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intangible assets and goodwill - Intangible assets with indefinite lives and goodwill - spectrum licences and impairment testing (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Intangible assets and goodwill |  |
Intangible assets with indefinite lives | $ 9,910 | $ 9,937
Goodwill, net | 7,235 | 5,307
Total | $ 17,145 | $ 15,244
Significant unobservable inputs (Level 3) |  |
Intangible assets and goodwill |  |
Period over which management has projected cash flows | 3 years | 3 years
Discount rates applied to cash flow projections | 7.00% | 7.00%
Growth rates applied to cash flow projections | 2.00% | 2.00%
Wireless |  |
Intangible assets and goodwill |  |
Intangible assets with indefinite lives | $ 9,910 | $ 9,937
Goodwill, net | 2,890 | 2,890
Total | 12,800 | 12,827
Wireline |  |
Intangible assets and goodwill |  |
Goodwill, net | 4,345 | 2,417
Total | $ 4,345 | $ 2,417
Spectrum licences |  |
Intangible assets and goodwill |  |
Renewal of spectrum license ( in years) | 20 years |

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