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SIGNIFICANT ACCOUNTING POLICIES - Schedule of Intangible Assets (Details) - Top of range
12 Months Ended
Dec. 31, 2017
Water and sewage concession agreements  
Disclosure of detailed information about intangible assets [line items]  
Intangible asset amortization periods 40 years
Computer software  
Disclosure of detailed information about intangible assets [line items]  
Intangible asset amortization periods 10 years
Customer relationships  
Disclosure of detailed information about intangible assets [line items]  
Intangible asset amortization periods 30 years
Patents, trademarks and proprietary technology  
Disclosure of detailed information about intangible assets [line items]  
Intangible asset amortization periods 40 years
Product development costs  
Disclosure of detailed information about intangible assets [line items]  
Intangible asset amortization periods 5 years
Distribution networks  
Disclosure of detailed information about intangible assets [line items]  
Intangible asset amortization periods 25 years
Loyalty program  
Disclosure of detailed information about intangible assets [line items]  
Intangible asset amortization periods 15 years