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STOCK-BASED COMPENSATION PLANS - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
STOCK-BASED COMPENSATION PLANS:      
Options outstanding (in shares) 375,000    
Weighted average exercise price of options (in dollars per share) $ 31.25    
Weighted average remaining contractual life of options 4 years    
Aggregate intrinsic value of options outstanding $ 0    
Stock Based Compensation Plans      
STOCK-BASED COMPENSATION PLANS:      
Compensation expense $ 60,000,000 $ 51,000,000 $ 33,000,000
ESPP      
STOCK-BASED COMPENSATION PLANS:      
Number of shares reserved for award (in shares) 4,200,000    
Compensation expense $ 2,000,000 3,000,000 1,000,000
Number of shares available for future grant (in shares) 1,097,156    
ESPP | Maximum      
STOCK-BASED COMPENSATION PLANS:      
Percentage of the fair market value of common stock as of the first day of the quarter or on last day of the quarter 85.00%    
RSAs      
STOCK-BASED COMPENSATION PLANS:      
Compensation expense $ 21,000,000 $ 23,000,000 $ 9,000,000
Unrecognized compensation expense $ 6,000,000    
Unrestricted shares granted (in shares) 693,019    
RSAs | LTIP      
STOCK-BASED COMPENSATION PLANS:      
Vesting period 2 years    
Percentage of restriction to be lapsed in year one from grant date   50.00%  
Percentage of restriction to be lapsed in year two from grant date     50.00%
Stock Grants | Non Employee Director      
STOCK-BASED COMPENSATION PLANS:      
Compensation expense $ 2,000,000 $ 1,000,000 $ 1,000,000
Unrestricted shares granted (in shares) 45,836 63,600 24,000
SARs      
STOCK-BASED COMPENSATION PLANS:      
Compensation expense $ 15,000,000 $ 6,000,000 $ 4,000,000
SARs term 10 years    
SAR's outstanding (in shares) 2,295,247 3,205,562  
SAR's remaining contractual life 7 years    
SARs | Minimum      
STOCK-BASED COMPENSATION PLANS:      
Vesting period 0 years    
SARs | Maximum      
STOCK-BASED COMPENSATION PLANS:      
Vesting period 4 years    
Stock Options      
STOCK-BASED COMPENSATION PLANS:      
Compensation expense $ 0 $ 0 0
SAR's outstanding intrinsic value 0    
401 (K) Plan      
STOCK-BASED COMPENSATION PLANS:      
Compensation expense relating to match $ 20,000,000 $ 19,000,000 $ 17,000,000
Number of shares reserved for matches (in shares) 7,000,000    
Number of shares available for future grants (in shares) 2,314,064    
Class A Common Stock | LTIP      
STOCK-BASED COMPENSATION PLANS:      
Number of shares reserved for award (in shares) 19,000,000    
Number of shares (including forfeited shares) available for future grants 7,099,237