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COMMITMENTS AND CONTINGENCIES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2015
Jan. 31, 2014
COMMITMENTS AND CONTINGENCIES    
Historical claims rate, review period 5 years  
Unamortized extended warranty premiums (deferred revenue) $ 422us-gaap_ExtendedProductWarrantyAccrual $ 360us-gaap_ExtendedProductWarrantyAccrual
Change in Warranty Liability and Unearned Premiums    
Beginning of period balance 1,234de_ProductWarrantyAccrualAndUnearnedPremiums 1,164de_ProductWarrantyAccrualAndUnearnedPremiums
Payments (178)us-gaap_ProductWarrantyAccrualPayments (189)us-gaap_ProductWarrantyAccrualPayments
Amortization of premiums received (41)de_AmortizationOfExtendedProductWarrantyPremiumsReceived (28)de_AmortizationOfExtendedProductWarrantyPremiumsReceived
Accruals for warranties 181de_ProductWarrantyAccruals 185de_ProductWarrantyAccruals
Premiums received 45de_ExtendedProductWarrantyPremiumsReceived 46de_ExtendedProductWarrantyPremiumsReceived
Foreign exchange (24)us-gaap_ProductWarrantyAccrualCurrencyTranslationIncreaseDecrease (6)us-gaap_ProductWarrantyAccrualCurrencyTranslationIncreaseDecrease
End of period balance $ 1,217de_ProductWarrantyAccrualAndUnearnedPremiums $ 1,172de_ProductWarrantyAccrualAndUnearnedPremiums