VACATION OWNERSHIP NOTES RECEIVABLE - Origination Year, Vacation Ownership Notes Receivable, Brand and FICO score prior year (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total vacation ownership notes receivable	$ 2,974	$ 2,976
Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total vacation ownership notes receivable	2,871	2,860
Originated \| 700 +
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total vacation ownership notes receivable	1,735	1,723
Originated \| 600 - 699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total vacation ownership notes receivable	700	709
Originated \| Less Than 600
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total vacation ownership notes receivable	59	60
Originated \| No Score
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total vacation ownership notes receivable	377	368
Originated \| Marriott Vacation Ownership
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	228
2024	846
2023	569
2022	390
2021 & Prior	553
Total vacation ownership notes receivable	2,586	2,570
Gross write-offs
2025	1
2024	2
2023	18
2022	11
2021 & Prior	13
Total	45
Originated \| Marriott Vacation Ownership \| 700 +
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	135
2024	499
2023	341
2022	234
2021 & Prior	318
Total vacation ownership notes receivable	1,527	1,513
Originated \| Marriott Vacation Ownership \| 600 - 699
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	38
2024	175
2023	138
2022	110
2021 & Prior	167
Total vacation ownership notes receivable	628	634
Originated \| Marriott Vacation Ownership \| Less Than 600
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	4
2024	17
2023	12
2022	9
2021 & Prior	15
Total vacation ownership notes receivable	57	58
Originated \| Marriott Vacation Ownership \| No Score
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	51
2024	155
2023	78
2022	37
2021 & Prior	53
Total vacation ownership notes receivable	374	365
Originated \| Hyatt Vacation Ownership
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	40
2024	101
2023	65
2022	51
2021 & Prior	28
Total vacation ownership notes receivable	285	290
Gross write-offs
2025	0
2024	2
2023	4
2022	4
2021 & Prior	1
Total	11
Originated \| Hyatt Vacation Ownership \| 700 +
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	31
2024	73
2023	47
2022	37
2021 & Prior	20
Total vacation ownership notes receivable	208	210
Originated \| Hyatt Vacation Ownership \| 600 - 699
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	8
2024	26
2023	17
2022	14
2021 & Prior	7
Total vacation ownership notes receivable	72	75
Originated \| Hyatt Vacation Ownership \| Less Than 600
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	1
2024	1
2023	0
2022	0
2021 & Prior	0
Total vacation ownership notes receivable	2	2
Originated \| Hyatt Vacation Ownership \| No Score
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	0
2024	1
2023	1
2022	0
2021 & Prior	1
Total vacation ownership notes receivable	$ 3	$ 3

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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