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Goodwill and Other Intangible Assets (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Goodwill          
Goodwill, Beginning Balance     $ 2,091    
Effect of exchange rate changes     (3)    
Goodwill, Ending Balance $ 2,088   2,088   $ 2,091
U.K. goodwill impairment 0 $ 259 0 $ 259 285
Ammonia(1)          
Goodwill          
Goodwill, Beginning Balance     579    
Effect of exchange rate changes     (3)    
Goodwill, Ending Balance 576   576   579
U.K. goodwill impairment     9    
Granular Urea          
Goodwill          
Goodwill, Beginning Balance     828    
Effect of exchange rate changes     0    
Goodwill, Ending Balance 828   828   828
UAN          
Goodwill          
Goodwill, Beginning Balance     576    
Effect of exchange rate changes     0    
Goodwill, Ending Balance 576   576   576
AN(1)          
Goodwill          
Goodwill, Beginning Balance     69    
Effect of exchange rate changes     0    
Goodwill, Ending Balance 69   69   69
U.K. goodwill impairment     241    
Other(1)          
Goodwill          
Goodwill, Beginning Balance     39    
Effect of exchange rate changes     0    
Goodwill, Ending Balance $ 39   39   $ 39
U.K. goodwill impairment     $ 35