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Provisions and other non-current liabilities (Tables) | 12 Months Ended
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Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract] |
Disclosure of provisions and other non-current liabilities | The below table provides details related to Provisions and other non-current liabilities as of December 31, 2020, and 2019.
($ millions) | Note | 2020 |  | 2019 |  |
Accrued liability for employee benefits: |  |  |  |  |  |
Defined benefit pension plans | 23 | 339 |  |  | 291 |  |  |
Other long-term employee benefits and deferred compensation |  | 152 |  |  | 140 |  |  |
Other post-employment benefits | 23 | 332 |  |  | 423 |  |  |
Provisions for litigation and other legal matters |  | — |  |  | — |  |  |
Contingent consideration | 18 | 142 |  |  | 208 |  |  |
Other non-current liabilities |  | 95 |  |  | 106 |  |  |
Total provisions and other non-current liabilities |  | 1,060 |  |  | 1,168 |  |  |
Disclosure of details of non-current product liabilities and other legal matter provisions | Litigation and other legal matters provision movements
($ millions) | 2020 |  | 2019 |  | 2018 |
January 1 | — |  |  | 42 |  |  | 49 |  |
Additions to provisions | 9 |  |  | — |  |  | 1 |  |
Cash payments | (9) |  |  | (40) |  |  | (1) |  |
Releases of provisions | — |  |  | (2) |  |  | (7) |  |
December 31 | — |  |  | — |  |  | 42 |  |
Less current portion | — |  |  | — |  |  | (42) |  |
Non-current provisions for litigation and other legal matters at December 31 | — |  |  | — |  |  | — |  |

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- Definition Disclosure Of Detailed Information on Non-Current Provisions And Other Non-Current Liabilities [Table Text Block] + References No definition available. + Details
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- Definition The disclosure of other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84&doctype=Standard -URIDate 2020-01-01 + Details
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