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Note 16 - Reportable Segments (Details) - Reconciliation of Reportable Segment Net Income (Loss) to Consolidated Net Income - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |
Net income |  | $ 212 | $ 1,014 | $ 1,115 | $ 1,484
Unallocated amounts: |  |  |  |  |
Net financing costs (1) | [1] | (31) | (27) | (80) | (86)
Stock-based compensation expense |  | (11) | (19) | (36) | (47)
Exploratory research |  | (32) | (24) | (86) | (75)
Corporate contributions |  | (13) | (19) | (37) | (35)
Equity in earnings of affiliated companies, net of impairments (2) | [2] | 38 | 94 | 191 | 245
Asbestos settlement |  | 9 | (5) | 6 | (11)
Unrealized (loss) gain on foreign currency hedges related to translated earnings |  | (200) | 431 | (282) | 282
Other corporate items (3) | [3] | 63 | 50 | 202 | 3
Reportable Segments [Member] |  |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |
Net income |  | 427 | 574 | 1,368 | 1,348
Non Reportable Segments [Member] |  |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |
Net income |  | $ (38) | $ (41) | $ (131) | $ (140)
[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.

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