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INCOME TAXES (Tables)
 6 Months Ended
Jun. 30, 2017
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 six months ended June 30, 2017: 
In millions
Unrecognized
Tax Benefits
 
Accrued Estimated
Interest and Tax
Penalties
Balance at December 31, 2016
$
(98
)
 
$
(22
)
Activity for three months ended March 31, 2017
(2
)
 
2

Activity for the three months ended June 30, 2017
(42
)
 
1

Balance at June 30, 2017
$
(142
)
 
$
(19
)
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: 
 
Six Months Ended
June 30,
In millions
2017
 
2016
Litigation settlement
$
(135
)
 
$
—

Other special items
(15
)
 
(13
)
Restructuring and other charges items
5

 
—

Tax-related adjustments:
 
 
 
International investment restructurings
15

 
(63
)
Income tax refund claims
(85
)
 
—

Return to accrual
38

 
23

2010-2012 IRS audit closure
—

 
(14
)
Income tax provision (benefit) related to special items
$
(177
)
 
$
(67
)