Debt Instrument, Redemption Face Amount

No definition available.

Name:	ugi_DebtInstrumentRedemptionFaceAmount
Namespace Prefix:	ugi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Receivables Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

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

- Definition

Receivables Facility, Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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

- Definition

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

+ References

+ Details

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

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

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Namespace Prefix:	us-gaap_
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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.

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Balance Type:	na
Period Type:	duration

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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- Definition

The cash outflow for a loan, supported by a promissory note, granted to related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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+ Details

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Debt (Details) - USD ($)		1 Months Ended	3 Months Ended	6 Months Ended
Debt (Details) - USD ($)	Feb. 04, 2025	Oct. 31, 2024	Mar. 31, 2025	Mar. 31, 2025	Apr. 30, 2025	Nov. 30, 2024	Sep. 30, 2024	Jun. 30, 2024
AmeriGas Partners
Debt Instrument [Line Items]
Intercompany loan	$ 221,000,000
Notes payable			$ 200,000,000	$ 200,000,000
Senior Notes Due June 1, 2035 \| Senior Notes \| Mountaineer \| Subsequent event
Debt Instrument [Line Items]
Principal amount					$ 50,000,000
Interest rate					6.11%
Senior Notes Due June 1, 2037 \| Senior Notes \| Mountaineer \| Subsequent event
Debt Instrument [Line Items]
Principal amount					$ 20,000,000
Interest rate					6.21%
Senior Notes Due 2029 \| Senior Notes \| Utilities
Debt Instrument [Line Items]
Principal amount						$ 50,000,000
Interest rate						5.24%
Senior Notes Due 2034 \| Senior Notes \| Utilities
Debt Instrument [Line Items]
Principal amount						$ 125,000,000
Interest rate						5.52%
Energy Services Accounts Receivable Securitization Facility \| Energy Services \| Receivables Facility
Debt Instrument [Line Items]
Option to increase		$ 50,000,000
Energy Services Accounts Receivable Securitization Facility \| Energy Services \| Period October 18, 2024 to April 30, 2025 \| Receivables Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		150,000,000
Energy Services Accounts Receivable Securitization Facility \| Energy Services \| Period May 1, 2025 to October 17, 2025 \| Receivables Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		75,000,000
UGI Corporation Credit Facility Agreement \| Credit Agreement \| Revolver
Debt Instrument [Line Items]
Proceeds	$ 221,000,000
Maximum borrowing capacity		475,000,000
UGI Corporation Credit Facility Agreement \| Credit Agreement \| Letters of credit
Debt Instrument [Line Items]
Maximum borrowing capacity		10,000,000
UGI Corporation Credit Facility Agreement \| Credit Agreement \| Secured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity		400,000,000
5.50 Percent Senior Notes \| Senior Notes \| AmeriGas Partners
Debt Instrument [Line Items]
Interest rate			5.50%	5.50%
Early redemption notice, aggregate principal			$ 218,000,000	$ 218,000,000
AmeriGas Senior Secured Revolving Credit Facility \| Credit Agreement \| Revolver
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 300,000,000					$ 200,000,000
UGI Corporation Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Principal amount								$ 700,000,000
Interest rate								5.00%
Interest expense			$ 10,000,000	$ 20,000,000
Effective interest rate (as a percentage)			5.62%	5.62%
UGI Corporation Senior Notes \| Senior Notes \| Level 2
Debt Instrument [Line Items]
Long-term debt			$ 904,000,000	$ 904,000,000			$ 744,000,000