Note 11 - Stock-Based Plans Stock Option Activity (Details) (Stock Options [Member], USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Stock Options [Member]
Stock Option Activity
Stock options outstanding, beginning of period	40
Granted and assumed	2
Exercised	(13)
Forfeited/expired/cancelled	(2)
Stock options outstanding, end of period	27
Weighted average exercise price of stock options granted, during period	$ 36.52
Weighted average grant date fair value of options granted, during period	$ 11.16