Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 586	$ 386
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	330	306
Amortization of Nuclear Fuel	55	54
Provision for Deferred Income Taxes and ITC	63	(39)
Non-Cash Employee Benefit Plan Costs	41	11
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes	4	(22)
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	37	224
Change in Accrued Storm Costs	7	(1)
Net Change in Other Regulatory Assets and Liabilities	(29)	177
Cost of Removal	(26)	(25)
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(12)	(23)
Employee Benefit Plan Funding and Related Payments	(47)	(32)
Other	45	20
Net Change in Certain Current Assets and Liabilities:
Tax Receivable	(180)	2
Accrued Taxes	322	273
Margin Deposit	14	(261)
Other Current Assets and Liabilities	109	70
Net Cash Provided By (Used In) Operating Activities	1,679	1,116
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(747)	(609)
Proceeds from Sale of Available-for-Sale Securities	609	257
Investments in Available-for-Sale Securities	(638)	(269)
Other	(3)	(8)
Net Cash Provided By (Used In) Investing Activities	(779)	(629)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	0	(60)
Redemption of Securitization Debt	(58)	(54)
Cash Dividend Paid on Common Stock	(197)	(187)
Other	(39)	(24)
Net Cash Provided By (Used In) Financing Activities	(294)	(325)
Net Increase (Decrease) In Cash and Cash Equivalents	606	162
Cash and Cash Equivalents at Beginning of Period	402	493
Cash and Cash Equivalents at End of Period	1,008	655
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(175)	15
Interest Paid, Net of Amounts Capitalized	74	79
Accrued Property, Plant and Equipment Expenditures	276	247
PSE And G [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	242	214
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	247	227
Provision for Deferred Income Taxes and ITC	29	31
Non-Cash Employee Benefit Plan Costs	24	6
Change in Accrued Storm Costs	7	(1)
Net Change in Other Regulatory Assets and Liabilities	(29)	177
Cost of Removal	(26)	(25)
Employee Benefit Plan Funding and Related Payments	(37)	(29)
Other	(12)	(10)
Net Change in Certain Current Assets and Liabilities:
Accounts Receivable and Unbilled Revenues	(142)	(264)
Fuel, Materials and Supplies	(9)	(11)
Prepayments	37	18
Accounts Payable	16	14
Accounts Receivable/Payable-Affiliated Companies, net	253	120
Other Current Assets and Liabilities	77	112
Net Cash Provided By (Used In) Operating Activities	677	579
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(599)	(481)
Proceeds from Sale of Available-for-Sale Securities	4	5
Investments in Available-for-Sale Securities	(5)	(3)
Solar Loan Investments	(2)	(2)
Other	9	0
Net Cash Provided By (Used In) Investing Activities	(593)	(481)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Short-Term Debt	0	(60)
Redemption of Securitization Debt	(58)	(54)
Contributed Capital	0	175
Net Cash Provided By (Used In) Financing Activities	(58)	61
Net Increase (Decrease) In Cash and Cash Equivalents	26	159
Cash and Cash Equivalents at Beginning of Period	310	18
Cash and Cash Equivalents at End of Period	336	177
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(180)	(37)
Interest Paid, Net of Amounts Capitalized	58	62
Accrued Property, Plant and Equipment Expenditures	226	185
Power [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	335	164
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	76	72
Amortization of Nuclear Fuel	55	54
Provision for Deferred Income Taxes and ITC	37	(71)
Non-Cash Employee Benefit Plan Costs	13	3
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	37	224
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(12)	(23)
Employee Benefit Plan Funding and Related Payments	(6)	(2)
Other	42	24
Net Change in Certain Current Assets and Liabilities:
Fuel, Materials and Supplies	284	289
Margin Deposit	14	(261)
Accounts Receivable	(16)	(19)
Accounts Payable	(55)	(70)
Accounts Receivable/Payable-Affiliated Companies, net	86	279
Increase (Decrease) in Interest Payable, Net	16	15
Other Current Assets and Liabilities	(56)	(4)
Net Cash Provided By (Used In) Operating Activities	850	674
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(139)	(126)
Proceeds from Sale of Available-for-Sale Securities	594	247
Investments in Available-for-Sale Securities	(608)	(259)
Short-Term Loan-Affiliated Company, net	(471)	(152)
Other	(11)	(5)
Net Cash Provided By (Used In) Investing Activities	(635)	(295)
CASH FLOWS FROM FINANCING ACTIVITIES
Cash Dividend Paid on Common Stock	(200)	(375)
Net Cash Provided By (Used In) Financing Activities	(200)	(375)
Net Increase (Decrease) In Cash and Cash Equivalents	15	4
Cash and Cash Equivalents at Beginning of Period	9	6
Cash and Cash Equivalents at End of Period	24	10
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	5	(93)
Interest Paid, Net of Amounts Capitalized	16	16
Accrued Property, Plant and Equipment Expenditures	$ 50	$ 62