INTANGIBLE ASSETS

9 Months Ended

Sep. 30, 2015

Intangible Assets, Net (Excluding Goodwill) [Abstract]

INTANGIBLE ASSETS DISCLOSURE

INTANGIBLE ASSETS

The following table provides information regarding the Corporation’s intangible assets:

Intangible Assets	At September 30, 2015							At December 31, 2014
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	59		(41		)	18		55		(40		)	15
Total intangible assets	$	92	$	(74	)	$	18	$	88	$	(73	)	$	15

Total estimated amortization expense for 2015 and the five succeeding fiscal years is as follows:

Estimated Amortization Expense In millions
2015	$	2
2016	$	3
2017	$	3
2018	$	4
2019	$	4
2020	$	3