Transactions with Former Parent and Former Subsidiaries	9 Months Ended
Sep. 30, 2018
Related Party Transaction, Due from (to) Related Party [Abstract]
Transactions with Former Parent and Former Subsidiaries	Separation and Transaction Costs On May 31, 2018, the Company completed the spin-off of its hotel business. This transaction resulted in operations being held by two separate, publicly traded companies as discussed in Note 1—Background and Basis of Presentation. Prior to the spin-off, the Company completed the sale of its European vacation rentals business. During the three and nine months ended September 30, 2018, the Company incurred $35 million and $198 million of expenses, respectively, in connection with the spin-off of the hotel business which are reflected within continuing operations and include related costs of the spin-off, of which $30 million and $191 million were related to stock compensation modification expense, severance and other employee costs offset, in part, by favorable foreign currency. In addition, these costs include certain impairment charges related to the separation including property sold to Wyndham Hotels. Additionally, during the nine months ended September 30, 2018, the Company incurred $93 million of separation related expenses in connection with the hotel spin-off and $19 million of transaction costs related to the European vacation rentals business. These expenses are reflected within discontinued operations and include legal, consulting and auditing fees, stock compensation modification expense, severance, and other employee-related costs. During the three and nine months ended September 30, 2017, the Company incurred $16 million of expenses associated with the planned spin-off of the hotel business and the exploration of strategic alternatives for the European vacation rentals business which are reflected within continuing operations. Additionally, during this same time period the Company incurred $8 million of separation related costs that are included within discontinued operations. These costs include legal, consulting and auditing fees, stock compensation modification expense, severance, and other employee-related costs. Transactions with Former Parent and Former Subsidiaries Matters Related to Cendant Pursuant to the Cendant Separation and Distribution Agreement, the Company entered into certain guarantee commitments with Cendant and Cendant’s former subsidiary, Realogy. These guarantee arrangements primarily relate to certain contingent litigation liabilities, contingent tax liabilities, and Cendant contingent and other corporate liabilities, of which Wyndham Worldwide assumed 37.5% of the responsibility while Cendant’s former subsidiary Realogy is responsible for the remaining 62.5%. As a result of the Wyndham Worldwide separation, Wyndham Hotels agreed to retain one third of Cendant’s contingent and other corporate liabilities and associated costs; therefore, Wyndham Destinations is effectively responsible for 25% of such matters subsequent to the separation. Since Cendant’s separation, Cendant settled the majority of the lawsuits pending on the date of the separation. As of September 30, 2018, the Cendant separation and related liabilities of $16 million are comprised of $13 million for tax liabilities, $1 million for other contingent and corporate liabilities and $2 million of liabilities where the calculated guarantee amount exceeded the contingent liability assumed at the separation date. These liabilities were recorded within accrued expenses and other liabilities on the Condensed Consolidated Balance Sheet. As of December 31, 2017, the Company had $16 million of Cendant separation-related liabilities, which were recorded within accrued expenses and other liabilities on the Condensed Consolidated Balance Sheet. Matters Related to Wyndham Hotels In connection with the spin-off of the hotel business on May 31, 2018, Wyndham Destinations entered into several agreements with Wyndham Hotels that govern the relationship of the parties following the distribution including the Separation and Distribution Agreement, the Employee Matters Agreements, the Tax Matters Agreement, the Transition Services Agreement and the License, Development and Noncompetition Agreement. In accordance with these agreements, Wyndham Hotels assumed one-third and Wyndham Destinations assumed two-thirds of certain contingent and other corporate liabilities of the Company incurred prior to the distribution, including liabilities of the Company related to certain terminated or divested businesses, certain general corporate matters, and any actions with respect to the separation plan. Likewise, Wyndham Hotels is entitled to receive one-third and Wyndham Destinations is entitled to receive two-thirds of the proceeds from certain contingent and other corporate assets of the Company arising or accrued prior to the distribution. The Company conveyed the lease for its former corporate headquarters located in Parsippany, New Jersey to Wyndham Hotels, which resulted in the removal of a $66 million capital lease obligation and a $43 million asset. Wyndham Destinations entered into a transition service agreement with Wyndham Hotels, pursuant to which the companies agreed to provide each other certain transitional services including human resources, facilities, payroll, tax, information technology, information management and related services, treasury, finance, sourcing, and employee benefits administration on an interim, transitional basis. Matters Related to the European Vacation Rentals Business In connection with the sale of the Company’s European vacation rentals business, the Company and Wyndham Hotels agreed to certain post-closing credit support for the benefit of certain credit card service providers, a British travel association, and certain regulatory authorities to allow them to continue providing services or regulatory approval to the business. Such post-closing credit support included a guarantee of up to $180 million through June 30, 2019, which has an estimated fair value of $2 million. Such post-closing credit support may be called if the business fails to meet its primary obligation to pay amounts when due. The Buyer has provided an indemnification to Wyndham Destinations in the event that the post-closing credit support (other than the guarantee by Wyndham Destinations of up to $180 million) is enforced or called upon. At closing, the Company agreed to provide additional post-closing credit support to a British travel association and regulatory authorities by September 30, 2018. An escrow was established at closing and a portion of it was subsequently agreed to be released in exchange for a secured bonding facility and a perpetual guarantee of $46 million. One-third of the $46 million escrow release is payable to Wyndham Hotels pending potential post-closing adjustments. The estimated fair value of the guarantee was $22 million at September 30, 2018. The Company established a $7 million receivable, representing the amount that would be due from Wyndham Hotels, which resulted in an $8 million reduction in retained earnings. The Company also deposited $5 million into an escrow account, which will be returned to the Company on May 9, 2019, if the gross limit of the Barclays Bank PLC (“Barclays”) pound sterling cash pooling arrangement with the Buyer remains at least £10 million and security is not demanded by Barclays. If any further security is demanded by Barclays, the Company must pay an additional £1 million into the escrow account. In addition, the Company agreed to indemnify the Buyer against certain claims and assessments, including income tax, value-added tax and other tax matters, related to the operations of the European vacation rentals business for the periods prior to the transaction. The estimated fair value of the indemnifications total $43 million at September 30, 2018. Wyndham Hotels provided certain post-closing credit support primarily for the benefit of a British travel association in the form of guarantees which are primarily denominated in Pound sterling of up to an approximate $81 million on a perpetual basis. The estimated fair value of such guarantees was $41 million at September 30, 2018. Wyndham Destinations is responsible for two-thirds of these guarantees. Wyndham Hotels is required to maintain minimum credit ratings of Ba2 for Moody’s and BB for S&P. If Wyndham Hotels drops below these minimum credit ratings, Wyndham Destinations would be required to post a letter of credit (or equivalent support) for the amount of the Wyndham Hotels guarantee. The estimated fair value of the guarantees and indemnifications for which Wyndham Destinations is responsible related to the sale of the European vacation rentals business, including the two-thirds portion related to guarantees provided by Wyndham Hotels, totaled $96 million and was recorded in accrued expenses and other liabilities at September 30, 2018. A receivable of $23 million was included in other assets at September 30, 2018 representing the portion of these guarantees and indemnifications for which Wyndham Hotels is responsible. During the third quarter of 2018, Compass IV Limited, an affiliate of Platinum Equity, LLC, proposed certain post-closing adjustments netting to approximately $60 million which could serve to reduce the net consideration received from the sale of the European vacation rentals business. While the Company intends to vigorously dispute these proposed adjustments, at this time we cannot reasonably estimate the probability or amount of the potential liability owed to Compass IV Limited, if any. Any actual liability would be split two-thirds and one-third between the Company and Wyndham Hotels, respectively, and the impact would be included in discontinued operations. Related Party Transactions During August 2018, the Company provided notification to the owner trustee of its intent to exercise the purchase option for the company aircraft at fair market value. In connection with that purchase, the Company entered into an agreement to sell the company aircraft to its former CEO and current Chairman of the Board at a price equivalent to the purchase price.

Separation and Transaction Costs

On May 31, 2018, the Company completed the spin-off of its hotel business. This transaction resulted in operations being held by two separate, publicly traded companies as discussed in Note 1—Background and Basis of Presentation. Prior to the spin-off, the Company completed the sale of its European vacation rentals business.

During the three and nine months ended September 30, 2018, the Company incurred $35 million and $198 million of expenses, respectively, in connection with the spin-off of the hotel business which are reflected within continuing operations and include related costs of the spin-off, of which $30 million and $191 million were related to stock compensation modification expense, severance and other employee costs offset, in part, by favorable foreign currency. In addition, these costs include certain impairment charges related to the separation including property sold to Wyndham Hotels.

Additionally, during the nine months ended September 30, 2018, the Company incurred $93 million of separation related expenses in connection with the hotel spin-off and $19 million of transaction costs related to the European vacation rentals business. These expenses are reflected within discontinued operations and include legal, consulting and auditing fees, stock compensation modification expense, severance, and other employee-related costs.

During the three and nine months ended September 30, 2017, the Company incurred $16 million of expenses associated with the planned spin-off of the hotel business and the exploration of strategic alternatives for the European vacation rentals business which are reflected within continuing operations. Additionally, during this same time period the Company incurred $8 million of separation related costs that are included within discontinued operations. These costs include legal, consulting and auditing fees, stock compensation modification expense, severance, and other employee-related costs.

Transactions with Former Parent and Former Subsidiaries

Matters Related to Cendant

Pursuant to the Cendant Separation and Distribution Agreement, the Company entered into certain guarantee commitments with Cendant and Cendant’s former subsidiary, Realogy. These guarantee arrangements primarily relate to certain contingent litigation liabilities, contingent tax liabilities, and Cendant contingent and other corporate liabilities, of which Wyndham Worldwide assumed 37.5% of the responsibility while Cendant’s former subsidiary Realogy is responsible for the remaining 62.5%. As a result of the Wyndham Worldwide separation, Wyndham Hotels agreed to retain one third of Cendant’s contingent and other corporate liabilities and associated costs; therefore, Wyndham Destinations is effectively responsible for 25% of such matters subsequent to the separation. Since Cendant’s separation, Cendant settled the majority of the lawsuits pending on the date of the separation.

As of September 30, 2018, the Cendant separation and related liabilities of $16 million are comprised of $13 million for tax liabilities, $1 million for other contingent and corporate liabilities and $2 million of liabilities where the calculated guarantee amount exceeded the contingent liability assumed at the separation date. These liabilities were recorded within accrued expenses and other liabilities on the Condensed Consolidated Balance Sheet. As of December 31, 2017, the Company had $16 million of Cendant separation-related liabilities, which were recorded within accrued expenses and other liabilities on the Condensed Consolidated Balance Sheet.

Matters Related to Wyndham Hotels

In connection with the spin-off of the hotel business on May 31, 2018, Wyndham Destinations entered into several agreements with Wyndham Hotels that govern the relationship of the parties following the distribution including the Separation and Distribution Agreement, the Employee Matters Agreements, the Tax Matters Agreement, the Transition Services Agreement and the License, Development and Noncompetition Agreement.

In accordance with these agreements, Wyndham Hotels assumed one-third and Wyndham Destinations assumed two-thirds of certain contingent and other corporate liabilities of the Company incurred prior to the distribution, including liabilities of the Company related to certain terminated or divested businesses, certain general corporate matters, and any actions with respect to the separation plan. Likewise, Wyndham Hotels is entitled to receive one-third and Wyndham Destinations is entitled to receive two-thirds of the proceeds from certain contingent and other corporate assets of the Company arising or accrued prior to the distribution.

The Company conveyed the lease for its former corporate headquarters located in Parsippany, New Jersey to Wyndham Hotels, which resulted in the removal of a $66 million capital lease obligation and a $43 million asset.

Wyndham Destinations entered into a transition service agreement with Wyndham Hotels, pursuant to which the companies agreed to provide each other certain transitional services including human resources, facilities, payroll, tax, information technology, information management and related services, treasury, finance, sourcing, and employee benefits administration on an interim, transitional basis.

Matters Related to the European Vacation Rentals Business

In connection with the sale of the Company’s European vacation rentals business, the Company and Wyndham Hotels agreed to certain post-closing credit support for the benefit of certain credit card service providers, a British travel association, and certain regulatory authorities to allow them to continue providing services or regulatory approval to the business. Such post-closing credit support included a guarantee of up to $180 million through June 30, 2019, which has an estimated fair value of $2 million. Such post-closing credit support may be called if the business fails to meet its primary obligation to pay amounts when due. The Buyer has provided an indemnification to Wyndham Destinations in the event that the post-closing credit support (other than the guarantee by Wyndham Destinations of up to $180 million) is enforced or called upon.

At closing, the Company agreed to provide additional post-closing credit support to a British travel association and regulatory authorities by September 30, 2018. An escrow was established at closing and a portion of it was subsequently agreed to be released in exchange for a secured bonding facility and a perpetual guarantee of $46 million. One-third of the $46 million escrow release is payable to Wyndham Hotels pending potential post-closing adjustments. The estimated fair value of the guarantee was $22 million at September 30, 2018. The Company established a $7 million receivable, representing the amount that would be due from Wyndham Hotels, which resulted in an $8 million reduction in retained earnings.

The Company also deposited $5 million into an escrow account, which will be returned to the Company on May 9, 2019, if the gross limit of the Barclays Bank PLC (“Barclays”) pound sterling cash pooling arrangement with the Buyer remains at least £10 million and security is not demanded by Barclays. If any further security is demanded by Barclays, the Company must pay an additional £1 million into the escrow account.

In addition, the Company agreed to indemnify the Buyer against certain claims and assessments, including income tax, value-added tax and other tax matters, related to the operations of the European vacation rentals business for the periods prior to the transaction. The estimated fair value of the indemnifications total $43 million at September 30, 2018.

Wyndham Hotels provided certain post-closing credit support primarily for the benefit of a British travel association in the form of guarantees which are primarily denominated in Pound sterling of up to an approximate $81 million on a perpetual basis. The estimated fair value of such guarantees was $41 million at September 30, 2018. Wyndham Destinations is responsible for two-thirds of these guarantees. Wyndham Hotels is required to maintain minimum credit ratings of Ba2 for Moody’s and BB for S&P. If Wyndham Hotels drops below these minimum credit ratings, Wyndham Destinations would be required to post a letter of credit (or equivalent support) for the amount of the Wyndham Hotels guarantee.

The estimated fair value of the guarantees and indemnifications for which Wyndham Destinations is responsible related to the sale of the European vacation rentals business, including the two-thirds portion related to guarantees provided by Wyndham Hotels, totaled $96 million and was recorded in accrued expenses and other liabilities at September 30, 2018. A receivable of $23 million was included in other assets at September 30, 2018 representing the portion of these guarantees and indemnifications for which Wyndham Hotels is responsible.

During the third quarter of 2018, Compass IV Limited, an affiliate of Platinum Equity, LLC, proposed certain post-closing adjustments netting to approximately $60 million which could serve to reduce the net consideration received from the sale of the European vacation rentals business. While the Company intends to vigorously dispute these proposed adjustments, at this time we cannot reasonably estimate the probability or amount of the potential liability owed to Compass IV Limited, if any. Any actual liability would be split two-thirds and one-third between the Company and Wyndham Hotels, respectively, and the impact would be included in discontinued operations.