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Supplemental Cash Flow Information (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Supplemental Cash Flow Information    
Interest paid in cash $ 81 $ 69
Non-U.S. Income taxes paid in cash 33 31
Senior Notes 6.875%, due 2017 (300 million EUR)
   
Debt Instrument    
Interest paid note repurchase premiums $ 9  
Interest rate, stated percentage 6.875%