TIMESHARE FINANCING RECEIVABLES - Financing Receivables by Origination Year and Average FICO Score (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	$ 1,159		$ 1,224
Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	1,363		1,244
Total	44
Acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	539		709
Total	94	$ 63
Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	539		709
Total	94
Originated
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	1,983		1,759
Total	55	$ 52
Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	620		515
Total	11
2023 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	458
2023	0
2023 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	0
2023	0
2023 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	241
2023	0
2022 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	373
2022	6
2022 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	0
2022	0
2022 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	285
2022	5
2021 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	166
2021	10
2021 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	96
2021	9
2021 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	94
2021	6
2020 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	65
2020	5
2020 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	113
2020	18
2020 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	0
2020	0
Year of Origination 2019 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	114
2019	8
Year of Origination 2019 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	130
2019	30
Year of Origination 2019 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	0
2019	0
Year of Origination Prior | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	187
Prior	15
Year of Origination Prior | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	200
Prior	37
Year of Origination Prior | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	0
Prior	0
700+ | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	835
700+ | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	278		373
700+ | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	377		321
700+ | 2023 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	290
700+ | 2023 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	0
700+ | 2023 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	151
700+ | 2022 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	233
700+ | 2022 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	0
700+ | 2022 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	171
700+ | 2021 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	102
700+ | 2021 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	50
700+ | 2021 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	55
700+ | 2020 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	36
700+ | 2020 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	60
700+ | 2020 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	0
700+ | Year of Origination 2019 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	67
700+ | Year of Origination 2019 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	71
700+ | Year of Origination 2019 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	0
700+ | Year of Origination Prior | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	107
700+ | Year of Origination Prior | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	97
700+ | Year of Origination Prior | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	0
600-699 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	304
600-699 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	203		265
600-699 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	207		163
600-699 | 2023 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	100
600-699 | 2023 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	0
600-699 | 2023 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	77
600-699 | 2022 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	86
600-699 | 2022 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	0
600-699 | 2022 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	98
600-699 | 2021 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	38
600-699 | 2021 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	36
600-699 | 2021 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	32
600-699 | 2020 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	14
600-699 | 2020 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	39
600-699 | 2020 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	0
600-699 | Year of Origination 2019 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	24
600-699 | Year of Origination 2019 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	50
600-699 | Year of Origination 2019 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	0
600-699 | Year of Origination Prior | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	42
600-699 | Year of Origination Prior | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	78
600-699 | Year of Origination Prior | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	0
Less than 600 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	38
Less than 600 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	45		55
Less than 600 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	29		26
Less than 600 | 2023 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	10
Less than 600 | 2023 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	0
Less than 600 | 2023 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	10
Less than 600 | 2022 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	11
Less than 600 | 2022 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	0
Less than 600 | 2022 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	13
Less than 600 | 2021 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	5
Less than 600 | 2021 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	9
Less than 600 | 2021 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	6
Less than 600 | 2020 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	2
Less than 600 | 2020 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	10
Less than 600 | 2020 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	0
Less than 600 | Year of Origination 2019 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	3
Less than 600 | Year of Origination 2019 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	8
Less than 600 | Year of Origination 2019 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	0
Less than 600 | Year of Origination Prior | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	7
Less than 600 | Year of Origination Prior | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	18
Less than 600 | Year of Origination Prior | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	0
No score | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	186
No score | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	13		16
No score | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Timeshare financing receivables, gross	7		$ 5
No score | 2023 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	58
No score | 2023 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	0
No score | 2023 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Fiscal Year	3
No score | 2022 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	43
No score | 2022 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	0
No score | 2022 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
One year before current fiscal year	3
No score | 2021 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	21
No score | 2021 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	1
No score | 2021 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Two years before current fiscal year	1
No score | 2020 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	13
No score | 2020 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	4
No score | 2020 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Three years prior to current fiscal year	0
No score | Year of Origination 2019 | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	20
No score | Year of Origination 2019 | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	1
No score | Year of Origination 2019 | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Four years prior to current fiscal year	0
No score | Year of Origination Prior | Legacy-HGV
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	31
No score | Year of Origination Prior | Acquired | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	7
No score | Year of Origination Prior | Originated | Legacy-Diamond
Financing Receivable, Recorded Investment, Past Due [Line Items]
Prior	$ 0