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Financing Arrangements - Mosaic Credit Facility (Details)
 12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Aug. 19, 2021
USD ($)
Nov. 18, 2016
USD ($)
Debt Instrument          
The Mosaic Credit Facility amount of revolving credit loans $ 2,500,000,000     $ 2,500,000,000 $ 2,200,000,000
A failure to pay principal or interest under any one item of other indebtedness in excess of $100 million, or breach or default under such indebtedness that permits the holders thereof to accelerate the maturity thereof, will result in a cross-default in the Mosaic Credit Line $ 100,000,000        
Debt Instrument, Covenant, Consolidated Capitalization Ratio, Minimum 0.65        
Debt Instrument, Covenant, Consolidated Capitalization Ratio, Maximum 1.0        
Debt Instrument, Covenant, Interest Coverage Ratio, Maximum $ 3.0        
Credit facility, interest coverage ratio, minimum 1.0        
Letters of Credit Outstanding, Amount 50,000,000        
Short-term Debt          
Debt Instrument          
Letters of Credit Outstanding, Amount 54,400,000        
Mosaic Credit Facility          
Debt Instrument          
Letters of Credit Outstanding, Amount 10,900,000 $ 10,900,000      
Net available borrowings for revolving loans under the Mosaic Credit Facility $ 2,490,000,000        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.15% 0.40% 0.40%    
Line of Credit Facility, Commitment Fee Amount $ 3,800,000 $ 7,000,000 $ 6,000,000