Organization and Nature of Business	3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Nature of Business	Organization and Nature of Business The Mosaic Company (“Mosaic,” and, with its consolidated subsidiaries, “we,” “us,” “our,” or the “Company”) produces and markets concentrated phosphate and potash crop nutrients. We conduct our business through wholly and majority owned subsidiaries and businesses in which we own less than a majority or a non-controlling interest, including consolidated variable interest entities and investments accounted for by the equity method. We are organized into the following business segments: •Our Phosphate business segment owns and operates mines and production facilities in Florida which produce concentrated phosphate crop nutrients and phosphate-based animal feed ingredients, and processing plants in Louisiana which produce concentrated phosphate crop nutrients. The Phosphate segment includes our 75% interest in the Miski Mayo Phosphate Mine (“Miski Mayo”) in Peru. These results are consolidated in the Phosphate segment. •Our Potash business segment owns and operates potash mines and production facilities in Canada and the U.S. which produce potash-based crop nutrients, animal feed ingredients and industrial products. Potash sales include domestic and international sales. We are a member of Canpotex, Limited (“Canpotex”), an export association of Canadian potash producers through which we sell our Canadian potash outside the U.S. and Canada. •Our Mosaic Fertilizantes business segment includes five phosphate rock mines and four phosphate chemical plants. and a potash mine. The segment also includes our distribution business in South America, which consists of sales offices, crop nutrient blending and bagging facilities, port terminals and warehouses in Brazil and Paraguay. We also have a majority interest in Fospar S.A., which owns and operates a single superphosphate granulation plant and a deep-water port and throughput warehouse terminal facility in Brazil. It also includes the results of Mosaic Biosciences sales in Brazil. Intersegment eliminations, unrealized mark-to-market gains/losses on derivatives and investment in equity securities of Saudi Arabian Mining Company (“Ma’aden”), debt expenses, the results of the China and India distribution businesses and Mosaic Biosciences sales in China, India and North America are included within Corporate, Eliminations and Other.

The Mosaic Company (“Mosaic,” and, with its consolidated subsidiaries, “we,” “us,” “our,” or the “Company”) produces and markets concentrated phosphate and potash crop nutrients. We conduct our business through wholly and majority owned subsidiaries and businesses in which we own less than a majority or a non-controlling interest, including consolidated variable interest entities and investments accounted for by the equity method.

•Our Phosphate business segment owns and operates mines and production facilities in Florida which produce concentrated phosphate crop nutrients and phosphate-based animal feed ingredients, and processing plants in Louisiana which produce concentrated phosphate crop nutrients. The Phosphate segment includes our 75% interest in the Miski Mayo Phosphate Mine (“Miski Mayo”) in Peru. These results are consolidated in the Phosphate segment.

•Our Potash business segment owns and operates potash mines and production facilities in Canada and the U.S. which produce potash-based crop nutrients, animal feed ingredients and industrial products. Potash sales include domestic and international sales. We are a member of Canpotex, Limited (“Canpotex”), an export association of Canadian potash producers through which we sell our Canadian potash outside the U.S. and Canada.

•Our Mosaic Fertilizantes business segment includes five phosphate rock mines and four phosphate chemical plants. and a potash mine. The segment also includes our distribution business in South America, which consists of sales offices, crop nutrient blending and bagging facilities, port terminals and warehouses in Brazil and Paraguay. We also have a majority interest in Fospar S.A., which owns and operates a single superphosphate granulation plant and a deep-water port and throughput warehouse terminal facility in Brazil. It also includes the results of Mosaic Biosciences sales in Brazil.

Intersegment eliminations, unrealized mark-to-market gains/losses on derivatives and investment in equity securities of Saudi Arabian Mining Company (“Ma’aden”), debt expenses, the results of the China and India distribution businesses and Mosaic Biosciences sales in China, India and North America are included within Corporate, Eliminations and Other.