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Segmental information - additional information - Disclosure of sales revenue by destination (Detail) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 100.00% | 100.00% |
Consolidated sales revenue | $ 26,667 | $ 29,775 | [1]
Greater China |  |  |
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 58.10% | 54.60% |
Consolidated sales revenue | $ 15,482 | $ 16,261 |
United States of America |  |  |
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 14.60% | 16.30% |
Consolidated sales revenue | $ 3,885 | $ 4,848 |
Asia (excluding Greater China and Japan) |  |  |
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 7.30% | 6.60% |
Consolidated sales revenue | $ 1,957 | $ 1,958 |
Japan |  |  |
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 6.70% | 6.80% |
Consolidated sales revenue | $ 1,791 | $ 2,039 |
Europe (excluding UK) |  |  |
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 5.80% | 6.70% |
Consolidated sales revenue | $ 1,537 | $ 1,995 |
Canada |  |  |
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 2.90% | 3.10% |
Consolidated sales revenue | $ 785 | $ 933 |
Australia |  |  |
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 1.70% | 2.00% |
Consolidated sales revenue | $ 451 | $ 596 |
UK |  |  |
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 0.20% | 0.40% |
Consolidated sales revenue | $ 66 | $ 133 |
Other countries |  |  |
Disclosure of geographical areas [line items] |  |  |
Sales revenue by destination (as a percent) | 2.70% | 3.50% |
Consolidated sales revenue | $ 713 | $ 1,012 |
[1] | Comparative information has been restated to reflect the adoption of narrow scope amendments to IAS12 'Income Taxes', refer to note 2 for details.

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