v3.22.4
Intangible assets and goodwill - Schedule of Intangible assets and goodwill (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Intangible assets and goodwill      
Balance at beginning of the year $ 2,538    
Amortization (134) $ (142) $ (83)
Balance at end of the year 2,358 2,538  
At cost      
Intangible assets and goodwill      
Balance at beginning of the year 2,776 2,896  
Additions 12 8  
Additions from acquisition 9 15  
Dispositions 11    
Foreign exchange (73) (104)  
Balance at end of the year 2,713 2,776 2,896
Accumulated amortization      
Intangible assets and goodwill      
Balance at beginning of the year (238) (145)  
Amortization 134 142  
Dispositions (11) (39)  
Foreign exchange (6) (10)  
Balance at end of the year (355) (238) (145)
Total intangible assets      
Intangible assets and goodwill      
Balance at beginning of the year 1,158    
Balance at end of the year 1,008 1,158  
Total intangible assets | At cost      
Intangible assets and goodwill      
Balance at beginning of the year 1,396 1,468  
Additions 12 8  
Additions from acquisition 0 10  
Dispositions 11    
Foreign exchange (34) (51)  
Balance at end of the year 1,363 1,396 1,468
Total intangible assets | Accumulated amortization      
Intangible assets and goodwill      
Balance at beginning of the year (238) (145)  
Amortization 134 142  
Dispositions (11) (39)  
Foreign exchange (6) (10)  
Balance at end of the year (355) (238) (145)
Customer relationships      
Intangible assets and goodwill      
Balance at beginning of the year 1,009    
Balance at end of the year 887 1,009  
Customer relationships | At cost      
Intangible assets and goodwill      
Balance at beginning of the year 1,182 1,252  
Additions 0 0  
Additions from acquisition 0 4  
Dispositions 0    
Foreign exchange (31) (45)  
Balance at end of the year 1,151 1,182 1,252
Customer relationships | Accumulated amortization      
Intangible assets and goodwill      
Balance at beginning of the year (173) (103)  
Amortization 96 106  
Dispositions 0 (29)  
Foreign exchange (5) (7)  
Balance at end of the year (264) (173) (103)
Crowdsource assets      
Intangible assets and goodwill      
Balance at beginning of the year 105    
Balance at end of the year 90 105  
Crowdsource assets | At cost      
Intangible assets and goodwill      
Balance at beginning of the year 120 120  
Additions 0 0  
Additions from acquisition 0 0  
Dispositions 0    
Foreign exchange 0 0  
Balance at end of the year 120 120 120
Crowdsource assets | Accumulated amortization      
Intangible assets and goodwill      
Balance at beginning of the year (15) 0  
Amortization 15 15  
Dispositions 0 0  
Foreign exchange 0 0  
Balance at end of the year (30) (15) 0
Software      
Intangible assets and goodwill      
Balance at beginning of the year 26    
Balance at end of the year 24 26  
Software | At cost      
Intangible assets and goodwill      
Balance at beginning of the year 57 57  
Additions 12 8  
Additions from acquisition 0 6  
Dispositions 11    
Foreign exchange (1) (4)  
Balance at end of the year 57 57 57
Software | Accumulated amortization      
Intangible assets and goodwill      
Balance at beginning of the year (31) (32)  
Amortization 13 11  
Dispositions (11) (10)  
Foreign exchange 0 (2)  
Balance at end of the year (33) (31) (32)
Brand      
Intangible assets and goodwill      
Balance at beginning of the year 18    
Balance at end of the year 7 18  
Brand | At cost      
Intangible assets and goodwill      
Balance at beginning of the year 37 39  
Additions 0 0  
Additions from acquisition 0 0  
Dispositions 0    
Foreign exchange (2) (2)  
Balance at end of the year 35 37 39
Brand | Accumulated amortization      
Intangible assets and goodwill      
Balance at beginning of the year (19) (10)  
Amortization 10 10  
Dispositions 0 0  
Foreign exchange (1) (1)  
Balance at end of the year (28) (19) (10)
Goodwill      
Intangible assets and goodwill      
Balance at beginning of the year 1,380    
Balance at end of the year 1,350 1,380  
Goodwill | At cost      
Intangible assets and goodwill      
Balance at beginning of the year 1,380 1,428  
Additions 0 0  
Additions from acquisition 9 5  
Dispositions 0    
Foreign exchange (39) (53)  
Balance at end of the year 1,350 1,380 1,428
Goodwill | Accumulated amortization      
Intangible assets and goodwill      
Balance at beginning of the year 0 0  
Amortization 0 0  
Dispositions 0 0  
Foreign exchange 0 0  
Balance at end of the year $ 0 $ 0 $ 0