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Other, Net (Tables)
 6 Months Ended
Jun. 30, 2013
Other Net [Abstract]  
Other, Net
The components of Other, net for the three and six months ended June 30 were as follows:
 
Three months ended
 
Six months ended
In millions
2013

2012
 
2013
 
2012
Interest income
$
2.5

 
$
3.9

 
$
6.0

 
$
8.6

Exchange gain (loss)
(6.8
)
 
(1.0
)
 
(13.7
)
 
(2.8
)
Earnings (loss) from equity investments
1.7

 
(0.8
)
 
(2.5
)
 
(6.0
)
Other
0.9

 
2.0

 
1.4

 
4.1

Other, net
$
(1.7
)
 
$
4.1

 
$
(8.8
)
 
$
3.9