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Business Segment Information (Tables)
 3 Months Ended
Mar. 31, 2017
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Summary of Operations by Reportable Segments
A summary of operations by reportable segment for the three months ended March 31 was as follows:
 
Three months ended
In millions
2017
 
2016
Net revenues
 
 
 
Climate
$
2,324.1

 
$
2,213.5

Industrial
676.5

 
680.6

Total
$
3,000.6

 
$
2,894.1

Segment operating income
 
 
 
Climate
$
217.3

 
$
217.2

Industrial
65.8

 
63.8

Unallocated corporate expense
(68.1
)
 
(55.6
)
Operating income
$
215.0

 
$
225.4