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Debt Phantom (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	6 Months Ended
	Feb. 29, 2016	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Debt Instrument [Line Items]
Repayments of Debt		$ 6,800	$ 8,941
Kinder Morgan, Inc. [Member] | Unsecured term loan facility, variable rate, due January 26, 2019(a)
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt		$ 1,000
Kinder Morgan, Inc. [Member] | $786 million 7.00% notes due June 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%
Senior Notes, Current		$ 786
Kinder Morgan Energy Partners, L.P. [Member] | $600 million 6.00% notes due February 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.00%
Senior Notes, Current		$ 600
Kinder Morgan Energy Partners, L.P. [Member] | $500 million 3.50% notes due 2016
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.50%		3.50%
Repayments of Debt		$ 500
Senior Notes, Current				$ 500
TGP [Member] | $300 million 7.50% notes due April 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%
Senior Notes, Current		$ 300
TGP [Member] | $250 million 8.00% notes due 2016
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.00%
Repayments of Debt	$ 250	$ 250
EPNG [Member] | $355 million 5.95% notes due April 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%
Senior Notes, Current		$ 355
Copano Energy, L.L.C. [Member]
Debt Instrument [Line Items]
Repayments of Debt		$ 0	$ 0
Copano Energy, L.L.C. [Member] | Copano senior notes, 7.125%, due April 1, 2021
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.125%
Colorado Interstate Gas Company, L.L.C. [Member] | CIG senior note, 6.85%, due June 15, 2037
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.85%
SNG [Member] | $500 million 5.90% notes due April 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%
Senior Notes, Current		$ 500
EPC Building LLC [Member] | EPC Building, LLC, promissory note, 3.967%, due 2016 through 2035
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.967%
Capital Trust I [Member] | Preferred securities, 4.75%, due March 31, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.75%
Kinder Morgan G.P., Inc. [Member] | KMGP, $1,000 Liquidation Value Series A Fixed-to-Floating Rate Term Cumulative Preferred Stock
Debt Instrument [Line Items]
Preferred Interest of General Partner, Par or Stated Value Per Share		$ 1,000
Minimum [Member] | Kinder Morgan, Inc. [Member] | Senior notes, 1.50% through 8.25%, due 2016 through 2098(b)
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.50%
Minimum [Member] | Kinder Morgan Energy Partners, L.P. [Member] | Senior notes, 2.65% through 9.00%, due 2016 through 2044
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.65%
Minimum [Member] | TGP [Member] | TGP senior notes, 7.00% through 8.375%, due 2016 through 2037
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.00%
Minimum [Member] | EPNG [Member] | EPNG senior notes, 5.95% through 8.625%, due 2017 through 2032
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.95%
Minimum [Member] | SNG [Member] | SNG notes, 4.40% through 8.00%, due 2017 through 2032
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.40%
Minimum [Member] | Kinder Morgan Finance Company, LLC [Member] | Kinder Morgan Finance Company, LLC, senior notes, 5.70% through 6.40%, due 2016 through 2036
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.70%
Minimum [Member] | Hiland Partners Holding LLC [Member] | Hiland Partners Holdings LLC, senior notes, 5.50% and 7.25%, due 2020 and 2022
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.50%
Maximum [Member] | Kinder Morgan, Inc. [Member] | Senior notes, 1.50% through 8.25%, due 2016 through 2098(b)
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.25%
Maximum [Member] | Kinder Morgan Energy Partners, L.P. [Member] | Senior notes, 2.65% through 9.00%, due 2016 through 2044
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		9.00%
Maximum [Member] | TGP [Member] | TGP senior notes, 7.00% through 8.375%, due 2016 through 2037
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.375%
Maximum [Member] | EPNG [Member] | EPNG senior notes, 5.95% through 8.625%, due 2017 through 2032
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.625%
Maximum [Member] | SNG [Member] | SNG notes, 4.40% through 8.00%, due 2017 through 2032
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.00%
Maximum [Member] | Kinder Morgan Finance Company, LLC [Member] | Kinder Morgan Finance Company, LLC, senior notes, 5.70% through 6.40%, due 2016 through 2036
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.40%
Maximum [Member] | Hiland Partners Holding LLC [Member] | Hiland Partners Holdings LLC, senior notes, 5.50% and 7.25%, due 2020 and 2022
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.25%

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