PROPERTY (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of property

Property at Dec 31 1	Estimated Useful Lives (Years)
In millions		2017		2016
Land and land improvements	0-25	$	283	$	274
Buildings	5-50	402		396
Machinery and equipment	3-20	6,049		5,872
Other property	3-30	325		272
Construction in progress	—	250		330
Total property		$	7,309	$	7,144

Schedule of other items related to property [Text Block]

In millions	2017		2016		2015
Depreciation expense	$	176	$	166	$	160
Capitalized interest	$	10	$	13	$	10