Earnings Per Share - Additional Information (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings per share [abstract]
Profit attributable to equity shareholders of the Company used in calculating basic earnings per share	¥ 107,843	¥ 106,641	¥ 117,781
Weighted average number of shares	20,475,482,897	20,475,482,897	20,475,482,897
Profit attributable to equity shareholders of the Company used in calculating diluted earnings per share	¥ 107,843	¥ 106,050	¥ 117,781
Dilution impact on weighted average number of shares	20,475,482,897	20,475,482,897	20,475,482,897

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

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- Definition

The profit (loss) attributable to ordinary equity holders of the parent entity. [Refer: Profit (loss)]

+ References

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The profit (loss) attributable to ordinary equity holders of the parent entity, adjusted for the effects of all dilutive potential ordinary shares. [Refer: Profit (loss)]

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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.

+ References

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