Organization - Additional Information (Details)	Jun. 30, 2021 Property Unit
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of timeshare properties \| Property	62
Number of units in timeshare properties \| Unit	500,968

Number of timeshare properties as of balance sheet date.

No definition available.

Name:	hgv_NumberOfTimeshareProperties
Namespace Prefix:	hgv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant