Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 985	$ 1,370
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	679	960
Amortization of Nuclear Fuel	154	162
Impairment Costs	102	0
Provision for Deferred Income Taxes and ITC	445	230
Non-Cash Employee Benefit Plan Costs	95	121
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes	(12)	6
Loss on Leases, net of tax	86	0
Net Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	96	(87)
Change in Accrued Storm Costs	(6)	15
Net Change in Other Regulatory Assets and Liabilities	(66)	26
Cost of Removal	(109)	(82)
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(12)	(2)
Net Change in Certain Current Assets and Liabilities:
Tax Receivable	282	206
Accrued Taxes	202	127
Margin Deposit	(4)	142
Other Current Assets and Liabilities	(229)	15
Employee Benefit Plan Funding and Related Payments	(81)	(87)
Other	154	106
Net Cash Provided By (Used In) Operating Activities	2,761	3,228
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(2,985)	(2,782)
Proceeds from Sale of Capital Leases and Investments	0	12
Proceeds from Sale of Available-for-Sale Securities	551	1,120
Investments in Available-for-Sale Securities	(576)	(1,163)
Other	(44)	(28)
Net Cash Provided By (Used In) Investing Activities	(3,054)	(2,841)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	(109)	20
Issuance of Long-Term Debt	1,975	600
Redemption of Long-Term Debt	(824)	(300)
Redemption of Securitization Debt	0	(191)
Cash Dividends Paid on Common Stock	(622)	(592)
Other	(71)	(55)
Net Cash Provided By (Used In) Financing Activities	349	(518)
Net Increase (Decrease) In Cash and Cash Equivalents	56	(131)
Cash and Cash Equivalents at Beginning of Period	394	402
Cash and Cash Equivalents at End of Period	450	271
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(274)	292
Interest Paid, Net of Amounts Capitalized	252	265
Accrued Property, Plant and Equipment Expenditures	579	321
PSE And G [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	696	631
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	412	712
Provision for Deferred Income Taxes and ITC	482	96
Non-Cash Employee Benefit Plan Costs	55	71
Change in Accrued Storm Costs	(6)	15
Net Change in Other Regulatory Assets and Liabilities	(66)	26
Cost of Removal	(109)	(82)
Net Change in Certain Current Assets and Liabilities:
Accounts Receivable and Unbilled Revenues	2	30
Fuel, Materials and Supplies	(42)	(13)
Prepayments	(63)	(67)
Accounts Payable	(30)	34
Accounts Receivable/Payable-Affiliated Companies, net	154	190
Other Current Assets and Liabilities	(6)	(18)
Employee Benefit Plan Funding and Related Payments	(64)	(72)
Other	(14)	(35)
Net Cash Provided By (Used In) Operating Activities	1,401	1,518
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(2,035)	(1,946)
Proceeds from Sale of Available-for-Sale Securities	16	16
Investments in Available-for-Sale Securities	(17)	(18)
Other	6	13
Net Cash Provided By (Used In) Investing Activities	(2,030)	(1,935)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Short-Term Debt	(153)	20
Issuance of Long-Term Debt	1,275	600
Redemption of Long-Term Debt	(271)	(300)
Redemption of Securitization Debt	0	(191)
Other	(14)	(8)
Net Cash Provided By (Used In) Financing Activities	837	121
Net Increase (Decrease) In Cash and Cash Equivalents	208	(296)
Cash and Cash Equivalents at Beginning of Period	198	310
Cash and Cash Equivalents at End of Period	406	14
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(279)	(29)
Interest Paid, Net of Amounts Capitalized	194	186
Accrued Property, Plant and Equipment Expenditures	404	251
Power [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	320	707
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	245	226
Amortization of Nuclear Fuel	154	162
Impairment Costs	102	0
Provision for Deferred Income Taxes and ITC	(34)	109
Non-Cash Employee Benefit Plan Costs	28	36
Net Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	96	(87)
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(12)	(2)
Net Change in Certain Current Assets and Liabilities:
Fuel, Materials and Supplies	(27)	113
Margin Deposit	(4)	142
Accounts Receivable	(11)	54
Accounts Payable	(29)	(99)
Accounts Receivable/Payable-Affiliated Companies, net	235	115
Other Current Assets and Liabilities	20	(26)
Employee Benefit Plan Funding and Related Payments	(10)	(9)
Other	187	117
Net Cash Provided By (Used In) Operating Activities	1,260	1,558
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(923)	(797)
Proceeds from Sale of Available-for-Sale Securities	490	1,057
Investments in Available-for-Sale Securities	(512)	(1,083)
Short-Term Loan-Affiliated Company, net	(151)	(281)
Other	(55)	(46)
Net Cash Provided By (Used In) Investing Activities	(1,151)	(1,150)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of Long-Term Debt	700	0
Redemption of Long-Term Debt	(553)	0
Cash Dividends Paid on Common Stock	(250)	(400)
Other	(6)	(2)
Net Cash Provided By (Used In) Financing Activities	(109)	(402)
Net Increase (Decrease) In Cash and Cash Equivalents	0	6
Cash and Cash Equivalents at Beginning of Period	12	9
Cash and Cash Equivalents at End of Period	12	15
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(7)	284
Interest Paid, Net of Amounts Capitalized	51	76
Accrued Property, Plant and Equipment Expenditures	$ 175	$ 70