Regulatory Capital And Restrictions (Tables)

12 Months Ended

Dec. 31, 2012

Regulatory Capital And Restrictions [Abstract]

Summary Of Actual Capital Amounts And Ratios

	First Horizon National				First Tennessee Bank
	Corporation				National Association
(Dollars in thousands)		Amount	Ratio			Amount	Ratio
On December 31, 2012
Actual:
Total Capital	$	3,212,008	15.94	%	$	3,691,056	18.49	%
Tier 1 Capital		2,640,776	13.10			3,122,204	15.64
Leverage		2,640,776	10.63			3,122,204	12.66
Minimum Requirement for Capital Adequacy Purposes:
Total Capital		1,612,274	8.00			1,597,033	8.00
Tier 1 Capital		806,137	4.00			798,517	4.00
Leverage		994,114	4.00			986,266	4.00
Minimum Requirement to be Well Capitalized Under Prompt Corrective Action Provisions:
Total Capital						1,996,292	10.00
Tier 1 Capital						1,197,775	6.00
Leverage						1,232,833	5.00
On December 31, 2011
Actual:
Total Capital	$	3,602,271	17.99	%	$	3,976,672	20.05	%
Tier 1 Capital		2,850,452	14.23			3,247,268	16.37
Leverage		2,850,452	11.41			3,247,268	13.12
Minimum Requirement for Capital Adequacy Purposes:
Total Capital		1,602,113	8.00			1,586,752	8.00
Tier 1 Capital		801,056	4.00			793,376	4.00
Leverage		998,891	4.00			990,281	4.00
Minimum Requirement to be Well Capitalized Under Prompt Corrective Action Provisions:
Total Capital						1,983,440	10.00
Tier 1 Capital						1,190,064	6.00
Leverage						1,237,851	5.00