Note 1 - The Company and Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 months cities years	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Computer Equipment [Member] years	Dec. 31, 2011 Software [Member] years	Dec. 31, 2011 Building and Building Improvements [Member] years	Dec. 31, 2011 Aviation Equipment [Member] years	Dec. 31, 2011 Leasehold Improvements [Member] years	Dec. 31, 2011 Furniture and Fixtures [Member] years	Dec. 31, 2011 Vehicles [Member] years	Nov. 19, 2009 Skype [Member]
Company and Summary of Significant Accounting Policies, Details
Primary business segments	3
Number of cities worldwide	1,000
Equity stake in Skype											30.00%
Equity method accounting policy, investment ownership range minimum (in hundredths)		20.00%
Capitalized software development costs	$ 211.5	$ 193.1	$ 160.4
Capitalized Computer Software, Amortization	166.0	146.7	129.1
Advertising expense	976.9	808.4	799.9
Allowance for doubtful accounts receivable and authorized credits	87.2	86.5
Stages of delinquency, high (days)	180
Days past due, charge off loan	180
Bankruptcy charge off timing (days)	60
Promotional credit product receivables	$ 203.0	$ 132.0
Minimum useful lives (years)				1
Maximum useful lives (years)				3		30
Average useful lives (years)							10	5	3	3
Minimum useful lives (years)	1				1
Maximum useful lives (years)	8				3
Approximate months for derivatives to mature	18