Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
CURRENT ASSETS
Cash and cash equivalents	$ 184	$ 23
Restricted cash equivalents	21	13
Accounts receivable, less allowance for uncollectible accounts	822	835
Inventories	149	148
Deferred income tax assets, net	50	51
Income taxes and related accrued interest receivable	8	274
Prepaid expenses and other	82	54
Total Current Assets	1,316	1,398
OTHER ASSETS
Goodwill	1,407	1,407
Regulatory assets	2,002	2,087
Income taxes and related accrued interest receivable	58	75
Restricted cash equivalents	14	14
Other	168	163
Total Other Assets	3,649	3,746
PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment	15,043	14,567
Accumulated depreciation	(4,938)	(4,863)
Net Property, Plant and Equipment	10,105	9,704
TOTAL ASSETS	15,070	14,848
CURRENT LIABILITIES
Short-term debt	479	565
Current portion of long-term debt and project funding	371	446
Accounts payable	170	215
Accrued liabilities	327	301
Capital lease obligations due within one year	10	9
Taxes accrued	51	56
Interest accrued	49	47
Liabilities and accrued interest related to uncertain tax positions	6	397
Other	304	277
Total Current Liabilities	1,767	2,313
DEFERRED CREDITS
Regulatory liabilities	394	399
Deferred income tax liabilities, net	3,160	2,928
Investment tax credits	17	17
Pension benefit obligation	124	116
Other postretirement benefit obligations	173	206
Liabilities and accrued interest related to uncertain tax positions	6	28
Other	187	189
Total Deferred Credits	4,061	3,883
OTHER LONG-TERM LIABILITIES
Long-term debt	4,557	4,053
Transition bonds issued by ACE Funding	193	214
Long-term project funding	9	10
Capital lease obligations	55	60
Total Other Long-Term Liabilities	4,814	4,337
COMMITMENTS AND CONTINGENCIES
PREFERRED STOCK
Series A preferred stock, $.01 par value, 18,000 shares authorized, 9,000 and zero shares outstanding, respectively	93
EQUITY
Common stock	3	3
Premium on stock and other capital contributions	3,780	3,751
Accumulated other comprehensive loss	(35)	(34)
Retained earnings	587	595
Total Equity	4,335	4,315
TOTAL LIABILITIES AND EQUITY	15,070	14,848
Potomac Electric Power Co [Member]
CURRENT ASSETS
Cash and cash equivalents	27	9
Restricted cash equivalents	7	3
Accounts receivable, less allowance for uncollectible accounts	342	345
Inventories	67	67
Deferred income tax assets, net	48	48
Income taxes and related accrued interest receivable	94	113
Prepaid expenses and other	8	18
Total Current Assets	593	603
OTHER ASSETS
Regulatory assets	595	563
Prepaid pension expense	324	332
Investment in trust	32	33
Income taxes and related accrued interest receivable	28	36
Other	74	66
Total Other Assets	1,053	1,030
PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment	7,527	7,310
Accumulated depreciation	(2,810)	(2,772)
Net Property, Plant and Equipment	4,717	4,538
TOTAL ASSETS	6,363	6,171
CURRENT LIABILITIES
Short-term debt		151
Current portion of long-term debt and project funding	5	175
Accounts payable	100	132
Accrued liabilities	106	90
Accounts payable due to associated companies	29	32
Capital lease obligations due within one year	10	9
Taxes accrued	26	34
Interest accrued	22	20
Liabilities and accrued interest related to uncertain tax positions		37
Customer deposits	46	46
Other	80	75
Total Current Liabilities	424	801
DEFERRED CREDITS
Regulatory liabilities	112	113
Deferred income tax liabilities, net	1,488	1,412
Investment tax credits	3	3
Other postretirement benefit obligations	59	61
Liabilities and accrued interest related to uncertain tax positions		10
Other	65	65
Total Deferred Credits	1,727	1,664
OTHER LONG-TERM LIABILITIES
Long-term debt	2,123	1,724
Capital lease obligations	55	60
Total Other Long-Term Liabilities	2,178	1,784
EQUITY
Common stock	0	0
Premium on stock and other capital contributions	1,010	930
Retained earnings	1,024	992
Total Equity	2,034	1,922
TOTAL LIABILITIES AND EQUITY	6,363	6,171
Delmarva Power & Light Co/De [Member]
CURRENT ASSETS
Cash and cash equivalents	149	2
Restricted cash equivalents	5
Accounts receivable, less allowance for uncollectible accounts	187	208
Inventories	53	51
Deferred income tax assets, net	61	59
Income taxes and related accrued interest receivable	32	32
Prepaid expenses and other	1	9
Total Current Assets	488	361
OTHER ASSETS
Goodwill	8	8
Regulatory assets	321	311
Prepaid pension expense	224	228
Income taxes and related accrued interest receivable	4	4
Other	13	12
Total Other Assets	570	563
PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment	3,819	3,673
Accumulated depreciation	(1,031)	(1,016)
Net Property, Plant and Equipment	2,788	2,657
TOTAL ASSETS	3,846	3,581
CURRENT LIABILITIES
Short-term debt	105	252
Current portion of long-term debt and project funding	200	100
Accounts payable	33	46
Accrued liabilities	65	71
Accounts payable due to associated companies	20	22
Taxes accrued	3	4
Interest accrued	7	6
Customer deposits	27	25
Other	48	35
Total Current Liabilities	508	561
DEFERRED CREDITS
Regulatory liabilities	240	229
Deferred income tax liabilities, net	857	816
Investment tax credits	4	5
Other postretirement benefit obligations	21	23
Other	35	36
Total Deferred Credits	1,157	1,109
OTHER LONG-TERM LIABILITIES
Long-term debt	971	867
EQUITY
Common stock	0	0
Premium on stock and other capital contributions	537	407
Retained earnings	673	637
Total Equity	1,210	1,044
TOTAL LIABILITIES AND EQUITY	3,846	3,581
Atlantic City Electric Co [Member]
CURRENT ASSETS
Cash and cash equivalents	6	3
Restricted cash equivalents	9	10
Accounts receivable, less allowance for uncollectible accounts	176	186
Inventories	27	28
Income taxes and related accrued interest receivable	147	147
Prepaid expenses and other	51	16
Total Current Assets	416	390
OTHER ASSETS
Regulatory assets	462	569
Prepaid pension expense	101	106
Income taxes and related accrued interest receivable	34	34
Restricted cash equivalents	14	14
Other	11	12
Total Other Assets	622	735
PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment	2,978	2,901
Accumulated depreciation	(754)	(751)
Net Property, Plant and Equipment	2,224	2,150
TOTAL ASSETS	3,262	3,275
CURRENT LIABILITIES
Short-term debt	180	138
Current portion of long-term debt and project funding	149	148
Accounts payable	21	21
Accrued liabilities	107	105
Accounts payable due to associated companies	14	15
Taxes accrued	16	12
Interest accrued	12	13
Customer deposits	20	22
Other	26	23
Total Current Liabilities	545	497
DEFERRED CREDITS
Regulatory liabilities	18	57
Deferred income tax liabilities, net	841	833
Investment tax credits	5	5
Other postretirement benefit obligations	35	35
Other	15	14
Total Deferred Credits	914	944
OTHER LONG-TERM LIABILITIES
Long-term debt	753	753
Transition bonds issued by ACE Funding	193	214
Total Other Long-Term Liabilities	946	967
EQUITY
Common stock	26	26
Premium on stock and other capital contributions	651	651
Retained earnings	180	190
Total Equity	857	867
TOTAL LIABILITIES AND EQUITY	$ 3,262	$ 3,275