Derivative Financial Instruments and Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Fair value measurements
Other liabilities, derivatives	$ (1)	$ (4)
Recurring
Fair value measurements
Total assets	29
Total liabilities	(1,971)	(2,090)
Recurring \| Commodity Contract
Fair value measurements
Other liabilities, derivatives		(4)
Recurring \| Long-term debt and finance lease obligations
Fair value measurements
Long-term debt and finance lease obligations, net of current portion (long-term debt)	(1,388)	(1,394)
Recurring \| RFS Obligation \| Other current liabilities
Fair value measurements
Other liabilities, fair value disclosure	(582)	(692)
Recurring \| Derivative Financial Instruments, Liabilities
Fair value measurements
Other liabilities, derivatives	(1)
Recurring \| Derivative Financial Instruments, Assets
Fair value measurements
Prepaid expenses and other current assets (derivative financial instruments)	29
Recurring \| Level 1
Fair value measurements
Total assets	0
Total liabilities	0	0
Recurring \| Level 1 \| Commodity Contract
Fair value measurements
Other liabilities, derivatives		0
Recurring \| Level 1 \| Long-term debt and finance lease obligations
Fair value measurements
Long-term debt and finance lease obligations, net of current portion (long-term debt)	0	0
Recurring \| Level 1 \| RFS Obligation \| Other current liabilities
Fair value measurements
Other liabilities, fair value disclosure	0	0
Recurring \| Level 1 \| Derivative Financial Instruments, Liabilities
Fair value measurements
Other liabilities, derivatives	0
Recurring \| Level 1 \| Derivative Financial Instruments, Assets
Fair value measurements
Prepaid expenses and other current assets (derivative financial instruments)	0
Recurring \| Level 2
Fair value measurements
Total assets	29
Total liabilities	(1,971)	(2,090)
Recurring \| Level 2 \| Commodity Contract
Fair value measurements
Other liabilities, derivatives		(4)
Recurring \| Level 2 \| Long-term debt and finance lease obligations
Fair value measurements
Long-term debt and finance lease obligations, net of current portion (long-term debt)	(1,388)	(1,394)
Recurring \| Level 2 \| RFS Obligation \| Other current liabilities
Fair value measurements
Other liabilities, fair value disclosure	(582)	(692)
Recurring \| Level 2 \| Derivative Financial Instruments, Liabilities
Fair value measurements
Other liabilities, derivatives	(1)
Recurring \| Level 2 \| Derivative Financial Instruments, Assets
Fair value measurements
Prepaid expenses and other current assets (derivative financial instruments)	29
Recurring \| Level 3
Fair value measurements
Total assets	0
Total liabilities	0	0
Recurring \| Level 3 \| Commodity Contract
Fair value measurements
Other liabilities, derivatives		0
Recurring \| Level 3 \| Long-term debt and finance lease obligations
Fair value measurements
Long-term debt and finance lease obligations, net of current portion (long-term debt)	0	0
Recurring \| Level 3 \| RFS Obligation \| Other current liabilities
Fair value measurements
Other liabilities, fair value disclosure	0	$ 0
Recurring \| Level 3 \| Derivative Financial Instruments, Liabilities
Fair value measurements
Other liabilities, derivatives	0
Recurring \| Level 3 \| Derivative Financial Instruments, Assets
Fair value measurements
Prepaid expenses and other current assets (derivative financial instruments)	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Fair value of financial and nonfinancial obligations.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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- Definition

Fair value portion of other liabilities.

+ References

No definition available.

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