4 Share capital



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Non-equity
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Equity
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    Special Share
of £1
Preference
shares
of £1 each
Nominal
value
£m
Ordinary
shares
of 20p each
Millions
Nominal
value
£m
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Authorised            
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At January 1, 2007 and December 31, 2008   1 50,000 2,500 500
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Issued and fully paid            
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At January 1, 2007   1 1,781 356
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Exercise of share options   24 5
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B Share conversion into ordinary shares   15 3
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At January 1, 2008   1 1,820 364
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Exercise of share options   12 2
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B Share conversion into ordinary shares   12 3
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At December 31, 2008   1 1,844 369
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The rights attaching to each class of share are set out in the Directors' report.

In accordance with FRS 25 Financial instruments: Presentation, the Company’s non-cumulative redeemable convertible preference shares (B Shares) are classified as financial liabilities. Accordingly, movements in B Shares are included in note 3.