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Retirement, Pension and Other Postretirement Plans - Allocation of Pension Plan Assets (Detail)
Oct. 31, 2015
Oct. 31, 2014
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 19.00% 23.00%
Pension Plan, United States [Member] | Debt Securities [Member]    
Allocation of pension plan assets    
Defined Benefit Plan, Actual Plan Asset Allocations 29.00% 29.00%
Pension Plan, United States [Member] | Pooled Investment Funds [Member]    
Allocation of pension plan assets    
Defined Benefit Plan, Actual Plan Asset Allocations 51.00% 47.00%
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 54.00% 58.00%
Pension Plan, International [Member] | Pooled Investment Funds [Member]    
Allocation of pension plan assets    
Defined Benefit Plan, Actual Plan Asset Allocations 46.00% 42.00%