OUR PEOPLE - Additional Information (Details) - number_of_employee	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Number and average number of employees [abstract]
Staff numbers at the end of period	98,655	108,044	114,173

The number of personnel employed by the entity at a date.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_NumberOfEmployees
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant