v3.26.1
Insurance contracts in the financial services business - Summary of methods and main inputs used to measure insurance contracts (Detail)
Mar. 31, 2025
Mortailty Rate [Member]  
Disclosure of inputs to methods used to measure contracts within scope of IFRS 17 [line items]  
Weighted Average Percentage To Measure Insurance Contracts 1.03%
Lapse And Surrender Rate [Member]  
Disclosure of inputs to methods used to measure contracts within scope of IFRS 17 [line items]  
Weighted Average Percentage To Measure Insurance Contracts 3.80%