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Other Assets - Summary of Other Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Preproduction costs related to long-term supply agreements	$ 694	$ 683
Long-term receivables	209	217
Unrealized gain on cash flow hedges [note 21]	16	24
Pension overfunded status [note 17[a]]	4	22
Other, net	40	50
Total other assets	$ 963	$ 996

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Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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The carrying amount as of the balance sheet date of capitalized preproduction costs incurred on long-term supply arrangements, including recoverable costs to design and develop products.

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