Accounts Receivable - Summary of Accounts Receivable, Net of Allowance for Credit Losses (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances	$ 109	$ 174
Fee-for-Service Commission
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances	23
Real Estate and Financing
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances	8
Resort and Club Operations
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances	32
Tax Receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances	42
Other Receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net of allowances	$ 4