Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 1,370	$ 1,042
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	960	919
Amortization of Nuclear Fuel	162	151
Provision for Deferred Income Taxes and ITC	230	103
Non-Cash Employee Benefit Plan Costs	121	36
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes	6	(30)
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	(87)	237
Change in Accrued Storm Costs	15	(3)
Net Change in Other Regulatory Assets and Liabilities	26	276
Cost of Removal	(82)	(68)
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(2)	(99)
Net Change in Certain Current Assets and Liabilities:
Tax Receivable	(206)	(95)
Accrued Taxes	127	127
Margin Deposit	142	(173)
Other Current Assets and Liabilities	15	(103)
Employee Benefit Plan Funding and Related Payments	(87)	(76)
Other	106	102
Net Cash Provided By (Used In) Operating Activities	3,228	2,536
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(2,782)	(1,922)
Proceeds from Sales of Capital Leases and Investments	12	11
Proceeds from Sale of Available-for-Sale Securities	1,120	1,224
Investments in Available-for-Sale Securities	(1,163)	(1,241)
Other	(28)	(60)
Net Cash Provided By (Used In) Investing Activities	(2,841)	(1,988)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	20	(60)
Issuance of Long-Term Debt	600	1,000
Redemption of Long-Term Debt	(300)	(500)
Redemption of Securitization Debt	(191)	(170)
Cash Dividends Paid on Common Stock	(592)	(561)
Other	(55)	(47)
Net Cash Provided By (Used In) Financing Activities	(518)	(338)
Net Increase (Decrease) In Cash and Cash Equivalents	(131)	210
Cash and Cash Equivalents at Beginning of Period	402	493
Cash and Cash Equivalents at End of Period	271	703
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	292	284
Interest Paid, Net of Amounts Capitalized	265	269
Accrued Property, Plant and Equipment Expenditures	321	286
PSE And G [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	631	565
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	712	682
Provision for Deferred Income Taxes and ITC	96	93
Non-Cash Employee Benefit Plan Costs	71	21
Change in Accrued Storm Costs	15	(3)
Net Change in Other Regulatory Assets and Liabilities	26	276
Cost of Removal	(82)	(68)
Net Change in Certain Current Assets and Liabilities:
Accounts Receivable and Unbilled Revenues	30	71
Fuel, Materials and Supplies	(13)	(15)
Prepayments	(67)	(92)
Accounts Payable	34	(3)
Accounts Receivable/Payable-Affiliated Companies, net	190	(113)
Other Current Assets and Liabilities	(18)	(6)
Employee Benefit Plan Funding and Related Payments	(72)	(67)
Other	(35)	2
Net Cash Provided By (Used In) Operating Activities	1,518	1,343
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(1,946)	(1,493)
Proceeds from Sale of Available-for-Sale Securities	16	98
Investments in Available-for-Sale Securities	(18)	(96)
Other	13	1
Net Cash Provided By (Used In) Investing Activities	(1,935)	(1,490)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Short-Term Debt	20	(60)
Issuance of Long-Term Debt	600	1,000
Redemption of Long-Term Debt	(300)	(500)
Redemption of Securitization Debt	(191)	(170)
Contributed Capital	0	175
Other	(8)	(11)
Net Cash Provided By (Used In) Financing Activities	121	434
Net Increase (Decrease) In Cash and Cash Equivalents	(296)	287
Cash and Cash Equivalents at Beginning of Period	310	18
Cash and Cash Equivalents at End of Period	14	305
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(29)	174
Interest Paid, Net of Amounts Capitalized	186	188
Accrued Property, Plant and Equipment Expenditures	251	238
Power [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	707	440
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	226	215
Amortization of Nuclear Fuel	162	151
Provision for Deferred Income Taxes and ITC	109	5
Non-Cash Employee Benefit Plan Costs	36	10
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	(87)	237
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(2)	(99)
Net Change in Certain Current Assets and Liabilities:
Fuel, Materials and Supplies	113	17
Margin Deposit	142	(173)
Accounts Receivable	54	49
Accounts Payable	(99)	(135)
Accounts Receivable/Payable-Affiliated Companies, net	115	299
Other Current Assets and Liabilities	(26)	28
Employee Benefit Plan Funding and Related Payments	(9)	(5)
Other	117	71
Net Cash Provided By (Used In) Operating Activities	1,558	1,110
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(797)	(414)
Proceeds from Sale of Available-for-Sale Securities	1,057	882
Investments in Available-for-Sale Securities	(1,083)	(898)
Short-Term Loan-Affiliated Company, net	(281)	167
Other	(46)	(63)
Net Cash Provided By (Used In) Investing Activities	(1,150)	(326)
CASH FLOWS FROM FINANCING ACTIVITIES
Cash Dividends Paid on Common Stock	(400)	(775)
Other	(2)	(3)
Net Cash Provided By (Used In) Financing Activities	(402)	(778)
Net Increase (Decrease) In Cash and Cash Equivalents	6	6
Cash and Cash Equivalents at Beginning of Period	9	6
Cash and Cash Equivalents at End of Period	15	12
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	284	87
Interest Paid, Net of Amounts Capitalized	76	78
Accrued Property, Plant and Equipment Expenditures	$ 70	$ 66