Other trade accounts receivables and other receivables Accounts and Other Receivables, Net, Current Total Contractual Obligation, Fiscal Year Maturity Schedule [Abstract] Operating Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] EnCap Flatrock Midstream EnCap Flatrock Midstream [Member] EnCap Flatrock Midstream Reconciliation of net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Distribution Type [Axis] Distribution Type [Axis] Related Party Transactions Related Party Transactions Disclosure [Text Block] Common equity repurchase program, remaining amount Share Repurchase Program, Remaining Authorized, Amount Estimated amortization expense related to finite-lived intangible assets for the next five years Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Cover [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Net increase/(decrease) in cash and cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect 3.85% senior notes due October 2023 Senior Notes Due In October 2023 At 3.85 Percent [Member] Represents the 3.85 percent senior notes, which are due October 2023. 3.55% senior notes due December 2029 Senior Notes Due In December 2029 At 3.55 Percent [Member] Senior Notes Due In December 2029 At 3.55 Percent Claim for Reimbursement From Insurance Claim for Reimbursement From Insurance [Member] Claim for Reimbursement From Insurance Measurement Input, Discount Rate Measurement Input, Discount Rate [Member] Schedule of Operating Lease Maturity Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Additional interest acquired (as a percent) Business Acquisition, Percentage of Voting Interests Acquired Gains/(losses) on investments in unconsolidated entities, net Gains/(losses) on investments in unconsolidated entities, net [Member] Gains/(losses) on investments in unconsolidated entities, net Trading Symbol Trading Symbol Ownership interest in unconsolidated entity prior to acquisition (as a percent) Ownership interest in unconsolidated entity (as a percent) Equity Method Investment, Ownership Percentage Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total long-term debt Long-Term Debt and Lease Obligation Gross Position - Asset Derivative Asset, Subject to Master Netting Arrangement, before Offset Non-NEOs Non-NEOs [Member] Substantially all trade accounts receivable, net, maximum age of balances past their scheduled invoice date (in days) Trade Accounts Receivable Net Disclosure of Maximum Age of Balances Past Scheduled Invoice Date The maximum number of days past their scheduled invoice date for substantially all of the trade accounts receivable. Interest rate cash flow hedge derivative at fair value, net Interest Rate Cash Flow Hedge Derivative at Fair Value, Net Position [Axis] Position [Axis] Eagle Ford Terminals Corpus Christi LLC Eagle Ford Terminals Corpus Christi LLC [Member] Eagle Ford Terminals Corpus Christi LLC, a crude oil terminal and dock company. Disposal Group Name [Domain] Disposal Group Name [Domain] 2026 Lessor, Operating Lease, Payment to be Received, Year Two Income Tax Examination [Line Items] Income Tax Examination [Line Items] 2029 Lessor, Operating Lease, Payment to be Received, Year Five Net gains/(losses) for the period included in earnings [Extensible Enumeration] Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Partners' Capital and Distributions [Line Items] Partners' Capital and Distributions [Line Items] Partners' Capital and Distributions [Line Items] Net Income Per Common Unit Earnings Per Share, Policy [Policy Text Block] Organization and Basis of Consolidation and Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Inventory, Linefill and Long-term Inventory Inventory, Policy [Policy Text Block] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] 2026 Other Commitment, to be Paid, Year Two Hedging Relationship [Domain] Hedging Relationship [Domain] 2025 Operating and Finance Leases, Liability, to be Paid, Year One Operating and Finance Leases, Liability, to be Paid, Year One Award Timing Disclosures [Line Items] Total gain (loss) on derivatives recognized in net income Derivative, Gain (Loss) on Derivative, Net Investment, Name [Domain] Investment, Name [Domain] Crude oil Crude Oil [Member] Finance lease right-of-use assets, gross Finance Lease, Right-of-Use Asset, before Accumulated Amortization Effect of Collateral Netting Offsetting [Abstract] 2027 Operating and Finance Leases, Liability, to be Paid, Year Three Operating and Finance Leases, Liability, to be Paid, Year Three CASH FLOWS FROM FINANCING ACTIVITIES Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Segment Reporting Segment Reporting, Policy [Policy Text Block] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Plan Name [Domain] Plan Name [Domain] United States UNITED STATES Cash received from sales of linefill Cash Received Related To Sales Of Linefill Cash Received Related To Sales Of Linefill Northern Delaware Basin Gathering System Northern Delaware Basin Gathering System [Member] Northern Delaware Basin Gathering System Terminalling, storage and other agreement revenues Terminalling, Storage And Other Agreement Revenues [Member] Terminalling, Storage And Other Agreement Revenues Land and other Land And Other [Member] This element represents the real estate assets held for productive use and related non-depreciable assets. Other long-term assets, net Other Assets, Noncurrent Leases Leases [Abstract] Estimated undiscounted reserve for environmental liabilities, short-term [Extensible Enumeration] Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration] Cost Finite-Lived Intangible Assets, Gross Payments for legal settlements Payments for Legal Settlements Agreement to Store at Facilities Owned by Equity Method Investee Agreements To Utilize Assets Of Equity Method Investees [Member] Agreements to store crude oil at facilities or transport crude oil on pipelines owned by equity method investees. Operating Segments Operating Segments [Member] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Additions Contract with Customer, Liability, Additions Amount of additions to obligation to transfer good or service to customer for which consideration from customer has been received or is due. Plains Oryx Permian Basin LLC Plains Oryx Permian Basin LLC [Member] Plains Oryx Permian Basin LLC Accretion expense Asset Retirement Obligation, Accretion Expense Schedule of Future Non-Cancelable Commitments Contractual Obligation, Fiscal Year Maturity [Table Text Block] Impact due to contractual rights of offset with counterparties Contract With Customer, Contractual Rights Of Offset With Counterparties Amount of contractual rights of offset with counterparties that reduces the entity's right to consideration in exchange for good or service transferred to customer. Transportation Transportation [Member] Transportation Award Timing Method Award Timing Method [Text Block] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Entity Common Stock Outstanding (in units) Entity Common Stock, Shares Outstanding Finance lease, weighted-average lease term Finance Lease, Weighted Average Remaining Lease Term Capital contributions to equity method investees excluding capitalized interest Capital Contributions To Equity Method Investees Excluding Capitalized Interest Cash outflow for capital contributions (excluding capitalized interest) subsequent to the initial purchase of interest in equity method investments, to fund the entity's portion of development, construction or capital expansion projects of the equity method investees, net of cash received as a return of investment. Environmental Matters Environmental Costs, Policy [Policy Text Block] Insider Trading Policies and Procedures [Line Items] Use of Estimates Use of Estimates, Policy [Policy Text Block] Other long-term debt, net Noncurrent portion of other long-term debt Other Long-Term Debt, Noncurrent 5.95% senior notes due June 2035 Senior Notes Due in June 2035 at 5.95% [Member] 5.95% Senior Notes Due June 2035 Adjustment to Compensation, Amount Adjustment to Compensation Amount Compensation Amount Outstanding Recovery Compensation Amount Plains All American PNG Successor Long-Term Incentive Plan Plains All American P N G Successor Long Term Incentive Plan [Member] Represents information related to the Plains All American PNG Successor Long-Term Incentive Plan. Disposal Group Classification [Axis] Disposal Group Classification [Axis] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Transaction Type [Axis] Transaction Type [Axis] Entity Small Business Entity Small Business Company Selected Measure Amount Company Selected Measure Amount Tabular List, Table Tabular List [Table Text Block] Notes Due In June 2035 at 5.75 Percent Notes Due In June 2035 at 5.75 Percent [Member] Notes Due In June 2035 at 5.75 Percent Level 3 Fair Value, Inputs, Level 3 [Member] Derivative Hedge Effectiveness Determination Derivatives, Methods of Accounting, Hedge Effectiveness [Policy Text Block] Equity-Indexed Compensation Plans Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Distribution rate reset, basis spread on variable rate (as a percent) Preferred Units, Distribution Rate Reset, Basis Spread on Variable Rate The percentage points to be added to the applicable rate of the ten-year U.S. Treasury to calculate the new distribution rate on the preferred units if the holders elect to reset the distribution rate. Antidilutive securities excluded from computation of net income per common unit (in units) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Certain Straddle Plants Certain Straddle Plants [Member] Certain Straddle Plants Less: Present value discount Finance Lease, Liability, Undiscounted Excess Amount Linefill, Volumes (in barrels) Inventory, Volumes Linefill The volume of linefill and base gas inventory as of the balance sheet date. Schedule of Lessor Operating Lease Revenue Operating Lease, Lease Income [Table Text Block] Schedule of Remaining Performance Obligations Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Impairment of Long-Lived Assets (Held and Used) Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] White Cliffs Pipeline, L.L.C. White Cliffs Pipeline LLC [Member] White Cliffs Pipeline, LLC, a crude oil pipeline company. Asset Acquisition [Axis] Asset Acquisition [Axis] Credit Facility [Domain] Credit Facility [Domain] Outstanding checks included in accounts payable that were reclassified from cash and cash equivalents Liabilities for Outstanding Checks Liability as of the balance sheet date of outstanding checks that were reclassified from cash and cash equivalents to accounts payable and accrued liabilities. Stock repurchase program, authorized amount Share Repurchase Program, Authorized, Amount Inventory, Linefill and Long-term Inventory Inventory Disclosure [Text Block] Redemption price (in dollars per unit) Preferred Stock, Redemption Price Per Share Noncontrolling interest, increase from business combination Noncontrolling Interest, Increase from Business Combination Contract With Customer, Asset And Liability [Table] Contract With Customer, Asset And Liability [Table] Contract With Customer, Asset And Liability [Table] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Depreciation expense Depreciation Total net derivative asset/(liability) Derivative, Fair Value, Net 2025 Lessee, Operating Lease, Liability, to be Paid, Year One EMG Medallion 2 Holdings,LLC EMG Medallion 2 Holdings [Member] EMG Medallion 2 Holdings Other financing activities Proceeds from (Payments for) Other Financing Activities Comprehensive income attributable to PAA Comprehensive Income (Loss), Net of Tax, Attributable to Parent Finance lease, weighted-average discount rate Finance Lease, Weighted Average Discount Rate, Percent Derivative Assets Offsetting Derivative Assets [Abstract] Derivatives That Do Not Qualify for Hedge Accounting Derivatives, Methods of Accounting, Derivatives Not Designated or Qualifying as Hedges [Policy Text Block] 2025 Finance Lease, Liability, to be Paid, Year One Award Type Award Type [Axis] Net deferred tax liabilities Deferred Tax Liabilities, Net Estimated size of release (in bbl) Estimated Size of Release Represents the estimated size of the pipeline release. Basic net income per common unit (in dollars per unit) Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax Total repayments Repayments of Debt ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag PAGP Plains G P Holdings L P [Member] Represents information pertaining to Plains GP Holdings, L.P. ("PAGP"), which owns a limited partner interest in Plains AAP, L.P. Contributions from noncontrolling interests Partners' Capital Account, Contributions ExxonMobil Corporation Exxon Mobil Corporation [Member] Represents information pertaining to Exxon Mobil Corporation and its subsidiaries. Long-lived assets Long-Lived Assets Other Other Debt [Member] Other types of debt not specifically identified. Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Foreign Currency Transactions/Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Expiration Date Trading Arrangement Expiration Date Current liabilities Current Liabilities [Member] Primary financial statement caption encompassing current liabilities. Annualized distribution rate (in dollars per unit) Preferred Units, Annualized Distributions Per Unit The annualized distributions per unit to which holders of the preferred units are entitled. Sale of units, price per unit (in dollars per unit) Partners' Capital Account, Sale of Units, Price Per Unit Price per unit of partnership interest sold during the period. Operating lease liabilities, current Operating Lease, Liability, Current Equity Method Investees Equity Method Investee [Member] Other revenues Revenue Not from Contract with Customer Total Shareholder Return Amount Total Shareholder Return Amount Finance lease liabilities Lessee, Finance Lease, Description [Abstract] Business combination, consideration transferred, including equity interest in acquire held prior to combination Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held before Combination Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Liabilities incurred Asset Retirement Obligation, Liabilities Incurred Subsidiary of LM Energy Partners Subsidiary of LM Energy Partners [Member] Subsidiary of LM Energy Partners NGL Natural Gas Liquids (NGL) [Member] Arbitration Proceedings Against Insurers Arbitration Proceedings Against Insurers [Member] Arbitration Proceedings Against Insurers Debt Instrument [Line Items] Debt Instrument [Line Items] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Keyera Fort Saskatchewan Facility Keyera Fort Saskatchewan Facility [Member] Keyera Fort Saskatchewan Facility Asset acquisition amount, net to our interest in the Permian JV Asset Acquisition Consideration Transferred Net To Ownership Interest Amount of consideration transferred associated with the asset acquisition reflected on a net basis, representing the entity's proportionate share based on its ownership percentage of the less than wholly owned consolidated subsidiary. Accumulated depreciation Accumulated depreciation Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization 6.65% senior notes due January 2037 Senior Notes Due In January 2037 At 6.65 Percent [Member] Represents the 6.65 percent senior notes, which are due in January 2037. Other Income/(Expense), Net Other Nonoperating Income (Expense) [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Total borrowings Proceeds from Issuance of Debt Environmental Remediation Contingency [Axis] Environmental Remediation Contingency [Axis] Distribution rate (in dollars per unit) Preferred Stock, Dividend Rate, Per-Dollar-Amount Litigation Case [Axis] Litigation Case [Axis] CASH FLOWS FROM INVESTING ACTIVITIES Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Concentration Risk Type [Domain] Concentration Risk Type [Domain] 2028 Other Commitment, to be Paid, Year Four Outstanding letters of credit Letters of credit Letters of Credit Outstanding, Amount Schedule of Change in Asset Retirement Obligation Schedule of Change in Asset Retirement Obligation [Table Text Block] Product sales revenues Sales Product [Member] 3.80% senior notes due September 2030 Senior Notes Due In September 2030 At 3.80 Percent [Member] Senior Notes Due In September 2030 At 3.80 Percent Arbitration Proceedings Against Insurers, Pending Arbitration Proceedings Against Insurers, Pending [Member] Arbitration Proceedings Against Insurers, Pending LTIP awards authorized (in units) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Document Fiscal Period Focus Document Fiscal Period Focus 2028 Long-Term Debt, Maturity, Year Four All Executive Categories All Executive Categories [Member] Field operating costs Field Operating Costs [Member] Costs related to site and field operations during the period. Statement of Financial Position Location, Balance [Domain] Statement of Financial Position Location, Balance [Domain] Expected amortization, year two Finite-Lived Intangible Asset, Expected Amortization, Year Two Receivable for remaining portion of release costs probable of recovery from insurance Loss Contingency, Receivable Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] ASSETS Assets [Abstract] Other comprehensive income/(loss) Total period activity Other Comprehensive Income (Loss), Net of Tax Document Type Document Type Derivative Contract [Domain] Derivative Contract [Domain] Distributions paid to unitholders (Note 11) Distribution Made to Limited Partner, Cash Distributions Paid Net borrowings/(repayments) under commercial paper program (Note 10) Proceeds from (Repayments of) Commercial Paper Schedule of Segment Financial Data Schedule of Segment Reporting Information, by Segment [Table Text Block] Derivative liability, statement of financial position [extensible enumeration] Derivative Liability, Statement of Financial Position [Extensible Enumeration] Average rate locked (percent) Derivative, Average Fixed Interest Rate Loss contingency, receivable, period increase (decrease) Loss Contingency, Receivable, Period Increase (Decrease) Schedule of Contracts with Customers, Change in Asset and Liability Balance Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Schedule of Estimated Amortization Expense Related to Finite-lived Intangible Assets for the next Five Years Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Inventory, Current [Table] Inventory, Current [Table] Maximum Maximum [Member] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Intangible assets, net Net Finite-Lived Intangible Assets, Net Cactus II Pipeline LLC Cactus II Pipeline LLC [Member] Cactus II Pipeline LLC Shares issued, price per share (in dollars per unit) Shares Issued, Price Per Share Partner Capital Components [Axis] Partner Capital Components [Axis] Total lease cost Lease, Cost Statistical Measurement [Axis] Statistical Measurement [Axis] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Lessor, Lease, Description [Line Items] Lessor, Lease, Description [Line Items] INCOME BEFORE TAX Income before tax Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Fair value amount Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value Property and equipment in excess of tax values Deferred Tax Liabilities, Property, Plant and Equipment Name Outstanding Recovery, Individual Name Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Loss contingency, claims settled, number Loss Contingency, Claims Settled, Number Award Timing Predetermined Award Timing Predetermined [Flag] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Investment, Name [Axis] Investment, Name [Axis] Natural Gas Purchases for Processing and Operational Needs Contracts related to Natural Gas purchases [Member] Represents derivative instruments consisting of long natural gas position related to purchase of natural gas. Linefill (Price/Unit of measure) (in dollars per unit) Inventory, Weighted Average Price Per Unit, Linefill The weighted-average price per unit of linefill and base gas inventory. Customer contracts and relationships Customer relationships Customer Relationships [Member] Threshold for acquisition period qualification Acquisition Measurement Period Threshold Represents the minimum acquisition amount for the debt-to-EBITDA coverage ratio covenant compliance requirement to change. Other long-term liabilities and deferred credits Accrued Environmental Loss Contingencies, Noncurrent Counterparty Name [Domain] Counterparty Name [Domain] Schedule of Amortization Expense Finite-Lived Intangible Assets Amortization Expense [Table Text Block] Derivative Instruments AOCI Cash Flow Hedge Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] Current income tax expense Total current income tax expense Current Income Tax Expense (Benefit) Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Ownership [Axis] Ownership [Axis] Intangible Assets Intangible Assets, Finite-Lived, Policy [Policy Text Block] Total partners’ capital Beginning balance Ending balance Partners' Capital, Including Portion Attributable to Noncontrolling Interest (Gain)/loss on foreign currency revaluation Gain (loss) on revaluation of foreign currency transactions and monetary assets and liabilities Gain (Loss), Foreign Currency Transaction, before Tax Customer [Axis] Customer [Axis] Amounts allocated to participating securities Participating Securities, Distributed and Undistributed Earnings (Loss), Basic 2027 Lessor, Operating Lease, Payment to be Received, Year Three Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Other investments Other Equity Method Investment [Member] Other Equity Method Investment Distribution per unit (in dollars per unit) Preferred Stock, Dividends, Per Share, Cash Paid Schedule of Linefill and Long-term Inventory Schedule of Inventory, Noncurrent [Table Text Block] Advantage Pipeline Holdings LLC Advantage Pipeline Holdings LLC [Member] Advantage Pipeline Holdings LLC Other Deferred Tax Liabilities, Other NET INCOME Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Plains and Enbridge Plains and Enbridge [Member] Plains and Enbridge Total income tax expense Income tax expense Income Tax Expense (Benefit) OTHER INCOME/(EXPENSE) Nonoperating Income (Expense) [Abstract] Notional amount of derivatives Derivative, Notional Amount Repayments of senior notes (Note 10) Repayments of senior notes Repayments of Senior Debt Net Carrying Value Presented on the Balance Sheet Derivative Asset Senior Secured Hedged Inventory Facility Senior Secured Hedged Inventory Facility [Member] Represents activity related to Senior secured hedged inventory credit facility. Revenue from contracts with customers Revenues from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Charge related to the write-down of inventory Inventory Write-down Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Linefill Linefill subtotal, Carrying Value Linefill Linefill Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities 6.70% senior notes due May 2036 Senior Notes Due In May 2036 At 6.70 Percent [Member] Represents the 6.70 percent senior notes, which are due in May 2036. Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] Business Acquisition [Line Items] Business Acquisition [Line Items] Investments in Unconsolidated Entities Equity Method Investments [Policy Text Block] All Adjustments to Compensation All Adjustments to Compensation [Member] Schedule of Investments in and Summarized Financial Information for Entities Accounted for under the Equity Method of Accounting Equity Method Investments [Table Text Block] Proceeds from divestiture of interest in joint venture Proceeds from Divestiture of Interest in Joint Venture Series A Preferred Units Series A Preferred Units [Member] Series A preferred units representing limited partner interests in the entity that rank pari passu with Series B preferred units, and senior to our common units and to each other classes or series of our equity securities with respect to distribution rights and rights upon liquidation and are convertible into common units by the holder or the entity under certain conditions. Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] Schedule of Distributions Distributions Made to Limited Partner, by Distribution [Table Text Block] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Legal Entity [Axis] Legal Entity [Axis] Disposed of by Sale Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Operating lease revenue Operating Lease, Lease Income 8 forward starting swaps (30-year), 3.09% Eight Forward Starting Thirty Year Interest Rate Swaps 3.09 Percent [Member] Eight Forward Starting Thirty Year Interest Rate Swaps 3.09 Percent Commodity Derivatives Commodity Contract [Member] Thereafter Operating and Finance Leases, Liability, to be Paid, after Year Five Operating and Finance Leases, Liability, to be Paid, after Year Five Remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Ratio of debt-to-EBITDA during acquisition period, maximum Debt Instrument, Coverage Ratio Debt to EBITDA Acquisition Period Maximum Represents the maximum ratio of debt to EBITDA (earnings before interest, taxes, depreciation and amortization) required to be maintained during acquisition period under the credit agreement. 8.25% note due April 2027 Notes Due In April 2027 At 8.25 Percent [Member] Notes Due In April 2027 At 8.25 Percent Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity Address, State or Province Entity Address, State or Province Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Investments in Unconsolidated Entities Schedule of Equity Method Investments [Line Items] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] GP General Partner [Member] Weighted-average remaining lease term (in years): Lease, Weighted Average Remaining Lease Term [Abstract] Lease, Weighted Average Remaining Lease Term Trade accounts payable Trade accounts payable to related parties Accounts Payable, Trade, Current Inventory [Domain] Inventory [Domain] Estimated undiscounted reserve for environmental liabilities, long-term [Extensible Enumeration] Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration] Canadian federal and provincial corporate tax rate Foreign Tax Rate This element represents the rate at which the foreign income of an entity is charged to tax as per the enacted tax laws. LIABILITIES AND PARTNERS’ CAPITAL Liabilities and Equity [Abstract] Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Related party note payable and receivable interest rate (as a percent) Related Party Transaction, Rate Restatement Determination Date Restatement Determination Date Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Interest Rate Derivatives Interest Rate Contract [Member] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Concentration Risk [Table] Concentration Risk [Table] Long-term operating lease right-of-use assets, net Long-term operating lease right-of-use assets, net Operating Lease, Right-of-Use Asset Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Impact of derivative activities recognized in earnings Derivative Instruments, Gain (Loss) [Line Items] Other Other Inventory [Member] Category of inventory not separately disclosed. Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Business combination, measurement input Business Combination, Measurement Input Business Combination, Measurement Input Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] 2025 Other Commitment, to be Paid, Year One Schedule of Environmental Loss Contingencies by Site Schedule of Environmental Loss Contingencies by Site [Table Text Block] Common Units Common Units [Member] Common units representing limited partner interests in the entity. Net Income Per Common Unit Earnings Per Share [Text Block] Subsequent Event Subsequent Event [Member] COSTS AND EXPENSES Significant segment expenses: Costs and Expenses [Abstract] Credit facility extensions available Number of One Year Extensions Provided for Under Agreement Number of One Year Extensions Provided for Under Agreement Inventory [Axis] Inventory [Axis] Cash distribution Dividends, Preferred Stock 3.60% senior notes due November 2024 Senior Notes Due In November 2024 At 3.60 Percent One [Member] Represents the 3.60 percent senior notes, which are due in November 2024. Unrealized gain on hedges Interest rate derivatives, net Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Income Taxes Income Tax, Policy [Policy Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Schedule of Calculation of Basic and Diluted Net Income Per Common Unit [Line Items] Schedule of Calculation of Basic and Diluted Net Income Per Common Unit [Line Items] Schedule of Calculation of Basic and Diluted Net Income Per Common Unit [Line Items] Segments [Domain] Segments [Domain] Schedule of Finance Lease Maturity Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Inventory, Volumes (in barrels) Inventory, Volumes Current The volume of current inventory as of the balance sheet date. Interest Rate Derivatives [Abstract] Interest Rate Derivatives [Abstract] PEO PEO [Member] Fuel Gas Requirements Fuel Gas Requirements Contracts [Member] Fuel Gas Requirements Contracts NET INCOME PER COMMON UNIT (NOTE 4): Earnings Per Unit [Abstract] Line 901 Incident Line 901 Incident [Member] Represents information pertaining to the crude oil release from the Las Flores to Gaviota Pipeline in Santa Barbara County, California. Name Trading Arrangement, Individual Name Distribution Made to Limited Partner [Line Items] Distribution Made to Limited Partner [Line Items] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] California assets California assets [Member] California assets Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Entity Public Float Entity Public Float Number of pipelines or partial pipelines contributed Number of Pipelines or Partial Pipelines Contributed Number of Pipelines or Partial Pipelines Contributed Disposal Group Name [Axis] Disposal Group Name [Axis] 2028 Lessor, Operating Lease, Payment to be Received, Year Four Equity earnings in unconsolidated entities Equity earnings in unconsolidated entities Income (Loss) from Equity Method Investments Proceeds from the issuance of related party notes (Note 16) Proceeds from related party debt Proceeds from Related Party Debt Net income allocated to common unitholders — Basic Net income allocated to common unitholders — Basic Net Income (Loss) Allocated to Common Unitholders, Basic This element represents the net income (loss) allocated to common unitholders in the calculation of basic net income per common unit after deducting amounts allocated to preferred unitholders and participating securities, as applicable, under the two class method. Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Dividends payable Dividends Payable Net Income Per Common Unit Basic and Diluted Net Income Per Common Unit [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. 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] Consolidated finance subsidiary co-issuer Consolidated Finance Subsidiary Issuer [Member] A consolidated finance subsidiary which is a co-issuer of the entity's debt securities. NGL Natural Gas Liquids Segment [Member] Natural Gas Liquids Segment Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Business combination, step acquisition, equity interest in acquiree, including subsequent acquisition (as a percent) Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage Midway Pipeline LLC Midway Pipeline LLC [Member] Midway Pipeline LLC Credit Agreements and Commercial Paper Program Line Of Credit And Commercial Paper [Member] Represents information pertaining to the line of credit and commercial paper agreement entered into by the entity. Local Phone Number Local Phone Number Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Arbitration Proceedings Against Insurers, Panel Ruling In January 2025 Arbitration Proceedings Against Insurers, Panel Ruling In January 2025 [Member] Arbitration Proceedings Against Insurers, Panel Ruling In January 2025 BP p.l.c and subsidiaries BP p.l.c and Subsidiaries [Member] BP p.l.c and Subsidiaries Intangible Assets Finite-Lived Intangible Assets [Member] Equity Method Investment [Table] Equity Method Investment [Table] Other current liabilities Accrued Environmental Loss Contingencies, Current Changes in assets and liabilities, net of acquisitions: Increase (Decrease) in Operating Capital [Abstract] LONG-TERM LIABILITIES Liabilities, Noncurrent [Abstract] The Energy & Minerals Group The Energy & Minerals Group [Member] The Energy & Minerals Group PEO Total Compensation Amount PEO Total Compensation Amount Propane Contracts Related to Subsequent Sale of Products Propane Contracts Related To Subsequent Sale Of Product [Member] Represents the derivative instruments for propane that hedges the subsequent sale of products derived from our natural gas processing and NGL fractionation activities. Gross Position - Liability Derivative Liability, Subject to Master Netting Arrangement, before Offset Non-operated/undivided joint interest rate, sold Non-Operated/Undivided Joint Interest Ownership Percentage, Sold Non-Operated/Undivided Joint Interest Ownership Percentage, Sold Lessor, Lease, Description [Table] Lessor, Lease, Description [Table] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Distributions per common unit (in dollars per unit) Distribution Made to Limited Partner, Distributions Paid, Per Unit Related party interest payable Interest Payable, Current Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Schedule of Long-lived Assets Attributable to Geographic Areas Long-Lived Assets by Geographic Areas [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] 2027 Contractual Obligation, to be Paid, Year Three Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Line of Credit Line of Credit [Member] $750 million 3.60% Senior Notes due November 2024 Senior Notes Due In November 2024 At 3.60 Percent [Member] Senior Notes Due In November 2024 At 3.60 Percent Crude Oil Crude Oil Segment [Member] Crude Oil Segment Segment Reporting [Abstract] Segment Reporting [Abstract] Deficiencies under minimum volume commitments, net Deficiencies Under Minimum Volume Commitments, Net Includes the impact of amounts billed to counterparties for their deficiency obligation, net of applicable amounts subsequently recognized into revenue. Certain agreements require counterparties to deliver, transport or throughput a minimum volume over an agreed upon period. Substantially all of such agreements were entered into with counterparties to economically support the return on the reporting entity's capital expenditure necessary to construct the related asset. Some of these agreements include make-up rights if the minimum volume is not met. A receivable from the counterparty is recorded in the period that services are provided or when the transaction occurs, including amounts for deficiency obligations from counterparties associated with minimum volume commitments. If a counterparty has a make-up right associated with a deficiency, the revenue attributable to the counterparty’s make-up right is deferred and is subsequently recognized at the earlier of when the deficiency volume is delivered or shipped, when the make-up right expires or when it is determined that the counterparty’s ability to utilize the make-up right is remote. Entity Central Index Key Entity Central Index Key Distributions Made to Limited Partner [Table] Distributions Made to Limited Partner [Table] Total other segment items Total other segment items Segment Reporting, Other Segment Item, Amount Exchange Traded Exchange Traded [Member] Schedule of Inventory Schedule of Inventory, Current [Table Text Block] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Power Supply Requirements Power Supply Requirements Contracts [Member] Represents the derivative instruments consisting of power positions which hedge a portion of power supply requirements. Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Trade accounts payable and other Increase (Decrease) in Accounts Payable and Accrued Liabilities Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Segment Information Segment Reporting Disclosure [Text Block] Related party interest receivable Interest Receivable, Current Contract With Customer, Asset And Liability [Line Items] Contract With Customer, Asset And Liability [Line Items] [Line Items] for Contract With Customer, Asset And Liability [Table] Working capital and other assets and liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Working Capital and Other Assets and Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Working Capital and Other Assets and Liabilities Costs related to the Line 901 incident Loss Contingency, Loss in Period Title Trading Arrangement, Individual Title Consolidated Entities [Axis] Consolidated Entities [Axis] Translation Adjustments Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member] Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Position [Domain] Position [Domain] PARTNERS’ CAPITAL Partners' Capital, Including Portion Attributable to Noncontrolling Interest [Abstract] City Area Code City Area Code CURRENT LIABILITIES Liabilities, Current [Abstract] Auditor Location Auditor Location Number of redemptions transactions limited to Preferred Unit Redemption, Number of Redemptions Transactions Limited To The number of redemption transactions we are limited to conducting. Derivatives That Qualify for Hedge Accounting Derivatives, Methods of Accounting, Hedging Derivatives [Policy Text Block] Net income allocation (as a percent) Partnership Agreement, Net Income Allocation Percent Partnership Agreement, Net Income Allocation Percent Disposal Group Classification [Domain] Disposal Group Classification [Domain] Revenue Recognition Revenue [Policy Text Block] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Capline Pipeline Company LLC (“Capline”) Capline Pipeline Company LLC [Member] Capline Pipeline Company LLC Income tax expense at statutory rate Foreign Income Tax Expense (Benefit) at Foreign Statutory Rate The amount of foreign income tax expense or benefit for the period computed by applying the foreign statutory tax rates to foreign pretax income from continuing operations. Change in Contract Liabilities [Roll Forward] Change In Contract With Customer, Liability [Roll Forward] Change In Contract With Customer, Liability [Roll Forward] Preferred unit, distribution percentage spread (as a percent) Preferred Unit, Distribution Percentage Spread Percentage spread that will be added to the then-current three-month LIBOR to determine the distribution that will be paid. Repurchase of common units (Note 11) Payments for Repurchase of Common Stock Long-term inventory (Price/Unit of measure) (in dollars per unit) Inventory, Weighted Average Price Per Unit, Noncurrent The weighted-average price per unit of noncurrent inventory. Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Long Long [Member] Preferred Units Repurchased and Retired During Period, Shares Repurchase and cancellation of common units under the Common Equity Repurchase Program (in units) Preferred Units Repurchased and Retired During Period, Shares Stock Repurchased and Retired During Period, Shares Related Party Transactions Related Party Transaction [Line Items] Inventory Increase (Decrease) in Inventories Total release costs probable of recovery Loss Contingency, Received and Receivable Total estimated recoveries from third parties associated with a loss contingency, including amounts received to date and estimated amounts recoverable. 2024 Settlements 2024 Settlements [Member] 2024 Settlements Schedule of Debt Schedule of Debt [Table Text Block] General and administrative expenses Segment general and administrative expenses General and Administrative Expense 2026 Long-Term Debt, Maturity, Year Two Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Equity Awards Adjustments Equity Awards Adjustments [Member] Total operating lease liabilities Lease liabilities Operating Lease, Liability Underlying Securities Award Underlying Securities Amount Related party interest income Interest Income, Other 2029 Finance Lease, Liability, to be Paid, Year Five Foreign currency revaluation Net Gain (Loss) On Foreign Currency Revaluation Includes gains and losses from the revaluation of foreign currency transactions and monetary assets and liabilities. Amendment Flag Amendment Flag Gain from sale of assets Gain (Loss) on Disposition of Property Plant Equipment Probable vesting, unrecognized fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Probable Vesting, Unrecognized Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Probable Vesting, Unrecognized Fair Value Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Noncontrolling interests Partners' Capital Attributable to Noncontrolling Interest Debt Debt Disclosure [Text Block] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Other commitments Other Commitment, Fiscal Year Maturity [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Debt instrument face value Debt Instrument, Face Amount Entity Address, Postal Zip Code Entity Address, Postal Zip Code Type of Arrangement and Non-arrangement Transactions [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Beginning Balance Ending Balance Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Partners' Capital and Distributions Partners' Capital Notes Disclosure [Text Block] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Leases Lessor, Operating Leases [Text Block] Litigation Status [Axis] Litigation Status [Axis] Other investing activities Payments for (Proceeds from) Other Investing Activities Other long-term assets, net Other Noncurrent Assets [Member] Issuance of common units under equity-indexed compensation plans (in units) Partners' Capital Account, Unit-Based Payment Arrangement, Number of Units Partners Capital and Distribution [Line Items] Partners Capital and Distribution [Line Items] No definition available. 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] Auditor Name Auditor Name Current income tax expense: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Other current liabilities Other Current Liabilities [Member] 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] Construction in progress expenditures incurred but not yet paid Construction in Progress Expenditures Incurred but Not yet Paid Initial margin Initial Margin The amount of cash or securities required by a broker or counterparty as security for a trading or derivatives securities position. Estimated Useful Lives (Years) Property, Plant and Equipment, Useful Life Segment amounts attributable to noncontrolling interests Segment Amounts Attributable To Noncontrolling Interests Segment Amounts Attributable To Noncontrolling Interests Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Environmental Remediation Contingency [Domain] Environmental Remediation Contingency [Domain] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Revenue recognition term (in years) Contract with Customer, Liability, Revenue Recognition Term Contract with Customer, Liability, Revenue Recognition Term Property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Other Other Lease Cost Other Lease Cost 2025 Contractual Obligation, to be Paid, Year One Financing cash flows for finance leases Finance Lease, Principal Payments Amortization Amortization Business combination, step acquisition, equity interest in acquire (as a percent) Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage Senior Unsecured Revolving Credit Facility Senior Unsecured Revolving Credit Facility [Member] Represents the PAA senior unsecured revolving credit facility. Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] 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] Total assets Assets Purchases and related costs Purchases and related costs Cost of Goods and Services Sold Additions to property, equipment and other Payments to Acquire Property, Plant, and Equipment Other long-term liabilities and deferred credits Other Liabilities, Noncurrent Crude Oil Basis Spread Position Crude Oil Basis Spread Position [Member] Represents the derivative instruments that hedge crude oil purchases based on grade basis differentials. Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] COMMITMENTS AND CONTINGENCIES (NOTE 18) Commitments and Contingencies Cash paid in connection with acquisitions, net of cash acquired (Note 7) Payments to acquire businesses Payments to Acquire Businesses and Interest in Affiliates Schedule of Differences Between Tax Expense based on the Statutory Federal Income Tax Rate and the Effective Income Tax Expense Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Termination Date Trading Arrangement Termination Date Offsetting Assets, Liabilities [Table] Offsetting Assets, Liabilities [Table] Disclosure of information about derivative and financial assets/ (liabilities) that are subject to offsetting, including enforceable master netting arrangements. Related Party Transaction [Table] Related Party Transaction [Table] Equity Method Investee That Owns Leased Storage Tanks Equity Method Investee That Owns Leased Storage Tanks [Member] Equity Method Investee That Owns Leased Storage Tanks Recurring Fair Value Measurements Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] 2026 Lessee, Operating Lease, Liability, to be Paid, Year Two Thereafter Contractual Obligation, to be Paid, after Year Five 2025 Long-Term Debt, Maturity, Year One Office property and equipment and rolling stock Office Property and Equipment and Rolling Stock [Member] This element represents long lived, depreciable assets used for the primary purpose of moving people and products from one place to another and represents furniture and fixtures, computer hardware and other assets related to field property. Derivatives Not Designated as a Hedge Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Schedule of Revenues Attributable to Geographic Areas Revenue from External Customers by Geographic Areas [Table Text Block] Gain on investments in unconsolidated entities, net (Note 7, Note 8) Gain on investments in unconsolidated entities, net (Note 7, Note 8) Gains (losses) on investments in unconsolidated entities, net Gains (losses) on investments in unconsolidated entities, net Amount of gain (loss) (i) from remeasurement to fair value of retained investment in former subsidiary and group of assets constituting business activity deconsolidated and derecognized and/or (ii) associated with the difference between the fair value and historical book value of assets contributed in exchange for an additional interest in an equity method investee. Obligation, processing capacity term (in years) Obligation, Processing Capacity Term Obligation, Processing Capacity Term Schedule of Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Debt Instrument [Axis] Debt Instrument [Axis] NET INCOME ATTRIBUTABLE TO PAA Net income attributable to PAA Net Income (Loss) Net Income (Loss) Attributable to Parent Trading Arrangement: Trading Arrangement [Axis] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Committed borrowing capacity Line of Credit Facility, Current Borrowing Capacity Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Entity File Number Entity File Number Consolidated Entities [Domain] Consolidated Entities [Domain] Noncontrolling Interests Noncontrolling Interest [Member] Income Statement [Abstract] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Series B Preferred Units Series B Preferred Units [Member] Series B preferred units representing perpetual limited partner interests in the entity that rank pari passu with Series A preferred units and are not redeemable at the opiton of the holders under any circumstances. Entity Address, Address Line Two Entity Address, Address Line Two Effect of translation adjustment Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations Name Forgone Recovery, Individual Name Operating lease, weighted-average lease term Operating Lease, Weighted Average Remaining Lease Term Transaction [Domain] Transaction [Domain] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Value of common units if exchanged for redemption of preferred units, as a percentage of weighted average price (as a percent) Preferred Unit Redemption, Percentage of Common Unit Average Price The percentage of the volume-weighted average price of the partnership's common units for a specified trading period, at which such common units are valued if given in exchange for the redemption of the preferred units. Other Other Noncash Income (Expense) Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Deferred tax liabilities: Components of Deferred Tax Liabilities [Abstract] Inventory by category Inventory Disclosure [Abstract] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Adjustment to Compensation: Adjustment to Compensation [Axis] Canadian Tax Authorities Canadian Tax Authorities [Member] Canadian Tax Authorities [Member] Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Reimbursement of Our General Partner and its Affiliates General Partner Expense [Policy Text Block] Disclosure of accounting policy for direct and indirect costs incurred on behalf of the reporting company by its general partner. Reclassification adjustments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Litigation Case [Domain] Litigation Case [Domain] Net gain/(loss) deferred in AOCI Accumulated Other Comprehensive Income (Loss), Net of Tax Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Related party note receivable Other Receivable, after Allowance for Credit Loss, Noncurrent Equity-indexed compensation expense Equity Indexed Compensation Expense Awards That Will Be Settled In Units Expense associated with equity-indexed compensation awards that will be settled in units. Related Party [Axis] Related and Nonrelated Parties [Axis] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Long-term inventory Long-term inventory subtotal, Carrying Value Inventory, Noncurrent Proceeds from sales of assets (Note 7) Proceeds from sales of assets Proceeds from Sale of Productive Assets Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment 2027 Other Commitment, to be Paid, Year Three Name Awards Close in Time to MNPI Disclosures, Individual Name Construction in progress Construction in Progress [Member] Revenues Revenue Benchmark [Member] Entity Filer Category Entity Filer Category Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Schedule of Lessor Future Revenues Maturity Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Loss Contingencies [Line Items] Loss Contingencies [Line Items] 2026 Operating and Finance Leases, Liability, to be Paid, Year Two Operating and Finance Leases, Liability, to be Paid, Year Two Liabilities settled Asset Retirement Obligation, Liabilities Settled Statistical Measurement [Domain] Statistical Measurement [Domain] Trade accounts receivable arising from revenues from contracts with customers Contract with Customer, Asset, after Allowance for Credit Loss, Current Schedule of Lease Costs and Other Lessee Information Lease, Cost [Table Text Block] Derivative assets and liabilities Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Partners' Capital Notes [Abstract] Partners' Capital Notes [Abstract] Other current liabilities Other Liabilities, Current Schedule of Open Derivative Contracts Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Revisions in estimated cash flows Asset Retirement Obligation, Revision of Estimate Total Operating and Finance Leases, Liability, to be Paid Operating and Finance Leases, Liability, to be Paid All Trading Arrangements All Trading Arrangements [Member] Crude Oil Purchases Contracts related to Crude Oil purchases [Member] Represents the derivative instruments utilized to hedge risk associated with crude oil purchases. Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Schedule of Computation of Basic and Diluted Net Income per Common Unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Derivatives and Risk Management Activities Derivative [Line Items] Preferred unit, credit percentage spread (as a percent) Preferred Unit, Distribution Percentage Credit Spread Adjustment Preferred Unit, Distribution Percentage Credit Spread Adjustment Income taxes, net of amounts refunded Income Taxes Paid, Net Other Commitments [Line Items] Other Commitments [Line Items] Distribution rate (as a percent) Preferred Units, Distribution Rate Preferred Units, Distribution Rate Cactus II Pipeline LLC transaction (Note 7) Partners' Capital Account, Acquisitions Investments in unconsolidated entities Investments in unconsolidated entities Equity Method Investments Pay vs Performance Disclosure [Line Items] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Derivative [Table] Derivative [Table] LONG-TERM DEBT Long-Term Debt, Unclassified [Abstract] Deferred income tax expense/(benefit): Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Senior Unsecured Revolving Credit Facility, Maturiting in August 2027 Senior Unsecured Revolving Credit Facility, Maturiting in August 2027 [Member] Senior Unsecured Revolving Credit Facility, Maturiting in August 2027 Schedule of Derivative Assets and Liabilities on Consolidated Balance Sheets on a Gross Basis Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Distributions (Note 11) Distributions paid Partners' Capital Account, Distributions Other Performance Measure, Amount Other Performance Measure, Amount Expected amortization, year three Finite-Lived Intangible Asset, Expected Amortization, Year Three Investment and acquisition capital expenditures Investment and Acquisition Capital Expenditures Investment and Acquisition Capital Expenditures 4.65% senior notes due October 2025 Senior Notes Due In October 2025 At 4.65 Percent [Member] Represents the 4.65 percent senior notes, which are due in October 2025. Leases Lessee, Operating Leases [Text Block] Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Operating lease cost Operating Lease, Cost Weighted average interest rate, short-term (as a percent) Short-Term Debt, Weighted Average Interest Rate, at Point in Time Total debt Debt and Lease Obligation LTIP awards available (in units) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Cash Flow Hedging Cash Flow Hedging [Member] Noncurrent assets Assets, Noncurrent Basic weighted average common units outstanding (in units) Weighted Average Limited Partnership Units Outstanding, Basic Liquidation preference (in dollars per unit) Preferred Stock, Liquidation Preference Per Share Entity Tax Identification Number Entity Tax Identification Number Maintenance capital expenditures Maintenance Capital Expenditures Capital expenditures for the replacement of partially or fully depreciated assets in order to maintain the operating and/or earnings capacity of the company's existing assets. Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Schedule of Senior Unsecured Notes Schedule of Long-Term Debt Instruments [Table Text Block] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Net broker receivable Effect of Collateral Netting (Liability) Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Canadian federal and provincial income tax Deferred Foreign Income Tax Expense (Benefit) Total AOCI Including Portion Attributable to Noncontrolling Interest [Member] Partner Capital Components [Domain] Partner Capital Components [Domain] 2028 Contractual Obligation, to be Paid, Year Four Schedule of Terms of Forward Starting Interest Rate Derivatives Schedule of Derivative Instruments [Table Text Block] Intersegment revenues elimination Intersegment Eliminations [Member] Plan Name [Axis] Plan Name [Axis] Thereafter Finance Lease, Liability, to be Paid, after Year Five Equity Components [Axis] Equity Components [Axis] Total Finance Lease, Liability, to be Paid Other current assets Other Assets, Current Limited Partners' Capital Account, Class [Domain] Limited Partners' Capital Account, Class [Domain] Trade Accounts Receivable and Other Receivables, Net Accounts Receivable [Policy Text Block] Red River Pipeline Company LLC Red River Red River Pipeline Company LLC [Member] Red River Pipeline Company LLC Pipeline and Termination Terminal Assets Pipeline And Termination Terminal Assets [Member] Pipeline And Termination Terminal Assets Net broker payable Effect of Collateral Netting (Asset) Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset Total costs and expenses Costs and Expenses Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Impaired Long-Lived Assets Held and Used by Type [Axis] Impaired Long-Lived Assets Held and Used by Type [Axis] Geographical [Axis] Geographical [Axis] Distribution Type [Domain] Distribution Type [Domain] 2029 Lessee, Operating Lease, Liability, to be Paid, Year Five Outstanding Common Units and Series A Preferred Units Combined Common Units And Series A Preferred Units [Member] Common Units And Series A Preferred Units Weighted Average Weighted Average [Member] Trade accounts receivable and other receivables, net Trade accounts receivable and other receivables, net Trade accounts receivable and other receivables, net from related parties Receivables, Net, Current Repurchase of common units (Note 11) Stock Repurchased During Period, Value 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] Noncash or Part Noncash Acquisition, Name [Domain] Noncash or Part Noncash Acquisition, Name [Domain] Remaining undiscounted liability Loss Contingency Accrual Lessee, Lease, Description [Line Items] Lessee, Lease, Assets and Liabilities [Line Items] Lessee, Lease, Description [Line Items] 2029 Operating and Finance Leases, Liability, to be Paid, Year Five Operating and Finance Leases, Liability, to be Paid, Year Five Consolidated Joint Venture Entities Consolidated Joint Venture Entities [Member] Consolidated Joint Venture Entities PAA Plains All American Pipeline, L.P. [Member] Plains All American Pipeline, L.P. Related Party Promissory Notes Related Party Promissory Notes [Member] Related Party Promissory Notes Purchases and Related Costs Cost of Goods and Service [Policy Text Block] Cash and cash equivalents and restricted cash, beginning of period Cash and cash equivalents and restricted cash, end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents NGL storage, terminal, fractionation and processing facilities NGL Storage, Terminal, Fractionation And Processing Facilities [Member] NGL Storage, Terminal, Fractionation And Processing Facilities 4.90% senior notes due February 2045 Senior Notes Due In February 2045 At 4.90 Percent [Member] Represents the 4.90 percent senior notes, which are due in February 2045. Canadian federal and provincial income and withholding taxes Current Foreign Tax Expense (Benefit) CURRENT ASSETS Assets, Current [Abstract] Consolidation Items [Axis] Consolidation Items [Axis] Amount of assessments received, including penalty and interest Income Tax Examination, Amount of Assessment Disputed Represents amount of assessment received related to an income tax examination which the reporting entity disputes. Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Product and Service [Domain] Product and Service [Domain] Short-term lease cost Short-Term Lease, Cost Number of interest rate derivatives Number of Interest Rate Derivatives Held Change in unrealized gains/(losses) included in earnings relating to Level 3 derivatives still held at the end of the period [Extensible Enumeration] Fair Value, Net Derivative Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Derivative Hedge Accounting Documentation Derivatives, Methods of Accounting, Hedge Documentation [Policy Text Block] Schedule of Net Broker Receivable (Payable) Schedule of Due to (from) Broker-Dealer and Clearing Organization [Table Text Block] Security Exchange Name Security Exchange Name Settled Litigation Settled Litigation [Member] State income tax Current State and Local Tax Expense (Benefit) Amount by which investments in unconsolidated entities exceeded our share of the underlying equity in the net assets Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Short-term notes and borrowings Short-Term Debt Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Total Other Commitment 4.30% senior notes due January 2043 Senior Notes Due In January 2043 At 4.30 Percent [Member] Represents the 4.30 percent senior notes, which are due in January 2043. Non-cash change in lease liabilities arising from obtaining new right of use assets or modifications, finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Derivative activities and inventory valuation adjustments Gains (Losses) From Derivative Activities and Inventory Valuation Adjustments Gains (losses) related to derivative instruments for which the underlying transaction does not occur in the current period and on derivatives that are related to investing activities, such as the purchase of linefill. Also includes the impact of corresponding inventory valuation adjustments, as applicable. Entity [Domain] Entity [Domain] Major customer percentage of total revenue (as a percent) Concentration Risk, Percentage Maximum aggregate borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Gains on sales of linefill Gain (Loss) on Sales of Linefill Gain (Loss) on Sales of Linefill OMOG JV LLC and Southern Delaware Gathering Assets OMOG JV LLC and Southern Delaware Gathering Assets [Member] Remaining interest in OMOG JV Holdings LLC and certain gathering assets in the Southern Delaware basin. Net Carrying Value Presentation on the Balance Sheet Derivative liability Derivative Liability 4.70% senior notes due June 2044 Senior Notes Due In June 2044 At 4.70 Percent [Member] Represents the 4.70 percent senior notes, which are due in June 2044. Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Quarterly distributions per unit (in dollars per unit) Preferred Units, Quarterly Distributions Per Unit The quarterly distributions per unit to which holders of the preferred units are entitled. Equity-indexed Compensation Compensation Related Costs, Policy [Policy Text Block] Schedule of Reconciliation of Changes in Fair Value of Derivatives Classified as Level 3 Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Butane Contracts Related to Subsequent Sale of Products Butane Contracts Related To Subsequent Sale Of Product [Member] Represents the derivative instruments for butane that hedges the subsequent sale of products derived from our natural gas processing and NGL fractionation activities. Net Carrying Value Presented on the Balance Sheet, Total Derivative Assets (Liabilities), at Fair Value, Net Number of days after end of quarter within which distributions must be paid to unitholders (in days) Number of Days Required for Distribution to Unitholders after End of Quarter The number of days after the end of the relevant quarter within which distributions of available cash must be paid to unitholders. Equity-indexed compensation expense Partners' Capital Account, Unit-Based Payment Arrangement, Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] 2029 Other Commitment, to be Paid, Year Five Entity Voluntary Filers Entity Voluntary Filers Eagle Ford Pipeline LLC Eagle Ford Pipeline LLC [Member] Eagle Ford Pipeline LLC, a crude oil pipeline company. Hedging Designation [Domain] Hedging Designation [Domain] Statement of Financial Position Location, Balance [Axis] Statement of Financial Position Location, Balance [Axis] Interest expense (net of capitalized interest of $9, $10 and $5, respectively) Interest expense, net Interest Expense, Nonoperating Interest Expense, Nonoperating Operating lease liabilities Lessee, Operating Lease, Description [Abstract] Deferred income tax (expense)/benefit Deferred income tax expense/(benefit) Total deferred income tax expense/(benefit) Deferred Income Tax Expense (Benefit) Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Plains All American 2021 Long-Term Incentive Plan Plains All American 2021 Long Term Incentive Plan [Member] Represents information related to the Plains All American 2021 Long-Term Incentive Plan. Short-term debt Short-term debt Debt, Current Recurring Fair Value Measures Fair Value, Recurring [Member] Geographic Data Revenues from External Customers and Long-Lived Assets [Line Items] Enbridge Enbridge [Member] Enbridge Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Rollforward of Level 3 Net Asset/(Liability) Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Thereafter Long-Term Debt, Maturity, after Year Five Acquisitions, Divestitures and Other Transactions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Western Midstream Partners, LP Western Midstream Partners, LP [Member] Western Midstream Partners, LP Organization Consolidation and Presentation of Financial Statements [Table] Organization Consolidation and Presentation of Financial Statements [Table] Schedule detailing information related to organization, basis of accounting, or basis of presentation, used to prepare the financial reports of the entity. Commercial paper notes Commercial Paper Commercial Paper [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Cash paid for purchases of linefill Cash Paid Related to Purchases of Linefill The cash outflow associated with the purchase of linefill. Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Document Annual Report Document Annual Report Excluding Line 901 Incident Excluding Line 901 Incident [Member] Excluding Line 901 Incident Acquisition of Additional Interest in Exchange for Contribution of Pipeline Assets Acquisition of Additional Interest in Exchange for Contribution of Pipeline Assets [Member] Acquisition of Additional Interest in Exchange for Contribution of Pipeline Assets 2027 Finance Lease, Liability, to be Paid, Year Three Derivative position notional amount (in terawatt hours) Derivative, Nonmonetary Notional Amount, Energy Measure Partners’ Capital Excluding Noncontrolling Interests Parent [Member] Canadian permanent differences Foreign Period Tax on Permanent Book Versus Tax Differences The permanent book versus tax differences in the current foreign income tax expense (benefit) and change in tax rate. Weighted-average maturity of long-term debt Long Term Debt Weighted Average Maturity This element represents the weighted-average maturity of senior notes and term loans outstanding. Amortization expense for finite-lived intangible assets Amortization of Intangible Assets Counterparty deficiencies, billed and collected Beginning balance Ending balance Contract with Customer, Liability Accounting Policies [Abstract] Accounting Policies [Abstract] REVENUES Revenues [Abstract] Distributions to preferred unitholders Preferred Stock Dividends, Income Statement Impact Loss Contingencies Commitments and Contingencies, Policy [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Current Fiscal Year End Date Current Fiscal Year End Date Less: Present value discount Lessee, Operating Lease, Liability, Undiscounted Excess Amount PEO Name PEO Name Depreciation and amortization of unconsolidated entities Depreciation And Amortization Of Unconsolidated Entities The reporting entity’s proportionate share of depreciation and amortization expense and gains or losses on significant asset sales of unconsolidated entities. Finance lease right-of-use assets, accumulated depreciation Finance Lease, Right-of-Use Asset, Accumulated Amortization All Award Types Award Type [Domain] Organization and basis of presentation Organization and Basis of Presentation [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. 2025 Lessor, Operating Lease, Payment to be Received, Year One Diluted net income per common unit (in dollars per unit) Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Diluted weighted average common units outstanding (in units) Weighted Average Limited Partnership Units Outstanding, Diluted Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Non-PEO NEO Non-PEO NEO [Member] Finite-lived intangible asset, useful life (in years) Finite-Lived Intangible Asset, Useful Life Impairment, long-lived asset, held-for-use, statement of income [extensible enumeration] Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration] Noncash or Part Noncash Acquisitions by Unique Description [Axis] Noncash or Part Noncash Acquisitions by Unique Description [Axis] Senior notes, net Senior notes, net of unamortized discounts and debt issuance costs Senior Notes, Noncurrent Finance lease liabilities, noncurrent Finance Lease, Liability, Noncurrent Hedging Relationship [Axis] Hedging Relationship [Axis] Field Operating Costs and General and Administrative Expenses Field Operating Costs and General and Administrative Expenses [Policy Text Block] Describes the entity's accounting policies for field operating costs, and general and administrative expenses. Related party notes payable Notes Payable Major Customers and Concentration of Credit Risk Concentration Risk Disclosure [Text Block] Recent Accounting Pronouncements, Disclosure Rules and Other Legislation New Accounting Pronouncements, Policy [Policy Text Block] Derivative instruments Deferred Tax Assets, Derivative Instruments Other Other Comprehensive Income, Other, Net of Tax Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] 2028 Finance Lease, Liability, to be Paid, Year Four Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Name Measure Name Entity Interactive Data Current Entity Interactive Data Current Estimated size of release to reach Pacific Ocean (in bbl) Estimated Size Of Release To Reach Body Of Water Estimated Size Of Release To Reach Body Of Water Ownership interest (as a percent) Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Canada CANADA Commodity Price Risk Hedging: Price Risk Derivatives [Abstract] Number of operating segments Number of Operating Segments Deferred tax assets: Components of Deferred Tax Assets [Abstract] Schedule of Derivative Financial Assets and Liabilities Accounted for at Fair Value on a Recurring Basis, by Level within the Fair Value Hierarchy Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] 5.15% senior notes due June 2042 Senior Notes Due In June 2042 At 5.15 Percent [Member] Represents the 5.15 percent senior notes, which are due in June 2042. Total deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Audit Information [Abstract] Audit Information [Abstract] Gain for the period included in earnings Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings Ownership interest (in units) Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest, Units Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest, Units Debt instrument, interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Lessor, operating lease, term of contract Lessor, Operating Lease, Term of Contract Other long-term debt Other Long Term Debt [Member] Other types of long-term debt not specifically identified. Cash paid for: Supplemental Cash Flow Information [Abstract] Lessor Lessor, Leases [Policy Text Block] Schedule of Impact of Derivative Activities Recognized in Earnings Derivative Instruments, Gain (Loss) [Table Text Block] Services revenues Services Service [Member] Dividend rate percentage (as a percent) Preferred Stock, Dividend Rate, Percentage Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Interest expense, capitalized interest Interest Costs Capitalized Auditor Firm ID Auditor Firm ID OPERATING INCOME Operating income Operating Income (Loss) Changes in Accumulated Other Comprehensive Income/(Loss) AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Total liabilities and partners’ capital Liabilities and Equity Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Hedging Designation [Axis] Hedging Designation [Axis] Derivatives and Risk Management Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] 2026 Finance Lease, Liability, to be Paid, Year Two Consolidated subsidiary, ownership interest held by the parent (as a percent) Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest Pipeline revenues supported by minimum volume commitments and capacity agreements Pipeline Revenues Supported By Minimum Volume Commitments And Capacity Agreements [Member] Pipeline Revenues Supported By Minimum Volume Commitments And Capacity Agreements Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Investments in related party notes (Note 16) Proceeds from the issuance of related party notes Payments to Fund Long-Term Loans to Related Parties Schedule of Aggregate Maturities of Long-term Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Non-cash change in lease liabilities arising from obtaining new right of use assets or modifications, operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Underlying Security Market Price Change Underlying Security Market Price Change, Percent Measurement Input Type [Axis] Measurement Input Type [Axis] Individual: Individual [Axis] Inventory Inventory subtotal, Carrying Value Inventory, Net Settlement of terminated interest rate hedging instruments (Note 12) Proceeds from settlement of interest rate hedging instruments Net Cash (Paid) Received for Terminated Hedging Instruments The net cash (paid) received for terminated hedging instruments. Product and Service [Axis] Product and Service [Axis] Rattler Rattler Midstream Operating LLC [Member] Rattler Midstream Operating LLC Property and Equipment Property, Plant and Equipment [Line Items] Statement [Line Items] Statement [Line Items] Measurement Input Type [Domain] Measurement Input Type [Domain] 2026 Contractual Obligation, to be Paid, Year Two Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Schedule of Activity for Preferred Units and Common Units Schedule of Stockholders Equity [Table Text Block] Schedule of Reconciliation of Segment Adjusted EBITDA to Net Income/(Loss) Attributable to PAA Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Identifiable assets acquired and liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Schedule of Components of Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Notes Due In September 2034 At 6.50 Percent Notes Due In September 2034 At 6.50 Percent [Member] Notes Due In September 2034 At 6.50 Percent Basic and Diluted Net Income per Common Unit Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax [Abstract] Consideration transferred Consideration transferred Business Combination, Consideration Transferred Term of derivative contract Derivative, Term of Contract OTHER ASSETS Other Assets, Noncurrent [Abstract] Trade accounts receivable and other Increase (Decrease) in Accounts and Other Receivables 2029 Contractual Obligation, to be Paid, Year Five Derivatives Derivatives, Policy [Policy Text Block] Net income allocated to common unitholders — Diluted Net income allocated to common unitholders — Diluted Net Income (Loss) Allocated to Common Unitholders, Diluted This element represents the net income (loss) allocated to common unitholders in the calculation of diluted net income per common unit after deducting amounts allocated to preferred unitholders and participating securities, as applicable, under the two class method. Aggregate total estimated costs Loss Contingency, Estimate of Possible Loss Unamortized discounts and debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Recoveries from insurance carriers Loss Contingency, Receivable, Proceeds Public Public Unit Holders [Member] Public Unit Holders [Member] Minimum Minimum [Member] Adoption Date Trading Arrangement Adoption Date Related Party Transactions [Abstract] Related Party Transactions [Abstract] Coverage ratio of debt-to-EBITDA, maximum Debt Instrument, Coverage Ratio Debt to EBITDA Maximum Represents the maximum ratio of debt to EBITDA (earnings before interest, taxes, depreciation and amortization) required to be maintained under the credit agreement. Derivative position notional amount (in barrels or Bcf) Derivative, Nonmonetary Notional Amount, Volume Other Other Adjustments Impacting Earnings, Basic Other adjustments impacting earnings allocated to common unitholders for the basic earnings (loss) per share or per unit calculation under the two-class method. Expenses associated with agreements Unrecorded Unconditional Purchase Obligation, Purchases Segments [Axis] Segments [Axis] 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] Schedule of LTIP Awards Authorized Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Other AOCI, Other, Including Portion Attributable to Noncontrolling Interest [Member] AOCI, Other, Including Portion Attributable to Noncontrolling Interest [Member] Inventory by category Inventory [Line Items] Derivative Instrument [Axis] Derivative Instrument [Axis] 2028 Operating and Finance Leases, Liability, to be Paid, Year Four Operating and Finance Leases, Liability, to be Paid, Year Four Long-term debt, before deducting unamortized discounts and debt issuance costs Long-Term Debt, Gross Exercise Price Award Exercise Price Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Arrangement Duration Trading Arrangement Duration Schedule of Net Deferred Gain/(Loss) Recognized in AOCI for Derivatives Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Leases Lessee, Finance Leases [Text Block] Other payments to acquire businesses Other Payments to Acquire Businesses Income Allocation Partnership Income Allocation [Policy Text Block] Disclosure of accounting policy relating to the allocation of net income to each type or class of partner. Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Pipeline systems Pipelines [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Periods for which letters of credit are issued (in days) Debt Instrument, Term Total finance lease liabilities Lease liabilities Finance Lease, Liability Expected amortization, year four Finite-Lived Intangible Asset, Expected Amortization, Year Four All Individuals All Individuals [Member] AAP Plains AAP L P [Member] Represents information pertaining to Plains, AAP L.P (AAP). Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Debt instrument fair value Debt Instrument, Fair Value Disclosure OMOG JV LLC (“OMOG”) OMOG JV LLC [Member] OMOG JV LLC Other income/(expense), net Other Nonoperating Income (Expense) Cash Distribution Cash Distribution [Member] Limited Partners' Capital Account by Class [Axis] Limited Partners' Capital Account by Class [Axis] (Gains)/losses on asset sales, asset impairments and other, net (Note 6, Note 7) (Gains)/losses on asset sales, asset impairments and other, net (Note 6, Note 7) Gains/(losses) on asset sales, asset impairments and other, net Gain (Loss) on Sale of Assets and Asset Impairment Charges Canadian withholding tax Expense for Withholding Taxes This element represents the amount of expense during the current period for withholding taxes. Other Contract with Customer, Liability, Other Contract with Customer, Liability, Other Field operating costs Field operating costs Operating Costs and Expenses Divestitures Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract] Other Commitments [Domain] Other Commitments [Domain] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Related Party [Domain] Related and Nonrelated Parties [Domain] Total long-term liabilities Noncurrent liabilities Liabilities, Noncurrent Assets Sold Primarily Consisted Of Land And Related Assets In Long Beach, California, As Well As Line 901 And The Sisquoc To Pentland Portion Of Line 903 Assets Sold Primarily Consisted Of Land And Related Assets In Long Beach, California, As Well As Line 901 And The Sisquoc To Pentland Portion Of Line 903 [Member] Assets Sold Primarily Consisted Of Land And Related Assets In Long Beach, California, As Well As Line 901 And The Sisquoc To Pentland Portion Of Line 903 Proceeds from the issuance of senior notes (Note 10) Proceeds from Issuance of Senior Long-Term Debt Other long-term liabilities and deferred credits Deferred Income Tax Liabilities, Net Series A preferred unit conversion ratio Preferred Units, Conversion Ratio Ratio applied to the conversion of preferred units into common units. Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Minimum Volume Commitments Minimum Volume Commitment Agreements [Member] Agreements that require counterparties to deliver, transport or throughput a minimum volume over an agreed upon period, some of which include make-up rights. Statement of Partners' Capital [Abstract] Statement of Partners' Capital [Abstract] Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Long-term inventory, Volumes (in barrels) Inventory, Volumes, Noncurrent The volume of noncurrent inventory as of the balance sheet date. Line 901 2015 Insurance Program Line 901 2015 Insurance Program [Member] Line 901 2015 Insurance Program Share Repurchase Program [Domain] Share Repurchase Program [Domain] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Plains All American GP LLC 2006 Long-Term Incentive Tracking Unit Plan Plains All American G P L L C Long Term Incentive Tracking Unit Plan [Member] Represents information related to the long-term incentive tracking unit plan adopted by Plains All American GP LLC in 2006 for non-officer employees. Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Non-cash impairment losses, long-lived assets Impairment, Long-Lived Asset, Held-for-Use Measure: Measure [Axis] Business acquisition amount, net to our interest in the Permian JV Business Combination Consideration Transferred Net To Ownership Interest Amount of consideration transferred reflected on a net basis, representing the entity's proportionate share based on its ownership percentage of the less than wholly owned consolidated subsidiary. Asset Class [Domain] Asset Class [Domain] Long-Lived Assets Held-for-sale by Asset Type [Axis] Long-Lived Asset, Held-for-Sale, Type [Axis] Entity Emerging Growth Company Entity Emerging Growth Company Income Tax, Examination [Table] Income Tax, Examination [Table] Distribution per common unit declared (in dollars per unit) Distribution Made to Limited Partner, Distributions Declared, Per Unit Settlements Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements 2029 Long-Term Debt, Maturity, Year Five Short Short [Member] Units outstanding (in units) Outstanding, beginning of period (in units) Outstanding, end of period (in units) Limited Partners' Capital Account, Units Outstanding Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Partners' Capital and Distributions [Table] Partners' Capital and Distributions [Table] Disclosure reflecting information pertaining to Partners' Capital and related distributions. Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Partners' capital Limited Partners' Capital Account 4.50% senior notes due December 2026 Senior Notes Due in December 2026 At 4.50 Percent [Member] Senior Notes Due in December 2026 At 4.50 Percent [Member] Finance lease right-of-use assets, net Finance Lease, Right-of-Use Asset, after Accumulated Amortization Equity Component [Domain] Equity Component [Domain] Partnership earnings not subject to Canadian tax Income Not Subject to Foreign Tax The earnings of the entity which are not subject to foreign enacted tax laws. Schedule of Contract with Customer, Counterparty Deficiencies Contract with Customer, Counterparty Deficiencies [Table Text Block] Contract with Customer, Counterparty Deficiencies Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Entity Shell Company Entity Shell Company Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Increase (Decrease) in Partners' Capital [Roll Forward] Activity for preferred units and common units Increase (Decrease) in Partners' Capital [Roll Forward] Redemption price as a percentage of issue price (as a percent) Preferred Unit Redemption, Redemption Price as a Percentage of Issue Price The price at which the preferred units may be redeemed, as a percentage of the issue price of the units. Letters of credit Standby Letters of Credit [Member] Statement [Table] Statement [Table] Fair Value, Measurement Frequency [Domain] Measurement Frequency [Domain] Counterparty Name [Axis] Counterparty Name [Axis] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Consolidation Items [Domain] Consolidation Items [Domain] Revenues: Segment Reporting Information, Revenue for Reportable Segment [Abstract] Interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Debt instrument, issued face value, percentage Senior Notes Public Offering Price Percentage of face value at which senior notes are sold. PROPERTY AND EQUIPMENT Property and equipment, gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Line 901 incident Significant Costs Related To Legal And Environmental Remediation Matters Significant Costs Related To Legal And Environmental Remediation Matters Payments to acquire productive assets Payments to Acquire Productive Assets Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Level 1 Fair Value, Inputs, Level 1 [Member] Schedule of Calculation of Basic and Diluted Net Income Per Common Unit [Table] Schedule of Calculation of Basic and Diluted Net Income Per Common Unit [Table] Schedule reflecting the calculation of basic and diluted net income per common unit. Currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Total current assets Current assets Assets, Current Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Senior Notes Senior Notes [Member] Total significant segment expenses Significant Segment Expenses Significant Segment Expenses Limited Partners Limited Partner [Member] Thereafter Lessor, Operating Lease, Payment to be Received, after Year Five 2027 Long-Term Debt, Maturity, Year Three Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Coverage limit under insurance program Insurance Coverage Limit Insurance Coverage Limit Amount of disputed assessments paid Income Tax Examination, Amount of Disputed Assessment Paid Represents the amount paid of the amount assessed related to an income tax examination which the reporting entity disputes. Other Commitments [Axis] Other Commitments [Axis] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Other agreements Other Intangible Assets [Member] Inventory (Price/Unit of measure) (in dollars per unit) Inventory, Weighted Average Price Per Unit, Current The weighted-average price per unit of current inventory. Costs reimbursed to general partner Payment for Administrative Fees Common equity repurchase program, repurchased amount Preferred Units Repurchased and Retired During Period, Value Stock Repurchased and Retired During Period, Value Income Taxes Income Tax Disclosure [Text Block] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Four Operating lease, lease income, statement of income [extensible enumeration] Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Valuation Technique, Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Other long-term liabilities and deferred credits Other Noncurrent Liabilities [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Debt Debt, Policy [Policy Text Block] Change in fair value of Preferred Distribution Rate Reset Option (Note 12) Gain/(loss) recognized Embedded Derivative, Gain (Loss) on Embedded Derivative, Net Operating lease, weighted-average discount rate Operating Lease, Weighted Average Discount Rate, Percent Discount rate, asset impairment analysis, cost of capital, theoretical market participant (as a percent) Impairment Analysis, Cost of Capital, Theoretical Market Participant Impairment Analysis, Cost of Capital, Theoretical Market Participant Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Partnership earnings subject to Canadian tax Income Subject to Foreign Tax The earnings of the entity which are subject to foreign enacted tax laws. Common Equity Repurchase Program Common Equity Repurchase Program [Member] Common Equity Repurchase Program Credit Facility [Axis] Credit Facility [Axis] Weighted-average discount rate: Leases, Weighted Average Discount Rate, Percent [Abstract] Leases, Weighted Average Discount Rate, Percent Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Entity Registrant Name Entity Registrant Name Interest Rate Swap Terminated Interest Rate Swap Terminated [Member] Interest Rate Swap Terminated Cash consideration, including working capital and other adjustments Payments to acquire businesses, gross Payments to Acquire Businesses, Gross Derivative Liabilities Offsetting Derivative Liabilities [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization Net income Gross Profit Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] LTIP awards outstanding including DERs (in units) Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Including Distribution Equivalent Rights Outstanding This element represents the portion of outstanding units, which include distribution equivalent rights that entitles the grantee to a cash payment equal to the cash distribution paid on an outstanding common unit. Intangible Asset, Net Intangible Assets Disclosure [Text Block] Condensate Contracts Related to Subsequent Sale of Products Condensate Contracts Related To Subsequent Sale Of Product [Member] Represents the derivative instruments for condensate that hedges the subsequent sale of products derived from our natural gas processing and NGL fractionation activities. Equity Method Investment, Nonconsolidated Investee Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] Fair Value as of Grant Date Award Grant Date Fair Value Customer Concentration Risk Customer Concentration Risk [Member] Wink to Webster Pipeline LLC (“W2W Pipeline”) Wink to Webster Pipeline LLC [Member] Wink to Webster Pipeline LLC [Member] Affiliated Entity Affiliated Entity [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Geographical [Domain] Geographical [Domain] Preferred units, outstanding repurchased rate Preferred Units, Percentage of Units Outstanding Repurchased Preferred Units, Percentage of Units Outstanding Repurchased Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Basis of Consolidation and Presentation Consolidation, Policy [Policy Text Block] Distributions paid to noncontrolling interests (Note 11) Payments of Ordinary Dividends, Noncontrolling Interest Restatement Determination Date: Restatement Determination Date [Axis] Arrangements and Non-arrangement Transactions [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Title of 12(b) Security Title of 12(b) Security Concentration Risk Type [Axis] Concentration Risk Type [Axis] Document Financial Statement Error Correction Document Financial Statement Error Correction [Flag] Derivative instruments Deferred Tax Liabilities, Derivatives Operating cash flows for finance leases Finance Lease, Interest Payment on Liability (Gains)/Losses On Asset Sales and Asset Impairments, Net (Gains)/Losses On Asset Sales And Asset Impairments, Net [Member] (Gains)/Losses On Asset Sales And Asset Impairments, Net [Member] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-Based Payment Arrangement [Abstract] Income Tax Authority, Name [Domain] Income Tax Authority, Name [Domain] Beginning balance Ending balance Asset Retirement Obligation Investments in unconsolidated entities (Note 8) Capital Contributions to Equity Method Investees Cash outflow for capital contributions subsequent to the initial purchase of interest in equity method investments. Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] SHORT-TERM DEBT Short-Term Debt [Abstract] Class C Shares Shares Class C [Member] Class C shares represent a non-economic limited partner interest that provides the holder the right to vote in elections of eligible directors together with the holders of Class A and Class B shares. Other Deferred Tax Assets, Other Finite-Lived Intangible Assets Finite-Lived Intangible Assets [Line Items] Total Inventory, Current and Noncurrent This element represents the aggregate of current and non-current inventory, including linefill and base gas. Class Action Lawsuit Claim of Damages Class Action Lawsuit Claim of Damages [Member] Class action lawsuit in which the plaintiffs claim two different classes of claimants were damaged by the release. Major Customers and Concentration of Credit Risk Concentration Risk [Line Items] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Maturities Long-Term Debt, Fiscal Year Maturity [Abstract] Total deferred tax liabilities Deferred Tax Liabilities, Gross Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Operating cash flows for operating leases Operating Lease, Payments Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Total Contractual Obligation Time Spread on Hedging Anticipated Crude Oil Lease Gathering Purchases Time Spread On Hedge Anticipated Crude Oil Lease Gathering Purchase Contracts [Member] Represents the derivative instruments utilized to hedge anticipated crude oil lease gathering purchases. Ownership [Domain] Ownership [Domain] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Terminalling, Storage and Other Terminalling, Storage and Other [Member] Terminalling, Storage and Other Preferred Distribution Rate Reset Option Embedded Derivative Financial Instruments [Member] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Total current liabilities Current liabilities Liabilities, Current Share Repurchase Program [Axis] Share Repurchase Program [Axis] Concentration of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Distributions on earnings from unconsolidated entities Proceeds from Equity Method Investment, Distribution Expected amortization, year one Finite-Lived Intangible Asset, Expected Amortization, Year One Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Total partners’ capital excluding noncontrolling interests Partners' Capital Long-Lived Assets Held-for-sale, Name [Domain] Long-Lived Assets Held-for-Sale, Name [Domain] Long-term inventory costing adjustments Long-Term Inventory Costing Adjustments Includes the impact of changes (resulting from fluctuations in market prices) in the average cost of crude oil and NGL inventory that is comprised of minimum working inventory requirements in third-party assets and other working inventory that is needed for the entity’s commercial operations which is considered necessary to conduct the entity’s operations and which the entity intends to carry for the foreseeable future, as well as writedowns of such inventory that result from price declines. Total lease liabilities Leases, Liability Leases, Liability Other segment items: Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Gross Position - Asset Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Investments in Unconsolidated Entities Equity Method Investments and Joint Ventures Disclosure [Text Block] Total revenues Total revenues Revenues Revenues from related parties Revenues Diamond Pipeline LLC Diamond Pipeline LLC [Member] Diamond Pipeline LLC, a crude oil pipeline company. Equity-Indexed Compensation Plans Share-Based Payment Arrangement [Text Block] Asset acquisition, consideration transferred Asset Acquisition, Consideration Transferred Entity Address, City or Town Entity Address, City or Town Lessee Lessee, Leases [Policy Text Block] 5.70% senior notes due September 2034 Senior Notes Due In September 2034 At 5.70 Percent [Member] Senior Notes Due In September 2034 At 5.70 Percent Partner Type [Axis] Partner Type [Axis] Change in unrealized gains/(losses) included in earnings relating to Level 3 derivatives still held at the end of the period Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss) Asset Retirement Obligations Asset Retirement Obligation [Policy Text Block] Gross Position - Liability Derivative Asset, Subject to Master Netting Arrangement, Liability Offset BridgeTex Pipeline Company, LLC (“BridgeTex”) BridgeTex Pipeline Company, LLC [Member] BridgeTex Pipeline Company, LLC [Member] Total lease right-of-use assets Leases, Right-Of-Use Asset Leases, Right-Of-Use Asset Equity-indexed compensation expense Share-Based Payment Arrangement, Expense Other Commitments [Table] Other Commitments [Table] Loss Contingencies [Table] Loss Contingencies [Table] Equity interest in acquiree, remeasurement gain Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Saddlehorn Pipeline Company, LLC (“Saddlehorn”) Saddlehorn Pipeline Company LLC [Member] Saddlehorn Pipeline Company LLC, a crude oil pipeline company. Schedule of Components of Intangible Assets, Net of Accumulated Amortization Schedule of Finite-Lived Intangible Assets [Table Text Block] Business Acquisition [Axis] Business Acquisition [Axis] Crude oil storage and terminal facilities Crude Oil Storage and Terminal Facilities [Member] Long lived depreciable assets used primarily for the storage and terminalling of crude oil and refined products. 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] Number of years by which maturity date of credit facility may be extended (in years) Line of Credit Facility Period for Which Term of Credit Facility May Be Extended Represents the period for which the credit facility may be extended by the entity, pursuant to the terms of the credit agreement. Foreign Foreign Tax Jurisdiction [Member] Lease assets Deferred Tax Liabilities, Leasing Arrangements Finance Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Derivative and financial assets and liabilities subject to collateral netting Offsetting Assets, Liabilities [Line Items] Revenues and Accounts Receivable Revenue from Contract with Customer [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Lease liabilities Deferred Tax Assets, Leasing Arrangements Amount of deferred tax asset attributable to taxable temporary differences from leasing arrangements. Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2.85% senior notes due January 2023 Senior Notes Due In January 2023 At 2.85 Percent [Member] Represents 2.85 percent senior notes, which are due in January 2023. Expected amortization, year five Finite-Lived Intangible Asset, Expected Amortization, Year Five Document Period End Date Document Period End Date Ironwood Midstream Energy Partners II, LLC Ironwood Midstream Energy Partners II, LLC [Member] Ironwood Midstream Energy Partners II, LLC Contributions from noncontrolling interests Proceeds from Noncontrolling Interests Finance lease liabilities, current Finance Lease, Liability, Current Trade Accounts Receivable And Other Receivables, Net Trade Accounts Receivable And Other Receivables, Net [Member] Trade Accounts Receivable And Other Receivables, Net Total Lessee, Operating Lease, Liability, to be Paid LTIP awards outstanding (in units) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Asset Class [Axis] Asset Class [Axis] Insider Trading Arrangements [Line Items] Schedule of Distributions to Noncontrolling Interests Distributions Made to Noncontrolling Interests [Table Text Block] Distributions Made to Noncontrolling Interests Schedule of Assets and Liabilities, Lessee Assets and Liabilities, Lessee [Table Text Block] Assets and Liabilities, Lessee Other current assets Other Current Assets [Member] 2027 Lessee, Operating Lease, Liability, to be Paid, Year Three Purchases and related costs from related parties Related Party Transaction, Purchases from Related Party Arbitration Proceedings Against Insurers, Binding Hearing in October Arbitration Proceedings Against Insurers, Binding Hearing in October [Member] Arbitration Proceedings Against Insurers, Binding Hearing in October Amounts recognized as revenue Contract with Customer, Liability, Revenue Recognized Segment Adjusted EBITDA Segment Adjusted EBITDA Revenues and equity earnings in unconsolidated entities less (a) purchases and related costs, (b) field operating costs and (c) segment general and administrative expenses, plus (d) our proportionate share of the depreciation and amortization expense of unconsolidated entities, further adjusted (e) for certain selected items including (i) gains and losses on derivative instruments that are related to underlying activities in another period (or the reversal of such adjustments from a prior period), gains and losses on derivatives that are related to investing activities (such as the purchase of linefill) and inventory valuation adjustments, as applicable, (ii) long-term inventory costing adjustments, (iii) charges for obligations that are expected to be settled with the issuance of equity instruments, (iv) amounts related to deficiencies associated with minimum volume commitments, net of the applicable amounts subsequently recognized into revenue and (v) other items that our Chief Operating Decision Maker believes are integral to understanding our core segment operating performance and (f) to exclude the portion of all preceding items that is attributable to noncontrolling interests Anticipated Net Sales of Crude Oil and NGL Inventory Anticipated Net Sales Of Inventory [Member] Represents the derivative instruments related to anticipated net sales of crude oil and NGL inventory. Document Transition Report Document Transition Report Assets held-for-sale Asset, Held-for-Sale, Not Part of Disposal Group Customer [Domain] Customer [Domain] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Entity Current Reporting Status Entity Current Reporting Status Noncontrolling interest, ownership (as a percent) Subsidiary, Ownership Percentage, Noncontrolling Owner Litigation Status [Domain] Litigation Status [Domain] Asset Acquisition [Domain] Asset Acquisition [Domain] Total Accrual for Environmental Loss Contingencies, Gross Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Thereafter Other Commitment, to be Paid, after Year Five Lessee, leases, renewal term (in years) Lessee, Leases, Renewal Term Lessee, Leases, Renewal Term Other Partners' Capital, Other Lessee, leases, term of contract (in years) Lessee, Leases, Term of Contract Lessee, Leases, Term of Contract Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Variation margin posted/(returned) Variation Margin Posted (Returned) Cash posted by (returned to) the reporting entity to (from) a broker or counterparty to comply with initial margin requirements. Noncontrolling Interests Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Executive Category: Executive Category [Axis] Transaction-related expenses Transaction-Related Expenses Expenses associated with joint venture transactions and acquisitions 3.65% senior notes due June 2022 Senior Notes Due In June 2022 At 3.65 Percent [Member] Represents the 3.65 percent senior notes, which are due in June 2022. Schedule of Components of Income Tax Expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Statement of Income Location, Balance [Domain] Statement of Income Location, Balance [Domain] Company Selected Measure Name Company Selected Measure Name