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GENERAL INFORMATION - Schedule of Interests in Subsidiaries (Details)	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
JSC Kyivstar
Disclosure of subsidiaries [line items]
Interest	99.995%	99.995%
LLC Kyivstar.Tech
Disclosure of subsidiaries [line items]
Interest	100.00%	100.00%
LLC Helsi Ukraine
Disclosure of subsidiaries [line items]
Interest	97.99%	97.99%
LLC Lan Trace
Disclosure of subsidiaries [line items]
Interest	100.00%	100.00%
LLC Uklon Corporate
Disclosure of subsidiaries [line items]
Interest	97.00%	97.00%
LLC Uklon Tech
Disclosure of subsidiaries [line items]
Interest	97.00%	97.00%
LLC Uklon Ltd
Disclosure of subsidiaries [line items]
Interest	97.00%	97.00%
Uklon LLC
Disclosure of subsidiaries [line items]
Interest	100.00%	100.00%
Uklon LLC | LLC Uklon Ltd
Disclosure of subsidiaries [line items]
Interest	100.00%
Kyivstar Holdings B.V.
Disclosure of subsidiaries [line items]
Interest	100.00%	100.00%
Kyivstar Cayman Corp.
Disclosure of subsidiaries [line items]
Interest	0.00%	100.00%
SUNVIN 11 LLC
Disclosure of subsidiaries [line items]
Interest	100.00%	100.00%
LLC ISP Shtorm
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC MTPK
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Farmel
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Farmel | LLC MTPK
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Farma Studio
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Farma Studio | LLC MTPK
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Energy Space
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Ternovytsia Solar Plus
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Energopostach-Plus
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Lightfull
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Sunlight Generation
Disclosure of subsidiaries [line items]
Interest	100.00%
LLC Ternovytsia Solar
Disclosure of subsidiaries [line items]
Interest	100.00%

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2025-01-01
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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