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Other Income (Expense), Net (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Other Income (Expense), Net    
Income from cash and cash investments $ 1 $ 1
Income from financial investments (1) 10
Other items, net (3) 2
Total other, net (3) 13
Currency (losses) gains included in other items, net $ (2) $ 3