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Derivative Financial Instruments (Schedule Of Derivative Financial Instruments Included In The Consolidated Balance Sheets) (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Derivatives Fair Value [Line Items] |  |
Gross Fair Value | $ 134 | $ 23
Amounts Netted | 0 | 0
Net Fair Value | 134 | 23
Short-term Derivative Asset [Member] |  |
Derivatives Fair Value [Line Items] |  |
Gross Fair Value | 165 | 78
Amounts Netted | (13) | (23)
Net Fair Value | 152 | 55
Long-term Derivative Asset [Member] |  |
Derivatives Fair Value [Line Items] |  |
Gross Fair Value | 5 | 5
Amounts Netted | (2) | (4)
Net Fair Value | 3 | 1
Short-term Derivative Liability [Member] |  |
Derivatives Fair Value [Line Items] |  |
Gross Fair Value | (15) | (37)
Amounts Netted | 13 | 23
Net Fair Value | (2) | (14)
Long-term Derivative Liability [Member] |  |
Derivatives Fair Value [Line Items] |  |
Gross Fair Value | (21) | (23)
Amounts Netted | 2 | 4
Net Fair Value | $ (19) | $ (19)

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