Business Segments - Schedule of Segment Operating Performance Reconciled to Consolidated Amounts (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		$ 466	$ 427	$ 1,370	$ 1,357
Real Estate and Financing Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		324	291	939	967
Resort Operations and Club Management Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		99	100	303	280
Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		432	399	1,271	1,271
Operating segments | Real Estate and Financing Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		324	291	939	967
Operating segments | Resort Operations and Club Management Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	[1]	108	108	332	304
Segment Reconciling Items
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		43	36	128	110
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	[1]	$ (9)	$ (8)	$ (29)	$ (24)

[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 $9 million and $8 million for the three months ended September 30, 2019 and 2018, respectively, and $29 million and $24 million for the nine months ended September 30, 2019 and 2018, respectively.