Area Of Property To Be Constructed

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- Definition

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 35
-Paragraph 32
-URI https://asc.fasb.org/extlink&oid=126903467&loc=d3e32787-111569

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(10))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599

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- 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.

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Impairments Associated with Certain Equity Method Investments (Details)	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) mi	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) mi	Jun. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)
Loss from equity investees \| Midstream & Marketing
Schedule of Equity Method Investments [Line Items]
Impairments associated with certain equity method investments		$ 50,000,000	$ 93,000,000	$ 50,000,000	$ 93,000,000
Pennant \| Energy Services
Schedule of Equity Method Investments [Line Items]
Equity method investment ownership percent		47.00%		47.00%
Impairments associated with certain equity method investments		$ 50,000,000
PennEast \| UGI Penn East LLC \| Affiliated Entity
Schedule of Equity Method Investments [Line Items]
Equity method investment ownership percent		20.00%		20.00%
Area of natural gas pipeline to be constructed (in miles) \| mi		120		120
Impairments associated with certain equity method investments	$ 93,000,000
PennEast \| UGI Penn East LLC \| Affiliated Entity \| Level 2
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 0		$ 0		$ 0	$ 0