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COMBINED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Statement Of Income And Comprehensive Income [Abstract]    
Net income $ 41 $ 41
Other comprehensive income (loss):    
Currency translation adjustments (17) (18)
Comprehensive income $ 24 $ 23