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Accounts Receivable (Schedule Of Components Of Accounts Receivable) (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Joint interest billings | $ 367 | $ 341
Other | 32 | 42
Gross accounts receivable | 2,043 | 1,978
Allowance for doubtful accounts | (7) | (6)
Net accounts receivable | 2,036 | 1,972
Oil Gas And N G L Sales [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross accounts receivable | 1,151 | 1,130
Marketing And Midstream Revenues [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross accounts receivable | $ 493 | $ 465

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