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Consolidated Statement of Equity (Unaudited) - USD ($)
shares in Millions, $ in Millions
Total
Common Stock
Capital in Excess of Par Value
Accumulated Deficit
AOCI Attributable to Parent [Member]
Common Stock Held in Treasury
Total Stockholder's Equity
Noncontrolling Interests
Balance (in shares) at Dec. 31, 2019   1,582       131    
Balance at Dec. 31, 2019 $ 17,448 $ 158 $ 25,830 $ (12,280) $ (676) $ (3,734) $ 9,298 $ 8,150
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Exercised and issued stock-based awards (in shares) 1              
Exercised and issued stock-based awards $ 1   1       1  
Stock-based compensation, including the tender of shares 24   29     $ (5) 24  
Contributions from noncontrolling interests 32   15       15 17
Net loss attributable to common stockholders (491)     (491)     (491)  
Net income (loss) attributable to noncontrolling interests (58)             (58)
Other comprehensive income 7       8   8 (1)
Balance (in shares) at Mar. 31, 2020   1,583       131    
Balance at Mar. 31, 2020 16,963 $ 158 25,875 (12,771) (668) $ (3,739) 8,855 8,108
Balance (in shares) at Dec. 31, 2020   1,590       132    
Balance at Dec. 31, 2020 $ 18,668 $ 159 26,037 (11,681) (583) $ (3,758) 10,174 8,494
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Exercised and issued stock-based awards (in shares) 7              
Exercised and issued stock-based awards $ 106 $ 1 105       106  
Stock-based compensation, including the tender of shares (in shares)           1    
Stock-based compensation, including the tender of shares 7   29     $ (19) 10 (3)
Contributions from noncontrolling interests 41   20       20 21
Dividends (204)   (111)       (111) (93)
Net loss attributable to common stockholders 718     718     718  
Net income (loss) attributable to noncontrolling interests 235             235
Other comprehensive income 2       3   3 (1)
Balance (in shares) at Mar. 31, 2021   1,597       133    
Balance at Mar. 31, 2021 $ 19,573 $ 160 $ 26,080 $ (10,963) $ (580) $ (3,777) $ 10,920 $ 8,653