Note 18 - Reportable Segments (Details) - Reconciliation of Reportable Segment Net Income (Loss) to Consolidated Net Income - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Income		$ 496	$ 169	$ 903	$ 470
Unallocated amounts:
Net financing costs (1)	[1]	(25)	(30)	(49)	(59)
Stock-based compensation expense		(15)	(13)	(25)	(28)
Exploratory research		(28)	(24)	(54)	(51)
Corporate contributions		(12)	(11)	(24)	(16)
Equity in earnings of affiliated companies, net of impairments (2)	[2]	59	59	153	151
Asbestos settlement		(2)	(4)	(3)	(6)
Unrealized loss on foreign currency hedges related to translated earnings		(7)	(119)	(82)	(149)
Other corporate items (3)	[3]	83	(77)	139	(47)
Reportable Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Income		488	447	941	774
Non Reportable Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Income		$ (45)	$ (59)	$ (93)	$ (99)

[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.

[3] Other corporate items include the tax impact of the unallocated amounts, excluding foreign currency hedges related to translated earnings.