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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill [Line Items] |
Sensitivity Analysis WACC [Table Text Block] | Assuming that all other components of our fair value estimate remain unchanged, a change in the WACC would have the following effect on estimated fair values in excess of carrying values:
|  |  |  | Sensitivity Analysis - Percent of Fair Values in Excess of Carrying Values
|  | Excess at Current WACC |  | WACC Decreased by 50 Basis Points |  | WACC Decreased by 25 Basis Points |  | WACC Increased by 25 Basis Points |  | WACC Increased by 50 Basis Points
Potash Reporting Unit |  | 20.9% |  | 26.8% |  | 23.9% |  | 17.8% |  | 14.7%
Goodwill | The changes in the carrying amount of goodwill, by reporting unit, as of December 31, 2020 and 2019, are as follows:
(in millions) | Phosphates |  | Potash |  | Mosaic Fertilizantes |  | Corporate, Eliminations and Other | Total
Balance as of December 31, 2018 | $ | 588.6 |  |  | $ | 1,000.4 |  |  | $ | 106.4 |  |  | $ | 12.1 |  | $ | 1,707.5 |
Foreign currency translation | — |  |  | 39.4 |  |  | (1.4) |  |  | — |  | 38.0 |
Impairment | (588.6) |  |  | — |  |  | — |  |  | — |  | (588.6) |
Balance as of December 31, 2019 | $ | — |  |  | $ | 1,039.8 |  |  | $ | 105.0 |  |  | $ | 12.1 |  | $ | 1,156.9 |
Foreign currency translation | — |  |  | 23.4 |  |  | (7.3) |  |  | — |  | 16.1 |
Balance as of December 31, 2020 | $ | — |  |  | $ | 1,063.2 |  |  | $ | 97.7 |  |  | $ | 12.1 |  | $ | 1,173.0 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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