INTANGIBLE ASSETS - Schedule of Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,539	$ 1,704
Accumulated Amortization	(652)	(546)
Net Carrying Amount	1,887	1,158
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	48	18
Accumulated Amortization	(20)	(18)
Net Carrying Amount	28	0
Management contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,819	1,340
Accumulated Amortization	(412)	(347)
Net Carrying Amount	1,407	993
Club member relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	175	139
Accumulated Amortization	(67)	(57)
Net Carrying Amount	108	82
Capitalized software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	242	207
Accumulated Amortization	(144)	(124)
Net Carrying Amount	98	$ 83
Marketing agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	209
Accumulated Amortization	(7)
Net Carrying Amount	202
Other contract-related intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	46
Accumulated Amortization	(2)
Net Carrying Amount	$ 44