STOCKHOLDERS' EQUITY - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended
	May 23, 2024	May 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Preferred stock, value, issued			$ 2,112	$ 2,014
Preferred stock, issued (in shares)			2,150,000	2,050,000
Preferred stock, par value (in dollars per share)			$ 25	$ 25.00
Series H
Class of Stock [Line Items]
Preferred stock, value, issued	$ 400		$ 391	$ 0
Preferred stock, issued (in shares)	400,000		400,000	0
Preferred stock, dividend rate		9.205%
Preferred stock, par value (in dollars per share)	$ 25.00
Preferred stock, liquidation preference per share (in dollars per share)	$ 1,000		$ 1,000
Proceeds from issuance of stock	$ 391
Redemption option regulatory capital treatment event window	90 days
Series D
Class of Stock [Line Items]
Preferred stock, value, issued			$ 0	$ 293
Preferred stock, issued (in shares)			0	300,000
Preferred stock, dividend rate	7.375%
Preferred stock, liquidation preference per share (in dollars per share)			$ 1,000