v2.4.0.6

Stockholders Equity Common Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2013 Unit | Mar. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2011
Class of Stock [Line Items] |  |  |  |
Class of Warrant or Right, Outstanding | 422,962,524 |  | 439,847,329 |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 24,308 | $ 8,122 | $ 24,099 | $ 8,568
Dividends Per Common Share Declared (in dollars per share) | $ 0.38 | $ 0.32 |  |
Common Stock, Dividends, Per Share, Cash Paid | $ 0.37 | $ 0.31 |  |
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition | 5 |  |  |
Impact Of Equity Transactions | (8) | (3) |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 656 | (73) |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | (375) | (251) |  |
Minority Interest Increase From Contributions From Noncontrolling Interest Holders | 465 | 132 |  |
Partners' Capital Account, Distributions | (384) | (220) |  |
Stockholders' Equity, Other | 0 |  |  |
Other Comprehensive Income (Loss), Net of Tax | (71) | (34) |  |
Number of Warrants Repurchased | (16,969,361) |  |  |
Payments for Repurchase of Warrants | 80 | 0 |  |
Stock Issued During Period, Value, Conversion of Convertible Securities | 1 |  |  |
Debt Instrument, Convertible, Conversion Ratio | 1 |  |  |
Warrant [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock Repurchase Program, Authorized Amount | 250 |  |  |
Class P [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Balance at (in shares) | 1,035,668,596 | 170,921,140 |  |
Restriced shares vested (in shares) | 7,905 | 1,465 |  |
Balance at (in shares) | 1,035,731,820 | 170,922,605 |  |
Common Class A [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Balance at (in shares) |  | 535,972,387,000,000 |  |
Restriced shares vested (in shares) |  | 0 |  |
Balance at (in shares) |  | 535,972,387,000,000 |  |
Common Class B [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Balance at (in shares) |  | 94,132,596,000,000 |  |
Restriced shares vested (in shares) |  | 0 |  |
Balance at (in shares) |  | 94,132,596,000,000 |  |
Common Class C [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Balance at (in shares) |  | 2,318,258,000,000 |  |
Restriced shares vested (in shares) |  | 0 |  |
Balance at (in shares) |  | 2,318,258,000,000 |  |
KMI's Acquisition of El Paso Corporation [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | 40 |  |  |
EP Trust I Preffered [Member] | Class P [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Shares converted (in shares) | 55,319 |  |  |
Subsequent Event [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Dividends Per Common Share Declared (in dollars per share) | $ 0.38 |  |  |
Additional Paid-in Capital [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 14,857 | 3,438 | 14,917 | 3,431
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition | 5 | 3 |  |
Impact Of Equity Transactions | 14 | 4 |  |
Payments for Repurchase of Warrants | 80 |  |  |
Stock Issued During Period, Value, Conversion of Convertible Securities | 1 |  |  |
Retained Earnings [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | (1,035) | (202) | (943) | (3)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 292 | 21 |  |
Partners' Capital Account, Distributions | (384) | (220) |  |
Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | (157) | (128) | (119) | (115)
Other Comprehensive Income (Loss), Net of Tax | (38) | (13) |  |
Parent [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 13,675 | 3,116 | 13,865 | 3,321
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition | 5 | 3 |  |
Impact Of Equity Transactions | 14 | 4 |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 292 | 21 |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 0 | 0 |  |
Minority Interest Increase From Contributions From Noncontrolling Interest Holders | 0 | 0 |  |
Partners' Capital Account, Distributions | (384) | (220) |  |
Stockholders' Equity, Other | 0 |  |  |
Other Comprehensive Income (Loss), Net of Tax | (38) | (13) |  |
Payments for Repurchase of Warrants | 80 |  |  |
Stock Issued During Period, Value, Conversion of Convertible Securities | 1 |  |  |
Noncontrolling Interest [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 10,633 | 5,006 | 10,234 | 5,247
Impact Of Equity Transactions | (22) | (7) |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 364 | (94) |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | (375) | (251) |  |
Minority Interest Increase From Contributions From Noncontrolling Interest Holders | 465 | 132 |  |
Other Comprehensive Income (Loss), Net of Tax | (33) | (21) |  |
Common Stock [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 10 | $ 8 | $ 10 | $ 8
Conversion of EP Trust I Preferred Securities [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock and Warrants Issued During Period Number of Warrants | 0 |  |  |

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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568740-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=18733213&loc=SL4590271-111686 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568447-111683 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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