Cash Portion of Settlement Payment

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- Definition

Amount of gain(loss) recognized in settlement

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- Definition

Liabilities For Joint Tax and Qualified Retirement Plans Resulting from Deconsolidation

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- Definition

Long Lived Assets Held For Abandonment Impairment Charge, After Tax Loss

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No definition available.

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Number of Installments

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Tax Attribute Including Interest, Installment One

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Tax Attribute Including Interest Installment Two

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- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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Discontinued Operations (Textual) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended			1 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Aug. 31, 2014 installment	Apr. 30, 2014	Apr. 01, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash Portion of Settlement Payment									$ 225eix_CashPortionofSettlementPayment	$ 0eix_CashPortionofSettlementPayment	$ 0eix_CashPortionofSettlementPayment
Income (loss) from discontinued operations, net of tax	39	(16)	184	(22)	37	(25)	12	12	185	36	(1,686)
Edison International
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment and other charges, after tax											1,300	1,300
Income (loss) from discontinued operations, net of tax									185	36	(1,686)
Tax Adjustments, Settlements, and Unusual Provisions									22
Edison Mission Energy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash Portion of Settlement Payment									225					225
Liabilities for tax and pension related to deconsolidation															342
Number of Installments									2				2
Installment one, tax attribute settlement													204
Installment two, tax attribute settlement													214
Pre-tax loss related to reorganization settlement									525
Homer City
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment and other charges, after tax											53
Discontinued Operations \| Edison Mission Energy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) Related to Reorganization Settlement									168
Internal Revenue Service (IRS) \| Tax Years 2003 to 2006 \| Discontinued Operations \| Edison Mission Energy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions									$ (39)