Quarterly report pursuant to Section 13 or 15(d)

Background and Basis of Presentation (Narrative) (Details)

v3.21.2
Background and Basis of Presentation (Narrative) (Details)
$ in Millions
3 Months Ended 9 Months Ended
Jan. 05, 2021
USD ($)
Sep. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Sep. 30, 2021
USD ($)
segment
brand
Sep. 30, 2020
USD ($)
Background [Line Items]              
Number of Reportable Segments | segment           2  
Business Acquisition [Line Items]              
Payments to acquire business           $ 37 $ 0
Restructuring Cost and Reserve [Line Items]              
Provision for loan losses           $ 120 391
Debt Instrument [Line Items]              
Number of operating segments | segment           2  
Secured Revolving Credit Facility due May 2023 | Revolving Credit Facility              
Debt Instrument [Line Items]              
Debt instrument, face amount   $ 1,000       $ 1,000  
Travel and Membership              
Background [Line Items]              
Number of brands | brand           3  
Revolving Credit Facility | Secured Revolving Credit Facility due May 2023 | Revolving Credit Facility              
Debt Instrument [Line Items]              
Debt instrument, face amount   1,000       $ 1,000  
COVID-19 [Member]              
Restructuring Cost and Reserve [Line Items]              
Total COVID-19 Impact   (12)   $ 31   (28) 377
COVID-19 [Member] | Vacation ownership interest sales              
Restructuring Cost and Reserve [Line Items]              
Provision for loan losses   (21)     $ 225 (47) 225
COVID-19 [Member] | Cost/(recovery) of vacation ownership interest [Member]              
Restructuring Cost and Reserve [Line Items]              
Estimated inventory recoveries during the period   (8)     $ 55 (17) 55
COVID-19 [Member] | Travel and Membership              
Restructuring Cost and Reserve [Line Items]              
Total COVID-19 Impact   0   $ 11   0 110
COVID-19 [Member] | Travel and Membership | Vacation ownership interest sales              
Restructuring Cost and Reserve [Line Items]              
Provision for loan losses   0       0 0
COVID-19 [Member] | Travel and Membership | Cost/(recovery) of vacation ownership interest [Member]              
Restructuring Cost and Reserve [Line Items]              
Estimated inventory recoveries during the period   $ 0       $ 0 $ 0
Travel + Leisure              
Business Acquisition [Line Items]              
Business Combination, Consideration Transferred $ 100            
Payments to acquire business $ 35   $ 20