Retirement, Pension and Other Postretirement Plans - Allocation of Pension Plan Assets (Detail)	Oct. 31, 2016	Oct. 31, 2015
Pension Plan, United States [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Pension Plan, United States [Member] | Equity Securities [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	15.00%	19.00%
Pension Plan, United States [Member] | Debt Securities [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	31.00%	29.00%
Pension Plan, United States [Member] | Pooled Investment Funds [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	53.00%	51.00%
Pension Plan, United States [Member] | Other [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	1.00%	1.00%
Pension Plan, International [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Pension Plan, International [Member] | Insurance Contracts [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	59.00%	54.00%
Pension Plan, International [Member] | Pooled Investment Funds [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	39.00%	46.00%
Pension Plan, International [Member] | Other [Member]
Allocation of pension plan assets
Defined Benefit Plan, Actual Plan Asset Allocations	2.00%