Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Weighted-average common shares outstanding (thousands): Weighted Average Number of Shares Outstanding, Diluted [Abstract] Trading Arrangement: Trading Arrangement [Axis] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Short-Term Debt, Type [Axis] Short-Term Debt, Type [Axis] Title of 12(b) Security Title of 12(b) Security Carrying amount Reported Value Measurement [Member] Subsequent event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Gross amounts offset in the balance sheet Derivative Liability, Subject to Master Netting Arrangement, Asset Offset PA Gas Utility PA Gas Utility [Member] PA Gas Utility Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Residential Residential [Member] Residential Adjustment to Compensation, Amount Adjustment to Compensation Amount Segment Reporting [Abstract] Segment Reporting [Abstract] Derivative instruments Derivative Instruments and Hedges, Noncurrent Other Non-utility, Other [Member] Non-utility, Other [Member] Other current and noncurrent assets Disposal Group, Including Discontinued Operation, Other Assets UGI Common Stock, without par value (authorized — 450,000,000 shares; issued — 217,706,132, 217,033,282 and 216,929,085 shares, respectively) Common Stocks, Including Additional Paid in Capital Regulated Utility Operations Regulated Operation [Member] UGI International Senior Notes UGI International Senior Notes [Member] UGI International Senior Notes Credit Agreement Line of Credit [Member] Restatement Determination Date Restatement Determination Date 2026 Pennsylvania Public Utility Commission For Base Operating Revenues 2026 Pennsylvania Public Utility Commission For Base Operating Revenues [Member] 2026 Pennsylvania Public Utility Commission For Base Operating Revenues Derivative Instrument [Axis] Derivative Instrument [Axis] Net Revenue Increase Net Revenue Increase [Member] Net Revenue Increase Amendment Flag Amendment Flag Current liabilities: Liabilities, Current [Abstract] Provision for uncollectible accounts Accounts Receivable, Credit Loss Expense (Reversal) Schedule of Notional Amounts Related to Open Derivative Contracts Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Inventory [Axis] Inventory [Axis] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Proceeds from short-term debt Proceeds from Short-Term Debt, Maturing in Three Months or Less Disposal Group Classification [Axis] Disposal Group Classification [Axis] Removal costs, net Removal Costs, Net [Member] Removal costs net. Energy Marketing Energy Marketing [Member] Energy Marketing [Member] Loss Contingencies [Table] Loss Contingencies [Table] Pending sale Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] Commercial & Industrial Commercial and Industrial [Member] Commercial and Industrial [Member] Corporate & Other Corporate And Reconciling Items [Member] Corporate And Reconciling Items [Member] Derivative instruments Derivative Instruments and Hedges, Liabilities, Noncurrent Pennsylvania Public Utility Commission For Base Operating Revenues Increase To Base Operating Revenues [Member] Increase To Base Operating Revenues Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] CASH, CASH EQUIVALENTS AND RESTRICTED CASH Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation [Abstract] Entity Address, State or Province Entity Address, State or Province Senior Notes Due 2028 Senior Notes Due 2028 [Member] Senior Notes Due 2028 Utility Regulatory Assets and Liabilities and Regulatory Matters Public Utilities Disclosure [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Foreign currency adjustments (net of tax of $(4), $24, $(8) and $15, respectively) Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Capital expenditures (including the effects of accruals) Segment Reporting, Long-Lived Asset, Expenditure for Addition Intangible assets, net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Notional amount Derivative, Notional Amount Basic (in shares) Weighted-average common shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Receivables Facility Receivables Facility [Member] Receivables Facility Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Loss Contingencies Loss Contingencies [Line Items] Number of reportable segments Number of Reportable Segments Total current liabilities Liabilities, Current 2025 IREP Expected, Prior Year Under-recovery 2025 Infrastructure Replacement and Expansion Plan, Prior Year Under-recovery [Member] 2025 Infrastructure Replacement and Expansion Plan, Prior Year Under-recovery Regulatory Liability [Axis] Regulatory Liability [Axis] Environmental Remediation Contingency [Domain] Environmental Remediation Contingency [Domain] Annual Base Distribution Rate Increase Annual Base Distribution Rate Increase [Member] Annual Base Distribution Rate Increase Short-Term Debt, Type [Domain] Short-Term Debt, Type [Domain] Entity Address, City or Town Entity Address, City or Town Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Total held for sale assets Disposal Group, Including Discontinued Operation, Assets Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Accounting, Policy Basis of Accounting, Policy [Policy Text Block] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Other Midstream Other [Member] Midstream Other [Member] Level 2 Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Environmental remediation expense, before recovery Environmental Remediation Expense, before Recovery Subsequent Event Type [Axis] Subsequent Event Type [Axis] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] WVPSC Public Service Commission of West Virginia [Member] Public Service Commission of West Virginia [Member] Number of subsidiaries acquired with similar histories Number of Subsidiaries Acquired Number of Subsidiaries Acquired Environmental costs Environmental Restoration Costs [Member] Accounting Standards Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] Earnings Per Common Share Earnings Per Share, Policy [Policy Text Block] Schedule of Segment Reporting Information Segment Reporting [Table Text Block] Noncontrolling interests Noncontrolling Interest [Member] Net gains (losses) on derivative instruments tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax PAPUC Pennsylvania Public Utility Commission [Member] Pennsylvania Public Utility Commission Use of Estimates Use of Estimates, Policy [Policy Text Block] Number of injuries Number Of Injuries Number Of Injuries Benefit plans tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Schedule of Regulatory Liabilities Schedule of Regulatory Liabilities [Table Text Block] Total capital investments Public Utilities, Requested Rate Change, Capital Investments Public Utilities, Requested Rate Change, Capital Investments Document Period End Date Document Period End Date Total Utility Utility [Member] Utility [Member] Net change in: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] 2026 IREP Recovery 2026 Infrastructure Replacement and Expansion Plan, Capital Improvements 2027 Through 2031 [Member] 2026 Infrastructure Replacement and Expansion Plan, Capital Improvements 2027 Through 2031 Senior Notes Due 2031 Senior Notes Due 2031 [Member] Senior Notes Due 2031 Percentage of fair value exceeding carrying value Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount Net cash provided (used) by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Held for sale liabilities Disposal Group, Including Discontinued Operation, Liabilities, Current Cash collateral received Cash collateral received Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Principal amount Debt Instrument, Face Amount Total regulatory assets Regulatory Asset Costs and expenses: Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name 2025 IREP Expected 2025 Infrastructure Replacement And Expansion Plan Expected [Member] 2025 Infrastructure Replacement And Expansion Plan Expected Treasury stock, at cost Treasury Stock, Common, Value Net proceeds from the disposition of businesses and assets Proceeds from Sales of Business, Affiliate and Productive Assets Maximum borrowing capacity Receivables Facility, Maximum Borrowing Capacity Receivables Facility, Maximum Borrowing Capacity LPG Distribution Businesses LPG Distribution Businesses [Member] LPG Distribution Businesses Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Name Outstanding Recovery, Individual Name Earnings (loss) per common share attributable to UGI Corporation stockholders: Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Schedule of Shares Used in Computing Basic and Diluted Earnings Per Share Schedule of Weighted Average Number of Shares [Table Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol Number of substations Disposal Group, Including Discontinued Operation, Number of Substations Disposal Group, Including Discontinued Operation, Number of Substations Expenditures for property, plant and equipment Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] 2024 IREP For 2025 2024 Infrastructure Replacement and Expansion Plan, Capital Investments 2025 [Member] 2024 Infrastructure Replacement and Expansion Plan, Capital Investments 2025 Approved rate increase (decrease) Public Utilities, Approved Rate Increase (Decrease), Amount Company Selected Measure Name Company Selected Measure Name Default conversion settlement ratio Debt Instrument, Convertible, Default Conversion Ratio Debt Instrument, Convertible, Default Conversion Ratio Schedule of Restrictions on Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Reacquired Common Stock - employee and director plans Stock Repurchased During Period, Employee And Director Plans, Value Stock Repurchased During Period, Employee and Director Plans, Value Held for sale liabilities: Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent [Abstract] 2026 IREP Expected, Prior Year Under-recovery 2026 Infrastructure Replacement and Expansion Plan, Prior Year Under-recovery [Member] 2026 Infrastructure Replacement and Expansion Plan, Prior Year Under-recovery Non-qualified supplemental postretirement grantor trust investments Non-qualified Supplemental Executive Retirement Plan Non-qualified Supplemental Executive Retirement Plan Schedule of Regulatory Assets [Table] Regulated Operation, Regulatory Asset [Table] Changes in unrealized gains and losses on derivative instruments Net gains (losses) on commodity derivative instruments Unrealized Gain (Loss) on Derivatives UGI Corporation Senior Notes UGI Corporation Senior Notes [Member] UGI Corporation Senior Notes Postretirement Benefit Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Public Utilities, Inventory [Table] Regulated Operation, Inventory [Table] CASH FLOWS FROM OPERATING ACTIVITIES Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted (in shares) Weighted-average common shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Cash dividends on common stock (in USD per share) Common Stock, Dividends, Per Share, Cash Paid Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] State income tax benefits — distribution system repairs Deferred Income Tax Charge [Member] Disposal Group Name [Domain] Disposal Group Name [Domain] Derivative Instruments Derivatives, Policy [Policy Text Block] LPG swaps (in gallons) Derivative, Nonmonetary Notional Amount, Volume Underlying Security Market Price Change Underlying Security Market Price Change, Percent Deferred income tax expense (benefit), net Deferred Income Taxes and Tax Credits Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Regulatory Asset [Axis] Regulatory Asset [Axis] Schedule of Dispositions Disposal Groups, Including Discontinued Operations [Table Text Block] Liabilities: Total derivative liabilities — gross Derivative Liability, Subject to Master Netting Arrangement, before Offset Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Award Timing Predetermined Award Timing Predetermined [Flag] Treasury stock Treasury Stock, Common [Member] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Equity-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] Number of fatalities Number Of Fatalities Number Of Fatalities Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Conversion ratio Debt Instrument, Convertible, Conversion Ratio Incremental shares issuable for stock options, and common stock awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements MGP sites in Pennsylvania Specified Former MGP Sites In Pennsylvania [Member] Specified Former MGP Sites In Pennsylvania Net income (loss) attributable to UGI Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest All Executive Categories All Executive Categories [Member] Regulated Operations [Abstract] Regulated Operations [Abstract] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] 2025 IREP For 2026 2025 Infrastructure Replacement and Expansion Plan, Capital Investments 2026 [Member] 2025 Infrastructure Replacement and Expansion Plan, Capital Investments 2026 Long-term debt Long-Term Debt, Fair Value AOCI Attributable to Parent, Net of Tax AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Accounting Changes and Error Corrections [Abstract] Materials, supplies and other Materials, Supplies and Other [Member] Materials, supplies and other. Income taxes receivable Increase (Decrease) in Income Taxes Receivable Costs and expenses Operating Expenses, Including Costs Of Goods And Services and Depreciation, Depletion And Amortization Operating Expenses, Including Costs Of Goods And Services and Depreciation, Depletion And Amortization Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] AmeriGas Partners Senior Notes AmeriGas Partners Senior Notes [Member] AmeriGas Partners Senior Notes Current maturities of long-term debt Long-Term Debt and Lease Obligation, Current Segment Information Segment Reporting [Text Block] Revenues from external customers Revenues, Prior To Intersegment Effect Revenues, Prior To Intersegment Effect Dividends on Common Stock Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date Hedging Relationship [Axis] Hedging Relationship [Axis] Schedule of Disaggregated Revenues by Reportable Segment Disaggregation of Revenue [Table Text Block] Denominator (thousands of shares): Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Effect of exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Restricted cash Restricted cash Restricted Cash and Cash Equivalent Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Total equity Balance, beginning of period Balance, end of period Equity, Including Portion Attributable to Noncontrolling Interest Public Utilities, Regulatory Proceeding [Domain] Public Utilities, Regulatory Proceeding [Domain] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Disposal Group, Including Discontinued Operations [Line Items] Disposal Group, Including Discontinued Operations [Line Items] Estimated remediation plan cost Loss Contingency, Estimate of Possible Loss Requested rate increase (decrease) Public Utilities, Requested Rate Increase (Decrease), Amount Business Combination [Line Items] Business Combination [Line Items] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Income taxes recoverable Income Taxes Recoverable [Member] Income taxes recoverable. Issuances of Common Stock Proceeds from Issuance of Common Stock IREP rate Base Rate Case, Infrastructure Replacement and Expansion Plan [Member] Base Rate Case, Infrastructure Replacement and Expansion Plan Common Stock, shares authorized (in shares) Common Stock, Shares Authorized Accounts receivable and accrued utility revenues Increase (Decrease) in Accounts and Other Receivables Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Line Items] Exercise Price Award Exercise Price CASH FLOWS FROM INVESTING ACTIVITIES Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Energy Services Accounts Receivable Securitization Facility Energy Services Accounts Receivable Securitization Facility [Member] Energy Services Accounts Receivable Securitization Facility Segment Reporting [Line Items] Segment Reporting [Line Items] Senior Notes Due 2027 Senior Notes Due 2027 [Member] Senior Notes Due 2027 Document Quarterly Report Document Quarterly Report Derivative assets: Derivative Asset [Abstract] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Wholesale Wholesale [Member] Wholesale [Member] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Interest rate swaps Interest Rate Swap [Member] Common stock, without par value Common Stock Including Additional Paid in Capital [Member] Debt Debt Disclosure [Text Block] Other Utility, Other [Member] Utility, Other [Member] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Option to increase Receivables Facility, Accordion Feature, Increase Limit Receivables Facility, Accordion Feature, Increase Limit Derivative liabilities: Derivative Liability [Abstract] Underfunded pension plans Pension Costs [Member] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Business Combination [Table] Business Combination [Table] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Derivative instruments collateral deposits received (paid) Increase (Decrease) in Deposit Assets Foreign currency contracts Forward foreign currency exchange contracts Foreign Exchange Contract [Member] NYDEC RP New York State Department of Environment Conservation Remediation Plan [Member] New York State Department of Environment Conservation Remediation Plan [Member] Adoption Date Trading Arrangement Adoption Date Cash proceeds Disposal Group, Including Discontinued Operation, Consideration Investments in equity method investees Payments to Acquire Equity Method Investments Interest rate Debt Instrument, Interest Rate, Stated Percentage Counterparty Name [Domain] Counterparty Name [Domain] Cash dividends on UGI Common Stock ($0.375, $0.375, $1.13 and $1.13, respectively) Dividends, Common Stock, Cash Total UGI Corporation stockholders’ equity Equity, Attributable to Parent Annual Base Distribution Rate Increase, Effective October 1, 2027 Annual Base Distribution Rate Increase, Effective October 1, 2027 [Member] Annual Base Distribution Rate Increase, Effective October 1, 2027 Sale Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] UGI Energy Services Amended Term Loan Credit Agreement UGI Energy Services Amended Term Loan Credit Agreement [Member] UGI Energy Services Amended Term Loan Credit Agreement ASSETS Assets [Abstract] Regulatory Agency [Axis] Regulatory Agency [Axis] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Environmental Remediation Site [Axis] Environmental Remediation Site [Axis] Insider Trading Policies and Procedures [Line Items] Regulatory Agency [Domain] Regulatory Agency [Domain] IRPAs Interest Rate Protection Agreements [Member] Interest rate protection agreements. Number of remediation plans Loss Contingency, Remediation Plans, Number Of Decisions Loss Contingency, Remediation Plans, Number Of Decisions Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Derivative instruments Derivative Instruments and Hedges, Liabilities Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Derivative Instruments, Gain (Loss) Derivative Instruments, Gain (Loss) [Line Items] Intercompany Loan Intercompany Loan, UGI International [Member] Intercompany Loan, UGI International Operating and administrative expenses Selling, General and Administrative Expense Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Antidilutive securities excluded from computation of earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Short-term borrowings Short-Term Bank Loans and Notes Payable Entity Central Index Key Entity Central Index Key Regulatory Liabilities Regulatory Liability [Line Items] Accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization All Adjustments to Compensation All Adjustments to Compensation [Member] Corporate & Other Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Property, plant and equipment, net Disposal Group, Including Discontinued Operation, Property, Plant, and Equipment, Noncurrent Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Debt Instrument, Borrowing Period [Axis] Debt Instrument, Borrowing Period [Axis] Debt Instrument, Borrowing Period Total held for sale liabilities Disposal Group, Including Discontinued Operation, Liabilities Other Stockholders' Equity, Other Other comprehensive income (loss) before reclassification adjustments Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Income Statement [Abstract] Income Statement [Abstract] UGI Corporation stockholders’ equity: Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Senior Notes Due 2035 Senior Notes Due 2035 [Member] Senior Notes Due 2035 Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Derivatives designated as hedging instruments: Designated as Hedging Instrument [Member] Eliminations Intersegment Eliminations [Member] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Pre-tax gains (losses) associated with net investment hedges Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), Reclassification, before Tax Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate City Area Code City Area Code Variable Rate [Domain] Variable Rate [Domain] Postretirement benefits Postretirement Benefit Costs [Member] Accumulated other comprehensive income (loss) Total AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Name Forgone Recovery, Individual Name Regulatory Liability [Domain] Regulatory Liability [Domain] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Annual Base Distribution Rate Increase, Effective October 1, 2026 Annual Base Distribution Rate Increase, Effective October 1, 2026 [Member] Annual Base Distribution Rate Increase, Effective October 1, 2026 Statement Statement [Line Items] Total assets Total assets Assets Notional amount (in units) Derivative, Nonmonetary Notional Amount, Energy Measure Entity [Domain] Entity [Domain] Accrual for environmental loss contingencies Accrual for Environmental Loss Contingencies Retail Retail [Member] Operating Segments Operating Segments [Member] Interest expense Interest expense Interest Expense, Nonoperating Energy [Domain] Energy [Domain] Nature of Operations Nature of Operations [Text Block] PEO PEO [Member] Base Rates Base Rate Case, Base Rate [Member] Base Rate Case, Base Rate Gross amounts offset in the balance sheet Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Measurement Basis [Axis] Measurement Basis [Axis] Other noncurrent liabilities Other Liabilities, Noncurrent Goodwill Goodwill Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount AmeriGas Partners And AmeriGas Finance Corps AmeriGas Partners And AmeriGas Finance Corps [Member] AmeriGas Partners And AmeriGas Finance Corps Senior Notes Due 2030 Senior Notes Due 2030 [Member] Senior Notes Due 2030 Revenue recognized Contract with Customer, Liability, Revenue Recognized Subsequent Event Type [Domain] Subsequent Event Type [Domain] Retained earnings Retained Earnings [Member] Utilities Utilities UGI Utilities, Inc. [Member] UGI Utilities, Inc. Mountaineer Mountaineer [Member] Mountaineer Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Award Timing Disclosures [Line Items] Foreign Currency Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Schedule of Carrying Amount and Estimated Fair Value of Long-term Debt Fair Value, by Balance Sheet Grouping [Table Text Block] Diluted (in USD per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash provided (used) by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Other current assets Increase (Decrease) in Prepaid Expense and Other Assets Cash Flow Hedges: Cash Flow Hedging [Member] Inventory, Type [Domain] Inventory [Domain] Short-term borrowings (repayments), net Proceeds from (Repayments of) Short-Term Debt, Maturing in Three Months or Less Environmental expenditures cap during calendar year Environmental Expenditures Cap During Calendar Year Environmental expenditures cap during calendar year. Adjustments to reconcile net income attributable to UGI Corporation to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Total revenues from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax CASH FLOWS FROM FINANCING ACTIVITIES Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Property, plant and equipment, net (less accumulated depreciation of $5,253, $5,270 and $5,220, respectively) Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Regulatory Assets Regulatory Asset [Line Items] Held for sale assets Disposal Group, Including Discontinued Operation, Assets, Current Inventories Inventory Disclosure [Text Block] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Estimated fair value Estimate of Fair Value Measurement [Member] Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Repayments of long-term debt and finance leases, including redemption premiums Repayments of Debt and Lease Obligation Total derivative liabilities — net Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Other current liabilities Increase (Decrease) in Other Current Liabilities Other, net Payment for (Proceeds from) Other Investing Activity Inventories Increase (Decrease) in Inventories Natural gas futures, forward, basis swap, options and pipeline contracts Natural Gas Futures, Forward And Pipeline Contracts [Member] Natural Gas Futures, Forward and Pipeline Contracts Total Non-Utility Non-utility [Member] Non-utility [Member] Segment Reporting [Table] Segment Reporting [Table] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Reclassifications of net losses (gains) on derivative instruments tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Operating income (loss) Operating Income (Loss) Expected revenue Revenue, Remaining Performance Obligation, Amount Current Fiscal Year End Date Current Fiscal Year End Date Net loss (gain) on disposals of businesses Net loss (gain) on disposals of businesses Net gain (loss) on disposals of businesses Gain (Loss) on Disposition of Business Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Derivative [Line Items] Derivative [Line Items] Energy Services Energy Services [Member] Energy Services Pennsylvania Public Utility Commission For Annual Base Distribution Revenues Increase To Annual Base Distribution Revenues [Member] Increase To Annual Base Distribution Revenues Regulatory liabilities Disposal Group, Including Discontinued Operation, Regulatory Liabilities Disposal Group, Including Discontinued Operation, Regulatory Liabilities Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Common Stock issued in connection with employee and director plans, net of tax withheld Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Gain (Loss) Reclassified from AOCI into Income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Restructuring costs Restructuring Costs Common Stock, shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] AmeriGas Propane AmeriGas Propane AmeriGas Propane [Member] AmeriGas Propane Off-system sales and capacity releases Off System Sales and Capacity Releases [Member] Off System Sales and Capacity Releases [Member] Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Settlements of net investment hedges Payments for (Proceeds from) Hedge, Investing Activities Cost of sales (excluding depreciation and amortization shown below) Cost of sales Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Principal balance Debt Instrument, Repaid, Principal Equity Components [Axis] Equity Components [Axis] Product and Service [Domain] Product and Service [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Electric Utility Electric Utility [Member] Electric Utility Entity Interactive Data Current Entity Interactive Data Current Variable Rate [Axis] Variable Rate [Axis] Deferred income taxes Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Gain (Loss) Recognized in Income Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Proceeds from contributions from parent Proceeds from Contributions from Parent Repayments of short-term debt Repayments of Short-Term Debt, Maturing in Three Months or Less Entity Small Business Entity Small Business Comprehensive income (loss) attributable to UGI Corporation Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Accounts payable Increase (Decrease) in Accounts Payable, Trade Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Dispositions Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Benefit plans (net of tax of $0, $0, $0 and $0, respectively) Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Total derivative assets — net Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Other current liabilities Other Liabilities, Current Other assets Other Assets, Noncurrent Document Type Document Type Repayments of secured debt Debt Instrument, Repurchased Face Amount Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Foreign currency adjustments tax Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Inventory Public Utilities, Inventory [Line Items] Loss on extinguishments of debt Loss on extinguishments of debt Loss on extinguishments of debt Gain (Loss) on Extinguishment of Debt Fair Value as of Grant Date Award Grant Date Fair Value Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Midstream & Marketing Midstream & Marketing Midstream and Marketing [Member] Midstream and marketing. LPG swaps Propane [Member] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Issuances of debt, net of discount and issuance costs Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number Energy certificates Energy Certificates [Member] Energy Certificates Deferred income tax liabilities Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Net Investment Hedges: Net Investment Hedging [Member] 2024 IREP Expected 2024 Infrastructure Replacement And Expansion Plan Expected [Member] 2024 Infrastructure Replacement And Expansion Plan Expected Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies (Note 9) Commitments and Contingencies Revenues Total revenues Intersegment revenues Revenues Number of transmission and distribution lines miles Disposal Group, Including Discontinued Operation, Transmission and Distribution Line Miles Disposal Group, Including Discontinued Operation, Transmission and Distribution Line Miles Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Senior Notes Due September 2026 Senior Notes Due September 2026 [Member] Senior Notes Due September 2026 Income (loss) from equity investees Loss (income) from equity investees Income (loss) from equity investees Income (Loss) from Equity Method Investments Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Environmental Remediation Contingency [Axis] Environmental Remediation Contingency [Axis] Executive Category: Executive Category [Axis] Counterparty Name [Axis] Counterparty Name [Axis] LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Inventories Total inventories Inventory, Net All Award Types Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Measurements Fair Value Disclosures [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Reclassifications of net losses (gains) on derivative instruments (net of tax of $0, $1, $1 and $1, respectively) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Earnings (loss) before interest expense and income taxes Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net Maximum amount of loss Credit Derivative, Maximum Exposure, Undiscounted PEO Name PEO Name Contract liabilities Contract with Customer, Liability Derivative Instruments Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Other segment income (loss) Segment Reporting, Other Segment Item, Amount Non-utility LPG and natural gas Non utility LPG and natural gas [Member] Non-utility LPG and natural gas. LPG Distribution Business, Flaga LPG Distribution Business, Flaga [Member] LPG Distribution Business, Flaga Gas Utility natural gas Gas Utility Natural Gas [Member] Gas Utility natural gas. Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Legal Entity [Axis] Legal Entity [Axis] Legal Entity [Axis] Interest expense Interest Expense, Debt Net gains (losses) on derivative instruments (net of tax of $(3), $0, $(6) and $(3), respectively) Other comprehensive income (loss) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Regulation Status [Axis] Regulation Status [Axis] 2025 IREP Recovery 2025 Infrastructure Replacement and Expansion Plan, Capital Improvements 2026 Through 2030 [Member] 2025 Infrastructure Replacement and Expansion Plan, Capital Improvements 2026 Through 2030 Cylinder Business Cylinder Business [Member] Cylinder Business Repurchases of Common Stock Treasury Stock, Value, Acquired, Cost Method Cash, cash equivalents and restricted cash at end of period Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Cash collateral pledged Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset 2026 IREP Expected 2026 Infrastructure Replacement And Expansion Plan Expected [Member] 2026 Infrastructure Replacement And Expansion Plan Expected Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Base Rate Base Rate [Member] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Debt Instrument [Axis] Debt Instrument [Axis] Regulated and Unregulated Operation [Domain] Regulated and Unregulated Operation [Domain] Public Utilities, Regulatory Proceeding [Axis] Public Utilities, Regulatory Proceeding [Axis] Disposal Group Name [Axis] Disposal Group Name [Axis] Schedule of Components of Inventories Schedule of Inventory, Current [Table Text Block] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Schedule of Derivative Assets, Liabilities and Effects of Offsetting Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Basic (in USD per share) Earnings Per Share, Basic Repurchases of Common Stock Payments for Repurchase of Common Stock Natural Gas Natural Gas [Member] Natural Gas. Schedule of Regulatory Liabilities [Table] Regulated Operation, Regulatory Liability [Table] Total current assets Assets, Current Insider Trading Arrangements [Line Items] Schedule of Effects of Derivative Instruments on Condensed Consolidated Statements of Income and Changes in AOCI Derivative Instruments, Gain (Loss) [Table Text Block] Award Type Award Type [Axis] Gain (Loss) Recognized in AOCI Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Interest rate contracts Interest Rate Contract [Member] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] UGI International UGI International, LLC [Member] UGI International, LLC Accounts receivable (less allowances for doubtful accounts of $54, $42 and $73, respectively) Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings Retained Earnings (Accumulated Deficit) Commodity contracts Commodity Contract [Member] Product and Service [Axis] Product and Service [Axis] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Deferred fuel and power refunds Deferred Fuel and Power Refunds [Member] Deferred fuel and power refunds. LPG LPG Distribution Businesses, Czech Republic, Hungary, Poland And Slovakia [Member] LPG Distribution Businesses, Czech Republic, Hungary, Poland And Slovakia Fair Value Measurement [Domain] Fair Value Measurement [Domain] Deferred fuel and power costs Deferred Fuel Costs [Member] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Saranac Lake, New York Saranac Lake, New York [Member] Saranac Lake, New York [Member] Derivative Contract [Domain] Derivative Contract [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] West Reading, Pennsylvania Explosion Damage from Fire, Explosion or Other Hazard [Member] Hedging Relationship [Domain] Hedging Relationship [Domain] Pre-tax impairment charges Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax Total liabilities and equity Liabilities and Equity Regulatory Asset [Domain] Regulatory Asset [Domain] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Electricity forward and futures contracts Electricity [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Noncontrolling interests Equity, Attributable to Noncontrolling Interest Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Interest income from intersegment loan Interest Income, Debt Securities, Operating Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Tabular List, Table Tabular List [Table Text Block] Excess federal deferred income taxes Excess Federal Deferred Income Taxes [Member] Excess Federal Deferred Income Taxes [Member] Other non-operating income (expense), net Other Nonoperating Income (Expense) 2026 IREP For 2027 2026 Infrastructure Replacement and Expansion Plan, Capital Investments 2027 [Member] 2026 Infrastructure Replacement and Expansion Plan, Capital Investments 2027 Total UGI stockholders’ equity Parent [Member] UGI Corporation Senior Notes Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Other operating expense (income), net Other Operating Income (Expense), Net Income taxes receivable Income Taxes Receivable, Current Name Awards Close in Time to MNPI Disclosures, Individual Name Equity: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] LPG Business, Romania LPG Business, Romania [Member] LPG Business, Romania Segment expense General and Administrative Expense AmeriGas OLP AmeriGas OLP [Member] AmeriGas OLP [Member] Debt Instrument, Borrowing Period [Domain] Debt Instrument, Borrowing Period [Domain] Debt Instrument, Borrowing Period [Domain] Derivatives, Fair Value Derivatives, Fair Value [Line Items] Total regulatory liabilities Regulatory Liability Large delivery service Large Delivery Service [Member] Large Delivery Service [Member] Adjustment to Compensation: Adjustment to Compensation [Axis] Amounts reclassified from AOCI Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Hedging Designation [Domain] Hedging Designation [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Forward foreign currency exchange contracts Foreign Exchange Forward [Member] Derivative instruments Derivative Instruments and Hedges, Assets Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Long-term debt Long-Term Debt and Lease Obligation Discontinued Operations and Disposal Groups [Abstract] Name Measure Name Non-utility Operations Unregulated Operation [Member] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Other, net Other Noncash Income (Expense) Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Entity Filer Category Entity Filer Category Derivative notional amount percent of required need coverage Derivative Notional Amount Percent Of Required Need Coverage Derivative Notional Amount Percent Of Required Need Coverage Other Other Regulatory Assets (Liabilities) [Member] Other revenues Revenue Not from Contract with Customer Name Trading Arrangement, Individual Name Schedule of Regulatory Assets Schedule of Regulatory Assets [Table Text Block] Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Effective interest rate (as a percentage) Debt Instrument, Interest Rate During Period Accrued utility revenues Accrued Utility Revenues Estimated amount due from natural gas and electric utility customers for distribution service and commodities rendered but not yet billed at the end of the period. Energy [Axis] Energy [Axis] Company Selected Measure Amount Company Selected Measure Amount Derivatives not designated as hedging instruments: Derivatives not designated as hedging instruments: Not Designated as Hedging Instrument [Member] Depreciation and amortization Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization 2024 IREP Recovery 2024 Infrastructure Replacement and Expansion Plan, Capital Improvements 2025 Through 2029 [Member] 2024 Infrastructure Replacement and Expansion Plan, Capital Improvements 2025 Through 2029 SOFR Secured Overnight Financing Rate (SOFR) [Member] Peaking Peaking [Member] Peaking [Member] Current assets: Assets, Current [Abstract] Non-PEO NEO Non-PEO NEO [Member] Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax benefit (expense) Income tax benefit (expense) Income Tax Expense (Benefit) NYDEC ROD New York State Department of Environment Conservation Record of Decision [Member] New York State Department of Environment Conservation Record of Decision Intersegment revenues Corporate & Other Corporate Reconciling Items And Eliminations [Member] Corporate Reconciling Items And Eliminations [Member] Award Timing Method Award Timing Method [Text Block] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Cash, cash equivalents and restricted cash increase (decrease) Cash, cash equivalents and restricted cash increase (decrease) Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Held for sale assets: Disposal Group, Including Discontinued Operation, Assets, Noncurrent [Abstract] Utility deferred fuel costs, net of changes in unsettled derivatives Increase (Decrease) in Deferred Fuel Costs Accounting Changes Accounting Standards Update and Change in Accounting Principle [Text Block] Net income (loss) attributable to UGI Corporation Net income (loss) attributable to UGI Corporation Net income attributable to UGI Corporation Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Pipeline Pipeline [Member] Pipeline [Member] Environmental Remediation Site [Domain] Environmental Remediation Site [Domain] Restatement Determination Date: Restatement Determination Date [Axis] 2024 IREP Expected, Prior Year Under-recovery 2024 Infrastructure Replacement and Expansion Plan, Prior Year Under-recovery [Member] 2024 Infrastructure Replacement and Expansion Plan, Prior Year Under-recovery Schedule of Changes in AOCI, Net of Tax Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Period October 18, 2024 to April 30, 2025 Period October 18, 2024 to April 30, 2025 [Member] Period October 18, 2024 to April 30, 2025 Period May 1, 2025 to October 17, 2025 Period May 1, 2025 to October 17, 2025 [Member] Period May 1, 2025 to October 17, 2025 Senior Notes Due June 2026 Senior Notes Due June 2026 [Member] Senior Notes Due June 2026 AmeriGas Partners AmeriGas Partners [Member] AmeriGas Partners Assets: Total derivative assets — gross Derivative Asset, Subject to Master Netting Arrangement, before Offset Foreign currency contracts Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax Other current and noncurrent liabilities Disposal Group, Including Discontinued Operation, Other Liabilities Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]