Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Trading Arrangement:
Trading Arrangement [Axis]
Impact of CME Rule 814
Impact On Price Risk Derivative Assets Of CME 814 Rule Change
Impact on price risk derivative assets of CME Rule 814 change.
Unbilled revenue (current amount)
Contract with Customer, Asset, before Allowance for Credit Loss, Current
Common units issued in connection with the vesting of phantom unit awards, net (in units)
Partners Capital Account Units Phantom Unit Awards Converted To Common Units
Total common units issued in connection with the vesting of phantom unit awards.
Maximum
Maximum [Member]
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Change in fair market value of derivative instruments
Unrealized Gain (Loss) on Derivatives and Commodity Contracts
Title of 12(b) Security
Title of 12(b) Security
Carrying Value
Reported Value Measurement [Member]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments, Gain (Loss) [Table]
Mark-to-market
Mark-to-market [Member]
Derivative relationship that do not qualify for hedge accounting treatment; therefore, they are accounted for using mark-to-market accounting.
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
Senior Notes XX, 4.80% fixed-rate, due February 2049
EPO Senior Notes XX [Member]
Senior debt obligation: Senior Notes XX.
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Schedule of Forecasted Amortization Expense Associated with Existing Intangible Assets
Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block]
Senior Notes GGG, 5.35% fixed-rate, due January 2033
EPO Senior Notes GGG [Member]
Senior debt obligation: Senior Notes GGG
Sales of natural gas
Sales Of Natural Gas [Member]
Natural gas marketing activities generate revenue from the sale and delivery of natural gas purchased from producers, regional natural gas processing plants and the open market.
Deferred portion of income tax provision:
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Maturities of Long-Term Debt [Abstract]
Maturities of Long-Term Debt [Abstract]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Junior Subordinated Notes
Junior Subordinated Debt [Member]
Total current portion
Current Income Tax Expense (Benefit)
Proceeds from asset sales and other matters
Proceeds from asset sales and other matters
Proceeds from Sale of Productive Assets
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Schedule of Total Segment Gross Operating Margin to Income Before Income Taxes
Total Segment Gross Operating Margin [Table Text Block]
Tabular disclosure of the calculation of total segment gross operating margin. Total segment gross operating margin is defined as operating income before: (i) depreciation, amortization and accretion expense; (ii) non-cash consolidated asset impairment charges; (iii) operating lease expenses for which we do not have the payment obligation; (iv) gains and losses from asset sales and related transactions and (v) general and administrative costs.
Percent
Effective Income Tax Rate Reconciliation, Percent [Abstract]
March 2026 $1.5 Billion 364-Day Revolving Credit Agreement, variable-rate, due March 2027
EPO 364 Day Credit Agreement [Member]
EPO 364 Day Credit Agreement.
Other
Deferred Tax Liabilities, Other
Expected remaining amortization period
Remaining Amortization Period
Remaining amortization period.
Senior Debt Obligations
Senior Debt Obligations [Member]
Senior Notes KKK, 5.55% fixed-rate, due February 2055
EPO Senior Notes KKK [Member]
EPO Senior Notes KKK.
Related Party Transactions
Related Party Transactions Disclosure [Text Block]
Schedule of Cash, Cash Equivalents and Restricted Cash
Schedule of Cash and Cash Equivalents [Table Text Block]
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Member]
Intangible assets, net (see Note 6)
Carrying Value
Intangible Asset, Excluding Goodwill, after Accumulated Amortization
Temporary differences related to Texas Margin Tax
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals
Beginning balance (in units)
Ending balance (in units)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Schedule of Phantom Unit Award Activity
Share-Based Payment Arrangement, Activity [Table Text Block]
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Total asset retirement obligation liability
Balance at beginning of period
Balance at end of period
Asset Retirement Obligation
Net gains (losses) attributable to asset sales and related matters in operating costs and expenses
Gains Attributable To Asset Sales And Insurance Recoveries Excluded From Gross Operating Margin
The difference between the sale price or salvage price and the book value of a property, plant, and equipment asset that was sold or retired during the reporting period. This element refers to the gain (loss) recorded in operating costs and expenses excluded from gross operating margin.
Commodity derivatives:
Commodity Derivatives Liabilities [Abstract]
Commodity Derivatives Liabilities
Number of reportable segments
Number of Reportable Segments
Total current liabilities
Liabilities, Current
Impact of CME Rule 814
Impact On Price Risk Derivative Liabilities Of CME 814 Rule Change
Impact on price risk derivative liabilities of CME Rule 814 change.
Customer relationship intangibles
Customer Relationships [Member]
Forecasted sales of crude oil (MMBbls)
Crude Oil Marketing: Forecasted Sales Of Crude Oil [Member]
The derivative instruments entered into in connection with the forecasted sales of crude oil in connection with crude oil marketing activities.
Schedule of Hedging Instruments Under the FASB's Derivative and Hedging Guidance
Schedule of Derivative Instruments [Table Text Block]
Derivative liabilities (see Note 13)
Derivative Liability, Current
Consolidated Lease Expense [Abstract]
Lease, Cost [Abstract]
Entity Address, City or Town
Entity Address, City or Town
Granted (in units)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Equity-Based Compensation Arrangement by Equity-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Other
Accumulated Net Gain (Loss) from Other Items Attributable to Parent [Member]
Accumulated other comprehensive income (loss) resulting from gain (loss) from other items attributable to the parent.
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Forecasted sales of NGLs (MMBbls)
Natural Gas Processing: Forecasted Sales Of NGLs [Member]
The derivative instruments entered into in connection with the forecasted NGL sales of natural gas processing plants.
Additional Spread Adjustment on Federal Funds Effective Rate
Additional Spread Adjustment on Federal Funds Effective Rate [Member]
Additional Spread Adjustment on Federal Funds Effective Rate
Senior Notes Z, 6.45% fixed-rate, due September 2040
EPO Senior Notes Z [Member]
Senior debt obligation: Senior Notes Z.
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Distributions received from unconsolidated affiliates attributable to the return of capital
Proceeds from Equity Method Investment, Distribution, Return of Capital
EPO Junior Subordinated Notes E
EPO Junior Subordinated Notes E [Member]
EPO Junior Subordinated Notes E.
Significant Other Observable Inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Other income (expense):
Nonoperating Income (Expense) [Abstract]
Total Shareholder Return Vs Peer Group
Total Shareholder Return Vs Peer Group [Text Block]
Total other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Schedule of Operating and Finance Leases
Lessee, Lease Information [Table Text Block]
Tabular disclosure of information on lessee's leases, including carrying value of right-of-use assets and lease liabilities, weighted-average remaining term and weighted-average discount rate.
Total cash flow hedges
Cash flow hedges
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax
Schedule of Long-Term Debt Instruments [Table]
Schedule of Long-Term Debt Instruments [Table]
Senior Notes QQ, 4.90% fixed-rate, due May 2046
EPO Senior Notes QQ [Member]
EPO Senior Notes QQ.
Additional Spread Adjustment
Additional Spread Adjustment [Member]
Additional Spread Adjustment
Schedule of Segment Financial Information
Segment Reporting [Table Text Block]
Net income attributable to preferred units
Convertible Preferred Dividends, Net of Tax
Related Party Transactions, by Related Party [Axis]
Related and Nonrelated Parties [Axis]
Document Period End Date
Document Period End Date
Operating leases
Operating Leases [Abstract]
Operating Leases
Debt instrument, term
Debt Instrument, Term
Range of Interest Rates Paid
Debt Instrument, Interest Rate, Effective Percentage
Net income attributable to limited partners
Net Income (Loss) Attributable to Parent, Diluted
Cash contributions from noncontrolling interests
Proceeds from Noncontrolling Interests
Schedule of Cost of Sales and Lower of Cost or Market Adjustments
Cost Of Sales And Lower Of Cost Or Market Adjustment Summary [Table Text Block]
Tabular disclosure of the summary of costs related to goods produced and sold and services rendered during the period. Discloses any lower of cost or market adjustment recorded during the period.
Net operating loss carryovers
Deferred Tax Assets, Operating Loss Carryforwards
Position [Axis]
Position [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Supplemental Cash Flow Information
Cash Flow, Supplemental Disclosures [Text Block]
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Weighted- Average Remaining Term
Finance Lease, Weighted Average Remaining Lease Term
Federal
Income Tax Paid, Federal, after Refund Received
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax
Entity Shell Company
Entity Shell Company
Enterprise common units pledged as security (in units)
Common Units Pledged As Security
The number of Enterprise common units pledged as security under a credit facility as of the balance sheet date.
Consolidation Items [Domain]
Consolidation Items [Domain]
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Operating lease liability, current
Operating Lease, Liability, Current
Earnings Per Unit
Earnings Per Share [Text Block]
Earnings per unit: (see Note 11)
Earnings Per Share [Abstract]
Offsetting Liabilities [Line Items]
Offsetting Liabilities [Line Items]
Document Fiscal Period Focus
Document Fiscal Period Focus
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Trading Symbol
Trading Symbol
Thereafter
Long-Term Debt, Maturity, after Year Four
Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
Company Selected Measure Name
Company Selected Measure Name
Sale of Stock [Domain]
Sale of Stock [Domain]
Cash distributions paid to noncontrolling interests
Payments of Ordinary Dividends, Noncontrolling Interest
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Offsetting Liabilities [Table]
Offsetting Liabilities [Table]
NGLs
Energy Related Inventory, Natural Gas Liquids
Schedule of Gain/(Loss) Recognized in Income on Derivative
Derivatives Not Designated as Hedging Instruments [Table Text Block]
Operating activities:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
Estimated Useful Life in Years
Property, Plant, and Equipment, Useful Life
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Derivative, nonmonetary notional amount, volume
Derivative, Nonmonetary Notional Amount, Volume
Subsequent recognition of revenues attributable to make-up rights
Make-up Rights Revenue
Revenue related to make-up rights recognized during period. Amounts were previously deferred and included in gross operating margin.
Schedule of Cash Proceeds from Asset Sales and Other Matters
Disposal Groups, Including Discontinued Operations [Table Text Block]
Other, net
Partners' Capital, Other
Schedule of Equity-Based Compensation Arrangements by Equity-Based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Administrative Services Agreement
Administrative Services Agreement [Member]
Represents related party transactions under the administrative services agreement.
Accounts receivable – related parties
Increase (Decrease) in Accounts Receivable, Related Parties
Distillation-based and reaction-based plants
Natural Gas Processing Plant [Member]
Distribution-bearing common units (in units)
Weighted Average Limited Partnership Units Outstanding, Diluted
Cash, Cash Equivalents and Restricted Cash
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Cash distributions paid to common unitholders (see Note 8)
Distribution Made to Limited Partner, Cash Distributions Paid
Sale of Bahia NGL Pipeline ownership interest
Bahia NGL Pipeline
Bahia NGL Pipeline [Member]
Bahia NGL Pipeline
Temporary Equity, Other Disclosure [Abstract]
Temporary Equity, Other Disclosure [Abstract]
Cash payments for operating lease liabilities
Operating Lease, Payments
Deferred tax assets:
Components of Deferred Tax Assets [Abstract]
Award Timing Predetermined
Award Timing Predetermined [Flag]
Other comprehensive income (loss):
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)
Fair Value, Inputs, Level 1 [Member]
EPO Junior Subordinated Notes D
EPO Junior Subordinated Notes D [Member]
EPO Junior Subordinated Notes D.
Provision for income taxes
Effective income tax rate
Effective Income Tax Rate Reconciliation, Percent
Liabilities incurred
Asset Retirement Obligation, Liabilities Incurred
Gain (Loss) Recognized in Income on Hedged Item
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge
Repurchase and cancellation of common units under 2019 Buyback Program
Cost of common units repurchased under 2019 buyback program
Stock Repurchased and Retired During Period, Value
Deferred tax liabilities:
Deferred Tax Liabilities, Gross [Abstract]
Less accumulated depreciation
Accumulated Depreciation, Property, Plant, And Equipment
Amount of accumulated depreciation for physical assets used in the normal conduct of business to produce goods and services.
Depreciation expense
Depreciation
Phantom units (in units)
Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights
Plan Name [Domain]
Plan Name [Domain]
Scenario [Domain]
Scenario [Domain]
Total commodity derivatives
Price Risk Derivative Liabilities, at Fair Value
Senior Notes SS, 3.95% fixed-rate, due February 2027
EPO Senior Notes SS [Member]
EPO Senior Notes SS.
ROU asset carrying value
Operating Lease, Right-of-Use Asset
Subordinated Debt Obligations
Subordinated Debt Obligations [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Offsetting Assets [Table]
Offsetting Assets [Table]
Accumulated other comprehensive gain related to interest rate derivative instruments expected to be reclassified to earnings in interest expense over the next twelve months
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net
Fair Value Disclosures [Abstract]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Net accumulated other comprehensive loss related to commodity derivative instruments expected to be reclassified to earnings over the next twelve months
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months
Schedule of Consolidated Revenues and Costs and Expenses
Consolidated Revenues And Expenses [Table Text Block]
Tabular disclosure of the components of consolidated revenue by segment and type. This element may also provide a detailed disclosure of consolidated costs and expenses.
Expiration Date
Trading Arrangement Expiration Date
2030
Long-Term Debt, Maturity, Year Four
Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis]
Hedging Relationship [Axis]
State
Current State and Local Tax Expense (Benefit)
Accumulated other comprehensive loss related to commodity derivative instruments expected to be reclassified to revenue over the next twelve months
Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next 12 Months, Revenue
The estimated net amount of unrealized gains or losses on price risk cash flow hedges as of the balance sheet date expected to be reclassified to earnings (revenue) within the next twelve months.
Buildings
Building [Member]
Nonrelated Party
Nonrelated Party [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Disposal Group, Including Discontinued Operations [Line Items]
EPCO and its privately held affiliates
Affiliated Entity [Member]
Aggregate Pension Adjustments Service Cost
Aggregate Pension Adjustments Service Cost [Member]
Derivative [Table]
Derivative [Table]
Investing activities:
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Related Party Transaction [Axis]
Related Party Transaction [Axis]
Sales of crude oil
Sales Of Crude Oil [Member]
Crude oil marketing activities generate revenues from the sale and delivery of crude oil purchased either directly from producers or from others on the open market.
Unrecognized compensation cost
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Disposal Groups [Table]
Disposal Groups, Including Discontinued Operations [Table]
Segment [Domain]
Segments [Domain]
Debt Obligations
Debt Disclosure [Text Block]
Scenario [Axis]
Scenario [Axis]
Other amortization expense
Other Amortization Expense
Other amortization expense not separately broken out. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.
Total fixed finance lease expense
Finance Lease Cost
Total fixed finance lease expense, which include amortization of finance lease ROU assets and interest on finance lease liabilities.
Senior Notes NN, 4.95% fixed-rate, due October 2054
EPO Senior Notes NN [Member]
EPO Senior Notes NN.
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Water wells
Water Wells [Member]
Water wells drilled for access to groundwater.
Total costs and expenses
Costs and expenses
Costs and Expenses
Weighted average discount rate
Finance Lease, Weighted Average Discount Rate, Percent
Debt instrument, interest rate, stated percentage
Debt Instrument, Interest Rate, Stated Percentage
Tenor Spread Adjustment
Tenor Spread Adjustment [Member]
Tenor Spread Adjustment
Offsetting Assets [Line Items]
Offsetting Assets [Line Items]
ASSETS
Assets [Abstract]
Contract-based intangibles
Contractual Rights [Member]
Senior Notes LLL, 4.30% fixed-rate, due June 2028
EPO Senior Notes LLL [Member]
EPO Senior Notes LLL
Insider Trading Policies and Procedures [Line Items]
Crude oil risk management activities (MMBbls)
Crude Oil Risk Management Activities [Member]
The derivative instruments entered into in connection with crude oil risk management activities.
Accounts receivable, allowance for credit losses
Accounts Receivable, Allowance for Credit Loss, Current
Noncontrolling interests in consolidated subsidiaries
Partners' Capital Attributable to Noncontrolling Interest
Prepaid and other current assets
Prepaid Expense and Other Assets, Current
Deferred income tax expense
Total deferred portion
Deferred Income Tax Expense (Benefit)
Crude Oil Pipelines & Services
Onshore Crude Oil Pipelines And Services [Member]
Onshore Crude Oil Pipelines and Services business segment.
Senior Notes EE, 4.85% fixed-rate, due August 2042
EPO Senior Notes EE [Member]
Senior debt obligation: Senior Notes EE.
Entity Central Index Key
Entity Central Index Key
Accumulated other comprehensive loss related to commodity derivative instruments expected to be reclassified to operating costs and expenses over the next twelve months
Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next 12 Months, Operating Costs and Expenses
The estimated net amount of unrealized gains or losses on price risk cash flow hedges as of the balance sheet date expected to be reclassified to earnings (operating costs and expenses) within the next twelve months.
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]
Income tax provision at the U.S. federal income tax rate
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Significant segment expenses:
Segment expenses [Abstract]
Segment expenses [Abstract]
Total maximum borrowing capacity
Line Of Credit Facility, Total Maximum Borrowing Capacity
Total 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 plus maximum bank increase.
Remainder of 2026
Long-Term Debt, Maturity, Remainder of Fiscal Year
Natural Gas Pipelines & Services
Onshore Natural Gas Pipelines And Services [Member]
Onshore Natural Gas Pipelines and Services business segment.
Other comprehensive income (loss) for period, before reclassifications
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Fair Value, Hierarchy [Axis]
Fair Value Hierarchy and NAV [Axis]
Derivatives designated as hedging instruments:
Designated as Hedging Instrument [Member]
Diluted earnings per common unit (in dollars per unit)
Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted
Finance lease, liability, noncurrent
Finance Lease, Liability, Noncurrent
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Schedule of Income Tax Benefit (Provision)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Amount
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Accrued product payables
Accrued Product Payables
Carrying value as of the balance sheet date of obligations incurred and payable to third parties for natural gas, NGLs and petrochemicals that has been sold but not delivered. For classified balance sheets, used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer); for unclassified balance sheets, used to reflect the total liabilities (regardless of due date).
Debt instrument, basis spread on variable rate
Debt Instrument, Basis Spread on Variable Rate
Variable Rate [Domain]
Variable Rate [Domain]
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent [Member]
All Individuals
All Individuals [Member]
Carrying amount of hedged asset
Hedged Asset, Fair Value Hedge
Equity-based payment arrangement, cost not yet recognized, period for recognition
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Price risk derivatives, at fair value, net
Price Risk Derivatives, at Fair Value, Net
Amounts recorded during period transferred to other accounts
Contract With Customer, Liability, Revenue Recognized From Additions Made During The Period
Amount of revenue recognized from additions made during the current reporting period to the balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.
Statement [Line Items]
Statement [Line Items]
Total assets
Total assets
Assets
Volume
Derivative, Nonmonetary Notional Amount, Energy Measure
Schedule of Components of Deferred Tax Assets and Liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
BASIC EARNINGS PER COMMON UNIT
Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax [Abstract]
Operating Segments
Operating Segments [Member]
Capitalized major maintenance costs for reaction-based plants, net of accumulated amortization
Capitalized Major Maintenance Costs, Net Of Accumulated Amortization
Capitalized major maintenance costs, net of accumulated amortization. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.
Partner Capital Components [Axis]
Partner Capital Components [Axis]
Interest expense
Interest expense
Interest Expense, Nonoperating
Schedule of Equity-Based Award Compensation Expense
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
Total partners’ equity
Partners' Capital
Equity-Based Awards
Share-Based Payment Arrangement [Text Block]
PEO
PEO [Member]
2028
Long-Term Debt, Maturity, Year Two
Finance leases
Finance Lease, Right-of-Use Asset, after Accumulated Amortization [Abstract]
Other long-term liabilities
Other Liabilities, Noncurrent
Goodwill (see Note 6)
Goodwill
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Operating lease, liability, noncurrent
Operating Lease, Liability, Noncurrent
Net income attributable to noncontrolling interests
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest
Distribution Reinvestment and Employee Unit Purchase Plans
Distribution Reinvestment And Employee Unit Purchase Plans [Member]
The distribution reinvestment plan (DRIP) provides unitholders of record and beneficial owners of our common units a voluntary means by which they can increase the number of common units they own by reinvesting the quarterly cash distributions they would otherwise receive into the purchase of additional common units. Under the employee unit purchase plan (EUPP), employees can purchase our common units at a discount through payroll deductions.
Other, non-principal amounts
Long Term Debt Other Non Principal Amounts
Other, non-principal amounts of long term debt as of the balance sheet date.
Award Timing Disclosures [Line Items]
Capitalized interest
Interest Costs Capitalized
Amortization of intangible assets
Intangible Asset, Finite-Lived, Amortization Expense
Intangible Assets [Line Items]
Intangible Asset, Finite-Lived [Line Items]
Senior Notes H, 6.65% fixed-rate, due October 2034
EPO Senior Notes H [Member]
Senior debt obligation: Senior Notes H.
Schedule of Offsetting Financial Assets
Offsetting Assets [Table Text Block]
Preferred units (in units)
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock
Share-Based Payment Arrangement [Abstract]
Share-Based Payment Arrangement [Abstract]
Terminal facilities
Terminal Facilities [Member]
Assets that are used for the delivery, receipt and storage of products for consumers.
Attributable to property, plant and equipment
Deferred Tax Liabilities, Property, Plant and Equipment
Total significant segment expenses
Total significant segment expenses
Total significant segment expenses that includes: cost of sales, variable operating costs and expenses, and fixed operating costs and expenses.
Schedule of Investments and Equity in Income of Unconsolidated Affiliates by Business Segment
Equity Method Investments [Table Text Block]
Equity Awards Adjustments, Footnote
Equity Awards Adjustments, Footnote [Text Block]
Gross Value
Intangible Asset, Excluding Goodwill, before Accumulated Amortization
Accrued interest
Increase (Decrease) in Interest Payable, Net
Schedule of Gain/(Loss) Reclassified from Accumulated Other Comprehensive Income/(Loss) to Income
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Amounts That Would Have Been Presented On Net Basis
Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction
Other current liabilities
Increase (Decrease) in Other Current Liabilities
Construction in progress
Construction in Progress [Member]
Total lease right of use asset
Total Lease Right Of Use Asset
Amount of lessee's right to use underlying asset.
Schedule of Maturities of Debt
Schedule of Maturities of Long-Term Debt [Table Text Block]
Equity Method Investment [Table]
Equity Method Investment [Table]
Sale of Stock [Axis]
Sale of Stock [Axis]
Subtotal property, plant and equipment, net
Subtotal property, plant, and equipment, net
Amount after accumulated depreciation of physical assets, before capitalized major maintenance, net of accumulated amortization used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
Loss recognized in income on derivative
Gain (Loss) Recognized in Income on Derivative
Derivative, Gain (Loss) on Derivative, Net
Senior Notes UU, 4.25% fixed-rate, due February 2048
EPO Senior Notes UU [Member]
Senior debt obligation: Senior Notes UU.
Operating income
Operating Income (Loss)
Fixed Consideration
Revenue, Remaining Performance Obligation, Amount
Other asset sales
Other Asset Sales [Member]
Other asset sales during the period.
Borrowings under debt agreements
Proceeds from Issuance of Debt
Cash flow hedges: (see Note 13)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract]
Related Party Transaction [Domain]
Related Party Transaction [Domain]
Net income attributable to preferred units
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Increase (Decrease) in Partners' Equity [Roll Forward]
Increase (Decrease) in Partners' Capital [Roll Forward]
Increase (Decrease) in Partners' Capital [Roll Forward]
Additional Spread Adjustment on Secured Overnight Financing Rate
Additional Spread Adjustment on Secured Overnight Financing Rate [Member]
Additional Spread Adjustment on Secured Overnight Financing Rate
Accounts receivable – trade
Increase (Decrease) in Accounts Receivable
Product and Service [Domain]
Product and Service [Domain]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Deferred tax liabilities (see Note 15)
Total net deferred tax liabilities
Deferred Income Tax Liabilities, Net
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Common Limited Partner Interests
Limited Partner [Member]
Total commodity derivatives
Price Risk Derivative Assets, at Fair Value
Termination Date
Trading Arrangement Termination Date
Common units outstanding, beginning balance (in units)
Common units outstanding, ending balance (in units)
Partners' Capital Account, Units
Fair Value, Assets and Liabilities Measured on Recurring Basis [Table]
Fair Value, Recurring and Nonrecurring [Table]
Income tax provision at the U.S. federal income tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
Amounts That Would Have Been Presented On Net Basis
Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction
Other current liabilities
Other Liabilities, Current
Crude oil
Energy Related Inventory Crude Oil
Carrying amount as of the balance sheet date of crude oil inventories.
Derivative assets (see Note 13)
Derivative Asset, Current
Fair Value as of Grant Date
Award Grant Date Fair Value
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
Remaining available capacity under the 2019 Buyback Program
Share Repurchase Program, Remaining Authorized, Amount
Underground and other storage facilities
Underground And Other Storage Facilities [Member]
Long-lived depreciable assets used to store product for the consumer.
Operating costs and expenses
Operating Costs and Expenses
Arrangement Duration
Trading Arrangement Duration
Consolidation Items [Axis]
Consolidation Items [Axis]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Entity Registrant Name
Entity Registrant Name
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Revenues
Revenue
Total revenues
Revenues
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Partnership income not subject to federal income tax
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount
Equity in income of unconsolidated affiliates
Equity in income of unconsolidated affiliates
Equity in income of unconsolidated affiliates
Income (Loss) from Equity Method Investments
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Forecasted purchases of power related to asset operations (terawatt hours (“TWh”))
Commercial Energy: Forecasted Purchases Of Power Related To Asset operations [Member]
The derivative instruments entered into in connection with the forecasted purchases of power related to asset operations.
Treasury units, at cost
Treasury Stock, Preferred, Value
Amortization of ROU assets
Finance Lease, Right-of-Use Asset, Amortization
Increase (decrease) in:
Increase (Decrease) in Operating Liabilities [Abstract]
Operating costs and expenses:
Operating Costs and Expenses [Abstract]
Operating Costs and Expenses [Abstract]
Intangible Asset, Finite-Lived, Class [Domain]
Intangible Asset, Finite-Lived, Class [Domain]
Realized loss on commodity contracts
Realized Gain (Loss) on Commodity Contracts
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of settled agreements for the purchase or sale of mineral resources, energy, and agricultural products that was included in earnings for the period.
Cash distributions paid to convertible preferred unitholders
Cash distributions paid to convertible preferred unitholders
Cash distributions paid to convertible preferred unitholders.
Schedule of Fair Value Measurements of Financial Assets and Liabilities Measured on a Recurring Basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
EPO Junior Subordinated Notes F
EPO Junior Subordinated Notes F [Member]
EPO Junior Subordinated Notes F.
Award Type [Domain]
Award Type [Domain]
Interest on finance lease liabilities
Finance Lease, Interest Expense
Significant Unobservable Inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
2027
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One
Total
Balance at December 31, 2025
Balance at March 31, 2026
Contract with Customer, Liability
Senior Notes ZZ, 4.20% fixed-rate, due January 2050
EPO Senior Notes ZZ [Member]
EPO Senior Notes ZZ.
Total other segment income
Other Segment Income (Expense), Net
Equity in income of unconsolidated affiliates and other segment items.
Commodity derivatives:
Commodity Derivatives Assets [Abstract]
Commodity Derivatives Assets
Legal Entity [Axis]
Legal Entity [Axis]
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Cash and cash equivalents, including restricted cash, at beginning of period
Cash and cash equivalents, including restricted cash, at end of period
Total cash, cash equivalents and restricted cash shown in the Unaudited Condensed Statements of Consolidated Cash Flows
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Related accretion expense on lease liability balances
Operating Lease, Lease Liability, Accretion
Portion of total fixed lease expense related to the accretion of the lease liability from long-term operating leases.
Cash Collateral Paid
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset
Intangible Asset, Finite-Lived [Table]
Intangible Asset, Finite-Lived [Table]
Schedule of Information Regarding our Asset Retirement Obligations, or AROs
Schedule of Change in Asset Retirement Obligation [Table Text Block]
Schedule of Reclassification out of Accumulated Other Comprehensive Income (Loss)
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Non-NEOs
Non-NEOs [Member]
2028
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two
Common limited partner interests (2,163,518,271 units issued and outstanding at March 31, 2026, 2,161,760,683 units issued and outstanding at December 31, 2025
Limited Partners' Capital Account
Schedule of Inventory Amounts by Product Type
Schedule of Inventory, Current [Table Text Block]
2027
Long-Term Debt, Maturity, Year One
Long-Term Debt, Type [Domain]
Long-Term Debt, Type [Domain]
Deferred revenue (current amount)
Contract with Customer, Liability, Current
Repurchase of common units under 2019 Buyback Program
Payments for Repurchase of Common Stock
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Schedule of Derivative Instruments Effects on Statements of Operations
Derivative Instruments, Gain (Loss) [Table Text Block]
Change in Value Recognized in Other Comprehensive Income (Loss) on Derivative
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax
Award Type [Axis]
Award Type [Axis]
Interest Rate Derivative Instruments
Interest Rate Contract [Member]
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
Cash payments made in connection with distribution equivalent rights
Partners Capital Distribution Equivalent Rights Paid
Total cash payments made in connection with distribution equivalent rights.
Product and Service [Axis]
Product and Service [Axis]
Partners’ equity:
Partners' Capital [Abstract]
Fixed rate debt principal amount fair value
Fixed Rate Debt Principal Amount Fair Value Disclosure
This element represents the portion of the balance sheet assertion valued at fair value by the entity 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. This item represents the fair value of the principal balance of our fixed rate debt as of the balance sheet date.
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
Common Units
Common Stock [Member]
Laboratory and shop equipment
Laboratory And Shop Equipment [Member]
Laboratory and shop equipment used for operations at facilities.
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Total fixed operating lease expense
Operating Lease, Cost
Underground storage facilities
Underground Storage Facilities [Member]
Underground wells used for the storage of inventories or customer's goods.
Derivative Contract [Domain]
Derivative Contract [Domain]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total liabilities, preferred units, and equity
Liabilities and Equity
Variable lease expense
Variable Lease, Cost
Employee Stock Option
Share-Based Payment Arrangement, Option [Member]
Commodity Derivative Before CME Rule 814
Commodity Derivative Before CME Rule 814 [Member]
Commodity Derivative Before CME Rule 814
Asset retirement obligation, current
Asset Retirement Obligation, Current
Statement, Business Segments [Axis]
Segments [Axis]
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Commercial energy risk management activities (TWh)
Commercial energy risk management activities [Member]
The derivative instruments entered into in connection with commercial energy risk management activities.
Related and Nonrelated Parties [Domain]
Related and Nonrelated Parties [Domain]
Tabular List, Table
Tabular List [Table Text Block]
Accretion expense
Asset Retirement Obligation, Accretion Expense
2029
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three
Remainder of 2026
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Name
Awards Close in Time to MNPI Disclosures, Individual Name
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]
ExxonMobil
ExxonMobil [Member]
ExxonMobil
Long-Lived Asset, Class [Domain]
Long-Lived Asset, Class [Domain]
Derivative Instruments and Hedges, Assets [Abstract]
Derivative Instruments and Hedges, Assets [Abstract]
NGL Pipelines & Services
NGL Pipelines and Services [Member]
NGL Pipelines and Services business segment.
Property, Plant, and Equipment [Table]
Property, Plant, and Equipment [Table]
Adjustment to Compensation:
Adjustment to Compensation [Axis]
Reclassification of losses (gains) to net income during period
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
NGL risk management activities (MMBbls)
NGL Risk Management Activities [Member]
The derivative instruments entered into in connection with NGL risk management activities by the entity.
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Cash payments for interest, net of $24 and $45 capitalized during the three months ended March 31, 2026 and 2025, respectively
Interest Paid, Excluding Capitalized Interest, Operating Activity
Capital expenditures
Payments to Acquire Productive Assets
Senior Notes KK, 5.10% fixed-rate, due February 2045
EPO Senior Notes KK [Member]
Senior debt obligation: Senior Notes KK.
Hedging Designation [Axis]
Hedging Designation [Axis]
Adjustments to reconcile total segment gross operating margin to income before income taxes (addition or subtraction indicated by sign):
Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Abstract]
Total
Assets, Fair Value Disclosure
Name
Measure Name
Texas Margin Tax
Effective Income Tax Rate Reconciliation, State Margin Tax, Amount
The amount of income tax expense (benefit) for the period computed by applying the Texas margin tax. The tax is assessed on Texas sourced taxable margin which is defined as the lesser of (i) 70% of total revenue or (ii) total revenue less (a) cost of goods sold or (b) compensation and benefits.
Pay vs Performance Disclosure [Line Items]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Prepaid and other current assets
Increase (Decrease) in Other Current Assets
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Property, plant and equipment includes asset retirement costs capitalized
Oil and Gas, Capitalized Cost, before Accumulated Depreciation, Depletion, Amortization, and Valuation Allowance, Asset Retirement
Sales of petrochemicals and refined products
Sales Of Petrochemical And Refined Products [Member]
Our petrochemical marketing activities include the purchase and fractionation of refinery grade propylene obtained on the open market and generate revenues from the sale and delivery of polymer grade propylene to customers at market-based prices.
Name
Trading Arrangement, Individual Name
Cash and cash equivalents
Cash and Cash Equivalent
Position [Domain]
Position [Domain]
Operating lease, expense
Operating Lease, Expense
Company Selected Measure Amount
Company Selected Measure Amount
Accrued product payables
Increase (Decrease) In Accrued Product Payable
The net change during the reporting period in product expenses incurred but not yet paid. This element should be used when there is no other more specific or appropriate element.
Weighted-average remaining term
Operating Lease, Weighted Average Remaining Lease Term
Senior Notes PP, 3.70% fixed-rate, due February 2026
EPO Senior Notes PP [Member]
EPO Senior Notes PP.
Non-PEO NEO
Non-PEO NEO [Member]
Cost of sales
Cost of Product and Service Sold
Net income
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest
Award Timing Method
Award Timing Method [Text Block]
Net change in cash and cash equivalents, including restricted cash
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Depreciation and accretion
Depreciation And Accretion
The aggregate net amount of depreciation and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.
Forecasted sales of refined products (MMBbls)
Refined Products Marketing: Forecasted Sales Of Refined Products [Member]
The derivative instruments entered into in connection with the forecasted sales of refined products in connection with refined products marketing activities.
Forecast
Forecast [Member]
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
Total deferred tax assets
Deferred Tax Assets, Gross
Buyback Program:
Share Repurchase Program [Abstract]
Revisions in estimated cash flows
Asset Retirement Obligation, Revision of Estimate
Net income attributable to common unitholders
Net income attributable to common unitholders
Net Income (Loss) Attributable to Parent
Long-Term Debt, Type [Axis]
Long-Term Debt, Type [Axis]
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Location, Statement of Financial Position, Balance [Axis]
Location, Statement of Financial Position, Balance [Axis]
Lease liability, noncurrent, Consolidated Balance Sheet [Extensible Enumeration]
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Restatement Determination Date:
Restatement Determination Date [Axis]
Schedule of Components of Accumulated Other Comprehensive Income (Loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Total
Balance at December 31, 2025
Balance at March 31, 2026
Contract with Customer, Asset, before Allowance for Credit Loss
Revenues:
Revenues [Abstract]
At-the-Market Registration
Registration Atm [Member]
A registration statement with the SEC authorizing the issuance of our common units in amounts, at prices and on terms to be determined by market conditions and other factors at the time of our offerings.
Redeemable preferred limited partner interests: (see Note 8)
Temporary Equity [Abstract]
Pension Benefits Adjustments, Footnote
Pension Benefits Adjustments, Footnote [Text Block]
Diluted weighted-average number of units outstanding:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Document Fiscal Year Focus
Document Fiscal Year Focus
Gross Amounts Offset in the Balance Sheet
Derivative Liability, Subject to Master Netting Arrangement, Asset Offset
Period
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Total equity
Beginning balance
Ending balance
Partners' Capital, Including Portion Attributable to Noncontrolling Interest
Variable operating costs and expenses
Variable Operating Costs and Expenses
Variable operating costs and expenses represent the cost of operating our plants, pipelines and other fixed assets that generally fluctuate based on utilization.
Number of Units
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Forecasted purchases of refined products (MMBbls)
Refined Products Marketing: Forecasted Purchases Of Refined Products [Member]
The derivative instruments entered into in connection with the forecasted purchases of refined products in connection with refined products marketing activities.
Registration Statements and Equity Offerings [Line Items]
Registration Statements and Equity Offerings [Line Items]
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.
Schedule of Consolidated Debt Obligations
Schedule of Long-Term Debt Instruments [Table Text Block]
Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Restatement Determination Date
Restatement Determination Date
Senior Notes III, 4.85% fixed-rate, due January 2034
EPO Senior Notes III [Member]
Senior debt obligation: Senior Notes III
Earnings Per Unit [Abstract]
Earnings Per Unit [Abstract]
Investments in unconsolidated affiliates (see Note 5)
Investments in unconsolidated affiliates
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Lower of cost or net realizable value adjustments recognized in cost of sales
Inventory Write-down
Capitalized Major Maintenance
Capitalized Major Maintenance [Member]
Capitalized Major Maintenance.
Schedule of Reconciliation of Benefit from (Provision for) Income Taxes
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of Derivative Instruments Effects on Statements of Comprehensive Income
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
Natural gas
Energy Related Inventory Natural Gas
Carrying amount as of the balance sheet date of natural gas inventories.
Earnings allocated to phantom unit awards
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic
Amendment Flag
Amendment Flag
Forecasted sales of natural gas (Bcf)
Natural Gas Processing: Forecasted Sales Of Natural Gas [Member]
The derivative instruments entered into in connection with the forecasted sales of natural gas.
Current liabilities:
Liabilities, Current [Abstract]
Cash distributions paid
Cash Distributions Paid
Amount of cash distribution paid to common unit-holder of limited partnership (LP) and distribution equivalent rights.
Cash paid for finance leases
Finance Lease, Principal Payments
Storage and pipeline facilities
Energy Equipment [Member]
Texas Margin Tax
Effective Income Tax Rate Reconciliation, State Margin Tax, Percent
Effective Income Tax Rate Reconciliation, State Margin Tax, Percent
Amounts recorded during period
Contract With Customer, Liability, Additions
Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable recorded during the current reporting period.
Unconsolidated affiliates
Equity Method Investee [Member]
Amounts recorded during period transferred to other accounts
Contract With Customer, Asset, Recorded During The Period And Reclassified to Receivable
Amount of decrease in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time from transfer to receivable due to right to consideration becoming unconditional during the period.
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Liabilities settled
Asset Retirement Obligation, Liabilities Settled
Property, Plant, and Equipment [Abstract]
Property, Plant, and Equipment [Abstract]
Entity Address, State or Province
Entity Address, State or Province
PEO Total Compensation Amount
PEO Total Compensation Amount
Financial assets:
Assets, Fair Value Disclosure [Abstract]
Cash Collateral Paid
Derivative Asset Collateral Right To Reclaim Cash
Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative assets.
Capital expenditures
Segment Reporting, Long-Lived Asset, Expenditure for Addition
Share Repurchase Program [Domain]
Share Repurchase Program [Domain]
Schedule of Related Party Transactions
Schedule of Related Party Transactions [Table Text Block]
Non-refundable payments received from shippers attributable to make-up rights
Non-refundable Deferred Revenues Attributable To Shipper Make-up Rights On New Pipeline Projects Included In Gross Operating Margin
Non-refundable deferred revenues attributable to shipper make-up rights on new pipeline projects included in gross operating margin.
Total long-term lease expense
Long Term Lease Expense
Total lease expense from long-term contracts. Includes fixed and variable.
Maximum common units authorized for issuance
Limited Partners Capital Account Units Authorized Dollars
The dollar amount of limited partner units authorized to be issued in amounts, at prices and on terms to be determined by market conditions and other factors at the time of offerings.
Schedule of Income Taxes Paid
Schedule of Cash Flow, Supplemental Disclosures
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
Class of Stock [Axis]
Class of Stock [Axis]
Vested (in units)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Office and warehouse space
Office Building And Warehouse [Member]
Building designed primarily for the conduct of business, for example, but not limited to, administration, clerical services, and consultation and facility designed for the storage of goods or equipment.
Senior Notes EEE, 3.30% fixed-rate, due February 2053
EPO Senior Notes EEE [Member]
Senior debt obligation: Senior Notes EEE.
Net income allocated to common unitholders
Net Income (Loss) Available to Common Stockholders, Basic
Accumulated Amortization
Intangible Asset, Finite-Lived, Accumulated Amortization
Line of credit facility, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Current maturities of debt (see Note 7)
Less current maturities of debt
Long-Term Debt, Current Maturities
Estimated forfeiture rate
Grant Date Estimated Forfeiture Rate Equity Awards
The estimated grant date forfeiture rate applied to the recognized compensation expense of equity based awards.
Number of common units purchased on the open market and delivered to participants (in units)
Units Purchased on Open Market and Delivered to Participants
Number of common units purchased on the open market and delivered to participants in connection with the DRIP and EUPP.
Senior Notes D, 6.875% fixed-rate, due March 2033
EPO Senior Notes D [Member]
Senior debt obligation: Senior Notes D.
Land
Land [Member]
Noncontrolling Interests in Consolidated Subsidiaries
Noncontrolling Interest [Member]
Property, Plant and Equipment
Property, Plant, and Equipment [Text Block]
Amortization of major maintenance costs for reaction-based plants
Amortization Of Major Maintenance Costs
Amortization of major maintenance costs.
Net cash flow used in 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]
Cash Collateral Received
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset
Capital Accounts
Equity [Text Block]
Costs and expenses:
Consolidated costs and expenses [Abstract]
Costs and Expenses [Abstract]
Series A cumulative convertible preferred units outstanding (in units)
Temporary Equity, Shares Outstanding
Security Exchange Name
Security Exchange Name
Incurred liabilities for construction in progress
Construction in Progress Expenditures Incurred but Not yet Paid
Maximum bank commitments increase
Line Of Credit Facility, Maximum Bank Commitments Increase
The maximum amount by which the total commitments may be increased by the borrower by adding one or more lenders to the facility and/or requesting that the commitments of the existing lenders be increased.
Amortization of fair value of equity-based awards
Partners' Capital Account, Unit-Based Payment Arrangement, Amount
Total
Liabilities, Fair Value Disclosure
Accrued interest
Interest Payable, Current
ROU asset carrying value
Finance Lease, Right-of-Use Asset, after Accumulated Amortization
Schedule of Historical Costs of our Property, Plant and Equipment and Related Balances
Property, Plant, and Equipment [Table Text Block]
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Name
Outstanding Recovery, Individual Name
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
State
Deferred State and Local Income Tax Expense (Benefit)
General and administrative costs:
General and Administrative Expense [Abstract]
Financial Instruments
Asset Derivative Settlement Offset
The amount of the derivative asset to be cleared under master netting arrangements that have not been offset against net derivative instrument positions.
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]
Annualized distribution per common unit (in dollars per unit)
Annualized Distribution Made to Limited Partner, Distributions Declared, Per Unit
Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP) on an annualized basis.
Other changes
Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue, Modification of Contract
Principal outstanding
Total principal outstanding
Obligations under debt agreements
Long-Term Debt, Gross
Related Party Transactions [Abstract]
Related Party Transactions [Abstract]
Marine vessels
Marine Services Equipment [Member]
Compensation Amount
Outstanding Recovery Compensation Amount
Individual:
Individual [Axis]
Total (in units)
Weighted Average Number of Shares Outstanding, Diluted
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Entity Emerging Growth Company
Entity Emerging Growth Company
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Net losses (gains) attributable to asset sales and related matters
Gain (Loss) From Asset Sales and Related Transactions in Operating Costs and Expenses
The difference between the sale price or salvage price and the book value of a property, plant, and equipment asset that was sold or retired during the reporting period. This element refers to the gain (loss) recorded in operating costs and expenses.
Commercial Paper Notes
Commercial Paper [Member]
Forecasted sales of NGLs and related hydrocarbon products (MMBbls)
NGL Marketing Forecasted Sales Of NGLs And Related Hydrocarbon products [Member]
The derivative instruments entered into in connection with the forecasted sales of NGLs and related hydrocarbon purchases in connection with NGL marketing activities.
Gross Amounts of Recognized Liabilities
Derivative Liability, Subject to Master Netting Arrangement, before Offset
Other assets
Increase (Decrease) in Other Noncurrent Assets
Senior Notes DD, 5.70% fixed-rate, due February 2042
EPO Senior Notes DD [Member]
Represents EPO's Senior Notes DD.
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Abstract]
Other (in units)
Partners Capital Account Other Units Changes
Other changes in units during the period.
Federal
Deferred Federal Income Tax Expense (Benefit)
Treasury Units
Treasury Stock, Common [Member]
Intangible Asset, Goodwill and Other [Abstract]
Intangible Asset, Goodwill and Other [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Beginning balance (in dollars per unit)
Ending balance (in dollars per unit)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Partner Capital Components [Domain]
Partner Capital Components [Domain]
All Executive Categories
All Executive Categories [Member]
Pension Adjustments Service Cost
Pension Adjustments Service Cost [Member]
Percentage of Common Units Outstanding
Outstanding Units Percentage Owned By Affiliates Under Common Control
The number of units owned (as a percentage) by an affiliate under common control.
Schedule of Basic and Diluted Earnings Per Unit
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Business Segments and Related Information
Segment Reporting [Text Block]
Unrealized loss on commodity contracts
Unrealized Gain (Loss) on Commodity Contracts
Minimum
Minimum [Member]
Schedule of Revenues by Business Segment
Disaggregation of Revenue [Table Text Block]
Schedule of Amortization Expense of our Intangible Assets by Business Segment
Intangible Asset, Finite-Lived, Amortization Expense [Table Text Block]
Location, Statement of Income, Balance [Axis]
Location, Statement of Income, Balance [Axis]
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Letter of credit outstanding
Letter of Credit Outstanding
The amount outstanding on a letter of credit. These letters of credit reduce the amount available for borrowing under EPO's Multi-Year Revolving Credit Facility.
Common units outstanding (in units)
Limited Partners' Capital Account, Units Outstanding
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]
Schedule of Changes in Outstanding Common Units
Schedule of Common Stock Outstanding Roll Forward [Table Text Block]
Pipelines and related equipment
Pipelines [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Exercise Price
Award Exercise Price
Comprehensive income attributable to preferred units
Noncontrolling Interest In Comprehensive Income (Loss) Preferred Unit Holders, Redeemable
Amount after tax of comprehensive income (loss) attributable to redeemable noncontrolling preferred unit holders.
Fair Value, Recurring
Fair Value, Recurring [Member]
Schedule of Equity Method Investments [Line Items]
Schedule of Equity Method Investments [Line Items]
Segment Reporting [Line Items]
Segment Reporting [Line Items]
Amount included in opening balance transferred to other accounts during period
Contract with Customer, Asset, Reclassified to Receivable
Amount authorized under 2019 Buyback Program
Share Repurchase Program, Authorized, Amount
Document Quarterly Report
Document Quarterly Report
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]
Equity-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Natural gas risk management activities (Bcf)
Natural Gas Risk Management Activities [Member]
The derivative instruments entered into in connection with natural gas risk management activities by the entity.
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
Senior Notes NNN, 5.20% fixed-rate, due January 2036
EPO Senior Notes NNN [Member]
EPO Senior Notes NNN
Equity Component [Domain]
Equity Component [Domain]
364-Day $1.5 Billion & $2.7 Billion Revolving Credit Agreements
364-Day $1.5 Billion & $2.7 Billion Revolving Credit Agreements [Member]
364-Day $1.5 Billion & $2.7 Billion Revolving Credit Agreements
Adoption Date
Trading Arrangement Adoption Date
Aggregate grant date fair value
Grant Date Fair Value Of Equity Awards Issued During Period
The total fair value of share-based awards as of the grant date or modification date, as applicable.
Senior Notes MMM, 4.60% fixed-rate, due January 2031
EPO Senior Notes MMM [Member]
EPO Senior Notes MMM
Counterparty Name [Domain]
Counterparty Name [Domain]
Total other expense, net
Total other expense, net
Nonoperating Income (Expense)
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]
Lease liability carrying value
Operating Lease, Liability
Senior Notes WW, 4.15% fixed-rate, due October 2028
EPO Senior Notes WW [Member]
Senior debt obligation: Senior Notes WW.
Total Number of Common Units Held (in units)
Outstanding Units Owned By Affiliates Under Common Control
Represents the number of units held by related party affiliates.
Lease liability carrying value
Finance Lease, Liability
Other financing activities
Proceeds from (Payment for) Other Financing Activity
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Storage tanks
Containers [Member]
Equity: (see Note 8)
Equity:
Partners' Capital, Including Portion Attributable to Noncontrolling Interest [Abstract]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Phantom unit awards
Phantom Share Units (PSUs) [Member]
Repayments of debt
Repayments of Debt
Forecasted purchases of crude oil (MMBbls)
Crude Oil Marketing: Forecasted Purchases Of Crude Oil [Member]
The derivative instruments entered into in connection with the forecasted purchases of crude oil in connection with crude oil marketing activities.
EPO Junior Subordinated Notes C
EPO Junior Subordinated Notes C [Member]
EPO Junior Subordinated Notes C.
Cash contributions from noncontrolling interests
Noncontrolling Interest, Increase from Subsidiary Equity Issuance
Commitments and Contingent Liabilities
Commitments and Contingencies Disclosure [Text Block]
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
Operating lease income
Operating Lease, Lease Income
Construction in progress
Construction in Progress, Gross
Weighted Average
Weighted Average [Member]
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Corporate Nonsegment
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Other operating activities
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item
Net cash flow provided by operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Income Statement [Abstract]
Income Statement [Abstract]
Document Transition Report
Document Transition Report
Natural gas processing and fractionation
Natural Gas Processing And Fractionation [Member]
Represents natural gas processing and fractionation as a component of midstream services.
Intersegment Eliminations
Intersegment Eliminations [Member]
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
Senior Notes II, 4.85% fixed-rate, due March 2044
EPO Senior Notes II [Member]
Senior Debt Obligation : Senior Notes II.
City Area Code
City Area Code
Undivided joint interest, ownership interest sold, percent
Undivided Joint Interest, Ownership Interest Sold, Percent
Undivided Joint Interest, Ownership Interest Sold, Percent
Non-cash expense related to long-term operating leases (see Note 16)
Non-cash lease expense (amortization of ROU assets)
Operating Lease, Right-of-Use Asset, Periodic Reduction
Name
Forgone Recovery, Individual Name
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Weighted-Average Grant Date Fair Value per Unit
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Cash distributions paid to common unitholders
Partners' Capital Account, Distributions
Entity [Domain]
Entity [Domain]
Senior Notes J, 5.75% fixed-rate, due March 2035
EPO Senior Notes J [Member]
Senior debt obligation: Senior Notes J.
Plants, pipelines and facilities
Plants, Pipelines And Facilities [Member]
Long-lived depreciable assets used to transport and process product for the consumer.
Asset impairment charges in operating costs and expenses
Asset impairment charges
Impairment Charges Included in Operating Costs and Expenses
The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).
Current portion of income tax provision:
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Equity-based payment arrangement, expense
Share-Based Payment Arrangement, Expense
Transportation equipment
Transportation Equipment [Member]
Gross Amounts Offset in the Balance Sheet
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset
Measurement Basis [Axis]
Measurement Basis [Axis]
Common unit repurchases under 2019 Buyback Program (in units)
Total of common units repurchased and retired under a buyback program (in units)
Stock Repurchased and Retired During Period, Shares
Granted (in dollars per unit)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Amount included in opening balance transferred to other accounts during period
Contract with Customer, Liability, Revenue Recognized
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]
Cash payments made in connection with distribution equivalent rights
Cash payments made in connection with DERs
Cash Payments Made In Connection With Distribution Equivalent Rights
Total cash payments made in connection with distribution equivalent rights.
Forfeited (in dollars per unit)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
DILUTED EARNINGS PER COMMON UNIT
Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted [Abstract]
Senior Notes FFF, 5.05% fixed-rate, due January 2026
EPO Senior Notes FFF [Member]
Senior debt obligation: Senior Notes FFF
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
Debt issuance costs
Payments of Debt Issuance Costs
Entity Current Reporting Status
Entity Current Reporting Status
Net cash flow used in financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Total Shareholder Return Amount
Total Shareholder Return Amount
Amounts recorded during period
Contract With Customer, Asset, Increase
Amount of increase in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.
Net effect of changes in operating accounts (see Note 17)
Net effect of changes in operating accounts
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital
Financial liabilities:
Liabilities, Fair Value Disclosure [Abstract]
Cash flow hedge
Cash Flow Hedging [Member]
Employer contribution to EUPP
Employer contribution to EUPP
Employer contribution to participants unit purchase through the Employee Unit Purchase Plan. Represents the discount available through the plan.
Accounts payable – related parties
Increase (Decrease) in Accounts Payable, Related Parties
Reconciliation of net income to net cash flow provided by operating activities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
2029
Long-Term Debt, Maturity, Year Three
Storage and terminals
Storage And Terminals [Member]
Represents storage and terminal services as a component of midstream services.
Financing activities:
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Property, plant and equipment, net (see Note 4)
Property, plant and equipment, net
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Consolidated Revenues [Abstract]
Segment Reporting, Revenue [Abstract]
State
Income Tax Paid, State and Local, after Refund Received
Asset Derivatives
Amounts of Assets Presented in the Balance Sheet
Derivative Asset
Inventories
Inventory Disclosure [Text Block]
Senior Notes DDD, 3.20% fixed-rate, due February 2052
EPO Senior Notes DDD [Member]
Senior debt obligation: Senior Notes DDD.
Intangible Asset, Finite-Lived, Class [Axis]
Intangible Asset, Finite-Lived, Class [Axis]
Intangible Assets and Goodwill
Intangible Asset and Goodwill [Text Block]
Underlying Securities
Award Underlying Securities Amount
Comprehensive income attributable to noncontrolling interests
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Fair Value
Estimate of Fair Value Measurement [Member]
Revenues
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]
Petrochemical & Refined Products Services
Petrochemical And Refined Products Services [Member]
Petrochemical and Refined Products and Services business segment.
Senior Notes JJJ 4.95% fixed-rate, due February 2035
EPO Senior Notes JJJ [Member]
EPO Senior Notes JJJ.
Inventories
Increase (Decrease) in Inventories
Other investing activities
Payment for (Proceeds from) Other Investing Activity
Weighted-average discount rate
Operating Lease, Weighted Average Discount Rate, Percent
Commercial Paper Notes, variable-rates
Commercial Paper Notes
Commercial Paper Notes [Member]
Commercial Paper Notes Program.
Forecasted purchases of NGLs and related hydrocarbon products (MMBbls)
NGL Marketing Forecasted Purchases Of NGLs And Related Hydrocarbon products [Member]
The derivative instruments entered into in connection with the forecasted purchases of NGLs and related hydrocarbon purchases in connection with NGL marketing activities.
Forecasted sales of octane enhancement products (MMBbls)
Octane Enhancement: Forecasted Sales Of Octane Enhancement Products [Member]
The derivative instruments entered into in connection with the forecasted octane enhancement product sales.
Segment Reporting [Table]
Segment Reporting [Table]
Related Party Transaction [Table]
Related Party Transaction [Table]
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Schedule of Consolidated Lease Expense
Lease, Cost [Table Text Block]
Senior Notes BB, 5.95% fixed-rate, due February 2041
EPO Senior Notes BB [Member]
Senior debt obligation: Senior Notes BB.
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]
Office furniture and equipment
Office Equipment [Member]
Current Fiscal Year End Date
Current Fiscal Year End Date
Common units issued (in units)
Limited Partners' Capital Account, Units Issued
Attributable to investments in other entities
Deferred Tax Liabilities, Investment In Subsidiaries
Deferred tax liability attributable to temporary differences from the entity's investment in its wholly-owned subsidiaries.
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Derivative [Line Items]
Derivative [Line Items]
Employee Unit Purchase Plan
Employee Unit Purchase Plan [Member]
Under the employee unit purchase plan (EUPP), employees can purchase our common units at a discount through payroll deductions.
Forecasted natural gas purchases for plant thermal reduction (Bcf)
Natural Gas Processing: Forecasted Natural Gas Purchases For Plant Thermal Reduction [Member]
The derivative instruments entered into in connection with the plant thermal reduction of natural gas processing plants.
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
Fixed operating costs and expenses
Fixed Operating Costs and Expenses
Fixed operating costs and expenses represent the cost of operating our plants, pipelines and other fixed assets that generally remain constant independent of utilization.
Cash distributions paid to noncontrolling interests
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) to Income
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
Cash, Cash Equivalents and Restricted Cash [Abstract]
Restricted Cash and Cash Equivalent [Abstract]
Measure:
Measure [Axis]
Investments in Unconsolidated Affiliates
Equity Method Investments and Joint Ventures Disclosure [Text Block]
Financial Instruments
Liability Derivative Settlement Offset
The amount of the derivative liability to be cleared under master netting arrangements that have not been offset against net derivative instrument positions.
Asset retirement obligations, noncurrent
Asset Retirement Obligations, Noncurrent
Other operating costs and expenses
Other Cost and Expense, Operating
Equity Components [Axis]
Equity Components [Axis]
Related Party
Related parties
Related Party [Member]
Total
Income Tax Paid, after Refund Received
Senior Notes R, 6.125% fixed-rate, due October 2039
EPO Senior Notes R [Member]
Senior debt obligation: Senior Notes R.
Entity Interactive Data Current
Entity Interactive Data Current
Finance lease, liability, current
Finance Lease, Liability, Current
Variable Rate [Axis]
Variable Rate [Axis]
Entity Small Business
Entity Small Business
Comprehensive income attributable to common unitholders
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Depreciation, amortization and accretion
Depreciation, amortization and accretion in operating costs and expenses
The amount of expense recognized and charged to operating costs and expenses in the current period that reflects the allocation of the cost of assets over the assets' useful lives.
Property, Plant, and Equipment [Line Items]
Property, Plant, and Equipment [Line Items]
Accounts payable – trade
Increase (Decrease) in Accounts Payable, Trade
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Other assets
Other Assets, Noncurrent
Document Type
Document Type
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets other than goodwill
Other Asset Impairment Charges
Current
Short [Member]
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Total intrinsic value of phantom unit awards that vested during period
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested
Local Phone Number
Local Phone Number
Deferred revenue (noncurrent)
Contract with Customer, Liability, Noncurrent
Total deferred tax liabilities
Deferred Tax Liabilities, Gross
Decrease (increase) in:
Increase (Decrease) in Operating Assets [Abstract]
Commitments and contingent liabilities (see Note 16)
Commitments and Contingencies
Property, plant and equipment, gross
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
2030
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four
Executive Category:
Executive Category [Axis]
Counterparty Name [Axis]
Counterparty Name [Axis]
LIABILITIES AND EQUITY
Liabilities and Equity [Abstract]
Natural gas storage inventory management activities (Bcf)
Natural Gas Marketing: Natural Gas Storage Inventory Management Activities [Member]
The derivative instruments entered into in connection with natural gas storage inventory management activities.
Inventories (see Note 3)
Total
Inventory, Net
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Distribution per common unit (in dollars per unit)
Distribution Made to Limited Partner, Distributions Declared, Per Unit
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information [Abstract]
Reclassification of losses (gains) to net income
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
PEO Name
PEO Name
Senior Notes HHH, 4.60% fixed-rate, due January 2027
EPO Senior Notes HHH [Member]
Senior debt obligation: Senior Notes HHH
Cash Flow Hedges
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Total lease liability carrying value
Total Lease Liability
Present value of lessee's discounted obligation for lease payments.
Other segment items
Segment Reporting, Other Segment Item, Amount
Long-Lived Asset, Class [Axis]
Long-Lived Asset, Class [Axis]
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Entity Tax Identification Number
Entity Tax Identification Number
Changes in fair value of cash flow hedges
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
Long-Term Incentive Plan (2008)
Long Term Incentive Plan (2008) [Member]
The 2008 Long-Term Incentive Plan provides for awards of our common units and other rights to our non-employee directors and to consultants and employees of EPCO and its affiliates providing services to us.
Registration Statements and Equity Offerings [Table]
Registration Statements and Equity Offerings [Table]
Registration Statements and Equity Offerings [Table]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
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]
Restricted cash
Restricted cash
Restricted Cash and Cash Equivalent, Current
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]
Partnership Organization and Operations
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Debt Instrument [Axis]
Debt Instrument [Axis]
Total lease expense
Lease, Cost
Attributable to investment in OTA
Deferred Tax Liabilities, Unrealized Gains on Trading Securities
Long-Term
Long [Member]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Net losses (gains) attributable to asset sales and related matters
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
Schedule of Derivative Assets and Liabilities Balance Sheet
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Total current assets
Current assets
Assets, Current
Insider Trading Arrangements [Line Items]
Long-term debt (see Note 7)
Total long-term debt
Long-Term Debt, Excluding Current Maturities
Short-term leases
Short-Term Lease, Cost
Accounts receivable, net
Accounts receivable
Accounts Receivable, after Allowance for Credit Loss, Current
Commodity Derivative Instruments
Commodity derivatives
Commodity derivatives
Commodity Contract [Member]
Series A cumulative convertible preferred units (“preferred units”) (45,412 units outstanding at March 31, 2026 and December 31, 2025)
Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount
March 2023 $2.7 Billion Multi-Year Revolving Credit Agreement, variable-rate, due March 2030
Epo Multi Year Revolving Credit Facility [Member]
Represents EPO's $3.0 Billion Multi-Year Revolving Credit Facility.
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]
Reclassification out of Accumulated Other Comprehensive Income [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Abstract]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Sales of NGLs and related products
Sales Of NGLs And Related Products [Member]
NGL marketing activities generate revenues from the sale and delivery of purity NGLs and related products, which are taken title to through natural gas processing activities (i.e., equity NGL production) and open market and long-term contract purchases.
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
Depreciation, amortization and accretion expense in operating costs and expenses
Depreciation Amortization And Accretion In Operating Costs And Expenses Excluded From Gross Operating Margin
The amount of expense recognized and charged to operating costs and expenses in the current period that reflects the allocation of the cost of assets over the assets' useful lives excluded from gross operating margin.
Cover [Abstract]
Cover [Abstract]
Cash Collateral Received
Derivative Liability Cash Collateral Received
Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative liabilities.
Equity Awards Adjustments
Equity Awards Adjustments [Member]
Basic earnings per common unit (in dollars per unit)
Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Interest income
Interest Income, Other
Segment revenues:
Segment revenues [Abstract]
Segment revenues [Abstract]
Total segment gross operating margin
Total Segment Gross Operating Margin
Operating income before: (i) depreciation, amortization and accretion expense; (ii) non-cash consolidated asset impairment charges; (iii) operating lease expenses for which the entity does not have the payment obligation; (iv) gains and losses from asset sales and related transactions and (v) general and administrative costs.
Plan Name [Axis]
Plan Name [Axis]
Inventory Disclosure [Abstract]
Inventory Disclosure [Abstract]
Other long-term liabilities
Increase (Decrease) in Other Noncurrent Liabilities
Other, net
Other Nonoperating Income (Expense)
Deferred Revenue
Movement In Contract With Customer Liability [Roll Forward]
Movement In Contract With Customer Liability
Partnership income not subject to federal income tax
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent
Fractionation and isomerization
Fractionation And Isomerization [Member]
Represents fractionation and isomerization services as a component of midstream services.
Proceeds from Issuance or Sale of Equity [Abstract]
Proceeds from Issuance or Sale of Equity [Abstract]
Forfeited (in units)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
General and administrative costs
General and administrative costs
General and administrative expenses
General and Administrative Expense
Hedging Activities and Fair Value Measurements
Derivatives and Fair Value [Text Block]
Total segment gross operating margin
Segment Gross Operating Margin
Operating income before: (i) depreciation, amortization and accretion expense; (ii) non-cash consolidated asset impairment charges; (iii) operating lease expenses for which the entity does not have the payment obligation; (iv) gains and losses from asset sales and related transactions and (v) general and administrative costs.
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Other financial information:
Segment Reporting, Other Disclosure [Abstract]
Hedging Designation [Domain]
Hedging Designation [Domain]
Share Repurchase Program [Axis]
Share Repurchase Program [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Senior Notes AAA, 2.80% fixed-rate, due January 2030
EPO Senior Notes AAA [Member]
Senior debt obligation: Senior Notes AAA.
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Other segment income (expense):
Other segment income (expense) [Abstract]
Other segment income (expense) [Abstract]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Income Taxes
Income Tax Disclosure [Text Block]
Accounts payable
Accounts Payable, Current
Total segment midstream services
Oil and Gas Service [Member]
Senior Notes CCC, 3.95% fixed-rate, due January 2060
EPO Senior Notes CCC [Member]
Senior debt obligation: Senior Notes CCC.
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Schedule of Intangible Assets by Business Segment
Schedule Of Finite And Indefinite Lived Intangible Assets By Segment [Table Text Block]
Tabular disclosure of amortizable finite and indefinite lived intangibles assets by segment, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.
Entity Filer Category
Entity Filer Category
Refined products risk management activities (MMBbls)
Refined Products Risk Management Activities [Member]
The derivative instruments entered into in connection with refined products risk management activities by the entity.
Schedule of Offsetting Financial Liabilities
Offsetting Liabilities [Table Text Block]
Weighted-Average Interest Rate Paid
Debt Instrument, Interest Rate During Period
Remaining units available for issuance
Limited Partners Capital Account Remaining Units Available For Issuance in dollars
The dollar value of the remaining amount of limited partner units available for issuance, after taking into account limited partner units issued to date. The limited partners are partners of a publicly traded limited partnership or master limited partnership. Limited partners have limited liability and do not manage the partnership.
Lease liability, current, Consolidated Balance Sheet [Extensible Enumeration]
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Distributions received from unconsolidated affiliates attributable to earnings
Proceeds from Equity Method Investment, Distribution
Derivatives not designated as hedging instruments:
Not Designated as Hedging Instrument [Member]
Petrochemicals and refined products
Energy Related Inventory Petrochemicals And Refined Products
Carrying amount as of the balance sheet date of petrochemicals and refined products inventories.
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments and Joint Ventures [Abstract]
Grant date market price of common units (in dollars per unit)
Grant Date Fair Value Of Equity Awards Issued Price
The grant date fair value price per unit for share-based awards issued during the period.
2019 Buyback Program
2019 Buyback Program [Member]
Information about the 2019 Buyback Program.
Unbilled Revenue
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Other changes
Contract with Customer, Asset, Cumulative Catch-up Adjustment to Revenue, Modification of Contract
Transportation
Transportation [Member]
Represents transportation services as a component of midstream services, including marine logistics.
Net income
Net income
Net income
Total
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Total cash distributions
Payments of Distributions to Affiliates
Statement of Partners' Capital [Abstract]
Statement of Partners' Capital [Abstract]
Current assets:
Assets, Current [Abstract]
Liability Derivatives
Amounts of Liabilities Presented in the Balance Sheet
Derivative Liability
Senior Notes
Senior Notes [Member]
Entity Address, Address Line One
Entity Address, Address Line One
Vested (in dollars per unit)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Provision for income taxes (see Note 15)
Total provision for income taxes
Income Tax Expense (Benefit)
Fair value hedge
Fair Value Hedging [Member]
Senior Notes YY, 3.125% fixed-rate, due July 2029
EPO Senior Notes YY [Member]
EPO Senior Notes YY.
Basic weighted-average number of common units outstanding (in units)
Weighted Average Limited Partnership Units Outstanding, Basic
Statement [Table]
Statement [Table]
EPCO Companies
EPCO Companies [Member]
EPCO Companies
Equity-Based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Senior Notes GG, 4.45% fixed-rate, due February 2043
EPO Senior Notes GG [Member]
Represents EPO's Senior Notes GG.
Schedule of Remaining Performance Obligations
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
Schedule of Unbilled Revenue and Deferred Revenue
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
Gross Amounts of Recognized Assets
Derivative Asset, Subject to Master Netting Arrangement, before Offset
Senior Notes BBB, 3.70% fixed-rate, due January 2051
EPO Senior Notes BBB [Member]
Senior debt obligation: Senior Notes BBB.
Senior Notes W, 7.55% fixed-rate, due April 2038
EPO Senior Notes W [Member]
Senior debt obligation: Senior Notes W.
Federal
Current Federal Tax Expense (Benefit)