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Financing Arrangements - Mosaic Credit Facility (Details)
 12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Aug. 19, 2021
USD ($)
Debt Instrument        
The Mosaic Credit Facility amount of revolving credit loans       $ 2,500,000,000
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 $ 50,000,000.0      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.15% 0.15% 0.15%  
Short-term Debt        
Debt Instrument        
Letters of Credit Outstanding, Amount $ 63,800,000      
Mosaic Credit Facility        
Debt Instrument        
Letters of Credit Outstanding, Amount 0.0 $ 10,500,000    
Net available borrowings for revolving loans under the Mosaic Credit Facility 2,500,000,000 2,490,000,000    
Line of Credit Facility, Commitment Fee Amount $ 3,800,000 $ 3,800,000 $ 3,800,000