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v3.23.2

Hedging Activities and Fair Value Measurements, Recurring Fair Value Measurements (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financial assets [Abstract] |  |
Interest rate derivatives |  | $ 26
Value before application of CME Rule 814 | $ 1,131 | 1,336
Impact of CME Rule 814 | (757) | (850)
Total commodity derivatives | 374 | 486
Total | 374 | 512
Commodity derivatives: |  |
Value before application of CME Rule 814 | 1,041 | 1,213
Impact of CME Rule 814 | (659) | (801)
Total commodity derivatives | 382 | 412
Total | 382 | 412
Net value before application of CME Rule 814 to commodity hedging portfolio | 90 |
Level 1 [Member] |  |
Financial assets [Abstract] |  |
Interest rate derivatives |  | 0
Value before application of CME Rule 814 | 147 | 166
Impact of CME Rule 814 | (109) | (161)
Total commodity derivatives | 38 | 5
Total | 38 | 5
Commodity derivatives: |  |
Value before application of CME Rule 814 | 80 | 95
Impact of CME Rule 814 | (42) | (90)
Total commodity derivatives | 38 | 5
Total | 38 | 5
Level 2 [Member] |  |
Financial assets [Abstract] |  |
Interest rate derivatives |  | 26
Value before application of CME Rule 814 | 984 | 1,170
Impact of CME Rule 814 | (648) | (689)
Total commodity derivatives | 336 | 481
Total | 336 | 507
Commodity derivatives: |  |
Value before application of CME Rule 814 | 961 | 1,118
Impact of CME Rule 814 | (617) | (711)
Total commodity derivatives | 344 | 407
Total | 344 | 407
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 | 0
Impact of CME Rule 814 | 0 | 0
Total commodity derivatives | 0 | 0
Total | $ 0 | $ 0

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