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Summary of Significant Accounting Policies (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
North America
Dec. 31, 2012
North America
Dec. 31, 2011
North America
Dec. 31, 2013
South America
Dec. 31, 2012
South America
Dec. 31, 2013
Asia Pacific
Dec. 31, 2012
Asia Pacific
Dec. 31, 2013
EMEA
Dec. 31, 2012
EMEA
Carrying amount of goodwill                      
Balance at the beginning of the period $ 557 $ 562 $ 278 $ 278 $ 278 $ 95 $ 101 $ 104 $ 106 $ 80 $ 77
Impairment charges   (2)             (2)    
Currency translation (22) (3)       (17) (6) (7)   2 3
Goodwill before impairment charges 657 679 279 279   78 95 218 225 82 80
Accumulated impairment charges (122) (122) (1) (1)       (121) (121)    
Balance at the end of the period $ 535 $ 557 $ 278 $ 278 $ 278 $ 78 $ 95 $ 97 $ 104 $ 82 $ 80