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FAIR VALUE MEASUREMENTS (Details 4) (USD $)
In Millions, unless otherwise specified
9 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Jul. 31, 2014
Jul. 31, 2013
Jul. 31, 2014
Fair Value, Nonrecurring Measurements
Level 3
Jul. 31, 2013
Fair Value, Nonrecurring Measurements
Level 3
Oct. 31, 2013
Fair Value, Nonrecurring Measurements
Level 3
Jul. 31, 2014
Fair Value, Nonrecurring Measurements
Level 3
Water Operations
Jan. 31, 2014
Fair Value, Nonrecurring Measurements
Level 3
Water Operations
Cost of Sales
Jul. 31, 2013
Fair Value, Nonrecurring Measurements
Level 3
Water Operations
Cost of Sales and Selling, Administrative, and General Expenses
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis                
Property and equipment - net       $ 39 $ 36      
Losses, Property and equipment - net     26 43        
Other intangible assets - net       2        
Losses, Other intangible assets - net       7        
Losses, Assets held for sale - Water operations           36    
Asset impairment charges                
Non-cash charge, pretax 62.3 50.4         26.0 50.0
Non-cash charge, after-tax             $ 26 $ 44