STOCKHOLDERS' EQUITY - Dividends (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Class of Stock [Line Items]
Dividends declared per share of common stock (in usd per share)	$ 0.42	$ 0.42
Common stock dividends declared and paid	$ 197	$ 205
Preferred stock
Preferred stock dividends declared and paid	$ 30	$ 23
Series B
Preferred stock
Dividends declared per share of preferred stock (in usd per share)	$ 21.72	$ 0
Series C
Preferred stock
Dividends declared per share of preferred stock (in usd per share)	15.94	15.94
Series D
Preferred stock
Dividends declared per share of preferred stock (in usd per share)	15.88	15.88
Series E
Preferred stock
Dividends declared per share of preferred stock (in usd per share)	12.50	12.50
Series F
Preferred stock
Dividends declared per share of preferred stock (in usd per share)	14.13	14.13
Series G
Preferred stock
Dividends declared per share of preferred stock (in usd per share)	$ 10.00	$ 10.00
Dividends Declared
Class of Stock [Line Items]
Common stock dividends declared and paid	$ 197	$ 205
Preferred stock
Preferred stock dividends declared and paid	30	23
Dividends Declared | Series B
Preferred stock
Preferred stock dividends declared and paid	7	0
Dividends Declared | Series C
Preferred stock
Preferred stock dividends declared and paid	5	5
Dividends Declared | Series D
Preferred stock
Preferred stock dividends declared and paid	5	5
Dividends Declared | Series E
Preferred stock
Preferred stock dividends declared and paid	5	5
Dividends Declared | Series F
Preferred stock
Preferred stock dividends declared and paid	5	5
Dividends Declared | Series G
Preferred stock
Preferred stock dividends declared and paid	3	3
Dividends Paid
Class of Stock [Line Items]
Common stock dividends declared and paid	197	205
Preferred stock
Preferred stock dividends declared and paid	31	33
Dividends Paid | Series B
Preferred stock
Preferred stock dividends declared and paid	7	9
Dividends Paid | Series C
Preferred stock
Preferred stock dividends declared and paid	5	5
Dividends Paid | Series D
Preferred stock
Preferred stock dividends declared and paid	5	5
Dividends Paid | Series E
Preferred stock
Preferred stock dividends declared and paid	5	5
Dividends Paid | Series F
Preferred stock
Preferred stock dividends declared and paid	6	6
Dividends Paid | Series G
Preferred stock
Preferred stock dividends declared and paid	$ 3	$ 3