POST-RETIREMENT BENEFIT PLANS - Amounts Recognized in Consolidated Financial Statements - in Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Unrecognized net actuarial loss (gain)	$ 110.3	$ 93.4
Unrecognized prior service benefit	(1.1)	(1.4)
Accumulated other comprehensive loss (income) - Pre-tax	109.2	92.0	$ 85.2
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	36.2	30.8
Accrued benefit liability	(56.3)	(58.0)
Accumulated other comprehensive loss - Pre-tax	109.2	92.0	$ 85.2
Net amount recognized	89.1	64.8
United States
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Unrecognized net actuarial loss (gain)	50.7	41.0
Unrecognized prior service benefit	(0.2)	(0.4)
Accumulated other comprehensive loss (income) - Pre-tax	50.5	40.6
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	22.8	11.7
Accrued benefit liability	(28.7)	(30.8)
Accumulated other comprehensive loss - Pre-tax	50.5	40.6
Net amount recognized	44.6	21.5
Germany
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Unrecognized net actuarial loss (gain)	1.6	2.3
Unrecognized prior service benefit	0.0	0.0
Accumulated other comprehensive loss (income) - Pre-tax	1.6	2.3
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	0.0	0.0
Accrued benefit liability	(26.4)	(25.9)
Accumulated other comprehensive loss - Pre-tax	1.6	2.3
Net amount recognized	(24.8)	(23.6)
United Kingdom
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Unrecognized net actuarial loss (gain)	53.9	43.2
Unrecognized prior service benefit	0.0	0.0
Accumulated other comprehensive loss (income) - Pre-tax	53.9	43.2
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	10.2	15.8
Accrued benefit liability	0.0	0.0
Accumulated other comprehensive loss - Pre-tax	53.9	43.2
Net amount recognized	64.1	59.0
Netherlands
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Unrecognized net actuarial loss (gain)	4.3	3.9
Unrecognized prior service benefit	(0.9)	(1.0)
Accumulated other comprehensive loss (income) - Pre-tax	3.4	2.9
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	0.0	0.0
Accrued benefit liability	(1.2)	(1.3)
Accumulated other comprehensive loss - Pre-tax	3.4	2.9
Net amount recognized	2.2	1.6
Other International
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Unrecognized net actuarial loss (gain)	(0.2)	3.0
Unrecognized prior service benefit	0.0	0.0
Accumulated other comprehensive loss (income) - Pre-tax	(0.2)	3.0
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost	3.2	3.3
Accrued benefit liability	0.0	0.0
Accumulated other comprehensive loss - Pre-tax	(0.2)	3.0
Net amount recognized	$ 3.0	$ 6.3