Share Capital and Premium (Tables)

6 Months Ended

Jun. 30, 2019

Share Capital, Reserves And Other Equity Interest [Abstract]

Disclosure of Share Capital

		As at		As at		As at
		Jun		Jun		Dec
		2019		2018		2018
US Dollar million		Reviewed		Reviewed		Audited
Share capital
Authorised:
	600,000,000 ordinary shares of 25 SA cents each	23		23		23
	2,000,000 A redeemable preference shares of 50 SA cents each	—		—		—
	5,000,000 B redeemable preference shares of 1 SA cents each	—		—		—
	30,000,000 C redeemable preference shares at no par value	—		—		—
		23		23		23
Issued and fully paid:
	414,656,454 (June 2018: 411,611,313; Dec 2018: 412,769,980) ordinary shares in issue	16		16		16
	2,000,000 A redeemable preference shares of 50 SA cents each	—		—		—
	778,896 B redeemable preference shares of 1 SA cent each	—		—		—
		16		16		16
	Treasury shares held within the group
	2,778,896 A and B redeemable preference shares	—		—		—
		16		16		16
Share premium
Balance at beginning of period		7,208		7,171		7,171
Ordinary shares issued		21		23		37
		7,229		7,194		7,208
Less: held within the group
Redeemable preference shares		(53	)	(53	)	(53	)
Balance at end of period		7,176		7,141		7,155
Share capital and premium		7,192		7,157		7,171