Retirement, Pension and Other Postretirement Plans - Weighted Average Assumptions Representing the Rates Used to Develop the Actuarial Present Value of Projected Benefit Obligation and the Net Periodic Benefit Costs (Detail)	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Pension Plan, United States [Member]
Assumptions used to determine benefit obligations at October 31:
Discount rate	3.94%	4.39%	4.29%
Rate of compensation increase	3.61%	3.50%	3.49%
Assumptions used to determine net benefit costs for the years ended October 31:
Discount rate	4.39%	4.29%	4.75%
Expected return on plan assets	6.72%	6.76%	7.24%
Rate of compensation increase	3.50%	3.49%	3.30%
Pension Plan, International [Member]
Assumptions used to determine benefit obligations at October 31:
Discount rate	1.86%	2.81%	2.94%
Rate of compensation increase	3.12%	3.22%	3.19%
Assumptions used to determine net benefit costs for the years ended October 31:
Discount rate	2.81%	2.94%	3.72%
Expected return on plan assets	4.22%	4.39%	4.60%
Rate of compensation increase	3.22%	3.19%	3.18%
Postretirement Benefit Plans, United States [Member]
Assumptions used to determine benefit obligations at October 31:
Discount rate	4.05%	4.50%	4.40%
Health care cost trend rate	3.63%	3.72%	3.93%
Rate to which health care cost trend rate is assumed to decline (ultimate trend rate)	3.24%	3.27%	3.41%
Year the rate reaches the ultimate trend rate	2026	2025	2024
Assumptions used to determine net benefit costs for the years ended October 31:
Discount rate	4.50%	4.40%	4.80%
Postretirement Benefit Plans, International [Member]
Assumptions used to determine benefit obligations at October 31:
Discount rate	3.40%	4.35%	4.25%
Health care cost trend rate	6.13%	6.31%	6.48%
Rate to which health care cost trend rate is assumed to decline (ultimate trend rate)	3.50%	3.50%	3.50%
Year the rate reaches the ultimate trend rate	2031	2031	2031
Assumptions used to determine net benefit costs for the years ended October 31:
Discount rate	4.35%	4.25%	4.95%