Litigation, Environmental and Other Contingencies (Details) (USD $)		9 Months Ended				0 Months Ended		12 Months Ended		0 Months Ended	120 Months Ended			0 Months Ended			0 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended	1 Months Ended	12 Months Ended		6 Months Ended	0 Months Ended
	Dec. 31, 2013	Sep. 30, 2013 Plains Gas Solutions, LLC v. Tennessee Gas Pipeline Company, L.L.C. et al [Member]	Dec. 31, 2012 Pending Litigation [Member] Unfavorable Regulatory Action [Member]	Dec. 31, 2013 SFPP [Member] Pending Litigation [Member] Various Shippers [Member] California Public Utilities Commission [Member] Regulated Operation [Member]	Dec. 31, 2013 SFPP [Member] Pending Litigation [Member] Unfavorable Regulatory Action [Member] Various Shippers [Member] Repreations, Refunds, and Rate Reductions [Member] Federal Energy Regulatory Commission [Member] Regulated Operation [Member]	Dec. 31, 2013 SFPP [Member] Pending Litigation [Member] Unfavorable Regulatory Action [Member] Various Shippers [Member] Annual Revenue Reductions [Member] California Public Utilities Commission [Member] Regulated Operation [Member]	Dec. 31, 2013 SFPP [Member] Pending Litigation [Member] Unfavorable Regulatory Action [Member] Various Shippers [Member] Reparations [Member] California Public Utilities Commission [Member] Regulated Operation [Member]	Dec. 31, 2013 SFPP [Member] Pending Litigation [Member] Unfavorable Regulatory Action [Member] Various Shippers [Member] Revenue Subject to Refund [Member] Federal Energy Regulatory Commission [Member] Regulated Operation [Member]	Dec. 31, 2013 SFPP [Member] Pending Litigation [Member] Unfavorable Regulatory Action [Member] Various Shippers [Member] Annual Rate Reductions [Member] Federal Energy Regulatory Commission [Member] Regulated Operation [Member]	Oct. 25, 2013 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] SFPP L.P. [Member] Pending Litigation [Member]	Dec. 31, 2023 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] SFPP L.P. [Member] Pending Litigation [Member]	Dec. 31, 2013 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] SFPP L.P. [Member] Pending Litigation [Member]	Dec. 31, 2013 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] SFPP L.P. [Member] Pending Litigation [Member] Loss on Long-term Purchase Commitment [Member]	Dec. 31, 2013 Severstal Sparrows Point Crane Collapse [Member] Kinder Morgan Bulk Terminals, Inc. [Member] Pending Litigation [Member] Negligence Claim [Member]	May 01, 2013 Punative Class Action Lawsuits [Member] Schultes v. Copano Ennergy, L.L.C., Bruen v. Copano Energy L.L.C., and In re Copano Energy, L.L.C. Shareholder Lititgation [Member] Copano Energy, LLC [Member] Settled [Member]	Dec. 31, 2013 Punative Class Action Lawsuits [Member] In re Copano Energy, L.L.C. Shareholder Litigation [Member] Copano Energy, LLC [Member] Settled [Member]	Sep. 09, 2013 Legal fees and expenses [Member] Punative Class Action Lawsuits [Member] Schultes v. Copano Ennergy, L.L.C., Bruen v. Copano Energy L.L.C., and In re Copano Energy, L.L.C. Shareholder Lititgation [Member] Copano Energy, LLC [Member] Settled [Member]	Aug. 07, 2013 SFPP Phoenix Terminal [Member] Roosevelt Irrigation District v. Kinder Morgan G.P., Inc., Kinder Morgan Energy Partners, L.P. , U.S. District Court, Arizona [Member] KMEP and SFPP [Member] Pending Litigation [Member] Unfavorable Regulatory Action [Member] Defendants	Sep. 30, 2013 SFPP Phoenix Terminal [Member] Roosevelt Irrigation District v. Kinder Morgan G.P., Inc., Kinder Morgan Energy Partners, L.P. , U.S. District Court, Arizona [Member] KMEP and SFPP [Member] Pending Litigation [Member] Unfavorable Regulatory Action [Member] Defendants	Sep. 30, 2013 Southwestern Colorado [Member] Kinder Morgan CO2 [Member] Colorado Oil and Gas Conservation Commission [Member] Settlement through Administrative Order on Consent [Member]	Apr. 09, 2013 Los Angeles Marine Terminal in the Port of Los Angeles [Member] Environmental Issue [Member] California Superior Court, County of Los Angeles, Case No. NC041463 [Member] Kinder Morgan Liquids Terminals, LLC [Member] Settled [Member]	Jun. 30, 2011 Paulsboro, New Jersey Liquids Terminal [Member] Environmental Issue [Member] Exxon Mobil Corporation v. GATX Corporation, Kinder Morgan Liquids Terminals, LLC and ST Services, Inc. [Member] Kinder Morgan Liquids Terminals, LLC [Member] Settled [Member]	Sep. 30, 2013 Paulsboro, New Jersey Liquids Terminal [Member] Environmental Issue [Member] Exxon Mobil Compliant [Member] Kinder Morgan Liquids Terminals, LLC [Member] Settled [Member]	Aug. 31, 2007 Mission Valley Terminal Facility [Member] Environmental Issue [Member] United States District Court, Southern District of California, case number 07CV1883WCAB [Member] Kinder Morgan Energy Partners, L.P. [Member] Pending Litigation [Member]	Dec. 31, 2010 Mission Valley Terminal Facility [Member] Environmental Issue [Member] United States District Court, Southern District of California, case number 07CV1883WCAB [Member] Kinder Morgan Energy Partners, L.P. [Member] Pending Litigation [Member]	Dec. 31, 2013 2008 rate case and the 2010 rate case [Member] EPNG [Member] Opinion 517 issued and implemented (rehearing pending); and Opinion 528 issued and is awaiting filing of court document) [Member] Unfavorable Regulatory Action [Member] Various Shippers [Member] Federal Energy Regulatory Commission [Member] Regulated Operation [Member]	Jun. 30, 2013 PHMSA Inspection of Carteret Terminal [Member] Carteret Terminal, Carteret, NJ [Member] Environmental Issue [Member] Kinder Morgan Liquids Terminals, LLC [Member] PHMSA [Member]	Jul. 20, 2013 Intrastate [Member] Calnev Pipe Line LLC [Member] Pending Litigation [Member] Various Shippers [Member] California Public Utilities Commission [Member] Regulated Operation [Member]	Jan. 30, 2012 Intrastate [Member] SFPP [Member] Pending Litigation [Member] Various Shippers [Member] California Public Utilities Commission [Member] Regulated Operation [Member]	Oct. 17, 2013 Pro Forma [Member] EPNG 2010 Rate Case [Member] EPNG [Member] Pending Litigation [Member] Unfavorable Regulatory Action [Member] Various Shippers [Member] Federal Energy Regulatory Commission [Member] Regulated Operation [Member]
Loss Contingencies [Line Items]
Loss Contingentcy, Period of Time Litigation Concerns					2 years
Cost of Services, Environmental Remediation																							$ 750,000
Litigation Settlement, Amount																						1,000,000					63,100
Loss Contingency, Range of Possible Loss, Maximum																					15,000,000
Public Utilities, Requested Rate Increase (Decrease), Percentage																												(36.00%)	7.00%
Number of Class Action Lawsuits															3	3										2
Loss contingency, damages sought, value						30,000,000	400,000,000	100,000,000	20,000,000	22,250,000				30,000,000					175,000,000					170,000,000	365,000,000
Lessee Leasing Arrangements, Operating Leases, Term of Contract											10 years	10 years
Loss Contingency, Damages Sought		100
Estimated Litigation Liability	611,000,000		404,000,000
Environmental Settlement																				220,000
Annual rent payable													15,000,000
Loss Contingency, Estimate of Possible Loss													90,000,000
Loss contingency, interest associated with settlement													20,000,000
Loss Contingency, Damages Paid, Value																	450,000
Payment for Environmental Liabilities, Paid Toward Public Project																				$ 80,000
Loss Contingency, Number of Defendants																		26	70
Litigation, Court Order, Document Filing Period																														60 days
Loss Contingency, Number of Judges				2