v2.4.0.6

Acquisitions and Divestitures Drop-down of EP Assets to KMP (Details) (USD $) Share data in Billions, except Per Share data, unless otherwise specified					3 Months Ended
	Mar. 31, 2013 mi	Mar. 31, 2013 Kinder Morgan Energy Partners, L.P. [Member] EPNG and El Paso Midstream drop down transaction [Member] [Member]	Aug. 02, 2012 Kinder Morgan Energy Partners, L.P. [Member] El Paso Natural Gas Company (EPNG) [Member]	Aug. 02, 2012 Kinder Morgan Energy Partners, L.P. [Member] TGP and EPNG drop down transaction [Member]	Mar. 31, 2013 Senior secured term loan credit facility, due May 24, 2015 [Member] Kinder Morgan, Inc. [Member]
Business Acquisition [Line Items]
Ownership interest			50.00%
Miles of pipeline	73,000
Total Purchase Price		$ 1,700,000,000		$ 6,200,000,000
Cash portion of purchase price		1,000,000,000
Business Acquisition, Cost of Acquired Entity, Equity Interests Issued and Issuable		108,000,000
Shares, Issued		0
Sale of Stock, Price Per Share		$ 86.72
Business Acquisition, Purchase Price Allocation, Liabilities Assumed		557,000,000
Repayments of Long-term Debt					$ 947,000,000

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