v2.4.0.6

Acquisitions and Divestitures KMI Acquisition of El Paso Corporation (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified | 3 Months Ended |  | 1 Months Ended |
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Mar. 31, 2012 | Mar. 31, 2012 Common Class A [Member] | Mar. 31, 2012 Class P [Member] | May 25, 2012 KMI's Acquisition of El Paso Corporation [Member] | May 25, 2012 KMI's Acquisition of El Paso Corporation [Member] Class P [Member] | May 24, 2012 KMI's Acquisition of El Paso Corporation [Member] Class P [Member]
Business Acquisition [Line Items] |  |  |  |  |  |
Business Acquisition, Cost of Acquired Entity, Equity Interests Issued and Issuable |  |  |  |  |  | $ 10,600,000,000
Revenue from continuing operations | 2,625,000,000 |  |  |  |  |
(Loss) income from continuing operations | 424,000,000 |  |  |  |  |
Income from discontinued operations | (357,000,000) |  |  |  |  |
Net income attributable to Kinder Morgan, Inc. | 95,000,000 |  |  |  |  |
Basic and diluted net income from continuing operations per share |  | $ 0.07 | $ 0.09 |  |  |
Loss on remeasurement of assets of disposal group to fair value, net of tax | (428,000,000) |  |  |  |  |
Business Acquisition, Cost of Acquired Entity, Cash Paid, Excluding Debt Assumed |  |  |  | 23,000,000,000 |  |
Business Acquisition, Cost of Acquired Entity, Cash Paid |  |  |  | 11,600,000,000 |  |
Share issued (in shares) |  |  |  |  | 330 |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  | 505 |  |
Class of Warrant or Right, Term |  |  |  | 5 years |  |
Warrants and Rights Outstanding |  |  |  | $ 863,000,000 |  |

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