Post Retirement Benefit Plans - Number of Participants in Defined Benefit Plans (Details) - Pension Plan - Participant	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Active participants	2,226	2,455
Vested former employees and deferred members	3,385	5,236
Retirees and beneficiaries	6,526	6,462
Netherlands
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Active participants	63	63
Vested former employees and deferred members	105	97
Retirees and beneficiaries	405	414
United Kingdom
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Active participants	0	0
Vested former employees and deferred members	366	366
Retirees and beneficiaries	662	662
United States
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Active participants	2,127	2,351
Vested former employees and deferred members	2,788	4,643
Retirees and beneficiaries	5,138	5,074
Germany
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Active participants	36	41
Vested former employees and deferred members	82	86
Retirees and beneficiaries	267	258
Other International
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Active participants	0	0
Vested former employees and deferred members	44	44
Retirees and beneficiaries	54	54