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Investments (Tables)
12 Months Ended
Dec. 31, 2011
Investments [Abstract]  
Schedule of Investments
 December 31,December 31,
 20112010
 $’M$’M
 ________________________
Investments in private companies12.85.9
Available-for-sale securities7.483.9
Equity method investments9.711.8
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 29.9101.6
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