v3.25.2
Business segment information - Summary of sales and financial services revenue attributed to countries and areas based on location of external customers and non-current assets (Detail) - JPY (¥)
¥ in Millions
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Disclosure of geographical areas [line items]      
Sales and financial services revenue: ¥ 12,957,064 ¥ 13,020,768 ¥ 10,974,373
Non-current assets 6,464,326 6,056,850  
Japan [Member]      
Disclosure of geographical areas [line items]      
Sales and financial services revenue: 2,244,356 3,027,526 2,126,508
Non-current assets 2,090,652 2,036,616  
United States [Member]      
Disclosure of geographical areas [line items]      
Sales and financial services revenue: 4,127,795 3,751,239 3,401,402
Non-current assets 2,915,183 2,856,914  
Europe [Member]      
Disclosure of geographical areas [line items]      
Sales and financial services revenue: 2,630,934 2,632,963 2,190,311
Non-current assets 989,679 682,007  
China [Member]      
Disclosure of geographical areas [line items]      
Sales and financial services revenue: 1,244,115 1,000,907 855,437
Non-current assets 27,372 32,154  
Asia Pacific [Member]      
Disclosure of geographical areas [line items]      
Sales and financial services revenue: 1,640,582 1,659,776 1,563,414
Non-current assets 233,895 222,398  
Other Areas [Member]      
Disclosure of geographical areas [line items]      
Sales and financial services revenue: 1,069,282 948,357 ¥ 837,301
Non-current assets ¥ 207,545 ¥ 226,761