Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 149	$ 146
Receivables, less allowances of $67 and $66 for uncollectible accounts at respective dates	725	838
Accrued unbilled revenue	576	596
Inventory	268	256
Derivative assets	112	122
Regulatory assets	931	538
Deferred income taxes	369	421
Other current assets	390	395
Total current assets	3,520	3,312
Nuclear decommissioning trusts	4,587	4,494
Other investments	220	207
Total investments	4,807	4,701
Utility property, plant and equipment, less accumulated depreciation of $7,691 and $7,493 at respective dates	30,741	30,379
Nonutility property, plant and equipment, less accumulated depreciation of $76 and $74 at respective dates ($72 and $70 for SCE)	76	76
Total property, plant and equipment	30,817	30,455
Derivative assets	240	251
Regulatory assets	7,351	7,241
Other long-term assets	653	686
Total long-term assets	8,244	8,178
Total assets	47,388	46,646
LIABILITIES AND EQUITY
Short-term debt	611	209
Current portion of long-term debt	601	601
Accounts payable	1,116	1,407
Accrued taxes	423	358
Customer deposits	204	201
Derivative liabilities	143	152
Regulatory liabilities	455	767
Other current liabilities	1,004	1,186
Total current liabilities	4,557	4,881
Long-term debt	9,825	9,825
Deferred income taxes and credits	7,437	7,346
Derivative liabilities	985	1,042
Pensions and benefits	1,360	1,378
Asset retirement obligations	3,471	3,418
Regulatory liabilities	5,655	4,995
Other deferred credits and other long-term liabilities	2,096	2,070
Total deferred credits and other liabilities	21,004	20,249
Total liabilities	35,386	34,955
Commitments and contingencies (Note 12)
Common stock, no par value (800,000,000 shares authorized; 325,811,206 shares issued and outstanding at each date) and (560,000,000 shares authorized; 434,888,104 shares issued and outstanding at each date for SCE)	2,417	2,403
Accumulated other comprehensive loss	(11)	(13)
Retained earnings	7,573	7,548
Total common shareholders' equity	9,979	9,938
Preferred and preference stock of utility	2,023	1,753
Total noncontrolling interests	2,023	1,753
Total equity	12,002	11,691
Total liabilities and equity	47,388	46,646
Southern California Edison
ASSETS
Cash and cash equivalents	46	54
Receivables, less allowances of $67 and $66 for uncollectible accounts at respective dates	702	813
Accrued unbilled revenue	576	596
Inventory	262	256
Derivative assets	112	122
Regulatory assets	931	538
Deferred income taxes	245	303
Other current assets	388	393
Total current assets	3,262	3,075
Nuclear decommissioning trusts	4,587	4,494
Other investments	150	140
Total investments	4,737	4,634
Utility property, plant and equipment, less accumulated depreciation of $7,691 and $7,493 at respective dates	30,741	30,379
Nonutility property, plant and equipment, less accumulated depreciation of $76 and $74 at respective dates ($72 and $70 for SCE)	71	72
Total property, plant and equipment	30,812	30,451
Derivative assets	240	251
Regulatory assets	7,351	7,241
Other long-term assets	396	398
Total long-term assets	7,987	7,890
Total assets	46,798	46,050
LIABILITIES AND EQUITY
Short-term debt	405	175
Current portion of long-term debt	600	600
Accounts payable	1,089	1,373
Customer deposits	204	201
Derivative liabilities	143	152
Regulatory liabilities	455	767
Deferred income taxes	42	39
Other current liabilities	1,100	1,091
Total current liabilities	4,038	4,398
Long-term debt	9,423	9,422
Deferred income taxes and credits	7,928	7,841
Derivative liabilities	985	1,042
Pensions and benefits	932	951
Asset retirement obligations	3,471	3,418
Regulatory liabilities	5,655	4,995
Other deferred credits and other long-term liabilities	1,885	1,845
Total deferred credits and other liabilities	20,856	20,092
Total liabilities	34,317	33,912
Commitments and contingencies (Note 12)
Common stock, no par value (800,000,000 shares authorized; 325,811,206 shares issued and outstanding at each date) and (560,000,000 shares authorized; 434,888,104 shares issued and outstanding at each date for SCE)	2,168	2,168
Additional paid-in capital	598	592
Accumulated other comprehensive loss	(10)	(11)
Retained earnings	7,655	7,594
Total common shareholders' equity	10,411	10,343
Preferred and preference stock of utility	2,070	1,795
Total equity	12,481	12,138
Total liabilities and equity	$ 46,798	$ 46,050