XML 79 R54.htm IDEA: XBRL DOCUMENT v3.10.0.1
Capital Stock (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Capital Stock [Line Items]      
Common and Preferred Stock, shares authorized (in shares) 1,000,500,000    
Preferred Stock, Shares Authorized 500,000    
Preferred stock, par per share $ 1    
Common stock, authorized (in shares) 1,000,000,000    
Common stock, par value (in dollars per share) $ 0.10 $ 0.10  
Shares repurchased (in shares) 1,900,000    
Repurchase and retirement of shares of common stock $ 300    
Remaining shares authorized to be repurchased $ 1,340    
Capital shares reserved for future issuance 33,000,000 37,000,000  
Aggregate intrinsic value of options exercised $ 247 $ 184 $ 128
Options exercised during period, exercise price range, lower range limit $ 38.88    
Options exercised during period, exercise price range, upper range limit $ 169.42    
Compensation cost not yet recognized $ 99    
Compensation cost not yet recognized, period for recognized 1 year 6 months    
Restricted Stock Units (RSUs)      
Capital Stock [Line Items]      
Compensation cost not yet recognized $ 63    
Compensation cost not yet recognized, period for recognized 1 year    
Weighted average grant date fair value, Granted (in dollars per share) $ 150.23 $ 117.44  
Shares vested during the period $ 47    
Performance Stock Units (PSUs)      
Capital Stock [Line Items]      
Compensation cost not yet recognized $ 15    
Compensation cost not yet recognized, period for recognized 1 year    
Weighted average grant date fair value, Granted (in dollars per share) $ 153.67    
Shares vested during the period $ 0    
Employee Stock Purchase Plans      
Capital Stock [Line Items]      
Percentage of closing stock price under ESPP 95.00%    
Shares issued under the ESPP 168,626 163,415