Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 1,043	$ 1,051
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	886	797
Amortization of Nuclear Fuel	145	129
Provision for Deferred Income Taxes and ITC	242	221
Non-Cash Employee Benefit Plan Costs	182	203
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes	(7)	(81)
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	3	116
Change in Accrued Storm Costs	(87)	5
Net Change in Regulatory Assets and Liabilities	134	(82)
Cost of Removal	(66)	(71)
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(76)	(107)
Employee Benefit Plan Funding and Related Payments	(210)	(193)
Other	71	2
Net Change in Certain Current Assets and Liabilities:
Net Change in Tax Receivable	2	16
Net Change in Certain Current Assets and Liabilities	173	305
Net Cash Provided By (Used In) Operating Activities	2,435	2,311
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(2,102)	(1,969)
Proceeds from Sale of Capital Leases and Investments	42	0
Proceeds from Sale of Available-for-Sale Securities	914	1,473
Investments in Available-for-Sale Securities	(922)	(1,497)
Other	(20)	(58)
Net Cash Provided By (Used In) Investing Activities	(2,088)	(2,051)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	(263)	0
Issuance of Long-Term Debt	1,500	850
Redemption of Long-Term Debt	(750)	(439)
Redemption of Securitization Debt	(162)	(154)
Repayments Of Nonrecourse Debt	0	(1)
Cash Dividend Paid on Common Stock	(546)	(538)
Other	(57)	(32)
Net Cash Provided By (Used In) Financing Activities	(278)	(314)
Net Increase (Decrease) In Cash and Cash Equivalents	69	(54)
Cash and Cash Equivalents at Beginning of Period	379	834
Cash and Cash Equivalents at End of Period	448	780
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	222	109
Interest Paid, Net of Amounts Capitalized	274	280
Accrued Property, Plant and Equipment Expenditures	258	259
Power [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	562	538
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	195	175
Amortization of Nuclear Fuel	145	129
Provision for Deferred Income Taxes and ITC	96	189
Non-Cash Employee Benefit Plan Costs	50	53
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	3	116
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(76)	(107)
Employee Benefit Plan Funding and Related Payments	(45)	(40)
Other	32	5
Net Change in Certain Current Assets and Liabilities:
Fuel, Materials and Supplies	(38)	(10)
Margin Deposit	17	(107)
Accounts Receivable	69	50
Accounts Payable	(63)	(31)
Accounts Receivable/Payable-Affiliated Companies, net	306	193
Accrued Interest Payable, Net	11	17
Other Current Assets and Liabilities	20	2
Net Cash Provided By (Used In) Operating Activities	1,284	1,172
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(419)	(493)
Proceeds from Sale of Available-for-Sale Securities	849	1,295
Investments in Available-for-Sale Securities	(864)	(1,315)
Short-Term Loan-Affiliated Company, net	157	17
Other	(13)	(10)
Net Cash Provided By (Used In) Investing Activities	(290)	(506)
CASH FLOWS FROM FINANCING ACTIVITIES
Redemption of Long-Term Debt	(300)	(66)
Cash Dividend Paid on Common Stock	(690)	(600)
Other	(2)	(7)
Net Cash Provided By (Used In) Financing Activities	(992)	(673)
Net Increase (Decrease) In Cash and Cash Equivalents	2	(7)
Cash and Cash Equivalents at Beginning of Period	7	12
Cash and Cash Equivalents at End of Period	9	5
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	107	130
Interest Paid, Net of Amounts Capitalized	72	73
Accrued Property, Plant and Equipment Expenditures	58	84
PSE And G [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	468	453
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	658	594
Provision for Deferred Income Taxes and ITC	153	131
Non-Cash Employee Benefit Plan Costs	117	134
Change in Accrued Storm Costs	(87)	5
Net Change in Regulatory Assets and Liabilities	134	(82)
Cost of Removal	(66)	(71)
Employee Benefit Plan Funding and Related Payments	(147)	(137)
Other	23	(21)
Net Change in Certain Current Assets and Liabilities:
Accounts Receivable and Unbilled Revenues	48	97
Fuel, Materials and Supplies	(4)	(11)
Prepayments	(109)	(28)
Net Change in Tax Receivable	0	16
Accounts Payable	3	(20)
Accounts Receivable/Payable-Affiliated Companies, net	(171)	(41)
Other Current Assets and Liabilities	29	22
Net Cash Provided By (Used In) Operating Activities	1,049	1,041
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(1,628)	(1,369)
Proceeds from Sale of Available-for-Sale Securities	35	73
Investments in Available-for-Sale Securities	(16)	(73)
Solar Loan Investments	(11)	(56)
Restricted Funds	0	1
Net Cash Provided By (Used In) Investing Activities	(1,620)	(1,424)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Short-Term Debt	(263)	0
Issuance of Long-Term Debt	1,500	850
Redemption of Long-Term Debt	(450)	(373)
Redemption of Securitization Debt	(162)	(154)
Contributed Capital	100	0
Other	(17)	(12)
Net Cash Provided By (Used In) Financing Activities	708	311
Net Increase (Decrease) In Cash and Cash Equivalents	137	(72)
Cash and Cash Equivalents at Beginning of Period	116	143
Cash and Cash Equivalents at End of Period	253	71
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	174	(30)
Interest Paid, Net of Amounts Capitalized	199	205
Accrued Property, Plant and Equipment Expenditures	$ 200	$ 175