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v3.25.1

Hedging Activities and Fair Value Measurements, Recurring Fair Value Measurements (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Financial assets [Abstract] |  |
Interest rate derivatives | $ 2 |
Value before application of CME Rule 814 | 1,032 | $ 798
Impact of CME Rule 814 | (355) | (223)
Total commodity derivatives | 677 | 575
Total | 679 | 575
Commodity derivatives: |  |
Value before application of CME Rule 814 | 967 | 716
Impact of CME Rule 814 | (416) | (221)
Total commodity derivatives | 551 | 495
Total | 551 | 495
Net value before application of CME Rule 814 to commodity hedging portfolio | 65 |
Level 1 [Member] |  |
Financial assets [Abstract] |  |
Interest rate derivatives | 0 |
Value before application of CME Rule 814 | 292 | 355
Impact of CME Rule 814 | (57) | (56)
Total commodity derivatives | 235 | 299
Total | 235 | 299
Commodity derivatives: |  |
Value before application of CME Rule 814 | 330 | 291
Impact of CME Rule 814 | (125) | (43)
Total commodity derivatives | 205 | 248
Total | 205 | 248
Level 2 [Member] |  |
Financial assets [Abstract] |  |
Interest rate derivatives | 2 |
Value before application of CME Rule 814 | 740 | 443
Impact of CME Rule 814 | (298) | (167)
Total commodity derivatives | 442 | 276
Total | 444 | 276
Commodity derivatives: |  |
Value before application of CME Rule 814 | 637 | 404
Impact of CME Rule 814 | (291) | (157)
Total commodity derivatives | 346 | 247
Total | 346 | 247
Level 3 [Member] |  |
Financial assets [Abstract] |  |
Interest rate derivatives | 0 |
Value before application of CME Rule 814 | 0 | 0
Impact of CME Rule 814 | 0 | 0
Total commodity derivatives | 0 | 0
Total | 0 | 0
Commodity derivatives: |  |
Value before application of CME Rule 814 | 0 | 21
Impact of CME Rule 814 | 0 | (21)
Total commodity derivatives | 0 | 0
Total | $ 0 | $ 0

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