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Employee benefits - Expected benefit payments (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($)
Employee benefits |
Disbursement of cash flow in 2021 | $ 57
2021 | Overfunded pension plans |
Employee benefits |
Expected benefit payments | 215
2021 | Underfunded pension plans |
Employee benefits |
Expected benefit payments | 239
2021 | Other benefits |
Employee benefits |
Expected benefit payments | 17
2022 | Overfunded pension plans |
Employee benefits |
Expected benefit payments | 220
2022 | Underfunded pension plans |
Employee benefits |
Expected benefit payments | 237
2022 | Other benefits |
Employee benefits |
Expected benefit payments | 18
2023 | Overfunded pension plans |
Employee benefits |
Expected benefit payments | 224
2023 | Underfunded pension plans |
Employee benefits |
Expected benefit payments | 238
2023 | Other benefits |
Employee benefits |
Expected benefit payments | 19
2024 | Overfunded pension plans |
Employee benefits |
Expected benefit payments | 227
2024 | Underfunded pension plans |
Employee benefits |
Expected benefit payments | 239
2024 | Other benefits |
Employee benefits |
Expected benefit payments | 20
2025 | Overfunded pension plans |
Employee benefits |
Expected benefit payments | 230
2025 | Underfunded pension plans |
Employee benefits |
Expected benefit payments | 238
2025 | Other benefits |
Employee benefits |
Expected benefit payments | 21
2026 and thereafter | Overfunded pension plans |
Employee benefits |
Expected benefit payments | 1,177
2026 and thereafter | Underfunded pension plans |
Employee benefits |
Expected benefit payments | 1,175
2026 and thereafter | Other benefits |
Employee benefits |
Expected benefit payments | $ 119

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- Definition The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 147 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_147_b&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 148 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_148_d_iii&doctype=Standard -URIDate 2020-01-01 + Details
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