XML 131 R116.htm IDEA: XBRL DOCUMENT v3.22.4
Stock-Based Compensation Plans (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for future grants 17,217,552    
Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Unrecognized compensation cost $ 11    
Weighted average recognition period 1 year 7 months 6 days    
Intrinsic value of units outstanding $ 27    
Fair value of units vested $ 11 $ 22 $ 6
Shares granted (in shares) 5,280,429 2,100,126 4,123,544
Restricted Stock Units | Directors' Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 1 year    
Shares granted (in shares) 158,416 121,455  
Performance Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average recognition period 1 year 3 months 18 days    
Expiration period 10 years    
Options exercised (in shares) 0 777,429 33,501
Exercised (in dollars per share) $ 0 $ 6.11 $ 6.82
Stock Options | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Unrecognized compensation cost $ 1    
Employee Stock Purchase Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Employee stock purchase plan discounted offering price of commons stock 95.00%    
Shares purchased under the employee stock purchase plan (in shares) 381,229 182,899  
Shares reserved for future purchase under the employee stock purchase plan (in shares) 1,437,498