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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
shares in Millions, $ in Millions
Total
Cumulative Effect, Period of Adoption, Adjustment
Class A Common Stock
Class A Common Stock
Additional Paid-in- Capital
Retained Earnings
Retained Earnings
Cumulative Effect, Period of Adoption, Adjustment
Treasury Stock, at Cost
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
Cumulative Effect, Period of Adoption, Adjustment
Beginning balance at Dec. 31, 2018 $ 2,225 $ 1 $ 5 $ 5,814 $ 8,982 $ 1 $ (12,185) $ (391) $ 0
Beginning balance (in shares) at Dec. 31, 2018     339.1            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Net income (loss) 1,273       1,273        
Other comprehensive income 30             30  
Dividends (612)       (612)        
Stock-based compensation plans (in shares)     2.2            
Stock-based compensation plans 46     (14)     60    
Purchase of treasury stock (2,260)           (2,260)    
Purchase of treasury stock (in shares)     (17.3)            
Ending balance at Dec. 31, 2019 703 $ (15) $ 5 5,800 9,644 $ (15) (14,385) (361)  
Ending balance (in shares) at Dec. 31, 2019     324.0            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Net income (loss) (267)       (267)        
Other comprehensive income 226             226  
Dividends (156)       (156)        
Stock-based compensation plans (in shares)     1.4            
Stock-based compensation plans 89     51     38    
Purchase of treasury stock (150)           (150)    
Purchase of treasury stock (in shares)     (1.0)            
Ending balance at Dec. 31, 2020 430   $ 5 5,851 9,206   (14,497) (135)  
Ending balance (in shares) at Dec. 31, 2020     324.4            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Net income (loss) 1,099       1,099        
Other comprehensive income (207)             (207)  
Stock-based compensation plans (in shares)     1.9            
Stock-based compensation plans 92     41     51    
Ending balance at Dec. 31, 2021 $ 1,414   $ 5 $ 5,892 $ 10,305   $ (14,446) $ (342)  
Ending balance (in shares) at Dec. 31, 2021 326.3   326.3 [1]            
[1] Our restated certificate of incorporation authorizes 800 million shares of our common stock, with a par value of $0.01 per share and 10 million shares of preferred stock, without par value. At year-end 2021, we had 326.3 million of these authorized shares of our common stock and no preferred stock outstanding.