Reportable Segments Revenues (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Revenues from external customers	$ 14,070	$ 9,973	$ 7,943
Natural Gas Pipelines [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	8,613	5,230	3,943
Natural Gas Pipelines [Member] | Intersegment Revenues [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	4	0	0
CO2 - KMP [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	1,857	1,677	1,434
Products Pipelines - KMP [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	1,853	1,370	914
Terminals - KMP [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	1,408	1,356	1,314
Terminals - KMP [Member] | Intersegment Revenues [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	2	3	1
Kinder Morgan Canada - KMP [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	302	311	302
Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	1	(6)	0
Total segments [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	14,040	9,941	7,908
Unallocated [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	36	35	36
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	$ (6)	$ (3)	$ (1)