Litigation, Environmental and Other Contingencies (Details) (USD $) In Millions, unless otherwise specified			9 Months Ended	240 Months Ended	0 Months Ended	123 Months Ended			6 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended			1 Months Ended	12 Months Ended	1 Months Ended	6 Months Ended		6 Months Ended						0 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013 Plains Gas Solutions, LLC v. Tennessee Gas Pipeline Company, L.L.C. et al [Member]	Dec. 31, 1969 Rare Metals Inc. [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]	Mar. 31, 2014 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]	Jun. 30, 2014 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] Loss on Long-term Purchase Commitment [Member] Pending Litigation [Member]	Jan. 01, 2004 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] Loss on Long-term Purchase Commitment [Member] Pending Litigation [Member]	Jun. 30, 2014 SFPP, L.P. vs. UPRR on relocation costs [Member] SFPP L.P. [Member] Pending Litigation [Member]	Mar. 31, 2014 Severstal Sparrows Point Crane Collapse [Member] Kinder Morgan Bulk Terminals, Inc. [Member] Negligence Claim [Member] Pending Litigation [Member]	Jun. 30, 2014 Severstal Sparrows Point Crane Collapse [Member] Kinder Morgan Bulk Terminals, Inc. [Member] Negligence Claim [Member] Pending Litigation [Member]	Jun. 30, 2014 TGP's 300 Line Project [Member] Environmental Issue [Member] Pennsylvania Department of Environmental Protection [Member] Tennessee Gas Pipeline Company LLC [Member]	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] Unfavorable Regulatory Action [Member] Pending Litigation [Member] Defendants	Jun. 30, 2014 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] Unfavorable Regulatory Action [Member] Pending Litigation [Member]	Jun. 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] Unfavorable Regulatory Action [Member] Pending Litigation [Member] Defendants	Jun. 30, 2011 SFPP Phoenix Terminal [Member] Paulsboro, New Jersey Liquids Terminal [Member] GATX Terminals Corporation (n/k/a KMLT) [Member] Pending Litigation [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, 2000 Allocation Process Negotiations and Awaiting Record of Decision [Member] Portland Harbor Superfund Site, Willamette River, Portland, Oregon [Member] Environmental Protection Agency [Member] GATX Terminals Corporation (n/k/a KMLT) [Member] Terminals	Jun. 30, 2014 Allocation Process Negotiations and Awaiting Record of Decision [Member] Portland Harbor Superfund Site, Willamette River, Portland, Oregon [Member] Environmental Protection Agency [Member] GATX Terminals Corporation (n/k/a KMLT) [Member] Terminals Parties	Jun. 30, 2014 Regulated Operation [Member] California Public Utilities Commission [Member] Various Shippers [Member] SFPP [Member] Pending Litigation [Member]	Jun. 30, 2014 Regulated Operation [Member] Repreations, Refunds, and Rate Reductions [Member] Federal Energy Regulatory Commission [Member] Various Shippers [Member] SFPP [Member] Unfavorable Regulatory Action [Member] Pending Litigation [Member]	Jun. 30, 2014 Regulated Operation [Member] Annual Rate Reductions [Member] Federal Energy Regulatory Commission [Member] Various Shippers [Member] SFPP [Member] Unfavorable Regulatory Action [Member] Pending Litigation [Member]	Jun. 30, 2014 Regulated Operation [Member] Revenue Subject to Refund [Member] Federal Energy Regulatory Commission [Member] Various Shippers [Member] SFPP [Member] Unfavorable Regulatory Action [Member] Pending Litigation [Member]	Jun. 30, 2014 Regulated Operation [Member] Reparations [Member] California Public Utilities Commission [Member] Various Shippers [Member] SFPP [Member] Unfavorable Regulatory Action [Member] Pending Litigation [Member]	Jun. 30, 2014 Regulated Operation [Member] Annual Revenue Reductions [Member] California Public Utilities Commission [Member] Various Shippers [Member] SFPP [Member] Unfavorable Regulatory Action [Member] Pending Litigation [Member]	Jun. 30, 2014 Regulated Operation [Member] 2008 rate case and the 2010 rate case [Member] Federal Energy Regulatory Commission [Member] Various Shippers [Member] EPNG [Member] Unfavorable Regulatory Action [Member] Opinion 517 issued and implemented (rehearing pending); and Opinion 528 issued and is awaiting filing of court document) [Member]	Jan. 30, 2012 Regulated Operation [Member] Intrastate [Member] California Public Utilities Commission [Member] Various Shippers [Member] SFPP [Member] Pending Litigation [Member]	Jul. 20, 2013 Regulated Operation [Member] Intrastate [Member] California Public Utilities Commission [Member] Various Shippers [Member] Calnev Pipe Line LLC [Member] Pending Litigation [Member]	Oct. 25, 2013 2014 - 2023 [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] SFPP L.P. [Member] Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingentcy, Period of Time Litigation Concerns																						2 years
Number of Parties Involved In Site Cleanup Allocation Negotiations																				90
Loss Contingency, Damages Sought, Value			$ 100.00		$ 22.25						$ 30.00	$ 1.50		$ 175.00		$ 1.00	$ 170.00	$ 365.00					$ 20.00	$ 100.00	$ 400.00	$ 30.00
Loss Contingency, Pending Claims, Number																											2
Estimated Litigation Liability	678	611
Lessee Leasing Arrangements, Operating Leases, Term of Contract						10 years																								10 years
Loss contingency, settlement tentative by court, value									42.65	13.79	15.55
Litigation, Environmental Settlement Amount, Percentage of Cost																50.00%
Loss Contingency, Number of Judges																					2
Public Utilities, Requested Rate Increase (Decrease), Percentage																												(7.00%)	36.00%
Annual rent payable								14
Loss Contingency, Estimate of Possible Loss							95
Loss contingency, interest associated with settlement							$ 20
Number of Liquid Terminals																			2	2
Loss Contingency, Number of Defendants													26		70
Number of Uranium Mines				20