VACATION OWNERSHIP NOTES RECEIVABLE - Legacy-ILG Vacation Ownership Notes Receivable, Brand and FICO score prior year (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	$ 454	$ 439
Acquired | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	34
Acquired | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	28	26
Acquired | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	239	230
Acquired | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	181	177
Acquired | 700
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	223	216
Acquired | 700 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	19
Acquired | 700 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	16	15
Acquired | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	99	95
Acquired | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	105	103
Acquired | 600 - 699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	156	151
Acquired | 600 - 699 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	11
Acquired | 600 - 699 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	10	10
Acquired | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	87	83
Acquired | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	58	57
Acquired | 600
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	22	20
Acquired | 600 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
Acquired | 600 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1	1
Acquired | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	16	15
Acquired | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	5	4
Acquired | No Score
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	53	52
Acquired | No Score | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	3
Acquired | No Score | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1	0
Acquired | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	37	37
Acquired | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	13	13
Legacy-ILG | Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	464	428
Legacy-ILG | Originated | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	24	22
Legacy-ILG | Originated | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	229	208
Legacy-ILG | Originated | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	211	198
Legacy-ILG | Originated | 700
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	246	235
Legacy-ILG | Originated | 700 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	17	16
Legacy-ILG | Originated | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	103	97
Legacy-ILG | Originated | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	126	122
Legacy-ILG | Originated | 600 - 699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	126	113
Legacy-ILG | Originated | 600 - 699 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	7	6
Legacy-ILG | Originated | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	67	61
Legacy-ILG | Originated | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	52	46
Legacy-ILG | Originated | 600
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	20	18
Legacy-ILG | Originated | 600 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0	0
Legacy-ILG | Originated | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	14	13
Legacy-ILG | Originated | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	6	5
Legacy-ILG | Originated | No Score
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	72	62
Legacy-ILG | Originated | No Score | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0	0
Legacy-ILG | Originated | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	45	37
Legacy-ILG | Originated | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	27	$ 25
2020 | Acquired | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | 700 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | 600 - 699 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | 600 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | No Score | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Acquired | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Legacy-ILG | Originated | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	5
2020 | Legacy-ILG | Originated | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	31
2020 | Legacy-ILG | Originated | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	46
2020 | Legacy-ILG | Originated | 700 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	4
2020 | Legacy-ILG | Originated | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	14
2020 | Legacy-ILG | Originated | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	26
2020 | Legacy-ILG | Originated | 600 - 699 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
2020 | Legacy-ILG | Originated | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	7
2020 | Legacy-ILG | Originated | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	8
2020 | Legacy-ILG | Originated | 600 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Legacy-ILG | Originated | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
2020 | Legacy-ILG | Originated | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
2020 | Legacy-ILG | Originated | No Score | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2020 | Legacy-ILG | Originated | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	9
2020 | Legacy-ILG | Originated | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	11
2019 | Acquired | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | 700 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | 600 - 699 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | 600 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | No Score | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Acquired | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Legacy-ILG | Originated | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	16
2019 | Legacy-ILG | Originated | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	157
2019 | Legacy-ILG | Originated | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	137
2019 | Legacy-ILG | Originated | 700 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	11
2019 | Legacy-ILG | Originated | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	71
2019 | Legacy-ILG | Originated | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	83
2019 | Legacy-ILG | Originated | 600 - 699 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	5
2019 | Legacy-ILG | Originated | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	46
2019 | Legacy-ILG | Originated | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	36
2019 | Legacy-ILG | Originated | 600 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Legacy-ILG | Originated | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	11
2019 | Legacy-ILG | Originated | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	4
2019 | Legacy-ILG | Originated | No Score | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2019 | Legacy-ILG | Originated | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	29
2019 | Legacy-ILG | Originated | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	14
2018 | Acquired | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	7
2018 | Acquired | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	68
2018 | Acquired | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	47
2018 | Acquired | 700 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	5
2018 | Acquired | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	27
2018 | Acquired | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	28
2018 | Acquired | 600 - 699 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	2
2018 | Acquired | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	22
2018 | Acquired | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	13
2018 | Acquired | 600 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2018 | Acquired | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	9
2018 | Acquired | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	3
2018 | Acquired | No Score | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2018 | Acquired | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	10
2018 | Acquired | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	3
2018 | Legacy-ILG | Originated | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	3
2018 | Legacy-ILG | Originated | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	41
2018 | Legacy-ILG | Originated | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	28
2018 | Legacy-ILG | Originated | 700 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	2
2018 | Legacy-ILG | Originated | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	18
2018 | Legacy-ILG | Originated | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	17
2018 | Legacy-ILG | Originated | 600 - 699 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
2018 | Legacy-ILG | Originated | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	14
2018 | Legacy-ILG | Originated | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	8
2018 | Legacy-ILG | Originated | 600 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2018 | Legacy-ILG | Originated | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	2
2018 | Legacy-ILG | Originated | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
2018 | Legacy-ILG | Originated | No Score | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2018 | Legacy-ILG | Originated | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	7
2018 | Legacy-ILG | Originated | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	2
2017 | Acquired | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	7
2017 | Acquired | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	62
2017 | Acquired | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	47
2017 | Acquired | 700 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	4
2017 | Acquired | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	27
2017 | Acquired | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	28
2017 | Acquired | 600 - 699 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	2
2017 | Acquired | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	22
2017 | Acquired | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	15
2017 | Acquired | 600 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
2017 | Acquired | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	3
2017 | Acquired | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
2017 | Acquired | No Score | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Acquired | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	10
2017 | Acquired | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	3
2017 | Legacy-ILG | Originated | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | 700 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | 600 - 699 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | 600 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | No Score | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2017 | Legacy-ILG | Originated | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Acquired | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	5
2016 | Acquired | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	40
2016 | Acquired | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	31
2016 | Acquired | 700 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	3
2016 | Acquired | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	18
2016 | Acquired | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	18
2016 | Acquired | 600 - 699 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	2
2016 | Acquired | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	15
2016 | Acquired | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	11
2016 | Acquired | 600 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Acquired | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
2016 | Acquired | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Acquired | No Score | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Acquired | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	6
2016 | Acquired | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	2
2016 | Legacy-ILG | Originated | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | 700 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | 600 - 699 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | 600 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | No Score | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2016 | Legacy-ILG | Originated | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Acquired | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	15
2015 & Prior | Acquired | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	69
2015 & Prior | Acquired | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	56
2015 & Prior | Acquired | 700 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	7
2015 & Prior | Acquired | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	27
2015 & Prior | Acquired | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	31
2015 & Prior | Acquired | 600 - 699 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	5
2015 & Prior | Acquired | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	28
2015 & Prior | Acquired | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	19
2015 & Prior | Acquired | 600 | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Acquired | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	3
2015 & Prior | Acquired | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	1
2015 & Prior | Acquired | No Score | Hyatt and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	3
2015 & Prior | Acquired | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	11
2015 & Prior | Acquired | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	5
2015 & Prior | Legacy-ILG | Originated | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | 700 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | 700 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | 700 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | 600 - 699 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | 600 - 699 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | 600 - 699 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | 600 | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | 600 | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | 600 | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | No Score | Hyatt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | No Score | Sheraton
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	0
2015 & Prior | Legacy-ILG | Originated | No Score | Westin
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable	$ 0