v2.4.0.6

General (Details) (USD $) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2013 Terminals mi | Mar. 31, 2013 Kinder Morgan Energy Partners, L.P. [Member] | Mar. 31, 2013 El Paso Corporation [Member] | Mar. 31, 2013 Kinder Morgan Energy Partners, L.P. [Member] | Dec. 31, 2012 Rockies Express Pipeline LLC [Member] KMP’s FTC Natural Gas Pipelines [Member] | Nov. 01, 2012 Energy Transfers Partners LP [Member] KMP’s FTC Natural Gas Pipelines [Member]
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Enterprise Market Value | $ 115,000,000,000 |  |  |  |  |
Miles of pipeline | 73,000 |  |  |  |  |
Number of pipeline terminals | 180 |  |  |  |  |
Ownership interest |  | 11.00% |  |  | 50.00% |
Limited partnership ownership percentage | 41.00% |  |  |  |  |
General partnership ownership interest | 2.00% |  |  |  |  |
Percentage of ownership to classify as equity method investment | 50.00% |  |  |  |  |
Indemnification of KMP debt |  |  | 470,000,000 | 5,900,000,000 |  |
Proceeds from sale of disposal group |  |  |  |  |  | 1,800,000,000
Business Acquisition, Purchase Price Allocation, Liabilities Assumed |  |  |  |  |  | $ 3,300,000,000

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