v3.25.2
Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions (Tables)
12 Months Ended
Mar. 31, 2025
Offsetting [Abstract]  
Offsetting Assets For certain transactions where a legal opinion with respect to the enforceability of netting has not been sought or obtained, the related amounts are not subject to enforceable master netting agreements and not included in “Gross amounts not offset in the consolidated balance sheet” column in the tabular disclosure below.
At March 31, 2024 (As Adjusted):
Gross amounts of
 recognized
 assets/liabilities
 
Gross amounts
 offset in the
 consolidated
 balance sheet
 
Net amounts
 presented in the
 consolidated
 balance sheet
 
Gross amounts not offset in
 the consolidated balance sheet
 Net amounts
Financial
 instruments
 
Cash collateral
 received/pledged
 (in billions)
Financial assets:           
Derivative assets¥15,351 ¥— ¥15,351 ¥(12,155)¥(1,095)¥2,101 
Receivables under resale agreements20,906 (2,082)18,824 (17,532)(9)1,283 
Receivables under securities borrowing transactions5,076 (75)5,001 (4,652)— 349 
Total¥41,333 ¥(2,157)¥39,176 ¥(34,339)¥(1,104)¥3,733 
Financial liabilities:
Derivative liabilities¥16,360 ¥— ¥16,360 ¥(11,625)¥(2,154)¥2,581 
Payables under repurchase agreements37,771 (2,081)35,690 (34,188)(82)1,420 
Payables under securities lending transactions1,092 (75)1,017 (992)(10)15 
Obligations to return securities received as collateral7,223 — 7,223 (1,766)— 5,457 
Total¥62,446 ¥(2,156)¥60,290 ¥(48,571)¥(2,246)¥9,473 
At March 31, 2025:
Gross amounts of
 recognized
 assets/liabilities
 
Gross amounts
 offset in the
 consolidated
 balance sheet
 Net amounts
 presented in the
 consolidated
 balance sheet
 
Gross amounts not offset in
 the consolidated balance sheet
 Net amounts
Financial
 instruments
 
Cash collateral
 received/pledged
 (in billions)
Financial assets:           
Derivative assets¥20,748 ¥— ¥20,748 ¥(17,542)¥(1,053)¥2,153 
Receivables under resale agreements21,538 (2,756)18,782 (17,515)(1)1,266 
Receivables under securities borrowing transactions5,720 (19)5,701 (4,154)— 1,547 
Total¥48,006 ¥(2,775)¥45,231 ¥(39,211)¥(1,054)¥4,966 
Financial liabilities:
Derivative liabilities¥20,995 ¥— ¥20,995 ¥(17,031)¥(1,477)¥2,487 
Payables under repurchase agreements46,381 (2,717)43,664 (41,856)(144)1,664 
Payables under securities lending transactions737 (19)718 (693)— 25 
Obligations to return securities received as collateral6,047 — 6,047 (1,502)— 4,545 
Total¥74,160 ¥(2,736)¥71,424 ¥(61,082)¥(1,621)¥8,721 
Offsetting Liabilities For certain transactions where a legal opinion with respect to the enforceability of netting has not been sought or obtained, the related amounts are not subject to enforceable master netting agreements and not included in “Gross amounts not offset in the consolidated balance sheet” column in the tabular disclosure below.
At March 31, 2024 (As Adjusted):
Gross amounts of
 recognized
 assets/liabilities
 
Gross amounts
 offset in the
 consolidated
 balance sheet
 
Net amounts
 presented in the
 consolidated
 balance sheet
 
Gross amounts not offset in
 the consolidated balance sheet
 Net amounts
Financial
 instruments
 
Cash collateral
 received/pledged
 (in billions)
Financial assets:           
Derivative assets¥15,351 ¥— ¥15,351 ¥(12,155)¥(1,095)¥2,101 
Receivables under resale agreements20,906 (2,082)18,824 (17,532)(9)1,283 
Receivables under securities borrowing transactions5,076 (75)5,001 (4,652)— 349 
Total¥41,333 ¥(2,157)¥39,176 ¥(34,339)¥(1,104)¥3,733 
Financial liabilities:
Derivative liabilities¥16,360 ¥— ¥16,360 ¥(11,625)¥(2,154)¥2,581 
Payables under repurchase agreements37,771 (2,081)35,690 (34,188)(82)1,420 
Payables under securities lending transactions1,092 (75)1,017 (992)(10)15 
Obligations to return securities received as collateral7,223 — 7,223 (1,766)— 5,457 
Total¥62,446 ¥(2,156)¥60,290 ¥(48,571)¥(2,246)¥9,473 
At March 31, 2025:
Gross amounts of
 recognized
 assets/liabilities
 
Gross amounts
 offset in the
 consolidated
 balance sheet
 Net amounts
 presented in the
 consolidated
 balance sheet
 
Gross amounts not offset in
 the consolidated balance sheet
 Net amounts
Financial
 instruments
 
Cash collateral
 received/pledged
 (in billions)
Financial assets:           
Derivative assets¥20,748 ¥— ¥20,748 ¥(17,542)¥(1,053)¥2,153 
Receivables under resale agreements21,538 (2,756)18,782 (17,515)(1)1,266 
Receivables under securities borrowing transactions5,720 (19)5,701 (4,154)— 1,547 
Total¥48,006 ¥(2,775)¥45,231 ¥(39,211)¥(1,054)¥4,966 
Financial liabilities:
Derivative liabilities¥20,995 ¥— ¥20,995 ¥(17,031)¥(1,477)¥2,487 
Payables under repurchase agreements46,381 (2,717)43,664 (41,856)(144)1,664 
Payables under securities lending transactions737 (19)718 (693)— 25 
Obligations to return securities received as collateral6,047 — 6,047 (1,502)— 4,545 
Total¥74,160 ¥(2,736)¥71,424 ¥(61,082)¥(1,621)¥8,721