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Note 13 - Fair Value Measurements (Details) - Major Categories of Financial Assets and Liabilities Measured on a Recurring Basis - USD ($) $ in Millions | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Non-current assets: |  |  |
Other assets |  | $ 1,551 | $ 1,722
Current liabilities: |  |  |
Other accrued liabilities (1) |  | 956 | 1,291
Non-current liabilities: |  |  |
Other liabilities (1)(3) |  | 2,165 | 2,046
Current Assets [Member] |  |  |
Current assets: |  |  |
Short-term investments |  | 573 | 759
Other current assets | [1] | 549 | 687
Non Current Assets [Member] |  |  |
Non-current assets: |  |  |
Other assets | [1],[2] | 1,088 | 1,330
Current Liabilities [Member] |  |  |
Current liabilities: |  |  |
Other liabilities | [1] |  | 44
Current liabilities: |  |  |
Other accrued liabilities (1) | [1],[3] | 74 |
Non Current Liabilities [Member] |  |  |
Current liabilities: |  |  |
Other liabilities | [1] |  | 15
Non-current liabilities: |  |  |
Other liabilities (1)(3) | [1],[3] | 110 |
Fair Value, Inputs, Level 1 [Member] | Current Assets [Member] |  |  |
Current assets: |  |  |
Short-term investments |  | 513 | 759
Fair Value, Inputs, Level 2 [Member] | Current Assets [Member] |  |  |
Current assets: |  |  |
Short-term investments |  | 60 |
Other current assets | [1] | 549 | 687
Fair Value, Inputs, Level 2 [Member] | Non Current Assets [Member] |  |  |
Non-current assets: |  |  |
Other assets | [1],[2] | 643 | 885
Fair Value, Inputs, Level 2 [Member] | Current Liabilities [Member] |  |  |
Current liabilities: |  |  |
Other liabilities | [1] |  | 44
Current liabilities: |  |  |
Other accrued liabilities (1) | [1],[3] | 74 |
Fair Value, Inputs, Level 2 [Member] | Non Current Liabilities [Member] |  |  |
Current liabilities: |  |  |
Other liabilities | [1] |  | 15
Non-current liabilities: |  |  |
Other liabilities (1)(3) | [1],[3] | 100 |
Fair Value, Inputs, Level 3 [Member] | Non Current Assets [Member] |  |  |
Non-current assets: |  |  |
Other assets | [1],[2] | 445 | $ 445
Fair Value, Inputs, Level 3 [Member] | Non Current Liabilities [Member] |  |  |
Non-current liabilities: |  |  |
Other liabilities (1)(3) | [1],[3] | $ 10 |
[1] | Derivative assets and liabilities include foreign exchange forward and zero-cost collar contracts, and interest rate swaps which are measured using observable quoted prices for similar assets and liabilities.
[2] | Other assets include asset-backed securities which are measured using observable quoted prices for similar assets and contingent consideration assets which are measured by applying an option pricing model using projected future revenue.
[3] | Other liabilities include Level 3 contingent consideration payables which are measured by applying an option pricing model using projected future revenues.

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + 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 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13495-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 + Details
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