
		Owned assets												Right-of-use lease assets (Note 19)
				Buildings and
		Network		leasehold						Assets under				Network		Real
(millions)	Note	assets		improvements		Other		Land		construction		Total		assets		estate		Other		Total		Total
AT COST
As at January 1, 2019
As previously reported		$	29,956	$	3,273	$	1,174	$	48	$	779	$	35,230	$	—	$	—	$	—	$	—	$	35,230
IFRS 16, Leases transitional amount	2(c )		—		—		—		—		—		—		—		1,011		30		1,041		1,041
Reclassification arising from implementation of IFRS 16			(101)		—		(1)		—		—		(102)		101		—		1		102		—
As adjusted			29,855		3,273		1,173		48		779		35,128		101		1,011		31		1,143		36,271
Additions			445		15		67		—		598		1,125		71		156		5		232		1,357
Additions arising from business acquisitions	18(b )		36		—		3		—		—		39		—		4		—		4		43
Dispositions, retirements and other			(447)		(91)		(40)		—		—		(578)		(1)		(5)		—		(6)		(584)
Assets under construction put into service			517		44		50		—		(611)		—		—		—		—		—		—
Net foreign exchange differences			—		—		—		—		—		—		—		(8)		—		(8)		(8)
As at June 30, 2019		$	30,406	$	3,241	$	1,253	$	48	$	766	$	35,714	$	171	$	1,158	$	36	$	1,365	$	37,079
ACCUMULATED DEPRECIATION
As at January 1, 2019
As previously reported		$	20,300	$	2,050	$	789	$	—	$	—	$	23,139	$	—	$	—	$	—	$	—	$	23,139
Reclassification arising from implementation of IFRS 16			(1)		—		—		—		—		(1)		1		—		—		1		—
As adjusted			20,299		2,050		789		—		—		23,138		1		—		—		1		23,139
Depreciation 1			721		59		62		—		—		842		4		89		5		98		940
Dispositions, retirements and other			(436)		(88)		(29)		—		—		(553)		—		—		4		4		(549)
As at June 30, 2019		$	20,584	$	2,021	$	822	$	—	$	—	$	23,427	$	5	$	89	$	9	$	103	$	23,530
NET BOOK VALUE
As at December 31, 2018		$	9,656	$	1,223	$	385	$	48	$	779	$	12,091	$	—	$	—	$	—	$	—	$	12,091
As at June 30, 2019		$	9,822	$	1,220	$	431	$	48	$	766	$	12,287	$	166	$	1,069	$	27	$	1,262	$	13,549

(1)

For the six-month period ended June 30, 2019, deprecation includes $5 in respect of impairment of real estate right-of-use lease assets.