v3.26.1
Cash Flow Information - Summary of Cash, Cash Equivalents and Restricted Cash (Detail) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Supplemental Cash Flow Elements [Abstract]        
Cash and Cash Equivalents ¥ 1,334,945 ¥ 1,206,573    
Restricted Cash 116,154 115,410    
Cash, Cash Equivalents and Restricted Cash ¥ 1,451,099 ¥ 1,321,983 ¥ 1,185,307 ¥ 1,366,908