Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property, plant and equipment [abstract]

Disclosure of detailed information about property, plant and equipment

	ESTIMATED USEFUL LIFE
Property, plant and equipment
Network infrastructure and equipment	2 to 40 years
Buildings	5 to 50 years
Finite-life intangible assets
Software	2 to 12 years
Customer relationships	3 to 26 years
Program and feature film rights	Up to 5 years

FOR THE YEAR ENDED DECEMBER 31, 2017	NETWORK INFRASTRUCTURE AND EQUIPMENT		LAND AND BUILDINGS		ASSETS UNDER CONSTRUCTION		TOTAL(1)
COST
January 1, 2017	58,680		5,572		1,374		65,626
Additions	2,492		70		1,587		4,149
Acquisition through business combinations	653		264		76		993
Transfers	775		77		(1,263	)	(411	)
Retirements and disposals	(1,105	)	(22	)	—		(1,127	)
December 31, 2017	61,495		5,961		1,774		69,230
ACCUMULATED DEPRECIATION
January 1, 2017	40,233		3,047		—		43,280
Depreciation	2,816		221		—		3,037
Retirements and disposals	(1,054	)	(19	)	—		(1,073	)
Other	(39	)	(8	)	—		(47	)
December 31, 2017	41,956		3,241		—		45,197
NET CARRYING AMOUNT
January 1, 2017	18,447		2,525		1,374		22,346
December 31, 2017	19,539		2,720		1,774		24,033

(1) Includes assets under finance leases.

FOR THE YEAR ENDED DECEMBER 31, 2016	NOTE	NETWORK INFRASTRUCTURE AND EQUIPMENT		LAND AND BUILDINGS		ASSETS UNDER CONSTRUCTION		TOTAL(1)
COST
January 1, 2016		57,233		5,174		1,287		63,694
Additions		2,361		120		1,415		3,896
Acquisition through business combinations		32		282		1		315
Transfers		692		35		(1,325	)	(598	)
Retirements and disposals		(1,637	)	(39	)	(4	)	(1,680	)
Impairment losses recognized in earnings	8	(1	)	—		—		(1	)
December 31, 2016		58,680		5,572		1,374		65,626
ACCUMULATED DEPRECIATION
January 1, 2016		39,183		2,881		—		42,064
Depreciation		2,672		205		—		2,877
Retirements and disposals		(1,591	)	(35	)	—		(1,626	)
Other		(31	)	(4	)	—		(35	)
December 31, 2016		40,233		3,047		—		43,280
NET CARRYING AMOUNT
January 1, 2016		18,050		2,293		1,287		21,630
December 31, 2016		18,447		2,525		1,374		22,346

(1) Includes assets under finance leases.

Finance leases

Disclosure of recognised finance lease as assets by lessee

The following table shows additions to and the net carrying amount of assets under finance leases.

FOR THE YEAR ENDED DECEMBER 31	ADDITIONS		NET CARRYING AMOUNT
	2017	2016	2017	2016
Network infrastructure and equipment	334	375	1,435	1,580
Land and buildings	2	72	467	506
Total	336	447	1,902	2,086

Disclosure of reconciliation of minimum future lease payments

The following table provides a reconciliation of our minimum future lease payments to the present value of our finance lease obligations.

AT DECEMBER 31, 2017		NOTE	2018		2019		2020		2021		2022		THERE- AFTER		TOTAL
Minimum future lease payments		24	572		501		326		278		248		883		2,808
Less:
	Future finance costs		(127	)	(111	)	(96	)	(80	)	(65	)	(157	)	(636	)
Present value of future lease obligations			445		390		230		198		183		726		2,172