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Income Tax - Summary of Reconciliation between the Charge to Net Income for Income Tax and the One that would Result from Applying the Prevailing Tax Rate on Net Income Before Income Tax Arising from the Consolidated Statements of Comprehensive Income (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]      
Net profit / (loss) before income tax $ 3,056 $ 715 $ (837)
Average tax rate 25.33% 34.55% 29.36%
Average tax rate applied to net profit / (loss) before income tax $ (774) $ (247) $ 246
Effect of the valuation of property, plant and equipment and intangible assets, net 154 501 (820)
Effect of exchange differences and other results associated to the valuation of the currency, net (112) (500) 338
Effect of the valuation of inventories (268) (108) (153)
Income on investments in associates and joint ventures 112 99 56
Effect of tax rate change (25) (439) 41
Effect of the regularization regime for the dispute associated to cost deduction for hydrocarbon wells abandonment 18 0 78
Interest related to the payment facility plan for the dispute associated to cost deduction for hydrocarbon wells abandonment 0 0 (8)
Miscellaneous 73 (5) 38
Income tax $ (822) $ (699) $ (184)