EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net income	$ 639	$ 752	$ 2,077	$ 10,952
Preferred stock dividends	15	15	46	44
Net income available to common stockholders, basic	624	737	2,031	10,908
Net income available to common shareholders, diluted	$ 624	$ 737	$ 2,031	$ 10,908
Weighted average common shares outstanding
Basic shares outstanding (in shares)	14,375,974	14,528,310	14,480,874	14,527,718
Stock-based award (in shares)	0	10,823	1,045	11,665
Diluted shares outstanding (in shares)	14,375,974	14,539,133	14,481,919	14,539,383
Earnings per common share, basic (in dollars per share)	$ 43.42	$ 50.71	$ 140.27	$ 750.79
Earnings per common share, diluted (in dollars per share)	$ 43.42	$ 50.67	$ 140.26	$ 750.19