Business Segments - Schedule of Segment Revenues Reconciled to Consolidated Amounts (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	$ 450	$ 367
Real Estate and Financing Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	307	241
Resort Operations and Club Management Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	101	98
Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	417	339
Operating segments | Real Estate and Financing Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	307	241
Operating segments | Resort Operations and Club Management Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	110	98
Segment Reconciling Items
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	42	36
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	$ (9)	$ (8)