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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2019
Goodwill Abstract  
Changes in Goodwill Carrying Amounts
The changes in the carrying amount of Goodwill are as follows: 
In millions
 
Climate
 
Industrial
 
Total
Net balance as of December 31, 2017
 
$
5,065.1

 
$
870.6

 
$
5,935.7

Acquisitions (1)
 
118.1

 
1.8

 
119.9

Currency translation
 
(84.0
)
 
(12.1
)
 
(96.1
)
Net balance as of December 31, 2018
 
5,099.2

 
860.3

 
5,959.5

Acquisitions (1)
 
45.3

 
801.3

 
846.6

Currency translation
 
(18.8
)
 
(4.2
)
 
(23.0
)
Net balance as of December 31, 2019
 
$
5,125.7

 
$
1,657.4

 
$
6,783.1


(1) Refer to Note 19, "Acquisitions and Divestitures" for more information regarding acquisitions.
The net goodwill balances at December 31, 2019, 2018 and 2017 include $2,496.0 million of accumulated impairment. The accumulated impairment relates entirely to a charge in 2008 associated with the Climate segment.