Basis of preparation and summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2021

Statement [LineItems]

Disclosure of Estimated Useful Lives

The estimated useful lives are as follows:

Mobile network infrastructure	4 - 20	years
Fixed network infrastructure	3 - 25	years
Call center equipment	4 - 8	years
Buildings	21 - 25	years
Equipment, fixtures and fittings	2 - 10	years
Motor vehicles	4 - 6	years
Electricity power plant	20	years
Leasehold improvements	3 - 5	years

Disclosure of Estimated Useful Lives for Investment Properties

Investment Property 25 - 45 years

Telecommunication licenses

Statement [LineItems]

Disclosure of Useful Lives for the Intangible Assets

Telecommunications licenses 3 – 25 years

Computer software

Statement [LineItems]

Disclosure of Useful Lives for the Intangible Assets

Computer software 3 – 8 years

Other intangible assets

Statement [LineItems]

Disclosure of Useful Lives for the Intangible Assets

Amortization is recognized in the statement of profit or loss on a straight-line basis over the estimated useful lives. The useful lives for computer software are as follows:

Indefeasible right of use	15	years
Transmission line software	5 - 10	years
Brand name	9 - 10	years
Customer base	2 - 15	years
Subscriber acquisition cost	2 - 6	years
Electricity production license	20	years