Valuation And Qualifying Accounts (Schedule Of Valuation And Qualifying Accounts) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Allowance For Doubtful Accounts [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		$ 339	[1]	$ 337		$ 206	[1]
Additions, Charged to cost and expenses	[2]	100		114		195
Additions, Charged to other accounts-describe		0		0		0
Deductions-describe	[3]	156		112		64
Balance at End of Period		283		339	[1]	337
Allowance For Doubtful Accounts [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period				337
Balance at End of Period						337
Materials And Supplies Valuation Reserve [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		10		12		10
Additions, Charged to cost and expenses		4		1		3
Additions, Charged to other accounts-describe		0		0		0
Deductions-describe	[4]	0		3		1
Balance at End of Period		14		10		12
Public Service Electric and Gas Company | Allowance For Doubtful Accounts [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		339	[5]	337		206	[1]
Additions, Charged to cost and expenses	[6]	100		114		195
Additions, Charged to other accounts-describe		0		0		0
Deductions-describe	[7]	156		112		64
Balance at End of Period		283		339	[5]	337
Public Service Electric and Gas Company | Allowance For Doubtful Accounts [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period				337
Balance at End of Period						337
Public Service Electric and Gas Company | Materials And Supplies Valuation Reserve [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		4		3		2
Additions, Charged to cost and expenses		3		1		2
Additions, Charged to other accounts-describe		0		0		0
Deductions-describe		0		0	[8]	1
Balance at End of Period		$ 7		$ 4		$ 3

[1]

[2] For a discussion of bad debt recoveries, see Item 8. Note 1. Organization, Basis of Presentation and Summary of Significant Accounting Policies.

[3] Accounts Receivable written off.

[4] Reserve reduced to appropriate level as a result of asset dispositions and to remove obsolete inventory.

[5]

[6] For a discussion of bad debt recoveries, see Item 8. Note 1. Organization, Basis of Presentation and Summary of Significant Accounting Policies.

[7] Accounts Receivable written off.

[8] Reserve reduced to appropriate level and to remove obsolete inventory.