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v3.23.1

Derivative Instruments (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Indexed debt securities derivative | Gains (Losses) in Other Income (Expense) |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Gain (loss) on derivative instruments not designated as hedging instruments | $ (39) | $ 106 |
Not Designated as Hedging Instrument |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Assets Fair Value | 1 |  | $ 12
Derivative Liabilities Fair Value | 617 |  | 578
Not Designated as Hedging Instrument | CERC |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Assets Fair Value | 1 |  | 9
Derivative Liabilities Fair Value | 0 |  | 0
Not Designated as Hedging Instrument | Current Assets | Energy Related Derivative |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Assets Fair Value | 1 |  | 9
Derivative Liabilities Fair Value | 0 |  | 0
Not Designated as Hedging Instrument | Current Assets | Energy Related Derivative | CERC |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Assets Fair Value | 1 |  | 7
Derivative Liabilities Fair Value | 0 |  | 0
Not Designated as Hedging Instrument | Current Assets | Interest rate contract |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Assets Fair Value | 0 |  | 1
Derivative Liabilities Fair Value | 0 |  | 0
Not Designated as Hedging Instrument | Other Current Assets | Energy Related Derivative |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Assets Fair Value | 0 |  | 2
Derivative Liabilities Fair Value | 0 |  | 0
Not Designated as Hedging Instrument | Other Current Assets | Energy Related Derivative | CERC |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Assets Fair Value | 0 |  | 2
Derivative Liabilities Fair Value | 0 |  | 0
Not Designated as Hedging Instrument | Current Liabilities | Indexed debt securities derivative |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Assets Fair Value | 0 |  | 0
Derivative Liabilities Fair Value | 617 |  | 578
Economic hedge | Interest rate contract |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Economic hedge | $ 84 |  | $ 84

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