Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 1,438	$ 1,574	$ 887
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	1,158	1,986	1,476
Amortization of Nuclear Fuel	187	199	203
Emission Allowances and Renewable Energy Credit Compliance Accrual	97	103	109
Impairment Costs for Early Plant Retirements	0	0	102
Provision for Deferred Income Taxes (Other than Leases) and ITC	568	(167)	474
Non-Cash Employee Benefit Plan Costs	70	89	127
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes	(149)	(159)	(6)
Gain on Sale of Hudson and Mercer	(54)	0	0
Net (Gain) Loss on Lease Investments	5	48	92
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	116	188	183
Net Change in Regulatory Assets and Liabilities	(153)	(188)	(138)
Cost of Removal	(160)	(107)	(131)
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	98	(156)	(26)
Net Change in Certain Current Assets and Liabilities:
Margin Deposits	(247)	(90)	(76)
Tax Receivable	17	65	303
Accrued Taxes	(69)	16	3
Other Current Assets and Liabilities	70	(72)	(179)
Employee Benefit Plan Funding and Related Payments	(101)	(81)	(103)
Other	22	12	13
Net Cash Provided By (Used In) Operating Activities	2,913	3,260	3,313
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(3,912)	(4,190)	(4,199)
Purchase of Emissions Allowances and RECs	(146)	(117)	(99)
Proceeds from Sale of Available-for-Sale Securities	1,501	2,319	824
Investments in Available-for-Sale Securities	(1,473)	(2,340)	(856)
Other	114	72	82
Net Cash Provided By (Used In) Investing Activities	(3,916)	(4,256)	(4,248)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	474	154	24
Issuance of Long-Term Debt	2,750	2,175	2,675
Redemption of Long-Term Debt	(1,350)	(500)	(824)
Cash Dividend Paid	(910)	(870)	(830)
Other	(77)	(74)	(79)
Net Cash Provided By (Used In) Financing Activities	887	885	966
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(116)	(111)	31
Cash, Cash Equivalents and Restricted Cash, beginning	315	426	395
Cash, Cash Equivalents and Restricted Cash, ending	199	315	426
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	99	(8)	(245)
Interest Paid, Net of Amounts Capitalized	454	377	365
Accrued Property, Plant and Equipment Expenditures	517	722	664
PSE&G [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	1,067	973	889
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	770	685	565
Provision for Deferred Income Taxes (Other than Leases) and ITC	405	616	658
Non-Cash Employee Benefit Plan Costs	37	50	72
Net Change in Regulatory Assets and Liabilities	(153)	(188)	(138)
Cost of Removal	(160)	(107)	(131)
Net Change in Certain Current Assets and Liabilities:
Accounts Receivable and Unbilled Revenues	65	(106)	(84)
Fuel, Materials and Supplies	1	(13)	(7)
Prepayments	14	(35)	22
Accounts Payable	64	1	(29)
Accounts Receivable/Payable-Affiliated Companies, net	(139)	101	199
Other Current Assets and Liabilities	5	15	9
Employee Benefit Plan Funding and Related Payments	(85)	(68)	(82)
Other	(38)	(86)	(47)
Net Cash Provided By (Used In) Operating Activities	1,853	1,838	1,896
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(2,896)	(2,919)	(2,816)
Proceeds from Sale of Available-for-Sale Securities	20	36	22
Investments in Available-for-Sale Securities	(22)	(37)	(24)
Solar Loan Investments	(5)	7	14
Other	9	10	15
Net Cash Provided By (Used In) Investing Activities	(2,894)	(2,903)	(2,789)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	272	0	(153)
Issuance of Long-Term Debt	1,350	775	1,275
Redemption of Long-Term Debt	(750)	0	(271)
Contributed Capital	0	150	250
Other	(14)	(9)	(14)
Net Cash Provided By (Used In) Financing Activities	858	916	1,087
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(183)	(149)	194
Cash, Cash Equivalents and Restricted Cash, beginning	244	393	199
Cash, Cash Equivalents and Restricted Cash, ending	61	244	393
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	94	(104)	(295)
Interest Paid, Net of Amounts Capitalized	318	294	273
Accrued Property, Plant and Equipment Expenditures	350	429	420
Power [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	365	479	18
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	354	1,268	881
Amortization of Nuclear Fuel	187	199	203
Emission Allowances and Renewable Energy Credit Compliance Accrual	97	103	109
Impairment Costs for Early Plant Retirements	0	0	102
Provision for Deferred Income Taxes (Other than Leases) and ITC	206	(807)	(208)
Interest Accretion on Asset Retirement Obligation	41	30	26
Non-Cash Employee Benefit Plan Costs	23	28	39
Gain on Sale of Hudson and Mercer	(54)	0	0
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	116	188	183
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	98	(156)	(26)
Net Change in Certain Current Assets and Liabilities:
Fuel, Materials and Supplies	(39)	42	31
Margin Deposits	(247)	(90)	(76)
Accounts Receivable	51	(45)	(71)
Accounts Payable	(13)	39	(22)
Accounts Receivable/Payable-Affiliated Companies, net	(56)	(2)	6
Other Current Assets and Liabilities	(40)	10	10
Employee Benefit Plan Funding and Related Payments	(9)	(7)	(13)
Other	4	47	63
Net Cash Provided By (Used In) Operating Activities	1,084	1,326	1,255
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(996)	(1,231)	(1,343)
Purchase of Emissions Allowances and RECs	(146)	(117)	(99)
Proceeds from Sale of Available-for-Sale Securities	1,423	2,182	739
Investments in Available-for-Sale Securities	(1,392)	(2,199)	(766)
Increase (Decrease) Due from Affiliates	0	(87)	(276)
Other	60	46	46
Net Cash Provided By (Used In) Investing Activities	(1,051)	(1,232)	(1,147)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of Long-Term Debt	700	0	700
Redemption of Long-Term Debt	(250)	0	(553)
Increase (Decrease) in Due to Affiliates	(88)	281	0
Cash Dividend Paid	(400)	(350)	(250)
Other	(5)	(4)	(6)
Net Cash Provided By (Used In) Financing Activities	(43)	(73)	(109)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(10)	21	(1)
Cash, Cash Equivalents and Restricted Cash, beginning	32	11	12
Cash, Cash Equivalents and Restricted Cash, ending	22	32	11
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(92)	77	50
Interest Paid, Net of Amounts Capitalized	73	48	81
Accrued Property, Plant and Equipment Expenditures	$ 167	$ 293	$ 244