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v3.25.3

Fair Value Measurements, Recurring (Details) - Fair Value, Recurring [Member] - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Assets |  |
Investments in AFS debt securities | $ 27 | $ 26
Total gross fair value, assets | 458 | 529
Effect of counterparty netting | (328) | (402)
Effect of cash collateral netting | 0 | 0
Net carrying value on balance sheet, assets | 130 | 127
Liabilities |  |
Blending program obligations | 134 | 13
Total gross fair value, liabilities | 482 | 464
Effect of counterparty netting | (328) | (402)
Effect of cash collateral netting | (13) | (46)
Net carrying value on balance sheet, liabilities | 141 | 16
Assets Held in Trust [Member] |  |
Assets |  |
Investments of certain benefit plans | 94 | 93
Commodity Contracts [Member] |  |
Assets |  |
Derivative contracts | 333 | 402
Effect of counterparty netting | (328) | (402)
Effect of cash collateral netting | 0 | 0
Derivative contracts, net assets | 5 | 0
Cash collateral received not offset | 0 | 0
Liabilities |  |
Derivative contracts | 341 | 448
Effect of counterparty netting | (328) | (402)
Effect of cash collateral netting | (13) | (46)
Derivative contracts, net liabilities | 0 | 0
Cash collateral paid not offset | (66) | (71)
Foreign Currency Contracts [Member] |  |
Assets |  |
Derivative contracts, not subject to netting | 4 | 6
Physical Purchase Contracts [Member] |  |
Assets |  |
Derivative contracts, not subject to netting |  | 2
Liabilities |  |
Derivative contracts, not subject to netting | 7 | 3
Level 1 [Member] |  |
Assets |  |
Investments in AFS debt securities | 1 | 6
Total gross fair value, assets | 428 | 503
Liabilities |  |
Blending program obligations | 0 | 0
Total gross fair value, liabilities | 341 | 448
Level 1 [Member] | Assets Held in Trust [Member] |  |
Assets |  |
Investments of certain benefit plans | 90 | 89
Level 1 [Member] | Commodity Contracts [Member] |  |
Assets |  |
Derivative contracts | 333 | 402
Liabilities |  |
Derivative contracts | 341 | 448
Level 1 [Member] | Foreign Currency Contracts [Member] |  |
Assets |  |
Derivative contracts, not subject to netting | 4 | 6
Level 1 [Member] | Physical Purchase Contracts [Member] |  |
Assets |  |
Derivative contracts, not subject to netting |  | 0
Liabilities |  |
Derivative contracts, not subject to netting | 0 | 0
Level 2 [Member] |  |
Assets |  |
Investments in AFS debt securities | 26 | 20
Total gross fair value, assets | 26 | 22
Liabilities |  |
Blending program obligations | 134 | 13
Total gross fair value, liabilities | 141 | 16
Level 2 [Member] | Assets Held in Trust [Member] |  |
Assets |  |
Investments of certain benefit plans | 0 | 0
Level 2 [Member] | Commodity Contracts [Member] |  |
Assets |  |
Derivative contracts | 0 | 0
Liabilities |  |
Derivative contracts | 0 | 0
Level 2 [Member] | Foreign Currency Contracts [Member] |  |
Assets |  |
Derivative contracts, not subject to netting | 0 | 0
Level 2 [Member] | Physical Purchase Contracts [Member] |  |
Assets |  |
Derivative contracts, not subject to netting |  | 2
Liabilities |  |
Derivative contracts, not subject to netting | 7 | 3
Level 3 [Member] |  |
Assets |  |
Investments in AFS debt securities | 0 | 0
Total gross fair value, assets | 4 | 4
Liabilities |  |
Blending program obligations | 0 | 0
Total gross fair value, liabilities | 0 | 0
Level 3 [Member] | Assets Held in Trust [Member] |  |
Assets |  |
Investments of certain benefit plans | 4 | 4
Level 3 [Member] | Commodity Contracts [Member] |  |
Assets |  |
Derivative contracts | 0 | 0
Liabilities |  |
Derivative contracts | 0 | 0
Level 3 [Member] | Foreign Currency Contracts [Member] |  |
Assets |  |
Derivative contracts, not subject to netting | 0 | 0
Level 3 [Member] | Physical Purchase Contracts [Member] |  |
Assets |  |
Derivative contracts, not subject to netting |  | 0
Liabilities |  |
Derivative contracts, not subject to netting | $ 0 | $ 0

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