Debt (Details) (USD $)						12 Months Ended														1 Months Ended
	Dec. 31, 2013	Aug. 05, 2013	Feb. 28, 2013	Dec. 31, 2012	Aug. 13, 2012	Dec. 31, 2013 EPNG - Notes, 5.95% through 8.625%, due 2017 through 2032 [Member]	Dec. 31, 2013 TGP - Notes, 7.00% through 8.375%, due 2016 through 2037 [Member]	Dec. 31, 2013 Senior Notes [Member]	Dec. 31, 2013 KMP 7.125% Senior Notes due April 1, 2021 (Copano) [Member]	Dec. 31, 2013 KMP Senior notes, 2.65% through 9.00%, due 2013 through 2043 [Member]	Dec. 31, 2012 KMP Senior notes, 2.65% through 9.00%, due 2013 through 2043 [Member]	Dec. 31, 2013 Kinder Morgan Liquids Terminals LLC NJ Development Revenue Bonds [Member]	Dec. 31, 2012 Kinder Morgan Liquids Terminals LLC NJ Development Revenue Bonds [Member]	Dec. 31, 2013 TGP [Member] KMP Senior notes, 7.00% through 8.375%, due 2016 through 2037 [Member]	Dec. 31, 2012 TGP [Member] KMP Senior notes, 7.00% through 8.375%, due 2016 through 2037 [Member]	Sep. 30, 2013 Copano Energy, LLC [Member] KMP 7.125% Senior Notes due April 1, 2021 (Copano) [Member]	May 01, 2013 Copano Energy, LLC [Member] KMP 7.125% Senior Notes due April 1, 2021 (Copano) [Member]	Dec. 31, 2013 Copano Energy, LLC [Member] Kinder Morgan Operating L.P. B IL Revenue Bonds [Member]	Dec. 31, 2012 Copano Energy, LLC [Member] Kinder Morgan Operating L.P. B IL Revenue Bonds [Member]	May 31, 2013 Revolving Credit Facility [Member]	Dec. 31, 2014 Commercial Paper [Member]	May 01, 2013 Commercial Paper [Member]	Dec. 31, 2013 Commercial Paper [Member] Kinder Morgan Energy Partners, L.P. [Member]	Dec. 31, 2012 Commercial Paper [Member] Kinder Morgan Energy Partners, L.P. [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity Increase																				$ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum						5.95%	7.00%	2.65%
Senior Notes		1,750,000,000	1,000,000,000		1,250,000,000					15,600,000,000	13,350,000,000	1,115,000,000	1,115,000,000	1,790,000,000	1,790,000,000		510,000,000	332,000,000	0
Commercial Paper	979,000,000			621,000,000
Line of Credit Facility, Amount Outstanding	0			0
Current portion of debt	(1,504,000,000)			(1,155,000,000)
Long-term Debt, Excluding Current Maturities	18,410,000,000			15,907,000,000
Debt fair value adjustments	1,214,000,000			1,698,000,000
Redemption price of debt as a percentage of face amount	100.00%
Line of Credit Facility, Maximum Borrowing Capacity																					3,700,000,000	2,700,000,000
Debt, Weighted Average Interest Rate	4.62%			4.24%																			0.28%	0.45%
Debt Instrument, Interest Rate, Stated Percentage									7.125%							7.125%	7.125%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum						8.625%	8.375%	9.00%
Other Long-term Debt	98,000,000			186,000,000
Long-term Debt	$ 19,914,000,000			$ 17,062,000,000