CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Operating revenues	$ 385	$ 340	$ 1,007	$ 1,007
Operating Expenses
Fuel	151	187	433	458
Plant operations	89	105	296	389
Plant operating leases	19	19	56	56
Depreciation and amortization	71	66	209	202
Asset impairments and other charges	462	1	462	5
Administrative and general	24	33	92	114
Total operating expenses	816	411	1,548	1,224
Operating income (loss)	(431)	(71)	(541)	(217)
Other Income (Expense)
Equity in income from unconsolidated affiliates	31	25	43	42
Dividend income	6	1	6	12
Interest expense, net	(26)	(82)	(64)	(252)
Loss on early extinguishment of debt	(3)	0	(3)	0
Other income (expense), net	3	1	3	1
Total other income (expense)	11	(55)	(15)	(197)
Income (Loss) from continuing operations before reorganization items and income taxes	(420)	(126)	(556)	(414)
Reorganization items, net	24	7	99	9
Provision (benefit) for income taxes	3	(47)	(25)	(204)
Income (Loss) from Continuing Operations	(447)	(86)	(630)	(219)
Income (Loss) from Operations of Discontinued Subsidiaries, net of tax (Note 13)	(1)	(76)	16	(129)
Net Income (loss)	(448)	(162)	(614)	(348)
Net Income (Loss) Attributable to Noncontrolling Interests (Note 3)	(7)	(5)	(21)	(12)
Net Income (Loss) Attributable to Edison Mission Energy Common Shareholder	(455)	(167)	(635)	(360)
Amounts Attributable to Edison Mission Energy Common Shareholder
Income (loss) from continuing operations, net of tax	(454)	(91)	(651)	(231)
Income (Loss) from discontinued operations, net of tax	(1)	(76)	16	(129)
Net Income (Loss) Attributable to Edison Mission Energy Common Shareholder	(455)	(167)	(635)	(360)
Midwest Generation LLC
Operating revenues	232	253	614	699
Operating Expenses
Fuel	146	183	413	443
Plant operations	49	73	190	302
Depreciation and amortization	32	32	95	96
Asset impairments and other charges	465	1	465	5
Administrative and general	3	3	14	13
Total operating expenses	695	292	1,177	859
Operating income (loss)	(463)	(39)	(563)	(160)
Other Income (Expense)
Interest and other income	0	28	0	83
Interest expense, net	(4)	(8)	(17)	(25)
Total other income (expense)	(4)	20	(17)	58
Income (Loss) from continuing operations before reorganization items and income taxes	(467)	(19)	(580)	(102)
Reorganization items, net	5	0	39	0
Provision (benefit) for income taxes	(1)	(7)	0	(39)
Net Income (loss)	(471)	(12)	(619)	(63)
Net Income (Loss) Attributable to Edison Mission Energy Common Shareholder	(471)	(12)	(619)	(63)
Amounts Attributable to Edison Mission Energy Common Shareholder
Net Income (Loss) Attributable to Edison Mission Energy Common Shareholder	$ (471)	$ (12)	$ (619)	$ (63)