Post Retirement Benefit Plans - Amounts Recognized in Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Unrecognized net actuarial loss	$ 202.5	$ 192.1
Unrecognized prior service cost	(2.7)	(3.5)
Unrecognized initial net obligation	0.0	0.0
Accumulated other comprehensive loss (Pre-tax)	199.8	188.6	$ 198.8
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	22.2	26.7
Accrued benefit liability	(179.7)	(167.8)
Accumulated other comprehensive loss	199.8	188.6	$ 198.8
Net amount recognized	42.3	47.5
United States
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Unrecognized net actuarial loss	145.4	126.6
Unrecognized prior service cost	(1.2)	(1.8)
Unrecognized initial net obligation	0.0	0.0
Accumulated other comprehensive loss (Pre-tax)	144.2	124.8
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	0.0	0.0
Accrued benefit liability	(137.7)	(121.0)
Accumulated other comprehensive loss	144.2	124.8
Net amount recognized	6.5	3.8
Non-United States | Germany
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Unrecognized net actuarial loss	18.4	15.9
Unrecognized prior service cost	0.0
Unrecognized initial net obligation	0.0	0.0
Accumulated other comprehensive loss (Pre-tax)	18.4	15.9
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	0.0	0.0
Accrued benefit liability	(41.8)	(38.6)
Accumulated other comprehensive loss	18.4	15.9
Net amount recognized	(23.4)	(22.7)
Non-United States | United Kingdom
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Unrecognized net actuarial loss	36.4	32.9
Unrecognized prior service cost	0.0
Unrecognized initial net obligation	0.0	0.0
Accumulated other comprehensive loss (Pre-tax)	36.4	32.9
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	13.7	24.4
Accrued benefit liability	0.0	0.0
Accumulated other comprehensive loss	36.4	32.9
Net amount recognized	50.1	57.3
Non-United States | Netherlands
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Unrecognized net actuarial loss	(0.1)	14.9
Unrecognized prior service cost	(1.5)	(1.7)
Unrecognized initial net obligation	0.0	0.0
Accumulated other comprehensive loss (Pre-tax)	(1.6)	13.2
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	6.0	0.0
Accrued benefit liability	0.0	(8.2)
Accumulated other comprehensive loss	(1.6)	13.2
Net amount recognized	4.4	5.0
Non-United States | Other International
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Unrecognized net actuarial loss	2.4	1.8
Unrecognized prior service cost	0.0	0.0
Unrecognized initial net obligation	0.0	0.0
Accumulated other comprehensive loss (Pre-tax)	2.4	1.8
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	2.5	2.3
Accrued benefit liability	(0.2)	0.0
Accumulated other comprehensive loss	2.4	1.8
Net amount recognized	$ 4.7	$ 4.1