Financial and derivative instruments - Summary of net notional long/(short) position of derivative instruments (Detail) - Short - bbl bbl in Thousands	Mar. 31, 2024	Dec. 31, 2023
Crude Oil
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume	(3,950)	(4,450)
Products
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume	(2,060)	(490)

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480237/815-40-50-5

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