v3.3.1.900
Fair Value Of Financial Instruments Unobservable Input Reconciliation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair value adjustment $ 7 $ 0 $ 0
Contingent Consideration liability      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Beginning of year 11 0  
Additions 25 11  
Payments 0 0  
Interest accretion 3 0  
Fair value adjustment (7) 0  
End of year $ 32 $ 11 $ 0