Retirement, Pension and Other Postretirement Plans - Defined Benefit Plan Effect of One Percentage Point Change in Assumed Health Care Cost Trend Rates and Discount Rate (Detail) - Retirement Plans $ in Thousands	12 Months Ended
	Oct. 31, 2020 USD ($)
United States
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Effect on total net postretirement benefit cost components increase in 2020	$ 431
Effect on postretirement obligation increase as of October 31, 2020	11,019
Effect on total net postretirement benefit cost components decrease in 2020	(345)
Effect on postretirement obligation decrease as of October 31, 2020	(9,100)
International
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Effect on total net postretirement benefit cost components increase in 2020	7
Effect on postretirement obligation increase as of October 31, 2020	103
Effect on total net postretirement benefit cost components decrease in 2020	(5)
Effect on postretirement obligation decrease as of October 31, 2020	$ (80)