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Remaining performance obligations (Tables) | 12 Months Ended
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Dec. 31, 2020
Revenue From Contract With Customer1 [Abstract] |
Remaining performance obligations | The following table shows revenues expected to be recognized in the future related to performance obligations that are unsatisfied (or partially unsatisfied) as at December 31, 2020.
| 2021 | 2022 | 2023 | 2024 | 2025 | THEREAFTER | TOTAL
Wireline | 1,411 |  | 1,098 |  | 593 |  | 371 |  | 180 |  | 530 |  | 4,183 |
Wireless | 1,645 |  | 635 |  | 44 |  | 1 |  | 1 |  | 1 |  | 2,327 |
Total | 3,056 |  | 1,733 |  | 637 |  | 372 |  | 181 |  | 531 |  | 6,510 |

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- Definition The disclosure of performance obligations in contracts with customers. [Refer: Performance obligations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Paragraph 119 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_119&doctype=Standard -URIDate 2020-01-01 + Details
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