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Accounts Receivable, Net (Tables)
12 Months Ended
Dec. 31, 2014
Receivables [Abstract]  
Provision for discounts and doubtful accounts
 201420132012
 $’M$’M$’M
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As at January 1,47.941.731.1
Provision charged to operations338.2306.8283.3
Provision utilization(337.6)(300.6)(272.7)
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As at December 31,48.547.941.7
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