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
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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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