Condensed Consolidated Statements of Stockholders Equity Condensed Consolidated Statements of Stockholders Equity - USD ($) shares in Millions, $ in Millions	Total		Common Stock [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Public Service Electric and Gas Company [Member]	Public Service Electric and Gas Company [Member] Common Stock [Member]	Public Service Electric and Gas Company [Member] Retained Earnings [Member]	Public Service Electric and Gas Company [Member] AOCI Attributable to Parent [Member]	Public Service Electric and Gas Company [Member] Contributed Capital [Member]	Public Service Electric and Gas Company [Member] Basis Adjustment [Member]	PSEG Power [Member]	PSEG Power [Member] Retained Earnings [Member]	PSEG Power [Member] AOCI Attributable to Parent [Member]	PSEG Power [Member] Contributed Capital [Member]	PSEG Power [Member] Basis Adjustment [Member]
Shares, Outstanding			534	(30)
Cumulative Effect Adjustment					$ 81	$ (81)							$ 0	$ 69	$ (69)
Total Stockholder's Equity	$ 14,377		$ 4,980	$ (808)	10,582	(377)	$ 10,900	$ 892	$ 7,928	$ (1)	$ 1,095	$ 986	5,960	5,051	(319)	$ 2,214	$ (986)
Net Income	1,256	[1]			1,256		974		974				309	309
Other Comprehensive Income (Loss), Net of Tax	20					20	3			3			29		29
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	1,276						977						338
Dividends, Common Stock, Cash	(713)				(713)	0							(525)	(525)
Stockholders' Equity, Other	(15)		$ 9	$ (24)	0	0
Stockholders' Equity, Other Shares			0	0
Shares, Outstanding			534	(30)
Total Stockholder's Equity	14,754		$ 4,980	$ (835)	11,041	(432)	11,532	892	8,558	1	1,095	986	6,000	5,126	(354)	2,214	(986)
Net Income	403				403		344		344				53	53
Other Comprehensive Income (Loss), Net of Tax	(6)					(6)	1			1			(5)		(5)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	397						345						48
Dividends, Common Stock, Cash	(238)				(238)	0							(275)	(275)
Stockholders' Equity, Other	12		$ 9	$ 3	0	0
Stockholders' Equity, Other Shares			0	0
Shares, Outstanding			534	(30)
Total Stockholder's Equity	14,925		$ 4,989	$ (832)	11,206	(438)	11,877	892	8,902	2	1,095	986	5,773	4,904	(359)	2,214	(986)
Shares, Outstanding			534	(30)
Cumulative Effect Adjustment	(2)				(2)		(2)		(2)
Total Stockholder's Equity	15,089		$ 5,003	$ (831)	11,406	(489)	11,903	892	8,928	2	1,095	986	5,890	5,063	(401)	2,214	(986)
Net Income	1,474	[1]			1,474		1,036		1,036				437	437
Other Comprehensive Income (Loss), Net of Tax	37					37	1			1			27		27
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	1,511						1,037						464
Dividends, Common Stock, Cash	(743)				(743)	0	(175)		(175)				(175)	(175)
Stockholders' Equity, Other	(19)		$ 13	$ (32)	0	0
Stockholders' Equity, Other Shares			0	0
Shares, Outstanding			534	(30)
Total Stockholder's Equity	15,491		$ 5,003	$ (865)	11,808	(455)	12,450	892	9,474	3	1,095	986	6,100	5,246	(374)	2,214	(986)
Net Income	575	[1]			575		313		313				254	254
Other Comprehensive Income (Loss), Net of Tax	3					3	0			0			0		0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	578						313						254
Dividends, Common Stock, Cash	(248)				(248)	0							(175)
Stockholders' Equity, Other	15		$ 13	$ 2	0	0
Stockholders' Equity, Other Shares			0	0
Shares, Outstanding			534	(30)
Total Stockholder's Equity	$ 15,836		$ 5,016	$ (863)	$ 12,135	$ (452)	$ 12,763	$ 892	$ 9,787	$ 3	$ 1,095	$ 986	$ 6,179	$ 5,325	$ (374)	$ 2,214	$ (986)

[1] Includes an after-tax gain of $86 million in the three months and nine months ended September 30, 2020 related to the sale of PSEG Power’s interest in the Yards Creek generation facility and an after-tax loss of $286 million in the nine months ended September 30, 2019 related to the sale of PSEG Power’s ownership interests in the Keystone and Conemaugh fossil generation plants. See Item 1. Note 4. Early Plant Retirements/Asset Dispositions for additional information.