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Financial Instruments And Derivatives - Financial Instruments (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Total Gross Assets & Liabilities [Domain] |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Derivative assets | $ 4,429 | $ 6,275
Advances to/receivables from equity companies | 6,633 | 7,008
Other long-term financial assets | 2,972 | 2,333
Derivative liabilities | 4,977 | 5,664
Long-term debt | 30,697 | 32,560
Long-term obligations to equity companies | 1,393 | 1,896
Other long-term financial liabilities | $ 583 | $ 697
Derivative asset, current, statement of financial position [Extensible Enumeration] | Other assets, including intangibles – net, Receivables, Net, Current | Other assets, including intangibles – net, Receivables, Net, Current
Derivative liability, current, statement of financial position [Extensible Enumeration] | Accounts payable and accrued liabilities, Other long-term obligations | Accounts payable and accrued liabilities, Other long-term obligations
Effect Of Counterparty Netting [Member] |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Derivative assets | $ (3,913) | $ (5,177)
Derivative liabilities | (3,913) | (5,177)
Effect Of Collateral Netting [Member] |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Derivative assets | (3) | (528)
Derivative liabilities | (341) | (40)
Difference In Carrying Value And Fair Value [Member] |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Advances to/receivables from equity companies | 451 | 519
Other long-term financial assets | 247 | 202
Long-term debt | 3,935 | 3,102
Long-term obligations to equity companies | (47) | (92)
Other long-term financial liabilities | 57 | 45
Net Carrying Value [Member] |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Derivative assets | 513 | 570
Advances to/receivables from equity companies | 7,084 | 7,527
Other long-term financial assets | 3,219 | 2,535
Derivative liabilities | 723 | 447
Long-term debt | 34,632 | 35,662
Long-term obligations to equity companies | 1,346 | 1,804
Other long-term financial liabilities | 640 | 742
Level 1 [Member] |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Derivative assets | 3,223 | 4,544
Other long-term financial assets | 1,468 | 1,389
Derivative liabilities | 3,561 | 4,056
Long-term debt | 28,884 | 30,556
Level 2 [Member] |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Derivative assets | 1,206 | 1,731
Advances to/receivables from equity companies | 2,466 | 2,517
Derivative liabilities | 1,416 | 1,608
Long-term debt | 1,813 | 2,004
Level 3 [Member] |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Advances to/receivables from equity companies | 4,167 | 4,491
Other long-term financial assets | 1,504 | 944
Long-term obligations to equity companies | 1,393 | 1,896
Other long-term financial liabilities | $ 583 | $ 697

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