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Property, plant and equipment (Tables)
 12 Months Ended
Dec. 31, 2022
Property, plant and equipment [abstract]  
Schedule of property, plant and equipment
ESTIMATED USEFUL LIFE
Property, plant and equipment
Network infrastructure and equipment
2 to 50 years
Buildings
5 to 50 years
Finite-life intangible assets
Software
2 to 12 years
Customer relationships
2 to 26 years
Program and feature film rights
Up to 5 years
FOR THE YEAR ENDED DECEMBER 31, 2022 NOTE
NETWORK
INFRASTRUCTURE
AND EQUIPMENT (1)
LAND AND
BUILDINGS (1)
 ASSETS UNDER
CONSTRUCTION		 TOTAL
COST  
January 1, 2022   70,923  8,889  2,241  82,053 
Additions   2,824  394  2,675  5,893 
Business combinations/(business disposition)   11  (28) 3  (14)
Transfers   1,180  51  (2,318) (1,087)
Retirements and disposals   (3,063) (35) (3) (3,101)
Impairment losses recognized in earnings 8 —  (132) —  (132)
December 31, 2022   71,875  9,139  2,598  83,612 
ACCUMULATED DEPRECIATION  
January 1, 2022   49,122  4,696  —  53,818 
Depreciation   3,195  465  —  3,660 
Business disposition (14) (7) —  (21)
Retirements and disposals   (3,025) (28) —  (3,053)
Transfers 2  (2) —  — 
Other   (44) (4) —  (48)
December 31, 2022   49,236  5,120  —  54,356 
NET CARRYING AMOUNT  
January 1, 2022   21,801  4,193  2,241  28,235 
December 31, 2022   22,639  4,019  2,598  29,256 
(1)Includes right-of-use assets. See Note 18, Leases, for additional details.
FOR THE YEAR ENDED DECEMBER 31, 2021 NOTE
NETWORK
INFRASTRUCTURE
AND EQUIPMENT (1)
LAND AND
BUILDINGS (1)
 ASSETS UNDER
CONSTRUCTION		 TOTAL
COST              
January 1, 2021   69,477  7,832  1,889  79,198 
Additions   2,643  326  2,515  5,484 
Business combinations   2  12  —  14 
Transfers   358  771  (2,163) (1,034)
Retirements and disposals   (1,550) (37) —  (1,587)
Impairment losses recognized in earnings 8 (4) (15) —  (19)
Reclassified to assets held for sale 16 (3) —  —  (3)
December 31, 2021   70,923  8,889  2,241  82,053 
ACCUMULATED DEPRECIATION              
January 1, 2021   47,563  4,122  —  51,685 
Depreciation   3,220  407  —  3,627 
Retirements and disposals (1,515) (27) —  (1,542)
Transfers   (95) 191  —  96 
Reclassified to assets held for sale 16 (1) —  —  (1)
Other   (50) 3  —  (47)
December 31, 2021   49,122  4,696  —  53,818 
NET CARRYING AMOUNT              
January 1, 2021   21,914  3,710  1,889  27,513 
December 31, 2021   21,801  4,193  2,241  28,235 
(1)Includes right-of-use assets. See Note 18, Leases, for additional details.