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Financial Instruments and Commodity Contracts (Narrative) (Details)
In Millions, unless otherwise specified
3 Months Ended 1 Months Ended
Jan. 31, 2013
USD ($)
Oct. 31, 2012
USD ($)
Jan. 31, 2013
Foreign Exchange Contract [Member]
EUR (€)
Oct. 31, 2012
Foreign Exchange Contract [Member]
EUR (€)
Jan. 31, 2013
Interest Rate Contract [Member]
USD ($)
Oct. 31, 2012
Interest Rate Contract [Member]
USD ($)
Oct. 31, 2009
Call Option [Member]
Convertible Subordinated Debt [Member]
Manufacturing Operations [Member]
USD ($)
Jan. 31, 2013
Steel Forward Contracts [Member]
Commodity Contract [Member]
USD ($)
Oct. 31, 2012
Steel Forward Contracts [Member]
Commodity Contract [Member]
USD ($)
Jan. 31, 2013
Diesel Fuel Forward Contracts [Member]
Commodity Contract [Member]
USD ($)
Oct. 31, 2012
Diesel Fuel Forward Contracts [Member]
Commodity Contract [Member]
USD ($)
Jan. 31, 2013
Contract 1 [Member]
Foreign Exchange Contract [Member]
BRL
Jan. 31, 2013
Contract 1 [Member]
Foreign Exchange Contract [Member]
CAD
Jan. 31, 2013
Contract 2 [Member]
Foreign Exchange Contract [Member]
BRL
Jan. 31, 2013
Contract 2 [Member]
Foreign Exchange Contract [Member]
CAD
Derivative [Line Items]                              
Payments for Derivative Instrument, Investing Activities             $ 125                
Derivative, Collateral, Obligation to Return Cash   1                          
Derivative, Notional Amount     14 25 10 39   38 61 3 3 51 50 58 50
Exposure to credit risk $ 2 $ 0