Deferred Revenues - Schedule of Deferred Revenues (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disaggregation Of Revenue [Line Items]
Deferred revenues	$ 186	$ 95
Deferred VOI sales
Disaggregation Of Revenue [Line Items]
Deferred revenues	100	19
Club Activation Fees
Disaggregation Of Revenue [Line Items]
Deferred revenues	71	63
Other
Disaggregation Of Revenue [Line Items]
Deferred revenues	$ 15	$ 13