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Share capital and other equity - Non-cumulative preference shares (Details) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Series U, Non-cumulative preference shares of US$0.01
Share capital
Par value	$ 0.01
Number of shares	10,130
Redemption price per share	$ 100,000
Non-cumulative preference shares of 0.01
Share capital
Par value	$ 0.01
Number of shares	10,000	10,000

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The number of shares issued by the entity.

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The nominal value per share.

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