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General (Details) (USD $)
9 Months Ended 9 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended
Sep. 30, 2014
segment
mi
Mar. 01, 2013
EPNG and EP Midstream [Member]
Mar. 01, 2013
EPNG [Member]
Aug. 01, 2012
El Paso Natural Gas Company and El Paso Midstream Investment Company LLC [Member]
Sep. 30, 2014
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Kinder Morgan, Inc. [Member]
Kinder Morgan Energy Partners, L.P. [Member]
Sep. 30, 2014
El Paso LLC [Member]
Sep. 30, 2014
Kinder Morgan Management, LLC [Member]
Sep. 30, 2014
Kinder Morgan Energy Partners, L.P. [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Replacement Facility [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Bridge Loan [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Federal Funds Effective Swap Rate [Member]
Bridge Loan [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Eurodollar [Member]
Bridge Loan [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Minimum [Member]
London Interbank Offered Rate (LIBOR) [Member]
Bridge Loan [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Minimum [Member]
Eurodollar [Member]
Bridge Loan [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Maximum [Member]
London Interbank Offered Rate (LIBOR) [Member]
Bridge Loan [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Maximum [Member]
Eurodollar [Member]
Bridge Loan [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Bridge Loan [Member]
Kinder Morgan, Inc. [Member]
Sep. 19, 2014
Bridge Loan [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Revolving Credit Facility [Member]
Replacement Facility contingent on Merger Transactions [Member]
Kinder Morgan, Inc. [Member]
Sep. 19, 2014
Revolving Credit Facility [Member]
Replacement Facility contingent on Merger Transactions [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Revolving Credit Facility [Member]
Replacement Facility contingent on Merger Transactions [Member]
Federal Funds Effective Swap Rate [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Revolving Credit Facility [Member]
Replacement Facility contingent on Merger Transactions [Member]
Eurodollar [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Revolving Credit Facility [Member]
Replacement Facility contingent on Merger Transactions [Member]
Minimum [Member]
London Interbank Offered Rate (LIBOR) [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Revolving Credit Facility [Member]
Replacement Facility contingent on Merger Transactions [Member]
Minimum [Member]
Eurodollar [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Revolving Credit Facility [Member]
Replacement Facility contingent on Merger Transactions [Member]
Maximum [Member]
London Interbank Offered Rate (LIBOR) [Member]
Kinder Morgan, Inc. [Member]
Sep. 30, 2014
Revolving Credit Facility [Member]
Replacement Facility contingent on Merger Transactions [Member]
Maximum [Member]
Eurodollar [Member]
Kinder Morgan, Inc. [Member]
Sep. 11, 2014
Scenario Number One [Member]
Sep. 11, 2014
Scenario Number Two [Member]
Sep. 11, 2014
Scenario Number Three [Member]
Schedule of Equity Method Investments [Line Items]                                                            
Business Combination Cash Consideration For Transferred Equity Interest                                                       $ 10.77 $ 91.72  
Miles of pipe 52,000                                                          
Number of pipeline terminals owned interest in and or operated 180                                                          
Number of Reportable Segments 5                                                          
Preferred Stock, Shares Outstanding         100,000                                                  
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest               28.80% 11.30%                                          
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest             39.30%                                              
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest             2.00%                                              
Business Acquisition, Percentage of Voting Interests Acquired   50.00%                                                        
Business Acquisition, Transaction Costs     $ 1,700,000,000                                                      
Ownership interest       50.00%                                                    
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable,Unit for Unit Exchange Ratio                                                       $ 2.1931   $ 2.4849
Liabilities Subject to Compromise, Early Contract Termination Fees           817,000,000                                                
Line of Credit Facility, Current Borrowing Capacity                                         4,000,000,000                  
Line of Credit Facility, Maximum Borrowing Capacity                                         5,000,000,000                  
Debt Instrument, Basis Spread on Variable Rate                       0.50% 1.00% 1.25%   1.75%           0.50% 1.00% 1.125%   2.00%        
Debt Instrument, Incremental margin on basis spread on variable rate                             0.25%   0.75%               0.125%   1.00%      
Debt to EBITDA Ratio                   650.00% 650.00%                                      
Debt to EBITDA Ratio in four years                   625.00%                                        
Debt to EBITDA Ratio in five years                   600.00%                                        
Debt Instrument, Interest Rate, Increase (Decrease)                     0.25%                                      
Bridge Loan                                     $ 5,000,000,000                      
Debt Instrument, Term                                   364 days   5 years