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Financial Instruments and Derivatives (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Total Gross Assets & Liabilities [Domain] |  |
Fair value balance sheet grouping financial statement captions [Line Items] |  |
Derivative assets | $ 7,914 | $ 4,429
Advances to/receivables from equity companies | 6,778 | 6,633
Other long-term financial assets | 3,067 | 2,972
Derivative liabilities | 7,769 | 4,977
Long-term debt | 28,032 | 30,697
Long-term obligations to equity companies | 1,181 | 1,393
Other long-term financial liabilities | 406 | 583
Effect of Counterparty Netting |  |
Fair value balance sheet grouping financial statement captions [Line Items] |  |
Derivative assets | (7,037) | (3,913)
Derivative liabilities | (7,037) | (3,913)
Effect of Collateral Netting |  |
Fair value balance sheet grouping financial statement captions [Line Items] |  |
Derivative assets | (141) | (3)
Derivative liabilities | (213) | (341)
Difference in Carrying Value and Fair Value |  |
Fair value balance sheet grouping financial statement captions [Line Items] |  |
Advances to/receivables from equity companies | 258 | 451
Other long-term financial assets | 250 | 247
Long-term debt | 2,726 | 3,935
Long-term obligations to equity companies | (36) | (47)
Other long-term financial liabilities | 13 | 57
Net Carrying Value |  |
Fair value balance sheet grouping financial statement captions [Line Items] |  |
Derivative assets | 736 | 513
Advances to/receivables from equity companies | 7,036 | 7,084
Other long-term financial assets | 3,317 | 3,219
Derivative liabilities | 519 | 723
Long-term debt | 30,758 | 34,632
Long-term obligations to equity companies | 1,145 | 1,346
Other long-term financial liabilities | $ 419 | $ 640
Derivative Asset, Statement of Financial Position [Extensible Enumeration] | Other assets, including intangibles – net, Notes and accounts receivable – net | Other assets, including intangibles – net, Notes and accounts receivable – net
Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Accounts payable and accrued liabilities, Long-term obligations | Accounts payable and accrued liabilities, Long-term obligations
Level 1 |  |
Fair value balance sheet grouping financial statement captions [Line Items] |  |
Derivative assets | $ 6,312 | $ 3,223
Other long-term financial assets | 1,508 | 1,468
Derivative liabilities | 6,381 | 3,561
Long-term debt | 25,221 | 28,884
Level 2 |  |
Fair value balance sheet grouping financial statement captions [Line Items] |  |
Derivative assets | 1,602 | 1,206
Advances to/receivables from equity companies | 1,931 | 2,466
Derivative liabilities | 1,388 | 1,416
Long-term debt | 2,811 | 1,813
Level 3 |  |
Fair value balance sheet grouping financial statement captions [Line Items] |  |
Advances to/receivables from equity companies | 4,847 | 4,167
Other long-term financial assets | 1,559 | 1,504
Long-term obligations to equity companies | 1,181 | 1,393
Other long-term financial liabilities | $ 406 | $ 583

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