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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, 2023 | Dec. 31, 2022
--- | --- | ---
Liabilities |  |
Loans and other borrowings | $ 3,166 | $ 2,396
EUR500m 1.625% bonds 2024 [member] |  |
Liabilities |  |
Loans and other borrowings | 555 | 534
GBP300m 3.75% bonds 2025 [member] |  |
Liabilities |  |
Loans and other borrowings | 387 | 365
GBP350m 2.125% bonds 2026 [member] |  |
Liabilities |  |
Loans and other borrowings | 449 | 423
EUR500m 2.125% bonds 2027 [member] |  |
Liabilities |  |
Loans and other borrowings | 559 | 539
GBP400m 3.375% bonds 2028 [member] |  |
Liabilities |  |
Loans and other borrowings | 509 | 480
EUR600m 4.375% bonds 2029 [member] |  |
Liabilities |  |
Loans and other borrowings | 663 |
Fair value [member] | EUR500m 1.625% bonds 2024 [member] |  |
Liabilities |  |
Loans and other borrowings | 545 | 511
Fair value [member] | GBP300m 3.75% bonds 2025 [member] |  |
Liabilities |  |
Loans and other borrowings | 373 | 344
Fair value [member] | GBP350m 2.125% bonds 2026 [member] |  |
Liabilities |  |
Loans and other borrowings | 416 | 367
Fair value [member] | EUR500m 2.125% bonds 2027 [member] |  |
Liabilities |  |
Loans and other borrowings | 535 | 492
Fair value [member] | GBP400m 3.375% bonds 2028 [member] |  |
Liabilities |  |
Loans and other borrowings | 476 | $ 417
Fair value [member] | EUR600m 4.375% bonds 2029 [member] |  |
Liabilities |  |
Loans and other borrowings | $ 689 |

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