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PENSIONS AND OTHER POST-EMPLOYMENT BENEFIT OBLIGATIONS - Actuarial Assumptions (Details) | Jun. 30, 2021 | Dec. 31, 2020
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Switzerland |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 0.20% | 0.00%
U.S. |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 0.00% | 0.00%
U.S. | Hourly pension | Bottom of range |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 2.75% | 2.45%
U.S. | Hourly pension | Top of range |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 2.95% | 2.65%
U.S. | Salaried pension |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 2.85% | 2.55%
U.S. | OPEB | Bottom of range |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 2.85% | 2.50%
U.S. | OPEB | Top of range |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 3.15% | 2.80%
U.S. | Other benefits | Bottom of range |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 2.50% | 2.20%
U.S. | Other benefits | Top of range |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 2.90% | 2.55%
France |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 0.00% | 0.00%
France | Retirements |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 0.90% | 0.50%
France | Other benefits |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 0.75% | 0.40%
Germany |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate | 0.95% | 0.55%

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- Definition The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_144&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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