XML 108 R96.htm IDEA: XBRL DOCUMENT v3.19.2
Stock-based Employee Incentive Plans - Share Based Compensation Expense (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Nov. 28, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Stock-based compensation expense $ 280 $ 234 $ 222    
Shares issued employee stock purchase plan (in shares) 2,000,000        
Average purchase price of shares purchased (in dollars per share) $ 61.40        
Stock Appreciation Rights (SARs)          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Award vesting period 3 years        
Accelerated compensation cost $ 14        
Expiration period 10 years        
Employee Stock Options and Stock Appreciation Rights          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Stock-based compensation expense $ 70 65 79    
Compensation not yet recognized, options $ 58        
Compensation not yet recognized, period for recognition 1 year 2 months 12 days        
Expected to vest (in shares) 11,000,000        
Restricted Stock Units and Performance Share Units          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Stock-based compensation expense $ 210 169 143    
Compensation not yet recognized, other than options $ 491        
Compensation not yet recognized, period for recognition 2 years 3 days        
Vested in period, fair value $ 262 $ 175 $ 218    
Employee Stock Option          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Award vesting period 4 years        
Expiration period 7 years        
Restricted Stock          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Accelerated compensation cost $ 27        
Employee Stock          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Number of shares authorized 30,000,000        
Number of shares available for grant 9,000,000        
Purchase price of common stock percent 90.00%     85.00%  
Minimum          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Award vesting period 3 years        
Maximum          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Award vesting period 5 years        
CVS Health 2017 Incentive Compensation Plan          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Number of shares authorized 32,000,000        
Number of shares available for grant 26,000,000        
Aetna Inc 2010 Stock Incentive Plan          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Number of shares authorized         32,000,000
Number of shares available for grant 32,000,000        
Capital shares reserved for future issuance         22,000,000