v3.26.1
Income Taxes (Components of Income Before Income Tax Expense) (Detail)
¥ in Millions
12 Months Ended
Mar. 31, 2026
JPY (¥)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract]  
Domestic ¥ 241,757
Foreign 1,443,869
Total ¥ 1,685,627