Other non-current liabilities and employee future benefits - Composition of Plan Assets (Details) |
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Employee Benefits [Abstract] | ||
| Cash and cash equivalents | 100.00% | 3.00% |
| Equity securities | 0.00% | 60.00% |
| Debt securities | 0.00% | 37.00% |
| Total | 100.00% | 100.00% |
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- Definition Employee Benefits [Abstract] No definition available.
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- Definition Plan Assets At Fair Value, Allocation Percentage No definition available.
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- Definition The percentage cash and cash equivalents contribute to the fair value of defined benefit plan assets. [Refer: Cash and cash equivalents; Plan assets, at fair value; Defined benefit plans [member]] [Contrast: Cash and cash equivalents, amount contributed to fair value of plan assets] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The percentage instruments representing debt (rather than equity) contribute to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]] [Contrast: Debt instruments, amount contributed to fair value of plan assets] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The percentage equity instruments contribute to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]] [Contrast: Equity instruments, amount contributed to fair value of plan assets] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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