v3.26.1
Related Parties - Balances of Receivables and Payables with Affiliates and Joint Ventures (Detail) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Disclosure of transactions between related parties [line items]    
Receivables ¥ 376,840 ¥ 263,026
Payables 297,812 312,941
Affiliates [member]    
Disclosure of transactions between related parties [line items]    
Receivables 102,131 50,113
Payables 213,517 241,204
Joint ventures [member]    
Disclosure of transactions between related parties [line items]    
Receivables 274,709 212,913
Payables ¥ 84,295 ¥ 71,737