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Note 17 - Reportable Segments - Reconciliation of Reportable Segment Net Income (Loss) to Consolidated Net Income (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Reportable Segments [Member] |  |  |  |  |
Net income |  | $ 373 | $ 488 | $ 671 | $ 941
Unallocated amounts: |  |  |  |  |
Net income |  | 373 | 488 | 671 | 941
Non Reportable Segments [Member] |  |  |  |  |
Net income |  | (55) | (45) | (140) | (93)
Unallocated amounts: |  |  |  |  |
Net income |  | (55) | (45) | (140) | (93)
Net income |  | 2,207 | 496 | 1,839 | 903
Net financing costs | [1] | (29) | (25) | (58) | (49)
Stock-based compensation expense |  | (14) | (15) | (23) | (25)
Exploratory research |  | (28) | (28) | (55) | (54)
Corporate contributions |  | (16) | (12) | (23) | (24)
Gain |  | 2,676 |  | 2,676 |
Equity in earnings of affiliated companies, net of impairments | [2] | 48 | 59 | 104 | 153
Unrealized loss on foreign currency hedges related to translated earnings |  | (1,253) | (10) | (2,203) | (130)
Resolution of Department of Justice investigation |  | (98) |  | (98) |
Income tax benefit |  | 98 |  | 98 |
Other corporate items |  | (50) | (11) | (66) | (13)
Net income |  | $ 2,207 | $ 496 | $ 1,839 | $ 903
[1] | Net financing costs include interest income, interest expense, and interest costs and investment gains and losses associated with benefit plans.
[2] | Primarily represents the equity earnings of Dow Corning.

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