Contingencies And Other Disclosures (Narrative I) (Details) (USD $)	3 Months Ended	12 Months Ended					3 Months Ended	7 Months Ended	3 Months Ended			12 Months Ended												3 Months Ended
	Mar. 31, 2014 number	Dec. 31, 2008	Mar. 31, 2013	Aug. 31, 2008	Mar. 25, 2014 First Lien Mortgage Securitizations [Member]	Dec. 31, 2005 First Lien Mortgage Securitizations [Member]	Jun. 30, 2011 Sentinel Litigation [Member]	Jul. 31, 2011 Sentinel Litigation [Member] number	Mar. 31, 2014 Mortgage Securitization Litigation [Member]	Mar. 31, 2014 Debit Transaction Sequencing Matter [Member]	Mar. 25, 2014 Federal Home Loan Bank San Francisco [Member]	Dec. 31, 2007 F H Proprietary Securitization [Member] number	Mar. 31, 2014 F H Proprietary Securitization [Member]	Mar. 25, 2014 F H Proprietary Securitization [Member]	Mar. 25, 2014 Federal Home Loan Bank Of Atlanta [Member]	Aug. 31, 2008 FHA Insured number	Mar. 31, 2014 Alternative Mortgage Loans [Member] F H Proprietary Securitization [Member]	Mar. 31, 2014 Jumbo Mortgage Loans [Member] F H Proprietary Securitization [Member]	Mar. 31, 2014 Maximum [Member]	Mar. 31, 2014 Minimum [Member]	Mar. 25, 2014 Credit Unions [Member] First Lien Mortgage Securitizations [Member]	Mar. 25, 2014 Credit Unions [Member] Home Equity [Member]	Mar. 31, 2014 Home Equity [Member] F H Proprietary Securitization [Member] number	Mar. 31, 2014 Federal Housing Finance Agency [Member]	Mar. 25, 2014 Investments Subject To Lawsuits [Member] Mortgage Securitization Litigation [Member]
Loss Contingencies [Line Items]
Number of subsidiaries								2
Number of former employees								2
Estimated reasonably possible losses in excess of currently established liabilities																			$ 113,000,000	$ 0
Litigation settlement amount								38,500,000																110,000,000
Settlement expense							36,700,000
Actual damages sought by plaintiff										5,000,000
Subservicer expenditure reimbursement amount disputed	34,900,000
Loans originated and sold to Agencies		69,500,000,000
Loans securitized, without recourse in proprietary transactions												26,700,000,000
Number of active securitization trusts																							1
Number of securitization trusts												80
Remaining balance in mortgage loans													6,900,000,000				4,800,000,000	2,100,000,000
Stated percentage of voting rights	25.00%
Original combined certificate balances of investments subject to subpoena											501,100,000				56,100,000						321,600,000	299,800,000
Total original certificate balance with monoline insurance						25,000,000
Total current certificate balance with monoline insurance					23,400,000
Current combined certificate balances of investments subject to subpoena											149,500,000				9,500,000						109,000,000	77,000,000
Investment in proprietary securitizations subject to indemnifications									331,400,000
Investment in proprietary securitizations subject to lawsuits									247,600,000
Ending certificate balance of the investments subject to lawsuits																									218,300,000
Investments percentage performing																									80.00%
Cumulative losses on investments, percentage of unpaid balance																									8.00%
Cumulative original note balances of the HELOC proprietary securitizations														299,800,000
Current note balances of the HELOC proprietary securitizations														77,000,000
Unpaid principal balance of loans sold where private mortgage insurance had been cancelled	483,000,000		454,700,000
Estimated Litigation Liability	121,500,000
Number of GSEs to which conventional conforming single-family mortgage loans were predominately sold to	2
Number of years of the subservicing arrangement				3 years
Loans sold to GSEs		57,600,000,000
Loans guaranteed by Ginnie Mae		11,900,000,000
Number Of Loans Originated From 2006 to 2008 Divestiture Of The National Mortgage Platform																47,817
Amount Of Loans Originated From 2006 to 2008 Divestiture Of The National Mortgage Platform																$ 8,200,000,000
Percent Of Repurchase Make Whole Claims Related To Private Whole Loan Sales	18.00%