Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
CURRENT ASSETS
Cash and Cash Equivalents	$ 780	$ 834
Accounts Receivable, net of allowances in 2012 and 2011, respectively	1,044	967
Tax Receivable	0	16
Unbilled Revenues	215	289
Fuel	657	685
Materials and Supplies, net	416	367
Prepayments	274	308
Derivative Contracts	123	156
Deferred Income Taxes	148	0
Regulatory Assets	280	167
Other	41	122
Total Current Assets	3,978	3,911
PROPERTY, PLANT AND EQUIPMENT	26,731	25,080
Less: Accumulated Depreciation and Amortization	(7,628)	(7,231)
Net Property, Plant and Equipment	19,103	17,849
NONCURRENT ASSETS
Regulatory Assets	3,336	3,805
Regulatory Assets of Variable Interest Entities (VIEs)	760	925
Long-Term Investments	1,314	1,303
Nuclear Decommissioning Trust (NDT) Fund	1,501	1,349
Other Special Funds	192	172
Goodwill	16	16
Other Intangibles	57	131
Derivative Contracts	144	106
Restricted Cash of VIEs	21	22
Other	284	232
Total Noncurrent Assets	7,625	8,061
Total Assets	30,706	29,821
CURRENT LIABILITIES
Long-Term Debt Due Within One Year	751	417
Securitization Debt of VIEs Due Within One Year	224	216
Accounts Payable	1,012	1,184
Derivative Contracts	51	131
Accrued Interest	119	97
Accrued Taxes	216	30
Deferred Income Taxes	0	170
Clean Energy Program	89	214
Obligation to Return Cash Collateral	122	107
Regulatory Liabilities	94	100
Other	361	291
Total Current Liabilities	3,039	2,957
NONCURRENT LIABILITIES
Deferred Income Taxes and Investment Tax Credits (ITC)	6,058	5,458
Regulatory Liabilities	248	228
Regulatory Liabilities of VIEs	10	9
Asset Retirement Obligations	513	489
Other Postretirement Benefit (OPEB) Costs	1,116	1,127
Accrued Pension Costs	629	734
Clean Energy Program	0	39
Environmental Costs	565	643
Derivative Contracts	112	26
Long-Term Accrued Taxes	166	292
Other	108	86
Total Noncurrent Liabilities	9,525	9,131
LONG-TERM DEBT
Long-Term Debt	6,729	6,694
Securitization Debt of VIEs	561	723
Project Level, Non-Recourse Debt	44	44
Total Long-Term Debt	7,334	7,461
STOCKHOLDER'S EQUITY
Common Stock	4,836	4,823
Treasury Stock, at cost, 2012-27,646,288 shares; 2011-27,611,374 shares	(606)	(601)
Retained Earnings	6,898	6,385
Accumulated Other Comprehensive Income	(322)	(337)
Total Common Stockholders' Equity	10,806	10,270
Noncontrolling Interest	2	2
Total Stockholder's Equity	10,808	10,272
Total Capitalization	18,142	17,733
TOTAL LIABILITIES AND CAPITALIZATION	30,706	29,821
Power [Member]
CURRENT ASSETS
Cash and Cash Equivalents	5	12
Accounts Receivable, net of allowances in 2012 and 2011, respectively	295	267
Accounts Receivable-Affiliated Companies, net	100	381
Short-Term Loan to Affiliate	890	907
Fuel	657	685
Materials and Supplies, net	310	272
Prepayments	22	24
Derivative Contracts	102	139
Total Current Assets	2,381	2,687
PROPERTY, PLANT AND EQUIPMENT	9,564	9,191
Less: Accumulated Depreciation and Amortization	(2,692)	(2,460)
Net Property, Plant and Equipment	6,872	6,731
NONCURRENT ASSETS
Nuclear Decommissioning Trust (NDT) Fund	1,501	1,349
Other Special Funds	36	33
Goodwill	16	16
Other Intangibles	57	131
Derivative Contracts	22	55
Other	109	85
Total Noncurrent Assets	1,741	1,669
Total Assets	10,994	11,087
CURRENT LIABILITIES
Long-Term Debt Due Within One Year	300	66
Accounts Payable	433	541
Derivative Contracts	51	124
Accrued Interest	49	32
Deferred Income Taxes	4	53
Other	90	86
Total Current Liabilities	927	902
NONCURRENT LIABILITIES
Deferred Income Taxes and Investment Tax Credits (ITC)	1,463	1,266
Asset Retirement Obligations	275	259
Other Postretirement Benefit (OPEB) Costs	189	180
Accrued Pension Costs	205	236
Derivative Contracts	6	24
Long-Term Accrued Taxes	66	8
Other	84	83
Total Noncurrent Liabilities	2,288	2,056
LONG-TERM DEBT
Total Long-Term Debt	2,386	2,685
STOCKHOLDER'S EQUITY
Contributed Capital	2,028	2,028
Basis Adjustment	(986)	(986)
Retained Earnings	4,616	4,678
Accumulated Other Comprehensive Income	(265)	(276)
Total Stockholder's Equity	5,393	5,444
TOTAL LIABILITIES AND CAPITALIZATION	10,994	11,087
PSE And G [Member]
CURRENT ASSETS
Cash and Cash Equivalents	71	143
Accounts Receivable, net of allowances in 2012 and 2011, respectively	729	691
Tax Receivable	0	16
Unbilled Revenues	215	289
Materials and Supplies, net	105	94
Prepayments	145	117
Derivative Contracts	3	0
Regulatory Assets	280	167
Other	30	21
Total Current Assets	1,578	1,538
PROPERTY, PLANT AND EQUIPMENT	16,509	15,306
Less: Accumulated Depreciation and Amortization	(4,674)	(4,539)
Net Property, Plant and Equipment	11,835	10,767
NONCURRENT ASSETS
Regulatory Assets	3,336	3,805
Regulatory Assets of Variable Interest Entities (VIEs)	760	925
Long-Term Investments	334	280
Other Special Funds	63	57
Derivative Contracts	70	4
Restricted Cash of VIEs	21	22
Other	118	89
Total Noncurrent Assets	4,702	5,182
Total Assets	18,115	17,487
CURRENT LIABILITIES
Long-Term Debt Due Within One Year	450	300
Securitization Debt of VIEs Due Within One Year	224	216
Accounts Payable	449	498
Derivative Contracts	0	7
Accounts Payable-Affiliated Companies, net	155	280
Accrued Interest	71	65
Deferred Income Taxes	16	32
Clean Energy Program	89	214
Obligation to Return Cash Collateral	122	107
Regulatory Liabilities	94	100
Other	243	186
Total Current Liabilities	1,913	2,005
NONCURRENT LIABILITIES
Deferred Income Taxes and Investment Tax Credits (ITC)	3,916	3,675
Regulatory Liabilities	248	228
Regulatory Liabilities of VIEs	10	9
Asset Retirement Obligations	233	226
Other Postretirement Benefit (OPEB) Costs	879	900
Accrued Pension Costs	285	355
Clean Energy Program	0	39
Environmental Costs	514	592
Derivative Contracts	106	0
Long-Term Accrued Taxes	19	83
Other	37	35
Total Noncurrent Liabilities	6,247	6,142
LONG-TERM DEBT
Long-Term Debt	4,294	3,970
Securitization Debt of VIEs	561	723
Total Long-Term Debt	4,855	4,693
STOCKHOLDER'S EQUITY
Common Stock	892	892
Contributed Capital	420	420
Basis Adjustment	986	986
Retained Earnings	2,800	2,347
Accumulated Other Comprehensive Income	2	2
Total Stockholder's Equity	5,100	4,647
Total Capitalization	9,955	9,340
TOTAL LIABILITIES AND CAPITALIZATION	$ 18,115	$ 17,487