CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021		Mar. 31, 2021
Common stock - cash dividends declared per share (in dollars per share)	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15		$ 0.15
Common stock repurchased under share repurchase program	$ 3	$ 8	$ 2	$ 146	$ 64	[1]	$ 62	[1]
Preferred Stock
Number of shares issued in transaction (in shares)			4,936		1,500
Preferred stock issuance, net of offering cost (in dollars per share)			$ 100,000		$ 100,000
First Horizon Share Repurchase Program
Common stock repurchased under share repurchase program				$ 141	$ 57		$ 59

[1] Includes $59 million, $57 million and $141 million repurchased under share repurchase programs for the three months ended March 31, 2021, June 30, 2021, and September 30, 2021, respectively.