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Debt (Tables) | 3 Months Ended
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Mar. 31, 2013
Debt Disclosure [Abstract] |
Schedule of preferred share distributions [Table Text Block] | Kinder Morgan G.P., Inc. Preferred Shares On February 19, 2013, Kinder Morgan G.P., Inc. paid a quarterly cash distribution on its Series A Fixed-to-Floating Rate Term Cumulative Preferred Stock of $10.638 per share to shareholders of record as of January 31, 2013. On April 17, 2013, Kinder Morgan G.P., Inc.’s board of directors declared a quarterly cash distribution on its Series A Fixed-to-Floating Rate Term Cumulative Preferred Stock of $10.469 per share payable on May 20, 2013 to shareholders of record as of April 29, 2
Schedule of Debt | The following table summarizes the carrying value of our outstanding debt, excluding debt fair value adjustments (in millions):
| March 31, 2013 |  | December 31, 2012
Current portion of debt(a) | $ | 2,876 |  |  | $ | 2,401 |
Long-term portion of debt | 29,065 |  |  | 29,409 |
Carrying value of debt(b) | $ | 31,941 |  |  | $ | 31,810 |
________
(a) | As of March 31, 2013 and December 31, 2012, balances include (i) KMI’s credit facility borrowings of $1,274 million and $1,035 million, respectively; (ii) KMP’s commercial paper borrowings of $595 million and $621 million, respectively; and (iii) $160 million and $288 million of letter of credit facilities, respectively.
(b) | Excludes debt fair value adjustments. As of March 31, 2013 and December 31, 2012, our “Debt fair value adjustments” increased our debt balances by $2,449 million and $2,591 million, respectively. In addition to all unamortized debt discount/premium amounts and purchase accounting on our debt balances, our debt fair value adjustments also include amounts associated with the offsetting entry for hedged debt and any unamortized portion of proceeds received from the early termination of interest rate swap agreements. For further information about our debt fair value adjustments, see Note 5 “Risk Management-Fair Value of Derivative Contracts.”
Schedule of Changes in Financing Obilgations | Changes in our and our subsidiaries outstanding debt, excluding debt fair value adjustments, during the three months ended March 31, 2013 are summarized as follows (in millions):
Debt Borrowings |  | Interest rate |  | Increase / (decrease) |  | Cash received / (paid)
Issuances and assumptions |  |  |  |  |  |
KMI |  |  |  |  |  |
KMI credit facility |  | variable |  | $ | 520 |  |  | $ | 520 |
KMP and subsidiaries |  |  |  |  |  |
Senior notes due September 1, 2023(a) |  | 3.50% |  | 600 |  |  | 598 |
Senior notes due March 1, 2043(a) |  | 5.00% |  | 400 |  |  | 398 |
Commercial paper |  | variable |  | 1,689 |  |  | 1,689 |
Kinder Morgan Altamont LLC credit facility due August 2, 2014(b) |  | variable |  | 14 |  |  | 14 |
Total increases in debt |  |  |  | $ | 3,223 |  |  | $ | 3,219 |
Repayments and other |  |  |  |  |  |
KMI |  |  |  |  |  |
Senior secured term loan credit facility, due May 24, 2015 |  | variable |  | $ | (947 | ) |  | $ | (947 | )
KMI credit facility |  | variable |  | (281 | ) |  | (281 | )
EPC Building LLC promissory note 3.967%, due 2035 |  | 3.967% |  | (1 | ) |  | (1 | )
El Paso LLC credit facility |  | variable |  | (50 | ) |  | (50 | )
EP preferred securities, due March 31, 2028 |  | 4.75% |  | (3 | ) |  | (2 | )
KMP and subsidiaries |  |  |  |  |  |
Commercial paper |  | variable |  | (1,715 | ) |  | (1,715 | )
Kinder Morgan Altamont LLC credit facility due August 2, 2014(b) |  | variable |  | (92 | ) |  | (92 | )
Kinder Morgan Texas Pipeline, L.P. - senior notes due January 2, 2014 |  | 5.23% |  | (2 | ) |  | (2 | )
EPB and subsidiaries |  |  |  |  |  |
Other |  | various |  | (1 | ) |  | (1 | )
Total decreases in debt |  |  |  | $ | (3,092 | ) |  | $ | (3,091 | )
________
(a) | On February 28, 2013, KMP completed a public offering of two separate series of senior notes. KMP received proceeds, after deducting the underwriting discount, of $991 million, and used the proceeds to pay a portion of the purchase price for its drop-down transaction and to reduce the borrowings under its commercial paper program.
(b) | KMP’s subsidiary, Kinder Morgan Altamont LLC maintains an unsecured revolving bank credit facility that matures on August 2, 2014. Effective March 31, 2013, Kinder Morgan Altamont LLC reduced the amount available for borrowing under this credit facility from $95 million to approximately $1 million. In addition, in February 2013, prior to KMP’s March 1, 2013 acquisition date, KMP and KMI each contributed $45 million to repay the outstanding $90 million borrowings under this credit facility, and following this repayment, Kinder Morgan Altamont LLC had no outstanding debt.

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