v3.26.1
Leases - Gross Investment in Lease, Unearned Finance Income, Present Value of Minimum Lease Payments Receivable and Unguaranteed Residual Values Under Finance Leases (Detail) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Disclosure of finance lease and operating lease by lessor [line items]    
Gross investment in the lease ¥ 335,168 ¥ 385,099
Unearned finance income 75,558 81,841
Present value of the minimum lease payments receivable [1] 259,610 303,258
Unguaranteed residual values [1] 14,933 18,218
Not later than one year [member]    
Disclosure of finance lease and operating lease by lessor [line items]    
Gross investment in the lease 63,356 107,149
Unearned finance income 12,576 16,623
Present value of the minimum lease payments receivable [1] 50,780 90,526
Unguaranteed residual values [1] 288 5,919
Later than one year and not later than two years [member]    
Disclosure of finance lease and operating lease by lessor [line items]    
Gross investment in the lease 70,863 34,536
Unearned finance income 8,757 7,615
Present value of the minimum lease payments receivable [1] 62,106 26,921
Unguaranteed residual values [1] 1,763 620
Later than two years and not later than three years [member]    
Disclosure of finance lease and operating lease by lessor [line items]    
Gross investment in the lease 31,391 50,980
Unearned finance income 7,393 8,324
Present value of the minimum lease payments receivable [1] 23,998 42,656
Unguaranteed residual values [1] 3,158 1,744
Later than three years and not later than four years [member]    
Disclosure of finance lease and operating lease by lessor [line items]    
Gross investment in the lease 45,514 13,410
Unearned finance income 5,233 5,426
Present value of the minimum lease payments receivable [1] 40,281 7,984
Unguaranteed residual values [1] 5,649 4,845
Later than four years and not later than five years [member]    
Disclosure of finance lease and operating lease by lessor [line items]    
Gross investment in the lease 9,780 53,161
Unearned finance income 4,020 6,115
Present value of the minimum lease payments receivable [1] 5,760 47,046
Unguaranteed residual values [1]   4,615
Later than five years [member]    
Disclosure of finance lease and operating lease by lessor [line items]    
Gross investment in the lease 114,264 125,863
Unearned finance income 37,579 37,738
Present value of the minimum lease payments receivable [1] 76,685 88,125
Unguaranteed residual values [1] ¥ 4,075 ¥ 475
[1] Discounted lease payments and unguaranteed residual values are included in “Loans and advances” in the consolidated statements of financial position.