Revenue from Contracts with Customers - Additional Information (Details)	3 Months Ended	9 Months Ended
Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($) segment	Dec. 31, 2018 USD ($)
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Number of operating segments \| segment		2
Deferred revenues	$ 165,000,000	$ 165,000,000	$ 95,000,000
Sales of VOIs
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Deferred revenues	49,000,000	49,000,000
Direct selling cost		7,000,000
Direct selling cost to be recognized upon acquisition	16,000,000	16,000,000
Remaining performance obligations			$ 0
Topic 606
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Revenue earned that was included in the contract liabilities balance	$ 16,000,000	$ 94,000,000

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of deferred cost, excluding capitalized cost related to contract with customer; classified as noncurrent.

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Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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