Property and Equipment - Additional Information (Details) $ in Millions	9 Months Ended
Sep. 30, 2020 USD ($)
Property Plant And Equipment Gross [Abstract]
Timeshare units transfer from property and equipment to inventory	$ 301

Timeshare units transfer from property and equipment to inventory recorded as non cash operating activity.

No definition available.

Name:	hgv_TimeshareUnitsTransferFromPropertyAndEquipmentToInventory
Namespace Prefix:	hgv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration