CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012		Jun. 30, 2013	Jun. 30, 2012
Revenues
Natural gas sales	$ 942	$ 500	[1]	$ 1,677	$ 1,084	[1]
Services	1,170	890	[1]	2,358	1,651	[1]
Product sales and other	905	620	[1]	1,643	1,123	[1]
Total Revenues	3,017	2,010	[1]	5,678	3,858	[1]
Operating Costs, Expenses and Other
Cost of sales	1,248	633	[1]	2,205	1,213	[1]
Operations and maintenance	597	374	[1]	981	680	[1]
Depreciation, Depletion and Amortization	357	276	[1]	685	515	[1]
General and administrative	163	171	[1]	297	278	[1]
Taxes, other than income taxes	75	59	[1]	149	109	[1]
Other expense (income)	(24)	(20)	[1]	(24)	(20)	[1]
Total Operating Costs, Expenses and Other	2,416	1,493	[1]	4,293	2,775	[1]
Operating Income	601	517	[1]	1,385	1,083	[1]
Other Income (Expense)
Earnings from equity investments	74	68	[1]	157	133	[1]
Amortization of excess cost of equity investments	(2)	(2)	[1]	(4)	(4)	[1]
Interest expense, net	(214)	(156)	[1]	(413)	(291)	[1]
Gain on remeasurement of previously held equity interest in Eagle Ford Gathering to fair value	558	0	[1]	558	0	[1]
Gain on sale of investments in Express pipeline system	0	0	[1]	225	0	[1]
Other, net	19	9	[1]	23	10	[1]
Total Other Income (Expense)	435	(81)	[1]	546	(152)	[1]
Income from Continuing Operations Before Income Taxes	1,036	436	[1]	1,931	931	[1]
Income Tax (Expense) Benefit	(26)	(19)	[1]	(127)	(34)	[1]
Income from Continuing Operations	1,010	417	[1]	1,804	897	[1]
Discontinued operations (Note 1 and 2)
Income from operations of FTC Natural Gas Pipelines disposal group	0	48	[1]	0	98	[1]
Loss on remeasurement of FTC Natural Gas Pipelines disposal group to fair value	0	(327)	[1]	(2)	(649)	[1]
Income (Loss) from Discontinued Operations	0	(279)	[1]	(2)	(551)	[1]
Net Income	1,010	138	[1]	1,802	346	[1]
Net Income Attributable to Noncontrolling Interests	(10)	(6)	[1]	(19)	(8)	[1]
Net Income Attributable to Kinder Morgan Energy Partners, L.P.	1,000	132	[1]	1,783	338	[1]
Attributable to Kinder Morgan Energy Partners, L.P.:
Income from Continuing Operations	1,000	408	[1]	1,785	883	[1]
Pre-acquisition income from operations of drop-down asset group allocated to General Partner	0	21	[1]	(19)	21	[1]
Drop-down severance expenses allocated to General Partner	4	0	[1]	6	0	[1]
Less: General Partner’s Interest	(422)	(336)	[1]	(824)	(657)	[1]
Limited Partners’ Interest	582	93	[1]	948	247	[1]
Add: Limited Partners’ Interest in Discontinued Operations	0	(274)	[1]	(2)	(540)	[1]
Limited Partners’ Interest in Net Loss	582	(181)	[1]	946	(293)	[1]
Limited Partners’ Net Income (Loss) per Unit:
Income (Loss) from Continuing Operations	1.41	0.27	[1]	2.40	0.73	[1]
Income (Loss) from Discontinued Operations	0.00	(0.80)	[1]	(0.01)	(1.59)	[1]
Net Income (Loss) - Basic and Diluted	1.41	(0.53)	[1]	2.39	(0.86)	[1]
Weighted Average Number of Units Used in Computation of Limited Partners’ Net Income (Loss) per Unit	413	342	[1]	395	340	[1]
Per Unit Cash Distribution Declared (usd per share)	$ 1.32	$ 1.23	[1]	$ 2.62	$ 2.43	[1]
FTC Natural Gas Pipeline Disposal Group [Member]
Discontinued operations (Note 1 and 2)
Loss on remeasurement of FTC Natural Gas Pipelines disposal group to fair value	$ (558)

[1] Retrospectively adjusted as discussed in Note 1.