EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Earnings Per Share [Abstract]
Net income	$ 575	$ 707	$ 1,058	$ 1,438
Preferred stock dividends	14	16	29	31
Net income available to common stockholders, basic	561	691	1,029	1,407
Net income available to common shareholders, diluted	$ 561	$ 691	$ 1,029	$ 1,407
Weighted average common shares outstanding
Basic shares outstanding (in shares)	13,237,226	14,534,499	13,405,295	14,533,900
Stock-based award (in shares)	0	0	0	1,572
Diluted shares outstanding (in shares)	13,237,226	14,534,499	13,405,295	14,535,472
Earnings per common share, basic (in dollars per share)	$ 42.36	$ 47.54	$ 76.73	$ 96.81
Earnings per common share, diluted (in dollars per share)	$ 42.36	$ 47.54	$ 76.73	$ 96.80