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Related Party Transactions (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Related Party Transaction [Line Items] |  |  |
Indemnification asset | $ 24.7 |  | $ 20.9
Percent of joint venture production Mosaic expects to market | 25.00% |  |
Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Transactions with non-consolidated companies included in cost of sales | $ 260.8 | $ 396.8 |
Revenues | 236.6 | 445.9 |
Amounts due to related parties | 0.9 |  | $ 0.8
Equity Method Investee |  |  |
Related Party Transaction [Line Items] |  |  |
Revenues | $ 3.3 | $ 5.7 |

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