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INCOME TAXES (Tables)
 3 Months Ended
Mar. 31, 2016
Income Tax Disclosure [Abstract]  
Unrecognized Tax Benefits and Related Accrued Estimated Interest and Penalties [Table Text Block]
The following table presents a rollforward of unrecognized tax benefits and related accrued estimated interest and penalties for the three months ended March 31, 2016: 
In millions
Unrecognized
Tax Benefits
 
Accrued Estimated
Interest and Tax
Penalties
Balance at December 31, 2015
$
(150
)
 
$
(34
)
Activity for three months ended March 31, 2016
26

 
(1
)
Balance at March 31, 2016
$
(124
)
 
$
(35
)
Components of Net Income Tax Provisions Related to Special Items and Discontinued Operations [Table Text Block]
The components of the net provision related to special items were as follows: 
 
Three Months Ended
March 31,
In millions
2016
 
2015
Special items
$
(3
)
 
$
—

Tax-related adjustments:
 
 
 
Internal restructurings
(57
)
 
—

2010-2012 IRS audit closure
(14
)
 
—

Income tax provision (benefit) related to special items
$
(74
)
 
$
—