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v3.25.4

Fair Value Measurements - Recurring Basis (Details) - USD ($) shares in Millions, $ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Nov. 30, 2025 | Dec. 31, 2025 | Dec. 31, 2024
Fair value of assets and liabilities measured on recurring basis |  |  |  |  |
Investment in NuScale(1) | [1] |  | $ 1,579 |  | $ 0
Trading securities |  |  | 2 |  | 18
NuScale |  |  |  |  |
Fair value of assets and liabilities measured on recurring basis |  |  |  |  |
Related party transaction, shares converted (in shares) |  | 71 |  |  |
Carrying Value |  |  |  |  |
Fair value of assets and liabilities measured on recurring basis |  |  |  |  |
Investment in NuScale(1) |  |  | 1,579 |  | 2,266
NuScale forward contract |  |  |  |  |
Fair value of assets and liabilities measured on recurring basis |  |  |  |  |
Asset Derivatives |  |  | 208 |  | 0
Level 1 |  |  |  |  |
Fair value of assets and liabilities measured on recurring basis |  |  |  |  |
Trading securities |  |  | 2 |  | 18
Level 1 | Carrying Value |  |  |  |  |
Fair value of assets and liabilities measured on recurring basis |  |  |  |  |
Investment in NuScale(1) |  |  | 1,579 | [1] | 2,266
Level 1 | NuScale forward contract |  |  |  |  |
Fair value of assets and liabilities measured on recurring basis |  |  |  |  |
Asset Derivatives |  |  | 0 |  | $ 0
Level 2 | NuScale forward contract |  |  |  |  |
Fair value of assets and liabilities measured on recurring basis |  |  |  |  |
Asset Derivatives |  |  | 208 |  |
Level 3 | NuScale forward contract |  |  |  |  |
Fair value of assets and liabilities measured on recurring basis |  |  |  |  |
Asset Derivatives |  |  | $ 0 |  |
[1] | (1) Our investment in NuScale was included in Investments as of December 31, 2024.

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