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Investments (Tables)
12 Months Ended
Dec. 31, 2012
Investments [Abstract]  
Schedule of Investments
 December 31,December 31,
 20122011
 $’M$’M
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Investments in private companies18.412.8
Available-for-sale securities14.27.4
Equity method investments6.19.7
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 38.729.9
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