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Earnings per share ("EPS") - Reconciliation Between Shares Used in Calculating Basic and Diluted EPS (Details) - shares shares in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Earnings per share [abstract]
Weighted average shares used in basic EPS calculation (shares)	1,077	1,075
Other potentially issuable shares (shares)	16	17
Weighted average shares used in diluted EPS calculation (shares)	1,093	1,092

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2025-01-01
-Paragraph 70
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-URIDate 2025-03-27

+ Details

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Period Type:	duration

X

- References

No definition available.

+ Details

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X

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2025-01-01
-Paragraph 70
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2025-en-r&anchor=para_70_b&doctype=Standard
-URIDate 2025-03-27

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X

- Definition

Other potentially issuable shares.

+ References

No definition available.

+ Details

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