Trust Investments - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) Facility
Schedule of Trust Investments [Line Items]
Number of Nuclear Facilities | Facility	5
Nuclear Decommissioning Trust (NDT) Fund [Member]
Schedule of Trust Investments [Line Items]
Decommissioning Liability, Noncurrent	$ 1,000
Nuclear Decommissioning Trust (NDT) Fund [Member] | Minimum [Member]
Schedule of Trust Investments [Line Items]
Decommissioning Costs Including Contingencies	3,600
Nuclear Decommissioning Trust (NDT) Fund [Member] | Maximum [Member]
Schedule of Trust Investments [Line Items]
Decommissioning Costs Including Contingencies	3,800
Debt Securities [Member] | Nuclear Decommissioning Trust (NDT) Fund [Member]
Schedule of Trust Investments [Line Items]
After tax amount of net unrealized gains (losses) recognized in AOCI	(69)
Debt Securities [Member] | Rabbi Trust [Member]
Schedule of Trust Investments [Line Items]
After tax amount of net unrealized gains (losses) recognized in AOCI	(24)
Equity Securities [Member] | Nuclear Decommissioning Trust (NDT) Fund [Member]
Schedule of Trust Investments [Line Items]
Unrealized Gains (Losses) on Equity Securities still held	99
Equity Securities [Member] | Rabbi Trust [Member]
Schedule of Trust Investments [Line Items]
Unrealized Gains (Losses) on Equity Securities still held	$ 1