ACCOUNTS RECEIVABLE - Schedule of Changes in Allowance (Details) $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2024	$ 74
Current period provision for expected credit losses	40
Write-offs charged against the allowance	(15)
Balance as of June 30, 2025	99
Fee-for-service commissions
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2024	24
Current period provision for expected credit losses	4
Write-offs charged against the allowance	(5)
Balance as of June 30, 2025	23
Real Estate Sales and Financing Segment
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2024	49
Current period provision for expected credit losses	23
Write-offs charged against the allowance	(10)
Balance as of June 30, 2025	62
Resort and club management
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2024	1
Current period provision for expected credit losses	13
Write-offs charged against the allowance	0
Balance as of June 30, 2025	$ 14