Note 15 - Income Taxes Summary of Income Tax Examinations (Details) (USD $) In Millions, unless otherwise specified	24 Months Ended				12 Months Ended
	Dec. 31, 2007	Dec. 31, 2012 Internal Revenue Service (IRS) [Member]	May 03, 2010 Internal Revenue Service (IRS) [Member]	Jun. 30, 2008 Internal Revenue Service (IRS) [Member]	Dec. 31, 2012 Minimum [Member] Internal Revenue Service (IRS) [Member]		Dec. 31, 2012 Minimum [Member] State and Local Jurisdiction [Member]		Dec. 31, 2012 Maximum [Member] Internal Revenue Service (IRS) [Member]		Dec. 31, 2012 Maximum [Member] State and Local Jurisdiction [Member]
Income Tax Examination [Line Items]
Proposed Increase To Tax Liability Resulting From I.R.S. Examination Of Tax Years 2000 Through 2007		$ 128
Income Tax Examination, Proposed Penalties		42
Qualified Deposit With The U.S. Department Of Treasury Relating to Tax Years 2000 Through 2004				85.0
Qualified Deposit With The U.S. Department Of Treasury Relating To Tax Years 2005 Through 2007			4.0
Amount of Claimed Income Tax Refund for Tax Years 2006 and 2007	$ 105.0
Income Tax Examination, Year(s) under Examination					2000	[1]	1999	[2]	2011	[1]	2011	[2]

[1] We are currently contesting proposed adjustments resulting from the examination by the IRS of our 2000 through 2007 tax years. As part of this process, we have agreed to extend all relevant statute of limitations for the assessment of tax to June 30, 2013. All such statute of limitation extensions have limited the scope of the examinations to the recognition of certain tax benefits that relate to our investment in a portfolio of non-economic REMIC residual interests.

[2] Arizona, California, Florida, Georgia, New York, Ohio, Pennsylvania, Texas and New York City.