v3.26.1
Loans - Allowance For Credit Losses Write off On Financing Receivables (Detail) - JPY (¥)
¥ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Allowance For Credit Losses Write off On Financing Receivables [Line Items]      
2025 ¥ 9,000 ¥ 10,000  
2024 9,000 18,000  
2023 4,000 6,000  
2022 0 0  
2021 1,000 4,000  
Prior to 2021 210,000 5,000  
Revolving Loans 40,000 4,000  
Total 272,985 [1] 48,044 [1] ¥ 46,323
Geographic Distribution, Domestic      
Allowance For Credit Losses Write off On Financing Receivables [Line Items]      
2025 8,000 10,000  
2024 8,000 7,000  
2023 1,000 0  
2022 0 0  
2021 1,000 0  
Prior to 2021 196,000 4,000  
Revolving Loans 40,000 4,000  
Total 254,000 24,000  
Geographic Distribution, Domestic | Corporate Rating | Large Companies      
Allowance For Credit Losses Write off On Financing Receivables [Line Items]      
2025 6,000 7,000  
2024 5,000 3,000  
2023 1,000 0  
2022 0 0  
2021 1,000 0  
Prior to 2021 194,000 0  
Revolving Loans 39,000 2,000  
Total 245,000 13,000  
Geographic Distribution, Domestic | Corporate Rating | Small And Medium Sized Companies      
Allowance For Credit Losses Write off On Financing Receivables [Line Items]      
2025 2,000 2,000  
2024 2,000 2,000  
2023 0 0  
2022 0 0  
2021 0 0  
Prior to 2021 1,000 0  
Revolving Loans 1,000 1,000  
Total 5,000 6,000  
Geographic Distribution, Domestic | Retail Rating | Housing Loan      
Allowance For Credit Losses Write off On Financing Receivables [Line Items]      
2025 0 0  
2024 0 0  
2023 0 0  
2022 0 0  
2021 0 0  
Prior to 2021 1,000 1,000  
Revolving Loans 0 0  
Total 1,000 1,000  
Geographic Distribution, Domestic | Retail Rating | Other      
Allowance For Credit Losses Write off On Financing Receivables [Line Items]      
2025 0 0  
2024 1,000 2,000  
2023 0 0  
2022 0 0  
2021 0 0  
Prior to 2021 0 2,000  
Revolving Loans 0 0  
Total 2,000 4,000  
Geographic Distribution, Foreign      
Allowance For Credit Losses Write off On Financing Receivables [Line Items]      
2025 [2] 1,000 0  
2024 [2] 1,000 11,000  
2023 [2] 3,000 6,000  
2022 [2] 0 0  
2021 [2] 0 4,000  
Prior to 2021 [2] 14,000 2,000  
Revolving Loans [2] 0 0  
Total [2] ¥ 19,461 [1] ¥ 23,645 [1] ¥ 9,505
[1] Charge-offs increased by ¥224,941 million from the fiscal year ended March 31, 2025 to ¥272,985 million for the fiscal year ended March 31, 2026 due mainly to a downgrade in obligor rating at a domestic corporate borrower.
[2] The majority of total foreign consist of corporate.