Limited Partners' Capital Account by Class [Axis] Limited Partners' Capital Account by Class [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Other current assets Other Current Assets [Member] Commodity derivatives Commodity Contract [Member] Crude oil Crude Oil [Member] Award Timing Predetermined Award Timing Predetermined [Flag] Weighted average interest rate, long-term (as a percent) Long-Term Debt, Weighted Average Interest Rate, at Point in Time Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Entity File Number Entity File Number Other long-term assets, net Other Noncurrent Assets [Member] Debt Debt, Policy [Policy Text Block] Equity earnings in unconsolidated entities Equity earnings in unconsolidated entities Income (Loss) from Equity Method Investments Tabular List, Table Tabular List [Table Text Block] Crude Oil Purchases Contracts Related To Crude Oil Purchases [Member] Represents the derivative instruments utilized to hedge risk associated with crude oil purchases. Recent Accounting Pronouncements, Disclosure Rules and Other Legislation New Accounting Pronouncements, Policy [Policy Text Block] Net income/(loss) allocated to common unitholders — basic: continuing operations Net income from continuing operations allocated to common unitholders - basic Net Income (Loss) From Continuing Operations Allocated To Common Unitholders, Basic This element represents the net income (loss) from continuing operations 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. Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Trade accounts receivable arising from revenues from contracts with customers Contract with Customer, Asset, after Allowance for Credit Loss, Current Schedule of Disposal Groups, Including Discontinued Operations Disposal Groups, Including Discontinued Operations [Table Text Block] Inventory by category Energy Related Inventory [Abstract] Related party notes receivable Other Receivable, after Allowance for Credit Loss, Noncurrent Position [Axis] Position [Axis] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Adjustment to Compensation: Adjustment to Compensation [Axis] Related Party Transactions Related Party Transactions Disclosure [Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Commercial Paper Commercial Paper Program Commercial Paper [Member] Revenues and Accounts Receivable Revenue from Contract with Customer [Text Block] Organization Consolidation and Presentation of Financial Statements [Line Items] Organization Consolidation and Presentation of Financial Statements [Line Items] Organization Consolidation and Presentation of Financial Statements [Line Items] Partners' Capital and Distributions [Line Items] Partners' Capital and Distributions [Line Items] Partners' Capital and Distributions [Line Items] Debt instrument, divestiture, mandatory prepayment duration Debt Instrument, Divestiture, Mandatory Prepayment Duration Debt Instrument, Divestiture, Mandatory Prepayment Duration Other comprehensive income/(loss) Total period activity Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Schedule of Segment Financial Data Schedule of Segment Reporting Information, by Segment [Table Text Block] Short-term notes and borrowings Short-Term Debt Inventory by category Inventory Disclosure [Abstract] Net broker receivable/(payable) Effect of Collateral Netting Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Current income tax expense from continuing operations Current income tax expense (benefit) Current Income Tax Expense (Benefit) Adjustment to Compensation, Amount Adjustment to Compensation Amount Affiliated Entity Affiliated Entity [Member] Unamortized discounts and debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Investment and acquisition capital expenditures Investment and Acquisition Capital Expenditures Investment and Acquisition Capital Expenditures Schedule of Linefill and Long-Term Inventory Schedule of Inventory, Noncurrent [Table Text Block] Basis of Consolidation and Presentation Consolidation, Policy [Policy Text Block] Schedule of Net Broker Receivable Schedule of Due to (from) Broker-Dealer and Clearing Organization [Table Text Block] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Proceeds from sales of assets Proceeds from Sale of Productive Assets Impact of derivative activities recognized in earnings Derivative Instruments, Gain (Loss) [Line Items] Insider Trading Policies and Procedures [Line Items] Revenues: Segment Reporting Information, Revenue for Reportable Segment [Abstract] Hedging Designation [Domain] Hedging Designation [Domain] Terminalling, storage and other agreement revenues Terminalling, Storage And Other Agreement Revenues [Member] Terminalling , Storage And Other Agreement Revenues [Member] 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. CURRENT ASSETS Assets, Current [Abstract] Total liabilities and partners’ capital Liabilities and Equity Noncontrolling Interest Noncontrolling Interest [Line Items] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Long-term liabilities: Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent [Abstract] Senior notes, net Senior notes, net Senior Notes, Noncurrent NGL Business NGL Business [Member] NGL Business LIABILITIES AND PARTNERS’ CAPITAL Liabilities and Equity [Abstract] Linefill Disposal Group, Including Discontinued Operation, Linefill, Noncurrent Disposal Group, Including Discontinued Operation, Linefill, Noncurrent Cover page. Cover [Abstract] Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Derivative Assets Offsetting Derivative Assets [Abstract] Permian JV Plains Oryx Permian Basin LLC [Member] Plains Oryx Permian Basin LLC LONG-TERM DEBT Long-Term Debt, Unclassified [Abstract] Net income attributable to noncontrolling interests Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Intangible assets, net Finite-Lived Intangible Assets, Net 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. Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Red River Red River Pipeline Company LLC [Member] Red River Pipeline Company LLC [Member] INCOME FROM CONTINUING OPERATIONS, NET OF TAX Income from continuing operations, net of tax Income from continuing operations, net of tax Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Trade accounts payable Disposal Group, Including Discontinued Operation, Accounts Payable, Current Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] 4.65% Senior notes due October 2025 Senior Notes Due In October 2025 At 4.65 Percent [Member] Senior Notes Due In October 2025 At 4.65 Percent Accumulated depreciation Disposal Group, Including Discontinued Operation, Accumulated Depreciation Disposal Group, Including Discontinued Operation, Accumulated Depreciation Derivative position notional amount (in barrels) Derivative, Nonmonetary Notional Amount, Volume Cash paid in connection with acquisitions, net of cash acquired Payments to Acquire Businesses and Interest in Affiliates INCOME FROM CONTINUING OPERATIONS BEFORE TAX Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Long-term liabilities of discontinued operations (Note 2) Total long-term liabilities of discontinued operations Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent Entity Shell Company Entity Shell Company Other long-term liabilities and deferred credits Other Liabilities, Noncurrent Proceeds from issuance of debt Proceeds from Issuance of Debt Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Operating Segments Operating Segments [Member] Number of days after end of quarter within which distributions must be paid to unitholders Number Of Days Required For Distribution To Our 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. Unrealized loss on hedges Interest rate derivatives, net Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Award Timing MNPI Considered Award Timing MNPI Considered [Flag] SHORT-TERM DEBT Short-Term Debt [Abstract] Comprehensive income attributable to PAA Comprehensive Income (Loss), Net of Tax, Attributable to Parent Disposal Group Name [Domain] Disposal Group Name [Domain] Name Measure Name Net income from continuing operations attributable to PAA Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Consolidated Joint Venture Entities Consolidated Joint Venture Entities [Member] Consolidated Joint Venture Entities Linefill, volumes (in barrels) Inventory, Volumes Linefill The volume of linefill inventory as of the balance sheet date. PAA Plains All American Pipeline, L.P. [Member] Plains All American Pipeline, L.P. Document Fiscal Period Focus Document Fiscal Period Focus Related Party Promissory Notes Related Party Promissory Notes [Member] Related Party Promissory Notes Partner Capital Components [Domain] Partner Capital Components [Domain] Current income tax expense Discontinued Operation, Current Income Tax Expense (Benefit) Discontinued Operation, Current Income Tax Expense (Benefit) Derivative assets and liabilities Derivatives, Fair Value [Line Items] Award Timing Method Award Timing Method [Text Block] Award Type Award Type [Axis] Long-term debt Long-Term Debt Current liabilities: Disposal Group, Including Discontinued Operation, Liabilities, Current [Abstract] Legal Entity [Axis] Legal Entity [Axis] Total assets Assets CASH FLOWS FROM INVESTING ACTIVITIES Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Trading Symbol Trading Symbol Contract With Customer, Asset And Liability [Table] Contract With Customer, Asset And Liability [Table] Contract With Customer, Asset And Liability [Table] Total partners’ capital excluding noncontrolling interests Partners' Capital Entity Address, City or Town Entity Address, City or Town Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] Distribution per common unit (usd per unit) Distribution Made to Limited Partner, Distributions Paid, Per Unit Total other segment items Total other segment items Segment Reporting, Other Segment Item, Amount Effect of translation adjustment - continuing operations Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Inventory, Linefill and Long-term Inventory Inventory Disclosure [Text Block] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Statement of Income Location, Balance [Domain] Statement of Income Location, Balance [Domain] Distributions Distributions Distributions paid Partners' Capital Account, Distributions Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] General Partner General Partner [Member] Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Estimated size of release (in barrels) Estimated Size Of Release Represents the estimated size of the pipeline release. 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] Debt issuance costs Debt Issuance Costs, Net Level 2 Fair Value, Inputs, Level 2 [Member] Gains recognized Net gain/(loss) from commodity derivative activity Derivative, Gain (Loss) on Derivative, Net 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. Investments in unconsolidated entities Equity Method Investments Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Other Other Debt [Member] Other types of debt not specifically identified. PEO PEO [Member] Current liabilities Current Liabilities [Member] Primary financial statement caption encompassing current liabilities. Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] 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 (i) investing activities, such as the purchase of linefill, and (ii) purchases of long-term inventory. Also includes the impact of corresponding inventory valuation adjustments, as applicable. Proceeds from the issuance of related party notes Proceeds from Related Party Debt Proceeds from the issuance of senior notes (Note 6) Proceeds from Issuance of Senior Long-Term Debt 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] Current assets: Disposal Group, Including Discontinued Operation, Assets, Current [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Investments in related party notes Payments to Fund Long-Term Loans to Related Parties Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Cash and cash equivalents and restricted cash, beginning of period Cash and cash equivalents and restricted cash, end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Income tax expense from continuing operations Income Tax Expense (Benefit) Net Carrying Value Presented on the Balance Sheet Derivative Asset Distribution per unit (usd per unit) Preferred Stock, Dividends, Per Share, Cash Paid Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Product and Service [Domain] Product and Service [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Product sales revenues Revenues [Member] Revenues Effect of Collateral Netting Offsetting [Abstract] Average exchange rate (cad per usd) Derivative, Average Forward Exchange Rate Other Partners' Capital, Other Partners’ Capital Excluding Noncontrolling Interests Parent [Member] NET INCOME Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Held-for-Sale Discontinued Operations, Held-for-Sale [Member] Deferred income tax expense Discontinued Operation, Deferred Income Tax Expense (Benefit) Discontinued Operation, Deferred Income Tax Expense (Benefit) Notional amount of derivatives Derivative, Notional Amount Discontinued Operations and Disposal Groups [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Accumulated depreciation Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Interest expense, capitalized interest Interest Costs Capitalized Cash Distribution Cash Distribution [Member] Distributions to preferred unitholders Preferred Stock Dividends, Income Statement Impact Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Cash used in investing activities - discontinued operations Cash Provided by (Used in) Investing Activity, Discontinued Operation Schedule of Contracts with Customers, Change in Asset and Liability Balance Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] General and administrative expenses Segment general and administrative expenses General and Administrative Expense Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Field operating costs Field Operating Costs [Member] Costs related to site and field operations during the period. Related Party Transactions [Abstract] Related Party Transactions [Abstract] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Aggregate total estimated costs Loss Contingency, Estimate of Possible Loss PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] 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. Cash paid for purchases of linefill Cash Paid Related To Purchases Of Linefill The cash outflow associated with the purchase of linefill. Gross Position - Liability Derivative Liability, Subject to Master Netting Arrangement, before Offset Excluding Line 901 Incident Excluding Line 901 Incident [Member] Excluding Line 901 Incident Total costs and expenses Disposal Group, Including Discontinued Operation, Costs And Expenses Disposal Group, Including Discontinued Operation, Costs And Expenses Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Other long-term debt, net Other Other Long-Term Debt, Noncurrent Product sales revenues Product sales Sales Product [Member] Number of reportable segments Number of Reportable Segments Cash paid for: Supplemental Cash Flow Information [Abstract] Other Performance Measure, Amount Other Performance Measure, Amount Cactus II Cactus II Pipeline LLC [Member] Cactus II Pipeline LLC Inventory Inventory [Line Items] Short-term debt Total short-term debt Debt, Current Entity Address, State or Province Entity Address, State or Province Long-term assets of discontinued operations (Note 2) Total long-term assets of discontinued operations Disposal Group, Including Discontinued Operation, Assets, Noncurrent Related Party [Domain] Related and Nonrelated Parties [Domain] Diluted weighted average common units outstanding (units) Weighted Average Limited Partnership Units Outstanding, Diluted Total current liabilities Liabilities, Current Other current liabilities Other Current Liabilities [Member] PARTNERS’ CAPITAL Partners' Capital, Including Portion Attributable to Noncontrolling Interest [Abstract] Inventory [Axis] Inventory [Axis] 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. Derivative Instrument [Axis] Derivative Instrument [Axis] Individual: Individual [Axis] PROPERTY AND EQUIPMENT Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Repurchase of Series A preferred units Payments for Repurchase of Preferred Stock and Preference Stock Other current assets Other Assets, Current Entity [Domain] Entity [Domain] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation NET INCOME/(LOSS) PER COMMON UNIT (NOTE 4): Earnings Per Unit [Abstract] Remaining performance obligations, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 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] Interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activity Contributions from noncontrolling interests Proceeds from Noncontrolling Interests Document Fiscal Year Focus Document Fiscal Year Focus Long-term operating lease right-of-use assets, net Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Noncontrolling interests in subsidiaries (as a percent) Subsidiary, Ownership Percentage, Noncontrolling Owner Environmental Remediation Contingency [Axis] Environmental Remediation Contingency [Axis] Entity Interactive Data Current Entity Interactive Data Current Exchange Traded Exchange Traded [Member] Contributions from noncontrolling interests Partners' Capital Account, Contributions CASH FLOWS FROM OPERATING ACTIVITIES Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Linefill (price/unit of measure) (usd per barrel) Inventory, Weighted Average Price Per Unit, Linefill Inventory, Weighted Average Price Per Unit, Linefill Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Segment Information Segment Reporting Disclosure [Text Block] Recurring Fair Value Measurements Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Derivatives Not Designated as a Hedge Not Designated as Hedging Instrument [Member] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Total debt Debt and Lease Obligation Schedule of Distributions Distributions Made to Limited Partner, by Distribution [Table Text Block] Ownership [Domain] Ownership [Domain] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Weighted Average Weighted Average [Member] Self-insured retention Loss Contingency, Self-Insured Retention Amount retained by the entity before insurance begins to provide coverage. Depreciation and amortization Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization Other long-term assets, net Other Assets, Noncurrent Related party interest payable Interest Payable, Current Entity Central Index Key Entity Central Index Key PEO Name PEO Name Other Other Long Term Debt [Member] Other types of long-term debt not specifically identified. Increase (Decrease) in Partners' Capital Activity for preferred units and common units Increase (Decrease) in Partners' Capital [Roll Forward] Total revenues Total revenues Revenues from related parties Revenues 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] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Schedule of Activity for Preferred Units and Common Units Schedule of Stockholders Equity [Table Text Block] Purchases and related costs Disposal Group, Including Discontinued Operation, Purchases And Related Costs Disposal Group, Including Discontinued Operation, Purchases And Related Costs Partner Capital Components [Axis] Partner Capital Components [Axis] Arrangement Duration Trading Arrangement Duration Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Net income/(loss) allocated to common unitholders — diluted: discontinued operations Net income/(loss) from discontinued operations allocated to common unitholders - diluted Net Income (Loss) From Discontinued Operations Allocated To Common Unitholders, Diluted Net Income (Loss) From Discontinued Operations Allocated To Common Unitholders, Diluted Segments [Axis] Segments [Axis] 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] Linefill Linefill subtotal, carrying value Linefill Crude oil or NGL linefill in pipelines, tanks and caverns. Linefill is intended for long-term use. Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Limited Partners Limited Partner [Member] Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Arrangements and Non-arrangement Transactions [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Inventory, Current [Table] Inventory, Current [Table] Partners' capital Limited Partners' Capital Account Repurchase and cancellation (in units) Repurchase of Series A preferred units (in units) Stock Repurchased and Retired During Period, Shares Long Long [Member] Series A Preferred Units 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. Cash consideration Disposal Group, Including Discontinued Operation, Consideration Transportation Transportation Revenue [Member] Transportation Revenue Losses on asset sales and other, net Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax ASSETS Assets [Abstract] Credit Facility [Axis] Credit Facility [Axis] 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 long-term capacity agreements Long-term inventory Long-term inventory subtotal, carrying value Inventory, Noncurrent Underlying Security Market Price Change Underlying Security Market Price Change, Percent Crude oil basis spread position Crude Oil Grade Basis Position [Member] Represents the derivative instruments that hedge crude oil purchases based on grade basis differentials. Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] Debt Instrument [Axis] Debt Instrument [Axis] Credit Facility [Domain] Credit Facility [Domain] 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] Entity Address, Address Line One Entity Address, Address Line One Long-term operating lease liabilities Disposal Group, Including Discontinued Operation, Operating Lease Liabilities, Noncurrent Disposal Group, Including Discontinued Operation, Operating Lease Liabilities, Noncurrent Entity Address, Address Line Two Entity Address, Address Line Two Estimated undiscounted reserve for environmental liabilities, short-term [Extensible Enumeration] Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration] Debt instrument, interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Other segment items: Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Ownership [Axis] Ownership [Axis] Schedule of Debt Instruments [Table] Schedule of Debt Instruments [Table] A table or schedule providing information pertaining to short-term and long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. Derivatives and Risk Management Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Gross Position - Asset Derivative Asset, Subject to Master Netting Arrangement, before Offset Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] 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. Basic weighted average common units outstanding (units) Weighted Average Limited Partnership Units Outstanding, Basic Total costs and expenses Costs and Expenses Related Party Transaction [Line Items] Related Party Transaction [Line Items] Public Public Unit Holders [Member] Public Unit Holders [Member] Document Quarterly Report Document Quarterly Report Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Related party interest receivable Interest Receivable, Current Counterparty Name [Domain] Counterparty Name [Domain] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Operating segments number Number of Operating Segments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] 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. Other Other Inventory [Member] Category of inventory not separately disclosed. Schedule of Debt Schedule of Debt [Table Text Block] Related Party [Axis] Related and Nonrelated Parties [Axis] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Cash provided by operating activities - continuing operations Cash Provided by (Used in) Operating Activity, Continuing Operation Services revenues Services Service [Member] Other current liabilities Disposal Group, Including Discontinued Operation, Other Liabilities, Current Other long-term liabilities and deferred credits Other Noncurrent Liabilities [Member] Type of Arrangement and Non-arrangement Transactions [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Restatement Determination Date: Restatement Determination Date [Axis] Non-PEO NEO Non-PEO NEO [Member] Outstanding letters of credit Letters of credit Letters of Credit Outstanding, Amount Position [Domain] Position [Domain] Cash used in investing activities - continuing operations Cash Provided by (Used in) Investing Activity, Continuing Operation Common Units Common Units [Member] Common units representing limited partner interests in the entity. Other financing activities Proceeds from (Payment for) Other Financing Activity Related party interest income Interest Income, Other Schedule of Debt Instruments [Line Items] Schedule of Debt Instruments [Line Items] Schedule of Debt Instruments [Line Items] Name Trading Arrangement, Individual Name All Award Types Award Type [Domain] Long-term assets: Disposal Group, Including Discontinued Operation, Assets, Noncurrent [Abstract] Equity Awards Adjustments Equity Awards Adjustments [Member] Term Loan Term Loan [Member] Term Loan Other Other Noncash Income (Expense) Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Substantially all trade accounts receivable, net, maximum age of balances past their invoice date Trade Accounts Receivable Net Disclosure Of Maximum Age Of Balances Past Invoice Date The maximum number of days past their invoice date for substantially all of the trade accounts receivable. Disaggregation of Revenue Disaggregation of Revenue [Line Items] Compensation Amount Outstanding Recovery Compensation Amount Debt instrument face value Debt Instrument, Face Amount Inventory, volumes (in barrels) Inventory, Volumes Current The volume of current inventory as of the balance sheet date. Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Field operating costs Field operating costs Operating Costs and Expenses Foreign currency derivatives Foreign Exchange Contract [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Amounts recognized as revenue Contract with Customer, Liability, Revenue Recognized AAP Plains AAP L P [Member] Represents information pertaining to Plains, AAP L.P (AAP). MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] 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. Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Distribution Type [Axis] Distribution Type [Axis] Changes in assets and liabilities, net of acquisitions Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital Deferred tax liabilities Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities REVENUES Revenues [Abstract] Inventory [Domain] Inventory [Domain] Total long-term debt Long-Term Debt and Lease Obligation Other current assets Disposal Group, Including Discontinued Operation, Other Assets, Current Total AOCI Including Portion Attributable to Noncontrolling Interest [Member] Basic and Diluted Net Income/(Loss) per Common Unit Net Income (Loss), Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax [Abstract] Environmental Remediation Contingency [Domain] Environmental Remediation Contingency [Domain] Segments [Domain] Segments [Domain] 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] 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. Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Basic and Diluted Net Income Per Common Unit [Line Items] 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. Schedule of Remaining Performance Obligations Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Reclassification adjustments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] NGL segment revenues from contracts with customers NGL Natural Gas Liquids Segment [Member] Natural Gas Liquids Segment Inventory Inventory subtotal, carrying value Inventory, Net Estimated undiscounted reserve for environmental liabilities, short-term Accrued Environmental Loss Contingencies, Current Line of Credit and Commercial Paper Line Of Credit And Commercial Paper [Member] Line Of Credit And Commercial Paper Net Income Per Common Unit Earnings Per Share, Policy [Policy Text Block] Company Selected Measure Name Company Selected Measure Name Revenue Recognition Revenue [Policy Text Block] Gross Position - Asset Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Senior Notes Senior Notes [Member] Debt Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Amount accrued to distributions payable Dividends Payable All Executive Categories All Executive Categories [Member] 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. Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Net Carrying Value Presented on the Balance Sheet, Total Derivative Assets (Liabilities), at Fair Value, Net Long-term inventory, volumes (in barrels) Inventory, Volumes, Noncurrent The volume of noncurrent inventory as of the balance sheet date. Total revenues Disposal Group, Including Discontinued Operation, Revenue OTHER ASSETS Other Assets, Noncurrent [Abstract] Weighted average interest rate, short-term (as a percent) Short-Term Debt, Weighted Average Interest Rate, at Point in Time Segment Information Segment Reporting, Policy [Policy Text Block] COMMITMENTS AND CONTINGENCIES (NOTE 10) Commitments and Contingencies Limited Partners' Capital Account, Class [Domain] Limited Partners' Capital Account, Class [Domain] Aggregate cost to clean-up and remediate Loss Contingency, Clean-Up And Remediate Aggregate Cost Loss Contingency, Clean-Up And Remediate Aggregate Cost Line 901 2015 Insurance Program Line 901 2015 Insurance Program [Member] Line 901 2015 Insurance Program Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Derivative [Table] Derivative [Table] Other Contract with Customer, Liability, Other Contract with Customer, Liability, Other Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Small Business Entity Entity Small Business Units outstanding (units) Outstanding, beginning of period (in units) Outstanding, end of period (in units) Limited Partners' Capital Account, Units Outstanding Noncontrolling Interests Noncontrolling Interest [Member] Costs related to the line 901 incident Loss Contingency, Loss in Period Document Transition Report Document Transition Report Noncontrolling Interest [Table] Noncontrolling Interest [Table] Crude Oil segment revenues from contracts with customers Crude Oil Crude Oil Segment [Member] Crude Oil Segment Net borrowings under commercial paper program (Note 6) Proceeds from (Repayments of) Commercial Paper Underlying Securities Award Underlying Securities Amount 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. Statement of Partners' Capital [Abstract] Statement of Partners' Capital [Abstract] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Partners' Capital and Distributions [Table] Partners' Capital and Distributions [Table] Disclosure reflecting information pertaining to Partners' Capital and related distributions. Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Issuances of common units under equity-indexed compensation plans (in units) Partners' Capital Account, Unit-Based Payment Arrangement, Number of Units Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Gains on asset sales and other, net Gains on asset sales and other, net Gains on asset sales and other, net Gain (Loss) on Sale of Assets and Asset Impairment Charges Hedging Designation [Axis] Hedging Designation [Axis] Debt instrument fair value Debt Instrument, Fair Value Disclosure Scenario [Axis] Scenario [Axis] Schedule of Contract with Customer, Counterparty Deficiencies Contract With Customer, Counterparty Deficiencies [Table Text Block] Contract With Customer, Counterparty Deficiencies Document Type Document Type Net Income Per Common Unit Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Minimum Volume Commitments Contract With Customer, Asset And Liability [Line Items] [Line Items] for Contract With Customer, Asset And Liability [Table] Other long-term assets, net Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Loss Contingencies [Table] Loss Contingencies [Table] Other trade accounts receivables and other receivables Accounts and Other Receivables, Net, Current Product and Service [Axis] Product and Service [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Related party notes payable Notes Payable Revenue from contracts with customers Revenues from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Additions to property, equipment and other Payments to Acquire Property, Plant, and Equipment General and administrative expenses Disposal Group, Including Discontinued Operation, General and Administrative Expense Name Forgone Recovery, Individual Name Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] 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] Cash provided by operating activities - discontinued operations Cash Provided by (Used in) Operating Activity, Discontinued Operation Disposal Group Classification [Axis] Disposal Group Classification [Axis] Remaining undiscounted liability Loss Contingency Accrual Basic net income per common unit (usd per unit) Basic net income per common unit (usd per unit) Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax Depreciation and amortization Disposal Group, Including Discontinued Operation, Depreciation and Amortization Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Disposal Group Name [Axis] Disposal Group Name [Axis] Schedule of Calculation of Basic and Diluted Net Income/(Loss) 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. Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total significant segment expenses Significant Segment Expenses Significant Segment Expenses Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Income from discontinued operations before tax Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Schedule of Reconciliation of Segment Adjusted EBITDA to Net Income Attributable to PAA Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] CURRENT LIABILITIES Liabilities, Current [Abstract] Contract Liabilities Change In Contract With Customer, Liability [Roll Forward] Change In Contract With Customer, Liability [Roll Forward] Transaction Type [Axis] Transaction Type [Axis] Schedule of Impact of Derivative Activities Recognized in Earnings Derivative Instruments, Gain (Loss) [Table Text Block] Long-term inventory (price/unit of measure (usd per barrel) Inventory, Weighted Average Price Per Unit, Noncurrent Inventory, Weighted Average Price Per Unit, Noncurrent Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Coverage limit under insurance program Insurance Coverage Limit Insurance Coverage Limit Level 1 Fair Value, Inputs, Level 1 [Member] Long-term operating lease right-of-use assets, net Disposal Group, Including Discontinued Operation, Operating Lease Right of Use Assets, Net Noncurrent Disposal Group, Including Discontinued Operation, Operating Lease Right of Use Assets, Net Noncurrent Net income/(loss) allocated to common unitholders— diluted: continuing operations Net income from continuing operations allocated to common unitholders - diluted Net Income (Loss) From Continuing Operations Allocated To Common Unitholders, Diluted This element represents the net income (loss) from continuing operations 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. Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Inventory (price/unit of measure) (usd per barrel) Inventory, Weighted Average Price Per Unit, Current Inventory, Weighted Average Price Per Unit, Current 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. Forecast Forecast [Member] Amounts allocated to participating securities Participating Securities, Distributed and Undistributed Earnings (Loss), Basic Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Title of 12(b) Security Title of 12(b) Security Total partners’ capital Beginning balance Ending balance Partners' Capital, Including Portion Attributable to Noncontrolling Interest Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Estimated undiscounted reserve for environmental liabilities, long-term Accrued Environmental Loss Contingencies, Noncurrent Plains Canada Liquid Pipelines ULC Plains Canada Liquid Pipelines ULC [Member] Plains Canada Liquid Pipelines ULC Earnings Per Share [Abstract] Earnings Per Share [Abstract] Consolidation Items [Domain] Consolidation Items [Domain] INCOME/(LOSS) FROM DISCONTINUED OPERATIONS, NET OF TAX (NOTE 2) (Income)/loss from discontinued operations, net of tax Income/(loss) from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Recoveries from insurance carriers Loss Contingency, Receivable, Proceeds 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. Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Partners' Capital Notes [Abstract] Partners' Capital Notes [Abstract] Clean-up and remediation activities Loss Contingency, Clean-Up And Remediation Activities The amount of clean-up and remediation activities pertaining to the specified contingency that was incurred in the period. Distributions paid to unitholders (Note 7) Distribution Made to Limited Partner, Cash Distributions Paid Income taxes, net of amounts refunded Income Taxes Paid, Net Award Timing Disclosures [Line Items] NGL Natural Gas Liquids (NGL) [Member] Schedule of Inventory Schedule of Inventory, Current [Table Text Block] Current assets of discontinued operations (Note 2) Total current assets of discontinued operations Disposal Group, Including Discontinued Operation, Assets, Current Long-term debt Long-Term Debt, Gross Property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Partner Type [Axis] Partner Type [Axis] Property and equipment, net Disposal Group, Including Discontinued Operation, Property, Plant And Equipment, Net Disposal Group, Including Discontinued Operation, Property, Plant And Equipment, Net NET INCOME ATTRIBUTABLE TO PAA Net Income (Loss) Attributable to Parent Intersegment revenues elimination Intersegment Elimination Intersegment Eliminations [Member] Expiration Date Trading Arrangement Expiration Date LONG-TERM LIABILITIES Liabilities, Noncurrent [Abstract] Partners Capital and Distribution [Line Items] Partners Capital and Distribution Partners Capital and Distribution [Line Items] No definition available. Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Other revenues Revenue Not from Contract with Customer Adoption Date Trading Arrangement Adoption Date Total Inventory, Current and Noncurrent This element represents the aggregate of current and non-current inventory, including linefill. Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Entity Current Reporting Status Entity Current Reporting Status Derivatives and Risk Management Activities Derivative [Line Items] 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. Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] CASH FLOWS FROM FINANCING ACTIVITIES Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Segment amounts attributable to noncontrolling interests Segment Amounts Attributable To Noncontrolling Interests Segment Amounts Attributable To Noncontrolling Interests OPERATING INCOME Operating Income (Loss) Consolidated Entities [Domain] Consolidated Entities [Domain] Line of credit Line of Credit [Member] Transaction [Domain] Transaction [Domain] 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. Translation Adjustments Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Repayments of debt Repayments of Debt Diluted net income per common unit: discontinuing operations (usd per unit) Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Terminalling, Storage and Other Terminalling, Storage And Other [Member] Terminalling, Storage And Other Noncontrolling interests Partners' Capital Attributable to Noncontrolling Interest Ownership interest (as a percent) Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Current Fiscal Year End Date Current Fiscal Year End Date 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] Current liabilities of discontinued operations (Note 2) Total current liabilities of discontinued operations Disposal Group, Including Discontinued Operation, Liabilities, Current Other income, net Other Nonoperating Income (Expense) Statement [Table] Statement [Table] 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. Net income/(loss) allocated to common unitholders — basic: discontinued operations Net income/(loss) from discontinued operations allocated to common unitholders - basic Net Income (Loss) From Discontinued Operations Allocated To Common Unitholders, Basic Net Income (Loss) From Discontinued Operations Allocated To Common Unitholders, Basic Derivative liability Net Carrying Value Presented on the Balance Sheet Derivative Liability Reconciliation of net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Deferred income tax (expense)/benefit from continuing operations Deferred income tax expense/(benefit) Deferred Income Tax Expense (Benefit) Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Interest rate derivatives Interest Rate Contract [Member] Field operating costs Disposal Group, Including Discontinued Operation, Operating Expense 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. Schedule of Environmental Liabilities Schedule of Environmental Loss Contingencies by Site [Table Text Block] 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 Counterparty deficiencies, billed and collected Beginning balance Ending balance Contract with Customer, Liability Distributions on earnings from unconsolidated entities Proceeds from Equity Method Investment, Distribution 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] Organization and Basis of Consolidation and Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Antidilutive securities excluded from computation of net income per common unit (units) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Ownership interest (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 All Adjustments to Compensation All Adjustments to Compensation [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Amendment Flag Amendment Flag Gain on investments in unconsolidated entities, net Gain 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. Termination Date Trading Arrangement Termination Date Net cash provided by/(used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Basic net income/(loss) per common unit: continuing operations (usd per unit) Income (Loss) from Continuing Operations, Per Outstanding Limited Partnership Unit, Basic, Net of Tax Average fixed exchange rate (cad per usd) Derivative, Average Fixed Exchange Rate Derivative, Average Fixed Exchange Rate Other long-term liabilities and deferred credits Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent Fair value, asset Total net derivative asset/(liability) Derivative, Fair Value, Net Purchases and related costs Purchases and related costs Cost of Product and Service Sold Disposal Group Classification [Domain] Disposal Group Classification [Domain] Schedule of Computation of Basic and Diluted Net Income per Common Unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Other AOCI, Other, Including Portion Attributable To Noncontrolling Interest [Member] AOCI, Other, Including Portion Attributable to Noncontrolling Interest [Member] Segment Reporting [Abstract] Segment Reporting [Abstract] Line 48 Incident Line 48 Incident [Member] Represents information pertaining to the crude oil release in Carson, California. Offsetting Assets, Liabilities [Line Items] Offsetting Assets, Liabilities [Line Items] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Diluted net income/(loss) per common unit: continuing operations (usd per unit) Income (Loss) from Continuing Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount OTHER INCOME/(EXPENSE) Nonoperating Income (Expense) [Abstract] Entity Tax Identification Number Entity Tax Identification Number Scenario [Domain] Scenario [Domain] COSTS AND EXPENSES Significant segment expenses: Costs and Expenses [Abstract] 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. Derivative Liabilities Offsetting Derivative Liabilities [Abstract] Trade accounts payable Trade accounts payable to related parties Accounts Payable, Trade, Current Derivative Instruments Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Short Short [Member] Consolidated Entities [Axis] Consolidated Entities [Axis] Estimated undiscounted reserve for environmental liabilities Accrual for Environmental Loss Contingencies, Gross Basic net income per common unit: discontinuing operations (usd per unit) Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Basic Trade accounts receivable and other receivables, net Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Schedule of Distributions to Noncontrolling Interests Distributions Made To Noncontrolling Interests [Table Text Block] Distributions Made To Noncontrolling Interests Interest expense (net of capitalized interest of $2 and $2, respectively) Related party interest expense Interest expense, net Interest Expense, Nonoperating Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Deferred (gain) loss on accumulated other comprehensive income (loss), net of tax Deferred Gain (Loss) On Accumulated Other Comprehensive Income (Loss), Net Of Tax Deferred Gain (Loss) On Accumulated Other Comprehensive Income (Loss), Net Of Tax Diluted net income per common unit (usd per unit) Diluted net income per common unit (usd per unit) Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Segment Adjusted EBITDA 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 either related to investing activities (such as the purchase of linefill) or purchases of long-term inventory, 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. Loss Contingencies [Line Items] Loss Contingencies [Line Items] Gross Position - Liability Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Anticipated Net Sales of Crude Oil and NGL Inventory Anticipated Net Sales Of Inventory [Member] Represents the derivative instruments in a net short position related to anticipated net sales of crude oil and NGL inventory. Currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Insider Trading Arrangements [Line Items] Repurchase of Series A preferred units Partners' Capital Account, Redemptions Security Exchange Name Security Exchange Name Purchases and related costs from related parties Related Party Transaction, Purchases from Related Party Total long-term liabilities Liabilities, Noncurrent Long-term inventory Disposal Group, Including Discontinued Operation, Inventory, Noncurrent Distributions paid to noncontrolling interests (Note 7) Payments of Ordinary Dividends, Noncontrolling Interest Partners' Capital and Distributions Partners' Capital Notes Disclosure [Text Block] Cash Distribution Dividends, Preferred Stock Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] 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. Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Other current liabilities Other Liabilities, Current Estimated undiscounted reserve for environmental liabilities, long-term [Extensible Enumeration] Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration] Statement [Line Items] Statement [Line Items] 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. Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Consolidation Items [Axis] Consolidation Items [Axis] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Inventory Disposal Group, Including Discontinued Operation, Inventory, Current Transaction-related expenses Transaction-Related Expenses Expenses associated with joint venture transactions and acquisitions Counterparty Name [Axis] Counterparty Name [Axis] Distribution Type [Domain] Distribution Type [Domain] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Impact from repurchase of Series A preferred units Preferred Stock Redemption Premium Net increase/(decrease) in cash and cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation