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Inventories - Inventory (Details) (USD $)
In Millions, unless otherwise specified
Apr. 30, 2015
Oct. 31, 2014
Inventory Disclosure [Abstract]    
Finished products $ 797us-gaap_InventoryFinishedGoodsNetOfReserves $ 880us-gaap_InventoryFinishedGoodsNetOfReserves
Work in process 85us-gaap_InventoryWorkInProcessNetOfReserves 50us-gaap_InventoryWorkInProcessNetOfReserves
Raw materials 363us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves 389us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves
Total inventories $ 1,245us-gaap_InventoryNet $ 1,319us-gaap_InventoryNet