EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Net income	$ 568	$ 639	$ 1,626	$ 2,077
Preferred stock dividends	14	15	43	46
Net income available to common stockholders, basic	554	624	1,583	2,031
Net income available to common shareholders, diluted	$ 554	$ 624	$ 1,583	$ 2,031
Weighted average common shares outstanding
Basic shares outstanding (in shares)	12,849,339	14,375,974	13,217,940	14,480,874
Stock-based award (in shares)	0	0	0	1,045
Diluted shares outstanding (in shares)	12,849,339	14,375,974	13,217,940	14,481,919
Basic (in dollars per share)	$ 43.08	$ 43.42	$ 119.70	$ 140.27
Diluted (in dollars per share)	$ 43.08	$ 43.42	$ 119.70	$ 140.26