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Supplemental Information to Statements of Cash Flows (Schedule Of Supplemental Information To Statements Of Cash Flows) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Changes in assets and liabilities, net: |  |  |  |
Accounts receivable | $ 0 | $ 364 | $ 0 | $ (439)
Other current assets | 0 | (84) | 0 | (105)
Other long-term assets | 0 | 9 | 0 | 84
Accounts payable and revenues and royalties payable | 0 | (313) | 0 | 474
Other current liabilities | 0 | (208) | 0 | (107)
Other long-term liabilities | 0 | (3) | 0 | (87)
Total | (61) | (235) | (189) | (180)
Supplementary cash flow data: |  |  |  |
Interest paid | 77 | 100 | 266 | 285
Income taxes paid | $ 50 | $ 253 | $ 309 | $ 363

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