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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill
The changes in the carrying amount of goodwill in 2019 and 2018, in total and by segment, are summarized in the table below (in millions): 
Segment:
Balance at December 31, 2017 (1)
 
Write-off due to divested businesses
 
Changes in foreign currency translation rates
 
Balance at December 31, 2018
 
Goodwill Reallocation (2)
 
Changes in foreign currency translation rates
 
Balance at December 31, 2019
Residential Heating & Cooling
$
26.1

 
$
—

 
$
—

 
$
26.1

 
$
—

 
$
—

 
$
26.1

Commercial Heating & Cooling
62.2

 
—

 
(0.8
)
 
61.4

 
(0.3
)
 
—

 
61.1

Refrigeration
112.2

 
(11.5
)
 
(1.6
)
 
99.1

 
0.3

 
(0.1
)
 
99.3

 
$
200.5

 
$
(11.5
)
 
$
(2.4
)
 
$
186.6

 
$
—

 
$
(0.1
)
 
$
186.5

 
(1) The goodwill balances in the table above are presented net of accumulated impairment charges of $21.2 million, all of which relate to impairments in periods prior to 2017.