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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill | The changes in the carrying amount of goodwill in 2020 and 2019, in total and by segment, are summarized in the table below (in millions):
Segment: | Balance at December 31, 2018 (1) |  | Goodwill Reallocation (2) |  | Changes in foreign currency translation rates |  | Balance at December 31, 2019 |  |  |  | Changes in foreign currency translation rates |  | Balance at December 31, 2020
Residential Heating & Cooling | $ | 26.1 |  |  | $ | — |  |  | $ | — |  |  | $ | 26.1 |  |  |  |  | $ | — |  |  | $ | 26.1 |
Commercial Heating & Cooling | 61.4 |  |  | (0.3) |  |  | — |  |  | 61.1 |  |  |  |  | — |  |  | 61.1 |
Refrigeration | 99.1 |  |  | 0.3 |  |  | (0.1) |  |  | 99.3 |  |  |  |  | 0.4 |  |  | 99.7 |
| $ | 186.6 |  |  | $ | — |  |  | $ | (0.1) |  |  | $ | 186.5 |  |  |  |  | $ | 0.4 |  |  | $ | 186.9 |
(1) The goodwill balances in the table above are presented net of accumulated impairment charges of $32.7 million, all of which relate to impairments in periods prior to 2018. (2) In 2019, we reorganized our external financial reporting structure by moving our European Commercial HVAC business from our Commercial segment to our Refrigeration segment as we manage both our commercial HVAC and refrigeration operations in Europe together. See Note 3 for additional information.

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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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