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Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Jun. 30, 2021
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | $ 3,922.3 | $ 2,297.1 |
Potash Crop Nutrients | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 1,194.8 | 557.5 |
Phosphate Crop Nutrients | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 958.8 | 666.6 |
Crop Nutrient Blends | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 553.0 | 314.7 |
Specialty Products | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 616.4 | 399.4 |
Phosphate Rock | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 27.1 | 16.9 |
Other Product Types | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 572.2 | 342.0 |
Product |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 3,922.3 | 2,297.1 |
Brazil |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Canpotexsalesvolumesbygeographypercentage |  |  | 30.00%
Brazil | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 1,448.5 | 767.8 |
Canpotex [Member] | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 492.5 | 150.2 |
Canada | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 230.5 | 190.4 |
India |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Canpotexsalesvolumesbygeographypercentage |  |  | 6.00%
India | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 0.0 | 29.5 |
China |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Canpotexsalesvolumesbygeographypercentage |  |  | 11.00%
China | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 220.8 | 125.7 |
Australia | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 24.9 | 23.8 |
Mexico | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 67.9 | 50.2 |
Colombia | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 32.2 | 27.8 |
Paraguay | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 35.0 | 19.0 |
Japan | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 26.5 | 21.7 |
Argentina | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 53.6 | 17.3 |
Honduras | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 3.4 | 2.8 |
Thailand | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 2.3 | 3.1 |
Other Foreign |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Canpotexsalesvolumesbygeographypercentage |  |  | 39.00%
Other Foreign | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 20.2 | 13.2 |
Total Foreign | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 2,660.5 | 1,449.1 |
United States | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | 1,261.8 | 848.0 |
DOMINICAN REPUBLIC | Product | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net Sales | $ 2.2 | $ 6.6 |
INDONESIA |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Canpotexsalesvolumesbygeographypercentage |  |  | 1400.00%

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