SIGNIFICANT TRANSACTIONS - Sale of TNS+ in Kazakhstan Narrative (Details) - USD ($) $ in Millions |
1 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|
Sep. 30, 2024 |
May 28, 2024 |
Feb. 28, 2025 |
Nov. 30, 2024 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of detailed information about business combination [line items] | |||||||
| Gain on disposal of subsidiaries | $ 400 | $ 145 | $ 0 | ||||
| Reclassification of foreign currency translation reserve | $ 355 | $ 36 | $ (3,414) | ||||
| TNS Plus LLP | |||||||
| Disclosure of detailed information about business combination [line items] | |||||||
| Proportion of ownership interest in subsidiary | 49.00% | ||||||
| Deferred consideration | $ 138 | ||||||
| Gain on disposal of subsidiaries | $ 66 | ||||||
| Reclassification of foreign currency translation reserve | $ 44 | ||||||
| Deferred consideration to be settled in cash | $ 100 | $ 38 | |||||