Business Segments - Schedule of Segment Operating Performance Reconciled to Consolidated Amounts (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues		$ 334	$ 123	$ 569	$ 474
Real Estate and Financing Segment
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues		194	56	317	262
Resort Operations and Club Management Segment
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues		102	44	179	140
Operating segments
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues		301	100	504	410
Operating segments | Real Estate and Financing Segment
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues		194	56	317	262
Operating segments | Resort Operations and Club Management Segment
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues	[1],[2]	107	44	187	148
Segment Reconciling Items
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues		38	23	73	72
Intersegment eliminations
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues		$ (5)	$ 0	$ (8)	$ (8)

[1] (1) Includes charges to the real estate sales and financing segment from the resort operations and club management segment for fulfillment of discounted marketing package stays at resorts. These charges totaled $5 million for the three months ended June 30, 2021. There were no such charges related to this for three months ended June 30, 2020. For the six months ended June 30, 2021 and 2020, these charges totaled $8 million.

[2] (2) Includes charges to the real estate sales and financing segment from the resort operations and club management segment for the rental of model units to show prospective buyers. These charges totaled less than $1 million for the three and six months ended June 30, 2021 and 2020.