Post Retirement Benefit Plans - Actuarial Assumptions Used to Measure Benefit Obligations and Pension Costs (Details)	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Discount rate	2.74%	3.48%	3.01%
Expected return on plan assets	4.12%	4.53%	5.39%
Rate of compensation increase	2.85%	2.85%	2.87%
United States
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Discount rate	3.27%	4.59%	3.79%
Expected return on plan assets	5.10%	6.25%	6.25%
Rate of compensation increase	3.00%	3.00%	3.00%
Germany
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Discount rate	0.73%	1.80%	1.72%
Rate of compensation increase	2.75%	2.75%	2.75%
United Kingdom
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Discount rate	1.76%	2.50%	2.37%
Expected return on plan assets	3.60%	3.60%	6.00%
Netherlands
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Discount rate	0.74%	1.64%	1.55%
Expected return on plan assets	1.51%	1.45%	1.20%
Rate of compensation increase	2.25%	2.25%	2.25%
Other International
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Discount rate	3.98%	4.84%	4.46%
Expected return on plan assets	6.00%	5.69%	5.70%