v3.25.2
Employee Benefits - Summary of Amounts Related to Defined Benefit Pension Plans Recognized in Consolidated Statements of Financial Position (Details) - JPY (¥)
¥ in Millions
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Disclosure of net defined benefit liability (asset) [line items]      
Present value of defined benefit obligations ¥ 384,488 ¥ 444,790  
Fair value of plan assets 347,123 391,743  
Net defined benefit liabilities (assets) 116,083 116,469  
Consolidated statements of financial position      
Net defined benefit liabilities 135,429 143,882  
Net defined benefit assets 19,346 27,413  
Net defined benefit liabilities (assets) 116,083 116,469  
Effect of asset ceiling      
Disclosure of net defined benefit liability (asset) [line items]      
Net defined benefit liabilities (assets) (78,717) (63,422)  
Consolidated statements of financial position      
Net defined benefit liabilities (assets) (78,717) (63,422)  
Japan      
Disclosure of net defined benefit liability (asset) [line items]      
Present value of defined benefit obligations 130,864 143,712  
Fair value of plan assets 221,422 226,229  
Net defined benefit liabilities (assets) (11,840) (19,096)  
Consolidated statements of financial position      
Net defined benefit liabilities 7,462 8,317  
Net defined benefit assets 19,302 27,413  
Net defined benefit liabilities (assets) (11,840) (19,096)  
Japan | Effect of asset ceiling      
Disclosure of net defined benefit liability (asset) [line items]      
Net defined benefit liabilities (assets) (78,717) (63,422) ¥ (41,311)
Consolidated statements of financial position      
Net defined benefit liabilities (assets) (78,717) (63,422) ¥ (41,311)
Foreign      
Disclosure of net defined benefit liability (asset) [line items]      
Present value of defined benefit obligations 253,624 301,078  
Fair value of plan assets 125,701 165,514  
Net defined benefit liabilities (assets) 127,922 135,564  
Consolidated statements of financial position      
Net defined benefit liabilities 127,967 135,564  
Net defined benefit assets 44 0  
Net defined benefit liabilities (assets) 127,922 135,564  
Foreign | Effect of asset ceiling      
Disclosure of net defined benefit liability (asset) [line items]      
Net defined benefit liabilities (assets) 0 0  
Consolidated statements of financial position      
Net defined benefit liabilities (assets) ¥ 0 ¥ 0