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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Statement of Comprehensive Income [Abstract]      
Net income $ 2,486 $ 2,625 $ 1,850
Other comprehensive income (loss), net of tax      
Net unrealized gain (loss) from derivative instruments (net of taxes of $(47), $92, and $131, respectively) 155 (312) (432)
Reclassification into earnings of net derivative instruments loss (gain) to net income (net of taxes of $12, $(95), and $(83), respectively) (35) 320 273
Benefit plan adjustments (net of taxes of $(20), $(1), and $(47), respectively) 65 1 155
Total other comprehensive income (loss) 185 9 (4)
Comprehensive income 2,671 2,634 1,846
Comprehensive income attributable to noncontrolling interests (95) (77) (66)
Comprehensive income attributable to KMI $ 2,576 $ 2,557 $ 1,780