Consolidated Statements of Changes in Equity (Tables)

9 Months Ended

Sep. 30, 2013

Equity [Abstract]

Schedule of Changes in Equity

EME's changes in equity for the nine months ended September 30, 2013 consisted of the following:

	Edison Mission Energy Shareholder's Equity
(in millions)	Common Stock		Additional Paid-in Capital		Retained Deficit			AOCI			Non- controlling Interests			Total Equity
Balance at December 31, 2012	$	64	$	1,095	$	(577	)	$	(138	)	$	288		$	732
Net income (loss)	—		—		(635		)	—			21			(614		)
OCI, net of tax	—		—		—			29			—			29
Payments to EIX for stock purchases related to stock-based compensation	—		—		(13		)	—			—			(13		)
Cash contribution from EIX1	—		6		—			—			—			6
Non-cash contribution from EIX1	—		32		—			—			—			32
Excess tax benefits related to stock option exercises	—		2		—			—			—			2
Other stock transactions, net	—		2		—			—			—			2
Contributions from noncontrolling interests2	—		—		—			—			94			94
Distributions to noncontrolling interests	—		—		—			—			(11		)	(11		)
Balance at September 30, 2013	$	64	$	1,137	$	(1,225	)	$	(109	)	$	392		$	259

¹  During 2013, EME received contributions from EIX related to the tax-allocation agreements. For further information, see Note 7—Income Taxes—EME—Effective Tax Rate.

²  Funds contributed by third-party investors to Capistrano Wind Partners. For further information, see Note 3—Variable Interest Entities—Projects or Entities that are Consolidated—Capistrano Wind Partners.

EME's changes in equity for the nine months ended September 30, 2012 consisted of the following:

	Edison Mission Energy Shareholder's Equity
(in millions)	Common Stock		Additional Paid-in Capital			Retained Earnings			AOCI			Non- controlling Interests			Total Equity
Balance at December 31, 2011	$	64	$	1,327		$	365		$	(94	)	$	2		$	1,664
Net income (loss)	—		—			(360		)	—			12			(348		)
OCI, net of tax	—		—			—			(34		)	—			(34		)
Payments to EIX for stock purchases related to stock-based compensation	—		—			(14		)	—			—			(14		)
Excess tax benefits related to stock option exercises	—		3			—			—			—			3
Other stock transactions, net	—		4			—			—			—			4
Contributions from noncontrolling interests1	—		—			—			—			242			242
Distributions to noncontrolling interests	—		—			—			—			(14		)	(14		)
Transfers of assets to Capistrano Wind Partners2	—		(21		)	—			—			—			(21		)
Balance at September 30, 2012	$	64	$	1,313		$	(9	)	$	(128	)	$	242		$	1,482

¹  Funds contributed by third-party investors to Capistrano Wind Partners. For further information, see Note 3—Variable Interest Entities—Projects or Entities that are Consolidated—Capistrano Wind Partners.

²  Additional paid in capital was reduced by $21 million due to a new tax basis in the assets transferred to Capistrano Wind Partners.