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Other, Net (Tables)
 6 Months Ended
Jun. 30, 2016
Other Net [Abstract]  
Other, Net
The components of Other income/(expense), net for the three and six months ended June 30 are as follows:
 
Three months ended
 
Six months ended
In millions
2016

2015
 
2016
 
2015
Interest income
$
2.6

 
$
2.4

 
$
4.6

 
$
5.3

Exchange gain (loss)
3.8

 
(0.1
)
 
9.3

 
(32.4
)
Income (loss) from equity investment
—

 
3.6

 
(0.8
)
 
4.2

Gain on sale of Hussmann equity investment
397.8

 
—

 
397.8

 
—

Other activity, net
(1.2
)
 
16.1

 
2.1

 
18.5

Other income/(expense), net
$
403.0

 
$
22.0

 
$
413.0

 
$
(4.4
)