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Partnerships and Joint Ventures (Details) - USD ($) shares in Millions, $ in Millions | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Nov. 06, 2025 | Oct. 31, 2025 | Sep. 30, 2025 | Dec. 31, 2024
Variable interest entity, not primary beneficiary |  |  |  |
Variable interest entity information |  |  |  |
Net ( liability) assets |  |  | $ 4,600 | $ 2,400
Variable interest entity, not primary beneficiary | Future funding commitment |  |  |  |
Variable interest entity information |  |  |  |
Commitment amount |  |  | $ 48 |
NuScale |  |  |  |
Variable interest entity information |  |  |  |
Related party transaction, shares converted (in shares) |  |  | 15 |
Related party transaction, shares sold (in shares) |  |  | 10 |
Related party transaction, proceeds from sale of shares |  |  | $ 414 |
NuScale | Subsequent Event |  |  |  |
Variable interest entity information |  |  |  |
Related party transaction, shares converted (in shares) | 111 | 5 |  |
Related party transaction, proceeds from sale of shares |  | $ 191 |  |
Accrued liabilities | Related Party |  |  |  |
Variable interest entity information |  |  |  |
Investments loss position in other accrued liabilities |  |  | 58 | 292
Accounts and notes receivable, net | Related Party | Variable interest entity, not primary beneficiary |  |  |  |
Variable interest entity information |  |  |  |
Accounts receivable, net |  |  | $ 206 | $ 175

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