Earnings per share - Profit attributable to ordinary shareholders (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Earnings per share [abstract]
Profit attributable to shareholders of the parent company	$ 8,915	$ 5,968	$ 7,949
Dividend payable on preference shares classified as equity	0	0	(7)
Coupon payable on capital securities classified as equity	(626)	(637)	(666)
Profit attributable to ordinary shareholders of the parent company	$ 8,289	$ 5,331	$ 7,276

Adjustment To Profit (Loss) For Capital Securities Classified As Equity

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- Definition

Adjustment to profit (loss) for non-participating preference share dividends to calculate profit (loss) attributable to ordinary equity holders of the parent entity. [Refer: Preference shares [member]; Profit (loss)]

+ References

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-Section Example 12 Calculation and presentation of basic and diluted earnings per share (comprehensive example)
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- References

No definition available.

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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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- Definition

The profit (loss) from continuing and discontinued operations attributable to owners of the parent. [Refer: Profit (loss)]

+ References

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