Employee benefits (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Liabilities | ||
| Short-term employee benefits | $ 2,080 | $ 2,722 |
| Termination benefits | 91 | 91 |
| Post-employment benefits | 17,860 | 16,359 |
| Total | 20,031 | 19,172 |
| Current | 3,224 | 3,805 |
| Non-current | $ 16,807 | $ 15,367 |
| X | ||||||||||
- Definition The amount of current provisions for employee benefits. [Refer: Provisions for employee benefits] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of non-current provisions for employee benefits. [Refer: Provisions for employee benefits] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of accruals for employee benefits (other than termination benefits) that are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services. [Refer: Accruals classified as current] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The element represents termination benefits. No definition available.
|