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v3.25.2

INVENTORY - Narrative (Details) $ in Millions | 6 Months Ended
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Jun. 30, 2025 USD ($)
Inventory Disclosure [Abstract] |
Timeshare units transfer from property and equipment to inventory | $ 48

X
- Definition Timeshare Units Transfer From Property And Equipment To Inventory + References No definition available. + Details
Name: | hgv_TimeshareUnitsTransferFromPropertyAndEquipmentToInventory
Namespace Prefix: | hgv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_InventoryDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration