Note 6 - Income Taxes (Details) - Income Before Income Taxes - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Before Income Taxes [Abstract]
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

Sum of operating profit (loss) including equity in earnings of affiliated companies and nonoperating income (expense) before income taxes.

No definition available.

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- References

No definition available.

+ Details

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- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

+ References

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