Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 132	$ 146
Cash and cash equivalents	132	146
Receivables, less allowances of $68 and $66 for uncollectible accounts at respective dates	790us-gaap_ReceivablesNetCurrent	838us-gaap_ReceivablesNetCurrent
Accrued unbilled revenue	632	596
Inventory	281us-gaap_InventoryNet	256us-gaap_InventoryNet
Derivative assets	102us-gaap_DerivativeAssetsCurrent	122us-gaap_DerivativeAssetsCurrent
Regulatory assets	1,254us-gaap_RegulatoryAssetsCurrent	538us-gaap_RegulatoryAssetsCurrent
Deferred income taxes	452us-gaap_DeferredTaxAssetsNetCurrent	421us-gaap_DeferredTaxAssetsNetCurrent
Other current assets	376us-gaap_OtherAssetsCurrent	395us-gaap_OtherAssetsCurrent
Total current assets	4,019us-gaap_AssetsCurrent	3,312us-gaap_AssetsCurrent
Nuclear decommissioning trusts	4,799	4,494
Other investments	207us-gaap_OtherLongTermInvestments	207us-gaap_OtherLongTermInvestments
Total investments	5,006eix_InvestmentsAndOtherAssets	4,701eix_InvestmentsAndOtherAssets
Utility property, plant and equipment, less accumulated depreciation and amortization of $8,132 and $7,493 at respective dates	32,859	30,379
Nonutility property, plant and equipment, less accumulated depreciation of $76 and $74 ($75 and $70 for SCE) at respective dates	122	76
Total property, plant and equipment	32,981us-gaap_PropertyPlantAndEquipmentNet	30,455us-gaap_PropertyPlantAndEquipmentNet
Derivative assets	219us-gaap_DerivativeAssetsNoncurrent	251us-gaap_DerivativeAssetsNoncurrent
Regulatory assets	7,612us-gaap_RegulatoryAssetsNoncurrent	7,241us-gaap_RegulatoryAssetsNoncurrent
Other long-term assets	349us-gaap_OtherAssetsNoncurrent	686us-gaap_OtherAssetsNoncurrent
Total long-term assets	8,180eix_LongTermAssetsNoncurrent	8,178eix_LongTermAssetsNoncurrent
Total assets	50,186us-gaap_Assets	46,646us-gaap_Assets
LIABILITIES AND EQUITY
Short-term debt	1,291us-gaap_ShortTermBorrowings	209us-gaap_ShortTermBorrowings
Current portion of long-term debt	504us-gaap_LongTermDebtCurrent	601us-gaap_LongTermDebtCurrent
Accounts payable	1,580us-gaap_AccountsPayableCurrent	1,407us-gaap_AccountsPayableCurrent
Accrued taxes	81us-gaap_TaxesPayableCurrent	358us-gaap_TaxesPayableCurrent
Customer deposits	221us-gaap_CustomerDepositsCurrent	201us-gaap_CustomerDepositsCurrent
Derivative liabilities	196us-gaap_DerivativeLiabilitiesCurrent	152us-gaap_DerivativeLiabilitiesCurrent
Regulatory liabilities	401us-gaap_RegulatoryLiabilityCurrent	767us-gaap_RegulatoryLiabilityCurrent
Other current liabilities	1,205us-gaap_OtherLiabilitiesCurrent	1,186us-gaap_OtherLiabilitiesCurrent
Total current liabilities	5,479us-gaap_LiabilitiesCurrent	4,881us-gaap_LiabilitiesCurrent
Long-term debt	10,234us-gaap_LongTermDebtNoncurrent	9,825us-gaap_LongTermDebtNoncurrent
Deferred income taxes and credits	7,313	7,346
Derivative liabilities	1,052us-gaap_DerivativeLiabilitiesNoncurrent	1,042us-gaap_DerivativeLiabilitiesNoncurrent
Pensions and benefits	2,155	1,378
Asset retirement obligations	2,821	3,418
Regulatory liabilities	5,889us-gaap_RegulatoryLiabilityNoncurrent	4,995us-gaap_RegulatoryLiabilityNoncurrent
Other deferred credits and other long-term liabilities	2,255us-gaap_OtherLiabilitiesNoncurrent	2,070us-gaap_OtherLiabilitiesNoncurrent
Total deferred credits and other liabilities	21,485	20,249
Total liabilities	37,198us-gaap_Liabilities	34,955us-gaap_Liabilities
Commitments and contingencies (Note 11)
Redeemable noncontrolling interest	6	0
Common stock, no par value (800,000,000 shares authorized; 325,811,206 shares issued and outstanding at each date) and (560,000 shares authorized; 434,888,104 shares issued and outstanding at each date for SCE)	2,445	2,403
Accumulated other comprehensive loss	(58)	(13)
Retained earnings	8,573	7,548
Total common shareholders' equity	10,960eix_CommonShareholdersEquity	9,938eix_CommonShareholdersEquity
Noncontrolling interests - preferred and preference stock of utility	2,022	1,753
Total equity	12,982	11,691
Total liabilities and equity	50,186	46,646
Southern California Edison
ASSETS
Cash and cash equivalents	38	54
Receivables, less allowances of $68 and $66 for uncollectible accounts at respective dates	749	813
Accrued unbilled revenue	632	596
Inventory	275	256
Derivative assets	102	122
Regulatory assets	1,254	538
Deferred income taxes	0	303
Other current assets	390	393
Total current assets	3,440	3,075
Nuclear decommissioning trusts	4,799	4,494
Other investments	158	140
Total investments	4,957	4,634
Utility property, plant and equipment, less accumulated depreciation and amortization of $8,132 and $7,493 at respective dates	32,859	30,379
Nonutility property, plant and equipment, less accumulated depreciation of $76 and $74 ($75 and $70 for SCE) at respective dates	69	72
Total property, plant and equipment	32,928	30,451
Derivative assets	219	251
Regulatory assets	7,612	7,241
Other long-term assets	300	398
Total long-term assets	8,131	7,890
Total assets	49,456	46,050
LIABILITIES AND EQUITY
Short-term debt	667	175
Current portion of long-term debt	300	600
Accounts payable	1,556	1,373
Accrued taxes	87	57
Customer deposits	221	201
Derivative liabilities	196	152
Regulatory liabilities	401	767
Deferred income taxes	209	39
Other current liabilities	1,183	1,034
Total current liabilities	4,820	4,398
Long-term debt	9,624	9,422
Deferred income taxes and credits	8,288	7,841
Derivative liabilities	1,052	1,042
Pensions and benefits	1,672	951
Asset retirement obligations	2,819	3,418
Regulatory liabilities	5,889	4,995
Other deferred credits and other long-term liabilities	2,010	1,845
Total deferred credits and other liabilities	21,730	20,092
Total liabilities	36,174	33,912
Commitments and contingencies (Note 11)
Common stock, no par value (800,000,000 shares authorized; 325,811,206 shares issued and outstanding at each date) and (560,000 shares authorized; 434,888,104 shares issued and outstanding at each date for SCE)	2,168	2,168
Additional paid-in capital	618	592
Accumulated other comprehensive loss	(28)	(11)
Retained earnings	8,454	7,594
Total common shareholders' equity	11,212	10,343
Noncontrolling interests - preferred and preference stock of utility	2,070	1,795
Total equity	13,282	12,138
Total liabilities and equity	$ 49,456	$ 46,050

Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees, including preference stock costs.

No definition available.