Note 4 - Goodwill and Intangible Assets Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011	Mar. 31, 2012 Customer Lists and User Base Y	Dec. 31, 2011 Customer Lists and User Base Y	Mar. 31, 2012 Trademarks and Trade Names Y	Dec. 31, 2011 Trademarks and Trade Names Y	Mar. 31, 2012 Developed Technology Y	Dec. 31, 2011 Developed Technology Y	Mar. 31, 2012 All Other Y	Dec. 31, 2011 All Other Y
Intangible Assets:
Gross Carrying Amount	$ 3,072		$ 3,043	$ 1,640	$ 1,633	$ 742	$ 730	$ 502	$ 498	$ 188	$ 182
Accumulated Amortization	(1,756)		(1,637)	(849)	(787)	(500)	(469)	(271)	(249)	(136)	(132)
Net Carrying Amount	1,316		1,406	791	846	242	261	231	249	52	50
Weighted-Average Useful Life (Years)				5	5	5	5	4	3	4	4
Amortization expense	$ 105	$ 57