Earnings Per Share - Weighted Average Common Shares (Detail) - shares	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Weighted-average number of common shares outstanding	483,634,135	493,106,315
Weighted-average number of vested DSUs	251,366	337,716
Basic	483,885,501	493,444,031
Effect of stock options and TRSUs	1,044,104	1,060,473
Diluted	484,929,605	494,504,504

The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

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Weighted average number of shares basic.

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Weighted average number of vested DSUs.

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