Note 10 - Stock Repurchase Programs (Details) (USD $) Share data in Thousands, except Per Share data	6 Months Ended			12 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011 Stock Repurchase Programs [Member]	Dec. 31, 2010 Stock Repurchase Programs [Member]	Jun. 30, 2011 Stock Repurchase Program 2010 [Member]
Equity, Class of Treasury Stock [Line Items]
Amount authorized under stock repurchase program					$ 2,000,000,000
Treasury stock acquired under stock repurchase program, average price per share	$ 31.61		$ 31.74	$ 29.94
Shares Repurchased [Abstract]
Shares repurchased, beginning balance			1,880
Shares repurchased			24,600
Shares repurchased, ending balance			26,480	1,880
Stock Repurchased Value [Roll Forward]
Treasury Stock Value of Shares Repurchased			56,293,000
Repurchase of common stock			780,759,000
Treasury Stock Value of Shares Repurchased			837,052,000	56,293,000
Stock Repurchase Remaining Authorized Amount [Roll Forward]
Stock Repurchase remaining amount authorized, beginning balance			1,162,948,000	1,943,707,000
Repurchases of common stock	(781,380,000)	0	(780,759,000)
Stock Repurchase remaining amount authorized, ending balance			$ 1,162,948,000	$ 1,943,707,000
Repurchased shares retired during period	0