Note 11 - Stock-Based Plans Stock Option Activity (Details) (Stock Options [Member], USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended
Jun. 30, 2013
Stock Options [Member]
Stock Option Activity
Stock options outstanding, beginning of period	24
Granted and assumed	1
Exercised	(6)
Forfeited/expired/cancelled	(1)
Stock options outstanding, end of period	18
Weighted average exercise price of stock options granted, during period	$ 55.68
Weighted average grant date fair value of options granted, during period	$ 15.49

Gross number of share options (or share units) granted and options assumed during the period.

No definition available.

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-Subparagraph (c)(1)(i)-(ii)

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 505

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-Publisher FASB

-Name Accounting Standards Codification

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-Section S99

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-Name Accounting Standards Codification

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-Subparagraph (c)(1)(iv)(2)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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