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OTHER OPERATING INCOME, NET (Tables)
 3 Months Ended
Mar. 31, 2013
Items Included in Other Operating Income, Net
Items Included in Other Operating Income, Net
 
QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS
MARCH 2013
 
MARCH 2012
Gain on postretirement plan amendment (Note 5)
$
—

 
$
(52
)
Gain on disposition of assets
(6
)
 
(1
)
Foreign exchange losses (gains), net
4

 
(7
)
Land management income
(6
)
 
(6
)
Other, net
(10
)
 
—

Total other operating income, net
$
(18
)
 
$
(66
)