ACCOUNTS RECEIVABLE - Schedule of Changes in Allowance (Details) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2023	$ 60
Current period provision for expected credit losses	30
Write-offs charged against the allowance	(19)
Balance as of September 30, 2024	71
Fee-for-service commissions
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2023	23
Current period provision for expected credit losses	6
Write-offs charged against the allowance	(8)
Balance as of September 30, 2024	21
Real Estate Sales and Financing Segment
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2023	34
Current period provision for expected credit losses	11
Write-offs charged against the allowance	(10)
Balance as of September 30, 2024	35
Resort and club management
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2023	3
Current period provision for expected credit losses	13
Write-offs charged against the allowance	(1)
Balance as of September 30, 2024	$ 15