Cash deposit for future pledging of qualified collateral.

No definition available.

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

- Definition

Debt instrument maturity year.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Financing receivable weighted average maturities year.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Financing Receivable, Weighted Average Remaining Term

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

Time-sharing Transactions, Weighted Average Interest Rate for Notes Receivable

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
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+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Publisher FASB
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Balance Type:	na
Period Type:	duration

- Definition

Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This is the principal amount outstanding for securitized loans only (across all types of loans).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 4
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The receivable or note face amount less the unamortized discount or premium.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Stated interest rate of notes receivable from time-sharing transactions.

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Timeshare Financing Receivables - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	9 Months Ended	12 Months Ended
	Aug. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash deposit for future pledging of qualified collateral	$ 21
Financing receivable, weighted average interest rate (as a percent)		12.43%
Financing receivable, weighted average remaining term (in years)		7 years 9 months 18 days
Financing receivable weighted average maturities year		2034
Timeshare financing receivable not accruing interest		$ 68	$ 69
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)		3.90%
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)		20.50%
2.34 Percent Notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt instrument, stated interest rate	2.34%
2.54 Percent Notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt instrument, stated interest rate	2.54%
2.84 Percent Notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt instrument, stated interest rate	2.84%
Non-recourse Debt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross timeshare receivables securing the Timeshare Facility		$ 24	$ 171
Timeshare financing receivables securitized	$ 300
Debt instrument stated maturity date	Jul. 25, 2033
Non-recourse Debt \| 2.34 Percent Notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt Instrument, Face Amount	$ 216
Debt instrument, stated interest rate	2.34%
Non-recourse Debt \| 2.54 Percent Notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt Instrument, Face Amount	$ 50
Debt instrument, stated interest rate	2.54%
Non-recourse Debt \| 2.84 Percent Notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt Instrument, Face Amount	$ 34
Debt instrument, stated interest rate	2.84%
Non-recourse Debt \| Securitized Debt with a rate of 2.280%, due 2026
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt instrument, stated interest rate		2.28%	2.28%
Debt instrument, maturity year		2026	2026