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Gain (Loss) On Disposition Of Stock In Subsidiary, After Tax

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Number Of Tax Equity Projects

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Nominal number of units used to calculate payment on derivative.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount of depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries.

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Dispositions - Narrative (Details) $ in Millions		3 Months Ended	12 Months Ended
Dispositions - Narrative (Details) $ in Millions	Mar. 01, 2023 USD ($) project solarProject	Mar. 31, 2023 USD ($) MWh project	Dec. 31, 2022 USD ($)	Oct. 01, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of subsidiary	$ 855
Gain on sale of subsidiary, after tax	$ 791
Period to obtain consent (in years)		2 years
Number of solar projects	2	2
Unbilled Contracts Receivable		$ 49	$ 80		$ 20	$ 35
Clean Energy Businesses \| RWE
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimate of possible loss (up to)		61
Unbilled Contracts Receivable		49
Clean Energy Businesses \| RWE \| Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimate of possible loss (up to)		172
Disposal Group, Held-for-sale, Not Discontinued Operations \| Clean Energy Businesses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration from sale of business	$ 3,993			$ 6,800
Gain on sale of subsidiary		855
Gain on sale of subsidiary, after tax		$ 791
Tax equity projects \| project	2	3
Transaction costs, before tax		$ 11	48
Transaction costs, after tax		8	$ 35
Depreciation and amortization, before tax		41
Depreciation and amortization, after tax		$ 28
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Crane Project
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Holding period (in years)		5 years
Carrying value of tax equity interest		$ 20
Electric Energy (MWh)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Notional amount \| MWh		30,093,325
Broken Bow II \| Electric Energy (MWh) \| Clean Energy Businesses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred projects \| project	1	1
Notional amount \| MWh		75