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Financing Arrangements - Short-term Debt (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Jan. 07, 2020 USD ($)
Short-term Debt [Line Items] |  |  |  |
Short-term debt | $ 847.1 | $ 399.7 |  |
Inventory Financing Arrangement, Maximum Amount |  |  |  | $ 625.0
Inventory Financing Arrangement, Maximum Borrowing Capacity, Percentage | 0.90 |  |  |
Proceeds From Inventory Financing Arrangements | $ 2,004.5 | 601.4 | $ 1,348.8 |
Structured accounts payable arrangements | 402.3 | 399.9 |  |
Servicing Liability | 0.0 | 0.0 |  |
Mosaic Credit Facility |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Line of Credit Facility, Commitment Fee Amount | $ 3.8 | 3.8 | $ 3.8 |
Maximum |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Duration Commercial Paper Note Program, Number Of Days | 397 days |  |  |
Duration Inventory Financing Arrangement, Number Of Days | 180 days |  |  |
Duration, Number of Days | 164 days |  |  |
Minimum |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Duration, Number of Days | 105 days |  |  |
Receivable Purchasing Agreement [Member] |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Receivable Purchasing Arrangements Sold | $ 430.7 | 1,300.0 |  |
Inventory Financing Arrangement |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Proceeds From Inventory Financing Arrangements | 199.5 | 0.0 |  |
Receivable Purchasing Agreement [Domain] |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Short-term Debt, Maximum Amount Outstanding During Period | 600.0 |  |  |
Commercial Paper |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Commerical Paper Note Program, Maximum Amount | 2,500.0 |  |  |
Commercial Paper | $ 609.2 | $ 399.5 |  |
Debt, Weighted Average Interest Rate | 4.74% | 5.62% |  |
Remaining Average Term, Number of Days | 10 days | 9 days |  |
Mosaic Credit Facility |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Short-term debt | $ 0.0 |  |  |
Structured Accounts Payable Arrangement |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Financing Interest Expense | $ 22.9 |  |  |

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