CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Operating revenues	$ 315	$ 324	$ 622	$ 667
Operating Expenses
Fuel	141	148	282	270
Plant operations	109	147	207	285
Plant operating leases	19	18	37	37
Depreciation and amortization	71	67	138	135
Loss on disposal and asset retirements	0	1	0	4
Administrative and general	38	43	68	84
Total operating expenses	378	424	732	815
Operating loss	(63)	(100)	(110)	(148)
Other Income (Expense)
Equity in income from unconsolidated affiliates	4	18	12	17
Dividend income	0	11	0	11
Interest income	1	0	1	0
Interest expense	(22)	(85)	(39)	(170)
Total other income (expense)	(17)	(56)	(26)	(142)
Loss from continuing operations before reorganization items and income taxes	(80)	(156)	(136)	(290)
Reorganization items, net	47	0	75	0
Provision (benefit) for income taxes	(25)	(81)	(28)	(157)
Loss from Continuing Operations	(102)	(75)	(183)	(133)
Income (Loss) from Operations of Discontinued Subsidiaries, net of tax (Note 13)	18	(29)	17	(53)
Net Loss	(84)	(104)	(166)	(186)
Net Income Attributable to Noncontrolling Interests (Note 3)	(7)	(5)	(14)	(7)
Net Loss	(91)	(109)	(180)	(193)
Amounts Attributable to Edison Mission Energy Common Shareholder
Loss from continuing operations, net of tax	(109)	(80)	(197)	(140)
Income (Loss) from discontinued operations, net of tax	18	(29)	17	(53)
Net Loss Attributable to Edison Mission Energy Common Shareholder	(91)	(109)	(180)	(193)
Midwest Generation LLC
Operating revenues	203	213	382	446
Operating Expenses
Fuel	133	143	267	260
Plant operations	74	120	141	229
Depreciation and amortization	30	32	63	64
Loss on disposal and asset retirements	0	1	0	4
Administrative and general	6	5	11	10
Total operating expenses	243	301	482	567
Operating loss	(40)	(88)	(100)	(121)
Other Income (Expense)
Interest and other income	0	27	0	55
Interest expense	(7)	(8)	(13)	(17)
Total other income (expense)	(7)	19	(13)	38
Loss from continuing operations before reorganization items and income taxes	(47)	(69)	(113)	(83)
Reorganization items, net	26	0	34	0
Provision (benefit) for income taxes	1	(27)	1	(32)
Net Loss	(74)	(42)	(148)	(51)
Net Loss	(74)	(42)	(148)	(51)
Amounts Attributable to Edison Mission Energy Common Shareholder
Net Loss Attributable to Edison Mission Energy Common Shareholder	$ (74)	$ (42)	$ (148)	$ (51)