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Other, Net (Tables)
 3 Months Ended
Mar. 31, 2012
Other Net [Abstract]  
Other, Net
The components of Other, net for the three months ended March 31 were as follows:
In millions
2012
 
2011
Interest income
$
4.7

 
$
5.1

Exchange gain (loss)
(1.8
)
 
0.1

Earnings (loss) from equity investments
(5.2
)
 
—

Other
2.1

 
(0.3
)
Other, net
$
(0.2
)
 
$
4.9