v3.26.1
Other Assets and Liabilities (Details of Other Assets and Liabilities) (Detail) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Other assets:    
Receivables from brokers, dealers and customers for securities transactions ¥ 2,190,046 ¥ 2,730,316
Other 572,031 566,583
Collateral pledged for derivative transactions 2,305,536 1,666,564
Margins provided for futures contracts 303,332 228,386
Other 137,164 117,279
Prepaid pension cost 717,926 682,222
Right-of-use assets 483,068 474,361
Security deposits 71,005 76,648
Loans held for sale 162,289 [1] 391,519
Other 1,139,694 1,300,551 [2],[3]
Total ¥ 8,082,090 ¥ 8,234,429
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Total Total
Other liabilities:    
Payables to brokers, dealers and customers for securities transactions ¥ 1,002,531 ¥ 1,260,130
Other 1,136,689 611,344
Guaranteed trust principal [4] 441,687 703,851
Lease liabilities 521,941 502,997
Collateral accepted for derivative transactions 2,163,341 1,380,243
Margins accepted for futures contracts 57,053 29,725
Unearned income 86,294 93,491
Other 1,761,662 2,026,574 [2]
Total ¥ 7,171,197 ¥ 6,608,355
[1] The MHFG Group transferred certain loans from Loans held for sale to Loans at March 31, 2026, totaling ¥186,640 million.
[2] The MHFG Group included assets of ¥68,966 million and liabilities of ¥131,210 million, which are mainly financial assets and financial liabilities, relating to a transferred business and classified as held for sale in Other at March 31, 2025.
[3] The MHFG Group included premises and equipment classified as held for sale in Other at March 31, 2025.
[4] Guaranteed trust principal, included in All other liabilities in the disclosure about consolidated VIEs in the accompanying balance sheets, is a liability of certain consolidated trust arrangements that meet the definition of a VIE for which the MHFG Group provides guarantees for the repayment of principal. See Note 23 “Variable interest entities and securitizations” for further discussion of the guaranteed principal money trusts.