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Other Operating-Net (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Other Operating-Net        
Insurance proceeds   $ 0 $ (37) $ (37)
Loss (gain) on disposal of property, plant and equipment—net(2)   3 15 (40)
Gain on sale of emission credits   (29) 0 0
Loss (gain) on foreign currency transactions(3)   6 5 (1)
Loss on embedded derivative   1 3 4
Other       1
Other(5)   (20) (3)  
Other operating—net   (39) (17) (73)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gain (Loss) on Disposition of Property Plant Equipment $ 45 (3) $ (15) $ 40
Nitrogen Complex        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gain (Loss) on Disposition of Property Plant Equipment   $ 9