XML 57 R41.htm IDEA: XBRL DOCUMENT v3.10.0.1
PROPERTY, PLANT AND EQUIPMENT (Tables)
 12 Months Ended
Dec. 31, 2018
Property, plant and equipment [abstract]  
Disclosure of detailed information about property, plant and equipment
We depreciate property, plant and equipment over its estimated useful life by charging depreciation expense to net income as follows:
Asset
Basis
Estimated useful life
Buildings
Diminishing balance
5 to 40 years
Cable and wireless network
Straight-line
3 to 40 years
Computer equipment and software
Straight-line
4 to 10 years
Customer premise equipment
Straight-line
3 to 6 years
Leasehold improvements
Straight-line
Over shorter of estimated useful life or lease term
Equipment and vehicles
Diminishing balance
3 to 20 years
(In millions of dollars)
December 31, 2018
 
December 31, 2017
 
December 31, 2016
 
 
Cost

Accumulated depreciation

Net carrying amount

Cost

Accumulated depreciation

Net carrying amount

Cost

Accumulated depreciation

Net carrying amount

 
 
 
 

 
 
 

 
 
 
Land and buildings
1,125

(428
)
697

1,090

(397
)
693

1,062

(375
)
687

Cable and wireless networks
21,024

(13,550
)
7,474

20,252

(13,206
)
7,046

20,108

(13,035
)
7,073

Computer equipment and software
5,514

(3,305
)
2,209

4,996

(2,807
)
2,189

4,296

(2,424
)
1,872

Customer premise equipment
1,908

(1,279
)
629

1,565

(1,090
)
475

1,560

(1,156
)
404

Leasehold improvements
539

(250
)
289

496

(220
)
276

457

(193
)
264

Equipment and vehicles
1,292

(810
)
482

1,246

(782
)
464

1,169

(720
)
449

 
 
 
 

 
 
 

 
 
 
Total property, plant and equipment
31,402

(19,622
)
11,780

29,645

(18,502
)
11,143

28,652

(17,903
)
10,749


The tables below summarize the changes in the net carrying amounts of property, plant and equipment during 2018 and 2017.
(In millions of dollars)
December 31, 2017

 
December 31, 2018
 
 
Net carrying
amount

Additions 1

Depreciation

Other 2

Net carrying amount

 
 
 
 
 
 

Land and buildings
693

40

(32
)
(4
)
697

Cable and wireless networks
7,046

1,556

(1,128
)
—

7,474

Computer equipment and software
2,189

653

(633
)
—

2,209

Customer premise equipment
475

423

(269
)
—

629

Leasehold improvements
276

44

(31
)
—

289

Equipment and vehicles
464

99

(81
)
—

482

 
 
 
 
 
 
Total property, plant and equipment
11,143

2,815

(2,174
)
(4
)
11,780

1 
Excludes proceeds on disposition of $25 million (see note 28).
2 
Includes disposals, reclassifications, and other adjustments.
(In millions of dollars)
December 31, 2016

 
December 31, 2017
 
 
Net carrying
amount

Additions 1

Depreciation

Other 2

Net carrying amount

 
 
 
 
 
 

Land and buildings
687

61

(30
)
(25
)
693

Cable and wireless networks
7,073

1,125

(1,150
)
(2
)
7,046

Computer equipment and software
1,872

867

(549
)
(1
)
2,189

Customer premise equipment
404

315

(244
)
—

475

Leasehold improvements
264

40

(28
)
—

276

Equipment and vehicles
449

102

(86
)
(1
)
464

 
 
 
 
 
 
Total property, plant and equipment
10,749

2,510

(2,087
)
(29
)
11,143

1 
Excludes proceeds on disposition of $74 million (see note 28).
2 
Includes disposals, reclassifications, and other adjustments.