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DEBT AND NON-RECOURSE DEBT - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Apr. 08, 2024	Mar. 31, 2024	Dec. 31, 2023	Jan. 17, 2024	Jan. 10, 2024
Debt Instrument [Line Items]
Remaining borrowing capacity		$ 293
Total notional values of interest rate swaps		550
Accumulated other comprehensive loss, qualifying as hedge		$ 48	$ 42
Debt instrument, average interest rate		6.963%	6.649%
Reserves Related to Non-Recourse Debt
Debt Instrument [Line Items]
Restricted cash		$ 62	$ 48
Junior subordinated debentures \| Minimum
Debt Instrument [Line Items]
Debt instrument, average interest rate		3.80%
Junior subordinated debentures \| Maximum
Debt Instrument [Line Items]
Debt instrument, average interest rate		4.90%
SOFR Overnight Index Swap Rate \| Junior subordinated debentures
Debt Instrument [Line Items]
Interest rate on revolving credit facility		0.26%
Senior Notes \| Senior notes with a rate of 6.625%, due 2032
Debt Instrument [Line Items]
Debt instrument face amount				$ 900	$ 900
Debt instrument, stated interest rate (as a percent)		6.625%			6.625%
Secured Debt
Debt Instrument [Line Items]
Junior subordinated debentures outstanding		$ 1,560	$ 1,482
Debt instrument, average interest rate		4.969%	5.095%
Secured Debt \| Timeshare Facility Due 2027
Debt Instrument [Line Items]
Junior subordinated debentures outstanding		$ 290	$ 400
Debt instrument, average interest rate		6.54%
Remaining borrowing capacity		$ 460
Revolving Credit Facility \| Junior subordinated debentures
Debt Instrument [Line Items]
Junior subordinated debentures outstanding		70	0
Revolving Credit Facility \| Senior Notes \| Senior notes with a rate of 6.625%, due 2032
Debt Instrument [Line Items]
Junior subordinated debentures outstanding		900	$ 0
Revolving Credit Facility \| Senior Secured Credit Facilities
Debt Instrument [Line Items]
Letters of credit outstanding, amount		9
Cash Collateral Secured Credit Facilities
Debt Instrument [Line Items]
Letters of credit outstanding, amount		$ 1
Term Loan \| SOFR Overnight Index Swap Rate
Debt Instrument [Line Items]
Interest rate on revolving credit facility		2.75%
Derivative fixed interest rate		1.55%
Term Loan \| SOFR Overnight Index Swap Rate \| Subsequent Event
Debt Instrument [Line Items]
Interest rate on revolving credit facility	2.50%