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Note 17 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Note 17 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |
Balance |  | $ (1,307) |  |  |  |  |
Net current-period other comprehensive income (loss) |  | (505) |  | $ (1,352) |  | $ (312) |
Balance |  | (1,811) |  | (1,307) |  |  |
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |
Note 17 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |
Balance | [1] | (581) |  | 492 |  | 1,174 |
Other comprehensive income before reclassifications | [1] | (487) | [2] | (821) | [3] | (756) | [4]
Amounts reclassified from accumulated other comprehensive income | [1],[5] |  |  | (136) |  |  |
Equity method affiliates | [1],[6] | (103) |  | (116) |  | 74 |
Net current-period other comprehensive income (loss) | [1] | (590) |  | (1,073) |  | (682) |
Balance | [1] | (1,171) |  | (581) |  | 492 |
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |
Note 17 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |
Balance | [1] | (709) |  | (428) |  | (820) |
Other comprehensive income before reclassifications | [1] | (59) | [2] | (172) | [3] | 283 | [4]
Amounts reclassified from accumulated other comprehensive income | [1],[5] | 105 |  | 18 |  | (10) |
Equity method affiliates | [1],[6] | 75 |  | (127) |  | 119 |
Net current-period other comprehensive income (loss) | [1] | 121 |  | (281) |  | 392 |
Balance | [1] | (588) |  | (709) |  | (428) |
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] |  |  |  |  |  |  |
Note 17 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |
Balance | [1] | (15) |  | (14) |  | (16) |
Other comprehensive income before reclassifications | [1] |  |  | 4 | [3] | 1 | [4]
Amounts reclassified from accumulated other comprehensive income | [1],[5] | 1 |  | 1 |  | (1) |
Equity method affiliates | [1],[6] |  |  | (6) |  | 2 |
Net current-period other comprehensive income (loss) | [1] | 1 |  | (1) |  | 2 |
Balance | [1] | (14) |  | (15) |  | (14) |
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] |  |  |  |  |  |  |
Note 17 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |
Balance | [1] | (2) |  | (6) |  | 18 |
Other comprehensive income before reclassifications | [1] | (18) | [2] | 10 | [3] | 56 | [4]
Amounts reclassified from accumulated other comprehensive income | [1],[5] | (20) |  | (6) |  | (81) |
Equity method affiliates | [1],[6] | 2 |  |  |  | 1 |
Net current-period other comprehensive income (loss) | [1] | (36) |  | 4 |  | (24) |
Balance | [1] | (38) |  | (2) |  | (6) |
AOCI Attributable to Parent [Member] |  |  |  |  |  |  |
Note 17 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |
Balance | [1] | (1,307) |  | 44 |  | 356 |
Other comprehensive income before reclassifications | [1] | (564) | [2] | (979) | [3] | (416) | [4]
Amounts reclassified from accumulated other comprehensive income | [1],[5] | 86 |  | (123) |  | (92) |
Equity method affiliates | [1],[6] | (26) |  | (249) |  | 196 |
Net current-period other comprehensive income (loss) | [1] | (504) |  | (1,351) |  | (312) |
Balance | [1] | $ (1,811) |  | $ (1,307) |  | $ 44 |
[1] | All amounts are after tax. Amounts in parentheses indicate debits to accumulated other comprehensive income.
[2] | Amounts are net of total tax benefit of $41 million, including $35 million related to the retirement plans component and $6 million related to the hedges component.
[3] | Amounts are net of total tax benefit of $96 million, including $(7) million related to the hedges component and $104 million related to the retirement plans component and $(1) million related to the investments component.
[4] | Amounts are net of total tax expense of $(197) million, including $(33) million related to the hedges component and $(164) million related to the retirement plans component.
[5] | Tax effects of reclassifications are disclosed separately in this Note 17.
[6] | Tax effects related to equity method affiliates are not significant.

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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
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