Derivatives and Other Financial Instruments - Schedule of Outstanding Quantities of Derivative Instruments (Detail) - Level 1 [Member] kt in Thousands, € in Millions, kr in Millions, R$ in Millions	Mar. 31, 2023 EUR (€) kt	Mar. 31, 2023 NOK (kr) kt	Mar. 31, 2023 BRL (R$) kt	Mar. 31, 2022 EUR (€) kt	Mar. 31, 2022 NOK (kr) kt	Mar. 31, 2022 BRL (R$) kt
Foreign Exchange Buy Forwards
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative Liabilities	€ 55	kr 256	R$ 1,047	€ 80	kr 0	R$ 1,323
Commodity Sell Forwards
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Outstanding quantities of derivative instruments	398	398	398	534	534	534
Commodity Buy Forwards
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Outstanding quantities of derivative instruments	316	316	316	245	245	245