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Leases (Right of Use) (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Operating Leases |  |
Operating lease right of use asset | $ 7,123 | $ 6,849
Operating lease liability - current included in Accounts payable and accrued liabilities | 1,852 | 1,617
Operating lease liability - noncurrent included in Other long-term obligations | 4,626 | 4,393
Total operating lease liability | $ 6,478 | $ 6,010
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Other assets, including intangibles – net | Other assets, including intangibles – net
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accounts payable and accrued liabilities | Accounts payable and accrued liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other long-term obligations | Other long-term obligations
Operating lease weighted average remaining lease term - years | 7 years | 8 years
Operating lease weighted average discount rate - percent | 4.90% | 3.90%
Leases, Finance [Abstract] |  |
Finance lease right of use asset | $ 2,888 | $ 2,712
Total finance lease liability | $ 2,361 | $ 2,042
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Property, plant and equipment, at cost, less accumulated depreciation and depletion | Property, plant and equipment, at cost, less accumulated depreciation and depletion
Finance lease weighted average remaining lease term - years | 18 years | 26 years
Finance lease weighted average discount rate - percent | 6.40% | 7.20%
Accounts Payable And Accrued Liabilities [Member] |  |
Leases, Finance [Abstract] |  |
Finance lease liability - current | $ 6 | $ 5
Notes And Loans Payable [Member] |  |
Leases, Finance [Abstract] |  |
Finance lease liability - current | 117 | 95
Long-Term Debt [Member] |  |
Leases, Finance [Abstract] |  |
Finance lease liability - noncurrent | 2,123 | 1,821
Long-Term Obligations To Equity Companies [Member] |  |
Leases, Finance [Abstract] |  |
Finance lease liability - noncurrent | 115 | 121
Drilling Rigs and Related Equipment [Member] |  |
Operating Leases |  |
Total operating lease liability | $ 2,198 | $ 2,032

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