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v3.20.4

Goodwill (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Goodwill [Line Items] |  |  |
Beginning balance | $ 1,156.9 | $ 1,707.5 |
Goodwill, Foreign Currency Translation Gain (Loss) | 16.1 | 38.0 |
Ending balance | 1,173.0 | 1,156.9 | $ 1,707.5
Goodwill, Impairment Loss | 0.0 | (588.6) | 0.0
Goodwill determined to be tax deductible | $ 3.6 |  |
Potash Segment |  |  |
Goodwill [Line Items] |  |  |
Percentage of fair value in excess of carrying amount | 20.90% |  |
Beginning balance | $ 1,039.8 | 1,000.4 |
Goodwill, Foreign Currency Translation Gain (Loss) | 23.4 | 39.4 |
Ending balance | 1,063.2 | 1,039.8 | 1,000.4
Goodwill, Impairment Loss |  | 0.0 |
Mosaic Fertilizantes |  |  |
Goodwill [Line Items] |  |  |
Beginning balance | 105.0 | 106.4 |
Goodwill, Foreign Currency Translation Gain (Loss) | (7.3) | (1.4) |
Ending balance | 97.7 | 105.0 | 106.4
Goodwill, Impairment Loss |  | 0.0 |
Corporate Eliminations And Other Segment |  |  |
Goodwill [Line Items] |  |  |
Beginning balance | 12.1 | 12.1 |
Goodwill, Foreign Currency Translation Gain (Loss) | 0.0 | 0.0 |
Ending balance | 12.1 | 12.1 | 12.1
Goodwill, Impairment Loss |  | 0.0 |
Phosphates Segment |  |  |
Goodwill [Line Items] |  |  |
Beginning balance | 0.0 | 588.6 |
Goodwill, Foreign Currency Translation Gain (Loss) | 0.0 | 0.0 |
Ending balance | $ 0.0 | 0.0 | $ 588.6
Goodwill, Impairment Loss |  | $ (588.6) |
Minimum |  |  |
Goodwill [Line Items] |  |  |
Terminal Value Growth Rate | 2.00% |  |
WACC fifty basis point decrease | Potash Segment |  |  |
Goodwill [Line Items] |  |  |
Percentage of fair value in excess of carrying amount | 26.80% |  |
WACC twenty-five basis point decrease | Potash Segment |  |  |
Goodwill [Line Items] |  |  |
Percentage of fair value in excess of carrying amount | 23.90% |  |
WACC twenty-five basis point increase | Potash Segment |  |  |
Goodwill [Line Items] |  |  |
Percentage of fair value in excess of carrying amount | 17.80% |  |
WACC fifty basis point increase | Potash Segment |  |  |
Goodwill [Line Items] |  |  |
Percentage of fair value in excess of carrying amount | 14.70% |  |

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