Note 15 - Earnings Per Share (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Weighted Average Number of Shares Outstanding, Basic	272.5	271.1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	7.6	13.1
Incremental Common Shares Attributable to Call Options and Warrants	40.0	40.0
Aggregate Principal Amount Of Convertible Security Convertible Senior Notes (in Dollars)	$ 400	$ 400

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

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+ Details

- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References+ Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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+ Details