Regulatory Matters (Details) - USD ($)				1 Months Ended	6 Months Ended
	Oct. 31, 2021	Feb. 15, 2021	Mar. 06, 2020	Nov. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Regulatory Matters Additional Narrative Information [Line Items]
Return on equity approved percentage	9.33%			9.19%
Defaulting Market Participant and Settlement of Regulatory Matters
Regulatory Matters Additional Narrative Information [Line Items]
Reduction to net income					$ 30,000,000	$ 880,000,000
Defaulting Market Participant and Settlement of Regulatory Matters | Minimum
Regulatory Matters Additional Narrative Information [Line Items]
Term to be paid					62 years
Defaulting Market Participant and Settlement of Regulatory Matters | Maximum
Regulatory Matters Additional Narrative Information [Line Items]
Term to be paid					83 years
Texas-based generating assets | Defaulting Market Participant and Settlement of Regulatory Matters
Regulatory Matters Additional Narrative Information [Line Items]
Market payment shortfall in collections					$ 16,000,000		$ 17,000,000
Peach Bottom Units 2 and 3
Regulatory Matters Additional Narrative Information [Line Items]
Operating license renewal period			20 years
ERCOT | Defaulting Market Participant and Settlement of Regulatory Matters
Regulatory Matters Additional Narrative Information [Line Items]
Market payment shortfall in collections					1,900,000,000		$ 2,500,000,000
ERCOT | Extreme Cold Weather Conditions
Regulatory Matters Additional Narrative Information [Line Items]
Administrative price cap		$ 9,000
ERCOT | Public Utility Commission of Texas
Regulatory Matters Additional Narrative Information [Line Items]
Securitized funds allocation					$ 2,100,000,000