XML 50 R39.htm IDEA: XBRL DOCUMENT v3.20.2
STOCK-BASED EMPLOYEE COMPENSATION - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock-based compensation expense $ 80   $ 79 $ 163 $ 232  
Aggregate fair value of performance share units and restricted stock units vested during the period 12     345    
Aggregate grant-date fair value       79    
Performance Share Units | 2018 Grants            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Incremental fair value as a result of modification of share-based award(s)           $ 11
Restricted Stock Units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Aggregate grant-date fair values 19     369    
Restricted Stock Units and Performance Share Units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total unrecognized estimated compensation expense, unvested share-based awards 459     $ 459    
Total future compensation cost related to unvested share-based awards, expected period of recognition       2 years    
Stock Options            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total unrecognized estimated compensation expense, unvested share-based awards $ 67     $ 67    
Total future compensation cost related to unvested share-based awards, expected period of recognition       2 years 4 months 24 days    
Adjustment for change in estimated probable outcome at the end of the performance period | Performance Share Units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock-based compensation expense   $ (73)