| Schedule of Debt [Table Text Block] |
The following table provides detail on the principal amount of our outstanding debt balances. The table amounts exclude all debt fair value adjustments, including debt discounts, premiums and issuance costs (in millions): | | | | | | | | | | | | March 31, 2016 | | December 31, 2015 | KMI | | | | | Unsecured term loan facility, variable rate, due January 26, 2019(a) | | $ | 1,000 |
| | $ | — |
| Senior notes, 1.50% through 8.25%, due 2016 through 2098(b) | | 13,344 |
| | 13,346 |
| Credit facility due November 26, 2019(c) | | 900 |
| | — |
| Commercial paper borrowings(c) | | 48 |
| | — |
| KMP | | | | | Senior notes, 2.65% through 9.00%, due 2016 through 2044 | | 19,485 |
| | 19,985 |
| TGP senior notes, 7.00% through 8.375%, due 2016 through 2037(a) | | 1,540 |
| | 1,790 |
| EPNG senior notes, 5.95% through 8.625%, due 2017 through 2032 | | 1,115 |
| | 1,115 |
| Copano senior notes, 7.125%, due April 1, 2021 | | 332 |
| | 332 |
| CIG senior notes, 6.85%, due June 15, 2037 | | 100 |
| | 100 |
| SNG notes, 4.40% through 8.00%, due 2017 through 2032 | | 1,211 |
| | 1,211 |
| Other Subsidiary Borrowings (as obligor) | | | | | Kinder Morgan Finance Company, LLC, senior notes, 5.70% through 6.40%, due 2016 through 2036(a) | | 786 |
| | 1,636 |
| Hiland Partners Holdings LLC, senior notes, 5.50% and 7.25%, due 2020 and 2022 | | 974 |
| | 974 |
| EPC Building, LLC, promissory note, 3.967%, due 2016 through 2035 | | 440 |
| | 443 |
| Trust I preferred securities, 4.75%, due March 31, 2028 | | 221 |
| | 221 |
| KMGP, $1,000 Liquidation Value Series A Fixed-to-Floating Rate Term Cumulative Preferred Stock | | 100 |
| | 100 |
| Other miscellaneous debt | | 299 |
| | 300 |
| Total debt – KMI and Subsidiaries | | 41,895 |
| | 41,553 |
| Less: Current portion of debt(a)(d) | | 1,702 |
| | 821 |
| Total long-term debt – KMI and Subsidiaries(e) | | $ | 40,193 |
| | $ | 40,732 |
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_______ | | (a) | On January 26, 2016, we entered into a $1.0 billion three-year unsecured term loan facility with a variable interest rate, which is determined in the same manner as interest on our revolving credit facility borrowings. In January 2016, we repaid $850 million of maturing 5.70% senior notes, and in February 2016, we repaid $250 million of maturing 8.00% senior notes primarily using proceeds from the three-year term loan. |
| | (b) | Amount includes senior notes that are denominated in Euros and have been converted and are respectively reported above at the March 31, 2016 exchange rate of 1.1380 U.S. dollars per Euro and the December 31, 2015 exchange rate of 1.0862 U.S. dollars per Euro. For the three months ended March 31, 2016, our debt increased by $65 million as a result of the change in the exchange rate of U.S. dollars per Euro. At the time of issuance, we entered into cross-currency swap agreements associated with these senior notes, effectively converting these Euro-denominated senior notes to U.S. dollars (see Note 5 “Risk Management—Foreign Currency Risk Management”). |
| | (c) | As of March 31, 2016, the weighted average interest rate on our credit facility borrowings, including commercial paper borrowings, was 1.86%. |
| | (d) | Amounts include outstanding credit facility borrowings, commercial paper borrowings and other debt maturing within 12 months (see “—Current Portion of Debt” below). |
| | (e) | Excludes our “Debt fair value adjustments” which, as of March 31, 2016 and December 31, 2015, increased our combined debt balances by $1,912 million and $1,674 million, respectively. In addition to all unamortized debt discount/premium amounts, debt issuance costs 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. |
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