XML 118 R103.htm IDEA: XBRL DOCUMENT v3.22.4
Stock Based Compensation - Restricted share and Restricted Share Units and Performance Vested Restricted Share Units (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Restricted share and Restricted Share Units and Performance Vested Restricted Share Units      
Shares issued 500,000 600,000 900,000
Unrecognized compensation cost of unvested stock options, restricted shares, restricted share units and performance vested restricted share units (in dollars) | $ $ 20    
Weighted average period during which unrecognized compensation costs would be recognized 2 years    
Restricted Shares and Restricted Share Units      
Restricted share and Restricted Share Units and Performance Vested Restricted Share Units      
Nonvested, beginning balance (in shares) 1,797,000    
Granted (in shares) 980,000    
Vested (in shares) (729,000)    
Forfeited (in shares) (59,000)    
Nonvested, ending balance (in shares) 1,989,000 1,797,000  
Nonvested, Beginning balance (in dollars per share) | $ / shares $ 12.83    
Granted (in dollars per share) | $ / shares 11.92 $ 12.83 $ 12.54
Vested (in dollars per share) | $ / shares 14.15    
Forfeited (in dollars per share) | $ / shares 11.64    
Nonvested, Closing balance (in dollars per share) | $ / shares $ 11.94 $ 12.83  
Total fair value of shares issued (in dollars) | $ $ 10 $ 9 $ 9
Restricted Shares and Restricted Share Units | Shares granted to employees after March 21, 2005 | Minimum      
Restricted share and Restricted Share Units and Performance Vested Restricted Share Units      
Fair value of restricted shares, amortization period 1 year    
Restricted Shares and Restricted Share Units | Shares granted to employees after March 21, 2005 | Maximum      
Restricted share and Restricted Share Units and Performance Vested Restricted Share Units      
Fair value of restricted shares, amortization period 3 years    
Restricted Share Units | Shares granted to directors after 2007      
Restricted share and Restricted Share Units and Performance Vested Restricted Share Units      
Shares of common stock granted vesting period 1 year    
Restricted Share Units | Shares granted to employees after 2010      
Share-based Compensation Arrangement by Share-based Payment Award      
Common stock distribution ratio 1    
Performance Vested Restricted Share Units      
Restricted share and Restricted Share Units and Performance Vested Restricted Share Units      
Nonvested, beginning balance (in shares) 2,935,000    
Granted (in shares) 1,241,000    
Forfeited (in shares) (710,000)    
Nonvested, ending balance (in shares) 3,466,000 2,935,000  
Nonvested, Beginning balance (in dollars per share) | $ / shares $ 12.70    
Granted (in dollars per share) | $ / shares 14.56 $ 12.70 $ 14.63
Forfeited (in dollars per share) | $ / shares 18.48    
Nonvested, Closing balance (in dollars per share) | $ / shares $ 12.19 $ 12.70  
Shares of common stock holder may receive, per unit of vested units 2    
Shares issued 0