Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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The cash inflow associated with the amount received by a corporation from a shareholder during the period.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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Consolidated Statements Of Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Public Service Electric and Gas Company	Public Service Electric and Gas Company Common Stock [Member]	Public Service Electric and Gas Company Contributed Capital [Member]	Public Service Electric and Gas Company Basis Adjustment [Member]	Public Service Electric and Gas Company Retained Earnings [Member]	Public Service Electric and Gas Company Accumulated Other Comprehensive Income (Loss) [Member]	PSEG Power LLC	PSEG Power LLC Contributed Capital [Member]	PSEG Power LLC Basis Adjustment [Member]	PSEG Power LLC Retained Earnings [Member]	PSEG Power LLC Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance (in value) at Dec. 31, 2016	$ 13,130	$ 4,936	$ (717)	$ 9,174	$ (263)	$ 8,712	$ 892	$ 945	$ 986	$ 5,888	$ 1	$ 5,799	$ 2,214	$ (986)	$ 4,782	$ (211)
Beginning Balance, shares at Dec. 31, 2016		534	(29)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,574			1,574		973				973		479			479
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), net of tax	34				34	(1)					(1)	39				39
Comprehensive Income	1,608					972						518
Contributed Capital						150		150
Cash Dividends on Common Stock	(870)			(870)	0	(250)						(350)			(350)
Other	(21)	$ 25	$ (46)	0	0
Treasury Stock, Shares, Acquired			0
Ending Balance (in value) at Dec. 31, 2017	13,847	$ 4,961	$ (763)	9,878	(229)	9,834	892	1,095	986	6,861	0	5,967	2,214	(986)	4,911	(172)
Ending Balance, shares at Dec. 31, 2017		534	(29)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption				176	(176)										175	(175)
Net Income	1,438			1,438		1,067				1,067		365			365
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), net of tax	28				28	(1)					(1)	28				28
Comprehensive Income	1,466					1,066						393
Contributed Capital						0
Cash Dividends on Common Stock	(910)			(910)	0							(400)			(400)
Other	(26)	$ 19	$ (45)	0	0
Treasury Stock, Shares, Acquired		0	(1)
Ending Balance (in value) at Dec. 31, 2018	14,377	$ 4,980	$ (808)	10,582	(377)	10,900	892	1,095	986	7,928	(1)	5,960	2,214	(986)	5,051	(319)
Ending Balance, shares at Dec. 31, 2018		534	(30)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption	0			81	(81)							0			69	(69)
Net Income	1,693			1,693		1,250				1,250		468			468
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), net of tax	(31)				(31)	3					3	(13)				(13)
Comprehensive Income	1,662					1,253						455
Contributed Capital						0
Cash Dividends on Common Stock	(950)			(950)	0					(250)		(525)			(525)
Other	0	$ 23	$ (23)	0	0
Treasury Stock, Shares, Acquired		0	0
Ending Balance (in value) at Dec. 31, 2019	$ 15,089	$ 5,003	$ (831)	$ 11,406	$ (489)	$ 11,903	$ 892	$ 1,095	$ 986	$ 8,928	$ 2	$ 5,890	$ 2,214	$ (986)	$ 5,063	$ (401)
Ending Balance, shares at Dec. 31, 2019		534	(30)