XML 144 R124.htm IDEA: XBRL DOCUMENT v3.10.0.1
Employee Incentive Plans - Strategic Performance Shares (Details)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2018
USD ($)
Employees
$ / shares
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2016
USD ($)
$ / shares
shares
Employee Incentive Plan Aggregate Disclosures [Line Items]      
Compensation cost | $ $ 180 $ 178 $ 128
Strategic Performance Shares [Member]      
Employee Incentive Plan Aggregate Disclosures [Line Items]      
Performance period 3 years    
Percent of shares subject to market conditions 50.00%    
Percent of shares subject to performance conditions 50.00%    
Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Nonvested, Roll Forward      
Outstanding - January 1 778 942 1,188
Awarded 221 275 286
Vested (269) (386) (494)
Forfeited (23) (53) (38)
Outstanding - December 31 707 778 942
Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Outstanding - January 1 | $ / shares $ 136.57 $ 109.14 $ 81.68
Awarded | $ / shares 197.51 150.06 139.05
Vested | $ / shares 121.57 78.91 60.15
Forfeited | $ / shares 158.16 138.19 112.7
Outstanding - December 31 | $ / shares $ 160.74 $ 136.57 $ 109.14
Employee Service Share-based Compensation, Additional Disclosures [Abstract]      
Shares of Cigna common stock distributed upon SPS vesting 380 476 768
Fair value of shares vested | $ $ 73 $ 70 $ 109
Number of employees holding share-based payment awards | Employees 1,500    
Related compensation expense to be recognized | $ $ 51    
Period over which compensation expense will be recognized 2 years    
Strategic Performance Shares [Member] | Minimum [Member]      
Employee Incentive Plan Aggregate Disclosures [Line Items]      
Percentage of original shares granted that may be awarded at end of performance period 0.00%    
Strategic Performance Shares [Member] | Maximum [Member]      
Employee Incentive Plan Aggregate Disclosures [Line Items]      
Percentage of original shares granted that may be awarded at end of performance period 200.00%