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Income Taxes - Schedule Of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Unrecognized Tax Benefits [Roll Forward] |  |  |
Unrecognized Tax Benefits, Beginning Balance | $ 110 | $ 130 | $ 192
Increases as a Result of Positions Taken in a Prior Period | 18 | 16 | 9
Decreases as a Result of Positions Taken in a Prior Period | (4) | (25) | (40)
Increases as a Result of Positions Taken during the Current Period | 90 | 0 | 1
Decreases as a Result of Positions Taken during the Current Period | 0 | 0 | 0
Decreases as a Result of Settlements with Taxing Authorities | (4) | (10) | (28)
Decreases due to Lapses of Applicable Statute of Limitations | (1) | (1) | (4)
Unrecognized Tax Benefits, Ending Balance | 209 | 110 | 130
Accumulated Deferred Income Taxes Associated with Unrecognized Tax Benefits | (30) | (29) | (37)
Regulatory Asset-Unrecognized Tax Benefits | (1) | (2) | (8)
Total Amount of Unrecognized Tax Benefits that if Recognized, would Impact the Effective Tax Rate (including Interest and Penalties) | 178 | 79 | 85
Public Service Electric and Gas Company |  |  |
Unrecognized Tax Benefits [Roll Forward] |  |  |
Unrecognized Tax Benefits, Beginning Balance | 11 | 29 | 27
Increases as a Result of Positions Taken in a Prior Period | 0 | 2 | 2
Decreases as a Result of Positions Taken in a Prior Period | (3) | (12) | (2)
Increases as a Result of Positions Taken during the Current Period | 1 | 0 | 1
Decreases as a Result of Positions Taken during the Current Period | 0 | 0 | 0
Decreases as a Result of Settlements with Taxing Authorities | 0 | (7) | 0
Decreases due to Lapses of Applicable Statute of Limitations | (1) | (1) |
Unrecognized Tax Benefit, Increase Resulting from |  |  | 1
Unrecognized Tax Benefits, Ending Balance | 8 | 11 | 29
Accumulated Deferred Income Taxes Associated with Unrecognized Tax Benefits | (5) | (7) | (15)
Regulatory Asset-Unrecognized Tax Benefits | (1) | (2) | (8)
Total Amount of Unrecognized Tax Benefits that if Recognized, would Impact the Effective Tax Rate (including Interest and Penalties) | $ 2 | $ 2 | $ 6

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