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Segmented Information - Schedule of Aggregates External Revenues by Customer (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue from External Customer [Line Items]
Sales	$ 42,797	$ 37,840
General Motors [Member]
Revenue from External Customer [Line Items]
Sales	6,162	5,903
Daimler AG [Member]
Revenue from External Customer [Line Items]
Sales	5,785	4,953
BMW [Member]
Revenue from External Customer [Line Items]
Sales	5,334	5,243
Ford Motor Company [Member]
Revenue from External Customer [Line Items]
Sales	5,317	4,904
Stellantis [Member]
Revenue from External Customer [Line Items]
Sales	5,246	5,013
Volkswagen [Member]
Revenue from External Customer [Line Items]
Sales	4,684	3,872
Other Customers [Member]
Revenue from External Customer [Line Items]
Sales	$ 10,269	$ 7,952

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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