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Consolidated Statements of Stockholders' Equity - 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, 2018 $ 13,889   $ 4 $ 8,390 $ (1,437) $ 6,862   $ 13,819   $ 70
Begining Balance, shares at Dec. 31, 2018     383              
Net loss (6,093)         (6,095)   (6,095)   2
Other comprehensive income (loss) 14       14     14    
Cash dividends, per common share $ (77)         $ (77)   $ (77)    
Accounting Standards Update [Extensible List] us-gaap:AccountingStandardsUpdate201802Member         us-gaap:AccountingStandardsUpdate201802Member   us-gaap:AccountingStandardsUpdate201802Member    
Stock-based compensation $ 137     137       $ 137    
Stock-based compensation, shares     3              
Withholding taxes (20)     (20)       (20)    
Other (4)                 (4)
Ending Balance at Dec. 31, 2019 7,846 $ (5) $ 4 8,507 (1,423) $ 690 $ (5) 7,778 $ (5) 68
Ending Balance, shares at Dec. 31, 2019     386              
Net loss (2,537)         (2,542)   (2,542)   5
Other comprehensive income (loss) (86)       (86)     (86)    
Cash dividends, per common share $ (19)         $ (19)   $ (19)    
Accounting Standards Update [Extensible List] us-gaap:AccountingStandardsUpdate201802Member         us-gaap:AccountingStandardsUpdate201802Member   us-gaap:AccountingStandardsUpdate201802Member    
Stock-based compensation $ 104     104       $ 104    
Stock-based compensation, shares     2              
Withholding taxes (20)     (20)       (20)    
Other (4)                 (4)
Ending Balance at Dec. 31, 2020 5,279   $ 4 8,591 (1,509) $ (1,876)   5,210   69
Ending Balance, shares at Dec. 31, 2020     388              
Net loss (245)         (250)   (250)   5
Other comprehensive income (loss) (37)       (37)     (37)    
Cash dividends, per common share $ (20)         $ (20)   $ (20)    
Accounting Standards Update [Extensible List] us-gaap:AccountingStandardsUpdate201802Member         us-gaap:AccountingStandardsUpdate201802Member   us-gaap:AccountingStandardsUpdate201802Member    
Stock-based compensation $ 78     78       $ 78    
Stock-based compensation, shares     3              
Stock issued in acquisition 29     29       29    
Stock issued in acquisition, shares     2              
Withholding taxes (13)     (13)       (13)    
Other (7)                 (7)
Ending Balance at Dec. 31, 2021 $ 5,064   $ 4 $ 8,685 $ (1,546) $ (2,146)   $ 4,997   $ 67
Ending Balance, shares at Dec. 31, 2021     393