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Accounts Receivable, Net (Tables)
9 Months Ended
Sep. 30, 2013
Receivables [Abstract]  
Provision for discounts and doubtful accounts
 20132012
 $’M$’M
 __________________________
As at January 1,41.731.1
Provision charged to operations225.3214.9
Provision utilization(215.4)(196.5)
 __________________________
As at September 30,51.649.5
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