CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Operating Revenues	$ 406	$ 536	$ 849	$ 1,086
Operating Expenses
Fuel	215	174	421	356
Plant operations	172	240	328	432
Plant operating leases	40	44	78	88
Depreciation and amortization	67	79	135	151
Loss on disposal and asset impairments	12	8	26	8
Administrative and general	48	45	94	88
Total operating expenses	554	590	1,082	1,123
Operating loss	(148)	(54)	(233)	(37)
Other Income (Expense)
Equity in income from unconsolidated affiliates	18	17	17	12
Dividend income	11	27	11	28
Interest income	0	0	0	1
Interest expense	(84)	(80)	(170)	(160)
Other income, net	0	2	0	5
Total other expense	(55)	(34)	(142)	(114)
Loss from continuing operations before income taxes	(203)	(88)	(375)	(151)
Benefit for income taxes	(99)	(57)	(190)	(102)
Loss from Continuing Operations	(104)	(31)	(185)	(49)
Loss from Operations of Discontinued Subsidiaries, net of tax (Note 13)	0	(1)	(1)	(3)
Net Loss	(104)	(32)	(186)	(52)
Net Income Attributable to Noncontrolling Interests (Note 3)	(5)	0	(7)	0
Net Loss Attributable to Edison Mission Energy Common Shareholder	(109)	(32)	(193)	(52)
Amounts Attributable to Edison Mission Energy Common Shareholder
Loss from continuing operations, net of tax	(109)	(31)	(192)	(49)
Loss from discontinued operations, net of tax	0	(1)	(1)	(3)
Net Loss Attributable to Edison Mission Energy Common Shareholder	$ (109)	$ (32)	$ (193)	$ (52)