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Note 14 - Fair Value Measurements - Major Categories of Financial Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($) $ in Millions | Jun. 30, 2016 | Dec. 31, 2015
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Current Assets [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Other current assets |  | $ 103 | [1] | $ 522 | [2]
Short-term investments |  |  |  |  |
Current Assets [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Other current assets | [2] |  |  |  |
Short-term investments |  |  |  | 100 |
Current Assets [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Other current assets |  |  | [1] |  | [2]
Short-term investments |  |  |  |  |
Current Assets [Member] |  |  |  |  |
Other current assets |  |  | [1] | 522 | [2]
Short-term investments |  |  |  | 100 |
Non Current Assets [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Other assets |  | 107 | [1],[3] | 506 | [2],[4]
Non Current Assets [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Other assets | [2],[4] |  |  |  |
Non Current Assets [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Other assets |  | 237 | [1],[3] | 246 | [2],[4]
Non Current Assets [Member] |  |  |  |  |
Other assets |  |  | [1],[3] | 752 | [2],[4]
Current Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Other accrued liabilities (Note 3 and Note 12) | [1] | 211 |  |  |
Other accrued liabilities | [2] |  |  | 55 |
Current Liabilities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Other accrued liabilities | [2] |  |  |  |
Current Liabilities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Other accrued liabilities (Note 3 and Note 12) | [1] |  |  |  |
Other accrued liabilities | [2] |  |  |  |
Current Liabilities [Member] |  |  |  |  |
Other accrued liabilities (Note 3 and Note 12) | [1] |  |  |  |
Other accrued liabilities | [2] |  |  | 55 |
Non Current Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Other liabilities (Note 3 and Note 12) | [1],[3] | 1,400 |  |  |
Other accrued liabilities | [2],[4] |  |  | 88 |
Non Current Liabilities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Other accrued liabilities | [2],[4] |  |  |  |
Non Current Liabilities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Other liabilities (Note 3 and Note 12) | [1],[3] | 8 |  |  |
Other accrued liabilities | [2],[4] |  |  | 10 |
Non Current Liabilities [Member] |  |  |  |  |
Other liabilities (Note 3 and Note 12) | [1],[3] |  |  |  |
Other accrued liabilities | [2],[4] |  |  | 98 |
Other assets |  | 1,187 |  | 1,493 |
Other accrued liabilities (Note 3 and Note 12) |  | 1,231 |  | 1,308 |
Other liabilities (Note 3 and Note 12) |  | $ 3,905 |  | $ 2,242 |
[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] | Derivative assets and liabilities include foreign exchange contracts which are measured using observable quoted prices for similar assets and liabilities.
[3] | Other assets include asset-backed securities which are measured using observable quoted prices for similar assets and contingent consideration assets or liabilities which are measured by applying an option pricing model using projected future revenue and forecasted foreign exchange rates.
[4] | Other assets include asset-backed securities which are measured using observable quoted prices for similar assets and contingent consideration assets or liabilities 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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