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share-based compensation - TELUS Corporation share options (Details) - TELUS Corporation share options
3 Months Ended 6 Months Ended
Jun. 30, 2022
EquityInstruments
$ / shares
Jun. 30, 2022
EquityInstruments
$ / shares
share-based compensation    
Number of share options outstanding, beginning of period 2,969,600 3,050,300
Number of share options forfeited (66,900) (147,600)
Number of share options outstanding, end of period 2,902,700 2,902,700
Weighted average share price of options outstanding, beginning of period | $ / shares $ 22.04 $ 22.04
Weighted average share price of options forfeited | $ / shares 21.95 22.00
Weighted average share price of options outstanding, end of period | $ / shares $ 22.04 $ 22.04
Weighted average remaining contractual life (years)   4 years 9 months 18 days
Number of options exercisable 0 0
Maximum    
share-based compensation    
Exercise period   7 years