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Investments in Non-Consolidated Companies (Details)
Dec. 31, 2019
Equity Method Investee Gulf Sulphur Services  
Schedule of Equity Method Investments  
Equity Method Investment, Ownership Percentage 50.00%
River Bend Ag  
Schedule of Equity Method Investments  
Equity Method Investment, Ownership Percentage 50.00%
I F C  
Schedule of Equity Method Investments  
Equity Method Investment, Ownership Percentage 45.00%
MWSPC  
Schedule of Equity Method Investments  
Equity Method Investment, Ownership Percentage 25.00%
Proportion of assets represented by MWSPC 81.00%
Proportion of liabilities represented by MWSPC 76.00%
Canpotex  
Schedule of Equity Method Investments  
Equity Method Investment, Ownership Percentage 36.20%