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Earnings/(Loss) per Share - Disclosure of weighted-average number of ordinary shares (Details) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Basic
Weighted Average number of ordinary shares [Line Items]
Issued ordinary shares at January 1 (in shares)		287,796,585	285,885,025	285,370,619
Effect of shares issued (in shares)	690,772	705,958	233,048
Effect of dilutive shares (in shares)	0	0	0
Effect of treasury shares purchased (in shares)	(3,727,922)	0	0
Weighted average number of ordinary shareholders at December 31 to calculate basic earnings per share (in shares)	284,759,435	286,590,983	285,603,667
Diluted
Weighted Average number of ordinary shares [Line Items]
Issued ordinary shares at January 1 (in shares)		287,796,585	285,885,025	285,370,619
Effect of shares issued (in shares)	690,772	705,958	233,048
Effect of dilutive shares (in shares)	0	0	7,252,246
Effect of treasury shares purchased (in shares)	(3,727,922)	0	0
Weighted average number of ordinary shareholders at December 31 to calculate diluted earnings per share (in shares)	284,759,435	286,590,983	292,855,913

X

- Definition

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]]

+ References

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- Definition

The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options.

+ References

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- Definition

The increase (decrease) in the number of ordinary shares issued. [Refer: Ordinary shares [member]]

+ References

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- Definition

The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares]

+ References

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- Definition

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.

+ References

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