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Leases (Schedule of Operating Lease Expense) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024
Operating Lease Expense |  |
Total Operating Lease Expense | $ 248 | $ 204
Transportation and Processing [Member] |  |
Operating Lease Expense |  |
Total Operating Lease Expense | 40 | 2
Operating [Member] |  |
Operating Lease Expense |  |
Total Operating Lease Expense | 114 | 101
Administrative [Member] |  |
Operating Lease Expense |  |
Total Operating Lease Expense | $ 94 | $ 101

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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479041/842-20-45-4 + Details
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