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TIMESHARE FINANCING RECEIVABLES - Schedule of Gross Timeshare Financing Receivables by Origination Year and Average FICO Score (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Originated
Financing Receivable, Recorded Investment [Line Items]
2026	$ 490
2025	1,584
2024	850
2023	368
2022	253
Prior	219
Timeshare financing receivables, gross	3,764		$ 3,665
2026	0
2025	1
2024	6
2023	19
2022	15
Prior	14
Total	55	$ 20
Originated | 700+
Financing Receivable, Recorded Investment [Line Items]
2026	343
2025	1,096
2024	559
2023	239
2022	172
Prior	141
Timeshare financing receivables, gross	2,550		2,492
Originated | 600-699
Financing Receivable, Recorded Investment [Line Items]
2026	91
2025	322
2024	186
2023	84
2022	57
Prior	43
Timeshare financing receivables, gross	783		756
Originated | Less than 600
Financing Receivable, Recorded Investment [Line Items]
2026	13
2025	34
2024	14
2023	9
2022	6
Prior	5
Timeshare financing receivables, gross	81		74
Originated | No score
Financing Receivable, Recorded Investment [Line Items]
2026	43
2025	132
2024	91
2023	36
2022	18
Prior	30
Timeshare financing receivables, gross	350		343
Acquired
Financing Receivable, Recorded Investment [Line Items]
2026	0
2025	0
2024	10
2023	182
2022	133
Prior	269
Timeshare financing receivables, gross	594		649
2026	0
2025	0
2024	0
2023	5
2022	3
Prior	7
Total	15	$ 63
Acquired | 700+
Financing Receivable, Recorded Investment [Line Items]
2026	0
2025	0
2024	7
2023	114
2022	77
Prior	137
Timeshare financing receivables, gross	335		366
Acquired | 600-699
Financing Receivable, Recorded Investment [Line Items]
2026	0
2025	0
2024	3
2023	50
2022	42
Prior	81
Timeshare financing receivables, gross	176		187
Acquired | Less than 600
Financing Receivable, Recorded Investment [Line Items]
2026	0
2025	0
2024	0
2023	1
2022	2
Prior	10
Timeshare financing receivables, gross	13		12
Acquired | No score
Financing Receivable, Recorded Investment [Line Items]
2026	0
2025	0
2024	0
2023	17
2022	12
Prior	41
Timeshare financing receivables, gross	$ 70		$ 84

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