Reportable Segments Reportable Segments (Details 2) (USD $) In Millions, unless otherwise specified	9 Months Ended																	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Natural Gas Pipelines [Member]	Dec. 31, 2013 Natural Gas Pipelines [Member]	Sep. 30, 2014 CO2 [Member]	Dec. 31, 2013 CO2 [Member]	Sep. 30, 2014 Products Pipelines [Member]	Dec. 31, 2013 Products Pipelines [Member]	Sep. 30, 2014 Terminals [Member]	Dec. 31, 2013 Terminals [Member]	Sep. 30, 2014 Kinder Morgan Canada [Member]	Dec. 31, 2013 Kinder Morgan Canada [Member]	Sep. 30, 2014 Operating Segments [Member]	Dec. 31, 2013 Operating Segments [Member]	Sep. 30, 2014 Corporate Segment [Member]	Dec. 31, 2013 Corporate Segment [Member]	Sep. 30, 2014 Kinder Morgan Energy Partners, L.P. [Member] Other Nonoperating Income (Expense) [Member] Kinder Morgan Louisiana Pipeline [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Gain (Loss) on Contract Termination	$ 0	$ (96)																$ 198
Total Assets	$ 45,340		$ 42,764	$ 26,140	$ 25,721	$ 3,224	$ 2,954	$ 5,906	$ 5,488	$ 7,727	$ 6,124	$ 1,620	$ 1,678	$ 44,617	$ 41,965	$ 723	$ 799