated benefit obligation	38.1	39.1
Plans with accumulated benefit obligations in excess of plan assets, Plan assets	0.0	0.0
Pension Plan | Foreign Plan | United Kingdom
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Projected benefit obligation	186.9	171.4	184.0
Accumulated benefit obligation	186.9	171.4
Plan assets	188.9	185.1
Plans with accumulated benefit obligation in excess of plan assets, accumulated benefit obligation	111.3	0.0
Plans with accumulated benefit obligations in excess of plan assets, Plan assets	100.3	0.0
Pension Plan | Foreign Plan | Netherlands
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Projected benefit obligation	91.8	90.1	100.8
Accumulated benefit obligation	88.3	88.7
Plan assets	97.5	96.1
Plans with accumulated benefit obligation in excess of plan assets, accumulated benefit obligation	0.0	0.0
Plans with accumulated benefit obligations in excess of plan assets, Plan assets	0.0	0.0
Pension Plan | Foreign Plan | Other International
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Projected benefit obligation	11.6	10.3	$ 10.2
Accumulated benefit obligation	11.5	10.3
Plan assets	13.6	12.6
Plans with accumulated benefit obligation in excess of plan assets, accumulated benefit obligation	11.5	10.2
Plans with accumulated benefit obligations in excess of plan assets, Plan assets	$ 10.8	$ 10.0