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Post Retirement Benefit Plans - Fair Value of the Pension Plans Investments (Detail) - USD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2015
Oct. 31, 2014
Change in plan assets:    
Balance at beginning of year $ 650.8 $ 621.2
Actual return on plan assets 25.4 62.6
Expenses paid (2.7) (2.5)
Plan participant contributions 0.2 0.3
Foreign currency impact (27.3) (10.0)
Employer contributions 8.2 15.5
Benefits paid (29.9) (36.3)
Balance at end of year 624.7 650.8
USA [Member]    
Change in plan assets:    
Balance at beginning of year 325.6 301.8
Actual return on plan assets (0.9) 29.8
Expenses paid (2.1) (1.2)
Employer contributions 5.0 11.9
Benefits paid (16.5) (16.7)
Balance at end of year 311.1 325.6
United Kingdom [Member] | Non-United States [Member]    
Change in plan assets:    
Balance at beginning of year 202.7 198.9
Actual return on plan assets 21.8 15.7
Expenses paid (0.7) (1.1)
Foreign currency impact (10.6) (0.3)
Employer contributions 2.5 1.9
Benefits paid (7.3) (12.4)
Balance at end of year 208.4 202.7
Netherlands [Member] | Non-United States [Member]    
Change in plan assets:    
Balance at beginning of year 107.8 106.5
Actual return on plan assets 3.9 15.8
Expenses paid 0.2  
Plan participant contributions 0.2 0.3
Foreign currency impact (14.2) (8.7)
Benefits paid (5.2) (6.1)
Balance at end of year 92.7 107.8
Other International [Member] | Non-United States [Member]    
Change in plan assets:    
Balance at beginning of year 14.7 14.0
Actual return on plan assets 0.6 1.3
Expenses paid (0.1) (0.2)
Foreign currency impact (2.5) (1.0)
Employer contributions 0.7 1.7
Benefits paid (0.9) (1.1)
Balance at end of year $ 12.5 $ 14.7