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Cash and cash equivalents and investment securities - Summary of Investments in Short-Term Debt Securities (Detail) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Disclosure of detailed information about borrowings [abstract] |  |
Investment in unquoted companies | $ 151 | $ 149
Investment in debt securities | 27 | 26
Non-current investments | 178 | 175
Investment in debt securities | 67 | 97
Current investments | $ 67 | $ 97

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