v3.26.1
Equipment on Operating Leases - Future Minimum Lease Payments Expected to be Received under Non-cancellable Operating Leases to be Received (Detail) - Equipment on operating leases [member] - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Disclosure of maturity analysis of finance lease payments receivable [line items]    
Future minimum lease payments expected to be received under non-cancelable operating leases ¥ 2,374,873 ¥ 2,230,589
Within 1 year [member]    
Disclosure of maturity analysis of finance lease payments receivable [line items]    
Future minimum lease payments expected to be received under non-cancelable operating leases 1,071,460 966,028
Between 1 and 2 years [member]    
Disclosure of maturity analysis of finance lease payments receivable [line items]    
Future minimum lease payments expected to be received under non-cancelable operating leases 771,480 741,093
Between 2 and 3 years [member]    
Disclosure of maturity analysis of finance lease payments receivable [line items]    
Future minimum lease payments expected to be received under non-cancelable operating leases 369,762 364,347
Between 3 and 4 years [member]    
Disclosure of maturity analysis of finance lease payments receivable [line items]    
Future minimum lease payments expected to be received under non-cancelable operating leases 115,901 114,240
Between 4 and 5 years [member]    
Disclosure of maturity analysis of finance lease payments receivable [line items]    
Future minimum lease payments expected to be received under non-cancelable operating leases 34,209 32,341
Later than 5 years [member]    
Disclosure of maturity analysis of finance lease payments receivable [line items]    
Future minimum lease payments expected to be received under non-cancelable operating leases ¥ 12,061 ¥ 12,540