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Note 20 - Financial Instruments (Details) - Derivatives in Cash Flow Hedging Relationships (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2012
Derivatives in Cash Flow Hedging Relationships [Abstract]    
Commodity contracts   $ 1
Commodity contracts $ (3) $ (5)