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Classification and measurement of financial instruments - Summary of Fair Value Measurement Hierarchy of Assets and Liabilities (Detail) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Liabilities |  |
Loans and other borrowings | $ (2,396) | $ (2,845)
GBP173m 3.875% bonds 2022 [member] |  |
Liabilities |  |
Loans and other borrowings | 0 | (233)
EUR500m 1.625% bonds 2024 [member] |  |
Liabilities |  |
Loans and other borrowings | (534) | (565)
GBP300m 3.75% bonds 2025 [member] |  |
Liabilities |  |
Loans and other borrowings | (365) | (408)
GBP350m 2.125% bonds 2026 [member] |  |
Liabilities |  |
Loans and other borrowings | (423) | (473)
EUR500m 2.125% bonds 2027 [member] |  |
Liabilities |  |
Loans and other borrowings | (539) | (570)
GBP400m 3.375% bonds 2028 [member] |  |
Liabilities |  |
Loans and other borrowings | (480) | (537)
Fair value [member] | GBP173m 3.875% bonds 2022 [member] |  |
Liabilities |  |
Loans and other borrowings | 0 | (239)
Fair value [member] | EUR500m 1.625% bonds 2024 [member] |  |
Liabilities |  |
Loans and other borrowings | (511) | (585)
Fair value [member] | GBP300m 3.75% bonds 2025 [member] |  |
Liabilities |  |
Loans and other borrowings | (344) | (428)
Fair value [member] | GBP350m 2.125% bonds 2026 [member] |  |
Liabilities |  |
Loans and other borrowings | (367) | (471)
Fair value [member] | EUR500m 2.125% bonds 2027 [member] |  |
Liabilities |  |
Loans and other borrowings | (492) | (601)
Fair value [member] | GBP400m 3.375% bonds 2028 [member] |  |
Liabilities |  |
Loans and other borrowings | $ (417) | $ (566)

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