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Accounts Receivable, Net (Tables)
9 Months Ended
Sep. 30, 2012
Receivables [Abstract]  
Provision for discounts and doubtful accounts
 20122011
 $’M$’M
 __________________________
As at January 1,31.123.4
Provision charged to operations214.9172.5
Provision utilization(196.5)(169.0)
 __________________________
As at September 30,49.526.9
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