Regulatory Capital And Restrictions (Tables)

12 Months Ended

Dec. 31, 2016

Regulatory Capital Requirements [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, 2016
Actual:
Total Capital	$	2,926,010	12.24	%	$	2,762,271	11.78	%
Tier 1 Capital		2,671,871	11.17			2,538,382	10.83
Common Equity Tier 1		2,377,987	9.94			2,298,080	9.80
Leverage		2,671,871	9.35			2,538,382	9.16
Minimum Requirement for Capital Adequacy Purposes:
Total Capital		1,913,133	8.00			1,875,780	8.00
Tier 1 Capital		1,434,849	6.00			1,406,835	6.00
Common Equity Tier 1		1,076,137	4.50			1,055,126	4.50
Leverage		1,143,250	4.00			1,108,406	4.00
Minimum Requirement to be Well Capitalized Under Prompt Corrective Action Provisions:
Total Capital						2,344,725	10.00
Tier 1 Capital						1,875,780	8.00
Common Equity Tier 1						1,524,071	6.50
Leverage						1,385,508	5.00
On December 31, 2015
Actual:
Total Capital	$	2,836,715	13.01	%	$	2,768,625	13.09	%
Tier 1 Capital		2,572,141	11.79			2,525,912	11.95
Common Equity Tier 1		2,278,580	10.45			2,284,646	10.81
Leverage		2,572,141	9.85			2,525,912	10.06
Minimum Requirement for Capital Adequacy Purposes:
Total Capital		1,744,961	8.00			1,691,477	8.00
Tier 1 Capital		1,308,721	6.00			1,268,608	6.00
Common Equity Tier 1		981,541	4.50			951,456	4.50
Leverage		1,044,378	4.00			1,004,207	4.00
Minimum Requirement to be Well Capitalized Under Prompt Corrective Action Provisions:
Total Capital						2,114,346	10.00
Tier 1 Capital						1,691,477	8.00
Common Equity Tier 1						1,374,325	6.50
Leverage						1,255,258	5.00