v3.6.0.2
Fair Value Measurement (Schedule Of Acquisition-Related Contingent Consideration) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]      
Contingent consideration arrangements, range of outcomes, value, low $ 0    
Contingent consideration arrangements, range of outcomes, value, high 766    
Contingent consideration 129 $ 121  
Acquisition-Related Contingent Consideration [Roll Forward]      
Milestone payments 60 50 $ 0
Acquisition Related Contingent Consideration [Member]      
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]      
Contingent consideration 153    
Acquisition Related Contingent Consideration [Member] | Level 3 [Member]      
Acquisition-Related Contingent Consideration [Roll Forward]      
Balance at beginning of period (177)    
Milestone payments 60    
Changes in fair value (36)    
Balance at end of period $ (153) $ (177)  
Acquisition Related Contingent Consideration [Member] | Minimum [Member] | Level 3 [Member]      
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]      
Fair Value Inputs, Weighted Average Cost of Capital 10.00%    
Acquisition Related Contingent Consideration [Member] | Maximum [Member] | Level 3 [Member]      
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]      
Fair Value Inputs, Cost of Debt 4.70%    
Fair Value Inputs, Weighted Average Cost of Capital 21.00%