CAPITAL STOCK - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	Dec. 31, 2024	Sep. 20, 2024	Mar. 31, 2025	Mar. 31, 2024	Jan. 31, 2025	Jan. 31, 2022
Class of Stock [Line Items]
Preferred stock, par value (USD per share)	$ 0.01		$ 0.01
Preferred stock, redemption price (in USD per share)			$ 25.00
Preferred stock
Class of Stock [Line Items]
Authorized amount of stock available for repurchase (up to)	$ 1,600.0
Stock repurchase program, number of shares authorized to be repurchased (in shares)	63,500,000
Series F Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (USD per share)	$ 0.01
Stock repurchase program, number of shares authorized to be repurchased (in shares)	28,800,000
Preferred stock dividend rate, percentage	6.95%		6.95%
Series G Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (USD per share)	$ 0.01
Stock repurchase program, number of shares authorized to be repurchased (in shares)	17,000,000
Preferred stock dividend rate, percentage	6.50%		6.50%
Series I
Class of Stock [Line Items]
Preferred stock, par value (USD per share)	$ 0.01
Stock repurchase program, number of shares authorized to be repurchased (in shares)	17,700,000
Preferred stock dividend rate, percentage	6.75%		6.75%
At-the-market Sale Program
Class of Stock [Line Items]
Aggregate stock offering price (up to)		$ 1,500.0
Sale of stock, shares issued (in shares)			23,300,000	0
Proceeds from sale of stock			$ 495.7
Share Repurchase Program
Class of Stock [Line Items]
Authorized amount of stock available for repurchase (up to)					$ 1,500.0	$ 1,500.0
Shares repurchased (in shares)			0	0