Note 19 - Reportable Segments (Details) - Reconciliation of Reportable Segment Net Income (Loss) to Consolidated Net Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Income	$ 301		$ 494
Unallocated amounts:
Net financing costs (1)	(29)	[1]	(34)	[1]
Stock-based compensation expense	(15)		(11)
Exploratory research	(27)		(24)
Corporate contributions	(5)		(13)
Equity in earnings of affiliated companies, net of impairments (2)	92	[2]	34	[2]
Asbestos settlement	(2)		(2)
Purchased collars and average forward contracts	2		24
Other corporate items (3)	(2)	[3]	86	[3]
Reportable Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Income	327		462
Non Reportable Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Income	$ (40)		$ (28)

[1] Net financing costs include interest income, interest expense, and interest costs and investment gains associated with benefit plans.

[2] Primarily represents the equity earnings of Dow Corning, which includes our portion of a mark-to-market gain on a derivative instrument, totaling $32 million, for the three months ended March 31, 2014 and a $2 million restructuring charge for our share of costs for headcount reductions and asset write-offs for the three months ended March 31, 2013.

[3] For the three months ended March 31, 2013, Corning recorded a $54 million tax benefit for the impact of the American Taxpayer Relief Act enacted on January 3, 2013 retroactive to 2012.