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share-based compensation - TELUS Corporation share options (Details) - TELUS Corporation share options | 12 Months Ended
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Dec. 31, 2020 Options EquityInstruments $ / shares | Dec. 31, 2019 EquityInstruments
share-based compensation |  |
Share options granted | EquityInstruments | (3,171,600) | 0
Number of share options forfeited | EquityInstruments | (156,900) |
Number of share options outstanding, end of period | EquityInstruments | 3,014,700 |
Weighted average share price of options exercised | $ / shares | $ 21.57 |
Weighted average share price of options forfeited | $ / shares | 21.29 |
Weighted average share price of options outstanding, end of period | $ / shares | $ 21.59 |
Weighted average remaining contractual life (years) | 6 years 3 months 18 days |
Number of options exercisable | Options | 0 |
Maximum |  |
share-based compensation |  |
Exercise period | 7 years |

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