Note 1 - The Company and Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Company and Summary of Significant Accounting Policies, Details
Capitalized software development costs	$ 285	$ 212	$ 193
Amortization of previously capitalized software	184	166	147
Advertising expense	1,100	977	808
Allowance for doubtful accounts receivable and authorized credits	89	87
Stages of delinquency, high (days)	180 days
Days past due, charge off loan	180 days
Bankruptcy charge off timing (days)	60 days
Promotional credit product receivables	$ 263	$ 203
Approximate months for derivatives to mature	18 months
Building and Building Improvements [Member]
Company and Summary of Significant Accounting Policies, Details
Minimum useful lives (years)	30 years
Aviation Equipment [Member]
Company and Summary of Significant Accounting Policies, Details
Minimum useful lives (years)	10 years
Leasehold Improvements [Member]
Company and Summary of Significant Accounting Policies, Details
Minimum useful lives (years)	5 years
Furniture and Fixtures [Member]
Company and Summary of Significant Accounting Policies, Details
Minimum useful lives (years)	3 years
Minimum [Member]
Company and Summary of Significant Accounting Policies, Details
Minimum useful lives (years)	1 year
Minimum [Member] | Computer Equipment [Member]
Company and Summary of Significant Accounting Policies, Details
Minimum useful lives (years)	1 year
Maximum [Member]
Company and Summary of Significant Accounting Policies, Details
Minimum useful lives (years)	8 years
Maximum [Member] | Computer Equipment [Member]
Company and Summary of Significant Accounting Policies, Details
Minimum useful lives (years)	3 years