Retirement, Pension and Other Postretirement Plans - Allocation of Pension Plan Assets (Detail) - Pension Plans [Member]	Oct. 31, 2018	Oct. 31, 2017
United States [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
International [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Equity Securities [Member] | United States [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	13.00%	13.00%
Debt Securities [Member] | United States [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	50.00%	48.00%
Insurance Contracts [Member] | International [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	55.00%	56.00%
Pooled Investment Funds [Member] | United States [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	36.00%	39.00%
Pooled Investment Funds [Member] | International [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	44.00%	42.00%
Other [Member] | United States [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	1.00%
Other [Member] | International [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	1.00%	2.00%