Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Balance Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated depreciation Payments to Acquire Businesses, Net of Cash Acquired, Total Cash paid in connection with acquisitions, net of cash acquired Payments to Acquire Productive Assets, Total Additions to property, equipment and other Amortization of Deferred Hedge Gains Noncash amortization of terminated interest rate hedging instruments Unrealized Gain (Loss) on Derivatives Deferred gains on settled hedges, net Condensed Consolidated Balance Sheets Cash and Cash Equivalents, at Carrying Value, Beginning Balance Cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Interest Paid, Net, Total Cash paid for interest, net of amounts capitalized Increase (Decrease) in Inventories, Total Inventory Increase (Decrease) in Operating Liabilities, Total Accounts payable and other liabilities Trade accounts receivable and other assets Changes in assets and liabilities, net of acquisitions: Increase (Decrease) in Due to Related Parties, Current, Total Due to related parties Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Concentration Risk Disclosure [Text Block] Concentration Risk Direct Operating Costs, Total Field operating costs Inventory Write-down Inventory valuation adjustment Current Income Tax Expense (Benefit), Total Current income tax expense CURRENT LIABILITIES Liabilities, Current, Total Total current liabilities Debt, Current, Total Short-term debt (Note 6) Debt Disclosure [Text Block] Debt Deferred Income Tax Expense (Benefit), Total Deferred income tax benefit Deferred income tax benefit Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivatives and Risk Management Activities Business Combination Disclosure [Text Block] Acquisitions Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Disposal Groups, Including Discontinued Operations Distribution Made to Member or Limited Partner, Cash Distribution Distributions paid to common unitholders (Note 8) Income (Loss) from Equity Method Investments, Total Equity earnings in unconsolidated entities Effect of Exchange Rate on Cash and Cash Equivalents, Total Effect of translation adjustment on cash Share-based Compensation Equity compensation charge Environmental Loss Contingency Disclosure [Text Block] Environmental Loss Contingency Equity Method Investments Investment in unconsolidated entities General and Administrative Expense, Total General and administrative expenses General Partners' Capital Account, Total General partner Condensed Consolidated Statements of Operations Income Tax Disclosure [Text Block] Income Taxes Interest Expense, Total Interest expense (net of capitalized interest of $4, $4, $9 and $14, respectively) Inventory, Net, Total Inventory Proceeds from Issuance of Senior Long-term Debt Proceeds from the issuance of senior notes (Note 6) Noncontrolling interest Liabilities and Partners' Capital, Total Total liabilities and partners' capital Limited Partners' Capital Account, Units Outstanding Common unitholders, units outstanding (in units) Limited Partners' Capital Account, Total Common unitholders (136,135,988 and 122,911,645 units outstanding, respectively) Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Noncontrolling interest CASH FLOWS FROM FINANCING ACTIVITIES Net Cash Provided by (Used in) Financing Activities, Total Net cash provided by financing activities CASH FLOWS FROM INVESTING ACTIVITIES Net Cash Provided by (Used in) Investing Activities, Total Net cash used in investing activities CASH FLOWS FROM OPERATING ACTIVITIES Net Cash Provided by (Used in) Operating Activities, Total Net cash provided by operating activities Cash and Cash Equivalents, Period Increase (Decrease), Total Net increase in cash and cash equivalents Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Recent Accounting Pronouncements OTHER INCOME/(EXPENSE) Inventory, Noncurrent, Total Long-term inventory LONG-TERM LIABILITIES Liabilities, Noncurrent, Total Total long-term liabilities Operating Income (Loss), Total OPERATING INCOME REVENUES Revenues, Total Total revenues Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Organization and Basis of Presentation Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Currency translation adjustment Other Comprehensive Income (Loss), Net of Tax, Total Other comprehensive income/(loss) Total period activity Other comprehensive income Other Comprehensive Income, Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax Reclassification adjustments Other Comprehensive Income, Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Deferred gains/(losses) on settled hedges, net Other Assets, Current Other current assets Proceeds from (Payments for) Other Financing Activities Other financing activities PARTNERS' CAPITAL Partners' Capital Account, Acquisitions Issuance of common units in connection with the PNGS Acquisition Partners' Capital Account, Distributions Distributions Increase (Decrease) in Partners' Capital, Total Increase (decrease) in partners' capital Partners' Capital Account, Sale of Units, Total Issuance of common units Partners' Capital Account, Units, Period Increase (Decrease), Total Partners' Capital Account, Units, Period Increase (Decrease) Partners' Capital Account, Units, Beginning Balance Balance (in units) Balance (in units) Partners' Capital Notes Disclosure [Text Block] Partners' Capital and Distributions Partners' Capital, Beginning Balance Total partners' capital excluding noncontrolling interest Balance at beginning of period Balance at end of period Proceeds from Divestiture of Interest in Consolidated Subsidiaries Cash received for sale of noncontrolling interest in a subsidiary Cash received for sale of noncontrolling interest in a subsidiary (Note 7) Property, Plant and Equipment, Gross, Beginning Balance PROPERTY AND EQUIPMENT Property, Plant and Equipment, Net, Beginning Balance Property and equipment, net Payments to Acquire Interest in Subsidiaries and Affiliates, Total Investment in unconsolidated entities Payments to Acquire Property, Plant, and Equipment Receivables, Net, Current, Total Trade accounts receivable and other receivables, net Related Party Transactions Disclosure [Text Block] Related Party Transactions Segment Reporting Disclosure [Text Block] Operating Segments Senior Notes, Noncurrent Senior notes, net of unamortized net discount of $15 and $6, respectively Significant Accounting Policies [Text Block] Significant Accounting Policies Condensed Consolidated Statements of Cash Flows Condensed Consolidated Statements of Comprehensive Income Condensed Consoldiated Statement of Partners' Capital Income Taxes Paid Cash paid for income taxes CURRENT ASSETS Assets, Current, Total Total current assets General Partner Common Units PROPERTY AND EQUIPMENT Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Trade Accounts Receivable Assets, Total Total assets General Partners' Capital Account, Distribution Amount Distributions paid to general partner (Note 8) Other Liabilities, Current, Total Other current liabilities Other long-term liabilities Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Equity Compensation Plans Statement - Table Income (Loss) from Equity Method Investments, Net of Dividends or Distributions, Total Equity earnings in unconsolidated entities, net of distributions ASSETS Statement - Line Items Capital Unit, Common Units Quarterly Financial Information [Text Block] Quarterly Financial Information Other Long-term Debt, Noncurrent Long-term debt under credit facilities and other Other Assets, Noncurrent, Total Other, net Interest Costs Incurred Interest Costs, Capitalized During Period Interest expense, capitalized Foreign Currency Transaction Gain (Loss), Unrealized Gain on foreign currency revaluation Gain (Loss) on Sale of Investments, Total Gain on sale of investment assets Cumulative Effect of Change in Accounting Principle Presented on Income Statement, Net of Tax (Increase) Decrease in Accounts and Other Receivables Translation Adjustments Derivative Instruments Net Income (Loss) Allocated to General Partners GENERAL PARTNER Net Income (Loss) Allocated to Limited Partners LIMITED PARTNERS Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Total BASIC NET INCOME PER LIMITED PARTNER UNIT (in dollars per unit) Weighted Average Limited Partnership Units Outstanding, Basic BASIC WEIGHTED AVERAGE UNITS OUTSTANDING (in units) Goodwill, Beginning Balance Goodwill Schedule of Condensed Financial Statements [Text Block] Supplemental Condensed Consolidating Financial Information COSTS AND EXPENSES Costs and Expenses, Total Total costs and expenses Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total NET INCOME Net Income Net income Depreciation, Depletion and Amortization, Total Depreciation and amortization Increase (Decrease) in Partners' Capital Statement - Partner Capital Components Comprehensive Income, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total Comprehensive income Other comprehensive income Partners' Capital Account, Units, Sale of Units, Total Issuance of common units (in units) Net Income (Loss), Per Outstanding Limited Partnership Unit, Diluted DILUTED NET INCOME PER LIMITED PARTNER UNIT (in dollars per unit) Debt Instrument, Unamortized Discount (Premium), Net Senior notes, unamortized net discount Accounts Payable and Accrued Liabilities, Current Accounts payable and accrued liabilities Accumulated Other Comprehensive Income Total period activity Partner Capital Components Noncontrolling Interest Partners' Capital Excluding Noncontrolling Interest Commitments and Contingencies COMMITMENTS AND CONTINGENCIES (NOTE 12)