Intangible Assets

9 Months Ended

Sep. 30, 2011

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets Disclosure [Text Block]

INTANGIBLE ASSETS

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

Intangible Assets	At September 30, 2011							At December 31, 2010
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	)	$	—
Patents	—		—			—		2		(2		)	—
Software	115		(107		)	8		112		(105		)	7
Total intangible assets	$	148	$	(140	)	$	8	$	147	$	(140	)	$	7

Amortization expense for software, which is included in “Cost of sales,” was $1 million in the third quarter of 2011 and less than $1 million in the third quarter of 2010. Amortization expense for software was $3 million for the nine months ended September 30, 2011 and $3 million for the nine months ended September 30, 2010. Amortization expense for intangible assets (not including software) was immaterial in the third quarters of 2011 and 2010, as well as year-to-date for 2011 and 2010.

Total estimated amortization expense for 2011 and the five succeeding fiscal years is as follows:

Estimated Amortization Expense In millions
2011	$	4
2012	$	2
2013	$	1
2014	$	1
2015	$	—
2016	$	—