Derivative Financial Instruments (Schedule Of Derivative Financial Instruments Included In The Consolidated Balance Sheets) (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Derivatives Fair Value [Line Items] | ||
| Gross Fair Value | $ 104 | $ 23 |
| Amounts Netted | 0 | 0 |
| Net Fair Value | 104 | 23 |
| Short-term Derivative Asset [Member] | ||
| Derivatives Fair Value [Line Items] | ||
| Gross Fair Value | 190 | 78 |
| Amounts Netted | (29) | (23) |
| Net Fair Value | 161 | 55 |
| Long-term Derivative Asset [Member] | ||
| Derivatives Fair Value [Line Items] | ||
| Gross Fair Value | 10 | 5 |
| Amounts Netted | (5) | (4) |
| Net Fair Value | 5 | 1 |
| Short-term Derivative Liability [Member] | ||
| Derivatives Fair Value [Line Items] | ||
| Gross Fair Value | (55) | (37) |
| Amounts Netted | 29 | 23 |
| Net Fair Value | (26) | (14) |
| Long-term Derivative Liability [Member] | ||
| Derivatives Fair Value [Line Items] | ||
| Gross Fair Value | (41) | (23) |
| Amounts Netted | 5 | 4 |
| Net Fair Value | $ (36) | $ (19) |