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COMMITMENTS AND CONTINGENCIES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Apr. 30, 2014
Apr. 30, 2013
Apr. 30, 2014
Apr. 30, 2013
COMMITMENTS AND CONTINGENCIES        
Historical claims rate, review period     5 years  
Unamortized extended warranty premiums (deferred revenue) $ 378 $ 325 $ 378 $ 325
Change in Warranty Liability and Unearned Premiums        
Beginning of period balance 1,172 1,091 1,164 1,025
Payments (177) (158) (366) (323)
Amortization of premiums received (32) (29) (59) (57)
Accruals for warranties 182 204 366 415
Premiums received 49 47 95 91
Foreign exchange 2 (3) (4) 1
End of period balance $ 1,196 $ 1,152 $ 1,196 $ 1,152