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Inventories - Schedule of Lower of Cost or Market Reserve Activity (Details) $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($)
Inventory Valuation Reserves [Roll Forward]
Beginning balance	$ 289.0
Lower of cost or market inventory valuation adjustments	31.0
Ending balance	320.0
Refining
Inventory Valuation Reserves [Roll Forward]
Beginning balance	189.0
Lower of cost or market inventory valuation adjustments	56.0
Ending balance	245.0
Renewables
Inventory Valuation Reserves [Roll Forward]
Beginning balance	100.0
Lower of cost or market inventory valuation adjustments	(25.0)
Ending balance	$ 75.0

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- Definition

Inventory Valuation Reserves

+ References

No definition available.

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- Definition

The difference between the change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods and any LIFO decrement which have been reflected in the statement of income during the period.

+ References

No definition available.

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- Definition

Amount of valuation reserve for inventory.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 330
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.BB)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480581/330-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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