Contingencies And Other Disclosures (Narrative I) (Details) (USD $)	3 Months Ended			6 Months Ended			12 Months Ended	32 Months Ended				3 Months Ended	6 Months Ended	3 Months Ended				12 Months Ended
	Jun. 30, 2014 number		Jun. 30, 2013	Jun. 30, 2014 number		Jun. 30, 2013	Dec. 31, 2008	Aug. 31, 2008	Jun. 25, 2014 First Lien Mortgage Securitizations [Member]	Dec. 31, 2005 First Lien Mortgage Securitizations [Member]	Jul. 31, 2011 Sentinel Litigation [Member] number	Jun. 30, 2014 Sentinel Litigation [Member] Insurance Settlement	Jun. 30, 2014 Sentinel Litigation [Member] Insurance Settlement	Jun. 30, 2014 Proprietary Securitization [Member]	Jun. 30, 2014 Mortgage Securitization Litigation [Member]	Jun. 30, 2014 Debit Transaction Sequencing Matter [Member]	Jun. 25, 2014 Federal Home Loan Bank San Francisco [Member]	Dec. 31, 2007 F H Proprietary Securitization [Member] number	Jun. 30, 2014 F H Proprietary Securitization [Member]	Jun. 25, 2014 F H Proprietary Securitization [Member]	Jun. 25, 2014 Federal Home Loan Bank Of Atlanta [Member]	Aug. 31, 2008 FHA Insured number	Jun. 30, 2014 Alternative Mortgage Loans [Member] F H Proprietary Securitization [Member]	Jun. 30, 2014 Jumbo Mortgage Loans [Member] F H Proprietary Securitization [Member]	Jun. 30, 2014 Maximum [Member]	Jun. 30, 2014 Minimum [Member]	Jun. 25, 2014 Credit Unions [Member] First Lien Mortgage Securitizations [Member]	Jun. 25, 2014 Credit Unions [Member] Home Equity [Member]	Jun. 30, 2014 Home Equity [Member] F H Proprietary Securitization [Member] number	Jun. 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																									$ 115,000,000	$ 0
Actual damages sought by plaintiff																5,000,000
Subservicer expenditure reimbursement amount disputed	34,900,000			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																			6,700,000,000				4,600,000,000	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									23,300,000
Current combined certificate balances of investments subject to subpoena																	147,500,000				7,300,000						104,000,000	72,100,000
Investment in proprietary securitizations subject to indemnifications															331,400,000
Investment in proprietary securitizations subject to lawsuits															225,700,000
Ending certificate balance of the investments subject to lawsuits																														212,500,000
Investments percentage performing																														85.00%
Cumulative losses on investments, percentage of unpaid balance																														5.00%
Cumulative original note balances of the HELOC proprietary securitizations																				299,800,000
Current note balances of the HELOC proprietary securitizations																				72,100,000
Unpaid principal balance of loans sold where private mortgage insurance had been cancelled	505,600,000		473,900,000	505,600,000		473,900,000
Estimated Litigation Liability	11,900,000			11,900,000
Number of GSEs to which conventional conforming single-family mortgage loans were predominately sold to	2			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	21.00%
Litigation And Regulatory Matters	(38,200,000)	[1]	900,000	(38,110,000)	[1]	6,070,000						(38,600,000)	(38,600,000)
Professional Fees	6,151,000		14,065,000	21,190,000		25,236,000						(8,500,000)
Gain Loss Related To Litigation Settlement												47,100,000	47,100,000
Amount of insurance recoveries FHN is pursuing														$ 15,000,000

[1] Three and six months ended June 30, 2014, include $38.6 million related to agreements with insurance companies for the recovery of expenses FHN incurred in connection with the Sentinel litigation matter which was settled in 2011.