Business Segments - Schedule of Segment Operating Performance Reconciled to Consolidated Amounts (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		$ 235	$ 351
Real Estate and Financing Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		123	206
Resort Operations and Club Management Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		77	96
Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		203	310
Operating segments | Real Estate and Financing Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		123	206
Operating segments | Resort Operations and Club Management Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	[1],[2]	80	104
Segment Reconciling Items
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		35	49
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	[1],[2]	$ (3)	$ (8)

[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 $3 million and $8 million for the three months ended March 31, 2021 and 2020, respectively.  

[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 months ended March 31, 2021 and 2020.