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v3.23.1

Fair Value of Financial Instruments - Derivative Fair Value Measurements (Details) $ in Millions | Mar. 31, 2023 USD ($) $ / MWh | Dec. 31, 2022 USD ($) $ / MWh
--- | --- | ---
Liabilities |  |
Derivative liabilities | $ 6,243 | $ 8,441
Commodity contracts |  |
Assets |  |
Derivative assets | 7,725 | 11,976
Liabilities |  |
Derivative liabilities | 6,116 | 8,439
Interest rate contracts |  |
Assets |  |
Derivative assets | 10 |
Liabilities |  |
Derivative liabilities | 15 |
Level 3 |  |
Assets |  |
Derivative assets | 1,034 | 1,251
Liabilities |  |
Derivative liabilities | 674 | 746
Level 3 | Commodity contracts |  |
Assets |  |
Derivative assets | 1,034 | 1,251
Liabilities |  |
Derivative liabilities | 563 | 746
Level 3 | Commodity contracts | Natural Gas Contracts |  |
Assets |  |
Derivative assets | 152 | 340
Liabilities |  |
Derivative liabilities | $ 196 | $ 448
Level 3 | Commodity contracts | Natural Gas Contracts | Low | Valuation Technique, Discounted Cash Flow | Forward Market Price (perMMBtu) or (per MWh) |  |
Fair Value Inputs / Range |  |
Derivative asset/liability, measurement input | $ / MWh | 1 | 2
Level 3 | Commodity contracts | Natural Gas Contracts | High | Valuation Technique, Discounted Cash Flow | Forward Market Price (perMMBtu) or (per MWh) |  |
Fair Value Inputs / Range |  |
Derivative asset/liability, measurement input | $ / MWh | 17 | 48
Level 3 | Commodity contracts | Natural Gas Contracts | Weighted Average | Valuation Technique, Discounted Cash Flow | Forward Market Price (perMMBtu) or (per MWh) |  |
Fair Value Inputs / Range |  |
Derivative asset/liability, measurement input | $ / MWh | 4 | 6
Level 3 | Commodity contracts | Power Contracts |  |
Assets |  |
Derivative assets | $ 827 | $ 843
Liabilities |  |
Derivative liabilities | $ 292 | $ 216
Level 3 | Commodity contracts | Power Contracts | Low | Valuation Technique, Discounted Cash Flow | Forward Market Price (perMMBtu) or (per MWh) |  |
Fair Value Inputs / Range |  |
Derivative asset/liability, measurement input | $ / MWh | 2 | 3
Level 3 | Commodity contracts | Power Contracts | High | Valuation Technique, Discounted Cash Flow | Forward Market Price (perMMBtu) or (per MWh) |  |
Fair Value Inputs / Range |  |
Derivative asset/liability, measurement input | $ / MWh | 326 | 431
Level 3 | Commodity contracts | Power Contracts | Weighted Average | Valuation Technique, Discounted Cash Flow | Forward Market Price (perMMBtu) or (per MWh) |  |
Fair Value Inputs / Range |  |
Derivative asset/liability, measurement input | $ / MWh | 45 | 48
Level 3 | Commodity contracts | FTRs |  |
Assets |  |
Derivative assets | $ 55 | $ 68
Liabilities |  |
Derivative liabilities | $ 75 | $ 82
Level 3 | Commodity contracts | FTRs | Low | Valuation Technique, Discounted Cash Flow | Auction Prices (per MWh) |  |
Fair Value Inputs / Range |  |
Derivative asset/liability, measurement input | (30) | (32)
Level 3 | Commodity contracts | FTRs | High | Valuation Technique, Discounted Cash Flow | Auction Prices (per MWh) |  |
Fair Value Inputs / Range |  |
Derivative asset/liability, measurement input | 145 | 610
Level 3 | Commodity contracts | FTRs | Weighted Average | Valuation Technique, Discounted Cash Flow | Auction Prices (per MWh) |  |
Fair Value Inputs / Range |  |
Derivative asset/liability, measurement input | 0 | 0
Level 3 | Interest rate contracts |  |
Assets |  |
Derivative assets | $ 0 |
Liabilities |  |
Derivative liabilities | $ 0 |
Level 3 | Interest rate contracts | Low | Valuation Technique, Discounted Cash Flow | Collateral Prepayment Rate |  |
Fair Value Inputs / Range |  |
Derivative liability, measurement input | 0.0200 |
Level 3 | Interest rate contracts | Low | Valuation Technique, Discounted Cash Flow | Loss Severity Rates |  |
Fair Value Inputs / Range |  |
Derivative liability, measurement input | 0.0600 |
Level 3 | Interest rate contracts | High | Valuation Technique, Discounted Cash Flow | Collateral Prepayment Rate |  |
Fair Value Inputs / Range |  |
Derivative liability, measurement input | 0.0300 |
Level 3 | Interest rate contracts | High | Valuation Technique, Discounted Cash Flow | Loss Severity Rates |  |
Fair Value Inputs / Range |  |
Derivative liability, measurement input | 0.3600 |
Level 3 | Interest rate contracts | Weighted Average | Valuation Technique, Discounted Cash Flow | Collateral Prepayment Rate |  |
Fair Value Inputs / Range |  |
Derivative liability, measurement input | 0.0287 |
Level 3 | Interest rate contracts | Weighted Average | Valuation Technique, Discounted Cash Flow | Loss Severity Rates |  |
Fair Value Inputs / Range |  |
Derivative liability, measurement input | 0.1088 |
Level 3 | Interest rate contracts | Consumer Financing Program |  |
Assets |  |
Derivative assets | $ 0 |
Liabilities |  |
Derivative liabilities | $ 111 |
Level 3 | Interest rate contracts | Consumer Financing Program | Low | Valuation Technique, Discounted Cash Flow | Collateral Default Rate |  |
Fair Value Inputs / Range |  |
Derivative liability, measurement input | 0.0180 |
Level 3 | Interest rate contracts | Consumer Financing Program | High | Valuation Technique, Discounted Cash Flow | Collateral Default Rate |  |
Fair Value Inputs / Range |  |
Derivative liability, measurement input | 0.5250 |
Level 3 | Interest rate contracts | Consumer Financing Program | Weighted Average | Valuation Technique, Discounted Cash Flow | Collateral Default Rate |  |
Fair Value Inputs / Range |  |
Derivative liability, measurement input | 0.0616 |

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