XML 58 R71.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
PROPERTY, PLANT AND EQUIPMENT - Estimated Useful Lives (Details)
 12 Months Ended
Dec. 31, 2019
Buildings | Minimum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 5 years
Buildings | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 40 years
Cable and wireless network | Minimum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 3 years
Cable and wireless network | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 40 years
Computer equipment and software | Minimum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 4 years
Computer equipment and software | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 10 years
Customer premise equipment | Minimum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 3 years
Customer premise equipment | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 6 years
Equipment and vehicles | Minimum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 3 years
Equipment and vehicles | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life 20 years