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Deposits (Time Deposits by Maturity) (Detail)
¥ in Millions
Mar. 31, 2026
JPY (¥)
Domestic  
Maturities of time deposits:  
Due in one year or less ¥ 37,037,913
Due after one year through two years 3,730,654
Due after two years through three years 2,107,465
Due after three years through four years 625,553
Due after four years through five years 602,508
Due after five years 859,518
Total 44,963,611
Foreign  
Maturities of time deposits:  
Due in one year or less 40,424,172
Due after one year through two years 514,655
Due after two years through three years 141,238
Due after three years through four years 25,356
Due after four years through five years 15,860
Due after five years 16,492
Total ¥ 41,137,773