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Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
shares in Millions, $ in Millions
Total
Revision of Prior Period Accounting Standards Update Adjustment [Member]
Common Stock [Member]
Additional Paid in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Retained Earnings (Loss) [Member]
Retained Earnings (Loss) [Member]
Revision of Prior Period Accounting Standards Update Adjustment [Member]
Total Company Stockholders' Equity [Member]
Total Company Stockholders' Equity [Member]
Revision of Prior Period Accounting Standards Update Adjustment [Member]
Noncontrolling Interests [Member]
Beginning Balance at Dec. 31, 2019 $ 7,846 $ (5) $ 4 $ 8,507 $ (1,423) $ 690 $ (5) $ 7,778 $ (5) $ 68
Beginning Balance, shares at Dec. 31, 2019     386              
Net loss (2,049)         (2,047)   (2,047)   (2)
Other comprehensive loss, net (232)       (232)     (232)    
Cash dividends, per common share (19)         (19)   (19)    
Stock-based compensation 27     27       27    
Common stock issued 1     1       1    
Common stock issued, shares     2              
Withholding taxes (17)     (17)       (17)    
Other 2                 2
Ending Balance at Mar. 31, 2020 5,554   $ 4 8,518 (1,655) (1,381)   5,486   68
Ending Balance, shares at Mar. 31, 2020     388              
Beginning Balance at Dec. 31, 2020 5,279   $ 4 8,591 (1,509) (1,876)   5,210   69
Beginning Balance, shares at Dec. 31, 2020     388              
Net loss (114)         (115)   (115)   1
Other comprehensive loss, net (21)       (21)     (21)    
Cash dividends, per common share 0                  
Stock-based compensation 20     20       20    
Common stock issued, shares     2              
Withholding taxes (13)     (13)       (13)    
Other (1)                 (1)
Ending Balance at Mar. 31, 2021 $ 5,150   $ 4 $ 8,598 $ (1,530) $ (1,991)   $ 5,081   $ 69
Ending Balance, shares at Mar. 31, 2021     390