VACATION OWNERSHIP NOTES RECEIVABLE - Aging of Recorded Investment in Principal, Vacation Ownership Notes Receivable (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Legacy MVW
Financing Receivable, Past Due
Vacation ownership notes receivable	$ 1,329	$ 1,389
Legacy MVW | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	274	339
Legacy MVW | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	1,055	1,050
Legacy MVW | 31 – 90 days past due
Financing Receivable, Past Due
Vacation ownership notes receivable	26	33
Legacy MVW | 31 – 90 days past due | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	6	8
Legacy MVW | 31 – 90 days past due | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	20	25
Legacy MVW | 91 – 150 days past due
Financing Receivable, Past Due
Vacation ownership notes receivable	12	19
Legacy MVW | 91 – 150 days past due | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	4	5
Legacy MVW | 91 – 150 days past due | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	8	14
Legacy MVW | Greater than 150 days past due
Financing Receivable, Past Due
Vacation ownership notes receivable	84	95
Legacy MVW | Greater than 150 days past due | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	84	95
Legacy MVW | Greater than 150 days past due | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	0	0
Legacy MVW | Total past due
Financing Receivable, Past Due
Vacation ownership notes receivable	122	147
Legacy MVW | Total past due | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	94	108
Legacy MVW | Total past due | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	28	39
Legacy MVW | Current
Financing Receivable, Past Due
Vacation ownership notes receivable	1,207	1,242
Legacy MVW | Current | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	180	231
Legacy MVW | Current | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	1,027	1,011
Legacy-ILG and Legacy-Welk
Financing Receivable, Past Due
Vacation ownership notes receivable	1,118	821
Legacy-ILG and Legacy-Welk | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	349	240
Legacy-ILG and Legacy-Welk | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	769	581
Legacy-ILG and Legacy-Welk | 31 – 90 days past due
Financing Receivable, Past Due
Vacation ownership notes receivable	40	27
Legacy-ILG and Legacy-Welk | 31 – 90 days past due | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	16	8
Legacy-ILG and Legacy-Welk | 31 – 90 days past due | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	24	19
Legacy-ILG and Legacy-Welk | 91 – 120 days past due
Financing Receivable, Past Due
Vacation ownership notes receivable	10	9
Legacy-ILG and Legacy-Welk | 91 – 120 days past due | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	4	2
Legacy-ILG and Legacy-Welk | 91 – 120 days past due | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	6	7
Legacy-ILG and Legacy-Welk | Greater than 120 days past due
Financing Receivable, Past Due
Vacation ownership notes receivable	114	112
Legacy-ILG and Legacy-Welk | Greater than 120 days past due | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	110	107
Legacy-ILG and Legacy-Welk | Greater than 120 days past due | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	4	5
Legacy-ILG and Legacy-Welk | Total past due
Financing Receivable, Past Due
Vacation ownership notes receivable	164	148
Legacy-ILG and Legacy-Welk | Total past due | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	130	117
Legacy-ILG and Legacy-Welk | Total past due | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	34	31
Legacy-ILG and Legacy-Welk | Current
Financing Receivable, Past Due
Vacation ownership notes receivable	954	673
Legacy-ILG and Legacy-Welk | Current | Non-securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	219	123
Legacy-ILG and Legacy-Welk | Current | Securitized
Financing Receivable, Past Due
Vacation ownership notes receivable	$ 735	$ 550