The amount of fee paid per order.

No definition available.

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Namespace Prefix:	ung_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of units per Basket.

+ References

No definition available.

+ Details

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Namespace Prefix:	ung_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Significant Accounting Policies [Line Items]

+ References

No definition available.

+ Details

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- Definition

The number of each class of partnership units outstanding at the balance sheet date. Units represent shares of ownership of the general, limited, and preferred partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 4.C)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-4

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 217
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482663/740-10-55-217

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-15

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)			3 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	Jan. 23, 2024	Jan. 04, 2018	Mar. 31, 2025 USD ($) shares
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Amount of interest expense or penalties recognized \| $			$ 0
Fee paid by authorized participants for each order placed to create one or more Creation Baskets or to redeem one or more baskets \| $			$ 1,000
Reverse share split	0.25	0.04
General Partner
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Shares held by USCF \| shares			0
Redemption Baskets
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Number of units per basket \| shares			100,000