GROUP STATEMENT OF CHANGES IN EQUITY - USD ($) $ in Millions	Share capital	Share premium	Capital redemption reserve	Treasury shares	Other reserves	[1]	Retained earnings	Total
Balance at beginning of period at Dec. 31, 2018	$ 177	$ 608	$ 18	$ (214)	$ (340)		$ 4,625	$ 4,874
Attributable profit for the year							600	600
Other comprehensive (expense)/income					16		(12)	4
Equity dividends declared and paid							(318)	(318)
Share-based payments recognised							32	32
Taxation on share-based payments							1	1
Purchase of own shares				(63)				(63)
Cost of shares transferred to beneficiaries				38			(29)	9
Cancellation of treasury shares				50			(50)
Issue of ordinary share capital		2						2
Balance at end of period at Dec. 31, 2019	177	610	18	(189)	(324)		4,849	5,141
Attributable profit for the year							448	448
Other comprehensive (expense)/income					(5)		6	1
Equity dividends declared and paid							(328)	(328)
Share-based payments recognised							26	26
Taxation on share-based payments							(4)	(4)
Purchase of own shares				(16)				(16)
Cost of shares transferred to beneficiaries				37			(28)	9
Cancellation of treasury shares				11			(11)
Issue of ordinary share capital		2						2
Balance at end of period at Dec. 31, 2020	177	612	18	(157)	(329)		4,958	5,279
Attributable profit for the year							524	524
Other comprehensive (expense)/income					(17)		57	40
Equity dividends declared and paid							(329)	(329)
Share-based payments recognised							41	41
Taxation on share-based payments							(1)	(1)
Purchase of own shares				0
Cost of shares transferred to beneficiaries				37			(25)	12
Issue of ordinary share capital		2						2
Balance at end of period at Dec. 31, 2021	$ 177	$ 614	$ 18	$ (120)	$ (346)		$ 5,225	$ 5,568

[1] Attributable to equity holders of the Company and wholly derived from continuing operations.