Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 653	$ 704
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	573	511
Amortization of Nuclear Fuel	95	84
Provision for Deferred Income Taxes (Other than Leases) and ITC	146	165
Non-Cash Employee Benefit Plan Costs	122	134
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes	(26)	(98)
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	20	(86)
Deferred Storm Costs	(81)	5
Net Change in Regulatory Assets and Liabilities	62	(94)
Cost of Removal	(46)	(44)
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(47)	(26)
Net Change in Certain Current Assets and Liabilities	24	278
Net Change in Certain Current Assets and Liabilities:
Employee Benefit Plan Funding and Related Payments	(194)	(175)
Other	42	20
Net Cash Provided By (Used In) Operating Activities	1,343	1,378
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(1,406)	(1,280)
Proceeds from Sale of Capital Leases and Investments	42	1
Proceeds from Sale of Available-for-Sale Securities	681	850
Investments in Available-for-Sale Securities	(684)	(867)
Other	(12)	(43)
Net Cash Provided By (Used In) Investing Activities	(1,379)	(1,339)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	(106)	16
Issuance of Long-Term Debt	900	500
Redemption of Long-Term Debt	(556)	(240)
Cash Dividend Paid on Common Stock	(364)	(359)
Other	(53)	(25)
Net Cash Provided By (Used In) Financing Activities	(179)	(108)
Net Increase (Decrease) In Cash and Cash Equivalents	(215)	(69)
Cash and Cash Equivalents at Beginning of Period	379	834
Cash and Cash Equivalents at End of Period	164	765
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	138	114
Interest Paid, Net of Amounts Capitalized	194	197
Accrued Property, Plant and Equipment Expenditures	222	207
Power [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	341	357
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	129	115
Amortization of Nuclear Fuel	95	84
Provision for Deferred Income Taxes (Other than Leases) and ITC	74	184
Non-Cash Employee Benefit Plan Costs	33	34
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	20	(86)
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(47)	(26)
Net Change in Certain Current Assets and Liabilities:
Fuel, Materials and Supplies	97	94
Margin Deposit	(8)	36
Accounts Receivable	25	40
Accounts Payable	(77)	(14)
Accounts Receivable/Payable-Affiliated Companies, net	197	73
Other Current Assets and Liabilities	(8)	(6)
Employee Benefit Plan Funding and Related Payments	(44)	(39)
Other	27	6
Net Cash Provided By (Used In) Operating Activities	854	852
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(222)	(344)
Proceeds from Sale of Available-for-Sale Securities	625	677
Investments in Available-for-Sale Securities	(637)	(692)
Short-Term Loan-Affiliated Company, net	179	170
Net Cash Provided By (Used In) Investing Activities	(55)	(189)
CASH FLOWS FROM FINANCING ACTIVITIES
Redemption of Long-Term Debt	(300)	(66)
Cash Dividend Paid on Common Stock	(500)	(600)
Other	(2)	(7)
Net Cash Provided By (Used In) Financing Activities	(802)	(673)
Net Increase (Decrease) In Cash and Cash Equivalents	(3)	(10)
Cash and Cash Equivalents at Beginning of Period	7	12
Cash and Cash Equivalents at End of Period	4	2
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	60	118
Interest Paid, Net of Amounts Capitalized	56	57
Accrued Property, Plant and Equipment Expenditures	33	49
PSE And G [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	300	298
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	422	378
Provision for Deferred Income Taxes (Other than Leases) and ITC	75	75
Non-Cash Employee Benefit Plan Costs	78	89
Deferred Storm Costs	(81)	5
Net Change in Regulatory Assets and Liabilities	62	(94)
Cost of Removal	(46)	(44)
Net Change in Certain Current Assets and Liabilities:
Accounts Receivable and Unbilled Revenues	6	108
Fuel, Materials and Supplies	(6)	(8)
Prepayments	(192)	(126)
Accounts Payable	47	(24)
Accounts Receivable/Payable-Affiliated Companies, net	(137)	(94)
Other Current Assets and Liabilities	8	13
Employee Benefit Plan Funding and Related Payments	(134)	(121)
Other	19	4
Net Cash Provided By (Used In) Operating Activities	421	459
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(1,148)	(870)
Proceeds from Sale of Available-for-Sale Securities	32	71
Investments in Available-for-Sale Securities	(13)	(71)
Solar Loan Investments	(15)	(48)
Restricted Funds	0	3
Net Cash Provided By (Used In) Investing Activities	(1,144)	(915)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Short-Term Debt	(106)	16
Issuance of Long-Term Debt	900	500
Redemption of Long-Term Debt	(150)	(73)
Redemption of Securitization Debt	(106)	(101)
Contributed Capital	100	0
Other	(12)	(7)
Net Cash Provided By (Used In) Financing Activities	626	335
Net Increase (Decrease) In Cash and Cash Equivalents	(97)	(121)
Cash and Cash Equivalents at Beginning of Period	116	143
Cash and Cash Equivalents at End of Period	19	22
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	110	4
Interest Paid, Net of Amounts Capitalized	135	139
Accrued Property, Plant and Equipment Expenditures	$ 189	$ 158