v3.26.1
Income Taxes (Income before Income Taxes and Provision for Income Taxes) (Detail) - JPY (¥)
¥ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Income Taxes [Line Items]      
Income before Income Taxes, Japan ¥ 496,631 ¥ 307,830 ¥ 298,321
Income before Income Taxes, Overseas 194,800 172,633 171,654
Income before Income Taxes 691,431 480,463 469,975
Current      
Japan - Total [1] 94,317 72,230 80,274
Japan - National tax [1] 72,845    
Japan - Local tax [1] 21,472    
Overseas 48,399 33,252 31,114
Current - Total 142,716 105,482 111,388
Deferred      
Japan - Total [1] 76,511 26,803 9,049
Japan - National tax [1] 63,768    
Japan - Local tax [1] 12,743    
Overseas 13,876 (3,457) 10,951
Deferred - Total 90,387 23,346 20,000
Total      
Japan - Total [1] 170,828 99,033 89,323
Japan - National tax [1] 136,613    
Japan - Local tax [1] 34,215    
Overseas 62,275 29,795 42,065
Provision for income taxes ¥ 233,103 ¥ 128,828 ¥ 131,388
[1] Since fiscal 2026, we have changed the disclosure of the breakdown of income taxes in accordance with the Accounting Standards Update.