Hybrid Bonds - Summary of Hybrid Bonds (Parenthetical) (Detail) - Private hybrid bonds [Member]	12 Months Ended
Dec. 31, 2025
After 10 years [Member]
Annual interest rate, additional premium	0.25%
Annual interest rate, additional premium period	10 years
After 25 years [Member]
Annual interest rate, additional premium	0.75%
Annual interest rate, additional premium period	25 years

The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_7&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_BorrowingsAdjustmentToInterestRateBasis
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	instant