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Note 6 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2015
Income Tax Disclosure [Abstract] |
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
| Years ended December 31,
| 2015 |  | 2014 |  | 2013
U.S. companies | $ | 426 |  | $ | 2,384 |  | $ | 1,274
Non-U.S. companies |  | 1,060 |  |  | 1,184 |  |  | 1,199
Income before income taxes | $ | 1,486 |  | $ | 3,568 |  | $ | 2,473
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
| Years ended December 31,
| 2015 |  | 2014 |  | 2013
Current: |  |  |  |  |  |  |  |
Federal | $ | 40 |  | $ | 38 |  | $ | 3
State and municipal |  | 20 |  |  | 32 |  |  | 12
Foreign |  | 33 |  |  | 414 |  |  | 308
Deferred: |  |  |  |  |  |  |  |
Federal |  | 144 |  |  | 411 |  |  | 112
State and municipal |  | 30 |  |  | (9) |  |  | 50
Foreign |  | (120) |  |  | 210 |  |  | 27
Provision for income taxes | $ | 147 |  | $ | 1,096 |  | $ | 512
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
| Years ended December 31,
| 2015 |  | 2014 |  | 2013
Statutory U.S. income tax rate | 35.0% |  |  | 35.0% |  |  | 35.0% |
State income tax (benefit), net of federal effect | 0.1 |  |  | 4.9 | (9) |  | 0.6 |
Tax holidays (1) | (0.5) |  |  | (0.4) |  |  | (1.2) |
Investment and other tax credits (2) | (1.7) |  |  | (0.3) |  |  | (2.0) |
Rate difference on foreign earnings | (19.8) | (11) |  | (8.3) |  |  | (8.1) | (4)
Uncertain tax positions | 4.3 | (10) |  | (0.1) |  |  | 0.2 |
Equity earnings impact (3) | (5.4) |  |  | (2.0) |  |  | (6.6) |
Valuation allowances | (4.2) | (7) |  | 0.8 | (6) |  | 3.1 | (5)
Other items, net | 2.1 |  |  | 1.1 | (8) |  | (0.3) |
Effective income tax (benefit) rate | 9.9% |  |  | 30.7% |  |  | 20.7% |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
| December 31,
| 2015 |  | 2014
Loss and tax credit carryforwards | $ | 1,151 |  | $ | 1,235
Other assets |  | 69 |  |  | 69
Asset impairments and restructuring reserves |  | 153 |  |  | 170
Postretirement medical and life benefits |  | 276 |  |  | 312
Other accrued liabilities |  | 265 |  |  | 246
Other employee benefits |  | 505 |  |  | 473
Gross deferred tax assets |  | 2,419 |  |  | 2,505
Valuation allowance |  | (238) |  |  | (298)
Total deferred tax assets |  | 2,181 |  |  | 2,207
Intangible and other assets |  | (181) |  |  | (152)
Fixed assets |  | (284) |  |  | (299)
Total deferred tax liabilities |  | (465) |  |  | (451)
Net deferred tax assets | $ | 1,716 |  | $ | 1,756
Schedule of Net Deferred Tax Assets [Table Text Block] |
| December 31,
| 2015 |  | 2014
Current deferred tax assets |  |  |  | $ | 248
Non-current deferred tax assets | $ | 2,056 |  |  | 1,889
Current deferred tax liabilities |  |  |  |  | (5)
Non-current deferred tax liabilities |  | (340) |  |  | (376)
Net deferred tax assets | $ | 1,716 |  | $ | 1,756
Summary of Tax Credit Carryforwards [Table Text Block] |
|  |  | Expiration
| Amount |  | 2016-2020 |  | 2021-2025 |  | 2026-2035 |  | Indefinite
Net operating losses | $ | 406 |  | $ | 127 |  | $ | 63 |  | $ | 3 |  | $ | 213
Tax credits |  | 745 |  |  | 414 |  |  | 58 |  |  | 237 |  |  | 36
Totals as of December 31, 2015 | $ | 1,151 |  | $ | 541 |  | $ | 121 |  | $ | 240 |  | $ | 249
Summary of Income Tax Contingencies [Table Text Block] |
| 2015 |  | 2014
Balance at January 1 | $ | 10 |  | $ | 15
Additions based on tax positions related to the current year |  |  |  |  |
Additions for tax positions of prior years |  | 245 |  |  | 5
Reductions for tax positions of prior years |  | (1) |  |  |
Settlements and lapse of statute of limitations |  | (1) |  |  | (10)
Balance at December 31 | $ | 253 |  | $ | 10

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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