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INTANGIBLE ASSETS (Tables)
6 Months Ended
Jun. 30, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract]  
Intangible Assets
Intangible Assets
At June 30, 2013
 
At December 31, 2012
In millions
Gross
Carrying Amount

 
Accumulated Amortization

 
Net

 
Gross
Carrying Amount

 
Accumulated Amortization

 
Net

Intangible assets with finite lives:
 
 
 
 
 
 
 
 
 
 
 
Licenses and intellectual property
$
33

 
$
(33
)
 
$

 
$
33

 
$
(33
)
 
$

Software
48

 
(40
)
 
8

 
46

 
(39
)
 
7

Total intangible assets
$
81

 
$
(73
)
 
$
8

 
$
79

 
$
(72
)
 
$
7

Schedule of Expected Amortization Expense [Table Text Block]
Estimated Amortization Expense
In millions
2013
$
2

2014
$
2

2015
$
2

2016
$
1

2017
$
1

2018
$