INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2016

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Intangible Assets

Intangible Assets at December 31			2016							2015
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	70		(45		)	25		63		(41		)	22
Total intangible assets	$	103	$	(78	)	$	25	$	96	$	(74	)	$	22

Schedule Of Finite Lived Intangible Assets Amortization Expense Table [Table Text Block]

Amortization Expense In millions	2016		2015		2014
Software (1)	$	4	$	2	$	2

(1) Included in “Cost of sales” in the consolidated statements of income.

Schedule of Expected Amortization Expense [Table Text Block]

Estimated Amortization Expense for Next Five Years In millions
2017	$	4
2018	$	5
2019	$	5
2020	$	5
2021	$	3