Guarantee of Securities of Subsidiaries [Abstract] Guarantee of Securities of Subsidiaries [Abstract] Condensed Consolidating Statements of Income and Comprehensive Income [Table Text Block] Condensed Consolidating Statements of Income and Comprehensive Income [Table Text Block] Condensed Consolidating Statements of Income and Comprehensive Income [Table Text Block] Condensed Balance Sheet [Table Text Block] Condensed Balance Sheet [Table Text Block] Condensed Cash Flow Statement [Table Text Block] Condensed Cash Flow Statement [Table Text Block] Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Maximum [Member] Maximum [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Kinder Morgan, Inc. [Member] Kinder Morgan, Inc. [Member] Kinder Morgan, Inc. [Member] Hiland Partners Holdings LLC [Member] Hiland Partners Holding LLC [Member] Hiland Partners Holding LLC [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Senior unsecured revolving credit facility [Member] Senior unsecured revolving credit facility [Member] Senior unsecured revolving credit facility [Member] Commercial Paper [Member] Commercial Paper [Member] Bridge Loan [Member] Bridge Loan [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Credit facility due November 26, 2019(b) Long-term Line of Credit Debt Instrument, Term Debt Instrument, Term Line of Credit Facility, Current Borrowing Capacity Line of Credit Facility, Current Borrowing Capacity Commercial paper borrowings(b) Commercial Paper Commercial Paper, Current Borrowing Capacity Commercial Paper, Current Borrowing Capacity Commercial Paper, Current Borrowing Capacity Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Line of Credit Facility, Remaining Borrowing Capacity Line of Credit Facility, Remaining Borrowing Capacity Line of Credit Facility, Maximum Amount Outstanding During Period Line of Credit Facility, Maximum Amount Outstanding During Period Derivative Instruments and Hedging Activities Disclosure [Abstract] Risk Management Derivative Instruments and Hedging Activities Disclosure [Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] KMI Acquisition of Hiland Partners Holding LLC [Member] KMI Acquisition of Hiland Partners Holding LLC [Member] KMI Acquisition of Hiland Partners Holding LLC [Member] Hiland Hiland Partners, LP [Member] Hiland Partners, LP [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Hiland Partners Holdings LLC, senior notes, 5.50% and 7.25%, due 2020 and 2022(d) KMI Senior Notes, 5.50% and 7.25%, due 2020 and 2022 [Member] KMI Senior Notes, 5.50% and 7.25%, due 2020 and 2022 Debt Instrument [Line Items] Debt Instrument [Line Items] Senior Notes Senior Notes Debt Instrument, Fair Value Disclosure Debt Instrument, Fair Value Disclosure Repayments of Debt Repayments of Debt Currency [Axis] Currency [Axis] All Currencies [Domain] All Currencies [Domain] Euro Member Countries, Euro Euro Member Countries, Euro Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Financial Guarantee [Member] Financial Guarantee [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Kinder Morgan Energy Partners, L.P. [Member] Kinder Morgan Energy Partners, L.P. [Member] Kinder Morgan Energy Partners, L.P. [Member] TGP [Member] TGP [Member] TGP [Member] EPNG [Member] EPNG [Member] EPNG [Member] Copano Energy, L.L.C. [Member] Copano Energy, L.L.C. [Member] Copano Energy, L.L.C. [Member] Colorado Interstate Gas Company, L.L.C. [Member] Colorado Interstate Gas Company, L.L.C. [Member] Colorado Interstate Gas Company, L.L.C. [Member] SNG [Member] SNG [Member] SNG [Member] Kinder Morgan Finance Company, LLC [Member] Kinder Morgan Finance Company, LLC [Member] Kinder Morgan Finance Company, LLC [Member] EPC Building LLC [Member] EPC Building LLC [Member] EPC Building LLC [Member] Capital Trust I [Member] Capital Trust I [Member] Capital Trust I [Member] Kinder Morgan G.P., Inc. [Member] Kinder Morgan G.P., Inc. [Member] Kinder Morgan G.P., Inc. [Member] KMI AND KMP [Member] KMI, KMP and EPB [Member] KMI, KMP and EPB [Member] Kinder Morgan, Inc and Subsidiaries [Member] Kinder Morgan, Inc and Subsidiaries [Member] Kinder Morgan, Inc and Subsidiaries [Member] Senior Notes [Member] Senior Notes [Member] Senior notes, 1.50% through 8.25%, due 2015 through 2098(a) KMI Senior Notes,1.50% through 8.25%, due 2015 through 2098 [Member] [Member] KMI Senior Notes, 1.50% through 8.25%, due 2015 through 2098 Senior notes, 2.65% through 9.00%, due 2015 through 2044 KMP Senior notes, 2.65% through 9.00%, due 2014 through 2044 [Member] KMP Senior notes, 2.65% through 9.00%, due 2014 through 2044 TGP senior notes, 7.00% through 8.375%, due 2016 through 2037 KMP Senior notes, 7.00% through 8.375%, due 2016 through 2037 [Member] KMP Senior notes, 7.00% through 8.375%, due 2016 through 2037 [Member] EPNG senior notes, 5.95% through 8.625%, due 2017 through 2032 KMP 5.95% through 8.625%, due 2017 through 2032 [Member] [Member] KMP 5.95% through 8.625%, due 2017 through 2032 [Member] Copano senior notes, 7.125% due April 1, 2021 KMP 7.125% Senior Notes due April 1, 2021 (Copano) [Member] KMP 7.125% Senior Notes due April 1, 2021 (Copano) [Member] CIG, senior notes, 5.95% through 6.85%, due 2015 through 2037 EPB Notes, 5.95% through 6.85%, due 2015 through 2037 [Member] EPB Notes, 5.95% through 6.85%, due 2015 through 2037 [Member] SNG notes, 4.40% through 8.00%, due 2017 through 2032 EPB Notes, 4.40% through 8.00%, due 2017 through 2032 [Member] EPB Notes, 4.40% through 8.00%, due 2017 through 2032 [Member] Kinder Morgan Finance Company, LLC, senior notes, 5.70% through 6.40%, due 2016 through 2036(b) KMI 5.70% through 6.40% series, due 2016 through 2036 [Member] KMI 5.70% through 6.40% series, due 2016 through 2036 [Member] EPC Building, LLC, promissory note, 3.967%, due 2015 through 2035 KMI Promissory note 3.967%, due 2014 through 2035 [Member] [Member] KMI Promissory note 3.967%, due 2014 through 2035 Preferred securities, 4.75%, due March 31, 2028 KMI EP Capital Trust I 4.75%, due 2028 [Member] KMI EP Capital Trust I 4.75%, due 2028 [Member] KMGP, $1,000 Liquidation Value Series A Fixed-to-Floating Rate Term Cumulative Preferred Stock(n) KMI $1,000 Liquidation Value Series A Fixed-to-Floating Rate Term Cumulative Preferred Stock [Member] KMI $1,000 Liquidation Value Series A Fixed-to-Floating Rate Term Cumulative Preferred Stock(f) [Member] Other miscellaneous debt Other Miscellaneous Subsidiary Debt [Member] Other Miscellaneous Subsidiary Debt [Member] KMI Credit Facility [Member] KMI Credit Facility [Member] KMI Credit Facility [Member] Credit facility due November 26, 2019(b) Commercial paper borrowings(b) Notes Payable Notes Payable KMGP, $1,000 Liquidation Value Series A Fixed-to-Floating Rate Term Cumulative Preferred Stock Preferred interest in general partner of KMP Preferred interest in general partner of KMP Total debt – KMI and Subsidiaries Long-term Debt Less: Current portion of debt(d) Debt, Current Total long-term debt – KMI and Subsidiaries(e) Long-term Debt, Excluding Current Maturities Foreign Currency Exchange Rate, Translation Foreign Currency Exchange Rate, Translation Translation Adjustment Functional to Reporting Currency, Increase (Decrease), Gross of Tax Translation Adjustment Functional to Reporting Currency, Increase (Decrease), Gross of Tax Debt, Weighted Average Interest Rate Debt, Weighted Average Interest Rate Indemnified by parent of subsidiary debt Indemnified by parent of subsidiary debt Indemnified by parent of subsidiary debt Debt fair value adjustments Debt Fair Value Adjustments Fair value adjustments to debt as of the balance sheet date including fair value purchase accounting adjustments to debt and fair value of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet as well as unamortized portions of proceeds received from early termination of interest rate swap agreements. Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Liquidation value of note Preferred Interest of General Partner, Par or Stated Value Per Share Preferred Interest of General Partner, Par or Stated Value Per Share Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Fair Value Hedging [Member] Fair Value Hedging [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Natural gas and crude derivative contracts Energy Related Derivative [Member] Interest rate swap agreements Interest Rate Swap [Member] Cross-currency swap agreements Currency Swap [Member] Power derivative contracts Power Derivative Contract [Member] Power Derivative Contract [Member] Commodity Contract [Member] Commodity Contract [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Derivatives designated as hedging contracts Designated as Hedging Instrument [Member] Derivatives not designated as hedging contracts Not Designated as Hedging Instrument [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Fair value of derivative contracts/(Other current liabilities) Fair Value of Derivatives Contracts [Member] Fair Value of Derivatives Contracts [Member] Fair value of derivative contracts/(Other current liabilities) Other Current Liabilities [Member] Deferred charges and other assets/(Other long-term liabilities and deferred credits) Deferred Charges and Other Assets [Member] Deferred Charges and Other Assets [Member] Deferred charges and other assets/(Other long-term liabilities and deferred credits) Other Long-Term Liabilities and Deferred Credits [Member] Other Long-Term Liabilities and Deferred Credits Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Derivative Asset, Fair Value, Net Derivative Asset, Fair Value, Amount Not Offset Against Collateral Derivative Liability, Fair Value, Net Derivative Liability, Fair Value, Amount Not Offset Against Collateral Statement of Comprehensive Income [Abstract] Total Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax [Abstract] Change in fair value of hedge derivatives (net of tax (expense) benefit of $(60), $(37), $(25) and $4, respectively) Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Reclassification of change in fair value of derivatives to net income (net of tax benefit (expense) of $37, $1, $111 and $(8), respectively) Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Foreign currency translation adjustments (net of tax benefit of $45, $23, $98 and $24, respectively) Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Benefit plan adjustments (net of tax expense of $-, $(1), $(4) and $-, respectively) Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Total other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive loss (income) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to KMI Comprehensive Income (Loss), Net of Tax, Attributable to Parent New Accounting Pronouncements and Changes in Accounting Principles [Abstract] Recent Accounting Pronouncements Description of New Accounting Pronouncements Not yet Adopted [Text Block] Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Carrying value Reported Value Measurement [Member] Estimated fair value Estimate of Fair Value Measurement [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Statement of Cash Flows [Abstract] Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Transaction Type [Axis] Transaction Type [Axis] Transaction [Domain] Transaction [Domain] Cash collateral held(b) Contract and Over the Counter [Member] Contract and Over the Counter [Member] Netting status [Axis] Netting status [Axis] Netting status [Axis] Netting status [Domain] Netting status [Domain] [Domain] for Netting status [Axis] Contracts available for netting Not Offset on Balance Sheet [Member] Not Offset on Balance Sheet [Member] Underlying Asset Class [Axis] Underlying Asset Class [Axis] Underlying Asset Class [Domain] Underlying Asset Class [Domain] Energy Related Derivative [Member] Interest Rate Swap [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Balance sheet asset fair value measurements by level Derivative Asset Contracts available for netting Net Asset Adjustment for Financial Instruments subject to Master Netting Agreement but Presented Gross Net Asset Adjustment for Financial Instruments subject to Master Netting Agreement but Presented Gross Cash collateral held(b) Derivative, Collateral, Obligation to Return Cash Net amount Balance sheet liability fair value measurements by level Derivative Liability Contracts available for netting Net Liability Adjustment for Financial Instruments Subject to Master Netting Agreement but Presented Gross Net Liability Adjustment for Financial Instruments Subject to Master Netting Agreement but Presented Gross Collateral posted(c) Derivative, Collateral, Right to Reclaim Cash Net amount Fair Value, Assets Liabilites Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Liabilites Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Liabilites Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Derivatives-net asset (liability) Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Included in earnings Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings Included in other comprehensive loss Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss) Settlements Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements Derivatives-net asset (liability) The amount of total gains or (losses) for the period included in earnings attributable to the change in unrealized gains or (losses) relating to assets held at the reporting date Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule of Debt [Table Text Block] Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Acquisitions and Divestitures [Abstract] -- None. No documentation exists for this element. -- Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Vopak Terminal Assets Royal Vopak assets [Member] Royal Vopak assets [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Property, plant and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Goodwill Goodwill Other intangibles(a) Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Debt Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Cash consideration Payments to Acquire Businesses, Gross Finite-Lived Intangible Asset, Useful Life Finite-Lived Intangible Asset, Useful Life Income Tax Disclosure [Abstract] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Condensed Cash Flow Statement [Table] Condensed Cash Flow Statement [Table] Parent Issuer and Guarantor Parent Company [Member] Subsidiary Issuer and Guarantor - KMP KMP [Member] KMP [Member] Subsidiary Issuer and Guarantor - Copano EPB [Member] EPB [Member] EPB [Member] Subsidiary Guarantors Guarantor Subsidiaries Other [Member] Guarantor Subsidiaries Other [Member] Subsidiary Non-Guarantors Non-Guarantor Subsidiaries [Member] Consolidated KMI Consolidated Entity Excluding Variable Interest Entities (VIE) [Member] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Consolidating Adjustments [Member] Consolidation, Eliminations [Member] Condensed Cash Flow Statements, Captions [Line Items] Condensed Cash Flow Statements, Captions [Line Items] Net cash (used in) provided by operating activities Net Cash Provided by (Used in) Operating Activities Funding to affiliates Payments for Advance to Affiliate Capital expenditures Payments to Acquire Property, Plant, and Equipment Contributions to investments Payments to Acquire Other Investments Investment in KMP Payments to Acquire Interest in Subsidiaries and Affiliates Drop down assets to KMP Proceeds from Divestiture of Businesses Acquisitions of assets and investments Payments to Acquire Businesses, Net of Cash Acquired Distributions from equity investments in excess of cumulative earnings Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital Other, net Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Issuances of debt Proceeds from Issuance of Debt Payments of debt Funding from (to) affiliates Proceeds from Collection of (Payments to Fund) Long-term Loans to Related Parties Debt issue costs Payments of Debt Issuance Costs Issuances of shares Proceeds from Issuance of Common Stock Cash dividends Payments of Dividends Repurchases of shares and warrants Payments for repurchases of shares and warrants Payments for repurchases of shares and warrants Repurchases of warrants Payments for Repurchase of Warrants Contributions from parents Proceeds from Contributions from Parent Contributions from noncontrolling interests Proceeds from Noncontrolling Interests Distributions to parents Payments of Ordinary Dividends Distributions to noncontrolling interests Payments of Ordinary Dividends, Noncontrolling Interest Other, net Proceeds from (Payments for) Other Financing Activities Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and Cash Equivalents, beginning of period Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents, end of period Schedule of Purchase Price Allocation [Table Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Entities [Table] Entities [Table] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Natural Gas Pipelines Natural Gas Pipelines [Member] Natural Gas Pipelines [Member] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Convertible trust preferred securities Convertible Preferred Stock [Member] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] KMP [Member] Fort Union Gas Gathering L.L.C. and Bighorn Gas Gathering L.L.C. [Member] Fort Union Gas Gathering L.L.C. and Bighorn Gas Gathering L.L.C. [Member] Fort Union Gas Gathering L.L.C. and Bighorn Gas Gathering L.L.C. General [Line Items] Public Utilities, General Disclosures [Line Items] Approximate Enterprise Market Value Approximate Enterprise Market Value Approximate Enterprise Market Value Miles Of Pipeline Miles Of Pipeline Miles Of Pipeline Number Of Pipeline Terminals Owned Interest In And Or Operated Number Of Pipeline Terminals Owned Interest In And Or Operated Number Of Pipeline Terminals Owned Interest In And Or Operated Other Significant Noncash Transaction, Value of Consideration Given Other Significant Noncash Transaction, Value of Consideration Given Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Schedule of Debt [Table Text Block] Schedule of Debt [Table Text Block] Schedule of Significant Long-Term Debt Issuances and Payments [Table Text Block] Schedule of Significant Long-Term Debt Issuances and Payments [Table Text Block] [Table Text Block] for Schedule of Significant Long-Term Debt Issuances and Payments [Table] Acquisitions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Unvested restricted stock awards Restricted Stock [Member] Warrants to purchase our Class P shares Warrant [Member] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Class P Class P [Member] -- None. No documentation exists for this element. -- Participating securities(a) Participating Securities [Member] Participating Securities [Member] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Net Income Attributable to Kinder Morgan, Inc. Net Income (Loss) Available to Common Stockholders, Basic Net Income Attributable to Kinder Morgan, Inc. Net Income (Loss) Attributable to Parent Basic Weighted Average Shares Outstanding Weighted Average Number of Shares Outstanding, Basic Warrants(b) Incremental Common Shares Attributable to Dilutive Effect of Warrants Incremental Common Shares Attributable to Dilutive Effect of Warrants Diluted Weighted Average Shares Outstanding Weighted Average Number of Shares Outstanding, Diluted Unvested Restricted Stock Awards, Issued and Non Issued Unvested Restricted Stock Awards, Issued and Non Issued Unvested Restricted Stock Awards, Issued and Non Issued Class of Warrant or Right, Exercise Price of Warrants or Rights Class of Warrant or Right, Exercise Price of Warrants or Rights Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Condensed Income Statement [Table] Condensed Income Statement [Table] Condensed Income Statements, Captions [Line Items] Condensed Income Statements, Captions [Line Items] Total Revenues Revenues Costs of sales Cost of Goods Sold Depreciation, depletion and amortization Depreciation, Depletion and Amortization Other operating expenses Other Operating Income (Expense), Net Total operating costs, expenses and other Costs and Expenses Operating (loss) income Operating Income (Loss) Earnings from consolidated subsidiaries Income (Loss) from Subsidiaries, before Tax Earnings from equity investments Income (Loss) from Equity Method Investments Interest, net Interest Income (Expense), Net Amortization of excess cost of equity investments and other, net Other Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net Loss (Income) Attributable to Noncontrolling Interests Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to controlling interests Total other comprehensive loss Comprehensive income (loss) Comprehensive income attributable to noncontrolling interests Comprehensive income (loss) attributable to controlling interests Income Taxes Income Tax Disclosure [Text Block] Stockholders' Equity Note [Abstract] Schedule of Dividends Payable [Table Text Block] Schedule of Dividends Payable [Table Text Block] Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Note Disclosure [Text Block] Debt [Text Block] Debt Disclosure [Text Block] Loss Contingency, Information about Litigation Matters [Abstract] Loss Contingencies [Table] Loss Contingencies [Table] Public Utilities, Regulatory Proceeding [Axis] Public Utilities, Regulatory Proceeding [Axis] Public Utilities, Regulatory Proceeding [Domain] Public Utilities, Regulatory Proceeding [Domain] 2008 rate case and the 2010 rate case [Member] 2008 rate case and the 2010 rate case [Member] 2008 rate case and the 2010 rate case [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Merger Transactions [Member] Merger Transactions [Member] Merger Transactions [Member] Union Pacific Railroad Company v. Santa Fe Pacific Pipelines, Inc., SFPP, L.P., Kinder Morgan Operating L.P. “D”, Kinder Morgan G.P., Inc., et al. [Member] Union Pacific Railroad Company v. Santa Fe Pacific Pipelines, Inc., SFPP, L.P., Kinder Morgan Operating L.P. “D”, Kinder Morgan G.P., Inc., et al. [Member] Union Pacific Railroad Company v. Santa Fe Pacific Pipelines, Inc., SFPP, L.P., Kinder Morgan Operating L.P. “D”, Kinder Morgan G.P., Inc., et al. [Member] Price Reporting Litigation [Member] Price Reporting Litigation [Member] Price Reporting Litigation [Member] KMEP Capex Litigation [Member] KMEP Capex Litigation [Member] KMEP Capex Litigation [Member] SFPP L.P. [Member] SFPP L.P. [Member] SFPP L.P. [Member] Kinder Morgan Bulk Terminals, Inc. [Member] El Paso Corporation [Member] El Paso Corporation [Member] Kinder Morgan Energy Partners, L.P. and El Paso Pipeline Partners, L.P. [Member] Kinder Morgan Energy Partners, L.P. and El Paso Pipeline Partners, L.P. [Member] Kinder Morgan Energy Partners, L.P. and El Paso Pipeline Partners, L.P. [Member] KMEP LP Capex Litigation [Member] KMEP LP Capex Litigation [Member] Slotoroff v KMI, KMGP and KMEP Elba Liquefaction [Member] Elba Liquefaction [Member] Elba Liquefaction [Member] Loss Contingencies by Name Associated with the Contingency [Axis] Loss Contingencies by Name Associated with the Contingency [Axis] Loss Contingencies by Name Associated with the Contingency [Axis] Loss Contingencies by Name Associated with the Contingency [Domain] Loss Contingencies by Name Associated with the Contingency [Domain] Loss Contingencies by Name Associated with the Contingency [Domain] Plains Gas Solutions, LLC v. Tennessee Gas Pipeline Company, L.L.C. et al [Member] Plains Gas Solutions, LLC v. Tennessee Gas Pipeline Company, L.L.C. et al [Member] Plains Gas Solutions, LLC v. Tennessee Gas Pipeline Company, L.L.C. et al [Member] Brinckerhoff v. El Paso Pipeline GP Company, LLC., et al. [Member] Brinckerhoff v. El Paso Pipeline GP Company, LLC., et al. [Member] Brinckerhoff v. El Paso Pipeline GP Company, LLC., et al. [Member] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Unfavorable Regulatory Action [Member] Unfavorable Regulatory Action [Member] Loss on Long-term Purchase Commitment [Member] Loss on Long-term Purchase Commitment [Member] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Pending Litigation [Member] Pending Litigation [Member] Opinion 517 issued and implemented (rehearing pending); and Opinion 528 issued and is awaiting filing of court document) [Member] Opinion 517 issued and implemented (rehearing pending); and Opinion 528 issued and is awaiting filing of court document) [Member] Opinion 517 issued and implemented (rehearing pending); and Opinion 528 issued and is awaiting filing of court document [Member] Regulation Status [Axis] Regulation Status [Axis] Regulated and Unregulated Operation [Domain] Regulated and Unregulated Operation [Domain] Regulated Operation [Member] Regulated Operation [Member] Other Commitments [Axis] Other Commitments [Axis] Other Commitments [Domain] Other Commitments [Domain] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Revenue Subject to Refund [Member] Revenue Subject to Refund [Member] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Various Shippers [Member] Various Shippers [Member] Various Shippers [Member] Regulatory Agency [Axis] Regulatory Agency [Axis] Regulatory Agency [Domain] Regulatory Agency [Domain] Federal Energy Regulatory Commission [Member] Federal Energy Regulatory Commission [Member] Federal Energy Regulatory Commission [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Lessee Leasing Arrangements, Operating Leases, Term of Contract Lessee Leasing Arrangements, Operating Leases, Term of Contract Loss Contingency, Initial Award Amount, Annual Rent Payable Loss Contingency, Initial Award Amount, Annual Rent Payable Loss Contingency, Initial Award Amount, Annual Rent Payable Loss Contingency, Damages Sought, Value Loss Contingency, Damages Sought, Value Business Acquisition, Additional Percentage of Interest Acquired Business Acquisition, Additional Percentage of Interest Acquired Business Acquisition, Additional Percentage of Interest Acquired Payments to Acquire Businesses, Gross Loss Contingency, Pending Claims, Number Loss Contingency, Pending Claims, Number Parent Issuer and Guarantor Subsidiary Guarantors [Member] Long-term Debt Capitalized Lease Debt Not Subject to Cross Guarantee Agreement Capitalized Lease Debt Not Subject to Cross Guarantee Agreement Capitalized Lease Debt Not Subject to Cross Guarantee Agreement Kinder Morgan Energy Partners, L.P. [Member] KMI 5.05% Senior Notes Due 2046 [Member] KMI 5.05% Senior Notes Due 2046 [Member] KMI 5.05% Senior Notes Due 2046 [Member] KMI 1.50% Senior Notes Due 2022 [Member] KMI 1.50% Senior Notes Due 2022 [Member] KMI 1.50% Senior Notes Due 2022 [Member] KMI 2.25% Senior Notes Due 2027 [Member] KMI 2.25% Senior Notes Due 2027 [Member] KMI 2.25% Senior Notes Due 2027 [Member] KMP 5.625% Senior Notes due February 15, 2015 [Member] KMP 5.625% Senior Notes due February 15, 2015 [Member] KMP 5.625% Senior Notes due February 15, 2015 [Member] KMI 5.15% Senior Notes due March 1, 2015 [Member] KMI 5.15% Senior Notes due March 1, 2015 [Member] KMI 5.15% Senior Notes due March 1, 2015 [Member] Proceeds from Issuance of Long-term Debt Proceeds from Issuance of Long-term Debt Derivative [Table] Derivative [Table] Derivative [Line Items] Derivative [Line Items] Derivative, Notional Amount Derivative, Notional Amount Interest rate, stated percentage Statement of Stockholders' Equity [Abstract] EP 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Kinder Morgan G.P., Inc., Kinder Morgan Energy Partners, L.P. , U.S. District Court, Arizona [Member] Roosevelt Irrigation District v. Kinder Morgan G.P., Inc., Kinder Morgan Energy Partners, L.P. , U.S. District Court, Arizona [Member] Roosevelt Irrigation District v. Kinder Morgan G.P., Inc., Kinder Morgan Energy Partners, L.P. , U.S. District Court, Arizona [Member] United States District Court, Southern District of California, case number 07CV1883WCAB [Member] United States District Court, Southern District of California, case number 07CV1883WCAB [Member] United States District Court, Southern District of California, case number 07CV1883WCAB [Member] Lower Passaic River Study Area [Member] Lower Passaic River Study Area [Member] Lower Passaic River Study Area [Member] Philadelphia Terminal, Notice of Violation [Member] [Member] Philadelphia Terminal, Notice of Violation [Member] [Member] Philadelphia Terminal, Notice of Violation [Member] [Member] Philadelphia and Point Breeze Terminals, Notice of Violation [Member] Point Breeze Terminal, Notice of Violation [Member] Point Breeze Terminal, Notice of Violation [Member] Central Florida Pipeline LLC [Member] Central Florida Pipeline LLC [Member] Central Florida Pipeline LLC [Member] Tentative Settlement [Member] Tentative Settlement [Member] Tentative Settlement [Member] Environmental Protection Agency [Member] Environmental Protection Agency [Member] Environmental Protection Agency [Member] Board of Commissioners of the Southeast Louisiana Flood Protection Authority - East [Member] Board of Commissioners of the Southeast Louisiana Flood Protection Authority - East [Member] Board of Commissioners of the Southeast Louisiana Flood Protection Authority - East [Member] Parish of Plaquemines, Louisiana [Member] Parish of Plaquemines, Louisiana [Member] Parish of Plaquemines, Louisiana [Member] Environmental Remediation Site [Axis] Environmental Remediation Site [Axis] Environmental Remediation Site [Domain] Environmental Remediation Site [Domain] SFPP Phoenix Terminal [Member] SFPP Phoenix Terminal [Member] SFPP Phoenix Terminal [Member] Mission Valley Terminal Facility [Member] Mission Valley Terminal Facility [Member] Mission Valley Terminal Facility [Member] Bastian Bay, Buras, Empire and Fort Jackson oil and gas fields of Plaquemines Parish [Member] Bastian Bay, Buras, Empire and Fort Jackson oil and gas fields of Plaquemines Parish [Member] Bastian Bay, Buras, Empire and Fort Jackson oil and gas fields of Plaquemines Parish [Member] KMEP and SFPP [Member] KMEP and SFPP [Member] KMEP and SFPP [Member] Rare Metals Inc. [Member] Rare Metals Inc. [Member] Rare Metals Inc. 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Changes in components of working capital, net of the effects of acquisitions Increase (Decrease) in Operating Capital [Abstract] Accounts receivable, net Increase (Decrease) in Accounts Receivable Income tax receivable Increase (Decrease) in Income Taxes Receivable Inventories Increase (Decrease) in Inventories Other current assets Increase (Decrease) in Other Current Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued interest, net of interest rate swaps Increase (Decrease) in Interest Payable, Net Accrued contingencies and other current liabilities Increase (Decrease) in Other Current Liabilities Other, net Other Operating Activities, Cash Flow Statement Net Cash Provided by Operating Activities Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Business acquisitions, net of cash acquired Net Cash Used in Investing Activities Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Repurchases of shares and warrants Net Cash Provided by Financing Activities Effect of Exchange Rate Changes on Cash and Cash Equivalents Net decrease in Cash and Cash Equivalents Non-cash Investing and Financing Activities Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Assets acquired by the assumption or incurrence of liabilities Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) Net assets contributed to equity investment Transfer to Investments Supplemental Disclosures of Cash Flow Information Supplemental Cash Flow Information [Abstract] Cash paid during the period for interest (net of capitalized interest) Interest Paid, Net Cash (refunded) paid during the period for income taxes, net Income Taxes Paid, Net Schedule of Credit Derivatives [Table] Schedule of Credit Derivatives [Table] External Credit Rating by Grouping [Axis] External Credit Rating by Grouping [Axis] External Credit Rating by Grouping [Domain] External Credit Rating by Grouping [Domain] One notch credit downgrade [Member] One notch credit downgrade [Member] One notch credit downgrade Two notch credit downgrade [Member] Two notch credit downgrade [Member] Two notch credit downgrade [Member] Credit Derivatives [Line Items] Credit Derivatives [Line Items] Derivative, Collateral, Obligation to Return Cash Additional Collateral, Aggregate Fair Value Additional Collateral, Aggregate Fair Value Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Affiliated Entity [Member] Affiliated Entity [Member] Condensed Balance Sheet Statements, Captions [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Other non-current assets Deferred tax assets Total assets Current portion of debt Long-term Debt, Current Maturities All other current liabilities Other Liabilities, Current Long-term debt Notes 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Reclassifications [Member] Amounts reclassified from accumulated other comprehensive loss Amounts reclassified from AOCI [Member] Amounts reclassified from AOCI [Member] Reclass Scenario [Axis] Reclass Scenario [Axis] Reclass Scenario [Axis] Reclass Scenario [Domain] Reclass Scenario [Domain] [Domain] for Reclass Scenario [Axis] Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income [Line Items] Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income [Line Items] [Line Items] for Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income [Table] Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income [Roll Forward] Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income [Roll Forward] Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income [Roll Forward] Net unrealized gains/(losses) on cash flow hedge derivatives Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Foreign currency translation adjustments Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Pension and other postretirement liability adjustments Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax Total accumulated other comprehensive loss Other comprehensive loss before reclassifications Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax Portion Attributable To Parent Change in accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges, net of tax effect, attributable to the parent entity. The after tax effect change includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. Amounts reclassified from accumulated other comprehensive loss Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax Portion Attributable To Parent Net of tax effect of the reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period attributable to the parent entity. Net current-period other comprehensive loss Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Other comprehensive loss before reclassifications Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Before Reclassifications, Portion Attributable to Parent Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Before Reclassifications, Portion Attributable to Parent Amounts reclassified from accumulated other comprehensive loss Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax Net current-period other comprehensive loss Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment and Impact of Merger Transactions, Net of Tax, Portion Attributable to Parent Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment and Impact of Merger Transactions, Net of Tax, Portion Attributable to Parent Other comprehensive loss before reclassifications Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax Amounts reclassified from accumulated other comprehensive loss Other Comprehensive Income Loss Reclassification Adjustment From AOCI Pension And Other Postretiremen tBenefit Plans Net Of Tax Portion Attributable To Parent Other Comprehensive Income Loss Reclassification Adjustment From AOCI Pension And Other Postretiremen tBenefit Plans Net Of Tax Portion Attributable To Parent Net current-period other comprehensive loss Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent Other comprehensive loss before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Amounts reclassified from accumulated other comprehensive loss Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Net current-period other comprehensive loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Impact of Merger Transactions Other Comprehensive Income (Loss), Net of Tax, Impact of Merger Transactions Net unrealized gains/(losses) on cash flow hedge derivatives Foreign currency translation adjustments Pension and other postretirement liability adjustments Total accumulated other comprehensive loss Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance Derivative Instruments, Gain (Loss) [Table Text Block] Income tax expense Effective tax rate Effective Income Tax Rate Reconciliation, Percent Federal statutory income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Unrecognized Tax Benefits Unrecognized Tax Benefits Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Repreations, Refunds, and Rate Reductions [Member] Repreations, Refunds, and Rate Reductions [Member] Repreations, Refunds, and Rate Reductions [Member] Annual Rate Reductions [Member] Annual Rate Reductions [Member] Annual Rate Reductions [Member] SFPP [Member] SFPP [Member] SFPP [Member] Loss Contingency Period of Time Litigation Concerns Loss Contingency Period of Time Litigation Concerns Loss Contingency Period of Time Litigation Concerns SFPP [Abstract] SFPP [Abstract] SFPP [Abstract] EPNG [Abstract] EPNG [Abstract] EPNG [Abstract] Galena Park, Texas [Member] Galena Park, Texas [Member] Galena Park, Texas [Member] NORTH CAROLINA NORTH CAROLINA North Wilmington, North Carolina [Member] North Wilmington, North Carolina [Member] North Wilmington, North Carolina [Member] South Wilmington, North Carolina [Member] South Wilmington, North Carolina [Member] South Wilmington, North Carolina [Member] Number of terminals Number of terminals Number of terminals Number of Real Estate Properties Number of Real Estate Properties Area of Land (acres) Area of Land Storage Capacity (barrels) Storage Capacity Storage Capacity