Early Plant Retirements/Asset Dispositions Early Plant Retirements/Asset Dispositions (Details) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Early Plant Retirements [Abstract]
ZEC Charge per kwh		$ 0.004
Proceeds from Divestiture of Businesses		1,920,000,000
Impairment of Long-Lived Assets to be Disposed of	$ 519,000,000	43,000,000		$ 2,691,000,000
ZEC Charge per MWh		10
Early Plant Retirements/Asset Dispositions [Line Items]
Impairment of Long-Lived Assets to be Disposed of	$ 519,000,000	43,000,000		$ 2,691,000,000
Proceeds from Divestiture of Businesses		$ 1,920,000,000
Other Production-Solar
Early Plant Retirements [Abstract]
Gain (Loss) on Disposition			$ 63,000,000
Deferred ITC previously recognized			185,000,000
Disposal group, gain (loss) on sale tax impact			62,000,000
Early Plant Retirements/Asset Dispositions [Line Items]
Gain (Loss) on Disposition			63,000,000
Deferred ITC previously recognized			185,000,000
Disposal group, gain (loss) on sale tax impact			$ 62,000,000