Preferred Stock And Other Capital	12 Months Ended
Dec. 31, 2011
Preferred Stock And Other Capital [Abstract]
Preferred Stock And Other Capital	Note 12 q Preferred Stock and Other Capital FHN Preferred Stock and Warrant On November 14, 2008, FHN issued and sold 866,540 preferred shares of Fixed Rate Cumulative Perpetual Preferred Stock, Series CPP, along with a Warrant to purchase common stock. The issuance occurred in connection with, and was governed by, the Treasury Capital Purchase Program ("Capital Purchase Program") administered by the U.S. Treasury ("UST") under the Troubled Asset Relief Program ("TARP"). In connection with the issuance of the Preferred Shares, FHN also issued a Warrant to purchase 12,743,235 common shares with an exercise price of $10.20 per share. The Warrant was immediately exercisable and was set to expire ten years after issuance. As a result of the stock dividends distributed through January 1, 2011, the Warrant was adjusted to cover 14,842,321 common shares at a purchase price of $8.757 per share. On December 22, 2010, subsequent to offerings of common equity and senior debt which raised more than $750 million, FHN repurchased all of the Preferred Shares and remitted the accrued and unpaid dividends. In first quarter 2011, FHN completed the purchase and cancellation of the Warrant to purchase common stock. FHN paid the UST $79.7 million to purchase the Warrant. The UST no longer holds any securities of FHN under the Capital Purchase Program. Subsidiary Preferred Stock On September 14, 2000, FT Real Estate Securities Company, Inc. ("FTRESC"), an indirect subsidiary of FHN, issued 50 shares of 9.50 percent Cumulative Preferred Stock, Class B ("Class B Preferred Shares"), with a liquidation preference of $1.0 million per share. An aggregate total of 47 Class B Preferred Shares have been sold privately to nonaffiliates. These securities qualify as Tier 2 capital and are presented in the Consolidated Statements of Condition as Term borrowings. FTRESC is a real estate investment trust ("REIT") established for the purpose of acquiring, holding, and managing real estate mortgage assets. Dividends on the Class B Preferred Shares are cumulative and are payable semi-annually. The Class B Preferred Shares are mandatorily redeemable on March 31, 2031, and redeemable at the discretion of FTRESC in the event that the Class B Preferred Shares cannot be accounted for as Tier 2 regulatory capital or there is more than an insubstantial risk that dividends paid with respect to the Class B Preferred Shares will not be fully deductible for tax purposes. They are not subject to any sinking fund and are not convertible into any other securities of FTRESC, FHN, or any of its subsidiaries. The shares are, however, automatically exchanged at the direction of the Office of the Comptroller of the Currency for preferred stock of FTBNA, having substantially the same terms as the Class B Preferred Shares in the event FTBNA becomes undercapitalized, insolvent, or in danger of becoming undercapitalized. First Horizon Preferred Funding, LLC and First Horizon Preferred Funding II, LLC have each issued $1.0 million of Class B Preferred Shares. On December 31, 2011, 2010, and 2009, the amount of Class B Preferred Shares that are perpetual in nature that was recognized as Noncontrolling interest on the Consolidated Statements of Condition was $.3 million for all periods. The remaining balance has been eliminated in consolidation. On March 23, 2005, FTBNA issued 300,000 shares of Class A Non-Cumulative Perpetual Preferred Stock ("Class A Preferred Stock") with a liquidation preference of $1,000 per share. These securities qualify as Tier 1 capital. On December 31, 2011, 2010, and 2009, $294.8 million of Class A Preferred Stock was recognized as Noncontrolling interest on the Consolidated Statements of Condition for all periods. Due to the nature of the subsidiary preferred stock issued by First Horizon Preferred Funding, LLC, First Horizon Preferred Funding II, LLC, and FTBNA, all components of Other comprehensive income/(loss) included in the Consolidated Statements of Equity and Income/(loss) from discontinued operations, net of tax included in the Consolidated Statements of Income, have been attributed solely to FHN as the controlling interest holder. The component of Income from continuing operations attributable to FHN as the controlling interest holder is $122.6 million, $61.5 million, and $(246.6) million during 2011, 2010, and 2009, respectively.

Note 12 q Preferred Stock and Other Capital

FHN Preferred Stock and Warrant

On November 14, 2008, FHN issued and sold 866,540 preferred shares of Fixed Rate Cumulative Perpetual Preferred Stock, Series CPP, along with a Warrant to purchase common stock. The issuance occurred in connection with, and was governed by, the Treasury Capital Purchase Program ("Capital Purchase Program") administered by the U.S. Treasury ("UST") under the Troubled Asset Relief Program ("TARP"). In connection with the issuance of the Preferred Shares, FHN also issued a Warrant to purchase 12,743,235 common shares with an exercise price of $10.20 per share. The Warrant was immediately exercisable and was set to expire ten years after issuance. As a result of the stock dividends distributed through January 1, 2011, the Warrant was adjusted to cover 14,842,321 common shares at a purchase price of $8.757 per share. On December 22, 2010, subsequent to offerings of common equity and senior debt which raised more than $750 million, FHN repurchased all of the Preferred Shares and remitted the accrued and unpaid dividends. In first quarter 2011, FHN completed the purchase and cancellation of the Warrant to purchase common stock. FHN paid the UST $79.7 million to purchase the Warrant. The UST no longer holds any securities of FHN under the Capital Purchase Program.

Subsidiary Preferred Stock

On September 14, 2000, FT Real Estate Securities Company, Inc. ("FTRESC"), an indirect subsidiary of FHN, issued 50 shares of 9.50 percent Cumulative Preferred Stock, Class B ("Class B Preferred Shares"), with a liquidation preference of $1.0 million per share. An aggregate total of 47 Class B Preferred Shares have been sold privately to nonaffiliates. These securities qualify as Tier 2 capital and are presented in the Consolidated Statements of Condition as Term borrowings. FTRESC is a real estate investment trust ("REIT") established for the purpose of acquiring, holding, and managing real estate mortgage assets. Dividends on the Class B Preferred Shares are cumulative and are payable semi-annually.

The Class B Preferred Shares are mandatorily redeemable on March 31, 2031, and redeemable at the discretion of FTRESC in the event that the Class B Preferred Shares cannot be accounted for as Tier 2 regulatory capital or there is more than an insubstantial risk that dividends paid with respect to the Class B Preferred Shares will not be fully deductible for tax purposes. They are not subject to any sinking fund and are not convertible into any other securities of FTRESC, FHN, or any of its subsidiaries. The shares are, however, automatically exchanged at the direction of the Office of the Comptroller of the Currency for preferred stock of FTBNA, having substantially the same terms as the Class B Preferred Shares in the event FTBNA becomes undercapitalized, insolvent, or in danger of becoming undercapitalized.

First Horizon Preferred Funding, LLC and First Horizon Preferred Funding II, LLC have each issued $1.0 million of Class B Preferred Shares. On December 31, 2011, 2010, and 2009, the amount of Class B Preferred Shares that are perpetual in nature that was recognized as Noncontrolling interest on the Consolidated Statements of Condition was $.3 million for all periods. The remaining balance has been eliminated in consolidation.

On March 23, 2005, FTBNA issued 300,000 shares of Class A Non-Cumulative Perpetual Preferred Stock ("Class A Preferred Stock") with a liquidation preference of $1,000 per share. These securities qualify as Tier 1 capital. On December 31, 2011, 2010, and 2009, $294.8 million of Class A Preferred Stock was recognized as Noncontrolling interest on the Consolidated Statements of Condition for all periods.

Due to the nature of the subsidiary preferred stock issued by First Horizon Preferred Funding, LLC, First Horizon Preferred Funding II, LLC, and FTBNA, all components of Other comprehensive income/(loss) included in the Consolidated Statements of Equity and Income/(loss) from discontinued operations, net of tax included in the Consolidated Statements of Income, have been attributed solely to FHN as the controlling interest holder. The component of Income from continuing operations attributable to FHN as the controlling interest holder is $122.6 million, $61.5 million, and $(246.6) million during 2011, 2010, and 2009, respectively.