v2.4.0.6
Guarantee of Securities of Subsidiaries Balance Sheet (Details) (USD $)
 3 Months Ended 3 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2012
Dec. 31, 2011
Mar. 31, 2013
Consolidated Entity Excluding Variable Interest Entities (VIE) [Member]
Dec. 31, 2012
Consolidated Entity Excluding Variable Interest Entities (VIE) [Member]
Mar. 31, 2013
Consolidation, Eliminations [Member]
Dec. 31, 2012
Consolidation, Eliminations [Member]
Mar. 31, 2013
Non-Guarantor Subsidiaries [Member]
Dec. 31, 2012
Non-Guarantor Subsidiaries [Member]
Mar. 31, 2013
Subsidiary Issuer [Member]
Dec. 31, 2012
Subsidiary Issuer [Member]
Mar. 31, 2013
Guarantor Subsidiaries [Member]
Dec. 31, 2012
Guarantor Subsidiaries [Member]
Mar. 31, 2013
Parent Company [Member]
Dec. 31, 2012
Parent Company [Member]
Mar. 31, 2013
El Paso Corporation [Member]
Mar. 31, 2013
Kinder Morgan, Inc. [Member]
Dec. 31, 2012
Kinder Morgan, Inc. [Member]
Mar. 31, 2013
Guarantor Subsidiary: El Paso Holdco, and Subsidiary Issuers: El Passos LLC, Finance Corp [Member]
Kinder Morgan, Inc. [Member]
Guarantor Obligations [Line Items]                                        
Indemnified by parent subsidiary debt                                 $ 3,900,000,000      
Cash and Cash Equivalents, at Carrying Value 1,106,000,000 714,000,000     1,106,000,000 714,000,000 0 0 988,000,000 666,000,000 0 45,000,000 0 0 118,000,000 3,000,000   164,000,000 71,000,000  
Other Assets, Current 308,000,000 353,000,000     2,580,000,000 2,960,000,000 (6,148,000,000) (6,416,000,000) 8,036,000,000 8,598,000,000 1,000,000 0 7,000,000 0 684,000,000 778,000,000        
Property, plant and equipment, net 31,201,000,000 30,996,000,000     31,201,000,000 30,996,000,000 0 0 31,184,000,000 30,988,000,000 0 0 0 0 17,000,000 8,000,000   2,717,000,000 2,735,000,000  
Long-term Investments 5,773,000,000 5,804,000,000     5,773,000,000 5,804,000,000 (38,569,000,000) (40,421,000,000) 5,596,000,000 5,645,000,000 7,574,000,000 8,504,000,000 10,682,000,000 12,025,000,000 20,490,000,000 20,051,000,000        
Goodwill 23,569,000,000 23,572,000,000     23,569,000,000 23,572,000,000 0 0 15,567,000,000 15,572,000,000 8,002,000,000 8,000,000,000 0 0 0 0   18,135,000,000 18,133,000,000  
Deferred charges and other assets 2,310,000,000 2,259,000,000     4,079,000,000 4,139,000,000 (3,461,000,000) (4,831,000,000) 5,828,000,000 6,007,000,000 1,207,000,000 1,205,000,000 0 0 505,000,000 1,758,000,000        
Assets 68,308,000,000 68,185,000,000     68,308,000,000 68,185,000,000 (48,178,000,000) (51,668,000,000) 67,199,000,000 67,476,000,000 16,784,000,000 17,754,000,000 10,689,000,000 12,025,000,000 21,814,000,000 22,598,000,000        
Long-term Debt, Current Maturities 2,876,000,000 2,401,000,000     2,876,000,000 2,401,000,000 0 0 1,437,000,000 1,251,000,000 165,000,000 115,000,000 0 0 1,274,000,000 1,035,000,000   1,585,000,000 1,153,000,000  
Other Liabilities, Current         2,706,000,000 2,808,000,000 (6,148,000,000) (6,416,000,000) 2,575,000,000 2,628,000,000 6,211,000,000 6,162,000,000 0 273,000,000 68,000,000 161,000,000        
Total long-term financing obligations, less current maturities 31,514,000,000 32,000,000,000     31,514,000,000 32,000,000,000 (2,279,000,000) (3,650,000,000) 25,376,000,000 26,109,000,000 4,301,000,000 4,413,000,000 0 296,000,000 4,116,000,000 4,832,000,000        
Deferred Tax Liabilities, Net, Noncurrent 4,219,000,000 4,033,000,000     4,219,000,000 4,033,000,000 (1,182,000,000) (1,181,000,000) 3,239,000,000 3,097,000,000 0 0 23,000,000 22,000,000 2,139,000,000 2,095,000,000        
Other Liabilities, Noncurrent 2,569,000,000 2,711,000,000     2,685,000,000 2,844,000,000 0 0 1,970,000,000 2,062,000,000 173,000,000 172,000,000 0 0 542,000,000 610,000,000        
Liabilities 44,000,000,000 44,086,000,000     44,000,000,000 44,086,000,000 (9,609,000,000) (11,247,000,000) 34,597,000,000 35,147,000,000 10,850,000,000 10,862,000,000 23,000,000 591,000,000 8,139,000,000 8,733,000,000        
Accumulated Other Comprehensive Income (Loss), Net of Tax (157,000,000) (119,000,000)     (157,000,000) (119,000,000) 58,000,000 0 (8,000,000) 28,000,000 (25,000,000) (14,000,000) (25,000,000) (14,000,000) (157,000,000) (119,000,000)        
Other stockholder's equity         13,832,000,000 13,984,000,000 (38,627,000,000) (40,421,000,000) 21,977,000,000 22,067,000,000 5,959,000,000 6,906,000,000 10,691,000,000 11,448,000,000 13,832,000,000 13,984,000,000        
Stockholders' Equity Attributable to Parent 13,675,000,000 13,865,000,000     13,675,000,000 13,865,000,000 (38,569,000,000) (40,421,000,000) 21,969,000,000 22,095,000,000 5,934,000,000 6,892,000,000 10,666,000,000 11,434,000,000 13,675,000,000 13,865,000,000        
Stockholders' Equity Attributable to Noncontrolling Interest 10,633,000,000 10,234,000,000     10,633,000,000 10,234,000,000 0 0 10,633,000,000 10,234,000,000 0 0 0 0 0 0        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest 24,308,000,000 24,099,000,000 8,122,000,000 8,568,000,000 24,308,000,000 24,099,000,000 (38,569,000,000) (40,421,000,000) 32,602,000,000 32,329,000,000 5,934,000,000 6,892,000,000 10,666,000,000 11,434,000,000 13,675,000,000 13,865,000,000        
Liabilities and Equity $ 68,308,000,000 $ 68,185,000,000     $ 68,308,000,000 $ 68,185,000,000 $ (48,178,000,000) $ (51,668,000,000) $ 67,199,000,000 $ 67,476,000,000 $ 16,784,000,000 $ 17,754,000,000 $ 10,689,000,000 $ 12,025,000,000 $ 21,814,000,000 $ 22,598,000,000        
Ownership Percentage of Subsidiary                                       100.00%