CONSOLIDATED CONDENSED STATEMENTS OF EQUITY - USD ($) $ in Thousands		Total	Controlling Interest	Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance, as adjusted		$ 2,705,084	$ 2,409,653	$ 295,431
Balance, January 1 at Dec. 31, 2016		2,705,084	2,409,653	295,431
Adjustment to reflect adoption of ASU 2017-12 at Dec. 31, 2016		0	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		225,361	216,806	8,555
Other comprehensive income/(loss)	[1]	15,270	15,270	0
Comprehensive income/(loss)		240,631	232,076	8,555
Cash dividends declared:
Preferred stock ($4,650 per share for the nine months ended September 30, 2018 and 2017)		(4,650)	(4,650)	0
Common stock ($.36 and $.27 per share for the nine months ended September 30, 2018 and 2017, respectively)		(63,777)	(63,777)	0
Common stock repurchased	[2]	(5,285)	(5,285)	0
Common stock issued for:
Stock options and restricted stock - equity awards		5,132	5,132	0
Acquisition equity adjustment	[3]	0	0	0
Stock-based compensation expense		14,971	14,971	0
Dividends declared - noncontrolling interest of subsidiary preferred stock		(8,555)	0	(8,555)
Other		0	0	0
Balance, September 30 at Sep. 30, 2017		2,883,551	2,588,120	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		71,769
Other comprehensive income/(loss)		5,078
Comprehensive income/(loss)		76,847
Cash dividends declared:
Preferred stock ($4,650 per share for the nine months ended September 30, 2018 and 2017)		(1,550)
Balance, September 30 at Sep. 30, 2017		2,883,551	2,588,120	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance, as adjusted		4,580,555	4,285,124	295,431
Balance, January 1 at Dec. 31, 2017		4,580,488	4,285,057	295,431
Adjustment to reflect adoption of ASU 2017-12 at Dec. 31, 2017		67	67	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		455,702	447,147	8,555
Other comprehensive income/(loss)	[1]	(114,613)	(114,613)	0
Comprehensive income/(loss)		341,089	332,534	8,555
Cash dividends declared:
Preferred stock ($4,650 per share for the nine months ended September 30, 2018 and 2017)		(4,650)	(4,650)	0
Common stock ($.36 and $.27 per share for the nine months ended September 30, 2018 and 2017, respectively)		(118,250)	(118,250)	0
Common stock repurchased	[2]	(23,997)	(23,997)	0
Common stock issued for:
Stock options and restricted stock - equity awards		4,442	4,442	0
Acquisition equity adjustment	[3]	(46,035)	(46,035)	0
Stock-based compensation expense		17,465	17,465	0
Dividends declared - noncontrolling interest of subsidiary preferred stock		(8,555)	0	(8,555)
Other		(133)	(133)	0
Balance, September 30 at Sep. 30, 2018		4,741,931	4,446,500	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		274,716
Other comprehensive income/(loss)		(25,535)
Comprehensive income/(loss)		249,181
Cash dividends declared:
Preferred stock ($4,650 per share for the nine months ended September 30, 2018 and 2017)		(1,550)
Balance, September 30 at Sep. 30, 2018		$ 4,741,931	$ 4,446,500	$ 295,431

[1] Due to the nature of the preferred stock issued by FHN and its subsidiaries, all components of Other comprehensive income/(loss) have been attributed solely to FHN as the controlling interest holder.

[2] 2018 includes $19.0 million repurchased under share repurchase programs.

[3] See Note 2- Acquisitions and Divestitures for additional information.