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Significant partly-owned subsidiary - Summarized Statements of Financial Position (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure of subsidiaries [line items] |  |
Current assets | $ 5,688 | $ 5,520
Non-current assets | 54,977 | 54,626
Total assets | 60,665 | 60,146
Current liabilities | 8,271 | 9,777
Non-current liabilities | 31,065 | 28,961
Total liabilities | 39,336 | 38,738
Total equity attributable to BCE shareholders | 20,989 | 21,074
NCI | 340 | 334
CTV Specialty hedge |  |
Disclosure of subsidiaries [line items] |  |
Current assets | 357 | 314
Non-current assets | 1,032 | 994
Total assets | 1,389 | 1,308
Current liabilities | 159 | 151
Non-current liabilities | 227 | 192
Total liabilities | 386 | 343
Total equity attributable to BCE shareholders | 699 | 671
NCI | $ 304 | $ 294
Proportion of ownership interests held by non-controlling interests | 29.90% | 29.90%
Net assets | $ 6 | $ 8

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