Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2018

Property, plant and equipment [abstract]

Schedule of 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, 2018	NOTE	NETWORK INFRASTRUCTURE AND EQUIPMENT		LAND AND BUILDINGS		ASSETS UNDER CONSTRUCTION		TOTAL(1)
COST
January 1, 2018		61,484		5,961		1,774		69,219
Additions		2,699		72		1,437		4,208
Acquisition through business combinations		144		49		—		193
Transfers		898		43		(1,447	)	(506	)
Retirements and disposals		(969	)	(54	)	—		(1,023	)
Impairment losses recognized in earnings	8	(8	)	—		—		(8	)
December 31, 2018		64,248		6,071		1,764		72,083
ACCUMULATED DEPRECIATION
January 1, 2018		41,949		3,241		—		45,190
Depreciation		2,923		222		—		3,145
Retirements and disposals		(931	)	(52	)	—		(983	)
Other		(107	)	(6	)	—		(113	)
December 31, 2018		43,834		3,405		—		47,239
NET CARRYING AMOUNT
January 1, 2018		19,535		2,720		1,774		24,029
December 31, 2018		20,414		2,666		1,764		24,844

(1) Includes assets under finance leases.

FOR THE YEAR ENDED DECEMBER 31, 2017	NETWORK INFRASTRUCTURE AND EQUIPMENT		LAND AND BUILDINGS		ASSETS UNDER CONSTRUCTION		TOTAL(1)
COST
January 1, 2017	58,670		5,572		1,374		65,616
Additions	2,491		70		1,587		4,148
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	61,484		5,961		1,774		69,219
ACCUMULATED DEPRECIATION
January 1, 2017	40,228		3,047		—		43,275
Depreciation	2,813		221		—		3,034
Retirements and disposals	(1,054	)	(19	)	—		(1,073	)
Other	(38	)	(8	)	—		(46	)
December 31, 2017	41,949		3,241		—		45,190
NET CARRYING AMOUNT
January 1, 2017	18,442		2,525		1,374		22,341
December 31, 2017	19,535		2,720		1,774		24,029

(1) Includes assets under finance leases.

Finance leases

Additions to and net carrying amount of assets under finance leases

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
	2018	2017	2018	2017
Network infrastructure and equipment	405	334	1,487	1,435
Land and buildings	1	2	460	467
Total	406	336	1,947	1,902

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, 2018		NOTE	2019		2020		2021		2022		2023		THERE- AFTER		TOTAL
Minimum future lease payments		26	586		513		344		276		238		667		2,624
Less:
	Future finance costs		(120	)	(101	)	(83	)	(66	)	(49	)	(108	)	(527	)
Present value of future lease obligations			466		412		261		210		189		559		2,097