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Gain (loss) on sales or impairment of long lived assets (Tables)
 12 Months Ended
Dec. 31, 2012
GAIN (LOSS) ON SALE OF AND IMPAIRMENT OF LONG-LIVED ASSETS, NET [Abstract]  
gain or loss on sale or impairment on assets [Table Text Block]
The major components of “Loss on sale or impairment of long-lived assets” in the Consolidated Statements of Income for the years ended December 31 are reflected in the table below and are described in the paragraphs following the table:
 
Dollar amounts in millions
Year ended December 31,
2012
 
2011
 
2010
Impairment charges on long-lived assets
$
(4.4
)
 
$
(74.0
)
 
$
(2.4
)
Gain (loss) on sale of other long-lived assets
(0.5
)
 
0.1

 
—

 
$
(4.9
)
 
$
(73.9
)
 
$
(2.4
)