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Financing Arrangements (Summary of the Contractual Maturities of Debt Including Current Maturities) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Maturities of Long-term Debt [Abstract]    
2014 $ 607  
2015 212  
2016 508  
2017 9  
2018 8  
Thereafter 1,109  
Long-term Debt $ 2,453 $ 2,454