Annual report pursuant to Section 13 and 15(d)

SHARE-BASED COMPENSATION - Narrative (Details)

v3.22.0.1
SHARE-BASED COMPENSATION - Narrative (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Additional shares authorized (in shares) 30    
Shares authorized (in shares) 63    
Shares available for grant 31    
Tax benefit realized from exercise of options $ 2 $ 1 $ 3
Granted (in USD per share) $ 15.78 $ 8.90 $ 13.91
Total fair value of awards vested $ 135 $ 86 $ 69
Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 4 years    
Total intrinsic value of options exercised $ 10 6 16
Cash received for exercises of stock options 2 $ 1 $ 2
Total unrecognized compensation cost related to nonvested awards $ 118    
Cost not yet recognized period for recognition 2 years 3 months 18 days    
TCF options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 5 years    
Awards expiration period 10 years    
Performance Share Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Granted (in USD per share) $ 16.08