Group assets and liabilities by business type - Notes (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Analysis of operating segments
Property, plant and equipment	$ 405		$ 478
Additions to property, plant and equipment	26	$ 24
Additions to right-of-use assets	12	$ 5
Premiums receivable	718		912
Accruals, deferred income and other creditors	8,103		7,983
Within one year
Analysis of operating segments
Premiums receivable	688		872
Accruals, deferred income and other creditors	$ 5,737		$ 5,972

The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment]

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The amount of additions to right-of-use assets. [Refer: Right-of-use assets]

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The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period.

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