Accounts Receivable - Summary of Accounts Receivable, Net of Allowance for Credit Losses (Details) - USD ($) $ in Millions		Sep. 30, 2021	Dec. 31, 2020
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances		$ 278	$ 119
Fee-for-Service Commission
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances	[1]	67	22
Real Estate and Financing
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances		44	11
Resort and Club Operations
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances		73	23
Tax Receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances		85	54
Other Receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances	[2]	$ 9	$ 9

[1] Net of allowance.

[2] For the periods ended September 30, 2021 and December 31, 2020, includes individually insignificant accounts receivable recognized in the ordinary course of business and allowances for which are also individually insignificant. For the period ended September 30, 2021, also includes other receivables primarily associated with miscellaneous sales and marketing activity.