Timeshare Financing Receivables - Schedule of Change in Allowance For Financing Receivables Losses (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022		Mar. 31, 2021
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Provision for financing receivables losses		$ 31		$ 16
Originated
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, beginning balance		280	[1]	211
Provision for financing receivables losses	[2]	31		16
Write-offs		(25)		(20)
Securitization	[3]	16
Allowance for loan loss, ending balance		302	[1]	207
Acquired
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, beginning balance		482	[1]	0
Provision for financing receivables losses				0
Write-offs		(6)		0
Securitization	[3]	(15)
Allowance for loan loss, ending balance		$ 461	[1]	$ 0

[1] Acquired timeshare financing receivables include all timeshare financing receivables of Legacy-Diamond as of the Acquisition Date. Originated timeshare financing receivables include all Legacy-HGV timeshare financing receivables and Legacy-Diamond timeshare financing receivables originated after the Acquisition Date.

[2] Includes incremental provision for financing receivables losses, net of activity related to the repurchase of defaulted and upgraded securitized timeshare financing receivables.

[3] Represents the initial change in allowance resulting from upgrades of Acquired loans. Upgraded Acquired loans and their related allowance are included in the Originated portfolio segment.