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 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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Number of shares issued which are neither cancelled nor held in the treasury.

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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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This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.

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Number of increase (decrease) in shares of stock classified as other.

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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]	Noncontrolling Interest [Member]	PSE&G [Member]	PSE&G [Member] Common Stock [Member]	PSE&G [Member] Contributed Capital [Member]	PSE&G [Member] Basis Adjustment [Member]	PSE&G [Member] Retained Earnings [Member]	PSE&G [Member] Accumulated Other Comprehensive Income (Loss) [Member]	Power [Member]	Power [Member] Contributed Capital [Member]	Power [Member] Basis Adjustment [Member]	Power [Member] Retained Earnings [Member]	Power [Member] Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance (in value) at Dec. 31, 2014	$ 12,186	$ 4,876	$ (635)	$ 8,227	$ (283)	$ 1	$ 6,787	$ 892	$ 695	$ 986	$ 4,212	$ 2	$ 5,558	$ 2,214	$ (986)	$ 4,558	$ (228)
Beginning Balance, shares at Dec. 31, 2014		534	(28)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,679			1,679			787				787		856			856
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), net of tax	(12)				(12)	0	(1)					(1)	(12)				(12)
Comprehensive Income	1,667						786						844
Contributed Capital							0
Cash Dividends on Common Stock	(789)			(789)	0	0							(400)			(400)
Other	3	$ 39	$ (36)	0	0	0
Treasury Stock, Shares, Acquired			0
Ending Balance (in value) at Dec. 31, 2015	13,067	$ 4,915	$ (671)	9,117	(295)	1	7,573	892	695	986	4,999	1	6,002	2,214	(986)	5,014	(240)
Ending Balance, shares at Dec. 31, 2015		534	(28)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	887			887			889				889		18			18
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), net of tax	32				32		0					0	29				29
Comprehensive Income	919						889						47
Contributed Capital							250
Cash Dividends on Common Stock	(830)			(830)									(250)			(250)
Other	(26)	$ 21	$ (46)			1
Treasury Stock, Shares, Acquired			(1)
Ending Balance (in value) at Dec. 31, 2016	13,130	$ 4,936	$ (717)	9,174	(263)	0	8,712	892	945	986	5,888	1	5,799	2,214	(986)	4,782	(211)
Ending 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
Cash Dividends on Common Stock	(870)			(870)									(350)			(350)
Other	(21)	$ 25	$ (46)			0
Treasury Stock, Shares, Acquired			0
Ending Balance (in value) at Dec. 31, 2017	$ 13,847	$ 4,961	$ (763)	$ 9,878	$ (229)	$ 0	$ 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)