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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Kinder Morgan, Inc.    
Change in fair value of derivatives utilized for hedging purposes, tax benefit attributable to KMI $ 11 $ 6
Reclassification of change in fair value of derivatives to net income, tax expense attributable to KMI (3) 1
Foreign currency translation adjustments, tax expense attributable to KMI 14 7
Adjustments to pension and other postretirement benefit liabilities, tax benefit attributable to KMI 0 0
Noncontrolling Interests    
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax Attributable To Noncontrolling Interests 3 3
Other Comprehensive Income Loss Reclassification Adjustment From AOCI On Derivatives Tax Attributable To Noncontrolling Interests (1) 0
Foreign currency translation adjustments, tax expense attributable to noncontrolling interests 4 2
Adjustments to pension and other postretirement benefit liabilities, tax benefit attributable to noncontrolling interests 0 0
Total    
Change in fair value of derivatives utilized for hedging purposes, tax benefit total 14 9
Reclassification of change in fair value of derivatives to net income, tax expense total (4) 1
Foreign currency translation adjustments, tax expense total 18 9
Adjustments to pension and other postretirement benefit plan liabilities, tax benefit total $ 0 $ 0