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LEASES - Schedule of Rent Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Minimum rentals	$ 30	$ 28	$ 34
Contingent rentals	20	11	4
Total	$ 50	$ 39	$ 38

X

- Definition

Operating Lease And Rent Expense Net

+ References

No definition available.

+ Details

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

X

- Definition

Operating leases and rent expense contingent rentals.

+ References

No definition available.

+ Details

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

X

- Definition

Operating leases and rent expense minimum rentals.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	duration