XML 160 R120.htm IDEA: XBRL DOCUMENT v3.20.4
property, plant and equipment (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
property, plant and equipment    
Property, plant and equipment at beginning of period $ 14,232  
Depreciation 2,107 $ 1,929
Property, plant and equipment at end of period 15,014 14,232
Additions in respect of asset retirement obligations 157 153
Contractual commitments for the acquisition of property, plant and equipment 235 136
Owned assets    
property, plant and equipment    
Property, plant and equipment at beginning of period 12,882  
Property, plant and equipment at end of period 13,379 12,882
Owned assets | Network assets    
property, plant and equipment    
Property, plant and equipment at beginning of period 10,653  
Property, plant and equipment at end of period 10,852 10,653
Owned assets | Buildings and leasehold improvements    
property, plant and equipment    
Property, plant and equipment at beginning of period 1,262  
Property, plant and equipment at end of period 1,319 1,262
Owned assets | Computer hardware and other    
property, plant and equipment    
Property, plant and equipment at beginning of period 498  
Property, plant and equipment at end of period 514 498
Owned assets | Land    
property, plant and equipment    
Property, plant and equipment at beginning of period 48  
Property, plant and equipment at end of period 54 48
Owned assets | Assets under construction    
property, plant and equipment    
Property, plant and equipment at beginning of period 421  
Property, plant and equipment at end of period 640 421
Right-of-use lease assets    
property, plant and equipment    
Property, plant and equipment at beginning of period 1,350  
Property, plant and equipment at end of period 1,635 1,350
Right-of-use lease assets | Network assets    
property, plant and equipment    
Property, plant and equipment at beginning of period 213  
Property, plant and equipment at end of period 456 213
Right-of-use lease assets | Real estate    
property, plant and equipment    
Property, plant and equipment at beginning of period 1,093  
Property, plant and equipment at end of period 1,124 1,093
Impairment of assets 23 5
Right-of-use lease assets | Other    
property, plant and equipment    
Property, plant and equipment at beginning of period 44  
Property, plant and equipment at end of period 55 44
Cost/Gross amount    
property, plant and equipment    
Property, plant and equipment at beginning of period 38,415 36,271
Additions 2,829 2,925
Additions arising from business acquisitions 118 165
Dispositions, retirements and other (783) (934)
Net foreign exchange differences 5 (12)
Property, plant and equipment at end of period 40,584 38,415
Cost/Gross amount | Owned assets    
property, plant and equipment    
Property, plant and equipment at beginning of period 36,869 35,128
Additions 2,299 2,416
Additions arising from business acquisitions 38 142
Dispositions, retirements and other (709) (817)
Property, plant and equipment at end of period 38,497 36,869
Cost/Gross amount | Owned assets | Network assets    
property, plant and equipment    
Property, plant and equipment at beginning of period 31,713 29,855
Additions 998 1,073
Additions arising from business acquisitions 4 127
Dispositions, retirements and other (497) (644)
Assets under construction put into service 752 1,302
Net foreign exchange differences 2  
Property, plant and equipment at end of period 32,972 31,713
Cost/Gross amount | Owned assets | Buildings and leasehold improvements    
property, plant and equipment    
Property, plant and equipment at beginning of period 3,314 3,273
Additions 43 42
Additions arising from business acquisitions 22 3
Dispositions, retirements and other (70) (125)
Assets under construction put into service 119 121
Property, plant and equipment at end of period 3,428 3,314
Cost/Gross amount | Owned assets | Computer hardware and other    
property, plant and equipment    
Property, plant and equipment at beginning of period 1,373 1,173
Additions 62 84
Additions arising from business acquisitions 12 12
Dispositions, retirements and other (142) (48)
Assets under construction put into service 100 152
Net foreign exchange differences (2)  
Property, plant and equipment at end of period 1,403 1,373
Cost/Gross amount | Owned assets | Land    
property, plant and equipment    
Property, plant and equipment at beginning of period 48 48
Additions 5  
Assets under construction put into service 1  
Property, plant and equipment at end of period 54 48
Cost/Gross amount | Owned assets | Assets under construction    
property, plant and equipment    
Property, plant and equipment at beginning of period 421 779
Additions 1,191 1,217
Assets under construction put into service (972) (1,575)
Property, plant and equipment at end of period 640 421
Cost/Gross amount | Right-of-use lease assets    
property, plant and equipment    
Property, plant and equipment at beginning of period 1,546 1,143
Additions 530 509
Additions arising from business acquisitions 80 23
Dispositions, retirements and other (74) (117)
Net foreign exchange differences 5 (12)
Property, plant and equipment at end of period 2,087 1,546
Cost/Gross amount | Right-of-use lease assets | Network assets    
property, plant and equipment    
Property, plant and equipment at beginning of period 219 101
Additions 282 219
Dispositions, retirements and other (2) (101)
Property, plant and equipment at end of period 499 219
Cost/Gross amount | Right-of-use lease assets | Real estate    
property, plant and equipment    
Property, plant and equipment at beginning of period 1,267 1,011
Additions 224 274
Additions arising from business acquisitions 74 12
Dispositions, retirements and other (64) (18)
Net foreign exchange differences 5 (12)
Property, plant and equipment at end of period 1,506 1,267
Cost/Gross amount | Right-of-use lease assets | Other    
property, plant and equipment    
Property, plant and equipment at beginning of period 60 31
Additions 24 16
Additions arising from business acquisitions 6 11
Dispositions, retirements and other (8) 2
Property, plant and equipment at end of period 82 60
Accumulated depreciation    
property, plant and equipment    
Property, plant and equipment at beginning of period (24,183) (23,139)
Depreciation 2,107 1,929
Dispositions, retirements and other 723 885
Net foreign exchange differences 3  
Property, plant and equipment at end of period (25,570) (24,183)
Accumulated depreciation | Owned assets    
property, plant and equipment    
Property, plant and equipment at beginning of period (23,987) (23,138)
Depreciation 1,832 1,728
Dispositions, retirements and other 701 879
Property, plant and equipment at end of period (25,118) (23,987)
Accumulated depreciation | Owned assets | Network assets    
property, plant and equipment    
Property, plant and equipment at beginning of period (21,060) (20,299)
Depreciation 1,547 1,473
Dispositions, retirements and other 489 712
Net foreign exchange differences 2  
Property, plant and equipment at end of period (22,120) (21,060)
Accumulated depreciation | Owned assets | Buildings and leasehold improvements    
property, plant and equipment    
Property, plant and equipment at beginning of period (2,052) (2,050)
Depreciation 127 120
Dispositions, retirements and other 70 118
Property, plant and equipment at end of period (2,109) (2,052)
Accumulated depreciation | Owned assets | Computer hardware and other    
property, plant and equipment    
Property, plant and equipment at beginning of period (875) (789)
Depreciation 158 135
Dispositions, retirements and other 142 49
Net foreign exchange differences (2)  
Property, plant and equipment at end of period (889) (875)
Accumulated depreciation | Right-of-use lease assets    
property, plant and equipment    
Property, plant and equipment at beginning of period (196) (1)
Depreciation 275 201
Dispositions, retirements and other 22 6
Net foreign exchange differences 3  
Property, plant and equipment at end of period (452) (196)
Accumulated depreciation | Right-of-use lease assets | Network assets    
property, plant and equipment    
Property, plant and equipment at beginning of period (6) (1)
Depreciation 37 13
Dispositions, retirements and other   8
Property, plant and equipment at end of period (43) (6)
Accumulated depreciation | Right-of-use lease assets | Real estate    
property, plant and equipment    
Property, plant and equipment at beginning of period (174)  
Depreciation 221 177
Dispositions, retirements and other 16 3
Net foreign exchange differences 3  
Property, plant and equipment at end of period (382) (174)
Accumulated depreciation | Right-of-use lease assets | Other    
property, plant and equipment    
Property, plant and equipment at beginning of period (16)  
Depreciation 17 11
Dispositions, retirements and other 6 (5)
Property, plant and equipment at end of period $ (27) $ (16)