EARNINGS PER SHARE - Summary of Computation Earnings Per Common Share Using Two Class Method (Details) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended		12 Months Ended
	Sep. 30, 2024 USD ($) $ / shares shares	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2023 USD ($) $ / shares shares	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2024 USD ($) day $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2023 $ / shares
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income	$ 69	$ 69	$ 45	$ 54	$ 48	$ 26	$ 183	$ 128
Less stock dividend attributable to Series B Preferred Stock	0			(11)			(7)	(33)
Less conversion of Series B Preferred Stock	0			0			(372)	0
Net income (loss) attributable to common shareholders	$ 62			$ 35			$ (196)	$ 75
Weighted average shares outstanding - basic (in shares) | shares	274,640,368			235,418,566			265,308,881	234,996,055
Income (loss) per common share - basic (in dollars per share) | $ / shares	$ 0.23			$ 0.15			$ (0.74)	$ 0.32
Diluted earnings per common share:
Net income	$ 69	$ 69	$ 45	$ 54	$ 48	$ 26	$ 183	$ 128
Less stock dividend attributable to Series B Preferred Stock	0			(11)			(7)	(33)
Less conversion of Series B Preferred Stock	0			0			(372)	0
Net income (loss) attributable to common shareholders - diluted	$ 62			$ 39			$ (196)	$ 85
Weighted average shares outstanding - basic (in shares) | shares	274,640,368			235,418,566			265,308,881	234,996,055
Dilutive securities:
Restricted stock units, warrants, and stock options (in shares) | shares	1,279,583			420,465			0	308,745
Shares issuable upon conversion of Series B Preferred Shares (in shares) | shares	0			32,520,000			0	32,520,000
Shares issuable pursuant to the Series A Preferred Stock dividend (in shares) | shares	0			1,679,291			0	1,099,296
Weighted average shares outstanding - diluted (in shares) | shares	275,919,951			270,038,322			265,308,881	268,924,096
Income (loss) per common share - diluted (in dollars per share) | $ / shares	$ 0.23			$ 0.15			$ (0.74)	$ 0.32
Common stock, weighted average price, threshold (in days) | day							10
Common stock, average price, trigger period (in days) | day							10
Previous dividend price per share (in dollars per share) | $ / shares	$ 33.9465						$ 33.9465		$ 24.3968
Series A Preferred Stock
Dilutive securities:
Percentage of annual dividend rate							20.00%
Annual dividend shares preferred stock (in shares) | shares	141,194,638						141,194,638
Series A Preferred Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Less income allocable to Preferred Stock	$ (7)			$ (4)			$ 0	$ (10)
Diluted earnings per common share:
Less income allocable to Series A Preferred Stock	$ (7)			$ (4)			$ 0	$ (10)
Dilutive securities:
Antidilutive securities excluded from computation of earnings per share (in shares) | shares	4,000,000			4,000,000			4,000,000	4,000,000
Series B Preferred Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Less income allocable to Preferred Stock	$ 0			$ (4)			$ 0	$ (10)
Employee Stock Option
Dilutive securities:
Antidilutive securities excluded from computation of earnings per share (in shares) | shares							125,000
Restricted Stock Units RSUs
Dilutive securities:
Antidilutive securities excluded from computation of earnings per share (in shares) | shares							1,279,583