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Note 7 - Investments (Details) - Investments - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 11, 2015 | Dec. 31, 2014
Affiliated companies accounted for by the equity method |  |  |  |
Ownership interest, minimum |  | 20.00% |  |
Ownership interest, maximum |  | 50.00% |  |
Investment, amount |  | $ 1,905 |  | $ 1,777
Other investments |  | 70 |  | 24
Total |  | 1,975 |  | 1,801
Dow Corning Corporation [Member] |  |  |  |
Affiliated companies accounted for by the equity method |  |  |  |
Ownership interest |  |  | 50.00% |
Investment, amount |  | 1,483 |  | 1,325
All Other [Member] |  |  |  |
Affiliated companies accounted for by the equity method |  |  |  |
Investment, amount |  | $ 422 |  | $ 452
Parent Company [Member] | Dow Corning Corporation [Member] |  |  |  |
Affiliated companies accounted for by the equity method |  |  |  |
Ownership interest | [1] | 50.00% |  |
Parent Company [Member] | All Other [Member] |  |  |  |
Affiliated companies accounted for by the equity method |  |  |  |
Ownership interest, minimum | [1] | 20.00% |  |
Ownership interest, maximum | [1] | 50.00% |  |
[1] | Amounts reflect Corning's direct ownership interests in the respective affiliated companies at December 31, 2015. Corning does not control any of such entities.

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- Definition Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=29638308&loc=d3e40346-111594 + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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