Post Retirement Benefit Plans - Change in Projected Benefit Obligation (Detail) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Change in benefit obligation:
Settlements	$ (94.4)
Pension Plan
Change in benefit obligation:
Benefit obligation at beginning of year	783.8	$ 765.8
Service cost	13.3	12.4	$ 15.5
Interest cost	18.2	22.0	27.6
Plan participant contributions	0.2	0.2
Expenses paid from assets	(3.4)	(4.0)
Plan Amendments	(0.2)	0.5
Actuarial (gain) loss	13.2	70.1
Foreign currency effect	22.4	(43.4)
Benefits paid	(26.2)	(39.8)
Settlements	(101.7)
Business divestiture	(1.8)
Benefit obligation at end of year	717.8	783.8	765.8
Pension Plan | United States
Change in benefit obligation:
Benefit obligation at beginning of year	470.2	432.1
Service cost	11.8	10.2	11.3
Interest cost	12.9	13.7	17.3
Plan participant contributions	0.0	0.0
Expenses paid from assets	(2.6)	(3.3)
Plan Amendments	0.0	0.5
Actuarial (gain) loss	4.7	39.1
Foreign currency effect	0.0	0.0
Benefits paid	(15.0)	(22.1)
Settlements	(94.4)
Business divestiture	0.0
Benefit obligation at end of year	387.6	470.2	432.1
Pension Plan | Foreign Plan | Germany
Change in benefit obligation:
Benefit obligation at beginning of year	41.8	38.7
Service cost	0.5	0.5	0.5
Interest cost	0.5	0.8	0.9
Plan participant contributions	0.0	0.0
Expenses paid from assets	0.0	0.0
Plan Amendments	0.0	0.0
Actuarial (gain) loss	(2.4)	3.6
Foreign currency effect	2.5	(0.6)
Benefits paid	(1.2)	(1.2)
Settlements	0.0
Business divestiture	(1.8)
Benefit obligation at end of year	39.9	41.8	38.7
Pension Plan | Foreign Plan | United Kingdom
Change in benefit obligation:
Benefit obligation at beginning of year	171.4	184.0
Service cost	0.5	0.8	1.8
Interest cost	3.8	5.7	6.5
Plan participant contributions	0.0	0.0
Expenses paid from assets	(0.8)	(0.7)
Plan Amendments	0.0	0.0
Actuarial (gain) loss	10.5	33.4
Foreign currency effect	13.7	(41.5)
Benefits paid	(4.9)	(10.3)
Settlements	(7.3)
Business divestiture	0.0
Benefit obligation at end of year	186.9	171.4	184.0
Pension Plan | Foreign Plan | Netherlands
Change in benefit obligation:
Benefit obligation at beginning of year	90.1	100.8
Service cost	0.4	0.7	1.4
Interest cost	0.7	1.4	2.4
Plan participant contributions	0.2	0.2
Expenses paid from assets	0.1	0.2
Plan Amendments	(0.2)	0.0
Actuarial (gain) loss	(0.6)	(7.1)
Foreign currency effect	5.7	(1.2)
Benefits paid	(4.6)	(4.9)
Settlements	0.0
Business divestiture	0.0
Benefit obligation at end of year	91.8	90.1	100.8
Pension Plan | Foreign Plan | Other International
Change in benefit obligation:
Benefit obligation at beginning of year	10.3	10.2
Service cost	0.1	0.2	0.5
Interest cost	0.3	0.4	0.5
Plan participant contributions	0.0	0.0
Expenses paid from assets	(0.1)	(0.2)
Plan Amendments	0.0	0.0
Actuarial (gain) loss	1.0	1.1
Foreign currency effect	0.5	(0.1)
Benefits paid	(0.5)	(1.3)
Settlements	0.0
Business divestiture	0.0
Benefit obligation at end of year	$ 11.6	$ 10.3	$ 10.2