Business Segments - Schedule of Segment Operating Performance Reconciled to Consolidated Amounts (Parenthetical) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		$ 351	$ 450
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	[1],[2]	(8)	(9)
Intersegment eliminations | Maximum
Segment Reporting, Revenue Reconciling Item [Line Items]
Rental expense for model units		1	1
Intersegment eliminations | Billing and Collection Services
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		$ (8)	$ (9)

[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 $8 million and $9 million for the three months ended March 31, 2020 and 2019, 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, 2020 and 2019.