Partners Capital Equity Issuances (Details) (USD $)	0 Months Ended		3 Months Ended		12 Months Ended					0 Months Ended	1 Months Ended		9 Months Ended	12 Months Ended			12 Months Ended		12 Months Ended		0 Months Ended	12 Months Ended				12 Months Ended					12 Months Ended			3 Months Ended		12 Months Ended		0 Months Ended	3 Months Ended	0 Months Ended					0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended
	May 03, 2013	Mar. 03, 2013	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 01, 2013	Feb. 28, 2013	Mar. 03, 2013 KMI Asset Drop Down [Member]	May 31, 2013 KMI Asset Drop Down [Member]	Aug. 31, 2012 KMI Asset Drop Down [Member]	Sep. 30, 2012 KMI Asset Drop Down [Member]	Dec. 31, 2013 KMI Asset Drop Down [Member]	Aug. 01, 2012 El Paso Midstream Investment Company, LLC. [Member]	Jun. 02, 2012 El Paso Midstream Investment Company, LLC. [Member]	Dec. 31, 2013 i-units [Member]	Aug. 13, 2012 i-units [Member]	Dec. 31, 2013 Common Unit [Member] KMI Asset Drop Down [Member]	Dec. 14, 2012 Common Units [Member]	Aug. 06, 2012 Common Units [Member] KMI Asset Drop Down [Member]	Dec. 31, 2013 Common Units [Member] KMI Asset Drop Down [Member]	Aug. 13, 2012 Common Units [Member] KMI Asset Drop Down [Member]	Dec. 31, 2013 Fourth Amended Equity Distribution Agreement [Member]	Dec. 31, 2013 Third Amended Equity Distribution Agreement [Member]	Dec. 31, 2013 Common Units [Member]	Dec. 31, 2012 Common Units [Member]	Dec. 31, 2011 Common Units [Member]	Mar. 01, 2013 Common Units [Member]	Feb. 28, 2013 Common Units [Member]	Dec. 31, 2013 i-units [Member]	Dec. 31, 2012 i-units [Member]	Dec. 31, 2011 i-units [Member]	Dec. 31, 2012 Kinder Morgan Energy Partners, L.P. [Member]	Mar. 31, 2012 Kinder Morgan Energy Partners, L.P. [Member]	Dec. 31, 2013 Kinder Morgan Energy Partners, L.P. [Member] El Paso Midstream Investment Company, LLC. [Member]	May 01, 2013 Kinder Morgan Energy Partners, L.P. [Member] Common Units [Member] Copano Energy, LLC [Member]	Aug. 06, 2012 Kinder Morgan Energy Partners, L.P. [Member] Common Units [Member] KMI Asset Drop Down [Member]	Dec. 31, 2012 Kinder Morgan Energy Partners, L.P. [Member] Commercial Paper [Member]	May 03, 2013 Kinder Morgan Energy Partners, L.P. [Member] Common Units [Member] Copano Energy, LLC [Member]	Dec. 31, 2013 Kinder Morgan Energy Partners, L.P. [Member] i-units [Member]	Mar. 01, 2013 El Paso Midstream Investment Company, LLC. [Member]	Jun. 02, 2012 El Paso Midstream Investment Company, LLC. [Member]	Dec. 31, 2013 Kinder Morgan Management, LLC [Member] i-units [Member]	Mar. 03, 2013 General Partner [Member]	Dec. 31, 2013 General Partner [Member] KMI Asset Drop Down [Member]	Mar. 03, 2013 Noncontrolling Interest [Member]	Dec. 31, 2013 Noncontrolling Interest [Member] KMI Asset Drop Down [Member]	Dec. 31, 2012 Equity distribution agreement [Member] Kinder Morgan Energy Partners, L.P. [Member]	Dec. 31, 2013 Settlements subsequent to period [Member] Kinder Morgan Energy Partners, L.P. [Member]	Dec. 31, 2013 Settlements subsequent to period [Member] Equity distribution agreement [Member] Kinder Morgan Energy Partners, L.P. [Member]
Limited Partners' Capital Account [Line Items]
Amount Of Incentive Distribution Waived As Result Of Copano Acquisition	$ 50,000,000		$ 25,000,000	$ 25,000,000
Business Acquisition, Share Price																																					$ 86.08
Value Of Units Available For Sale Under Third Amendment Of Equity Distribution Agreement With UBS																																			1,900,000,000
Value Of Units Available For Sale Under Second Amendment Of Equity Distribution Agreement With UBS																																			1,200,000,000
Stock Dividends, Shares			2,237,258		7,565,200	6,488,946	6,601,402
Incentive Distribution, Distribution			445,000,000		1,632,000,000	1,322,000,000	1,147,000,000
Payments to Acquire Businesses, Gross										994,000,000	6,000,000	3,000,000,000	3,465,000,000
Shares issued																	10,120,000
Sale of Stock, Price Per Share								$ 86.72	$ 86.35							$ 76.23		$ 73.50		$ 78.60			$ 81.52
Value of units available for sale under third amendment of equity distribution agreement with UBS																								2,175,000,000	1,900,000,000
Common Units Issued																																							4,485,000										6,932,576	198,110	76,100
Noncontrolling Interest, Increase from Subsidiary Equity Issuance																																		349,000,000															560,000,000	16,000,000	6,000,000
Proceeds from issuance of common units			900,000,000		1,285,000,000	909,000,000	955,000,000
i-units issued																										10,814,474			1,249,452	4,600,000	2,640,196
i-units Proceeds																													108,000,000	385,000,000											210,000,000			500,000,000
Units issued for cash, Units																										15,414,474	11,417,576	13,469,708			2,640,196	10,120,000	0			3,792,461
Business acquisition, equity interest issued (in shares)																			4,667,575		4,667,575																			43,371,210
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable																																								3,733,000,000
Stock Issued During Period, Value, Acquisitions																			381,000,000			381,000,000																400,000,000
Equity Method Investment, Ownership Percentage															50.00%																											50.00%	50.00%
Proceeds from Issuance or Sale of Equity																	727,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net						7,477,000,000		35,000,000
Increase (Decrease) in Partners' Capital		$ 1,067,000,000												$ 3,631,000,000																															$ 1,057,000,000	$ 3,594,000,000	$ 10,000,000	$ 36,000,000