Mitsubishi UFJ Financial (MUFG) 6-K 26 Dec 24 Current report (foreign) Financial data

Cover Page

Cover Page	6 Months Ended
	Sep. 30, 2024
Cover [Abstract]
Document Type	6-K
Entity Registrant Name	MITSUBISHI UFJ FINANCIAL GROUP, INC.
Document Period End Date	Sep. 30, 2024
Amendment Flag	false
Entity Central Index Key	0000067088
Current Fiscal Year End Date	--03-31

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
ASSETS
Cash and due from banks	¥ 4,055,804	¥ 4,416,646
Interest-earning deposits in other banks	104,083,772	105,701,977
Cash, due from banks and interest-earning deposits in other banks	108,139,576	110,118,623
Call loans, funds sold, and receivables under resale agreements	19,876,746	20,562,358
Receivables under securities borrowing transactions	5,535,122	5,000,816
Trading account assets (including assets pledged that secured parties are permitted to sell or repledge of ¥7,370,330 and ¥7,671,947 at March 31, 2024 and September 30, 2024) (including ¥19,716,612 and ¥21,941,994 at March 31, 2024 and September 30, 2024 measured at fair value under fair value option)	54,148,540	49,769,406
Investment securities:
Available-for-sale debt securities (including assets pledged that secured parties are permitted to sell or repledge of ¥6,078,544 and ¥3,521,396 at March 31, 2024 and September 30, 2024)	26,962,826	31,422,967
Held-to-maturity debt securities (including assets pledged that secured parties are permitted to sell or repledge of ¥7,345,438 and ¥5,668,316 at March 31, 2024 and September 30, 2024) (fair value of ¥24,557,514 and ¥22,548,633 at March 31, 2024 and September 30, 2024)	22,739,448	24,843,962
Equity securities (including assets pledged that secured parties are permitted to sell or repledge of ¥474 and ¥708 at March 31, 2024 and September 30, 2024) (including ¥5,649,151 and ¥4,553,797 at March 31, 2024 and September 30, 2024 measured at fair value)	5,125,231	6,132,369
Total investment securities	54,827,505	62,399,298
Loans, net of unearned income, unamortized premiums and deferred loan fees (including assets pledged that secured parties are permitted to sell or repledge of ¥124,818 and ¥118,142 at March 31, 2024 and September 30, 2024)	130,245,363	127,910,303
Allowance for credit losses	(1,370,804)	(1,356,961)
Net loans	128,874,559	126,553,342
Premises and equipment—net	879,296	872,641
Customers’ acceptance liability	454,608	435,072
Intangible assets—net	1,403,157	1,297,760
Goodwill	676,381	493,758
Other assets (including net of allowance for credit losses of ¥16,757 and ¥18,192 at March 31, 2024 and September 30, 2024)	18,122,265	20,380,462
Total assets	392,937,755	397,883,536
Deposits:
Domestic offices, non-interest-bearing	35,641,277	36,105,211
Domestic offices, interest-bearing	147,122,678	147,169,199
Overseas offices, principally interest-bearing	62,127,029	63,861,590
Total deposits	244,890,984	247,136,000
Call money, funds purchased, and payables under repurchase agreements	42,667,578	40,784,623
Payables under securities lending transactions	644,024	1,016,938
Due to trust account and other short-term borrowings (including ¥54,159 and ¥301,191 at March 31, 2024 and September 30, 2024 measured at fair value under fair value option)	27,579,111	15,801,323
Trading account liabilities	16,849,318	16,579,522
Bank acceptances outstanding	454,608	435,072
Long-term debt (including ¥234,909 and ¥200,462 at March 31, 2024 and September 30, 2024 measured at fair value under fair value option)	24,554,156	40,012,819
Other liabilities	15,816,923	17,600,152
Total liabilities	373,456,702	379,366,449
Commitments and contingent liabilities
Mitsubishi UFJ Financial Group shareholders’ equity:
Capital stock—common stock authorized, 33,000,000,000 shares; common stock issued, 12,337,710,920 shares and 12,337,710,920 shares at March 31, 2024 and September 30, 2024, with no stated value	2,090,270	2,090,270
Capital surplus	4,617,068	4,635,892
Retained earnings:
Appropriated for legal reserve	239,571	239,571
Unappropriated retained earnings	9,905,302	9,086,490
Accumulated other comprehensive income, net of taxes	2,480,877	2,237,625
Treasury stock, at cost—610,482,347 common shares and 671,412,525 common shares at March 31, 2024 and September 30, 2024	(723,219)	(614,111)
Total Mitsubishi UFJ Financial Group shareholders’ equity	18,609,869	17,675,737
Noncontrolling interests	871,184	841,350
Total equity	19,481,053	18,517,087
Total liabilities and equity	392,937,755	397,883,536
Consolidated VIEs
ASSETS
Cash and due from banks	5,604	10,146
Interest-earning deposits in other banks	62,694	34,166
Trading account assets (including assets pledged that secured parties are permitted to sell or repledge of ¥7,370,330 and ¥7,671,947 at March 31, 2024 and September 30, 2024) (including ¥19,716,612 and ¥21,941,994 at March 31, 2024 and September 30, 2024 measured at fair value under fair value option)	1,271,717	1,266,293
Investment securities:
Total investment securities	2,490,850	2,320,543
Net loans	16,639,950	17,514,131
All other assets	1,618,463	1,463,380
Total assets	22,089,278	22,608,659
Deposits:
Total deposits	0	0
Long-term debt (including ¥234,909 and ¥200,462 at March 31, 2024 and September 30, 2024 measured at fair value under fair value option)	440,416	379,017
Other short-term borrowings	40,825	46,208
All other liabilities	135,478	131,066
Total liabilities	¥ 616,719	¥ 556,291

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Trading account assets pledged that secured parties are permitted to sell or repledge	¥ 7,671,947	¥ 7,370,330
Trading account assets measured at fair value under fair value option	21,941,994	19,716,612
Available-for-sale debt securities pledged that secured parties are permitted to sell or repledge	3,521,396	6,078,544
Held-to-maturity debt securities pledged that secured parties are permitted to sell or repledge	5,668,316	7,345,438
Held-to-maturity debt securities, fair value	22,548,633	24,557,514
Equity securities pledged that secured parties are permitted to sell or repledge	708	474
Equity securities measured at fair value	4,553,797	5,649,151
Financing receivable, before allowance for credit loss	130,730,553	128,397,012
Allowance for credit losses	18,192	16,757
Due to trust account and other short-term borrowings measured at fair value under fair value option	301,191	54,159
Long-term debt measured at fair value under fair value option	¥ 200,462	¥ 234,909
Common stock, authorized (in shares)	33,000,000,000	33,000,000,000
Common stock, issued (in shares)	12,337,710,920	12,337,710,920
Treasury stock, shares (in shares)	671,412,525	610,482,347
Asset pledged with permission to sell or repledge
Financing receivable, before allowance for credit loss	¥ 118,142	¥ 124,818

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - JPY (¥) shares in Thousands, ¥ in Millions		6 Months Ended
		Sep. 30, 2024	Sep. 30, 2023
Interest income:
Loans, including fees		¥ 2,348,070	¥ 2,041,490
Deposits in other banks		372,370	356,085
Investment securities		404,110	355,778
Trading account assets		500,730	360,961
Call loans, funds sold, and receivables under resale agreements and securities borrowing transactions		477,197	196,471
Total		4,102,477	3,310,785
Interest expense:
Deposits		1,462,814	1,148,078
Call money, funds purchased, and payables under repurchase agreements and securities lending transactions		674,879	462,294
Due to trust account, other short-term borrowings and trading account liabilities		219,395	178,803
Long-term debt		255,240	255,163
Total		2,612,328	2,044,338
Net interest income		1,490,149	1,266,447
Provision for credit losses		128,584	71,912
Net interest income after provision for credit losses		1,361,565	1,194,535
Non-interest income:
Fees and commissions income		1,013,028	886,230
Foreign exchange gains (losses) —net		202,840	(324,851)
Trading account profits (losses) —net		537,284	(945,382)
Investment securities gains (losses) —net		(485,145)	746,078
Equity in earnings of equity method investees—net		316,339	215,049
Other non-interest income		109,559	87,164
Total		1,693,905	664,288
Non-interest expense:
Salaries and employee benefits		714,830	628,765
Occupancy expenses—net		78,751	77,676
Fees and commissions expenses		203,719	190,172
Outsourcing expenses, including data processing		154,441	161,824
Depreciation of premises and equipment		41,685	36,192
Amortization of intangible assets		145,379	142,271
Insurance premiums, including deposit insurance		48,618	45,062
Communications		31,406	29,731
Taxes and public charges		58,868	53,632
Reversal of off-balance sheet credit instruments		(1,342)	(4,001)
Other non-interest expenses		235,038	208,874
Total		1,711,393	1,570,198
Income before income tax expense		1,344,077	288,625
Income tax expense		348,694	16,664
Net income before attribution of noncontrolling interests		995,383	271,961
Net income (loss) attributable to noncontrolling interests		(63,838)	38,088
Net income attributable to Mitsubishi UFJ Financial Group		1,059,221	233,873
Effect of dilutive instruments:
Restricted stock units and performance stock units		(2,550)	(1,452)
Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions		¥ 1,056,671	¥ 232,421
Shares used for the computation of basic EPS and diluted EPS (Denominator):
Weighted average common shares outstanding (in shares)		11,697,335	12,037,251
Effect of dilutive instruments:
Stock acquisition rights and the common shares of MUFG under the Board Incentive Plan (in shares)	[1]	274	0
Weighted average common shares for diluted computation (in shares)		11,697,609	12,037,251
Earnings per common share applicable to common shareholders of Mitsubishi UFJ Financial Group
Basic earnings (loss) per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)		¥ 90.55	¥ 19.43
Diluted earnings (loss) per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)	[1]	¥ 90.33	¥ 19.31
[1] For the six months ended September 30, 2023 the performance-based plan under the Board Incentive Plan could potentially dilute earnings per common share but were not included in the computation of diluted earnings per common share due to their antidilutive effects.

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income before attribution of noncontrolling interests	¥ 995,383	¥ 271,961
Other comprehensive income, net of tax:
Net unrealized gains (losses) on investment securities	78,649	(162,736)
Net debt valuation adjustments	3,051	(22,260)
Net unrealized gains on derivatives qualifying for cash flow hedges	232	1,404
Defined benefit plans	(24,099)	48,984
Foreign currency translation adjustments	286,518	1,023,535
Total	344,351	888,927
Comprehensive income	1,339,734	1,160,888
Net income (loss) attributable to noncontrolling interests	(63,838)	38,088
Other comprehensive income attributable to noncontrolling interests	101,099	68,110
Comprehensive income attributable to Mitsubishi UFJ Financial Group	¥ 1,302,473	¥ 1,054,690

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Equity (Unaudited) - JPY (¥) ¥ in Millions	Total	Effect of adopting new guidance on troubled debt restructurings and vintage disclosures	Capital stock:	Capital surplus:	Capital surplus: Effect of adopting new guidance on troubled debt restructurings and vintage disclosures	Retained earnings appropriated for legal reserve:	Unappropriated retained earnings:	Unappropriated retained earnings: Effect of adopting new guidance on troubled debt restructurings and vintage disclosures	Accumulated other comprehensive income, net of taxes:	Accumulated other comprehensive income, net of taxes: Effect of adopting new guidance on troubled debt restructurings and vintage disclosures	Treasury stock, at cost:	Total Mitsubishi UFJ Financial Group shareholders’ equity	Total Mitsubishi UFJ Financial Group shareholders’ equity Effect of adopting new guidance on troubled debt restructurings and vintage disclosures	Noncontrolling interests:	Noncontrolling interests: Effect of adopting new guidance on troubled debt restructurings and vintage disclosures
Balance at beginning of period at Mar. 31, 2023			¥ 2,090,270	¥ 4,902,155		¥ 239,571	¥ 8,185,880	¥ 16,170	¥ 871,054	¥ 26,862	¥ (482,552)			¥ 717,219	¥ 14,398
Balance at beginning of period (ASU 2022-02) at Mar. 31, 2023								13,663
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				(6,683)
Other—net				(468)	¥ (1)									(186)	45
Common stock—¥16.00 per share and ¥20.50 per share in 2023 and 2024							(192,382)
Net change during the period	¥ 888,927	¥ (26,617)							820,817	(19,998)				68,110	(6,619)
Purchases of shares of treasury stock											(68)
Sales of shares of treasury stock											1,666
Net decrease (increase) resulting from changes in interests in consolidated subsidiaries, consolidated VIEs, and affiliated companies											(283)
Initial subscriptions of noncontrolling interests														34,219	(98)
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders														(16,735)	(1)
Decrease in noncontrolling interests related to deconsolidation of subsidiaries														(7,405)
Decrease in noncontrolling interests related to disposition of subsidiaries														(817)
Net income before attribution of noncontrolling interests	271,961	3,503					233,873	3,092						38,088	411
Dividends paid to noncontrolling interests														(17,357)	(6)
Balance at end of period at Sep. 30, 2023	17,491,649	34,255	2,090,270	4,895,004	¥ (1)	239,571	8,241,034	19,262	1,691,871	¥ 6,864	(481,237)	¥ 16,676,513	¥ 26,125	815,136	¥ 8,130
Balance at beginning of period at Mar. 31, 2024	18,517,087	¥ 39,874	2,090,270	4,635,892		239,571	9,086,490		2,237,625		(614,111)			841,350
Balance at beginning of period (ASU 2022-02) at Mar. 31, 2024								¥ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				(13,255)
Other—net				(5,569)										78
Common stock—¥16.00 per share and ¥20.50 per share in 2023 and 2024							(240,409)
Net change during the period	344,351								243,252					101,099
Purchases of shares of treasury stock											(118,423)
Sales of shares of treasury stock											9,308
Net decrease (increase) resulting from changes in interests in consolidated subsidiaries, consolidated VIEs, and affiliated companies											7
Initial subscriptions of noncontrolling interests														2,363
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders														13,992
Decrease in noncontrolling interests related to deconsolidation of subsidiaries														(1,072)
Decrease in noncontrolling interests related to disposition of subsidiaries														0
Net income before attribution of noncontrolling interests	995,383						1,059,221							(63,838)
Dividends paid to noncontrolling interests														(22,788)
Balance at end of period at Sep. 30, 2024	¥ 19,481,053		¥ 2,090,270	¥ 4,617,068		¥ 239,571	¥ 9,905,302		¥ 2,480,877		¥ (723,219)	¥ 18,609,869		¥ 871,184

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Equity (Unaudited) (Parenthetical) - ¥ / shares	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Equity [Abstract]
Dividends declared (in Yen per share)	¥ 16	¥ 20.50

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Unaudited) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income before attribution of noncontrolling interests	¥ 995,383	¥ 271,961
Adjustments to reconcile net income before attribution of noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization (Note 5)	187,064	178,463
Provision for credit losses	128,584	71,912
Investment securities (gains) losses—net	485,145	(746,078)
Foreign exchange (gains) losses—net	(581,822)	518,663
Equity in earnings of equity method investees—net	(316,339)	(215,049)
Provision (benefit) for deferred income tax expense	96,801	(199,482)
Increase in trading account assets, excluding foreign exchange contracts	(1,776,220)	(4,404,033)
Increase (decrease) in trading account liabilities, excluding foreign exchange contracts	(425,212)	4,094,299
Increase in accrued interest receivable and other receivables	(19,556)	(186,264)
Decrease in accrued interest payable and other payables	(377,251)	(644,637)
Net increase (decrease) in accrued income taxes and decrease (increase) in income tax receivables	77,897	(55,050)
Net decrease (increase) in collateral for derivative transactions	409,188	(755,572)
Decrease in cash collateral for the use of Bank of Japan’s settlement infrastructure	873,000	0
Other—net	(280,849)	170,837
Net cash used in operating activities	(524,187)	(1,900,030)
Cash flows from investing activities:
Proceeds from sales of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)	25,573,028	35,279,573
Proceeds from maturities of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)	23,391,946	15,219,441
Purchases of Available-for-sale debt securities (including purchases of debt securities under the fair value option) (Note 3)	(47,046,817)	(42,843,667)
Proceeds from maturities of Held-to-maturity debt securities	3,456,073	226,392
Purchases of Held-to-maturity debt securities	(1,666,599)	(2,633,518)
Proceeds from sales and redemption of Equity securities (including proceeds from equity securities under the fair value option)	2,234,565	1,192,555
Purchases of Equity securities (including purchases of equity securities under the fair value option)	(1,641,403)	(1,350,235)
Net decrease (increase) in loans	(3,214,221)	1,374,285
Net decrease (increase) in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions	1,637,142	(2,421,615)
Capital expenditures for premises and equipment	(58,288)	(47,850)
Purchases of intangible assets	(148,415)	(152,945)
Proceeds from sales of consolidated VIEs and subsidiaries—net	45,167	46,392
Other—net	72,101	(15,465)
Net cash provided by investing activities	2,542,341	3,809,239
Cash flows from financing activities:
Net increase (decrease) in deposits	(932,669)	2,126,968
Net increase (decrease) in call money, funds purchased, and payables under repurchase agreements and securities lending transactions	729,760	(9,762,605)
Net increase (decrease) in due to trust account and other short-term borrowings	11,713,964	(475,580)
Proceeds from issuance of long-term debt	1,329,247	2,012,445
Repayments of long-term debt	(16,446,445)	(2,022,621)
Proceeds from sales of treasury stock	11,002	1,504
Dividends paid	(240,285)	(192,313)
Payments for acquisition of treasury stock	(118,423)	(68)
Other—net	(3,780)	(43,706)
Net cash used in financing activities	(3,957,629)	(8,355,976)
Effect of exchange rate changes on cash and cash equivalents	(36,770)	1,559,746
Net decrease in cash and cash equivalents	(1,976,245)	(4,887,021)
Cash and cash equivalents at beginning of period	110,124,736	113,957,445
Cash and cash equivalents:
Cash, due from banks and interest-earning deposits in other banks	108,139,576	109,067,365
Restricted cash included in other assets	8,915	3,059
Cash and cash equivalents at end of period	108,148,491	109,070,424
Cash paid during the period for:
Interest	2,673,967	1,988,319
Income taxes, net of refunds	173,996	271,196
Non-cash investing and financing activities:
Assets acquired under finance lease arrangements	6,988	9,620
Assets acquired under operating lease arrangements	22,618	22,865
HC Philippines
Cash flows from investing activities:
Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK, net of cash acquired	0	(64,104)
Noncash from acquisition
Fair value of assets acquired, excluding cash and cash equivalents	0	159,331
Fair value of liabilities assumed	0	95,448
MUFG Pension And Market Services Holding Ltd
Cash flows from investing activities:
Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK, net of cash acquired	(91,938)	0
Noncash from acquisition
Fair value of assets acquired, excluding cash and cash equivalents	282,224	0
Fair value of liabilities assumed	¥ 189,312	¥ 0

Basis of Condensed Consolidated

Basis of Condensed Consolidated Financial Statements	6 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Basis of Condensed Consolidated Financial Statements	BASIS OF CONDENSED CONSOLIDATED FINANCIAL STATEMENTS Description of Business Mitsubishi UFJ Financial Group, Inc. (“MUFG”) is a holding company for MUFG Bank, Ltd. (“MUFG Bank” or “BK”), Mitsubishi UFJ Trust and Banking Corporation (“Mitsubishi UFJ Trust and Banking” or “TB”), Mitsubishi UFJ Securities Holdings Co., Ltd. (“Mitsubishi UFJ Securities Holdings”), Mitsubishi UFJ NICOS Co., Ltd. (“Mitsubishi UFJ NICOS”), and other subsidiaries. Mitsubishi UFJ Securities Holdings is an intermediate holding company for Mitsubishi UFJ Morgan Stanley Securities Co., Ltd. (“Mitsubishi UFJ Morgan Stanley Securities”). Through its subsidiaries and affiliated companies, MUFG engages in a broad range of financial operations, including commercial banking, investment banking, trust banking and asset management services, securities businesses, and credit card businesses, and it provides related services to individual and corporate customers. See Note 17 for more information by business segment. Basis of Financial Statements The accompanying condensed consolidated financial statements are presented in Japanese yen, the currency of the country in which MUFG is incorporated and principally operates. The accompanying condensed consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the United States of America (“U.S. GAAP”). In certain respects, the accompanying condensed consolidated financial statements reflect adjustments to conform with U.S. GAAP and therefore are not included in the consolidated financial statements issued by MUFG in accordance with accounting principles generally accepted in Japan (“Japanese GAAP”) and certain of its subsidiaries in accordance with the corresponding applicable statutory requirements and accounting practices in their respective countries of incorporation. The major adjustments include those relating to (1) investment securities, (2) derivative financial instruments, (3) allowance for credit losses, (4) income taxes, (5) consolidation, (6) premises and equipment, (7) transfer of financial assets, (8) accrued severance indemnities and pension liabilities, (9) goodwill and other intangible assets and (10) lease transactions. The accompanying condensed semiannual consolidated financial statements should be read in conjunction with the consolidated financial statements for the fiscal year ended March 31, 2024. Certain information that would be included in annual financial statements but is not required for reporting purposes under U.S. GAAP has been omitted or condensed. Fiscal years of certain subsidiaries, which end on December 31, and MUFG’s fiscal year, which ends on March 31, have been treated as coterminous. Effective April 1, 2024, the MUFG Group changed the fiscal year end of Krungsri’s financial statements consolidated to MUFG, from December 31 to March 31. The MUFG Group believes that this change in accounting principle is preferable as it provides investors with more timely and relevant financial information. We applied this change in accounting principle retrospectively to prior periods. Thus, the condensed consolidated financial statements for the six months ended September 30, 2023 and fiscal year ended March 31, 2024 were adjusted. The following table shows a summary of the adjustments of the condensed consolidated financial statements for the six months ended September 30, 2023 and fiscal year ended March 31, 2024. As of March 31, 2024 (in millions) As Previously Reported Adjustments As Adjusted ASSETS Cash and due from banks ¥ 4,391,530 ¥ 25,116 ¥ 4,416,646 Interest-earning deposits in other banks 105,631,633 70,344 105,701,977 Cash, due from banks and interest-earning deposits in other banks 110,023,163 95,460 110,118,623 Call loans, funds sold, and receivables under resale agreements 20,233,913 328,445 20,562,358 Receivables under securities borrowing transactions 5,000,989 (173) 5,000,816 Trading account assets 49,745,992 23,414 49,769,406 Investment securities: Available-for-sale debt securities 31,395,372 27,595 31,422,967 Equity securities 6,132,092 277 6,132,369 Total investment securities 62,371,426 27,872 62,399,298 Loans, net of unearned income, unamortized premiums and deferred loan fees 127,936,495 (26,192) 127,910,303 Allowance for credit losses (1,366,221) 9,260 (1,356,961) Net loans 126,570,274 (16,932) 126,553,342 Premises and equipment—net 873,027 (386) 872,641 Customers’ acceptance liability 430,221 4,851 435,072 Intangible assets—net 1,298,966 (1,206) 1,297,760 Goodwill 490,344 3,414 493,758 Other assets 20,398,146 (17,684) 20,380,462 Total assets ¥ 397,436,461 ¥ 447,075 ¥ 397,883,536 As of March 31, 2024 (in millions) As Previously Reported Adjustments As Adjusted LIABILITIES AND EQUITY Deposits: Overseas offices, principally interest-bearing 63,142,974 718,616 63,861,590 Total deposits 246,417,384 718,616 247,136,000 Call money, funds purchased, and payables under repurchase agreements 40,804,921 (20,298) 40,784,623 Payables under securities lending transactions 1,016,931 7 1,016,938 Due to trust account and other short-term borrowings 15,796,947 4,376 15,801,323 Trading account liabilities 16,587,151 (7,629) 16,579,522 Bank acceptances outstanding 430,221 4,851 435,072 Long-term debt 39,922,322 90,497 40,012,819 Other liabilities 17,983,371 (383,219) 17,600,152 Total liabilities 378,959,248 407,201 379,366,449 Commitments and contingent liabilities Mitsubishi UFJ Financial Group shareholders’ equity: Capital surplus 4,636,097 (205) 4,635,892 Retained earnings: Unappropriated retained earnings 9,072,572 13,918 9,086,490 Accumulated other comprehensive income, net of taxes 2,221,263 16,362 2,237,625 Total Mitsubishi UFJ Financial Group shareholders’ equity 17,645,662 30,075 17,675,737 Noncontrolling interests 831,551 9,799 841,350 Total equity 18,477,213 39,874 18,517,087 Total liabilities and equity ¥ 397,436,461 ¥ 447,075 ¥ 397,883,536 Six months ended September 30, 2023 (in millions) As Previously Reported Adjustments As Adjusted Interest income: Loans, including fees ¥ 2,011,363 ¥ 30,127 ¥ 2,041,490 Deposits in other banks 355,192 893 356,085 Investment securities 355,121 657 355,778 Trading account assets 360,921 40 360,961 Call loans, funds sold, and receivables under resale agreements and securities borrowing transactions 193,947 2,524 196,471 Total 3,276,544 34,241 3,310,785 Interest expense: Deposits 1,142,035 6,043 1,148,078 Call money, funds purchased, and payables under repurchase agreements and securities lending transactions 461,932 362 462,294 Due to trust account, other short-term borrowings and trading account liabilities 174,949 3,854 178,803 Long-term debt 252,757 2,406 255,163 Total 2,031,673 12,665 2,044,338 Net interest income 1,244,871 21,576 1,266,447 Provision for credit losses 61,772 10,140 71,912 Net interest income after provision for credit losses 1,183,099 11,436 1,194,535 Non-interest income: Fees and commissions income 881,258 4,972 886,230 Foreign exchange losses—net (329,089) 4,238 (324,851) Trading account losses—net (940,660) (4,722) (945,382) Investment securities gains—net 743,395 2,683 746,078 Equity in earnings of equity method investees—net 214,835 214 215,049 Other non-interest income 86,876 288 87,164 Total 656,615 7,673 664,288 Non-interest expense: Salaries and employee benefits 623,877 4,888 628,765 Occupancy expenses—net 76,784 892 77,676 Fees and commissions expenses 189,657 515 190,172 Outsourcing expenses, including data processing 162,312 (488) 161,824 Depreciation of premises and equipment 35,813 379 36,192 Amortization of intangible assets 141,668 603 142,271 Insurance premiums, including deposit insurance 44,684 378 45,062 Communications 29,391 340 29,731 Taxes and public charges 52,467 1,165 53,632 Reversal of off-balance sheet credit instruments (3,646) (355) (4,001) Other non-interest expenses 202,385 6,489 208,874 Total 1,555,392 14,806 1,570,198 Income before income tax expense 284,322 4,303 288,625 Income tax expense 15,864 800 16,664 Net income before attribution of noncontrolling interests 268,458 3,503 271,961 Net income attributable to noncontrolling interests 37,677 411 38,088 Net income attributable to Mitsubishi UFJ Financial Group ¥ 230,781 ¥ 3,092 ¥ 233,873 Six months ended September 30, 2023 (in millions) As Previously Reported Adjustments As Adjusted Income used for the computation of basic EPS and diluted EPS (Numerator): Net income attributable to Mitsubishi UFJ Financial Group ¥ 230,781 ¥ 3,092 ¥ 233,873 Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions ¥ 229,329 ¥ 3,092 ¥ 232,421 Six months ended September 30, 2023 (in Yen) As Previously Reported Adjustments As Adjusted Earnings per common share applicable to common shareholders of Mitsubishi UFJ Financial Group Basic earnings per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group ¥ 19.17 ¥ 0.26 ¥ 19.43 Diluted earnings per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group 19.05 0.26 19.31 Six months ended September 30, 2023 (in millions) As Previously Reported Adjustments As Adjusted Net income before attribution of noncontrolling interests ¥ 268,458 ¥ 3,503 ¥ 271,961 Other comprehensive income, net of tax: Net unrealized losses on investment securities (162,130) (606) (162,736) Net unrealized gains on derivatives qualifying for cash flow hedges 15 1,389 1,404 Defined benefit plans 48,965 19 48,984 Foreign currency translation adjustments 1,050,954 (27,419) 1,023,535 Total 915,544 (26,617) 888,927 Comprehensive income 1,184,002 (23,114) 1,160,888 Net income attributable to noncontrolling interests 37,677 411 38,088 Other comprehensive income attributable to noncontrolling interests 74,729 (6,619) 68,110 Comprehensive income attributable to Mitsubishi UFJ Financial Group ¥ 1,071,596 ¥ (16,906) ¥ 1,054,690 Six months ended September 30, 2023 (in millions, except per share amount) As Previously Reported Adjustments As Adjusted Capital surplus: Other—net (467) (1) (468) Balance at end of period ¥ 4,895,005 (1) ¥ 4,895,004 Unappropriated retained earnings: Balance at beginning of period ¥ 8,169,710 16,170 ¥ 8,185,880 Net income attributable to Mitsubishi UFJ Financial Group 230,781 3,092 233,873 Balance at end of period ¥ 8,221,772 19,262 ¥ 8,241,034 Accumulated other comprehensive income, net of taxes: Balance at beginning of period ¥ 844,192 26,862 ¥ 871,054 Net change during the period 840,815 (19,998) 820,817 Balance at end of period ¥ 1,685,007 6,864 ¥ 1,691,871 Six months ended September 30, 2023 (in millions, except per share amount) As Previously Reported Adjustments As Adjusted Total Mitsubishi UFJ Financial Group shareholders’ equity ¥ 16,650,388 ¥ 26,125 ¥ 16,676,513 Noncontrolling interests: Balance at beginning of period ¥ 702,821 ¥ 14,398 ¥ 717,219 Initial subscriptions of noncontrolling interests 34,317 (98) 34,219 Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders (16,734) (1) (16,735) Net income attributable to noncontrolling interests 37,677 411 38,088 Dividends paid to noncontrolling interests (17,351) (6) (17,357) Other comprehensive income, net of taxes 74,729 (6,619) 68,110 Other—net (231) 45 (186) Balance at end of period ¥ 807,006 ¥ 8,130 ¥ 815,136 Total equity ¥ 17,457,394 ¥ 34,255 ¥ 17,491,649 Six months ended September 30, 2023 (in millions) As Previously Reported Adjustments As Adjusted Cash flows from operating activities: Net income before attribution of noncontrolling interests ¥ 268,458 ¥ 3,503 ¥ 271,961 Adjustments to reconcile net income before attribution of noncontrolling interests to net cash provided by operating activities: Depreciation and amortization 177,481 982 178,463 Provision for credit losses 61,772 10,140 71,912 Investment securities gains—net (743,395) (2,683) (746,078) Foreign exchange losses—net 484,560 34,103 518,663 Equity in earnings of equity method investees—net (214,835) (214) (215,049) Benefit for deferred income tax expense (200,007) 525 (199,482) Increase in trading account assets, excluding foreign exchange contracts (4,405,363) 1,330 (4,404,033) Increase in trading account liabilities, excluding foreign exchange contracts 4,082,033 12,266 4,094,299 Increase in accrued interest receivable and other receivables (138,342) (47,922) (186,264) Decrease in accrued interest payable and other payables (663,358) 18,721 (644,637) Net decrease in accrued income taxes and increase in income tax receivables (38,880) (16,170) (55,050) Net increase in collateral for derivative transactions (737,229) (18,343) (755,572) Other—net (15,161) 185,998 170,837 Net cash used in operating activities (2,082,266) 182,236 (1,900,030) Cash flows from investing activities: Proceeds from sales of Available-for-sale debt securities 35,278,674 899 35,279,573 Proceeds from maturities of Available-for-sale debt securities 15,222,492 (3,051) 15,219,441 Purchases of Available-for-sale debt securities (42,823,777) (19,890) (42,843,667) Proceeds from sales and redemption of Equity securities 1,193,033 (478) 1,192,555 Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of Krungsri, net of cash acquired (55,868) (8,236) (64,104) Purchases of Equity securities (including purchases of equity securities under the fair value option) (1,351,798) 1,563 (1,350,235) Net decrease in loans 1,252,246 122,039 1,374,285 Net increase in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions (2,635,756) 214,141 (2,421,615) Capital expenditures for premises and equipment (47,932) 82 (47,850) Purchases of intangible assets (152,072) (873) (152,945) Other—net (31,191) 15,726 (15,465) Net cash provided by investing activities 3,487,317 321,922 3,809,239 Cash flows from financing activities: Net increase in deposits 2,421,039 (294,071) 2,126,968 Net decrease in call money, funds purchased, and payables under repurchase agreements and securities lending transactions (9,771,370) 8,765 (9,762,605) Net decrease in due to trust account and other short-term borrowings (521,193) 45,613 (475,580) Proceeds from issuance of long-term debt 2,022,741 (10,296) 2,012,445 Repayments of long-term debt (2,021,065) (1,556) (2,022,621) Other—net (43,203) (503) (43,706) Net cash used in financing activities (8,103,928) (252,048) (8,355,976) Effect of exchange rate changes on cash and cash equivalents 1,569,102 (9,356) 1,559,746 Net decrease in cash and cash equivalents (5,129,775) 242,754 (4,887,021) Cash and cash equivalents at beginning of period 114,044,090 (86,645) 113,957,445 Cash and cash equivalents: Cash, due from banks and interest-earning deposits in other banks 108,911,256 156,109 109,067,365 Cash and cash equivalents at end of period ¥ 108,914,315 ¥ 156,109 ¥ 109,070,424 Supplemental disclosure of cash flow information: Cash paid during the period for: Interest ¥ 1,983,677 ¥ 4,642 ¥ 1,988,319 Income taxes, net of refunds 254,751 16,445 271,196 Non-cash investing and financing activities: Assets acquired under finance lease arrangements 5,022 4,598 9,620 Assets acquired under operating lease arrangements 22,905 (40) 22,865 Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK Fair value of assets acquired, excluding cash and cash equivalents 151,231 8,100 159,331 For the current period ended September 30, 2024, the effects of the change on the condensed consolidated statements of income and condensed consolidated balance sheet are immaterial. The major affected financial statement line items are net decrease in collateral for derivative transactions by ¥44,622 million, net decrease in loans by ¥214,790 million, net decrease in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions by ¥328,578 million, net increase in deposits by ¥766,141 million, net decrease in call money, funds purchased, and payables under repurchase agreements and securities lending transactions by ¥117,990 million, and net increase in due to trust account and other short-term borrowings by ¥224,595 million in the condensed consolidated statements of cash flows. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Accounting Changes Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions —In June 2022, the Financial Accounting Standards Board (“FASB”) issued new guidance which clarifies the guidance when measuring the fair value of an equity security subject to contractual restrictions that prohibit the sale of an equity security. The guidance also introduces new disclosure requirements for equity securities subject to contractual sale restrictions that are measured at fair value. This guidance is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The MUFG Group adopted this guidance on April 1, 2024, and there was no material impact on its financial position and results of operations. See Note 18 for further details of disclosures required by this guidance. Recently Issued Accounting Pronouncements Improvements to Reportable Segment Disclosures —In November 2023, the FASB issued new guidance which clarifies and enhances the requirements for reportable segment disclosures. This guidance requires additional reportable segment disclosures on an annual and interim basis, primarily about significant segment expenses and other segment items that are regularly provided to the chief operating decision maker and included within the reported measure of segment profit or loss. This guidance does not change how operating segments are identified or aggregated, or how quantitative thresholds are applied to determine the reportable segments. The guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The MUFG Group is currently evaluating what effect this guidance will have on its segment information disclosures.

Business Developments

Business Developments	6 Months Ended
	Sep. 30, 2024
Business Combinations [Abstract]
Business Developments	BUSINESS DEVELOPMENTS Acquisition of Link Administration Holdings Limited On May 16, 2024, Mitsubishi UFJ Trust and Banking acquired 100% of the shares of Link Administration Holdings Limited for ¥113,523 million in cash. The new name of the company is MUFG Pension & Market Services Holdings Limited (“MPMS”). The global pension and stock administration services will be provided under the new brand name “MUFG Pension & Market Services” driving MUFG to further accelerate its global business expansion via access to Australian funds and global corporate clients, facilitating the Global Investor Services Business to offer a broad range of solutions, allowing it to strengthen its global reach, develop growth opportunities, and expand its business scale. The assets acquired and liabilities assumed were recorded at their estimated fair values on the acquisition date. These fair value estimates are considered provisional and are subject to change pending the receipt of additional information in relation to closing date fair values, but not to exceed a period of one year after the closing date of the acquisition. During the six months ended September 30, 2024, the MUFG Group incurred ¥3,856 million of acquisition-related costs. These expenses are included in Other non-interest expenses in the accompanying condensed consolidated statements of income for the six months ended September 30, 2024. The total assets and liabilities of the acquired business were ¥152,035 million, including cash and bank deposits of ¥21,586 million and intangible assets of ¥69,021 million which consist of software and customer relationships, and ¥189,312 million, including long-term borrowings of ¥118,440 million, r espectively. The goodwill resulting from the acquisition was ¥151,774 million, which was not deductible for income tax purposes, and was allocated to the Asset Management & Investor Services Business Group Segment. The intangible assets resulting from the acquisition were ¥46,878 million with a weighted average amortization period of 17.8 years. This amount is entirely related to customer relationships. The revenue and net loss of MPMS since the acquisition date were ¥13,354 million and ¥114 million, respectively, for the six months ended September 30, 2024. Pro forma statements of income The following unaudited pro forma statements of income present the results of income as if the acquisition of MPMS had occurred on April 1, 2023: Six months ended September 30, 2023 2024 (in millions) Statements of income data Total revenue ¥ 74,696 ¥ 58,886 Net income attributable to Mitsubishi UFJ Financial Group ¥ 19,964 ¥ 4,678 The unaudited pro forma statements of income include the pro forma adjustments to reflect the impact of amortizing certain acquisition accounting adjustments relating to intangible assets subject to amortization of ¥1,158 million and ¥1,271 million for the six months ended September 30, 2023 and 2024, respectively.

Investment Securities

Investment Securities	6 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Investment Securities	INVESTMENT SECURITIES The following tables present the amortized cost, gross unrealized gains and losses, and fair value of Available-for-sale debt securities and Held-to-maturity debt securities at March 31, 2024 and September 30, 2024: At March 31, 2024 (As Adjusted): Amortized cost Gross unrealized gains Gross unrealized losses Fair value (in millions) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 23,287,730 ¥ 5,768 ¥ 126,098 ¥ 23,167,400 Japanese prefectural and municipal bonds 1,055,564 227 9,800 1,045,991 Foreign government and official institution bonds 3,428,199 4,981 130,629 3,302,551 Corporate bonds 1,019,832 10,685 4,049 1,026,468 Residential mortgage-backed securities 1,229,615 255 345 1,229,525 Asset-backed securities 1,239,772 9,251 1,877 1,247,146 Other debt securities 407,917 3,419 7,450 403,886 Total ¥ 31,668,629 ¥ 34,586 ¥ 280,248 ¥ 31,422,967 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 15,191,741 ¥ 4,745 ¥ 97,603 ¥ 15,098,883 Japanese prefectural and municipal bonds 1,999,182 2,048 16,328 1,984,902 Corporate bonds 119,490 93 179 119,404 Residential mortgage-backed securities 4,952,083 3,153 179,537 4,775,699 Asset-backed securities 2,581,466 3,681 6,521 2,578,626 Total ¥ 24,843,962 ¥ 13,720 ¥ 300,168 ¥ 24,557,514 At September 30, 2024: Amortized Gross unrealized gains Gross unrealized losses Fair value (in millions) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 18,761,335 ¥ 10,245 ¥ 131,338 ¥ 18,640,242 Japanese prefectural and municipal bonds 871,795 11 11,188 860,618 Foreign government and official institution bonds 3,487,233 16,365 73,603 3,429,995 Corporate bonds 937,702 9,761 5,440 942,023 Residential mortgage-backed securities 1,173,805 266 314 1,173,757 Asset-backed securities 1,402,431 10,739 515 1,412,655 Other debt securities 501,639 5,326 3,429 503,536 Total ¥ 27,135,940 ¥ 52,713 ¥ 225,827 ¥ 26,962,826 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 13,842,654 ¥ 14,647 ¥ 133,864 ¥ 13,723,437 Japanese prefectural and municipal bonds 2,216,346 987 23,987 2,193,346 Corporate bonds 191,305 157 544 190,918 Residential mortgage-backed securities 4,670,796 29,014 81,381 4,618,429 Asset-backed securities 1,818,347 5,364 1,208 1,822,503 Total ¥ 22,739,448 ¥ 50,169 ¥ 240,984 ¥ 22,548,633 Contractual Maturities The amortized cost and fair values of Held-to-maturity debt securities and the fair values of Available-for-sale debt securities at September 30, 2024 by contractual maturity are shown below. Expected maturities may be shorter than contractual maturities because issuers of debt securities may have the right to call or prepay obligations with or without penalties. Debt securities not due at a single maturity date and securities embedded with call or prepayment options, such as mortgage-backed securities, are included in the table below based on their contractual maturities. Held-to-maturity debt securities Available-for-sale debt securities Amortized Fair value Fair value (in millions) Due in one year or less ¥ 2,484,027 ¥ 2,481,938 ¥ 16,621,054 Due from one year to five years 8,156,136 8,089,148 5,235,427 Due from five years to ten years 6,548,526 6,475,490 2,182,338 Due after ten years 5,550,759 5,502,057 2,924,007 Total ¥ 22,739,448 ¥ 22,548,633 ¥ 26,962,826 Realized Gains and Losses For the six months ended September 30, 2023 and 2024, gross realized gains on sales of Available-for-sale debt securities were ¥79,165 million and ¥36,529 million, respectively, and gross realized losses on sales of Available-for-sale debt securities were ¥26,596 million and ¥33,773 million, respectively. Impairment Losses on Investment Securities For the six months ended September 30, 2023, impairment losses on Available-for-sale debt securities, mainly comprised of corporate bonds, were included in Investment securities gains (losses)—net in the accompanying condensed consolidated statements of income and were not material. For the six months ended September 30, 2024, impairment losses on Available-for-sale debt securities of ¥12,825 million, mainly comprised of other debt securities, were included in Investment securities gains (losses)—net in the accompanying condensed consolidated statements of income. For the six months ended September 30, 2023 and 2024, the MUFG Group’s Held-to-maturity debt securities were guaranteed by Japanese or U.S. government entities or agencies and had a long history of no credit losses or were rated investment grade. Based on the analysis performed, the MUFG Group has the intent and ability to hold these securities to maturity. Therefore, no credit losses were expected on these securities and no impairment loss has been recorded. Gross Unrealized Losses and Fair Value The following tables show the gross unrealized losses and fair value of Available-for-sale debt securities at March 31, 2024 and September 30, 2024 by length of time that individual securities in each category have been in a continuous loss position: Less than 12 months 12 months or more Total At March 31, 2024 (As Adjusted): Fair value Gross Fair value Gross Fair value Gross Number of securities (in millions, except number of securities) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 18,640,364 ¥ 9,427 ¥ 1,756,792 ¥ 116,671 ¥ 20,397,156 ¥ 126,098 440 Japanese prefectural and municipal bonds 416,047 1,502 520,133 8,298 936,180 9,800 574 Foreign government and official institution bonds 358,973 9,306 1,942,369 121,323 2,301,342 130,629 97 Corporate bonds 167,004 467 442,274 3,582 609,278 4,049 309 Residential mortgage-backed securities 185,197 14 343,621 331 528,818 345 14 Asset-backed securities 23,810 9 160,109 1,868 183,919 1,877 17 Other debt securities 202,787 54 64,908 7,396 267,695 7,450 56 Total ¥ 19,994,182 ¥ 20,779 ¥ 5,230,206 ¥ 259,469 ¥ 25,224,388 ¥ 280,248 1,507 Less than 12 months 12 months or more Total At September 30, 2024: Fair value Gross Fair value Gross Fair value Gross Number of (in millions, except number of securities) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥12,386,848 ¥ 5,407 ¥ 1,757,038 ¥ 125,931 ¥ 14,143,886 ¥ 131,338 417 Japanese prefectural and municipal bonds 167,167 610 672,133 10,578 839,300 11,188 529 Foreign government and official institution bonds 255,136 2,852 1,765,019 70,751 2,020,155 73,603 83 Corporate bonds 150,753 1,119 459,710 4,321 610,463 5,440 369 Residential mortgage-backed securities 207,273 15 326,360 299 533,633 314 15 Asset-backed securities 118,095 285 45,666 230 163,761 515 19 Other debt securities 362,704 321 50,322 3,108 413,026 3,429 93 Total ¥ 13,647,976 ¥ 10,609 ¥ 5,076,248 ¥ 215,218 ¥ 18,724,224 ¥ 225,827 1,525 Evaluating Available-for-sale Debt Securities for Impairment Losses The following describes the nature of the MUFG Group’s Available-for-sale debt securities and the conclusions reached in determining whether impairment losses exist. Japanese national government and Japanese government agency bonds, Japanese prefectural and municipal bonds, Foreign government and official institution bonds As of September 30, 2024, unrealized losses associated with these securities were deemed to be attributable to changes in market interest rates rather than a deterioration in the creditworthiness of the underlying obligor. Based on a consideration of factors, including cash flow analysis, the MUFG Group expects to recover the entire amortized cost basis of these securities. Accordingly, no credit loss was identified as of September 30, 2024 and no impairment loss has been recorded. Corporate bonds As of September 30, 2024, unrealized losses associated with corporate bonds were primarily related to private placement bonds issued by Japanese non-public companies. The credit loss component recognized in earnings is identified as the amount of principal cash flows not expected to be received over the remaining terms of the bonds as estimated using the MUFG Group’s cash flow projections. The key assumptions include probability of default based on credit ratings of the bond issuers and loss given default. Residential mortgage-backed securities As of September 30, 2024, unrealized losses associated with these securities were mainly resulting from changes in interest rates and not from changes in credit quality. Based on a consideration of factors, including cash flow analysis, the MUFG Group expects to recover the entire amortized cost basis of these securities. Accordingly, no credit loss was identified as of September 30, 2024 and no impairment loss had been recorded. Asset-backed securities As of September 30, 2024, unrealized losses associated with these securities, other than highly illiquid securities for which fair values are difficult to determine, were mainly resulting from changes in interest rates and not from changes in credit quality. Based on a consideration of factors, including cash flow analysis, the MUFG Group expects to recover the entire amortized cost basis of these securities. For the highly illiquid securities, including certain collateralized loan obligations (“CLOs”), unrealized losses arise from widening credit spreads, deterioration of the credit quality of the underlying collateral, uncertainty regarding the valuation of such securities and the market’s view of the performance of the fund managers. When the fair value of a security is lower than its amortized cost or when any security is subject to a deterioration in credit rating, the MUFG Group undertakes a cash flow analysis of the underlying collateral to estimate the credit loss and confirms the intent and ability to hold these securities until recovery. Based on the analysis performed, no credit loss was identified as of September 30, 2024 and no impairment loss has been recorded. Equity Securities The following table presents net realized gains (losses) on sales of equity securities, and net unrealized gains (losses) on equity securities still held at September 30, 2023 and 2024. Six months ended 2023 2024 (in millions) Net gains (losses) recognized during the period (1) ¥ 689,090 ¥ (474,755) Less: Net gains (losses) recognized during the period on equity securities sold during the period 19,247 (97,385) Net unrealized gains (losses) recognized during the reporting period still held at the reporting date ¥ 669,843 ¥ (377,370) Note: (1) Included in Investment securities gains (losses)—net. Measurement Alternative of Equity Securities The following table presents the carrying value of nonmarketable equity securities that are measured at cost minus impairment, if any, plus or minus changes resulting from observable price changes (“measurement alternative”), held at March 31, 2024 and September 30, 2024. March 31, September 30, (in millions) Measurement alternative balance ¥ 483,218 ¥ 571,434 The related adjustments for these securities during the six months ended September 30, 2023 and 2024 were as follows: Six months ended 2023 2024 (in millions) Measurement alternative impairment losses (1)(4) ¥ (8,187) ¥ (14,782) Measurement alternative downward changes for observable prices (1)(2)(3)(5) ¥ (1,567) ¥ — Measurement alternative upward changes for observable prices (1)(2)(3)(6) ¥ 783 ¥ 6,309 Notes: (1) Included in Investment securities gains (losses)—net. (2) Under the measurement alternative, nonmarketable equity securities are carried at cost plus or minus changes resulting from observable prices in orderly transactions for the identical or a similar investment of the same issuer. (3) The MUFG Group applied measurement alternative downward or upward changes to certain nonmarketable equity securities, resulting from observable prices in orderly transactions, such as partial repurchase and transactions by other entities. (4) The cumulative impairment losses at March 31, 2024 and September 30, 2024 were ¥29,569 million and ¥43,714 million, respectively. (5) The cumulative downward changes for observable prices at March 31, 2024 and September 30, 2024 were ¥2,961 million and ¥2,961 million, respectively. (6) The cumulative upward changes for observable prices at March 31, 2024 and September 30, 2024 were ¥58,104 million and ¥64,386 million, respectively.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	6 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Loans and Allowance for Credit Losses	LOANS AND ALLOWANCE FOR CREDIT LOSSES The MUFG Group classifies its loan portfolio into the following portfolio segments—Commercial, Residential, Card, Krungsri, and Other based on the grouping used by the MUFG Group to determine the allowance for credit losses. The MUFG Group further classifies the Commercial segment into classes based on initial measurement attributes, risk characteristics, and its method of monitoring and assessing credit risk. See Note 1 to the consolidated financial statements for the fiscal year ended March 31, 2024 for further information. Total Outstanding Loans and Past Due Analysis The table below presents total outstanding loans and past due analysis by class at March 31, 2024 and September 30, 2024. Past Due At March 31, 2024 1-3 months Greater Total Current Loans Total Past Due 90 Days and (in millions) Commercial Domestic ¥ 6,108 ¥ 8,289 ¥ 14,397 ¥ 57,371,397 ¥ 112,496 ¥ 57,498,290 ¥ 3,004 Foreign 1,447 27,517 28,964 46,483,163 841,088 47,353,215 13,307 Residential 33,943 11,980 45,923 12,451,455 — 12,497,378 3,837 Card 15,790 28,388 44,178 440,672 — 484,850 — Krungsri 247,919 189,558 437,477 8,349,705 17,930 8,805,112 — Other 23,125 28,553 51,678 1,706,489 — 1,758,167 — Total ¥ 328,332 ¥ 294,285 ¥ 622,617 ¥ 126,802,881 ¥ 971,514 ¥ 128,397,012 ¥ 20,148 Unearned income, unamortized premiums—net and deferred loan fees—net (486,709) Total ¥ 127,910,303 Past Due At September 30, 2024: 1-3 months Greater Total Current Loans Total Past Due 90 Days and Accruing (in millions) Commercial Domestic ¥ 9,373 ¥ 8,091 ¥ 17,464 ¥ 62,023,862 ¥ 139,218 ¥ 62,180,544 ¥ 3,441 Foreign 684 24,115 24,799 43,813,774 797,689 44,636,262 5,176 Residential 32,170 10,943 43,113 12,377,924 — 12,421,037 3,384 Card 15,590 29,151 44,741 440,138 — 484,879 — Krungsri 232,459 236,768 469,227 8,535,220 11,285 9,015,732 — Other 25,262 33,647 58,909 1,933,190 — 1,992,099 — Total ¥ 315,538 ¥ 342,715 ¥ 658,253 ¥ 129,124,108 ¥ 948,192 ¥ 130,730,553 ¥ 12,001 Unearned income, unamortized premiums—net and deferred loan fees—net (485,190) Total ¥ 130,245,363 Nonaccrual Loans Originated loans are generally placed on nonaccrual status when substantial doubt exists as to the full and timely collection of either principal or interest, when principal or interest is contractually past due one month or more with respect to loans within all classes of the Commercial segment, three months or more with respect to loans within the Card, and Krungsri segments, and six months or more with respect to loans within the Residential segment. See Note 1 to the consolidated financial statements for the fiscal year ended March 31, 2024 for further information. The information on nonaccrual loans by class at March 31, 2024 and September 30, 2024 are shown below: Recorded Loan Balance March 31, 2024 (As Adjusted): Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) (in millions) Commercial Domestic ¥ 295,055 ¥ 89,994 Foreign 225,572 59,564 Residential 41,101 4,067 Card 72,554 — Krungsri 258,511 7,159 Other 33,782 16 Total ¥ 926,575 ¥ 160,800 Recorded Loan Balance September 30, 2024: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) (in millions) Commercial Domestic ¥ 305,247 ¥ 84,885 Foreign 258,095 41,402 Residential 38,259 4,234 Card 74,639 — Krungsri 313,619 10,004 Other 37,444 9 Total ¥ 1,027,303 ¥ 140,534 Notes: (1) Nonaccrual loans in the above table do not include loans held for sale of ¥396,331 million and ¥326,801 million at March 31, 2024 and September 30, 2024, respectively. (2) These loans do not require an allowance for credit losses because the recorded loan balance equals, or does not exceed, the present value of expected future cash flows discounted at the loans’ effective interest rate, or the fair value of the collateral if the loan is a collateral-dependent loan. The following table shows information regarding recognized interest income on nonaccrual loans for the six months ended September 30, 2023 and 2024: September 30, September 30, 2024 (in millions) Commercial Domestic ¥ 2,209 ¥ 2,121 Foreign 3,534 5,026 Residential 276 237 Card 8 14 Krungsri 5,225 7,585 Other 1,549 1,644 Total ¥ 12,801 ¥ 16,627 Loan Modifications The following table summarizes the MUFG Group’s loan modifications that were made to borrowers experiencing financial difficulty by class for the six months ended September 30, 2023 and 2024: Six months ended September 30, 2023 (As Adjusted): Loan Modifications Made to Borrowers Experiencing Financial Difficulty Loans Modified within 12 months of Subsequent Default Amortized Cost Basis at the Period End Percentage of Total Class of Loans Amortized Cost Basis at the Period End (in millions, except percentages) Commercial (1) Domestic Interest rate reduction ¥ 2,909 0.01 % ¥ — Term extension 146,968 0.27 2,676 Combination of interest rate reduction and term extension 4,774 0.01 — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Foreign Interest rate reduction ¥ — — % ¥ — Term extension 101,054 0.22 — Combination of interest rate reduction and term extension — — — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Residential (1) Interest rate reduction ¥ — — % ¥ — Term extension 8,491 0.07 60 Combination of interest rate reduction and term extension — — — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Card (2) Interest rate reduction ¥ — — % ¥ — Term extension — — — Combination of interest rate reduction and term extension 12,480 2.61 1,472 Combination of term extension and principal forgiveness 121 0.03 1 All other modifications and combinations — — — Krungsri (2) Interest rate reduction ¥ 329 0.00 % ¥ 52 Term extension 174,300 1.99 3,095 Combination of interest rate reduction and term extension 992 0.01 85 Combination of term extension and principal forgiveness 261 0.00 4,072 All other modifications and combinations 919 0.01 48 Other (2) Interest rate reduction ¥ 250 0.01 % ¥ 185 Term extension 1,569 0.09 290 Combination of interest rate reduction and term extension 149 0.01 — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Six months ended September 30, 2024: Loan Modifications Made to Borrowers Experiencing Financial Difficulty Loans Modified within 12 months of Subsequent Default Amortized Cost Basis at the Period End Percentage of Total Class of Loans Amortized Cost Basis at the Period End (in millions, except percentages) Commercial (1) Domestic Interest rate reduction ¥ 530 0.00 % ¥ — Term extension 162,309 0.26 3,216 Combination of interest rate reduction and term extension 3,864 0.01 — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Foreign Interest rate reduction ¥ — — % ¥ — Term extension 74,732 0.17 — Combination of interest rate reduction and term extension — — — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Residential (1) Interest rate reduction ¥ — — % ¥ — Term extension 6,137 0.05 180 Combination of interest rate reduction and term extension — — — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Card (2) Interest rate reduction ¥ — — % ¥ — Term extension — — — Combination of interest rate reduction and term extension 12,828 2.65 1,541 Combination of term extension and principal forgiveness 126 0.03 2 All other modifications and combinations — — — Krungsri (2) Interest rate reduction ¥ 466 0.01 % ¥ 4 Term extension 143,449 1.59 4,495 Combination of interest rate reduction and term extension 2,613 0.03 105 Combination of term extension and principal forgiveness 1,558 0.02 40 All other modifications and combinations 867 0.01 2 Other (2) Interest rate reduction ¥ 831 0.04 % ¥ — Term extension 6,626 0.33 1,121 Combination of interest rate reduction and term extension — — 4 Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Notes: (1) The modified loans for the Commercial and Residential segments include accruing loans, and do not include nonaccrual loans. (2) The modified loans for the Card, Krungsri and Other segments include accrual and nonaccrual loans. Loan modifications made to borrowers experiencing financial difficulty for the Commercial and Residential segments in the above tables include accruing loans, and do not include nonaccrual loans. Once a loan is classified as a nonaccrual loan, a modification would have little likelihood of resulting in the recovery of the loan in view of the severity of the financial difficulty of the borrower. Therefore, even if a nonaccrual loan is modified, the loan continues to be classified as a nonaccrual loan. The vast majority of modifications to nonaccrual loans are temporary extensions of the maturity dates, typically for periods up to 90 days, and continually made as the borrower is unable to repay or refinance the loan at the extended maturity. Accordingly, the impact of such loans on the period-ended amortized cost basis is immaterial, and the vast majority of nonaccrual modified loans have subsequently defaulted. Loans that had a payment default during the period and had been modified to borrowers experiencing financial difficulty at the time of the modification within the previous 12 months preceding the payment default in the Commercial and Residential segments in the above tables include those accruing loans that became past due one month or more within the Commercial segment and six months or more within the Residential segment, and those accruing loans reclassified to nonaccrual loans due to financial difficulties even without delinquencies. This is because classification as a nonaccrual loan is regarded as default under the MUFG Group’s credit policy. Additionally, the MUFG Group defines default as payment default for the purpose of the disclosure. In regards to the Card, Krungsri and Other segments, loan modifications made to borrowers experiencing financial difficulty in the above tables represent nonaccrual and accruing loans, and the defaulted loans in the above table represent nonaccrual and accruing loans that became past due one month or more within the Card segment, and six months or more within the Krungsri segment. Historical payment defaults are one of the factors considered when determining the allowance for credit losses, and are factored into projecting future cash flows for segments other than the Card segment, for which such default information is considered when using collectively-assessed allowance methodology. The following table provides the financial effect of the modifications made to borrowers experiencing financial difficulty by class for the six months ended September 30, 2023 and 2024: Six months ended September 30, 2023 Financial Effect Commercial Domestic Interest rate reduction Reduced weighted-average contractual interest rate by 0.06%. Term extension Added a weighted-average 0.8 years to the life of loans. Foreign Term extension Added a weighted-average 0.5 years to the life of loans. Residential Term extension Added a weighted-average 1.3 years to the life of loans. Card Interest rate reduction Reduced weighted-average contractual interest rate by 15.24%. Term extension Added a weighted-average 3.0 years to the life of loans. Principal forgiveness Reduced the principal balance of the loans by ¥404 million. Krungsri Interest rate reduction Reduced weighted-average contractual interest rate by 1.29%. Term extension Added a weighted-average 1.7 years to the life of loans. Principal forgiveness Reduced the principal balance of the loans by ¥563 million. Other Interest rate reduction Reduced weighted-average contractual interest rate by 3.40%. Term extension Added a weighted-average 3.0 years to the life of loans. Six months ended September 30, 2024: Financial Effect Commercial Domestic Interest rate reduction Reduced weighted-average contractual interest rate by 0.16%. Term extension Added a weighted-average 0.8 years to the life of loans. Foreign Term extension Added a weighted-average 0.6 years to the life of loans. Residential Term extension Added a weighted-average 1.2 years to the life of loans. Card Interest rate reduction Reduced weighted-average contractual interest rate by 15.22%. Term extension Added a weighted-average 3.0 years to the life of loans. Principal forgiveness Reduced the principal balance of the loans by ¥431 million. Krungsri Interest rate reduction Reduced weighted-average contractual interest rate by 1.79%. Term extension Added a weighted-average 3.6 years to the life of loans. Principal forgiveness Reduced the principal balance of the loans by ¥658 million. Other Interest rate reduction Reduced weighted-average contractual interest rate by 8.30%. Term extension Added a weighted-average 1.0 year to the life of loans. The following table provides the performance of loans that have been modified in the last 12 months to borrowers experiencing financial difficulty by class for the six months ended September 30, 2023 and 2024: Six months ended September 30, 2023 (As Adjusted): Payment Status (Amortized Cost Basis at the Period End) Current 1-3 months Past Due Greater Than 3 months Past Due (in millions) Commercial (1) Domestic ¥ 266,915 ¥ 305 ¥ 470 Foreign 108,618 — — Residential (1) 16,094 948 214 Card (2) 16,816 4,270 1,973 Krungsri (2) 283,343 14,007 11,654 Other (2) 4,068 591 188 Total ¥ 695,854 ¥ 20,121 ¥ 14,499 Six months ended September 30, 2024: Payment Status (Amortized Cost Basis at the Period End) Current 1-3 months Past Due Greater Than 3 months Past Due (in millions) Commercial (1) Domestic ¥ 324,632 ¥ 100 ¥ 62 Foreign 90,234 — — Residential (1) 11,403 603 121 Card (2) 18,127 4,034 2,005 Krungsri (2) 215,377 25,118 25,376 Other (2) 7,371 3,414 1,039 Total ¥ 667,144 ¥ 33,269 ¥ 28,603 Notes: (1) The modified loans for the Commercial and Residential segments include accruing loans, and do not include nonaccrual loans. (2) The modified loans for the Card, Krungsri and Other segments include accrual and nonaccrual loans. Credit Quality Indicator Credit quality indicators of loans and fiscal year of origination by class at March 31, 2024, and gross charge-offs for the fiscal year ended March 31, 2024 are shown below: Term Loans Revolving Revolving Total (1) At March 31, 2024 2023 2022 2021 2020 2019 Prior (in millions) Commercial: ¥ 36,089,439 ¥ 13,326,456 ¥ 7,110,866 ¥ 5,965,489 ¥ 4,197,181 ¥ 9,777,389 ¥ 27,367,612 ¥ 63,489 ¥ 103,897,921 Domestic 20,392,832 7,709,706 4,897,276 5,099,173 3,195,961 7,915,170 8,175,676 — 57,385,794 Normal 20,168,687 7,567,872 4,700,171 4,955,680 3,058,292 7,289,232 7,918,471 — 55,658,405 Close Watch 212,521 132,768 182,359 120,759 91,961 524,833 242,574 — 1,507,775 Likely to become Bankrupt or Legally/Virtually Bankrupt 11,624 9,066 14,746 22,734 45,708 101,105 14,631 — 219,614 Gross charge-offs 2,478 26,192 1,379 2,669 9,904 8 — — 42,630 Foreign 15,696,607 5,616,750 2,213,590 866,316 1,001,220 1,862,219 19,191,936 63,489 46,512,127 Normal 15,305,350 5,445,830 2,166,976 827,405 877,978 1,680,485 18,889,310 60,877 45,254,211 Close Watch 330,450 142,807 41,638 23,625 110,527 129,927 269,944 — 1,048,918 Likely to become Bankrupt or Legally/Virtually Bankrupt 60,807 28,113 4,976 15,286 12,715 51,807 32,682 2,612 208,998 Gross charge-offs 9,301 8,575 1,057 794 174 130 10,131 — 30,162 Residential ¥ 668,170 ¥ 659,156 ¥ 714,292 ¥ 573,679 ¥ 864,058 ¥ 8,997,473 ¥ 20,550 ¥ — ¥ 12,497,378 Accrual 668,118 658,831 714,154 573,444 863,432 8,959,995 18,891 — 12,456,865 Nonaccrual 52 325 138 235 626 37,478 1,659 — 40,513 Gross charge-offs — — 2 6 28 1,253 — — 1,289 Card ¥ 21 ¥ 181 ¥ 224 ¥ 269 ¥ 207 ¥ 638 ¥ 409,416 ¥ 73,894 ¥ 484,850 Accrual — 10 7 7 9 34 396,746 15,483 412,296 Nonaccrual 21 171 217 262 198 604 12,670 58,411 72,554 Gross charge-offs 18 63 100 112 97 117 9,712 10,801 21,020 Krungsri ¥ 2,133,219 ¥ 1,481,834 ¥ 811,883 ¥ 401,052 ¥ 431,766 ¥ 768,770 ¥ 2,741,676 ¥ 16,982 ¥ 8,787,182 Performing 1,986,177 1,319,372 685,123 337,985 330,511 578,608 2,578,069 — 7,815,845 Under-Performing 110,487 108,846 86,273 49,140 80,033 141,150 136,897 — 712,826 Non-Performing 36,555 53,616 40,487 13,927 21,222 49,012 26,710 16,982 258,511 Gross charge-offs 8,765 55,828 34,544 12,995 15,439 19,729 30,709 2,632 180,641 Other ¥ 749,054 ¥ 296,723 ¥ 94,173 ¥ 45,408 ¥ 26,103 ¥ 87,724 ¥ 458,982 ¥ — ¥ 1,758,167 Accrual 743,600 291,516 92,176 44,523 24,642 82,574 445,355 — 1,724,386 Nonaccrual 5,454 5,207 1,997 885 1,461 5,150 13,627 — 33,781 Gross charge-offs 4,815 15,962 6,212 1,810 785 3,036 6,013 — 38,633 Credit quality indicators of loans and fiscal year of origination by class at September 30, 2024, and gross charge-offs for the six months ended September 30, 2024 are shown below: Term Loans Revolving Revolving Total (1) At September 30, 2024: 2024 2023 2022 2021 2020 Prior (in millions) Commercial: ¥ 26,191,966 ¥ 18,731,354 ¥ 11,345,368 ¥ 5,779,064 ¥ 5,072,732 ¥ 11,714,913 ¥ 26,980,476 ¥ 64,026 ¥ 105,879,899 Domestic 19,422,041 8,755,355 6,865,865 4,297,863 4,468,287 9,564,233 8,667,682 — 62,041,326 Normal 19,317,740 8,574,120 6,726,304 4,093,158 4,313,060 8,887,916 8,447,688 — 60,359,986 Close Watch 65,061 174,201 107,633 191,545 134,305 564,721 208,663 — 1,446,129 Likely to become Bankrupt or Legally/Virtually Bankrupt 39,240 7,034 31,928 13,160 20,922 111,596 11,331 — 235,211 Gross charge-offs 862 2,055 589 332 191 1,780 211 — 6,020 Foreign 6,769,925 9,975,999 4,479,503 1,481,201 604,445 2,150,680 18,312,794 64,026 43,838,573 Normal 6,690,117 9,654,989 4,297,828 1,447,782 579,913 1,904,520 17,985,700 61,854 42,622,703 Close Watch 59,543 216,179 153,292 33,419 13,820 190,536 306,324 — 973,113 Likely to become Bankrupt or Legally/Virtually Bankrupt 20,265 104,831 28,383 — 10,712 55,624 20,770 2,172 242,757 Gross charge-offs 84 255 1,632 2,507 — — 7,687 — 12,165 Residential ¥ 474,295 ¥ 651,183 ¥ 640,862 ¥ 692,280 ¥ 554,851 ¥ 9,388,304 ¥ 19,262 ¥ — ¥ 12,421,037 Accrual 474,221 651,131 640,544 692,025 554,606 9,352,910 17,847 — 12,383,284 Nonaccrual 74 52 318 255 245 35,394 1,415 — 37,753 Gross charge-offs — — 5 32 — 38 — — 75 Card ¥ — ¥ 82 ¥ 208 ¥ 296 ¥ 270 ¥ 749 ¥ 406,304 ¥ 76,970 ¥ 484,879 Accrual — 3 5 9 8 35 393,880 16,300 410,240 Nonaccrual — 79 203 287 262 714 12,424 60,670 74,639 Gross charge-offs — 28 85 56 81 116 4,855 6,063 11,284 Krungsri ¥ 928,828 ¥ 1,836,210 ¥ 1,249,486 ¥ 698,095 ¥ 302,590 ¥ 1,072,009 ¥ 2,895,885 ¥ 21,344 ¥ 9,004,447 Performing 844,687 1,631,629 1,084,838 577,836 243,477 780,640 2,673,984 7 7,837,098 Under-Performing 74,026 143,796 114,958 80,762 44,511 215,623 180,054 — 853,730 Non-Performing 10,115 60,785 49,690 39,497 14,602 75,746 41,847 21,337 313,619 Gross charge-offs 316 19,866 32,303 13,408 4,227 12,068 15,920 2,922 101,030 Other ¥ 498,369 ¥ 517,076 ¥ 255,062 ¥ 70,049 ¥ 42,070 ¥ 108,806 ¥ 500,667 ¥ — ¥ 1,992,099 Accrual 497,934 506,826 250,915 68,607 41,119 101,731 487,523 — 1,954,655 Nonaccrual 435 10,250 4,147 1,442 951 7,075 13,144 — 37,444 Gross charge-offs 659 14,191 6,386 1,898 215 1,303 3,151 — 27,803 Note: (1) Total loans in the above table do not include loans held for sale, and represent balances without adjustments in relation to unearned income, unamortized premiums and deferred loan fees. For a discussion and explanation of the MUFG Group’s credit quality indicator, see Note 4 to the consolidated financial statements for the fiscal year ended March 31, 2024. For the Commercial, Residential, Card and Krungsri segments, credit quality indicators at March 31, 2024 and September 30, 2024 are based on information as of March 31, 2024 and September 30, 2024, respectively. For the Other segment, credit quality indicators at March 31, 2024 and September 30, 2024 are generally based on information as of December 31, 2023 and June 30, 2024, respectively. Allowance for Credit Losses Effective as of April 1, 2023, the MUFG Group adopted new guidance on measurement of credit losses on financial instruments for loan modifications made to borrowers experiencing financial difficulty. Under the new guidance, the MUFG Group adopts a discounted cash flow methodology that utilizes a discount rate based on the post-modification contractual interest rate, other than those in the Card segment, for which the allowance is measured using collectively-assessed allowance methodology. Changes in the allowance for credit losses of loans by portfolio segment for the six months ended September 30, 2023 and 2024 are shown below: Six months ended September 30, 2023 Commercial Residential Card Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 719,589 ¥ 59,747 ¥ 42,469 ¥ 364,647 ¥ 93,062 ¥ 1,279,514 Provision for (reversal of) credit losses (17,974) 433 10,255 57,443 21,755 71,912 Charge-offs 36,943 459 10,158 69,152 15,929 132,641 Recoveries collected 9,720 2 393 15,931 8,491 34,537 Net charge-offs 27,223 457 9,765 53,221 7,438 98,104 Other (1)(2) 1,580 — (7,666) 38,096 11,159 43,169 Balance at end of period ¥ 675,972 ¥ 59,723 ¥ 35,293 ¥ 406,965 ¥ 118,538 ¥ 1,296,491 Six months ended September 30, 2024: Commercial Residential Card Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 745,514 ¥ 56,964 ¥ 36,423 ¥ 405,211 ¥ 112,849 ¥ 1,356,961 Provision for (reversal of) credit losses 14,650 (2,408) 13,895 76,414 26,033 128,584 Charge-offs 18,185 75 11,284 101,030 27,803 158,377 Recoveries collected 5,759 5 512 18,452 6,967 31,695 Net charge-offs 12,426 70 10,772 82,578 20,836 126,682 Other (1) (16,651) — — 19,772 8,820 11,941 Balance at end of period ¥ 731,087 ¥ 54,486 ¥ 39,546 ¥ 418,819 ¥ 126,866 ¥ 1,370,804 Notes: (1) Other is principally comprised of gains or losses from foreign exchange translation. (2) For the six months ended September 30, 2023, Other includes the impact of the change in accounting principle relating to the recognition and measurement of troubled debt restructurings, which was adopted on April 1, 2023. The total impact across all segments was negative of ¥18,869 million. The MUFG Group sold ¥1,206 billion and ¥1,761 billion of loans within the Commercial segment during the six months ended September 30, 2023 and 2024, respectively. Collateral Dependent Loans The MUFG Group uses, as a practical expedient, the fair value of the collateral when recording the net carrying amounts of loans and determining the allowance for credit losses of such loans, for which the repayment is expected to be provided substantially through the operation or sale of the collateral, when the borrower is experiencing financial difficulty based on the assessment as of the reporting date. For the Commercial, Krungsri and Other segments, collateral relating to these loans was comprised primarily of real estate, and to a lesser extent, exchange traded equity securities and deposits, etc. For the Residential segment, collateral on these loans was mainly real estate. Other Financial Receivable Accounts receivable-Other, which is included in Other assets in the accompanying condensed consolidated balance sheets, amounted to ¥1,951,742 million and ¥1,919,320 million as of March 31, 2024 and September 30, 2024, respectively, and were primarily comprised of receivables relating to the credit card business. The provision or reversal of the allowance for credit losses relating to the receivables was included in Non-interest expense on the condensed consolidated statements of income. The credit quality for these receivables is primarily evaluated based on the extent of delinquency. The outstanding balance of these account receivables are presented on a net basis after allowance for credit losses. The change of allowance for credit losses during the six months ended September 30, 2023 and 2024 is primarily due to provision or reversal of the allowance for the receivables. There are de minimis or zero expected credit losses, for example, for lending and financing transactions, such as Interest-earning deposits in other banks, Call loans and funds sold, Receivables under resale agreements and Receivables under securities borrowing transactions because the term is short and the credit quality of the borrowers is normal. Accrued interest receivable totaled ¥737,947 million and ¥694,666 million as of March 31, 2024 and September 30, 2024, respectively, and is included in Other assets on the condensed consolidated balance sheets.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill The table below presents the movement in the carrying amount of goodwill during the six months ended September 30, 2023 and 2024: Six months ended 2023 2024 (in millions) Balance at beginning of period Goodwill (1) ¥ 889,524 ¥ 1,086,510 Accumulated impairment losses (1) (592,752) (592,752) 296,772 493,758 Goodwill acquired during the six months 67,227 151,774 (2) Foreign currency translation adjustments and other 23,104 30,849 Balance at end of period Goodwill 979,855 1,269,133 Accumulated impairment losses (592,752) (592,752) ¥ 387,103 ¥ 676,381 Notes: (1) Goodwill originally recognized of ¥1,900,019 million, which has been fully impaired before April 1, 2023, is not included in the table above. (2) Goodwill acquired during the six months ended September 30, 2024, relates to the acquisition of business in the Asset Management & Investor Services Business Group, including the acquisition of MPMS (See Note 2). Other Intangible Assets The table below presents the net carrying amount by major class of other intangible assets at March 31, 2024 and September 30, 2024: March 31, September 30, (in millions) Intangible assets subject to amortization: Software ¥ 927,893 ¥ 982,042 Customer relationships 265,082 318,264 Core deposit intangibles 43,741 41,614 Trade names 38,621 38,935 Other 14,245 14,404 Total 1,289,582 1,395,259 Intangible assets not subject to amortization: Other 8,178 7,898 Total ¥ 1,297,760 ¥ 1,403,157

Lease Transactions

Lease Transactions	6 Months Ended
	Sep. 30, 2024
Leases [Abstract]
Lease Transactions	LEASE TRANSACTIONS Lease transactions as a lessor As part of its financing activities, the MUFG Group enters into leasing arrangements with customers. The MUFG Group’s leasing operations are conducted through leasing subsidiaries and consist principally of various types of data processing equipment, office equipment and transportation equipment. Sales type and direct financing leases are presented in loans. In certain cases, the MUFG Group requests lessees to deposit an amount nearly, or equal to, the residual value of leased assets. The following table presents profit or loss of lease transactions as a lessor for the six months ended September 30, 2023 and September 30, 2024: September 30, September 30, (in millions) Sales type and direct financing leases: Finance income on net investment ¥ 70,426 ¥ 73,163 Operating leases: Lease income 3,938 5,085 Total ¥ 74,364 ¥ 78,248 Finance income on net investment is included in Interest income—Loans, including fees in the condensed consolidated statements of income. Lease income from operating lease transactions is included in Other non-interest income in the condensed consolidated statements of income.

Pledged Assets and Collateral

Pledged Assets and Collateral	6 Months Ended
	Sep. 30, 2024
Financial Instruments Pledged as Collateral [Abstract]
Pledged Assets and Collateral	PLEDGED ASSETS AND COLLATERAL At September 30, 2024, assets mortgaged, pledged, or otherwise subject to lien were as follows: September 30, 2024 (in millions) Trading account securities ¥ 10,245,563 Investment securities 13,369,390 Loans 18,334,549 Other 27,678 Total ¥ 41,977,180 The above pledged assets were classified by type of liabilities to which they related as follows: September 30, 2024 (in millions) Deposits ¥ 15,226 Payables under repurchase agreements and securities lending transactions 20,207,187 Other short-term borrowings and long-term debt 21,700,084 Other 54,683 Total ¥ 41,977,180 At September 30, 2024, certain investment securities, principally Japanese national government and Japanese government agency bonds, loans and other assets with a combined carrying value of ¥21,928,287 million were pledged for acting as a collection agent of public funds, for settlement of exchange at the Bank of Japan and Japanese Banks’ Payment Clearing Network, for derivative transactions and for certain other purposes. The MUFG Group engages in on-balance sheet securitizations. These securitizations of mortgage and apartment loans, which do not qualify for sales treatment, are accounted for as secured borrowings. The amount of loans in the table above represents the carrying amount of these transactions with the carrying amount of the associated liabilities included in Other short-term borrowings and Long-term debt. At March 31, 2024 (As Adjusted) and September 30, 2024, the cash collateral pledged for derivative transactions, which is included in Other assets, was ¥3,182,590 million and ¥2,600,708 million, respectively, and the cash collateral received for derivative transactions, which is included in Other liabilities, was ¥1,404,066 million and ¥1,346,651 million, respectively.

Severance Indemnities and Pensi

Severance Indemnities and Pension Plans	6 Months Ended
	Sep. 30, 2024
Retirement Benefits [Abstract]
Severance Indemnities and Pension Plans	SEVERANCE INDEMNITIES AND PENSION PLANS The following table summarizes the components of net periodic benefit costs of pension benefits, severance indemnities plans (“SIPs”) and other benefits for the six months ended September 30, 2023 and 2024: Six months ended September 30, Domestic subsidiaries Foreign offices and subsidiaries 2023 2024 2023 2024 Pension benefits and SIPs Pension benefits and SIPs Pension benefits （As Adjusted） Other benefits Pension benefits Other benefits (in millions) Service cost—benefits earned during the period ¥ 17,788 ¥ 16,104 ¥ 6,191 ¥ 30 ¥ 7,731 ¥ 47 Interest cost on projected benefit obligation 10,288 12,041 4,367 594 4,423 643 Expected return on plan assets (41,218) (48,224) (5,574) (732) (6,202) (835) Amortization of net actuarial loss (gain) 925 (9,002) 837 584 276 61 Amortization of prior service cost (973) (355) (430) (208) (416) (225) Loss (gain) on settlements and curtailment (6,393) (7,683) 974 — — — Other — (110) — — (956) (301) Net periodic benefit cost (income) ¥ (19,583) ¥ (37,229) ¥ 6,365 ¥ 268 ¥ 4,856 ¥ (610)

Offsetting of Derivatives, Repu

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions	6 Months Ended
	Sep. 30, 2024
Offsetting [Abstract]
Offsetting of Derivatives Repurchase Agreements and Securities Lending Disclosure	OFFSETTING OF DERIVATIVES, REPURCHASE AGREEMENTS, AND SECURITIES LENDING TRANSACTIONS The following tables present, as of March 31, 2024 and September 30, 2024, the gross and net amounts of the derivatives, resale and repurchase agreements, and securities borrowing and lending transactions, including the related gross amounts subject to an enforceable master netting arrangement or similar agreement not offset in the condensed consolidated balance sheets. The MUFG Group primarily enters into International Swaps and Derivatives Association master netting agreements, master repurchase agreements and master securities lending agreements or similar agreements for derivative contracts, resale and repurchase agreements, and securities borrowing and lending transactions. In the event of default on or termination of any one contract, these agreements provide the contracting parties with the right to net a counterparty’s rights and obligations and to liquidate and set off collateral against any net amount owed by the counterparty. Generally, as the MUFG Group has elected to present such amounts on a gross basis, the amounts subject to these agreements are included in “Gross amounts not offset in the condensed consolidated balance sheet” column in the tabular disclosure below. 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 condensed consolidated balance sheet” column in the tabular disclosure below. Gross Gross amounts offset in the condensed consolidated balance sheet Net amounts presented in the condensed consolidated balance sheet Gross amounts not offset in the condensed consolidated balance sheet Net amounts At March 31, 2024 (As Adjusted): 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 agreements 20,906 (2,082) 18,824 (17,532) (9) 1,283 Receivables under securities borrowing transactions 5,076 (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 agreements 37,771 (2,081) 35,690 (34,188) (82) 1,420 Payables under securities lending transactions 1,092 (75) 1,017 (992) (10) 15 Obligations to return securities received as collateral 7,223 — 7,223 (1,766) — 5,457 Total ¥ 62,446 ¥ (2,156) ¥ 60,290 ¥ (48,571) ¥ (2,246) ¥ 9,473 Gross Gross amounts offset in the condensed consolidated balance sheet Net amounts presented in the condensed consolidated balance sheet Gross amounts not offset in the condensed consolidated balance sheet Net amounts At September 30, 2024: Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 16,382 ¥ — ¥ 16,382 ¥ (12,964) ¥ (1,018) ¥ 2,400 Receivables under resale agreements 20,981 (2,567) 18,414 (17,382) (10) 1,022 Receivables under securities borrowing transactions 5,553 (18) 5,535 (5,048) — 487 Total ¥ 42,916 ¥ (2,585) ¥ 40,331 ¥ (35,394) ¥ (1,028) ¥ 3,909 Financial liabilities: Derivative liabilities ¥ 16,637 ¥ — ¥ 16,637 ¥ (12,616) ¥ (1,361) ¥ 2,660 Payables under repurchase agreements 40,289 (2,565) 37,724 (35,949) (64) 1,711 Payables under securities lending transactions 662 (18) 644 (626) (3) 15 Obligations to return securities received as collateral 6,335 — 6,335 (1,342) — 4,993 Total ¥ 63,923 ¥ (2,583) ¥ 61,340 ¥ (50,533) ¥ (1,428) ¥ 9,379

Repurchase Agreements and Secur

Repurchase Agreements and Securities Lending Transactions Accounted for as Secured Borrowings	6 Months Ended
	Sep. 30, 2024
Disclosure of Repurchase Agreements [Abstract]
Repurchase Agreements and Securities Lending Transactions Accounted for as Secured Borrowings	REPURCHASE AGREEMENTS AND SECURITIES LENDING TRANSACTIONS ACCOUNTED FOR AS SECURED BORROWINGS The following tables present gross obligations for payables under repurchase agreements, payables under securities lending transactions and obligations to return securities received as collateral by remaining contractual maturity and class of collateral pledged at March 31, 2024 and September 30, 2024. Potential risks associated with these arrangements primarily relate to market and liquidity risks. To manage risks associated with market exposure, the MUFG Group generally revalues the collateral underlying its repurchase agreements and securities lending transactions on a daily basis and monitors the value of the underlying securities, consisting of primarily high-quality securities such as Japanese national government and Japanese government agency bonds, and foreign government and official institution bonds. In the event the market value of such securities falls below the related agreements at contract amounts plus accrued interest, the MUFG Group may be required to deposit additional collateral when appropriate. To address liquidity risks, the MUFG Group conducts stress tests to ensure the adequate level of liquidity is maintained in the event of a decline in the fair value of any collateral pledged. March 31, 2024 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 8,846 ¥ 20,010 ¥ 7,209 ¥ 1,706 ¥ 37,771 Payables under securities lending transactions 1,015 1 — 76 1,092 Obligations to return securities received as collateral 6,076 610 135 402 7,223 Total ¥ 15,937 ¥ 20,621 ¥ 7,344 ¥ 2,184 ¥ 46,086 September 30, 2024 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 14,561 ¥ 18,317 ¥ 3,370 ¥ 4,041 ¥ 40,289 Payables under securities lending transactions 644 — — 18 662 Obligations to return securities received as collateral 5,869 85 98 283 6,335 Total ¥ 21,074 ¥ 18,402 ¥ 3,468 ¥ 4,342 ¥ 47,286 Secured borrowing by the class of collateral pledged at March 31, 2024 and September 30, 2024 was as follows: March 31, 2024 Payables under repurchase agreements Payables under securities lending transactions Obligations to return securities received as collateral Total (in billions) Japanese national government and Japanese government agency bonds ¥ 13,001 ¥ 359 ¥ 4,229 ¥ 17,589 Foreign government and official institution bonds 14,172 — 1,033 15,205 Corporate bonds 773 76 400 1,249 Residential mortgage-backed securities 8,819 — — 8,819 Other debt securities 346 — 38 384 Marketable equity securities 636 657 1,523 2,816 Other 24 — — 24 Total ¥ 37,771 ¥ 1,092 ¥ 7,223 ¥ 46,086 September 30, 2024 Payables under repurchase agreements Payables under securities lending transactions Obligations to return securities received as collateral Total (in billions) Japanese national government and Japanese government agency bonds ¥ 12,783 ¥ 162 ¥ 3,404 ¥ 16,349 Foreign government and official institution bonds 19,866 36 1,353 21,255 Corporate bonds 978 — 352 1,330 Residential mortgage-backed securities 5,212 — — 5,212 Other debt securities 212 — 24 236 Marketable equity securities 756 464 1,202 2,422 Other 482 — — 482 Total ¥ 40,289 ¥ 662 ¥ 6,335 ¥ 47,286

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Sep. 30, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss)	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following table presents the changes in Accumulated other comprehensive income (“Accumulated OCI”), net of tax and net of noncontrolling interests, for the six months ended September 30, 2023 and 2024: Six months ended 2023 2024 (in millions) Accumulated other comprehensive income, net of taxes: Net unrealized losses on investment securities: Balance at beginning of period ¥ (883,931) ¥ (826,271) Net change during the period (158,006) 41,091 Balance at end of period ¥ (1,041,937) ¥ (785,180) Net debt valuation adjustments: Balance at beginning of period ¥ 3,268 ¥ (41,382) Net change during the period (22,260) 3,051 Balance at end of period ¥ (18,992) ¥ (38,331) Net unrealized gains on derivatives qualifying for cash flow hedges: Balance at beginning of period ¥ 551 ¥ 63 Net change during the period 1,078 178 Balance at end of period ¥ 1,629 ¥ 241 Defined benefit plans: Balance at beginning of period ¥ 8,350 ¥ 389,392 Net change during the period 48,942 (23,831) Balance at end of period ¥ 57,292 ¥ 365,561 Foreign currency translation adjustments: Balance at beginning of period ¥ 1,742,816 ¥ 2,715,823 Net change during the period 951,063 222,763 Balance at end of period ¥ 2,693,879 ¥ 2,938,586 Balance at end of period ¥ 1,691,871 ¥ 2,480,877 The following table presents the before tax and net of tax changes in each component of Accumulated OCI for the six months ended September 30, 2023 and 2024: Six months ended September 30, 2023 2024 Before tax Tax (expense) or benefit Net of tax Before tax Tax (expense) or benefit Net of tax (in millions) Net unrealized gains (losses) on investment securities: Net unrealized gains (losses) on investment securities ¥ (148,170) ¥ 23,379 ¥ (124,791) ¥ 58,792 ¥ 13,182 ¥ 71,974 Reclassification adjustment for losses (gains) included in net income before attribution of noncontrolling interests (51,965) 14,020 (37,945) 10,142 (3,467) 6,675 Net change (200,135) 37,399 (162,736) 68,934 9,715 78,649 Net unrealized gains (losses) on investment securities attributable to noncontrolling interests (4,730) 37,558 Net unrealized gains (losses) on investment securities attributable to Mitsubishi UFJ Financial Group (158,006) 41,091 Net debt valuation adjustments: Net debt valuation adjustments (32,387) 9,917 (22,470) 3,950 (1,210) 2,740 Reclassification adjustment for losses included in net income before attribution of noncontrolling interests 302 (92) 210 448 (137) 311 Net change (32,085) 9,825 (22,260) 4,398 (1,347) 3,051 Net debt valuation adjustments attributable to noncontrolling interests — — Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group (22,260) 3,051 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Net unrealized gains (losses) on derivatives qualifying for cash flow hedges 8,324 (1,674) 6,650 (8,998) 1,796 (7,202) Reclassification adjustment for losses (gains) included in net income before attribution of noncontrolling interests (6,552) 1,306 (5,246) 9,292 (1,858) 7,434 Net change 1,772 (368) 1,404 294 (62) 232 Net unrealized gains on derivatives qualifying for cash flow hedges attributable to noncontrolling interests 326 54 Net unrealized gains on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group 1,078 178 Defined benefit plans: Defined benefit plans 75,061 (23,003) 52,058 (16,030) 3,867 (12,163) Reclassification adjustment for gains included in net income before attribution of noncontrolling interests (4,606) 1,532 (3,074) (17,210) 5,274 (11,936) Net change 70,455 (21,471) 48,984 (33,240) 9,141 (24,099) Defined benefit plans attributable to noncontrolling interests 42 (268) Defined benefit plans attributable to Mitsubishi UFJ Financial Group 48,942 (23,831) Foreign currency translation adjustments: Foreign currency translation adjustments 1,172,869 (146,399) 1,026,470 219,251 71,910 291,161 Reclassification adjustment for gains included in net income before attribution of noncontrolling interests (4,231) 1,296 (2,935) (6,824) 2,181 (4,643) Net change 1,168,638 (145,103) 1,023,535 212,427 74,091 286,518 Foreign currency translation adjustments attributable to noncontrolling interests 72,472 63,755 Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group 951,063 222,763 Other comprehensive income attributable to Mitsubishi UFJ Financial Group ¥ 820,817 ¥ 243,252 The following table presents the effect of the reclassification of significant items out of Accumulated OCI on the respective line items of the accompanying condensed consolidated statements of income for the six months ended September 30, 2023 and 2024: Six months ended 2023 2024 Details of Accumulated OCI components Amount reclassified out of Accumulated OCI Line items in the consolidated statements of income (in millions) Net unrealized losses (gains) on investment securities Net gains on sales and redemptions of Available-for-sale debt securities ¥ (52,655) ¥ (2,687) Investment securities gains (losses)—net Impairment losses on investment securities 2 12,798 Investment securities gains (losses)—net Other 688 31 (51,965) 10,142 Total before tax 14,020 (3,467) Income tax expense ¥ (37,945) ¥ 6,675 Net of tax Net debt valuation adjustments ¥ 302 ¥ 448 Equity in earnings of equity method investees—net 302 448 Total before tax (92) (137) Income tax expense ¥ 210 ¥ 311 Net of tax Net unrealized losses (gains) on derivatives qualifying for cash flow hedges Foreign exchange contracts (6,552) 9,292 Interest expense on Long-term debt or Foreign exchange gains (losses)—net (6,552) 9,292 Total before tax 1,306 (1,858) Income tax expense ¥ (5,246) ¥ 7,434 Net of tax Defined benefit plans Net actuarial loss (gain) (1) ¥ 2,346 ¥ (8,665) Other non-interest expenses Prior service cost (1) (1,610) (996) Other non-interest expenses Gain on settlements and curtailment, and other (1) (5,342) (7,549) Other non-interest expenses (4,606) (17,210) Total before tax 1,532 5,274 Income tax expense ¥ (3,074) ¥ (11,936) Net of tax Foreign currency translation adjustments ¥ (4,231) ¥ (6,824) Other non-interest income (4,231) (6,824) Total before tax 1,296 2,181 Income tax expense ¥ (2,935) ¥ (4,643) Net of tax Total reclassifications for the period ¥ (67,052) ¥ (4,152) Total before tax 18,062 1,993 Income tax expense ¥ (48,990) ¥ (2,159) Net of tax Note: (1) These Accumulated OCI components are components of net periodic benefit cost. See Note 8 for more information.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	DERIVATIVE FINANCIAL INSTRUMENTS The MUFG Group uses various derivative financial instruments both for trading purposes and for purposes other than trading (primarily risk management purposes) in the normal course of business to meet the financial needs of its customers, as a source of revenue and to manage its exposures to a variety of risks. See Note 23 to the consolidated financial statements for the fiscal year ended March 31, 2024 for a further discussion of the MUFG Group’s use of derivative instruments. During the six months ended September 30, 2024, there was no change in the MUFG Group’s use of derivative instruments that had a material impact on the MUFG Group’s financial position and results of operations. Notional Amounts of Derivative Contracts The following table summarizes the notional amounts of derivative contracts at March 31, 2024 and September 30, 2024: Notional amounts (1) March 31, September 30, 2024 (in trillions) Interest rate contracts ¥ 1,812.8 ¥ 2,010.0 Foreign exchange contracts 340.7 338.1 Equity contracts 5.0 5.0 Commodity contracts 0.2 0.2 Credit derivatives 5.3 5.6 Other 3.6 3.6 Total ¥ 2,167.6 ¥ 2,362.5 Note: (1) Includes both written and purchased positions. Impact of Derivatives on the Condensed Consolidated Balance Sheets The following table summarizes fair value information on derivative instruments that are recorded on the MUFG Group’s condensed consolidated balance sheets at March 31, 2024 and September 30, 2024: Fair value of derivative instruments March 31, 2024 (1)(5) (As Adjusted) September 30, 2024 (1)(5) Not designated as hedges (2) Designated as hedges (3) Total derivatives (4) Not designated as hedges (2) Designated as hedges (3) Total derivatives (4) (in billions) Derivative assets: Interest rate contracts ¥ 9,505 ¥ — ¥ 9,505 ¥ 10,410 ¥ — ¥ 10,410 Foreign exchange contracts 5,647 10 5,657 5,760 3 5,763 Equity contracts 123 — 123 103 — 103 Commodity contracts 19 — 19 20 — 20 Credit derivatives 47 — 47 59 — 59 Other (6) — — — 27 — 27 Total derivative assets ¥ 15,341 ¥ 10 ¥ 15,351 ¥ 16,379 ¥ 3 ¥ 16,382 Derivative liabilities: Interest rate contracts ¥ 10,696 ¥ — ¥ 10,696 ¥ 11,277 ¥ — ¥ 11,277 Foreign exchange contracts 5,536 — 5,536 5,278 4 5,282 Equity contracts 158 — 158 122 — 122 Commodity contracts 18 — 18 19 — 19 Credit derivatives 62 — 62 55 — 55 Other (6) (110) — (110) (118) — (118) Total derivative liabilities ¥ 16,360 ¥ — ¥ 16,360 ¥ 16,633 ¥ 4 ¥ 16,637 Notes: (1) The fair value of derivative instruments is presented on a gross basis even when derivative instruments are subject to master netting agreements. Cash collateral payable and receivable associated with derivative instruments are not added to or netted against the fair value amounts. (2) Except for the derivative instruments described in (6), the derivative instruments which are not designated as a hedging instrument are held for trading and risk management purposes and are presented in Trading account assets and liabilities. (3) The MUFG Group adopts hedging strategies and applies hedge accounting to certain derivative transactions entered into by certain subsidiaries. The derivative instruments which are designated as hedging instruments are presented in Other assets or Other liabilities on the accompanying condensed consolidated balance sheets. (4) This table does not include contracts with embedded derivatives for which the fair value option has been elected. (5) For more information about fair value measurement and assumptions used to measure the fair value of derivatives, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (6) Other mainly includes bifurcated embedded derivatives carried at fair value, which are presented in Loans, Deposits and Long-term debt. Impact of Derivatives on the Condensed Consolidated Statements of Income The following table provides more detailed information regarding the derivative-related impact on the accompanying condensed consolidated statements of income for the six months ended September 30, 2023 and 2024: Trading and risk management derivatives gains and losses (Not designated as hedging instruments) Foreign exchange gains (losses)—net Trading account profits (losses)—net Total (in billions) Six months ended September 30, 2023 (As Adjusted): Interest rate contracts ¥ — ¥ (223) ¥ (223) Foreign exchange contracts (380) — (380) Equity contracts — (268) (268) Credit derivatives — (20) (20) Other (1) (8) (32) (40) Total ¥ (388) ¥ (543) ¥ (931) Six months ended September 30, 2024: Interest rate contracts ¥ — ¥ (103) ¥ (103) Foreign exchange contracts 258 — 258 Equity contracts — 215 215 Credit derivatives — 2 2 Other (1) 23 (10) 13 Total ¥ 281 ¥ 104 ¥ 385 Note: (1) Other mainly includes bifurcated embedded derivatives carried at fair value, which are presented in Loans, Deposits and Long-term debt. Credit Derivatives The MUFG Group enters into credit derivatives to manage its credit risk exposure, to facilitate client transactions, and for proprietary trading purposes, under which they provide the counterparty protection against the risk of default on a set of debt obligations issued by a specified reference entity or entities. See Note 23 to the consolidated financial statements for the fiscal year ended March 31, 2024 for a more detailed explanation and discussion of credit derivatives. The table below summarizes certain information regarding protection sold through credit derivatives as of March 31, 2024 and September 30, 2024: Protection sold Maximum potential/Notional amount by expiration period Fair value At March 31, 2024: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 212,513 ¥ 736,935 ¥ 219,642 ¥ 1,169,090 ¥ (17,199) Non-investment grade 82,749 146,029 15,837 244,615 211 Total 295,262 882,964 235,479 1,413,705 (16,988) Index and basket credit default swaps : Investment grade (2) 73,300 681,443 10,202 764,945 (11,458) Non-investment grade — — — — — Not rated 2,836 24,623 3,404 30,863 (548) Total 76,136 706,066 13,606 795,808 (12,006) Total credit default swaps sold ¥ 371,398 ¥ 1,589,030 ¥ 249,085 ¥ 2,209,513 ¥ (28,994) Protection sold Maximum potential/Notional amount by expiration period Fair value At September 30, 2024: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 205,198 ¥ 776,859 ¥ 190,509 ¥ 1,172,566 ¥ (17,819) Non-investment grade 37,040 128,223 9,431 174,694 103 Total 242,238 905,082 199,940 1,347,260 (17,716) Index and basket credit default swaps : Investment grade (2) 42,300 769,496 9,864 821,660 (9,993) Non-investment grade — 57,092 — 57,092 (802) Not rated — 126,043 3,864 129,907 (2,553) Total 42,300 952,631 13,728 1,008,659 (13,348) Total credit default swaps sold ¥ 284,538 ¥ 1,857,713 ¥ 213,668 ¥ 2,355,919 ¥ (31,064) Notes: (1) Fair value amounts are shown on a gross basis prior to cash collateral or counterparty netting. (2) The MUFG Group considers ratings of Baa3/BBB- or higher to meet the definition of investment grade. The MUFG Group may economically hedge its exposure to credit derivatives by entering into offsetting derivative contracts. The carrying value and notional amounts of credit protection sold in which the MUFG Group held purchased protection with identical underlying referenced entities were approximately ¥25 billion and ¥1,920 billion, respectively, at March 31, 2024, and approximately ¥27 billion and ¥2,079 billion, respectively, at September 30, 2024. Collateral is held by the MUFG Group in relation to these instruments. Collateral requirements are determined at the counterparty level and cover numerous transactions and products as opposed to individual contracts. Credit Risk, Liquidity Risk and Credit-risk-related Contingent Features Certain derivative instruments held by the MUFG Group contain provisions that require the MUFG Group’s debt to maintain an investment grade credit rating from each of the major credit rating agencies. If the MUFG Group’s debt were to fall below investment grade, it would be in violation of these provisions, and the counterparties to the derivative instruments could request payments on early termination or demand immediate and ongoing full overnight collateralization on derivative instruments in net liability positions. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position at March 31, 2024 and September 30, 2024 was approximately ¥0.8 trillion and ¥0.7 trillion, respectively, for which the MUFG Group has posted collateral of approximately ¥274 billion and ¥221 billion, respectively, in the normal course of business. The amount of additional collateral and early termination amount which could be requested if the MUFG Group’s debt falls below investment grade was ¥67 billion and ¥129 billion, respectively, as of March 31, 2024 and ¥44 billion and ¥122 billion, respectively, as of September 30, 2024.

Obligations Under Guarantees an

Obligations Under Guarantees and Other Off-balance Sheet Instruments	6 Months Ended
	Sep. 30, 2024
Guarantee Obligations And Other Off Balance Sheet Instruments [Abstract]
Obligations Under Guarantees and Other Off-balance Sheet Instruments	OBLIGATIONS UNDER GUARANTEES AND OTHER OFF-BALANCE SHEET INSTRUMENTS Obligations under Guarantees The MUFG Group provides customers with a variety of guarantees and similar arrangements as described in Note 24 to the consolidated financial statements for the fiscal year ended March 31, 2024. The table below presents the contractual or notional amounts of such guarantees at March 31, 2024 and September 30, 2024: March 31, September 30, 2024 (As Adjusted) (in billions) Standby letters of credit and financial guarantees ¥ 5,320 ¥ 5,259 Performance guarantees 4,788 4,606 Derivative instruments (1)(2) 51,058 54,154 Liabilities of trust accounts 19,938 19,365 Other 40 25 Total ¥ 81,144 ¥ 83,409 Notes: (1) Credit derivatives sold by the MUFG Group are excluded from this presentation. (2) Derivative instruments that are deemed to be included within the definition of guarantees as prescribed in the guidance on guarantees include certain written options and credit default swaps. Performance Risk The MUFG Group monitors performance risk of its guarantees using the same credit rating system utilized for estimating probabilities of default with its loan portfolio. The MUFG Group’s credit rating system is consistent with both the method of evaluating credit risk under Basel III and those of third-party credit rating agencies. On certain underlying referenced credits or entities, ratings are not available. Such referenced credits are included in the “Not rated” category in the following tables. Presented in the tables below is the maximum potential amount of future payments classified based upon internal credit ratings as of March 31, 2024 and September 30, 2024. The determination of the maximum potential future payments is based on the notional amount of the guarantees without consideration of possible recoveries under recourse provisions or from collateral held or pledged. Such amounts do not represent the anticipated losses, if any, on these guarantees. At March 31, 2024: Maximum potential/ Contractual or Notional amount Amount by borrower grade Normal Close Watch (1) Likely to become Bankrupt or Legally/ Virtually Bankrupt (1) Not rated (As Adjusted) (in billions) Standby letters of credit and financial guarantees ¥ 5,320 ¥ 5,161 ¥ 123 ¥ 18 ¥ 18 Performance guarantees 4,788 4,685 45 29 29 Total ¥ 10,108 ¥ 9,846 ¥ 168 ¥ 47 ¥ 47 At September 30, 2024: Maximum potential/ Contractual or Notional amount Amount by borrower grade Normal Close Watch (1) Likely to become Bankrupt or Legally/ Virtually Bankrupt (1) Not rated (in billions) Standby letters of credit and financial guarantees ¥ 5,259 ¥ 5,121 ¥ 119 ¥ 12 ¥ 7 Performance guarantees 4,606 4,502 45 23 36 Total ¥ 9,865 ¥ 9,623 ¥ 164 ¥ 35 ¥ 43 Note: (1) See Notes of the tables regarding “the maximum potential amount of future payments classified based upon internal credit ratings” in Note 24 to the consolidated financial statements for the fiscal year ended March 31, 2024. The guarantees that the MUFG Group does not classify based upon internal credit ratings are described in Note 24 to the consolidated financial statements for the fiscal year ended March 31, 2024. Other Off-balance Sheet Instruments In addition to obligations under guarantees and similar arrangements set forth above, the MUFG Group issues other off-balance sheet instruments to meet the financial needs of its customers and for other purposes as described in Note 24 to the consolidated financial statements for the fiscal year ended March 31, 2024. The table below presents the contractual amounts with regard to such instruments at March 31, 2024 and September 30, 2024: March 31, September 30, 2024 (As Adjusted) (in billions) Commitments to extend credit ¥ 94,414 ¥ 94,819 Commercial letters of credit 974 861 Commitments to make investments 674 720

Contingent Liabilities

Contingent Liabilities	6 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities	CONTINGENT LIABILITIES Repayment of Excess Interest The MUFG Group maintains an allowance for repayment of excess interest based on an analysis of past experience of reimbursement of excess interest, borrowers’ profile, recent trend of borrowers’ claims for reimbursement, and management future forecasts. Management believes that the provision for repayment of excess interest is adequate and the allowance is at the appropriate amount to absorb probable losses, so that the impact of future claims for reimbursement of excess interest will not have a material adverse effect on the MUFG Group’s financial position and results of operations. The allowance for repayment of excess interest established by MUFG’s consumer finance subsidiaries, which was included in Other liabilities, was ¥7,073 million and ¥3,664 million as of March 31, 2024 and September 30, 2024, respectively. Provision (reversal) related to the allowance for the six months ended September 30, 2023 and 2024 were not material. Litigation In the ordinary course of business, the MUFG Group is subject to various litigation and regulatory matters. In accordance with applicable accounting guidance, the MUFG Group establishes an accrued liability for loss contingencies arising from litigation and regulatory matters when they are determined to be probable in their occurrence and the probable loss amount can be reasonably estimated. Based upon current knowledge and consultation with counsel, management believes the eventual outcome of such litigation and regulatory matters, where losses are probable and the probable loss amounts can be reasonably estimated, would not have a material adverse effect on the MUFG Group’s financial position, results of operations or cash flows. Additionally, management believes the amount of loss that is reasonably possible, but not probable, from various litigation and regulatory matters is not material to the MUFG Group’s financial position, results of operations or cash flows.

Variable Interest Entities

Variable Interest Entities	6 Months Ended
	Sep. 30, 2024
Variable Interest Entities [Abstract]
Variable Interest Entities	VARIABLE INTEREST ENTITIES In the normal course of business, the MUFG Group has financial interests and other contractual obligations in various entities which may be deemed to be VIEs such as asset-backed conduits, various investment funds, special purpose entities created for structured financing, repackaged instruments, entities created for the securitization of the MUFG Group’s assets, and trust arrangements. See Note 25 to the consolidated financial statements for the fiscal year ended March 31, 2024 for further information about the MUFG Group’s involvements with VIEs. The following tables present the assets and liabilities of consolidated VIEs recorded on the accompanying condensed consolidated balance sheets at March 31, 2024 and September 30, 2024: Consolidated VIEs Consolidated assets At March 31, 2024 (As Adjusted): Total Cash and due from banks Interest-earning deposits in other banks Trading account assets Investment securities Loans All other assets (in millions) Asset-backed conduits ¥ 8,186,919 ¥ 66,761 ¥ 33,826 ¥ 45,689 ¥ 860,760 ¥ 7,045,964 ¥ 133,919 Investment funds 1,662,843 1,759 30,748 337,619 77,334 — 1,215,383 Special purpose entities created for structured financing 248,049 — 3,820 — — 143,688 100,541 Repackaged instruments 296,435 9,892 — 137,795 132,951 15,000 797 Securitization of the MUFG Group’s assets 10,447,956 — 1,664 — — 10,428,225 18,067 Trust arrangements 5,352,775 — — 803,348 1,811,498 2,737,908 21 Other 85,008 470 5,366 14,059 38,219 2,481 24,413 Total consolidated assets before elimination 26,279,985 78,882 75,424 1,338,510 2,920,762 20,373,266 1,493,141 The amounts eliminated in consolidation (3,671,326) (68,736) (41,258) (72,217) (600,219) (2,859,135) (29,761) Total consolidated assets ¥ 22,608,659 ¥ 10,146 ¥ 34,166 ¥ 1,266,293 ¥ 2,320,543 ¥ 17,514,131 ¥ 1,463,380 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other liabilities (in millions) Asset-backed conduits ¥ 8,162,014 ¥ — ¥ 6,331,278 ¥ 1,371,157 ¥ 459,579 Investment funds 1,147,832 — 1,136,495 8,772 2,565 Special purpose entities created for structured financing 136,230 — — 117,947 18,283 Repackaged instruments 301,045 — — 287,192 13,853 Securitization of the MUFG Group’s assets 10,460,439 — — 10,454,694 5,745 Trust arrangements 5,352,880 3,292,449 1,131,120 — 929,311 Other 78,350 — 966 54,159 23,225 Total consolidated liabilities before elimination 25,638,790 3,292,449 8,599,859 12,293,921 1,452,561 The amounts eliminated in consolidation (16,806,678) (432) (4,242,371) (11,888,346) (675,529) The amount of liabilities with recourse to the general credit of the MUFG Group (8,275,821) (3,292,017) (4,311,280) (26,558) (645,966) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 556,291 ¥ — ¥ 46,208 ¥ 379,017 ¥ 131,066 Consolidated VIEs Consolidated assets At September 30, 2024: Total Cash and due from banks Interest-earning deposits in other banks Trading account assets Investment securities Loans All other (in millions) Asset-backed conduits ¥ 7,837,476 ¥ 59,653 ¥ 9,056 ¥ 30,660 ¥ 1,066,793 ¥ 6,635,495 ¥ 35,819 Investment funds 1,931,625 3,627 77,762 316,919 82,111 — 1,451,206 Special purpose entities created for structured financing 264,271 — 7,299 — — 161,314 95,658 Repackaged instruments 299,749 5,267 — 134,983 142,925 15,000 1,574 Securitization of the MUFG Group’s assets 9,973,885 — 571 — — 9,957,585 15,729 Trust arrangements 3,881,900 — — 818,856 1,760,368 1,302,675 1 Other 238,122 489 4,148 6,023 38,737 4,269 184,456 Total consolidated assets before elimination 24,427,028 69,036 98,836 1,307,441 3,090,934 18,076,338 1,784,443 The amounts eliminated in consolidation (2,337,750) (63,432) (36,142) (35,724) (600,084) (1,436,388) (165,980) Total consolidated assets ¥ 22,089,278 ¥ 5,604 ¥ 62,694 ¥ 1,271,717 ¥ 2,490,850 ¥ 16,639,950 ¥ 1,618,463 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other (in millions) Asset-backed conduits ¥ 7,863,659 ¥ — ¥ 5,909,982 ¥ 1,438,850 ¥ 514,827 Investment funds 1,401,945 — 1,389,280 8,944 3,721 Special purpose entities created for structured financing 143,924 — — 132,986 10,938 Repackaged instruments 281,658 — — 234,474 47,184 Securitization of the MUFG Group’s assets 9,986,252 — — 9,982,854 3,398 Trust arrangements 3,882,061 1,884,244 1,086,986 — 910,831 Other 311,764 — 807 278,751 32,206 Total consolidated liabilities before elimination 23,871,263 1,884,244 8,387,055 12,076,859 1,523,105 The amounts eliminated in consolidation (16,627,232) (369) (4,279,490) (11,630,196) (717,177) The amount of liabilities with recourse to the general credit of the MUFG Group (6,627,312) (1,883,875) (4,066,740) (6,247) (670,450) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 616,719 ¥ — ¥ 40,825 ¥ 440,416 ¥ 135,478 In general, the creditors or beneficial interest holders of consolidated VIEs have recourse not only to the assets of those VIEs of which they are creditors or beneficial interest holders, but also to other assets of the MUFG Group, since the MUFG Group is also contractually required to provide credit enhancement or program-wide liquidity to these VIEs. The following tables present the total assets of non-consolidated VIEs, the maximum exposure to loss resulting from the MUFG Group’s involvement with non-consolidated VIEs, and the assets and liabilities which relate to the MUFG’s variable interests in non-consolidated VIEs at March 31, 2024 and September 30, 2024: Non-consolidated VIEs On-balance sheet assets On-balance sheet liabilities At March 31, 2024 (As Adjusted): Total assets Maximum exposure Total Trading account assets Investment securities Loans All other assets Total All other liabilities (in millions) Asset-backed conduits ¥ 39,009,182 ¥ 9,223,412 ¥ 7,284,351 ¥ 13,184 ¥ 2,147,351 ¥ 5,123,816 ¥ — ¥ 3,860 ¥ 3,860 Investment funds 140,717,674 7,385,746 4,757,037 321,000 300,803 3,719,748 415,486 16,172 16,172 Special purpose entities created for structured financing 72,102,436 7,696,582 5,334,476 93,808 61,114 5,134,236 45,318 251,944 251,944 Repackaged instruments 10,205,539 5,144,654 5,004,762 1,683,889 2,592,589 497,156 231,128 — — Other 96,343,162 4,594,025 3,234,286 261,745 — 2,871,454 101,087 17,651 17,651 Total ¥ 358,377,993 ¥ 34,044,419 ¥ 25,614,912 ¥ 2,373,626 ¥ 5,101,857 ¥ 17,346,410 ¥ 793,019 ¥ 289,627 ¥ 289,627 Non-consolidated VIEs On-balance sheet assets On-balance sheet liabilities At September 30, 2024: Total assets Maximum exposure Total Trading account assets Investment securities Loans All other Total All other liabilities (in millions) Asset-backed conduits ¥ 29,789,964 ¥ 8,667,183 ¥ 6,681,352 ¥ 29,401 ¥ 2,157,031 ¥ 4,494,920 ¥ — ¥ 982 ¥ 982 Investment funds 107,184,083 7,026,974 4,568,235 386,996 211,183 3,738,255 231,801 12,116 12,116 Special purpose entities created for structured financing 71,035,055 7,415,470 5,068,653 102,641 59,518 4,840,457 66,037 211,236 211,236 Repackaged instruments 8,231,091 4,300,776 4,212,759 1,741,380 1,801,704 466,149 203,526 89 89 Other 98,123,684 4,512,729 3,214,095 309,771 — 2,785,355 118,969 22,687 22,687 Total ¥ 314,363,877 ¥ 31,923,132 ¥ 23,745,094 ¥ 2,570,189 ¥ 4,229,436 ¥ 16,325,136 ¥ 620,333 ¥ 247,110 ¥ 247,110 Maximum exposure to loss on each type of entity is determined based on the carrying amount of any on-balance sheet assets and any off-balance sheet liabilities held, net of any recourse liabilities. Therefore, the maximum exposure to loss represents the maximum loss the MUFG Group could possibly incur at each balance sheet date and does not reflect the likelihood of such a loss being incurred. The difference between the amount of on-balance sheet assets and the maximum exposure to loss primarily comprises the remaining undrawn commitments.

Fees and Commissions Income

Fees and Commissions Income	6 Months Ended
	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
Fees and Commissions Income	FEES AND COMMISSIONS INCOME Disaggregation of Contract Revenue Details of fees and commissions income for the six months ended September 30, 2023 and 2024 are as follows: 2023 2024 (in millions) Fees and commissions on deposits ¥ 18,277 ¥ 18,418 Fees and commissions on remittances and transfers 73,481 78,435 Fees and commissions on foreign trading business 36,905 42,601 Fees and commissions on credit card business 120,202 128,463 Fees and commissions on security-related services 133,126 169,960 Fees and commissions on administration and management services for investment funds 150,700 162,524 Trust fees 62,724 69,501 Guarantee fees (1) 25,270 26,663 Insurance commissions 29,934 38,107 Fees and commissions on real estate business 22,347 28,190 Other fees and commissions (2) 213,264 250,166 Total ¥ 886,230 ¥ 1,013,028 Notes: (1) Guarantee fees are not within the scope of the guidance on revenue from contracts with customers. (2) Other fees and commissions include non-refundable financing related fees that are not within the scope of the guidance on revenue from contracts with customers. The following is an explanation of the relationship with revenue information disclosed for each reportable segment. These revenues from contracts with customers are related to various reportable segments disclosed in Note 17. The business segment information is derived from the internal management reporting system used by management to measure the performance of the MUFG Group’s business segments. In addition, the business segment information is primarily based on the financial information prepared in accordance with Japanese GAAP as adjusted in accordance with internal management accounting rules and practices. Further, the format and information as disclosed in Note 17 are not consistent with the accompanying condensed consolidated financial statements prepared on the basis of U.S. GAAP. For example, management does not use information on segments’ gross revenue to allocate resources and assess performance. The majority of fees and commissions on deposits are attributable to Retail & Digital Business Group (“R&D”) and Global Commercial Banking Business Group (“GCB”) with no significant concentration in any particular segments. The business activities relevant to fees and commissions on remittances and transfers are attributable to R&D, Commercial Banking & Wealth Management Business Group (“CWM”), Japanese Corporate Investment Banking Business Group (“JCIB”) and Global Corporate Investment Banking Business Group (“GCIB”) with no significant concentration in any particular segments. The business activities relevant to fees and commissions on foreign trading business are attributable to R&D, CWM, JCIB and GCIB with no significant concentration in any particular segments. The business activities relevant to fees and commissions on credit card business are substantially attributable to R&D and GCB with no significant concentration in any particular segments. The majority of fees and commissions on security-related services are from the business activities relevant to R&D, CWM, with JCIB and GCIB providing a smaller impact. The business activities relevant to fees and commissions on administration and management services for investment funds are substantially attributable to Asset Management & Investor Service Business Group (“AM/IS”). The business activities relevant to trust fees are attributable to AM/IS. The majority of insurance commissions are from the business activities relevant to R&D, CWM, and GCB with no significant concentration in any particular segments. The business activities relevant to fees and commissions on real estate business are attributable to CWM and JCIB with no significant concentration in any particular segments.

Business Segments

Business Segments	6 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Business Segments	BUSINESS SEGMENTS The reportable segments of the MUFG Group are subject to the periodical review by the Executive Committee, which represents the MUFG Group’s chief operating decision maker, to determine the allocation of management resources and assess performance. The MUFG Group has established its business units according to the characteristics of customers and the nature of the underlying business. Each business unit engages in business activities based on comprehensive strategies developed for and aimed at respective targeted customers and businesses. The business segment information is primarily based on the financial information prepared in accordance with Japanese GAAP as adjusted in accordance with internal management accounting rules and practices. Accordingly, the format and information are not consistent with the accompanying condensed consolidated financial statements prepared on the basis of U.S. GAAP. A reconciliation is provided for the total amounts of segments’ operating profit with income before income tax expense under U.S. GAAP. The MUFG Group does not use information on the segments’ total assets to allocate its resources and assess performance. Accordingly, business segment information on total assets is not presented. However, in order to ensure more efficient management of resources, and to strengthen controls on profits and losses in each business group, the MUFG Group allocate fixed assets of both MUFG Bank on a stand-alone basis and Mitsubishi UFJ Trust and Banking on a stand-alone basis to each business unit. Accordingly, such fixed assets allocated to business groups are presented below. The MUFG Group integrated the operations of its consolidated subsidiaries into seven business segments—Retail & Digital, Commercial Banking & Wealth Management, Japanese Corporate & Investment Banking, Global Commercial Banking, Asset Management & Investor Services, Global Corporate & Investment Banking, and Global Markets. The following is a brief explanation of the MUFG Group’s business segments: Retail & Digital Business Group —Covers the businesses of Mitsubishi UFJ NICOS, other consumer finance companies, and MUFG Bank with individual customers (excluding wealth management customers) and corporate customers in Japan through the three channels under the concept of “Real (Face-to-Face) × Remote × Digital”. Commercial Banking & Wealth Management Business Group —Covers small and medium sized enterprise clients and wealth management clients in Japan, offering an extensive array of commercial banking, trust banking and securities products and services. Japanese Corporate & Investment Banking Business Group —Covers the large Japanese corporate businesses. This business group offers large Japanese corporations advanced financial solutions designed to respond to their diversified and globalized needs and to contribute to their business and financial strategies through the global network of the MUFG group companies. Global Commercial Banking Business Group —Covers the retail and commercial banking businesses of Krungsri and Bank Danamon. This business group offers a comprehensive array of financial products and services such as loans, deposits, fund transfers, investments and asset management services for local retail, small and medium-sized enterprise, and corporate customers across the Asia-Pacific region. Asset Management & Investor Services Business Group —Covers the asset management and asset administration businesses of Mitsubishi UFJ Trust and Banking, MUFG Bank and First Sentier Investors. By integrating the trust banking expertise of Mitsubishi UFJ Trust and Banking and the global strengths of MUFG Bank, the business group offers a full range of asset management and administration services for corporations and pension funds, including pension fund management and administration, advice on pension structures, and payments to beneficiaries, and also offers investment trusts for retail customers. Global Corporate & Investment Banking Business Group —Covers the global corporate, investment and transaction banking businesses of MUFG Bank and Mitsubishi UFJ Securities Holdings. Through a global network of offices and branches, this business group provides large non-Japanese corporate and financial institution customers outside Japan with a comprehensive set of solutions that meet their increasingly diverse and sophisticated financing needs. Global Markets Business Group —Covers the customer business and the treasury operations of MUFG Bank, Mitsubishi UFJ Trust and Banking and Mitsubishi UFJ Securities Holdings. The customer business includes sales and trading in fixed income instruments, currencies, equities and other investment products as well as origination and distribution of financial products. The treasury operations include asset and liability management as well as global investments for the MUFG Group. Other —Consists mainly of the corporate centers of MUFG, MUFG Bank, Mitsubishi UFJ Trust and Banking and Mitsubishi UFJ Morgan Stanley Securities. The elimination of duplicated amounts of net revenues among business segments is also reflected in Other. The MUFG Group made modifications to its internal management accounting rules and practices, effective April 1, 2024, including reorganizing the Digital Service Business Group and Retail & Commercial Banking Business Group into the Retail & Digital Business Group and the Commercial Banking & Wealth Management Business Group and changing the internal accounting rules for headquarters and other overhead expenses. These modifications had the following impact on its previously reported business segment information for the six months ended September 30, 2023: • reducing the operating loss of Other and increasing the operating profits of the Global Commercial Banking Business Group by ¥84.6 billion and ¥0.2 billion, respectively; • reducing the operating profits of the Global Corporate & Investment Banking Business Group, the Japanese Corporate & Investment Banking Business Group, the Retail & Digital Business Group, the Commercial Banking & Wealth Management Business Group, the Global Markets Business Group and the Asset Management & Investor Services Business Group by ¥39.4 billion, ¥20.7 billion, ¥17.4 billion, ¥6.7 billion, ¥4.3 billion and ¥1.9 billion, respectively; • increasing the fixed assets, the increase in fixed assets and the depreciation of the Retail & Digital Business Group by ¥58.6 billion, ¥6.0 billion, and ¥4.3 billion, of the Japanese Corporate & Investment Banking Business Group by ¥2.5 billion, ¥0.3 billion and ¥0.2 billion, respectively, and of the Global Markets Business Group by ¥2.5 billion, ¥0.2 billion and ¥0.1 billion, as well as increasing the fixed assets of the Global Corporate & Investment Banking Business Group by ¥0.8 billion and of the Global Commercial Banking Business Group by ¥0.2 billion, respectively; and • 　 reducing the fixed assets, the increase in fixed assets and the depreciation of the Commercial Banking & Wealth Management Business Group by ¥40.7 billion, ¥3.9 billion and ¥2.9 billion, respectively, and of Other by ¥23.9 billion, ¥2.6 billion and ¥1.7 billion, respectively. Prior period business segment information has been restated to enable comparison between the relevant amounts for the six months ended September 30, 2023 and 2024. Starting from the fiscal year ending March 31, 2025, the fiscal year of Krungsri an entity includes in the Global Commercial Banking Business Group, has been changed from the previous January to December period to an April to March period for consolidation purposes. Given the treatment of reporting lag changes under Japanese GAAP, there is no retrospective application of the change. In connection with this change, the segment amounts prepared in accordance with Japanese GAAP for the six-month period ended September 30, 2024, reflect Krungsri's relevant amounts for the nine months ended September 30, 2024. For a discussion of the treatment of reporting lag changes under U.S. GAAP, see Note 1. Customer Business Retail & Digital Business Group Commercial Banking & Wealth Management Business Group Japanese Global Asset Global Total Global Other Total (in billions) Six months ended September 30, 2023: Net revenue: ¥ 409.3 ¥ 283.6 ¥ 455.9 ¥ 310.8 ¥ 205.7 ¥ 409.0 ¥ 2,074.3 ¥ 376.5 ¥ 44.6 ¥ 2,495.4 BK and TB (1) : 155.7 189.5 371.7 19.5 56.8 367.3 1,160.5 226.5 122.8 1,509.8 Net interest income 123.8 93.7 230.9 19.1 6.5 186.7 660.7 97.3 128.5 886.5 Net fees 30.2 78.7 104.7 — 50.3 163.1 427.0 (8.5) (9.7) 408.8 Other 1.7 17.1 36.1 0.4 — 17.5 72.8 137.7 4.0 214.5 Other than BK and TB 253.6 94.1 84.2 291.3 148.9 41.7 913.8 150.0 (78.2) 985.6 Operating expenses 310.7 202.3 182.2 174.6 147.6 204.1 1,221.5 149.0 52.6 1,423.1 Operating profit (loss) ¥ 98.6 ¥ 81.3 ¥ 273.7 ¥ 136.2 ¥ 58.1 ¥ 204.9 ¥ 852.8 ¥ 227.5 ¥ (8.0) ¥ 1,072.3 Fixed assets (2) ¥ 231.4 ¥ 170.3 ¥ 163.5 ¥ 1.5 ¥ 22.1 ¥ 169.2 ¥ 758.0 ¥ 110.9 ¥ 508.0 ¥ 1,376.9 Increase in fixed assets (3) ¥ 25.1 ¥ 16.9 ¥ 22.6 ¥ 0.2 ¥ 7.3 ¥ 15.9 ¥ 88.0 ¥ 13.3 ¥ 12.7 ¥ 114.0 Depreciation (3) ¥ 11.3 ¥ 9.1 ¥ 21.4 ¥ 0.1 ¥ 4.0 ¥ 21.8 ¥ 67.7 ¥ 15.6 ¥ 6.9 ¥ 90.2 Six months ended September 30, 2024: Net revenue: ¥ 457.1 ¥ 339.1 ¥ 502.9 ¥ 577.3 ¥ 244.4 ¥ 433.1 ¥ 2,553.9 ¥ 361.2 ¥ (10.3) ¥ 2,904.8 BK and TB (1) : 190.3 227.7 405.9 19.8 67.7 383.1 1,294.5 227.4 41.1 1,563.0 Net interest income 149.3 122.2 253.1 19.8 12.6 206.7 763.7 56.9 84.6 905.2 Net fees 39.3 85.4 119.0 — 55.0 161.3 460.0 (12.0) (13.7) 434.3 Other 1.7 20.1 33.8 — 0.1 15.1 70.8 182.5 (29.8) 223.5 Other than BK and TB 266.8 111.4 97.0 557.5 176.7 50.0 1,259.4 133.8 (51.4) 1,341.8 Operating expenses 328.4 210.8 188.3 302.2 175.5 208.4 1,413.6 158.7 38.0 1,610.3 Operating profit (loss) ¥ 128.7 ¥ 128.3 ¥ 314.6 ¥ 275.1 ¥ 68.9 ¥ 224.7 ¥ 1,140.3 ¥ 202.5 ¥ (48.3) ¥ 1,294.5 Fixed assets (2) ¥ 250.7 ¥ 179.7 ¥ 165.5 ¥ 1.8 ¥ 21.3 ¥ 158.2 ¥ 777.2 ¥ 95.3 ¥ 492.7 ¥ 1,365.2 Increase in fixed assets (3) ¥ 22.5 ¥ 17.3 ¥ 20.5 ¥ 0.3 ¥ 4.0 ¥ 10.6 ¥ 75.2 ¥ 10.7 ¥ 12.0 ¥ 97.9 Depreciation (3) ¥ 15.9 ¥ 10.2 ¥ 20.4 ¥ 0.1 ¥ 3.9 ¥ 17.8 ¥ 68.3 ¥ 15.4 ¥ 6.5 ¥ 90.2 Notes: (1) “BK and TB” is a sum of MUFG Bank on a stand-alone basis (BK) and Mitsubishi UFJ Trust and Banking on a stand-alone basis (TB). (2) Fixed assets in the above table are based on the financial information prepared in accordance with Japanese GAAP as adjusted in accordance with internal management accounting rules and practices, and the amounts correspond to premises and equipment-net, intangible assets-net and goodwill of BK and TB. Fixed assets of MUFG and other consolidated subsidiaries and Japanese GAAP consolidation adjustments amounting to ¥1,344.5 billion as of September 30, 2023 and ¥1,820.3 billion as of September 30, 2024, respectively, are not allocated to each business segment when determining the allocation of management resources and assessing performance and, therefore, such amounts are not included in the table above. (3) These amounts are related to the fixed assets of BK and TB included in the table above. Reconciliation As set forth above, the measurement basis and the income and expense items of the internal management reporting system are different from the accompanying condensed consolidated statements of income. Therefore, it is impracticable to present reconciliations of all of the business segments’ information, other than operating profit, to corresponding items in the accompanying condensed consolidated statements of income. A reconciliation of operating profit and fixed assets under the internal management reporting system for the six months ended September 30, 2023 and 2024 above to income before income tax expense shown in the accompanying condensed consolidated statements of income and the total amount of premises and equipment-net, intangible assets-net and goodwill are as follows: Starting from the fiscal year ending March 31, 2025, the fiscal year of Krungsri has been changed from the previous January to December period to an April to March period for consolidation purposes. In connection with this change, the operating profit prepared in accordance with Japanese GAAP includes Krungsri's operating profit for nine months, while the income before income tax expense prepared in accordance with U.S. GAAP includes Krungsri's income before income tax expense for six months. The adjustment for the difference between the two is included in Other – net. Six months ended 2023 2024 (in billions) Operating profit: ¥ 1,072 ¥ 1,295 Provision for credit losses (72) (129) Foreign exchange gains (losses)—net (379) 173 Trading account gains (losses)—net (1,139) 425 Equity investment securities gains (losses)—net 625 (493) Debt investment securities gains (losses)—net 104 (13) Equity in earnings of equity method investees—net 215 316 Reversal of off-balance sheet credit instruments 4 1 Other—net (141) (231) Income before income tax expense ¥ 289 ¥ 1,344 Fixed assets: ¥ 1,377 ¥ 1,365 U.S. GAAP adjustments and other 1,111 1,594 Premises and equipment-net, Intangible assets-net and Goodwill ¥ 2,488 ¥ 2,959

Fair Value

Fair Value	6 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value	FAIR VALUE For a discussion and explanation of the MUFG Group’s valuation methodologies for assets and liabilities measured at fair value and the fair value hierarchy, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. During the six months ended September 30, 2024, there were no changes to the MUFG Group’s valuation methodologies that had a material impact on the MUFG Group’s financial position and results of operations. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following tables present the financial instruments carried at fair value by level within the fair value hierarchy as of March 31, 2024 and September 30, 2024: At March 31, 2024 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 18,626,261 ¥ 13,463,967 ¥ 2,041,954 ¥ 34,132,182 Debt securities Japanese national government and Japanese government agency bonds 6,278,228 395,745 — 6,673,973 Japanese prefectural and municipal bonds — 91,683 — 91,683 Foreign government and official institution bonds 10,170,757 668,715 101 10,839,573 Corporate bonds 8,937 2,723,957 — 2,732,894 Residential mortgage-backed securities — 5,422,286 — 5,422,286 Asset-backed securities — 1,374,191 1,352,755 2,726,946 Other debt securities — 2,599 536,846 539,445 Commercial paper — 1,609,441 — 1,609,441 Equity securities (2) 2,168,339 1,175,350 152,252 3,495,941 Trading derivative assets 90,334 15,099,648 151,242 15,341,224 Interest rate contracts 14,143 9,381,056 110,013 9,505,212 Foreign exchange contracts 10,473 5,623,544 12,647 5,646,664 Equity contracts 65,718 48,606 8,647 122,971 Commodity contracts — 391 18,282 18,673 Credit derivatives — 46,047 1,148 47,195 Other (8) — 4 505 509 Trading loans (3) — 31,542 — 31,542 Investment securities: Available-for-sale debt securities 23,569,981 7,648,181 204,805 31,422,967 Japanese national government and Japanese government agency bonds 21,336,860 1,830,540 — 23,167,400 Japanese prefectural and municipal bonds — 1,045,991 — 1,045,991 Foreign government and official institution bonds 2,233,121 1,069,430 — 3,302,551 Corporate bonds — 1,021,296 5,172 1,026,468 Residential mortgage-backed securities — 1,229,510 15 1,229,525 Asset-backed securities — 1,114,195 132,951 1,247,146 Other debt securities — 337,219 66,667 403,886 Equity securities 5,400,634 70,172 87,814 5,558,620 Marketable equity securities 5,400,634 70,172 — 5,470,806 Nonmarketable equity securities (4) — — 87,814 87,814 Other (5) 1,175,125 1,229,942 139,120 2,544,187 Total ¥ 48,862,335 ¥ 37,543,452 ¥ 2,624,935 ¥ 89,030,722 At March 31, 2024 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 103,705 ¥ 4,508 ¥ — ¥ 108,213 Trading derivative liabilities 117,567 16,261,406 92,336 16,471,309 Interest rate contracts 30,997 10,594,827 70,527 10,696,351 Foreign exchange contracts 954 5,532,241 2,449 5,535,644 Equity contracts 85,616 72,337 389 158,342 Commodity contracts — — 18,327 18,327 Credit derivatives — 61,999 488 62,487 Other (8) — 2 156 158 Obligation to return securities received as collateral (6) 6,955,707 195,622 71,399 7,222,728 Other (7) — 192,649 66,452 259,101 Total ¥ 7,176,979 ¥ 16,654,185 ¥ 230,187 ¥ 24,061,351 At September 30, 2024 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 18,900,000 ¥ 16,352,138 ¥ 2,241,273 ¥ 37,493,411 Debt securities Japanese national government and Japanese government agency bonds 5,946,162 462,070 — 6,408,232 Japanese prefectural and municipal bonds — 116,197 — 116,197 Foreign government and official institution bonds 10,637,393 768,921 — 11,406,314 Corporate bonds 3,958 2,724,574 112,867 2,841,399 Residential mortgage-backed securities — 7,973,417 — 7,973,417 Asset-backed securities — 1,315,776 1,462,122 2,777,898 Other debt securities — 36,299 528,173 564,472 Commercial paper — 1,888,753 — 1,888,753 Equity securities (2) 2,312,487 1,066,131 138,111 3,516,729 Trading derivative assets 59,901 16,140,296 150,916 16,351,113 Interest rate contracts 15,339 10,287,267 106,982 10,409,588 Foreign exchange contracts 5,123 5,739,249 15,129 5,759,501 Equity contracts 39,439 55,442 7,719 102,600 Commodity contracts — 534 19,299 19,833 Credit derivatives — 57,782 914 58,696 Other (8) — 22 873 895 Trading loans (3) — 38,834 — 38,834 Investment securities: Available-for-sale debt securities 19,498,699 7,267,926 196,201 26,962,826 Japanese national government and Japanese government agency bonds 17,220,733 1,419,509 — 18,640,242 Japanese prefectural and municipal bonds — 860,618 — 860,618 Foreign government and official institution bonds 2,277,966 1,152,029 — 3,429,995 Corporate bonds — 937,409 4,614 942,023 Residential mortgage-backed securities — 1,173,742 15 1,173,757 Asset-backed securities — 1,269,731 142,924 1,412,655 Other debt securities — 454,888 48,648 503,536 Equity securities 4,305,959 63,240 91,868 4,461,067 Marketable equity securities (9) 4,305,959 63,240 — 4,369,199 Nonmarketable equity securities (4) — — 91,868 91,868 Other (5) 820,022 1,585,037 130,030 2,535,089 Total ¥ 43,584,581 ¥ 41,447,471 ¥ 2,810,288 ¥ 87,842,340 At September 30, 2024 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 88,055 ¥ 8,766 ¥ — ¥ 96,821 Trading derivative liabilities 95,158 16,550,559 106,780 16,752,497 Interest rate contracts 24,727 11,168,456 84,192 11,277,375 Foreign exchange contracts 3,024 5,272,762 2,358 5,278,144 Equity contracts 67,407 54,679 297 122,383 Commodity contracts — — 19,329 19,329 Credit derivatives — 54,643 498 55,141 Other (8) — 19 106 125 Obligation to return securities received as collateral (6) 5,971,347 309,829 53,827 6,335,003 Other (7) — 424,438 53,251 477,689 Total ¥ 6,154,560 ¥ 17,293,592 ¥ 213,858 ¥ 23,662,010 Notes: (1) Includes securities measured under the fair value option. (2) Excludes certain investments valued at net asset value of private equity funds whose fair values at March 31, 2024 were ¥264,458 million and those at September 30, 2024 were ¥265,182 million, respectively. The amounts of unfunded commitments related to these private equity funds at March 31, 2024 were ¥134,429 million, and those at September 30, 2024 were ¥215,142 million, respectively. For the nature and details of these investments, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (3) Includes loans measured under the fair value option. (4) Excludes certain investments valued at net asset value of real estate funds and private equity and other funds whose fair values at March 31, 2024 were ¥37,207 million and ¥53,324 million, respectively, and those at September 30, 2024 were ¥37,064 million and ¥55,666 million, respectively. The amounts of unfunded commitments related to these real estate funds and private equity and other funds at March 31, 2024 were ¥869 million and ¥250 million, respectively, and those at September 30, 2024 were nil and ¥250 million, respectively. For the nature and details of these investments, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (5) Mainly comprises securities received as collateral that may be sold or repledged under securities lending transactions. (6) Included in Other liabilities. (7) Mainly includes other short-term borrowings, long-term debt and bifurcated embedded derivatives carried at fair value. (8) Includes certain derivatives such as earthquake derivatives. (9) Includes equity securities subject to contractual sale restrictions, with a total fair value of ¥14,902 million at September 30, 2024. The contractual restriction of these securities is a lock-up agreement, a market standoff agreement, or the result of a provision within a separate agreement between certain shareholders, and the range of remaining duration of these restrictions are 0.2 - 3.5 years. The market standoff agreements expire when the share price changes to a certain extent, and other agreements do not have specific clauses for a lapse in the restriction. See Note 1 for further information. Changes in Level 3 Recurring Fair Value Measurements The following tables present a reconciliation of the assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the six months ended September 30, 2023 and 2024. The determination to classify a financial instrument within Level 3 is based upon the significance of the unobservable inputs to overall fair value measurement. However, Level 3 financial instruments typically include, in addition to the unobservable or Level 3 input, observable inputs (inputs that are actively quoted and can be validated to external sources). Accordingly, the gains and losses in the tables below include changes in fair value due in part to observable inputs used in the valuation techniques. Six month ended September 30, 2023 (As Adjusted): Total gains (losses) Change in unrealized gains (losses) for assets and liabilities still held at September 30, 2023 March 31, 2023 Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, 2023 (in millions) Assets Trading account assets: Trading securities (1) ¥ 1,182,319 ¥ 149,674 (2) ¥ — ¥ 494,881 ¥ — ¥ (626) ¥ (9,895) ¥ 145 ¥ — ¥ 1,816,498 ¥ 148,307 (2) Debt securities Foreign government and official institution bonds 1,168 122 — 7 — (7) (1,140) — — 150 (1) Asset-backed securities 668,911 108,122 — 345,917 — — (4,191) — — 1,118,759 107,898 Other debt securities 334,124 42,225 — 141,000 — — — — — 517,349 42,225 Equity securities 178,116 (795) — 7,957 — (619) (4,564) 145 — 180,240 (1,815) Trading derivatives—net 81,096 (12,416) (2) 1,836 4 (355) — (10,117) 10,271 (55,284) 15,035 (14,426) (2) Interest rate contracts—net 48,629 (16,890) (1,036) — — — 1,267 10,595 (5) (53,445) (5) (10,880) (18,757) Foreign exchange contracts—net 11,345 (2,797) 999 — — — 417 (324) 59 9,699 (2,220) Equity contracts—net 16,928 8,065 1,874 4 — — (11,696) — (116) 15,059 7,327 Commodity contracts—net 91 (128) (1) — — — (6) — — (44) (128) Credit derivatives—net 3,739 (661) — — — — (99) — (1,782) 1,197 (648) Other—net (8) 364 (5) — — (355) — — — — 4 — Investment securities: Available-for-sale debt securities 253,964 1,681 (3) 20,605 205,826 — — (140,321) 26 — 341,781 18,340 (3) Corporate bonds 2,000 (2) 243 — — — (4) 26 — 2,263 241 Residential mortgage-backed securities 15 — — — — — — — — 15 — Asset-backed securities 182,938 1,597 15,841 205,611 — — (133,267) — — 272,720 13,492 Other debt securities 69,011 86 4,521 215 — — (7,050) — — 66,783 4,607 Equity securities 74,287 4,945 (3) 268 5,900 — (1,474) — — (462) 83,465 4,063 (3) Nonmarketable equity securities 74,287 4,945 268 5,900 — (1,474) — — (462) 83,465 4,063 Other 92,292 (128) (7) 101 27,955 — — (48) — — 120,173 (128) (7) Total ¥ 1,683,958 ¥ 143,756 ¥ 22,810 ¥ 734,566 ¥ (355) ¥ (2,100) ¥ (160,381) ¥ 10,442 ¥ (55,746) ¥ 2,376,952 ¥156,156 Liabilities Obligation to return securities received as collateral ¥ 68,204 ¥ — ¥ — ¥ — ¥ 5,053 ¥ — ¥ — ¥ — ¥ — ¥ 73,257 ¥ — Other 73,663 (24,475) (4) (5,791) — 23,080 — (54,619) 5,147 (6) (48,605) (6) 28,932 (6,980) (4) Total ¥ 141,867 ¥ (24,475) ¥ (5,791) ¥ — ¥ 28,133 ¥ — ¥ (54,619) ¥ 5,147 ¥ (48,605) ¥ 102,189 ¥ (6,980) Six month ended September 30, 2024: Total gains (losses) Change in unrealized gains (losses) for assets and liabilities still held at September 30, 2024 March 31, Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, 2024 (in millions) Assets Trading account assets: Trading securities (1) ¥ 2,041,954 ¥ (86,296) (2) ¥ (5,778) ¥ 356,780 ¥ — ¥ (2,059) ¥ (141,812) ¥ 78,484 ¥ — ¥ 2,241,273 ¥ (88,871) (2) Debt securities Foreign government and official institution bonds 101 (1) — — — — (100) — — — — Corporate bonds — (3,751) — 38,158 — — — 78,460 (5) — 112,867 (3,751) Asset-backed securities 1,352,755 (74,833) (5,778) 311,613 — — (121,635) — — 1,462,122 (74,912) Other debt securities 536,846 (8,673) — — — — — — — 528,173 (8,673) Equity securities 152,252 962 — 7,009 — (2,059) (20,077) 24 — 138,111 (1,535) Trading derivatives—net 58,906 2,123 (2) 981 670 (312) — (7,460) (14,859) 4,087 44,136 23,415 (2) Interest rate contracts—net 39,486 (10,625) (602) — — — 2,889 (13,741) (5) 5,383 22,790 8,860 Foreign exchange contracts—net 10,198 3,559 862 — — — 434 (1,118) (1,164) 12,771 6,085 Equity contracts—net 8,258 9,284 725 — — — (10,713) — (132) 7,422 8,565 Commodity contracts—net (45) 25 (4) — — — (6) — — (30) 26 Credit derivatives—net 660 (180) — — — — (64) — — 416 (179) Other—net (8) 349 60 — 670 (312) — — — — 767 58 Investment securities: Available-for-sale debt securities 204,805 (12,495) (3) 12,193 39 — — (7,598) — (743) 196,201 (390) (3) Corporate bonds 5,172 324 (139) — — — — — (743) 4,614 157 Residential mortgage-backed securities 15 — — — — — — — — 15 — Asset-backed securities 132,951 — 9,973 — — — — — — 142,924 9,973 Other debt securities 66,667 (12,819) 2,359 39 — — (7,598) — — 48,648 (10,520) Equity securities 87,814 (149) (3) 445 5,390 — (519) — 779 (1,892) 91,868 (542) (3) Nonmarketable equity securities 87,814 (149) 445 5,390 — (519) — 779 (1,892) 91,868 (542) Other 139,120 (400) (7) 133 8,898 — — (17,721) — — 130,030 (400) (7) Total ¥ 2,532,599 ¥ (97,217) ¥ 7,974 ¥ 371,777 ¥ (312) ¥ (2,578) ¥ (174,591) ¥ 64,404 ¥ 1,452 ¥ 2,703,508 ¥ (66,788) Liabilities Obligation to return securities received as collateral ¥ 71,399 ¥ — ¥ — ¥ — ¥ — ¥ — ¥ (17,572) ¥ — ¥ — ¥ 53,827 ¥ — Other 66,452 (2,319) (4) (3,502) — 9,028 — (21,879) 2,213 (6) (8,384) (6) 53,251 (48) (4) Total ¥ 137,851 ¥ (2,319) ¥ (3,502) ¥ — ¥ 9,028 ¥ — ¥ (39,451) ¥ 2,213 ¥ (8,384) ¥ 107,078 ¥ (48) Notes: (1) Includes Trading securities measured under the fair value option. (2) Included in Trading account profits (losses)—net and Foreign exchange gains (losses)—net. (3) Included in Investment securities gains (losses)—net and Other comprehensive income, net of tax. (4) Included in Trading account losses—net and Other comprehensive income, net of tax. (5) For the six months ended September 30, 2023 and 2024, transfers into Level 3 for Interest rate contracts—net were mainly caused by changes in the impact of unobservable input to the entire fair value measurement. Unobservable inputs include loss given default. Transfers into Level 3 for Corporate bonds were mainly caused by the increased impact of the Liquidity Premium on Fair Value. Transfers out of Level 3 for Interest rate contracts—net were mainly caused by changes in the impact of unobservable inputs to the fair value measurement of the multi-callable swaps. (6) Transfers into (out of) Level 3 for long-term debt in Other were mainly caused by the decrease (increase) in the observability of the key inputs to the valuation models and a corresponding increase (decrease) in the significance of the unobservable inputs. (7) Included in Other non-interest income. (8) Includes certain derivatives such as earthquake derivatives. Quantitative Information about Level 3 Fair Value Measurements The following tables present information on the valuation techniques, significant unobservable inputs and their ranges for each major category of assets and liabilities measured at fair value on a recurring basis and classified in Level 3: At March 31, 2024 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities and Investment securities: Asset-backed securities ¥ 1,248,241 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 1.4 % ~ 1.6 % 1.4 % Prepayment rate 17.7% 17.7 % Probability of default 0.0 % ~ 93.0 % — (3) Recovery rate 55.0% 55.0 % Other debt securities 587,272 Discounted cash flow Liquidity premium 0.9 % ~ 3.2 % 2.8 % At March 31, 2024 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net 41,687 Option model Correlation between interest rates 30.0 % ~ 60.7 % 44.6 % Correlation between interest rate and foreign exchange rate (2.0) % ~ 60.0 % 35.0 % Volatility 61.2 % ~ 80.6 % 75.6 % Foreign exchange contracts—net 9,800 Option model Correlation between interest rates 30.0 % ~ 70.0 % 48.2 % Correlation between interest rate and foreign exchange rate 17.6 % ~ 60.0 % 36.3 % Correlation between foreign exchange rates 50.0 % ~ 70.6 % 66.4 % Volatility 9.9 % ~ 21.3 % 14.1 % Equity contracts—net 4,414 Option model Correlation between foreign exchange rate and equity 0.0 % ~ 30.0 % 20.0 % Correlation between equities 5.0 % ~ 76.0 % 57.5 % Volatility 25.0 % ~ 37.0 % 33.9 % At September 30, 2024 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities and Investment securities: Corporate bonds ¥ 112,867 Discounted cash flow Liquidity premium 0.0 % ~ 0.2 % 0.1 % Asset-backed securities 1,324,522 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 1.2 % ~ 1.4 % 1.3 % Prepayment rate 25.4% 25.4 % Probability of default 0.0 % ~ 99.0 % — % (3) Recovery rate 63.1% 63.1 % Other debt securities 570,116 Discounted cash flow Liquidity premium 1.6 % ~ 3.2 % 2.9 % At September 30, 2024 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net 27,919 Option model Correlation between interest rates 30.0 % ~ 97.5 % 59.6 % Correlation between interest rate and foreign exchange rate 5.0 % ~ 60.0 % 34.5 % Volatility 71.2 % ~ 104.5 % 77.9 % Foreign exchange contracts—net 12,571 Option model Correlation between interest rates 30.0 % ~ 70.0 % 42.8 % Correlation between interest rate and foreign exchange rate 16.3 % ~ 60.0 % 33.6 % Correlation between foreign exchange rates 50.0 % ~ 66.4 % 58.2 % Volatility 10.6 % ~ 21.0 % 13.9 % Equity contracts—net 3,062 Option model Correlation between foreign exchange rate and equity 6.0 % ~ 25.0 % 10.0 % Correlation between equities 8.8 % ~ 95.0 % 59.6 % Volatility 23.0 % ~ 37.0 % 27.0 % Notes: (1) The fair value as of March 31, 2024 and September 30, 2024 excludes the fair value of investments valued using vendor prices. (2) Weighted average is calculated by weighing each input by the relative fair value of the respective financial instruments for investment securities. Median is used for derivative instruments. (3) See “Probability of default” in “Change in and range of unobservable inputs” in Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (4) For further detail of Internal model, refer to the last paragraph of “Trading Account Assets and Liabilities—Trading Account Securities” in Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. Changes in and range of unobservable inputs For a discussion of the impact on fair value of changes in unobservable inputs and the relationships between unobservable inputs as well as a description of attributes of the underlying instruments and external market factors that affect the range of inputs used in the valuation of the MUFG Group’s Level 3 financial instruments, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Certain assets and liabilities may be measured at fair value on a nonrecurring basis in periods subsequent to their initial recognition. These assets are subject to fair value adjustments that result from the application of the lower of cost or fair value accounting, write-downs of individual assets or the measurement alternative for nonmarketable equity securities. See Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024 for further information on assets and liabilities measured at fair value on a nonrecurring basis. The following table presents the carrying value of assets measured at fair value on a nonrecurring basis by level within the fair value hierarchy as of March 31, 2024 and September 30, 2024: March 31, 2024 September 30, 2024 Level 1 Level 2 Level 3 Total carrying value Level 1 Level 2 Level 3 Total (in millions) Assets Investment securities (1)(2) ¥ — ¥ 9,460 ¥ 45,175 ¥ 54,635 ¥ — ¥ 12,290 ¥ 36,235 ¥ 48,525 Loans 2,271 5,181 630,005 637,457 1,990 4,689 570,953 577,632 Loans held for sale — — 472,711 472,711 — — 415,216 415,216 Collateral dependent loans 2,271 5,181 157,294 164,746 1,990 4,689 155,737 162,416 Premises and equipment — — 11,193 11,193 — — 5,902 5,902 Intangible assets — — 5,174 5,174 — — 169 169 Other assets — 32,481 18,567 51,048 — 5,154 16,218 21,372 Investments in equity method investees (1) — 27,801 1,702 29,503 — — 2,094 2,094 Other — 4,680 16,865 21,545 — 5,154 14,124 19,278 Total ¥ 2,271 ¥ 47,122 ¥ 710,114 ¥ 759,507 ¥ 1,990 ¥ 22,133 ¥ 629,477 ¥ 653,600 Notes: (1) Excludes certain investments valued at net asset value of ¥18,037 million and ¥19,833 million at March 31, 2024 and September 30, 2024, respectively. The unfunded commitments related to these investments are ¥24,208 million and ¥22,377 million at March 31, 2024 and September 30, 2024, respectively. These investments are in private equity funds. For the nature and details of private equity funds, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (2) Includes certain nonmarketable equity securities that are measured at fair value on a nonrecurring basis, including impairment and observable price change for nonmarketable equity securities measured under the measurement alternative. The following table presents losses recorded as a result of changes in the fair value of assets measured at fair value on a nonrecurring basis for the six months ended September 30, 2023 and 2024: Losses for the six months ended September 30, 2023 2024 (in millions) Investment securities ¥ 8,971 ¥ 8,473 Loans 45,660 23,967 Loans held for sale 11,096 1,480 Collateral dependent loans 34,564 22,487 Premises and equipment 1,142 13,072 Intangible assets 11,433 1,706 Other assets 24,286 15,257 Investments in equity method investees 12,687 274 Other 11,599 14,983 Total ¥ 91,492 ¥ 62,475 Loans held for sale are recorded at the lower of cost or fair value. The fair value of loans held for sale is based on secondary market prices, where available. Where no such price exists, the fair value is determined using prices observed in the market for a similar asset or assets, or determined based on discounted cash flows, which may be adjusted, as appropriate, to reflect other market conditions or the perceived credit risk of the borrower. These loans are principally classified in Level 3 of the fair value hierarchy, except when quoted prices are available but not traded actively, which results in such loans held for sale being classified in Level 2 of the fair value hierarchy. The significant unobservable inputs used for the fair value measurements of loans held for sale based on adjusted prices, which are categorized within Level 3 of the fair value hierarchy, consisted of prices ranging from ¥4.21 to ¥100.00 and from ¥6.67 to ¥100.00 as of March 31, 2024 and September 30, 2024, respectively, and the weighted average of prices were ¥83.38 and ¥95.61 as of March 31, 2024 and September 30, 2024, respectively. The significant unobservable inputs used for the fair value measurements of loans held for sale based on discounted cash flows, which are categorized within Level 3 of the fair value hierarchy, consisted of discount rates ranging from 0.83% to 11.87% and from 1.33% to 10.36% as of March 31, 2024 and September 30, 2024, respectively, and the weighted averages of the discount rates were 11.51% and 10.11% as of March 31, 2024 and September 30, 2024, respectively. Weighted average is calculated by weighing each input by the relative fair value of the respective financial instruments. Fair Value Option For a discussion of the primary financial instruments for which the fair value option was previously elected, including the basis for those, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. The following table presents the gains or losses recorded for the six months ended September 30, 2023 and 2024 related to the eligible instruments for which the MUFG Group elected the fair value option: Six months ended September 30, 2023 2024 Trading account profits (losses) Foreign exchange gains (losses) Total changes in fair value Trading account profits (losses) Foreign exchange gains (losses) Total changes in fair value (in millions) Financial assets: Trading account securities ¥ (596,477) ¥ 1,762,384 ¥ 1,165,907 ¥ 384,525 ¥ (816,042) ¥ (431,517) Total ¥ (596,477) ¥ 1,762,384 ¥ 1,165,907 ¥ 384,525 ¥ (816,042) ¥ (431,517) Financial liabilities: Other short-term borrowings (1) ¥ 2,592 ¥ — ¥ 2,592 ¥ 6,225 ¥ — ¥ 6,225 Long-term debt (1) (5,617) — (5,617) 16,488 — 16,488 Total ¥ (3,025) ¥ — ¥ (3,025) ¥ 22,713 ¥ — ¥ 22,713 Note: (1) Change in value attributable to the instrument-specific credit risk related to those financial liabilities are not material. The following table presents the differences between the aggregate fair value and the aggregate remaining contractual principal balance outstanding as of March 31, 2024 and September 30, 2024 for long-term debt instruments for which the fair value option has been elected: March 31, 2024 September 30, 2024 Remaining aggregate contractual amounts outstanding Fair value Fair value over (under) remaining aggregate contractual amounts outstanding Remaining aggregate contractual amounts outstanding Fair value Fair value over (under) remaining aggregate contractual amounts outstanding (in millions) Financial liabilities: Long-term debt ¥ 246,153 ¥ 234,909 ¥ (11,244) ¥ 205,399 ¥ 200,462 ¥ (4,937) Total ¥ 246,153 ¥ 234,909 ¥ (11,244) ¥ 205,399 ¥ 200,462 ¥ (4,937) Interest income and expense related to the assets and liabilities for which the fair value option is elected are measured based on the contractual rates and dividend income related to these assets are recognized when the shareholder right to receive the dividend is established. These interest income and expense and dividend income are reported in the accompanying condensed consolidated statements of income as either interest income or expense, depending on the nature of the related asset or liability. Estimated Fair Value of Financial Instruments The following is a summary of carrying amounts and estimated fair values by level within the fair value hierarchy of financial instruments which are not carried at fair value on a recurring basis in the accompanying condensed consolidated balance sheets as of March 31, 2024 and September 30, 2024: At March 31, 2024 Carrying amount Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 4,417 ¥ 4,417 ¥ 4,417 ¥ — ¥ — Interest-earning deposits in other banks 105,702 105,702 — 105,702 — Call loans and funds sold 1,738 1,738 — 1,738 — Receivables under resale agreements 18,824 18,824 — 18,824 — Receivables under securities borrowing transactions 5,001 5,001 — 5,001 — Investment securities 24,844 24,558 14,522 7,457 2,579 Loans, net of allowance for credit losses (1) 126,555 126,707 2 295 126,410 Other financial assets (2) 11,761 11,761 — 11,761 — Financial liabilities: Deposits Non-interest-bearing ¥ 38,805 ¥ 38,805 ¥ — ¥ 38,805 ¥ — Interest-bearing 208,360 208,512 — 208,512 — Total deposits 247,165 247,317 — 247,317 — Call money and funds purchased 5,094 5,094 — 5,094 — Payables under repurchase agreements 35,690 35,690 — 35,690 — Payables under securities lending transactions 1,017 1,017 — 1,017 — Due to trust account and other short-term borrowings 15,747 15,747 — 15,747 — Long-term debt 39,833 39,103 — 39,103 — Other financial liabilities 9,081 9,081 — 9,081 — At September 30, 2024 Carrying Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 4,056 ¥ 4,056 ¥ 4,056 ¥ — ¥ — Interest-earning deposits in other banks 104,084 104,084 — 104,084 — Call loans and funds sold 1,463 1,463 — 1,463 — Receivables under resale agreements 18,414 18,414 — 18,414 — Receivables under securities borrowing transactions 5,535 5,535 — 5,535 — Investment securities 22,739 22,549 12,927 7,799 1,823 Loans, net of allowance for credit losses (1) 128,849 129,101 2 298 128,801 Other financial assets (2) 9,453 9,453 — 9,453 — Financial liabilities: Deposits Non-interest-bearing ¥ 38,259 ¥ 38,259 ¥ — ¥ 38,259 ¥ — Interest-bearing 206,662 206,815 — 206,815 — Total deposits 244,921 245,074 — 245,074 — Call money and funds purchased 4,944 4,944 — 4,944 — Payables under repurchase agreements 37,724 37,724 — 37,724 — Payables under securities lending transactions 644 644 — 644 — Due to trust account and other short-term borrowings 27,278 27,278 — 27,278 — Long-term debt 24,418 23,958 — 23,958 — Other financial liabilities 8,192 8,192 — 8,192 — Notes: (1) Includes loans held for sale and collateral dependent loans measured at fair value on a nonrecurring basis. Refer to “Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis” for the details of the level classification. (2) Excludes investments in equity method investees of ¥4,116 billion and ¥4,197 billion at March 31, 2024 and September 30, 2024, respectively. The fair values of certain off-balance sheet financial instruments held for purposes other than trading, including commitments to extend credit and commercial letters of credit, are estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the credit quality. The aggregate fair value of such instruments at March 31, 2024 and September 30, 2024 was not material.

Investments in Equity Method In

Investments in Equity Method Investees	6 Months Ended
	Sep. 30, 2024
Equity Method Investments and Joint Ventures [Abstract]
Investments in Equity Method Investees	INVESTMENTS IN EQUITY METHOD INVESTEES Summarized Financial Information of the MUFG Group’s Equity Method Investee Summarized operating results of Morgan Stanley, the largest portion of the MUFG Group’s equity method investees, for the six months ended September 30, 2023 and 2024 are as follows: 2023 2024 (in billions) Net revenues ¥ 3,769 ¥ 4,640 Total non-interest expenses 2,887 3,351 Income from continuing operations before income taxes 840 1,266 Net income applicable to Morgan Stanley 647 956

Subsequent Events

Subsequent Events	6 Months Ended
	Sep. 30, 2024
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS Approval of Dividends On November 14, 2024, the Board of Directors of MUFG approved the payment of semi-annual interim cash dividends of ¥25.0 per share of Common stock, totaling ¥292,259 million, that were payable on December 5, 2024 to the shareholders of record on September 30, 2024. Repurchase and Cancellation of own shares At the meeting of the Board of Directors of MUFG held on November 14, 2024, it was resolved to repurchase up to 230,000,000 shares of MUFG’s common stock by market purchases based on the discretionary dealing contract regarding repurchase of its own shares for approximately ¥300 billion, in aggregate, from November 15, 2024 to March 31, 2025. The repurchase plan as authorized by the Board of Directors of MUFG allowed for the repurchase of an aggregate amount of up to 230,000,000 shares, which represents the equivalent of 2.0% of the total number of common shares outstanding excluding its own shares, or of an aggregate repurchase amount of up to ¥300 billion. The purpose of the repurchase is to enhance the return of earnings to shareholders, to improve capital efficiency, and to implement flexible capital policies. Also, on November 29, 2024, MUFG canceled 270,000,000 shares in satisfaction of the resolution adopted at the meeting of the Board of Directors of MUFG held on November 14, 2024.

Basis of Condensed Consolidat_2

Basis of Condensed Consolidated Financial Statements (Policies)	6 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Description of Business	Description of Business
Basis of Financial Statements	Basis of Financial Statements The accompanying condensed consolidated financial statements are presented in Japanese yen, the currency of the country in which MUFG is incorporated and principally operates. The accompanying condensed consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the United States of America (“U.S. GAAP”). In certain respects, the accompanying condensed consolidated financial statements reflect adjustments to conform with U.S. GAAP and therefore are not included in the consolidated financial statements issued by MUFG in accordance with accounting principles generally accepted in Japan (“Japanese GAAP”) and certain of its subsidiaries in accordance with the corresponding applicable statutory requirements and accounting practices in their respective countries of incorporation. The major adjustments include those relating to (1) investment securities, (2) derivative financial instruments, (3) allowance for credit losses, (4) income taxes, (5) consolidation, (6) premises and equipment, (7) transfer of financial assets, (8) accrued severance indemnities and pension liabilities, (9) goodwill and other intangible assets and (10) lease transactions. The accompanying condensed semiannual consolidated financial statements should be read in conjunction with the consolidated financial statements for the fiscal year ended March 31, 2024. Certain information that would be included in annual financial statements but is not required for reporting purposes under U.S. GAAP has been omitted or condensed. Fiscal years of certain subsidiaries, which end on December 31, and MUFG’s fiscal year, which ends on March 31, have been treated as coterminous. Effective April 1, 2024, the MUFG Group changed the fiscal year end of Krungsri’s financial statements consolidated to MUFG, from December 31 to March 31. The MUFG Group believes that this change in accounting principle is preferable as it provides investors with more timely and relevant financial information. We applied this change in accounting principle retrospectively to prior periods. Thus, the condensed consolidated financial statements for the six months ended September 30, 2023 and fiscal year ended March 31, 2024 were adjusted. The following table shows a summary of the adjustments of the condensed consolidated financial statements for the six months ended September 30, 2023 and fiscal year ended March 31, 2024.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Accounting Changes	Accounting Changes Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions —In June 2022, the Financial Accounting Standards Board (“FASB”) issued new guidance which clarifies the guidance when measuring the fair value of an equity security subject to contractual restrictions that prohibit the sale of an equity security. The guidance also introduces new disclosure requirements for equity securities subject to contractual sale restrictions that are measured at fair value. This guidance is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The MUFG Group adopted this guidance on April 1, 2024, and there was no material impact on its financial position and results of operations. See Note 18 for further details of disclosures required by this guidance.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Improvements to Reportable Segment Disclosures —In November 2023, the FASB issued new guidance which clarifies and enhances the requirements for reportable segment disclosures. This guidance requires additional reportable segment disclosures on an annual and interim basis, primarily about significant segment expenses and other segment items that are regularly provided to the chief operating decision maker and included within the reported measure of segment profit or loss. This guidance does not change how operating segments are identified or aggregated, or how quantitative thresholds are applied to determine the reportable segments. The guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The MUFG Group is currently evaluating what effect this guidance will have on its segment information disclosures.

Basis of Condensed Consolidat_3

Basis of Condensed Consolidated Financial Statements ( (Tables)	6 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Schedule of Prior Period Adjustments	The following table shows a summary of the adjustments of the condensed consolidated financial statements for the six months ended September 30, 2023 and fiscal year ended March 31, 2024. As of March 31, 2024 (in millions) As Previously Reported Adjustments As Adjusted ASSETS Cash and due from banks ¥ 4,391,530 ¥ 25,116 ¥ 4,416,646 Interest-earning deposits in other banks 105,631,633 70,344 105,701,977 Cash, due from banks and interest-earning deposits in other banks 110,023,163 95,460 110,118,623 Call loans, funds sold, and receivables under resale agreements 20,233,913 328,445 20,562,358 Receivables under securities borrowing transactions 5,000,989 (173) 5,000,816 Trading account assets 49,745,992 23,414 49,769,406 Investment securities: Available-for-sale debt securities 31,395,372 27,595 31,422,967 Equity securities 6,132,092 277 6,132,369 Total investment securities 62,371,426 27,872 62,399,298 Loans, net of unearned income, unamortized premiums and deferred loan fees 127,936,495 (26,192) 127,910,303 Allowance for credit losses (1,366,221) 9,260 (1,356,961) Net loans 126,570,274 (16,932) 126,553,342 Premises and equipment—net 873,027 (386) 872,641 Customers’ acceptance liability 430,221 4,851 435,072 Intangible assets—net 1,298,966 (1,206) 1,297,760 Goodwill 490,344 3,414 493,758 Other assets 20,398,146 (17,684) 20,380,462 Total assets ¥ 397,436,461 ¥ 447,075 ¥ 397,883,536 As of March 31, 2024 (in millions) As Previously Reported Adjustments As Adjusted LIABILITIES AND EQUITY Deposits: Overseas offices, principally interest-bearing 63,142,974 718,616 63,861,590 Total deposits 246,417,384 718,616 247,136,000 Call money, funds purchased, and payables under repurchase agreements 40,804,921 (20,298) 40,784,623 Payables under securities lending transactions 1,016,931 7 1,016,938 Due to trust account and other short-term borrowings 15,796,947 4,376 15,801,323 Trading account liabilities 16,587,151 (7,629) 16,579,522 Bank acceptances outstanding 430,221 4,851 435,072 Long-term debt 39,922,322 90,497 40,012,819 Other liabilities 17,983,371 (383,219) 17,600,152 Total liabilities 378,959,248 407,201 379,366,449 Commitments and contingent liabilities Mitsubishi UFJ Financial Group shareholders’ equity: Capital surplus 4,636,097 (205) 4,635,892 Retained earnings: Unappropriated retained earnings 9,072,572 13,918 9,086,490 Accumulated other comprehensive income, net of taxes 2,221,263 16,362 2,237,625 Total Mitsubishi UFJ Financial Group shareholders’ equity 17,645,662 30,075 17,675,737 Noncontrolling interests 831,551 9,799 841,350 Total equity 18,477,213 39,874 18,517,087 Total liabilities and equity ¥ 397,436,461 ¥ 447,075 ¥ 397,883,536 Six months ended September 30, 2023 (in millions) As Previously Reported Adjustments As Adjusted Interest income: Loans, including fees ¥ 2,011,363 ¥ 30,127 ¥ 2,041,490 Deposits in other banks 355,192 893 356,085 Investment securities 355,121 657 355,778 Trading account assets 360,921 40 360,961 Call loans, funds sold, and receivables under resale agreements and securities borrowing transactions 193,947 2,524 196,471 Total 3,276,544 34,241 3,310,785 Interest expense: Deposits 1,142,035 6,043 1,148,078 Call money, funds purchased, and payables under repurchase agreements and securities lending transactions 461,932 362 462,294 Due to trust account, other short-term borrowings and trading account liabilities 174,949 3,854 178,803 Long-term debt 252,757 2,406 255,163 Total 2,031,673 12,665 2,044,338 Net interest income 1,244,871 21,576 1,266,447 Provision for credit losses 61,772 10,140 71,912 Net interest income after provision for credit losses 1,183,099 11,436 1,194,535 Non-interest income: Fees and commissions income 881,258 4,972 886,230 Foreign exchange losses—net (329,089) 4,238 (324,851) Trading account losses—net (940,660) (4,722) (945,382) Investment securities gains—net 743,395 2,683 746,078 Equity in earnings of equity method investees—net 214,835 214 215,049 Other non-interest income 86,876 288 87,164 Total 656,615 7,673 664,288 Non-interest expense: Salaries and employee benefits 623,877 4,888 628,765 Occupancy expenses—net 76,784 892 77,676 Fees and commissions expenses 189,657 515 190,172 Outsourcing expenses, including data processing 162,312 (488) 161,824 Depreciation of premises and equipment 35,813 379 36,192 Amortization of intangible assets 141,668 603 142,271 Insurance premiums, including deposit insurance 44,684 378 45,062 Communications 29,391 340 29,731 Taxes and public charges 52,467 1,165 53,632 Reversal of off-balance sheet credit instruments (3,646) (355) (4,001) Other non-interest expenses 202,385 6,489 208,874 Total 1,555,392 14,806 1,570,198 Income before income tax expense 284,322 4,303 288,625 Income tax expense 15,864 800 16,664 Net income before attribution of noncontrolling interests 268,458 3,503 271,961 Net income attributable to noncontrolling interests 37,677 411 38,088 Net income attributable to Mitsubishi UFJ Financial Group ¥ 230,781 ¥ 3,092 ¥ 233,873 Six months ended September 30, 2023 (in millions) As Previously Reported Adjustments As Adjusted Income used for the computation of basic EPS and diluted EPS (Numerator): Net income attributable to Mitsubishi UFJ Financial Group ¥ 230,781 ¥ 3,092 ¥ 233,873 Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions ¥ 229,329 ¥ 3,092 ¥ 232,421 Six months ended September 30, 2023 (in Yen) As Previously Reported Adjustments As Adjusted Earnings per common share applicable to common shareholders of Mitsubishi UFJ Financial Group Basic earnings per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group ¥ 19.17 ¥ 0.26 ¥ 19.43 Diluted earnings per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group 19.05 0.26 19.31 Six months ended September 30, 2023 (in millions) As Previously Reported Adjustments As Adjusted Net income before attribution of noncontrolling interests ¥ 268,458 ¥ 3,503 ¥ 271,961 Other comprehensive income, net of tax: Net unrealized losses on investment securities (162,130) (606) (162,736) Net unrealized gains on derivatives qualifying for cash flow hedges 15 1,389 1,404 Defined benefit plans 48,965 19 48,984 Foreign currency translation adjustments 1,050,954 (27,419) 1,023,535 Total 915,544 (26,617) 888,927 Comprehensive income 1,184,002 (23,114) 1,160,888 Net income attributable to noncontrolling interests 37,677 411 38,088 Other comprehensive income attributable to noncontrolling interests 74,729 (6,619) 68,110 Comprehensive income attributable to Mitsubishi UFJ Financial Group ¥ 1,071,596 ¥ (16,906) ¥ 1,054,690 Six months ended September 30, 2023 (in millions, except per share amount) As Previously Reported Adjustments As Adjusted Capital surplus: Other—net (467) (1) (468) Balance at end of period ¥ 4,895,005 (1) ¥ 4,895,004 Unappropriated retained earnings: Balance at beginning of period ¥ 8,169,710 16,170 ¥ 8,185,880 Net income attributable to Mitsubishi UFJ Financial Group 230,781 3,092 233,873 Balance at end of period ¥ 8,221,772 19,262 ¥ 8,241,034 Accumulated other comprehensive income, net of taxes: Balance at beginning of period ¥ 844,192 26,862 ¥ 871,054 Net change during the period 840,815 (19,998) 820,817 Balance at end of period ¥ 1,685,007 6,864 ¥ 1,691,871 Six months ended September 30, 2023 (in millions, except per share amount) As Previously Reported Adjustments As Adjusted Total Mitsubishi UFJ Financial Group shareholders’ equity ¥ 16,650,388 ¥ 26,125 ¥ 16,676,513 Noncontrolling interests: Balance at beginning of period ¥ 702,821 ¥ 14,398 ¥ 717,219 Initial subscriptions of noncontrolling interests 34,317 (98) 34,219 Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders (16,734) (1) (16,735) Net income attributable to noncontrolling interests 37,677 411 38,088 Dividends paid to noncontrolling interests (17,351) (6) (17,357) Other comprehensive income, net of taxes 74,729 (6,619) 68,110 Other—net (231) 45 (186) Balance at end of period ¥ 807,006 ¥ 8,130 ¥ 815,136 Total equity ¥ 17,457,394 ¥ 34,255 ¥ 17,491,649 Six months ended September 30, 2023 (in millions) As Previously Reported Adjustments As Adjusted Cash flows from operating activities: Net income before attribution of noncontrolling interests ¥ 268,458 ¥ 3,503 ¥ 271,961 Adjustments to reconcile net income before attribution of noncontrolling interests to net cash provided by operating activities: Depreciation and amortization 177,481 982 178,463 Provision for credit losses 61,772 10,140 71,912 Investment securities gains—net (743,395) (2,683) (746,078) Foreign exchange losses—net 484,560 34,103 518,663 Equity in earnings of equity method investees—net (214,835) (214) (215,049) Benefit for deferred income tax expense (200,007) 525 (199,482) Increase in trading account assets, excluding foreign exchange contracts (4,405,363) 1,330 (4,404,033) Increase in trading account liabilities, excluding foreign exchange contracts 4,082,033 12,266 4,094,299 Increase in accrued interest receivable and other receivables (138,342) (47,922) (186,264) Decrease in accrued interest payable and other payables (663,358) 18,721 (644,637) Net decrease in accrued income taxes and increase in income tax receivables (38,880) (16,170) (55,050) Net increase in collateral for derivative transactions (737,229) (18,343) (755,572) Other—net (15,161) 185,998 170,837 Net cash used in operating activities (2,082,266) 182,236 (1,900,030) Cash flows from investing activities: Proceeds from sales of Available-for-sale debt securities 35,278,674 899 35,279,573 Proceeds from maturities of Available-for-sale debt securities 15,222,492 (3,051) 15,219,441 Purchases of Available-for-sale debt securities (42,823,777) (19,890) (42,843,667) Proceeds from sales and redemption of Equity securities 1,193,033 (478) 1,192,555 Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of Krungsri, net of cash acquired (55,868) (8,236) (64,104) Purchases of Equity securities (including purchases of equity securities under the fair value option) (1,351,798) 1,563 (1,350,235) Net decrease in loans 1,252,246 122,039 1,374,285 Net increase in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions (2,635,756) 214,141 (2,421,615) Capital expenditures for premises and equipment (47,932) 82 (47,850) Purchases of intangible assets (152,072) (873) (152,945) Other—net (31,191) 15,726 (15,465) Net cash provided by investing activities 3,487,317 321,922 3,809,239 Cash flows from financing activities: Net increase in deposits 2,421,039 (294,071) 2,126,968 Net decrease in call money, funds purchased, and payables under repurchase agreements and securities lending transactions (9,771,370) 8,765 (9,762,605) Net decrease in due to trust account and other short-term borrowings (521,193) 45,613 (475,580) Proceeds from issuance of long-term debt 2,022,741 (10,296) 2,012,445 Repayments of long-term debt (2,021,065) (1,556) (2,022,621) Other—net (43,203) (503) (43,706) Net cash used in financing activities (8,103,928) (252,048) (8,355,976) Effect of exchange rate changes on cash and cash equivalents 1,569,102 (9,356) 1,559,746 Net decrease in cash and cash equivalents (5,129,775) 242,754 (4,887,021) Cash and cash equivalents at beginning of period 114,044,090 (86,645) 113,957,445 Cash and cash equivalents: Cash, due from banks and interest-earning deposits in other banks 108,911,256 156,109 109,067,365 Cash and cash equivalents at end of period ¥ 108,914,315 ¥ 156,109 ¥ 109,070,424 Supplemental disclosure of cash flow information: Cash paid during the period for: Interest ¥ 1,983,677 ¥ 4,642 ¥ 1,988,319 Income taxes, net of refunds 254,751 16,445 271,196 Non-cash investing and financing activities: Assets acquired under finance lease arrangements 5,022 4,598 9,620 Assets acquired under operating lease arrangements 22,905 (40) 22,865 Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK Fair value of assets acquired, excluding cash and cash equivalents 151,231 8,100 159,331

Business Developments (Tables)

Business Developments (Tables)	6 Months Ended
	Sep. 30, 2024
Business Combinations [Abstract]
Pro forma statements of operations	The following unaudited pro forma statements of income present the results of income as if the acquisition of MPMS had occurred on April 1, 2023: Six months ended September 30, 2023 2024 (in millions) Statements of income data Total revenue ¥ 74,696 ¥ 58,886 Net income attributable to Mitsubishi UFJ Financial Group ¥ 19,964 ¥ 4,678

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Amortized Costs Gross Unrealized Gain Loss and Estimated Fair Values	The following tables present the amortized cost, gross unrealized gains and losses, and fair value of Available-for-sale debt securities and Held-to-maturity debt securities at March 31, 2024 and September 30, 2024: At March 31, 2024 (As Adjusted): Amortized cost Gross unrealized gains Gross unrealized losses Fair value (in millions) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 23,287,730 ¥ 5,768 ¥ 126,098 ¥ 23,167,400 Japanese prefectural and municipal bonds 1,055,564 227 9,800 1,045,991 Foreign government and official institution bonds 3,428,199 4,981 130,629 3,302,551 Corporate bonds 1,019,832 10,685 4,049 1,026,468 Residential mortgage-backed securities 1,229,615 255 345 1,229,525 Asset-backed securities 1,239,772 9,251 1,877 1,247,146 Other debt securities 407,917 3,419 7,450 403,886 Total ¥ 31,668,629 ¥ 34,586 ¥ 280,248 ¥ 31,422,967 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 15,191,741 ¥ 4,745 ¥ 97,603 ¥ 15,098,883 Japanese prefectural and municipal bonds 1,999,182 2,048 16,328 1,984,902 Corporate bonds 119,490 93 179 119,404 Residential mortgage-backed securities 4,952,083 3,153 179,537 4,775,699 Asset-backed securities 2,581,466 3,681 6,521 2,578,626 Total ¥ 24,843,962 ¥ 13,720 ¥ 300,168 ¥ 24,557,514 At September 30, 2024: Amortized Gross unrealized gains Gross unrealized losses Fair value (in millions) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 18,761,335 ¥ 10,245 ¥ 131,338 ¥ 18,640,242 Japanese prefectural and municipal bonds 871,795 11 11,188 860,618 Foreign government and official institution bonds 3,487,233 16,365 73,603 3,429,995 Corporate bonds 937,702 9,761 5,440 942,023 Residential mortgage-backed securities 1,173,805 266 314 1,173,757 Asset-backed securities 1,402,431 10,739 515 1,412,655 Other debt securities 501,639 5,326 3,429 503,536 Total ¥ 27,135,940 ¥ 52,713 ¥ 225,827 ¥ 26,962,826 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 13,842,654 ¥ 14,647 ¥ 133,864 ¥ 13,723,437 Japanese prefectural and municipal bonds 2,216,346 987 23,987 2,193,346 Corporate bonds 191,305 157 544 190,918 Residential mortgage-backed securities 4,670,796 29,014 81,381 4,618,429 Asset-backed securities 1,818,347 5,364 1,208 1,822,503 Total ¥ 22,739,448 ¥ 50,169 ¥ 240,984 ¥ 22,548,633
Amortized Cost and Fair Value by Contractual Maturity	Debt securities not due at a single maturity date and securities embedded with call or prepayment options, such as mortgage-backed securities, are included in the table below based on their contractual maturities. Held-to-maturity debt securities Available-for-sale debt securities Amortized Fair value Fair value (in millions) Due in one year or less ¥ 2,484,027 ¥ 2,481,938 ¥ 16,621,054 Due from one year to five years 8,156,136 8,089,148 5,235,427 Due from five years to ten years 6,548,526 6,475,490 2,182,338 Due after ten years 5,550,759 5,502,057 2,924,007 Total ¥ 22,739,448 ¥ 22,548,633 ¥ 26,962,826
Investments by Length and Category in Continuous Loss Position	The following tables show the gross unrealized losses and fair value of Available-for-sale debt securities at March 31, 2024 and September 30, 2024 by length of time that individual securities in each category have been in a continuous loss position: Less than 12 months 12 months or more Total At March 31, 2024 (As Adjusted): Fair value Gross Fair value Gross Fair value Gross Number of securities (in millions, except number of securities) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 18,640,364 ¥ 9,427 ¥ 1,756,792 ¥ 116,671 ¥ 20,397,156 ¥ 126,098 440 Japanese prefectural and municipal bonds 416,047 1,502 520,133 8,298 936,180 9,800 574 Foreign government and official institution bonds 358,973 9,306 1,942,369 121,323 2,301,342 130,629 97 Corporate bonds 167,004 467 442,274 3,582 609,278 4,049 309 Residential mortgage-backed securities 185,197 14 343,621 331 528,818 345 14 Asset-backed securities 23,810 9 160,109 1,868 183,919 1,877 17 Other debt securities 202,787 54 64,908 7,396 267,695 7,450 56 Total ¥ 19,994,182 ¥ 20,779 ¥ 5,230,206 ¥ 259,469 ¥ 25,224,388 ¥ 280,248 1,507 Less than 12 months 12 months or more Total At September 30, 2024: Fair value Gross Fair value Gross Fair value Gross Number of (in millions, except number of securities) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥12,386,848 ¥ 5,407 ¥ 1,757,038 ¥ 125,931 ¥ 14,143,886 ¥ 131,338 417 Japanese prefectural and municipal bonds 167,167 610 672,133 10,578 839,300 11,188 529 Foreign government and official institution bonds 255,136 2,852 1,765,019 70,751 2,020,155 73,603 83 Corporate bonds 150,753 1,119 459,710 4,321 610,463 5,440 369 Residential mortgage-backed securities 207,273 15 326,360 299 533,633 314 15 Asset-backed securities 118,095 285 45,666 230 163,761 515 19 Other debt securities 362,704 321 50,322 3,108 413,026 3,429 93 Total ¥ 13,647,976 ¥ 10,609 ¥ 5,076,248 ¥ 215,218 ¥ 18,724,224 ¥ 225,827 1,525
Net Realized Gains (Losses) on Sales of Equity Securities and Net Unrealized Gains (Losses) on Equity Securities Still Held at the Reporting Date	The following table presents net realized gains (losses) on sales of equity securities, and net unrealized gains (losses) on equity securities still held at September 30, 2023 and 2024. Six months ended 2023 2024 (in millions) Net gains (losses) recognized during the period (1) ¥ 689,090 ¥ (474,755) Less: Net gains (losses) recognized during the period on equity securities sold during the period 19,247 (97,385) Net unrealized gains (losses) recognized during the reporting period still held at the reporting date ¥ 669,843 ¥ (377,370) Note: (1) Included in Investment securities gains (losses)—net.
Carrying Value of Nonmarketable Equity Securities	The following table presents the carrying value of nonmarketable equity securities that are measured at cost minus impairment, if any, plus or minus changes resulting from observable price changes (“measurement alternative”), held at March 31, 2024 and September 30, 2024. March 31, September 30, (in millions) Measurement alternative balance ¥ 483,218 ¥ 571,434
Related Adjustments for Nonmarketable Equity Securities	The related adjustments for these securities during the six months ended September 30, 2023 and 2024 were as follows: Six months ended 2023 2024 (in millions) Measurement alternative impairment losses (1)(4) ¥ (8,187) ¥ (14,782) Measurement alternative downward changes for observable prices (1)(2)(3)(5) ¥ (1,567) ¥ — Measurement alternative upward changes for observable prices (1)(2)(3)(6) ¥ 783 ¥ 6,309 Notes: (1) Included in Investment securities gains (losses)—net. (2) Under the measurement alternative, nonmarketable equity securities are carried at cost plus or minus changes resulting from observable prices in orderly transactions for the identical or a similar investment of the same issuer. (3) The MUFG Group applied measurement alternative downward or upward changes to certain nonmarketable equity securities, resulting from observable prices in orderly transactions, such as partial repurchase and transactions by other entities. (4) The cumulative impairment losses at March 31, 2024 and September 30, 2024 were ¥29,569 million and ¥43,714 million, respectively. (5) The cumulative downward changes for observable prices at March 31, 2024 and September 30, 2024 were ¥2,961 million and ¥2,961 million, respectively. (6) The cumulative upward changes for observable prices at March 31, 2024 and September 30, 2024 were ¥58,104 million and ¥64,386 million, respectively.

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	6 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Ages of Past Due Loans by Class	The table below presents total outstanding loans and past due analysis by class at March 31, 2024 and September 30, 2024. Past Due At March 31, 2024 1-3 months Greater Total Current Loans Total Past Due 90 Days and (in millions) Commercial Domestic ¥ 6,108 ¥ 8,289 ¥ 14,397 ¥ 57,371,397 ¥ 112,496 ¥ 57,498,290 ¥ 3,004 Foreign 1,447 27,517 28,964 46,483,163 841,088 47,353,215 13,307 Residential 33,943 11,980 45,923 12,451,455 — 12,497,378 3,837 Card 15,790 28,388 44,178 440,672 — 484,850 — Krungsri 247,919 189,558 437,477 8,349,705 17,930 8,805,112 — Other 23,125 28,553 51,678 1,706,489 — 1,758,167 — Total ¥ 328,332 ¥ 294,285 ¥ 622,617 ¥ 126,802,881 ¥ 971,514 ¥ 128,397,012 ¥ 20,148 Unearned income, unamortized premiums—net and deferred loan fees—net (486,709) Total ¥ 127,910,303 Past Due At September 30, 2024: 1-3 months Greater Total Current Loans Total Past Due 90 Days and Accruing (in millions) Commercial Domestic ¥ 9,373 ¥ 8,091 ¥ 17,464 ¥ 62,023,862 ¥ 139,218 ¥ 62,180,544 ¥ 3,441 Foreign 684 24,115 24,799 43,813,774 797,689 44,636,262 5,176 Residential 32,170 10,943 43,113 12,377,924 — 12,421,037 3,384 Card 15,590 29,151 44,741 440,138 — 484,879 — Krungsri 232,459 236,768 469,227 8,535,220 11,285 9,015,732 — Other 25,262 33,647 58,909 1,933,190 — 1,992,099 — Total ¥ 315,538 ¥ 342,715 ¥ 658,253 ¥ 129,124,108 ¥ 948,192 ¥ 130,730,553 ¥ 12,001 Unearned income, unamortized premiums—net and deferred loan fees—net (485,190) Total ¥ 130,245,363
Nonaccrual Loans by Class	The information on nonaccrual loans by class at March 31, 2024 and September 30, 2024 are shown below: Recorded Loan Balance March 31, 2024 (As Adjusted): Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) (in millions) Commercial Domestic ¥ 295,055 ¥ 89,994 Foreign 225,572 59,564 Residential 41,101 4,067 Card 72,554 — Krungsri 258,511 7,159 Other 33,782 16 Total ¥ 926,575 ¥ 160,800 Recorded Loan Balance September 30, 2024: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) (in millions) Commercial Domestic ¥ 305,247 ¥ 84,885 Foreign 258,095 41,402 Residential 38,259 4,234 Card 74,639 — Krungsri 313,619 10,004 Other 37,444 9 Total ¥ 1,027,303 ¥ 140,534 Notes: (1) Nonaccrual loans in the above table do not include loans held for sale of ¥396,331 million and ¥326,801 million at March 31, 2024 and September 30, 2024, respectively. (2) These loans do not require an allowance for credit losses because the recorded loan balance equals, or does not exceed, the present value of expected future cash flows discounted at the loans’ effective interest rate, or the fair value of the collateral if the loan is a collateral-dependent loan. The following table shows information regarding recognized interest income on nonaccrual loans for the six months ended September 30, 2023 and 2024: September 30, September 30, 2024 (in millions) Commercial Domestic ¥ 2,209 ¥ 2,121 Foreign 3,534 5,026 Residential 276 237 Card 8 14 Krungsri 5,225 7,585 Other 1,549 1,644 Total ¥ 12,801 ¥ 16,627
TDRs by Class	The following table summarizes the MUFG Group’s loan modifications that were made to borrowers experiencing financial difficulty by class for the six months ended September 30, 2023 and 2024: Six months ended September 30, 2023 (As Adjusted): Loan Modifications Made to Borrowers Experiencing Financial Difficulty Loans Modified within 12 months of Subsequent Default Amortized Cost Basis at the Period End Percentage of Total Class of Loans Amortized Cost Basis at the Period End (in millions, except percentages) Commercial (1) Domestic Interest rate reduction ¥ 2,909 0.01 % ¥ — Term extension 146,968 0.27 2,676 Combination of interest rate reduction and term extension 4,774 0.01 — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Foreign Interest rate reduction ¥ — — % ¥ — Term extension 101,054 0.22 — Combination of interest rate reduction and term extension — — — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Residential (1) Interest rate reduction ¥ — — % ¥ — Term extension 8,491 0.07 60 Combination of interest rate reduction and term extension — — — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Card (2) Interest rate reduction ¥ — — % ¥ — Term extension — — — Combination of interest rate reduction and term extension 12,480 2.61 1,472 Combination of term extension and principal forgiveness 121 0.03 1 All other modifications and combinations — — — Krungsri (2) Interest rate reduction ¥ 329 0.00 % ¥ 52 Term extension 174,300 1.99 3,095 Combination of interest rate reduction and term extension 992 0.01 85 Combination of term extension and principal forgiveness 261 0.00 4,072 All other modifications and combinations 919 0.01 48 Other (2) Interest rate reduction ¥ 250 0.01 % ¥ 185 Term extension 1,569 0.09 290 Combination of interest rate reduction and term extension 149 0.01 — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Six months ended September 30, 2024: Loan Modifications Made to Borrowers Experiencing Financial Difficulty Loans Modified within 12 months of Subsequent Default Amortized Cost Basis at the Period End Percentage of Total Class of Loans Amortized Cost Basis at the Period End (in millions, except percentages) Commercial (1) Domestic Interest rate reduction ¥ 530 0.00 % ¥ — Term extension 162,309 0.26 3,216 Combination of interest rate reduction and term extension 3,864 0.01 — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Foreign Interest rate reduction ¥ — — % ¥ — Term extension 74,732 0.17 — Combination of interest rate reduction and term extension — — — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Residential (1) Interest rate reduction ¥ — — % ¥ — Term extension 6,137 0.05 180 Combination of interest rate reduction and term extension — — — Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Card (2) Interest rate reduction ¥ — — % ¥ — Term extension — — — Combination of interest rate reduction and term extension 12,828 2.65 1,541 Combination of term extension and principal forgiveness 126 0.03 2 All other modifications and combinations — — — Krungsri (2) Interest rate reduction ¥ 466 0.01 % ¥ 4 Term extension 143,449 1.59 4,495 Combination of interest rate reduction and term extension 2,613 0.03 105 Combination of term extension and principal forgiveness 1,558 0.02 40 All other modifications and combinations 867 0.01 2 Other (2) Interest rate reduction ¥ 831 0.04 % ¥ — Term extension 6,626 0.33 1,121 Combination of interest rate reduction and term extension — — 4 Combination of term extension and principal forgiveness — — — All other modifications and combinations — — — Notes: (1) The modified loans for the Commercial and Residential segments include accruing loans, and do not include nonaccrual loans. (2) The modified loans for the Card, Krungsri and Other segments include accrual and nonaccrual loans. The following table provides the financial effect of the modifications made to borrowers experiencing financial difficulty by class for the six months ended September 30, 2023 and 2024: Six months ended September 30, 2023 Financial Effect Commercial Domestic Interest rate reduction Reduced weighted-average contractual interest rate by 0.06%. Term extension Added a weighted-average 0.8 years to the life of loans. Foreign Term extension Added a weighted-average 0.5 years to the life of loans. Residential Term extension Added a weighted-average 1.3 years to the life of loans. Card Interest rate reduction Reduced weighted-average contractual interest rate by 15.24%. Term extension Added a weighted-average 3.0 years to the life of loans. Principal forgiveness Reduced the principal balance of the loans by ¥404 million. Krungsri Interest rate reduction Reduced weighted-average contractual interest rate by 1.29%. Term extension Added a weighted-average 1.7 years to the life of loans. Principal forgiveness Reduced the principal balance of the loans by ¥563 million. Other Interest rate reduction Reduced weighted-average contractual interest rate by 3.40%. Term extension Added a weighted-average 3.0 years to the life of loans. Six months ended September 30, 2024: Financial Effect Commercial Domestic Interest rate reduction Reduced weighted-average contractual interest rate by 0.16%. Term extension Added a weighted-average 0.8 years to the life of loans. Foreign Term extension Added a weighted-average 0.6 years to the life of loans. Residential Term extension Added a weighted-average 1.2 years to the life of loans. Card Interest rate reduction Reduced weighted-average contractual interest rate by 15.22%. Term extension Added a weighted-average 3.0 years to the life of loans. Principal forgiveness Reduced the principal balance of the loans by ¥431 million. Krungsri Interest rate reduction Reduced weighted-average contractual interest rate by 1.79%. Term extension Added a weighted-average 3.6 years to the life of loans. Principal forgiveness Reduced the principal balance of the loans by ¥658 million. Other Interest rate reduction Reduced weighted-average contractual interest rate by 8.30%. Term extension Added a weighted-average 1.0 year to the life of loans. The following table provides the performance of loans that have been modified in the last 12 months to borrowers experiencing financial difficulty by class for the six months ended September 30, 2023 and 2024: Six months ended September 30, 2023 (As Adjusted): Payment Status (Amortized Cost Basis at the Period End) Current 1-3 months Past Due Greater Than 3 months Past Due (in millions) Commercial (1) Domestic ¥ 266,915 ¥ 305 ¥ 470 Foreign 108,618 — — Residential (1) 16,094 948 214 Card (2) 16,816 4,270 1,973 Krungsri (2) 283,343 14,007 11,654 Other (2) 4,068 591 188 Total ¥ 695,854 ¥ 20,121 ¥ 14,499 Six months ended September 30, 2024: Payment Status (Amortized Cost Basis at the Period End) Current 1-3 months Past Due Greater Than 3 months Past Due (in millions) Commercial (1) Domestic ¥ 324,632 ¥ 100 ¥ 62 Foreign 90,234 — — Residential (1) 11,403 603 121 Card (2) 18,127 4,034 2,005 Krungsri (2) 215,377 25,118 25,376 Other (2) 7,371 3,414 1,039 Total ¥ 667,144 ¥ 33,269 ¥ 28,603 Notes: (1) The modified loans for the Commercial and Residential segments include accruing loans, and do not include nonaccrual loans. (2) The modified loans for the Card, Krungsri and Other segments include accrual and nonaccrual loans.
Credit Quality Indicators of Loans by Class	Credit quality indicators of loans and fiscal year of origination by class at March 31, 2024, and gross charge-offs for the fiscal year ended March 31, 2024 are shown below: Term Loans Revolving Revolving Total (1) At March 31, 2024 2023 2022 2021 2020 2019 Prior (in millions) Commercial: ¥ 36,089,439 ¥ 13,326,456 ¥ 7,110,866 ¥ 5,965,489 ¥ 4,197,181 ¥ 9,777,389 ¥ 27,367,612 ¥ 63,489 ¥ 103,897,921 Domestic 20,392,832 7,709,706 4,897,276 5,099,173 3,195,961 7,915,170 8,175,676 — 57,385,794 Normal 20,168,687 7,567,872 4,700,171 4,955,680 3,058,292 7,289,232 7,918,471 — 55,658,405 Close Watch 212,521 132,768 182,359 120,759 91,961 524,833 242,574 — 1,507,775 Likely to become Bankrupt or Legally/Virtually Bankrupt 11,624 9,066 14,746 22,734 45,708 101,105 14,631 — 219,614 Gross charge-offs 2,478 26,192 1,379 2,669 9,904 8 — — 42,630 Foreign 15,696,607 5,616,750 2,213,590 866,316 1,001,220 1,862,219 19,191,936 63,489 46,512,127 Normal 15,305,350 5,445,830 2,166,976 827,405 877,978 1,680,485 18,889,310 60,877 45,254,211 Close Watch 330,450 142,807 41,638 23,625 110,527 129,927 269,944 — 1,048,918 Likely to become Bankrupt or Legally/Virtually Bankrupt 60,807 28,113 4,976 15,286 12,715 51,807 32,682 2,612 208,998 Gross charge-offs 9,301 8,575 1,057 794 174 130 10,131 — 30,162 Residential ¥ 668,170 ¥ 659,156 ¥ 714,292 ¥ 573,679 ¥ 864,058 ¥ 8,997,473 ¥ 20,550 ¥ — ¥ 12,497,378 Accrual 668,118 658,831 714,154 573,444 863,432 8,959,995 18,891 — 12,456,865 Nonaccrual 52 325 138 235 626 37,478 1,659 — 40,513 Gross charge-offs — — 2 6 28 1,253 — — 1,289 Card ¥ 21 ¥ 181 ¥ 224 ¥ 269 ¥ 207 ¥ 638 ¥ 409,416 ¥ 73,894 ¥ 484,850 Accrual — 10 7 7 9 34 396,746 15,483 412,296 Nonaccrual 21 171 217 262 198 604 12,670 58,411 72,554 Gross charge-offs 18 63 100 112 97 117 9,712 10,801 21,020 Krungsri ¥ 2,133,219 ¥ 1,481,834 ¥ 811,883 ¥ 401,052 ¥ 431,766 ¥ 768,770 ¥ 2,741,676 ¥ 16,982 ¥ 8,787,182 Performing 1,986,177 1,319,372 685,123 337,985 330,511 578,608 2,578,069 — 7,815,845 Under-Performing 110,487 108,846 86,273 49,140 80,033 141,150 136,897 — 712,826 Non-Performing 36,555 53,616 40,487 13,927 21,222 49,012 26,710 16,982 258,511 Gross charge-offs 8,765 55,828 34,544 12,995 15,439 19,729 30,709 2,632 180,641 Other ¥ 749,054 ¥ 296,723 ¥ 94,173 ¥ 45,408 ¥ 26,103 ¥ 87,724 ¥ 458,982 ¥ — ¥ 1,758,167 Accrual 743,600 291,516 92,176 44,523 24,642 82,574 445,355 — 1,724,386 Nonaccrual 5,454 5,207 1,997 885 1,461 5,150 13,627 — 33,781 Gross charge-offs 4,815 15,962 6,212 1,810 785 3,036 6,013 — 38,633 Credit quality indicators of loans and fiscal year of origination by class at September 30, 2024, and gross charge-offs for the six months ended September 30, 2024 are shown below: Term Loans Revolving Revolving Total (1) At September 30, 2024: 2024 2023 2022 2021 2020 Prior (in millions) Commercial: ¥ 26,191,966 ¥ 18,731,354 ¥ 11,345,368 ¥ 5,779,064 ¥ 5,072,732 ¥ 11,714,913 ¥ 26,980,476 ¥ 64,026 ¥ 105,879,899 Domestic 19,422,041 8,755,355 6,865,865 4,297,863 4,468,287 9,564,233 8,667,682 — 62,041,326 Normal 19,317,740 8,574,120 6,726,304 4,093,158 4,313,060 8,887,916 8,447,688 — 60,359,986 Close Watch 65,061 174,201 107,633 191,545 134,305 564,721 208,663 — 1,446,129 Likely to become Bankrupt or Legally/Virtually Bankrupt 39,240 7,034 31,928 13,160 20,922 111,596 11,331 — 235,211 Gross charge-offs 862 2,055 589 332 191 1,780 211 — 6,020 Foreign 6,769,925 9,975,999 4,479,503 1,481,201 604,445 2,150,680 18,312,794 64,026 43,838,573 Normal 6,690,117 9,654,989 4,297,828 1,447,782 579,913 1,904,520 17,985,700 61,854 42,622,703 Close Watch 59,543 216,179 153,292 33,419 13,820 190,536 306,324 — 973,113 Likely to become Bankrupt or Legally/Virtually Bankrupt 20,265 104,831 28,383 — 10,712 55,624 20,770 2,172 242,757 Gross charge-offs 84 255 1,632 2,507 — — 7,687 — 12,165 Residential ¥ 474,295 ¥ 651,183 ¥ 640,862 ¥ 692,280 ¥ 554,851 ¥ 9,388,304 ¥ 19,262 ¥ — ¥ 12,421,037 Accrual 474,221 651,131 640,544 692,025 554,606 9,352,910 17,847 — 12,383,284 Nonaccrual 74 52 318 255 245 35,394 1,415 — 37,753 Gross charge-offs — — 5 32 — 38 — — 75 Card ¥ — ¥ 82 ¥ 208 ¥ 296 ¥ 270 ¥ 749 ¥ 406,304 ¥ 76,970 ¥ 484,879 Accrual — 3 5 9 8 35 393,880 16,300 410,240 Nonaccrual — 79 203 287 262 714 12,424 60,670 74,639 Gross charge-offs — 28 85 56 81 116 4,855 6,063 11,284 Krungsri ¥ 928,828 ¥ 1,836,210 ¥ 1,249,486 ¥ 698,095 ¥ 302,590 ¥ 1,072,009 ¥ 2,895,885 ¥ 21,344 ¥ 9,004,447 Performing 844,687 1,631,629 1,084,838 577,836 243,477 780,640 2,673,984 7 7,837,098 Under-Performing 74,026 143,796 114,958 80,762 44,511 215,623 180,054 — 853,730 Non-Performing 10,115 60,785 49,690 39,497 14,602 75,746 41,847 21,337 313,619 Gross charge-offs 316 19,866 32,303 13,408 4,227 12,068 15,920 2,922 101,030 Other ¥ 498,369 ¥ 517,076 ¥ 255,062 ¥ 70,049 ¥ 42,070 ¥ 108,806 ¥ 500,667 ¥ — ¥ 1,992,099 Accrual 497,934 506,826 250,915 68,607 41,119 101,731 487,523 — 1,954,655 Nonaccrual 435 10,250 4,147 1,442 951 7,075 13,144 — 37,444 Gross charge-offs 659 14,191 6,386 1,898 215 1,303 3,151 — 27,803 Note: (1) Total loans in the above table do not include loans held for sale, and represent balances without adjustments in relation to unearned income, unamortized premiums and deferred loan fees.
Changes in Allowance for Credit Losses by Portfolio Segment	Changes in the allowance for credit losses of loans by portfolio segment for the six months ended September 30, 2023 and 2024 are shown below: Six months ended September 30, 2023 Commercial Residential Card Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 719,589 ¥ 59,747 ¥ 42,469 ¥ 364,647 ¥ 93,062 ¥ 1,279,514 Provision for (reversal of) credit losses (17,974) 433 10,255 57,443 21,755 71,912 Charge-offs 36,943 459 10,158 69,152 15,929 132,641 Recoveries collected 9,720 2 393 15,931 8,491 34,537 Net charge-offs 27,223 457 9,765 53,221 7,438 98,104 Other (1)(2) 1,580 — (7,666) 38,096 11,159 43,169 Balance at end of period ¥ 675,972 ¥ 59,723 ¥ 35,293 ¥ 406,965 ¥ 118,538 ¥ 1,296,491 Six months ended September 30, 2024: Commercial Residential Card Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 745,514 ¥ 56,964 ¥ 36,423 ¥ 405,211 ¥ 112,849 ¥ 1,356,961 Provision for (reversal of) credit losses 14,650 (2,408) 13,895 76,414 26,033 128,584 Charge-offs 18,185 75 11,284 101,030 27,803 158,377 Recoveries collected 5,759 5 512 18,452 6,967 31,695 Net charge-offs 12,426 70 10,772 82,578 20,836 126,682 Other (1) (16,651) — — 19,772 8,820 11,941 Balance at end of period ¥ 731,087 ¥ 54,486 ¥ 39,546 ¥ 418,819 ¥ 126,866 ¥ 1,370,804 Notes: (1) Other is principally comprised of gains or losses from foreign exchange translation. (2) For the six months ended September 30, 2023, Other includes the impact of the change in accounting principle relating to the recognition and measurement of troubled debt restructurings, which was adopted on April 1, 2023. The total impact across all segments was negative of ¥18,869 million.

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Movement in Carrying Amount of Goodwill	The table below presents the movement in the carrying amount of goodwill during the six months ended September 30, 2023 and 2024: Six months ended 2023 2024 (in millions) Balance at beginning of period Goodwill (1) ¥ 889,524 ¥ 1,086,510 Accumulated impairment losses (1) (592,752) (592,752) 296,772 493,758 Goodwill acquired during the six months 67,227 151,774 (2) Foreign currency translation adjustments and other 23,104 30,849 Balance at end of period Goodwill 979,855 1,269,133 Accumulated impairment losses (592,752) (592,752) ¥ 387,103 ¥ 676,381 Notes: (1) Goodwill originally recognized of ¥1,900,019 million, which has been fully impaired before April 1, 2023, is not included in the table above. (2) Goodwill acquired during the six months ended September 30, 2024, relates to the acquisition of business in the Asset Management & Investor Services Business Group, including the acquisition of MPMS (See Note 2).
Carrying Amount of Other Intangible Assets by Major Class	The table below presents the net carrying amount by major class of other intangible assets at March 31, 2024 and September 30, 2024: March 31, September 30, (in millions) Intangible assets subject to amortization: Software ¥ 927,893 ¥ 982,042 Customer relationships 265,082 318,264 Core deposit intangibles 43,741 41,614 Trade names 38,621 38,935 Other 14,245 14,404 Total 1,289,582 1,395,259 Intangible assets not subject to amortization: Other 8,178 7,898 Total ¥ 1,297,760 ¥ 1,403,157

Lease Transactions (Tables)

Lease Transactions (Tables)	6 Months Ended
	Sep. 30, 2024
Leases [Abstract]
Profit or Loss of Lease Transactions	The following table presents profit or loss of lease transactions as a lessor for the six months ended September 30, 2023 and September 30, 2024: September 30, September 30, (in millions) Sales type and direct financing leases: Finance income on net investment ¥ 70,426 ¥ 73,163 Operating leases: Lease income 3,938 5,085 Total ¥ 74,364 ¥ 78,248

Pledged Assets and Collateral (

Pledged Assets and Collateral (Tables)	6 Months Ended
	Sep. 30, 2024
Financial Instruments Pledged as Collateral [Abstract]
Assets Mortgaged Pledged or Otherwise Subject to Lien	At September 30, 2024, assets mortgaged, pledged, or otherwise subject to lien were as follows: September 30, 2024 (in millions) Trading account securities ¥ 10,245,563 Investment securities 13,369,390 Loans 18,334,549 Other 27,678 Total ¥ 41,977,180
Pledged Assets Classified by Type of Liabilities	The above pledged assets were classified by type of liabilities to which they related as follows: September 30, 2024 (in millions) Deposits ¥ 15,226 Payables under repurchase agreements and securities lending transactions 20,207,187 Other short-term borrowings and long-term debt 21,700,084 Other 54,683 Total ¥ 41,977,180

Severance Indemnities and Pen_2

Severance Indemnities and Pension Plans (Tables)	6 Months Ended
	Sep. 30, 2024
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost of Pension Benefits, SIPs and Other Benefits	The following table summarizes the components of net periodic benefit costs of pension benefits, severance indemnities plans (“SIPs”) and other benefits for the six months ended September 30, 2023 and 2024: Six months ended September 30, Domestic subsidiaries Foreign offices and subsidiaries 2023 2024 2023 2024 Pension benefits and SIPs Pension benefits and SIPs Pension benefits （As Adjusted） Other benefits Pension benefits Other benefits (in millions) Service cost—benefits earned during the period ¥ 17,788 ¥ 16,104 ¥ 6,191 ¥ 30 ¥ 7,731 ¥ 47 Interest cost on projected benefit obligation 10,288 12,041 4,367 594 4,423 643 Expected return on plan assets (41,218) (48,224) (5,574) (732) (6,202) (835) Amortization of net actuarial loss (gain) 925 (9,002) 837 584 276 61 Amortization of prior service cost (973) (355) (430) (208) (416) (225) Loss (gain) on settlements and curtailment (6,393) (7,683) 974 — — — Other — (110) — — (956) (301) Net periodic benefit cost (income) ¥ (19,583) ¥ (37,229) ¥ 6,365 ¥ 268 ¥ 4,856 ¥ (610)

Offsetting of Derivatives, Re_2

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions (Tables)	6 Months Ended
	Sep. 30, 2024
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 condensed consolidated balance sheet” column in the tabular disclosure below. Gross Gross amounts offset in the condensed consolidated balance sheet Net amounts presented in the condensed consolidated balance sheet Gross amounts not offset in the condensed consolidated balance sheet Net amounts At March 31, 2024 (As Adjusted): 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 agreements 20,906 (2,082) 18,824 (17,532) (9) 1,283 Receivables under securities borrowing transactions 5,076 (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 agreements 37,771 (2,081) 35,690 (34,188) (82) 1,420 Payables under securities lending transactions 1,092 (75) 1,017 (992) (10) 15 Obligations to return securities received as collateral 7,223 — 7,223 (1,766) — 5,457 Total ¥ 62,446 ¥ (2,156) ¥ 60,290 ¥ (48,571) ¥ (2,246) ¥ 9,473 Gross Gross amounts offset in the condensed consolidated balance sheet Net amounts presented in the condensed consolidated balance sheet Gross amounts not offset in the condensed consolidated balance sheet Net amounts At September 30, 2024: Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 16,382 ¥ — ¥ 16,382 ¥ (12,964) ¥ (1,018) ¥ 2,400 Receivables under resale agreements 20,981 (2,567) 18,414 (17,382) (10) 1,022 Receivables under securities borrowing transactions 5,553 (18) 5,535 (5,048) — 487 Total ¥ 42,916 ¥ (2,585) ¥ 40,331 ¥ (35,394) ¥ (1,028) ¥ 3,909 Financial liabilities: Derivative liabilities ¥ 16,637 ¥ — ¥ 16,637 ¥ (12,616) ¥ (1,361) ¥ 2,660 Payables under repurchase agreements 40,289 (2,565) 37,724 (35,949) (64) 1,711 Payables under securities lending transactions 662 (18) 644 (626) (3) 15 Obligations to return securities received as collateral 6,335 — 6,335 (1,342) — 4,993 Total ¥ 63,923 ¥ (2,583) ¥ 61,340 ¥ (50,533) ¥ (1,428) ¥ 9,379
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 condensed consolidated balance sheet” column in the tabular disclosure below. Gross Gross amounts offset in the condensed consolidated balance sheet Net amounts presented in the condensed consolidated balance sheet Gross amounts not offset in the condensed consolidated balance sheet Net amounts At March 31, 2024 (As Adjusted): 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 agreements 20,906 (2,082) 18,824 (17,532) (9) 1,283 Receivables under securities borrowing transactions 5,076 (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 agreements 37,771 (2,081) 35,690 (34,188) (82) 1,420 Payables under securities lending transactions 1,092 (75) 1,017 (992) (10) 15 Obligations to return securities received as collateral 7,223 — 7,223 (1,766) — 5,457 Total ¥ 62,446 ¥ (2,156) ¥ 60,290 ¥ (48,571) ¥ (2,246) ¥ 9,473 Gross Gross amounts offset in the condensed consolidated balance sheet Net amounts presented in the condensed consolidated balance sheet Gross amounts not offset in the condensed consolidated balance sheet Net amounts At September 30, 2024: Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 16,382 ¥ — ¥ 16,382 ¥ (12,964) ¥ (1,018) ¥ 2,400 Receivables under resale agreements 20,981 (2,567) 18,414 (17,382) (10) 1,022 Receivables under securities borrowing transactions 5,553 (18) 5,535 (5,048) — 487 Total ¥ 42,916 ¥ (2,585) ¥ 40,331 ¥ (35,394) ¥ (1,028) ¥ 3,909 Financial liabilities: Derivative liabilities ¥ 16,637 ¥ — ¥ 16,637 ¥ (12,616) ¥ (1,361) ¥ 2,660 Payables under repurchase agreements 40,289 (2,565) 37,724 (35,949) (64) 1,711 Payables under securities lending transactions 662 (18) 644 (626) (3) 15 Obligations to return securities received as collateral 6,335 — 6,335 (1,342) — 4,993 Total ¥ 63,923 ¥ (2,583) ¥ 61,340 ¥ (50,533) ¥ (1,428) ¥ 9,379

Repurchase Agreements and Sec_2

Repurchase Agreements and Securities Lending Transactions Accounted for as Secured Borrowings (Tables)	6 Months Ended
	Sep. 30, 2024
Disclosure of Repurchase Agreements [Abstract]
Gross Obligations by Remaining Contractual Maturity and Class of Collateral Pledged	March 31, 2024 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 8,846 ¥ 20,010 ¥ 7,209 ¥ 1,706 ¥ 37,771 Payables under securities lending transactions 1,015 1 — 76 1,092 Obligations to return securities received as collateral 6,076 610 135 402 7,223 Total ¥ 15,937 ¥ 20,621 ¥ 7,344 ¥ 2,184 ¥ 46,086 September 30, 2024 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 14,561 ¥ 18,317 ¥ 3,370 ¥ 4,041 ¥ 40,289 Payables under securities lending transactions 644 — — 18 662 Obligations to return securities received as collateral 5,869 85 98 283 6,335 Total ¥ 21,074 ¥ 18,402 ¥ 3,468 ¥ 4,342 ¥ 47,286
Secured Borrowing by the Class of Collateral Pledged	Secured borrowing by the class of collateral pledged at March 31, 2024 and September 30, 2024 was as follows: March 31, 2024 Payables under repurchase agreements Payables under securities lending transactions Obligations to return securities received as collateral Total (in billions) Japanese national government and Japanese government agency bonds ¥ 13,001 ¥ 359 ¥ 4,229 ¥ 17,589 Foreign government and official institution bonds 14,172 — 1,033 15,205 Corporate bonds 773 76 400 1,249 Residential mortgage-backed securities 8,819 — — 8,819 Other debt securities 346 — 38 384 Marketable equity securities 636 657 1,523 2,816 Other 24 — — 24 Total ¥ 37,771 ¥ 1,092 ¥ 7,223 ¥ 46,086 September 30, 2024 Payables under repurchase agreements Payables under securities lending transactions Obligations to return securities received as collateral Total (in billions) Japanese national government and Japanese government agency bonds ¥ 12,783 ¥ 162 ¥ 3,404 ¥ 16,349 Foreign government and official institution bonds 19,866 36 1,353 21,255 Corporate bonds 978 — 352 1,330 Residential mortgage-backed securities 5,212 — — 5,212 Other debt securities 212 — 24 236 Marketable equity securities 756 464 1,202 2,422 Other 482 — — 482 Total ¥ 40,289 ¥ 662 ¥ 6,335 ¥ 47,286

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Sep. 30, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Changes In Accumulated OCI, Net of Tax and Net of Noncontrolling Interests	The following table presents the changes in Accumulated other comprehensive income (“Accumulated OCI”), net of tax and net of noncontrolling interests, for the six months ended September 30, 2023 and 2024: Six months ended 2023 2024 (in millions) Accumulated other comprehensive income, net of taxes: Net unrealized losses on investment securities: Balance at beginning of period ¥ (883,931) ¥ (826,271) Net change during the period (158,006) 41,091 Balance at end of period ¥ (1,041,937) ¥ (785,180) Net debt valuation adjustments: Balance at beginning of period ¥ 3,268 ¥ (41,382) Net change during the period (22,260) 3,051 Balance at end of period ¥ (18,992) ¥ (38,331) Net unrealized gains on derivatives qualifying for cash flow hedges: Balance at beginning of period ¥ 551 ¥ 63 Net change during the period 1,078 178 Balance at end of period ¥ 1,629 ¥ 241 Defined benefit plans: Balance at beginning of period ¥ 8,350 ¥ 389,392 Net change during the period 48,942 (23,831) Balance at end of period ¥ 57,292 ¥ 365,561 Foreign currency translation adjustments: Balance at beginning of period ¥ 1,742,816 ¥ 2,715,823 Net change during the period 951,063 222,763 Balance at end of period ¥ 2,693,879 ¥ 2,938,586 Balance at end of period ¥ 1,691,871 ¥ 2,480,877
Before Tax and Net of Tax Changes in Each Component of Accumulated OCI	The following table presents the before tax and net of tax changes in each component of Accumulated OCI for the six months ended September 30, 2023 and 2024: Six months ended September 30, 2023 2024 Before tax Tax (expense) or benefit Net of tax Before tax Tax (expense) or benefit Net of tax (in millions) Net unrealized gains (losses) on investment securities: Net unrealized gains (losses) on investment securities ¥ (148,170) ¥ 23,379 ¥ (124,791) ¥ 58,792 ¥ 13,182 ¥ 71,974 Reclassification adjustment for losses (gains) included in net income before attribution of noncontrolling interests (51,965) 14,020 (37,945) 10,142 (3,467) 6,675 Net change (200,135) 37,399 (162,736) 68,934 9,715 78,649 Net unrealized gains (losses) on investment securities attributable to noncontrolling interests (4,730) 37,558 Net unrealized gains (losses) on investment securities attributable to Mitsubishi UFJ Financial Group (158,006) 41,091 Net debt valuation adjustments: Net debt valuation adjustments (32,387) 9,917 (22,470) 3,950 (1,210) 2,740 Reclassification adjustment for losses included in net income before attribution of noncontrolling interests 302 (92) 210 448 (137) 311 Net change (32,085) 9,825 (22,260) 4,398 (1,347) 3,051 Net debt valuation adjustments attributable to noncontrolling interests — — Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group (22,260) 3,051 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Net unrealized gains (losses) on derivatives qualifying for cash flow hedges 8,324 (1,674) 6,650 (8,998) 1,796 (7,202) Reclassification adjustment for losses (gains) included in net income before attribution of noncontrolling interests (6,552) 1,306 (5,246) 9,292 (1,858) 7,434 Net change 1,772 (368) 1,404 294 (62) 232 Net unrealized gains on derivatives qualifying for cash flow hedges attributable to noncontrolling interests 326 54 Net unrealized gains on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group 1,078 178 Defined benefit plans: Defined benefit plans 75,061 (23,003) 52,058 (16,030) 3,867 (12,163) Reclassification adjustment for gains included in net income before attribution of noncontrolling interests (4,606) 1,532 (3,074) (17,210) 5,274 (11,936) Net change 70,455 (21,471) 48,984 (33,240) 9,141 (24,099) Defined benefit plans attributable to noncontrolling interests 42 (268) Defined benefit plans attributable to Mitsubishi UFJ Financial Group 48,942 (23,831) Foreign currency translation adjustments: Foreign currency translation adjustments 1,172,869 (146,399) 1,026,470 219,251 71,910 291,161 Reclassification adjustment for gains included in net income before attribution of noncontrolling interests (4,231) 1,296 (2,935) (6,824) 2,181 (4,643) Net change 1,168,638 (145,103) 1,023,535 212,427 74,091 286,518 Foreign currency translation adjustments attributable to noncontrolling interests 72,472 63,755 Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group 951,063 222,763 Other comprehensive income attributable to Mitsubishi UFJ Financial Group ¥ 820,817 ¥ 243,252
Reclassification of Significant Items out of Accumulated OCI	The following table presents the effect of the reclassification of significant items out of Accumulated OCI on the respective line items of the accompanying condensed consolidated statements of income for the six months ended September 30, 2023 and 2024: Six months ended 2023 2024 Details of Accumulated OCI components Amount reclassified out of Accumulated OCI Line items in the consolidated statements of income (in millions) Net unrealized losses (gains) on investment securities Net gains on sales and redemptions of Available-for-sale debt securities ¥ (52,655) ¥ (2,687) Investment securities gains (losses)—net Impairment losses on investment securities 2 12,798 Investment securities gains (losses)—net Other 688 31 (51,965) 10,142 Total before tax 14,020 (3,467) Income tax expense ¥ (37,945) ¥ 6,675 Net of tax Net debt valuation adjustments ¥ 302 ¥ 448 Equity in earnings of equity method investees—net 302 448 Total before tax (92) (137) Income tax expense ¥ 210 ¥ 311 Net of tax Net unrealized losses (gains) on derivatives qualifying for cash flow hedges Foreign exchange contracts (6,552) 9,292 Interest expense on Long-term debt or Foreign exchange gains (losses)—net (6,552) 9,292 Total before tax 1,306 (1,858) Income tax expense ¥ (5,246) ¥ 7,434 Net of tax Defined benefit plans Net actuarial loss (gain) (1) ¥ 2,346 ¥ (8,665) Other non-interest expenses Prior service cost (1) (1,610) (996) Other non-interest expenses Gain on settlements and curtailment, and other (1) (5,342) (7,549) Other non-interest expenses (4,606) (17,210) Total before tax 1,532 5,274 Income tax expense ¥ (3,074) ¥ (11,936) Net of tax Foreign currency translation adjustments ¥ (4,231) ¥ (6,824) Other non-interest income (4,231) (6,824) Total before tax 1,296 2,181 Income tax expense ¥ (2,935) ¥ (4,643) Net of tax Total reclassifications for the period ¥ (67,052) ¥ (4,152) Total before tax 18,062 1,993 Income tax expense ¥ (48,990) ¥ (2,159) Net of tax Note: (1) These Accumulated OCI components are components of net periodic benefit cost. See Note 8 for more information.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Notional Amounts of Derivative Contracts	The following table summarizes the notional amounts of derivative contracts at March 31, 2024 and September 30, 2024: Notional amounts (1) March 31, September 30, 2024 (in trillions) Interest rate contracts ¥ 1,812.8 ¥ 2,010.0 Foreign exchange contracts 340.7 338.1 Equity contracts 5.0 5.0 Commodity contracts 0.2 0.2 Credit derivatives 5.3 5.6 Other 3.6 3.6 Total ¥ 2,167.6 ¥ 2,362.5 Note: (1) Includes both written and purchased positions.
Fair Value Information on Derivative Instruments Recorded on Condensed Consolidated Balance Sheets	The following table summarizes fair value information on derivative instruments that are recorded on the MUFG Group’s condensed consolidated balance sheets at March 31, 2024 and September 30, 2024: Fair value of derivative instruments March 31, 2024 (1)(5) (As Adjusted) September 30, 2024 (1)(5) Not designated as hedges (2) Designated as hedges (3) Total derivatives (4) Not designated as hedges (2) Designated as hedges (3) Total derivatives (4) (in billions) Derivative assets: Interest rate contracts ¥ 9,505 ¥ — ¥ 9,505 ¥ 10,410 ¥ — ¥ 10,410 Foreign exchange contracts 5,647 10 5,657 5,760 3 5,763 Equity contracts 123 — 123 103 — 103 Commodity contracts 19 — 19 20 — 20 Credit derivatives 47 — 47 59 — 59 Other (6) — — — 27 — 27 Total derivative assets ¥ 15,341 ¥ 10 ¥ 15,351 ¥ 16,379 ¥ 3 ¥ 16,382 Derivative liabilities: Interest rate contracts ¥ 10,696 ¥ — ¥ 10,696 ¥ 11,277 ¥ — ¥ 11,277 Foreign exchange contracts 5,536 — 5,536 5,278 4 5,282 Equity contracts 158 — 158 122 — 122 Commodity contracts 18 — 18 19 — 19 Credit derivatives 62 — 62 55 — 55 Other (6) (110) — (110) (118) — (118) Total derivative liabilities ¥ 16,360 ¥ — ¥ 16,360 ¥ 16,633 ¥ 4 ¥ 16,637 Notes: (1) The fair value of derivative instruments is presented on a gross basis even when derivative instruments are subject to master netting agreements. Cash collateral payable and receivable associated with derivative instruments are not added to or netted against the fair value amounts. (2) Except for the derivative instruments described in (6), the derivative instruments which are not designated as a hedging instrument are held for trading and risk management purposes and are presented in Trading account assets and liabilities. (3) The MUFG Group adopts hedging strategies and applies hedge accounting to certain derivative transactions entered into by certain subsidiaries. The derivative instruments which are designated as hedging instruments are presented in Other assets or Other liabilities on the accompanying condensed consolidated balance sheets. (4) This table does not include contracts with embedded derivatives for which the fair value option has been elected. (5) For more information about fair value measurement and assumptions used to measure the fair value of derivatives, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (6) Other mainly includes bifurcated embedded derivatives carried at fair value, which are presented in Loans, Deposits and Long-term debt.
Gains and Losses for Trading and Risk Management Derivatives (Not Designated as Hedging Instruments)	The following table provides more detailed information regarding the derivative-related impact on the accompanying condensed consolidated statements of income for the six months ended September 30, 2023 and 2024: Trading and risk management derivatives gains and losses (Not designated as hedging instruments) Foreign exchange gains (losses)—net Trading account profits (losses)—net Total (in billions) Six months ended September 30, 2023 (As Adjusted): Interest rate contracts ¥ — ¥ (223) ¥ (223) Foreign exchange contracts (380) — (380) Equity contracts — (268) (268) Credit derivatives — (20) (20) Other (1) (8) (32) (40) Total ¥ (388) ¥ (543) ¥ (931) Six months ended September 30, 2024: Interest rate contracts ¥ — ¥ (103) ¥ (103) Foreign exchange contracts 258 — 258 Equity contracts — 215 215 Credit derivatives — 2 2 Other (1) 23 (10) 13 Total ¥ 281 ¥ 104 ¥ 385 Note: (1) Other mainly includes bifurcated embedded derivatives carried at fair value, which are presented in Loans, Deposits and Long-term debt.
Protection Sold Through Credit Derivatives	The table below summarizes certain information regarding protection sold through credit derivatives as of March 31, 2024 and September 30, 2024: Protection sold Maximum potential/Notional amount by expiration period Fair value At March 31, 2024: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 212,513 ¥ 736,935 ¥ 219,642 ¥ 1,169,090 ¥ (17,199) Non-investment grade 82,749 146,029 15,837 244,615 211 Total 295,262 882,964 235,479 1,413,705 (16,988) Index and basket credit default swaps : Investment grade (2) 73,300 681,443 10,202 764,945 (11,458) Non-investment grade — — — — — Not rated 2,836 24,623 3,404 30,863 (548) Total 76,136 706,066 13,606 795,808 (12,006) Total credit default swaps sold ¥ 371,398 ¥ 1,589,030 ¥ 249,085 ¥ 2,209,513 ¥ (28,994) Protection sold Maximum potential/Notional amount by expiration period Fair value At September 30, 2024: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 205,198 ¥ 776,859 ¥ 190,509 ¥ 1,172,566 ¥ (17,819) Non-investment grade 37,040 128,223 9,431 174,694 103 Total 242,238 905,082 199,940 1,347,260 (17,716) Index and basket credit default swaps : Investment grade (2) 42,300 769,496 9,864 821,660 (9,993) Non-investment grade — 57,092 — 57,092 (802) Not rated — 126,043 3,864 129,907 (2,553) Total 42,300 952,631 13,728 1,008,659 (13,348) Total credit default swaps sold ¥ 284,538 ¥ 1,857,713 ¥ 213,668 ¥ 2,355,919 ¥ (31,064) Notes: (1) Fair value amounts are shown on a gross basis prior to cash collateral or counterparty netting. (2) The MUFG Group considers ratings of Baa3/BBB- or higher to meet the definition of investment grade.

Obligations Under Guarantees _2

Obligations Under Guarantees and Other Off-balance Sheet Instruments (Tables)	6 Months Ended
	Sep. 30, 2024
Guarantee Obligations And Other Off Balance Sheet Instruments [Abstract]
Contractual or Notional Amounts of Guarantees	The table below presents the contractual or notional amounts of such guarantees at March 31, 2024 and September 30, 2024: March 31, September 30, 2024 (As Adjusted) (in billions) Standby letters of credit and financial guarantees ¥ 5,320 ¥ 5,259 Performance guarantees 4,788 4,606 Derivative instruments (1)(2) 51,058 54,154 Liabilities of trust accounts 19,938 19,365 Other 40 25 Total ¥ 81,144 ¥ 83,409 Notes: (1) Credit derivatives sold by the MUFG Group are excluded from this presentation. (2) Derivative instruments that are deemed to be included within the definition of guarantees as prescribed in the guidance on guarantees include certain written options and credit default swaps.
Maximum Potential Amount of Future Payments Classified Based Upon Internal Credit Ratings	Presented in the tables below is the maximum potential amount of future payments classified based upon internal credit ratings as of March 31, 2024 and September 30, 2024. The determination of the maximum potential future payments is based on the notional amount of the guarantees without consideration of possible recoveries under recourse provisions or from collateral held or pledged. Such amounts do not represent the anticipated losses, if any, on these guarantees. At March 31, 2024: Maximum potential/ Contractual or Notional amount Amount by borrower grade Normal Close Watch (1) Likely to become Bankrupt or Legally/ Virtually Bankrupt (1) Not rated (As Adjusted) (in billions) Standby letters of credit and financial guarantees ¥ 5,320 ¥ 5,161 ¥ 123 ¥ 18 ¥ 18 Performance guarantees 4,788 4,685 45 29 29 Total ¥ 10,108 ¥ 9,846 ¥ 168 ¥ 47 ¥ 47 At September 30, 2024: Maximum potential/ Contractual or Notional amount Amount by borrower grade Normal Close Watch (1) Likely to become Bankrupt or Legally/ Virtually Bankrupt (1) Not rated (in billions) Standby letters of credit and financial guarantees ¥ 5,259 ¥ 5,121 ¥ 119 ¥ 12 ¥ 7 Performance guarantees 4,606 4,502 45 23 36 Total ¥ 9,865 ¥ 9,623 ¥ 164 ¥ 35 ¥ 43 Note: (1) See Notes of the tables regarding “the maximum potential amount of future payments classified based upon internal credit ratings” in Note 24 to the consolidated financial statements for the fiscal year ended March 31, 2024.
Contractual Amounts With Regard to Other Off Balance Sheet Instruments	The table below presents the contractual amounts with regard to such instruments at March 31, 2024 and September 30, 2024: March 31, September 30, 2024 (As Adjusted) (in billions) Commitments to extend credit ¥ 94,414 ¥ 94,819 Commercial letters of credit 974 861 Commitments to make investments 674 720

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	6 Months Ended
	Sep. 30, 2024
Variable Interest Entities [Abstract]
Assets and Liabilities of Variable Interest Entities	The following tables present the assets and liabilities of consolidated VIEs recorded on the accompanying condensed consolidated balance sheets at March 31, 2024 and September 30, 2024: Consolidated VIEs Consolidated assets At March 31, 2024 (As Adjusted): Total Cash and due from banks Interest-earning deposits in other banks Trading account assets Investment securities Loans All other assets (in millions) Asset-backed conduits ¥ 8,186,919 ¥ 66,761 ¥ 33,826 ¥ 45,689 ¥ 860,760 ¥ 7,045,964 ¥ 133,919 Investment funds 1,662,843 1,759 30,748 337,619 77,334 — 1,215,383 Special purpose entities created for structured financing 248,049 — 3,820 — — 143,688 100,541 Repackaged instruments 296,435 9,892 — 137,795 132,951 15,000 797 Securitization of the MUFG Group’s assets 10,447,956 — 1,664 — — 10,428,225 18,067 Trust arrangements 5,352,775 — — 803,348 1,811,498 2,737,908 21 Other 85,008 470 5,366 14,059 38,219 2,481 24,413 Total consolidated assets before elimination 26,279,985 78,882 75,424 1,338,510 2,920,762 20,373,266 1,493,141 The amounts eliminated in consolidation (3,671,326) (68,736) (41,258) (72,217) (600,219) (2,859,135) (29,761) Total consolidated assets ¥ 22,608,659 ¥ 10,146 ¥ 34,166 ¥ 1,266,293 ¥ 2,320,543 ¥ 17,514,131 ¥ 1,463,380 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other liabilities (in millions) Asset-backed conduits ¥ 8,162,014 ¥ — ¥ 6,331,278 ¥ 1,371,157 ¥ 459,579 Investment funds 1,147,832 — 1,136,495 8,772 2,565 Special purpose entities created for structured financing 136,230 — — 117,947 18,283 Repackaged instruments 301,045 — — 287,192 13,853 Securitization of the MUFG Group’s assets 10,460,439 — — 10,454,694 5,745 Trust arrangements 5,352,880 3,292,449 1,131,120 — 929,311 Other 78,350 — 966 54,159 23,225 Total consolidated liabilities before elimination 25,638,790 3,292,449 8,599,859 12,293,921 1,452,561 The amounts eliminated in consolidation (16,806,678) (432) (4,242,371) (11,888,346) (675,529) The amount of liabilities with recourse to the general credit of the MUFG Group (8,275,821) (3,292,017) (4,311,280) (26,558) (645,966) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 556,291 ¥ — ¥ 46,208 ¥ 379,017 ¥ 131,066 Consolidated VIEs Consolidated assets At September 30, 2024: Total Cash and due from banks Interest-earning deposits in other banks Trading account assets Investment securities Loans All other (in millions) Asset-backed conduits ¥ 7,837,476 ¥ 59,653 ¥ 9,056 ¥ 30,660 ¥ 1,066,793 ¥ 6,635,495 ¥ 35,819 Investment funds 1,931,625 3,627 77,762 316,919 82,111 — 1,451,206 Special purpose entities created for structured financing 264,271 — 7,299 — — 161,314 95,658 Repackaged instruments 299,749 5,267 — 134,983 142,925 15,000 1,574 Securitization of the MUFG Group’s assets 9,973,885 — 571 — — 9,957,585 15,729 Trust arrangements 3,881,900 — — 818,856 1,760,368 1,302,675 1 Other 238,122 489 4,148 6,023 38,737 4,269 184,456 Total consolidated assets before elimination 24,427,028 69,036 98,836 1,307,441 3,090,934 18,076,338 1,784,443 The amounts eliminated in consolidation (2,337,750) (63,432) (36,142) (35,724) (600,084) (1,436,388) (165,980) Total consolidated assets ¥ 22,089,278 ¥ 5,604 ¥ 62,694 ¥ 1,271,717 ¥ 2,490,850 ¥ 16,639,950 ¥ 1,618,463 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other (in millions) Asset-backed conduits ¥ 7,863,659 ¥ — ¥ 5,909,982 ¥ 1,438,850 ¥ 514,827 Investment funds 1,401,945 — 1,389,280 8,944 3,721 Special purpose entities created for structured financing 143,924 — — 132,986 10,938 Repackaged instruments 281,658 — — 234,474 47,184 Securitization of the MUFG Group’s assets 9,986,252 — — 9,982,854 3,398 Trust arrangements 3,882,061 1,884,244 1,086,986 — 910,831 Other 311,764 — 807 278,751 32,206 Total consolidated liabilities before elimination 23,871,263 1,884,244 8,387,055 12,076,859 1,523,105 The amounts eliminated in consolidation (16,627,232) (369) (4,279,490) (11,630,196) (717,177) The amount of liabilities with recourse to the general credit of the MUFG Group (6,627,312) (1,883,875) (4,066,740) (6,247) (670,450) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 616,719 ¥ — ¥ 40,825 ¥ 440,416 ¥ 135,478 The following tables present the total assets of non-consolidated VIEs, the maximum exposure to loss resulting from the MUFG Group’s involvement with non-consolidated VIEs, and the assets and liabilities which relate to the MUFG’s variable interests in non-consolidated VIEs at March 31, 2024 and September 30, 2024: Non-consolidated VIEs On-balance sheet assets On-balance sheet liabilities At March 31, 2024 (As Adjusted): Total assets Maximum exposure Total Trading account assets Investment securities Loans All other assets Total All other liabilities (in millions) Asset-backed conduits ¥ 39,009,182 ¥ 9,223,412 ¥ 7,284,351 ¥ 13,184 ¥ 2,147,351 ¥ 5,123,816 ¥ — ¥ 3,860 ¥ 3,860 Investment funds 140,717,674 7,385,746 4,757,037 321,000 300,803 3,719,748 415,486 16,172 16,172 Special purpose entities created for structured financing 72,102,436 7,696,582 5,334,476 93,808 61,114 5,134,236 45,318 251,944 251,944 Repackaged instruments 10,205,539 5,144,654 5,004,762 1,683,889 2,592,589 497,156 231,128 — — Other 96,343,162 4,594,025 3,234,286 261,745 — 2,871,454 101,087 17,651 17,651 Total ¥ 358,377,993 ¥ 34,044,419 ¥ 25,614,912 ¥ 2,373,626 ¥ 5,101,857 ¥ 17,346,410 ¥ 793,019 ¥ 289,627 ¥ 289,627 Non-consolidated VIEs On-balance sheet assets On-balance sheet liabilities At September 30, 2024: Total assets Maximum exposure Total Trading account assets Investment securities Loans All other Total All other liabilities (in millions) Asset-backed conduits ¥ 29,789,964 ¥ 8,667,183 ¥ 6,681,352 ¥ 29,401 ¥ 2,157,031 ¥ 4,494,920 ¥ — ¥ 982 ¥ 982 Investment funds 107,184,083 7,026,974 4,568,235 386,996 211,183 3,738,255 231,801 12,116 12,116 Special purpose entities created for structured financing 71,035,055 7,415,470 5,068,653 102,641 59,518 4,840,457 66,037 211,236 211,236 Repackaged instruments 8,231,091 4,300,776 4,212,759 1,741,380 1,801,704 466,149 203,526 89 89 Other 98,123,684 4,512,729 3,214,095 309,771 — 2,785,355 118,969 22,687 22,687 Total ¥ 314,363,877 ¥ 31,923,132 ¥ 23,745,094 ¥ 2,570,189 ¥ 4,229,436 ¥ 16,325,136 ¥ 620,333 ¥ 247,110 ¥ 247,110

Fees and Commissions Income (Ta

Fees and Commissions Income (Tables)	6 Months Ended
	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
Details of Fees and Commissions Income	Details of fees and commissions income for the six months ended September 30, 2023 and 2024 are as follows: 2023 2024 (in millions) Fees and commissions on deposits ¥ 18,277 ¥ 18,418 Fees and commissions on remittances and transfers 73,481 78,435 Fees and commissions on foreign trading business 36,905 42,601 Fees and commissions on credit card business 120,202 128,463 Fees and commissions on security-related services 133,126 169,960 Fees and commissions on administration and management services for investment funds 150,700 162,524 Trust fees 62,724 69,501 Guarantee fees (1) 25,270 26,663 Insurance commissions 29,934 38,107 Fees and commissions on real estate business 22,347 28,190 Other fees and commissions (2) 213,264 250,166 Total ¥ 886,230 ¥ 1,013,028 Notes: (1) Guarantee fees are not within the scope of the guidance on revenue from contracts with customers. (2) Other fees and commissions include non-refundable financing related fees that are not within the scope of the guidance on revenue from contracts with customers.

Business Segments (Tables)

Business Segments (Tables)	6 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Financial Information by Business Segment	Customer Business Retail & Digital Business Group Commercial Banking & Wealth Management Business Group Japanese Global Asset Global Total Global Other Total (in billions) Six months ended September 30, 2023: Net revenue: ¥ 409.3 ¥ 283.6 ¥ 455.9 ¥ 310.8 ¥ 205.7 ¥ 409.0 ¥ 2,074.3 ¥ 376.5 ¥ 44.6 ¥ 2,495.4 BK and TB (1) : 155.7 189.5 371.7 19.5 56.8 367.3 1,160.5 226.5 122.8 1,509.8 Net interest income 123.8 93.7 230.9 19.1 6.5 186.7 660.7 97.3 128.5 886.5 Net fees 30.2 78.7 104.7 — 50.3 163.1 427.0 (8.5) (9.7) 408.8 Other 1.7 17.1 36.1 0.4 — 17.5 72.8 137.7 4.0 214.5 Other than BK and TB 253.6 94.1 84.2 291.3 148.9 41.7 913.8 150.0 (78.2) 985.6 Operating expenses 310.7 202.3 182.2 174.6 147.6 204.1 1,221.5 149.0 52.6 1,423.1 Operating profit (loss) ¥ 98.6 ¥ 81.3 ¥ 273.7 ¥ 136.2 ¥ 58.1 ¥ 204.9 ¥ 852.8 ¥ 227.5 ¥ (8.0) ¥ 1,072.3 Fixed assets (2) ¥ 231.4 ¥ 170.3 ¥ 163.5 ¥ 1.5 ¥ 22.1 ¥ 169.2 ¥ 758.0 ¥ 110.9 ¥ 508.0 ¥ 1,376.9 Increase in fixed assets (3) ¥ 25.1 ¥ 16.9 ¥ 22.6 ¥ 0.2 ¥ 7.3 ¥ 15.9 ¥ 88.0 ¥ 13.3 ¥ 12.7 ¥ 114.0 Depreciation (3) ¥ 11.3 ¥ 9.1 ¥ 21.4 ¥ 0.1 ¥ 4.0 ¥ 21.8 ¥ 67.7 ¥ 15.6 ¥ 6.9 ¥ 90.2 Six months ended September 30, 2024: Net revenue: ¥ 457.1 ¥ 339.1 ¥ 502.9 ¥ 577.3 ¥ 244.4 ¥ 433.1 ¥ 2,553.9 ¥ 361.2 ¥ (10.3) ¥ 2,904.8 BK and TB (1) : 190.3 227.7 405.9 19.8 67.7 383.1 1,294.5 227.4 41.1 1,563.0 Net interest income 149.3 122.2 253.1 19.8 12.6 206.7 763.7 56.9 84.6 905.2 Net fees 39.3 85.4 119.0 — 55.0 161.3 460.0 (12.0) (13.7) 434.3 Other 1.7 20.1 33.8 — 0.1 15.1 70.8 182.5 (29.8) 223.5 Other than BK and TB 266.8 111.4 97.0 557.5 176.7 50.0 1,259.4 133.8 (51.4) 1,341.8 Operating expenses 328.4 210.8 188.3 302.2 175.5 208.4 1,413.6 158.7 38.0 1,610.3 Operating profit (loss) ¥ 128.7 ¥ 128.3 ¥ 314.6 ¥ 275.1 ¥ 68.9 ¥ 224.7 ¥ 1,140.3 ¥ 202.5 ¥ (48.3) ¥ 1,294.5 Fixed assets (2) ¥ 250.7 ¥ 179.7 ¥ 165.5 ¥ 1.8 ¥ 21.3 ¥ 158.2 ¥ 777.2 ¥ 95.3 ¥ 492.7 ¥ 1,365.2 Increase in fixed assets (3) ¥ 22.5 ¥ 17.3 ¥ 20.5 ¥ 0.3 ¥ 4.0 ¥ 10.6 ¥ 75.2 ¥ 10.7 ¥ 12.0 ¥ 97.9 Depreciation (3) ¥ 15.9 ¥ 10.2 ¥ 20.4 ¥ 0.1 ¥ 3.9 ¥ 17.8 ¥ 68.3 ¥ 15.4 ¥ 6.5 ¥ 90.2 Notes: (1) “BK and TB” is a sum of MUFG Bank on a stand-alone basis (BK) and Mitsubishi UFJ Trust and Banking on a stand-alone basis (TB). (2) Fixed assets in the above table are based on the financial information prepared in accordance with Japanese GAAP as adjusted in accordance with internal management accounting rules and practices, and the amounts correspond to premises and equipment-net, intangible assets-net and goodwill of BK and TB. Fixed assets of MUFG and other consolidated subsidiaries and Japanese GAAP consolidation adjustments amounting to ¥1,344.5 billion as of September 30, 2023 and ¥1,820.3 billion as of September 30, 2024, respectively, are not allocated to each business segment when determining the allocation of management resources and assessing performance and, therefore, such amounts are not included in the table above. (3) These amounts are related to the fixed assets of BK and TB included in the table above.
Reconciliation of Operating Profit (Loss) from Segments to Condensed Consolidated Statements of Income	A reconciliation of operating profit and fixed assets under the internal management reporting system for the six months ended September 30, 2023 and 2024 above to income before income tax expense shown in the accompanying condensed consolidated statements of income and the total amount of premises and equipment-net, intangible assets-net and goodwill are as follows: Starting from the fiscal year ending March 31, 2025, the fiscal year of Krungsri has been changed from the previous January to December period to an April to March period for consolidation purposes. In connection with this change, the operating profit prepared in accordance with Japanese GAAP includes Krungsri's operating profit for nine months, while the income before income tax expense prepared in accordance with U.S. GAAP includes Krungsri's income before income tax expense for six months. The adjustment for the difference between the two is included in Other – net. Six months ended 2023 2024 (in billions) Operating profit: ¥ 1,072 ¥ 1,295 Provision for credit losses (72) (129) Foreign exchange gains (losses)—net (379) 173 Trading account gains (losses)—net (1,139) 425 Equity investment securities gains (losses)—net 625 (493) Debt investment securities gains (losses)—net 104 (13) Equity in earnings of equity method investees—net 215 316 Reversal of off-balance sheet credit instruments 4 1 Other—net (141) (231) Income before income tax expense ¥ 289 ¥ 1,344 Fixed assets: ¥ 1,377 ¥ 1,365 U.S. GAAP adjustments and other 1,111 1,594 Premises and equipment-net, Intangible assets-net and Goodwill ¥ 2,488 ¥ 2,959

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	The following tables present the financial instruments carried at fair value by level within the fair value hierarchy as of March 31, 2024 and September 30, 2024: At March 31, 2024 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 18,626,261 ¥ 13,463,967 ¥ 2,041,954 ¥ 34,132,182 Debt securities Japanese national government and Japanese government agency bonds 6,278,228 395,745 — 6,673,973 Japanese prefectural and municipal bonds — 91,683 — 91,683 Foreign government and official institution bonds 10,170,757 668,715 101 10,839,573 Corporate bonds 8,937 2,723,957 — 2,732,894 Residential mortgage-backed securities — 5,422,286 — 5,422,286 Asset-backed securities — 1,374,191 1,352,755 2,726,946 Other debt securities — 2,599 536,846 539,445 Commercial paper — 1,609,441 — 1,609,441 Equity securities (2) 2,168,339 1,175,350 152,252 3,495,941 Trading derivative assets 90,334 15,099,648 151,242 15,341,224 Interest rate contracts 14,143 9,381,056 110,013 9,505,212 Foreign exchange contracts 10,473 5,623,544 12,647 5,646,664 Equity contracts 65,718 48,606 8,647 122,971 Commodity contracts — 391 18,282 18,673 Credit derivatives — 46,047 1,148 47,195 Other (8) — 4 505 509 Trading loans (3) — 31,542 — 31,542 Investment securities: Available-for-sale debt securities 23,569,981 7,648,181 204,805 31,422,967 Japanese national government and Japanese government agency bonds 21,336,860 1,830,540 — 23,167,400 Japanese prefectural and municipal bonds — 1,045,991 — 1,045,991 Foreign government and official institution bonds 2,233,121 1,069,430 — 3,302,551 Corporate bonds — 1,021,296 5,172 1,026,468 Residential mortgage-backed securities — 1,229,510 15 1,229,525 Asset-backed securities — 1,114,195 132,951 1,247,146 Other debt securities — 337,219 66,667 403,886 Equity securities 5,400,634 70,172 87,814 5,558,620 Marketable equity securities 5,400,634 70,172 — 5,470,806 Nonmarketable equity securities (4) — — 87,814 87,814 Other (5) 1,175,125 1,229,942 139,120 2,544,187 Total ¥ 48,862,335 ¥ 37,543,452 ¥ 2,624,935 ¥ 89,030,722 At March 31, 2024 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 103,705 ¥ 4,508 ¥ — ¥ 108,213 Trading derivative liabilities 117,567 16,261,406 92,336 16,471,309 Interest rate contracts 30,997 10,594,827 70,527 10,696,351 Foreign exchange contracts 954 5,532,241 2,449 5,535,644 Equity contracts 85,616 72,337 389 158,342 Commodity contracts — — 18,327 18,327 Credit derivatives — 61,999 488 62,487 Other (8) — 2 156 158 Obligation to return securities received as collateral (6) 6,955,707 195,622 71,399 7,222,728 Other (7) — 192,649 66,452 259,101 Total ¥ 7,176,979 ¥ 16,654,185 ¥ 230,187 ¥ 24,061,351 At September 30, 2024 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 18,900,000 ¥ 16,352,138 ¥ 2,241,273 ¥ 37,493,411 Debt securities Japanese national government and Japanese government agency bonds 5,946,162 462,070 — 6,408,232 Japanese prefectural and municipal bonds — 116,197 — 116,197 Foreign government and official institution bonds 10,637,393 768,921 — 11,406,314 Corporate bonds 3,958 2,724,574 112,867 2,841,399 Residential mortgage-backed securities — 7,973,417 — 7,973,417 Asset-backed securities — 1,315,776 1,462,122 2,777,898 Other debt securities — 36,299 528,173 564,472 Commercial paper — 1,888,753 — 1,888,753 Equity securities (2) 2,312,487 1,066,131 138,111 3,516,729 Trading derivative assets 59,901 16,140,296 150,916 16,351,113 Interest rate contracts 15,339 10,287,267 106,982 10,409,588 Foreign exchange contracts 5,123 5,739,249 15,129 5,759,501 Equity contracts 39,439 55,442 7,719 102,600 Commodity contracts — 534 19,299 19,833 Credit derivatives — 57,782 914 58,696 Other (8) — 22 873 895 Trading loans (3) — 38,834 — 38,834 Investment securities: Available-for-sale debt securities 19,498,699 7,267,926 196,201 26,962,826 Japanese national government and Japanese government agency bonds 17,220,733 1,419,509 — 18,640,242 Japanese prefectural and municipal bonds — 860,618 — 860,618 Foreign government and official institution bonds 2,277,966 1,152,029 — 3,429,995 Corporate bonds — 937,409 4,614 942,023 Residential mortgage-backed securities — 1,173,742 15 1,173,757 Asset-backed securities — 1,269,731 142,924 1,412,655 Other debt securities — 454,888 48,648 503,536 Equity securities 4,305,959 63,240 91,868 4,461,067 Marketable equity securities (9) 4,305,959 63,240 — 4,369,199 Nonmarketable equity securities (4) — — 91,868 91,868 Other (5) 820,022 1,585,037 130,030 2,535,089 Total ¥ 43,584,581 ¥ 41,447,471 ¥ 2,810,288 ¥ 87,842,340 At September 30, 2024 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 88,055 ¥ 8,766 ¥ — ¥ 96,821 Trading derivative liabilities 95,158 16,550,559 106,780 16,752,497 Interest rate contracts 24,727 11,168,456 84,192 11,277,375 Foreign exchange contracts 3,024 5,272,762 2,358 5,278,144 Equity contracts 67,407 54,679 297 122,383 Commodity contracts — — 19,329 19,329 Credit derivatives — 54,643 498 55,141 Other (8) — 19 106 125 Obligation to return securities received as collateral (6) 5,971,347 309,829 53,827 6,335,003 Other (7) — 424,438 53,251 477,689 Total ¥ 6,154,560 ¥ 17,293,592 ¥ 213,858 ¥ 23,662,010 Notes: (1) Includes securities measured under the fair value option. (2) Excludes certain investments valued at net asset value of private equity funds whose fair values at March 31, 2024 were ¥264,458 million and those at September 30, 2024 were ¥265,182 million, respectively. The amounts of unfunded commitments related to these private equity funds at March 31, 2024 were ¥134,429 million, and those at September 30, 2024 were ¥215,142 million, respectively. For the nature and details of these investments, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (3) Includes loans measured under the fair value option. (4) Excludes certain investments valued at net asset value of real estate funds and private equity and other funds whose fair values at March 31, 2024 were ¥37,207 million and ¥53,324 million, respectively, and those at September 30, 2024 were ¥37,064 million and ¥55,666 million, respectively. The amounts of unfunded commitments related to these real estate funds and private equity and other funds at March 31, 2024 were ¥869 million and ¥250 million, respectively, and those at September 30, 2024 were nil and ¥250 million, respectively. For the nature and details of these investments, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (5) Mainly comprises securities received as collateral that may be sold or repledged under securities lending transactions. (6) Included in Other liabilities. (7) Mainly includes other short-term borrowings, long-term debt and bifurcated embedded derivatives carried at fair value. (8) Includes certain derivatives such as earthquake derivatives. (9) Includes equity securities subject to contractual sale restrictions, with a total fair value of ¥14,902 million at September 30, 2024. The contractual restriction of these securities is a lock-up agreement, a market standoff agreement, or the result of a provision within a separate agreement between certain shareholders, and the range of remaining duration of these restrictions are 0.2 - 3.5 years. The market standoff agreements expire when the share price changes to a certain extent, and other agreements do not have specific clauses for a lapse in the restriction. See Note 1 for further information.
Reconciliation of Assets and Liabilities Measured at Fair Value on Recurring Basis Using Level 3 Inputs	Accordingly, the gains and losses in the tables below include changes in fair value due in part to observable inputs used in the valuation techniques. Six month ended September 30, 2023 (As Adjusted): Total gains (losses) Change in unrealized gains (losses) for assets and liabilities still held at September 30, 2023 March 31, 2023 Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, 2023 (in millions) Assets Trading account assets: Trading securities (1) ¥ 1,182,319 ¥ 149,674 (2) ¥ — ¥ 494,881 ¥ — ¥ (626) ¥ (9,895) ¥ 145 ¥ — ¥ 1,816,498 ¥ 148,307 (2) Debt securities Foreign government and official institution bonds 1,168 122 — 7 — (7) (1,140) — — 150 (1) Asset-backed securities 668,911 108,122 — 345,917 — — (4,191) — — 1,118,759 107,898 Other debt securities 334,124 42,225 — 141,000 — — — — — 517,349 42,225 Equity securities 178,116 (795) — 7,957 — (619) (4,564) 145 — 180,240 (1,815) Trading derivatives—net 81,096 (12,416) (2) 1,836 4 (355) — (10,117) 10,271 (55,284) 15,035 (14,426) (2) Interest rate contracts—net 48,629 (16,890) (1,036) — — — 1,267 10,595 (5) (53,445) (5) (10,880) (18,757) Foreign exchange contracts—net 11,345 (2,797) 999 — — — 417 (324) 59 9,699 (2,220) Equity contracts—net 16,928 8,065 1,874 4 — — (11,696) — (116) 15,059 7,327 Commodity contracts—net 91 (128) (1) — — — (6) — — (44) (128) Credit derivatives—net 3,739 (661) — — — — (99) — (1,782) 1,197 (648) Other—net (8) 364 (5) — — (355) — — — — 4 — Investment securities: Available-for-sale debt securities 253,964 1,681 (3) 20,605 205,826 — — (140,321) 26 — 341,781 18,340 (3) Corporate bonds 2,000 (2) 243 — — — (4) 26 — 2,263 241 Residential mortgage-backed securities 15 — — — — — — — — 15 — Asset-backed securities 182,938 1,597 15,841 205,611 — — (133,267) — — 272,720 13,492 Other debt securities 69,011 86 4,521 215 — — (7,050) — — 66,783 4,607 Equity securities 74,287 4,945 (3) 268 5,900 — (1,474) — — (462) 83,465 4,063 (3) Nonmarketable equity securities 74,287 4,945 268 5,900 — (1,474) — — (462) 83,465 4,063 Other 92,292 (128) (7) 101 27,955 — — (48) — — 120,173 (128) (7) Total ¥ 1,683,958 ¥ 143,756 ¥ 22,810 ¥ 734,566 ¥ (355) ¥ (2,100) ¥ (160,381) ¥ 10,442 ¥ (55,746) ¥ 2,376,952 ¥156,156 Liabilities Obligation to return securities received as collateral ¥ 68,204 ¥ — ¥ — ¥ — ¥ 5,053 ¥ — ¥ — ¥ — ¥ — ¥ 73,257 ¥ — Other 73,663 (24,475) (4) (5,791) — 23,080 — (54,619) 5,147 (6) (48,605) (6) 28,932 (6,980) (4) Total ¥ 141,867 ¥ (24,475) ¥ (5,791) ¥ — ¥ 28,133 ¥ — ¥ (54,619) ¥ 5,147 ¥ (48,605) ¥ 102,189 ¥ (6,980) Six month ended September 30, 2024: Total gains (losses) Change in unrealized gains (losses) for assets and liabilities still held at September 30, 2024 March 31, Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, 2024 (in millions) Assets Trading account assets: Trading securities (1) ¥ 2,041,954 ¥ (86,296) (2) ¥ (5,778) ¥ 356,780 ¥ — ¥ (2,059) ¥ (141,812) ¥ 78,484 ¥ — ¥ 2,241,273 ¥ (88,871) (2) Debt securities Foreign government and official institution bonds 101 (1) — — — — (100) — — — — Corporate bonds — (3,751) — 38,158 — — — 78,460 (5) — 112,867 (3,751) Asset-backed securities 1,352,755 (74,833) (5,778) 311,613 — — (121,635) — — 1,462,122 (74,912) Other debt securities 536,846 (8,673) — — — — — — — 528,173 (8,673) Equity securities 152,252 962 — 7,009 — (2,059) (20,077) 24 — 138,111 (1,535) Trading derivatives—net 58,906 2,123 (2) 981 670 (312) — (7,460) (14,859) 4,087 44,136 23,415 (2) Interest rate contracts—net 39,486 (10,625) (602) — — — 2,889 (13,741) (5) 5,383 22,790 8,860 Foreign exchange contracts—net 10,198 3,559 862 — — — 434 (1,118) (1,164) 12,771 6,085 Equity contracts—net 8,258 9,284 725 — — — (10,713) — (132) 7,422 8,565 Commodity contracts—net (45) 25 (4) — — — (6) — — (30) 26 Credit derivatives—net 660 (180) — — — — (64) — — 416 (179) Other—net (8) 349 60 — 670 (312) — — — — 767 58 Investment securities: Available-for-sale debt securities 204,805 (12,495) (3) 12,193 39 — — (7,598) — (743) 196,201 (390) (3) Corporate bonds 5,172 324 (139) — — — — — (743) 4,614 157 Residential mortgage-backed securities 15 — — — — — — — — 15 — Asset-backed securities 132,951 — 9,973 — — — — — — 142,924 9,973 Other debt securities 66,667 (12,819) 2,359 39 — — (7,598) — — 48,648 (10,520) Equity securities 87,814 (149) (3) 445 5,390 — (519) — 779 (1,892) 91,868 (542) (3) Nonmarketable equity securities 87,814 (149) 445 5,390 — (519) — 779 (1,892) 91,868 (542) Other 139,120 (400) (7) 133 8,898 — — (17,721) — — 130,030 (400) (7) Total ¥ 2,532,599 ¥ (97,217) ¥ 7,974 ¥ 371,777 ¥ (312) ¥ (2,578) ¥ (174,591) ¥ 64,404 ¥ 1,452 ¥ 2,703,508 ¥ (66,788) Liabilities Obligation to return securities received as collateral ¥ 71,399 ¥ — ¥ — ¥ — ¥ — ¥ — ¥ (17,572) ¥ — ¥ — ¥ 53,827 ¥ — Other 66,452 (2,319) (4) (3,502) — 9,028 — (21,879) 2,213 (6) (8,384) (6) 53,251 (48) (4) Total ¥ 137,851 ¥ (2,319) ¥ (3,502) ¥ — ¥ 9,028 ¥ — ¥ (39,451) ¥ 2,213 ¥ (8,384) ¥ 107,078 ¥ (48) Notes: (1) Includes Trading securities measured under the fair value option. (2) Included in Trading account profits (losses)—net and Foreign exchange gains (losses)—net. (3) Included in Investment securities gains (losses)—net and Other comprehensive income, net of tax. (4) Included in Trading account losses—net and Other comprehensive income, net of tax. (5) For the six months ended September 30, 2023 and 2024, transfers into Level 3 for Interest rate contracts—net were mainly caused by changes in the impact of unobservable input to the entire fair value measurement. Unobservable inputs include loss given default. Transfers into Level 3 for Corporate bonds were mainly caused by the increased impact of the Liquidity Premium on Fair Value. Transfers out of Level 3 for Interest rate contracts—net were mainly caused by changes in the impact of unobservable inputs to the fair value measurement of the multi-callable swaps. (6) Transfers into (out of) Level 3 for long-term debt in Other were mainly caused by the decrease (increase) in the observability of the key inputs to the valuation models and a corresponding increase (decrease) in the significance of the unobservable inputs. (7) Included in Other non-interest income. (8) Includes certain derivatives such as earthquake derivatives.
Quantitative Information About Level 3 Fair Value Measurements	The following tables present information on the valuation techniques, significant unobservable inputs and their ranges for each major category of assets and liabilities measured at fair value on a recurring basis and classified in Level 3: At March 31, 2024 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities and Investment securities: Asset-backed securities ¥ 1,248,241 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 1.4 % ~ 1.6 % 1.4 % Prepayment rate 17.7% 17.7 % Probability of default 0.0 % ~ 93.0 % — (3) Recovery rate 55.0% 55.0 % Other debt securities 587,272 Discounted cash flow Liquidity premium 0.9 % ~ 3.2 % 2.8 % At March 31, 2024 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net 41,687 Option model Correlation between interest rates 30.0 % ~ 60.7 % 44.6 % Correlation between interest rate and foreign exchange rate (2.0) % ~ 60.0 % 35.0 % Volatility 61.2 % ~ 80.6 % 75.6 % Foreign exchange contracts—net 9,800 Option model Correlation between interest rates 30.0 % ~ 70.0 % 48.2 % Correlation between interest rate and foreign exchange rate 17.6 % ~ 60.0 % 36.3 % Correlation between foreign exchange rates 50.0 % ~ 70.6 % 66.4 % Volatility 9.9 % ~ 21.3 % 14.1 % Equity contracts—net 4,414 Option model Correlation between foreign exchange rate and equity 0.0 % ~ 30.0 % 20.0 % Correlation between equities 5.0 % ~ 76.0 % 57.5 % Volatility 25.0 % ~ 37.0 % 33.9 % At September 30, 2024 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities and Investment securities: Corporate bonds ¥ 112,867 Discounted cash flow Liquidity premium 0.0 % ~ 0.2 % 0.1 % Asset-backed securities 1,324,522 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 1.2 % ~ 1.4 % 1.3 % Prepayment rate 25.4% 25.4 % Probability of default 0.0 % ~ 99.0 % — % (3) Recovery rate 63.1% 63.1 % Other debt securities 570,116 Discounted cash flow Liquidity premium 1.6 % ~ 3.2 % 2.9 % At September 30, 2024 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net 27,919 Option model Correlation between interest rates 30.0 % ~ 97.5 % 59.6 % Correlation between interest rate and foreign exchange rate 5.0 % ~ 60.0 % 34.5 % Volatility 71.2 % ~ 104.5 % 77.9 % Foreign exchange contracts—net 12,571 Option model Correlation between interest rates 30.0 % ~ 70.0 % 42.8 % Correlation between interest rate and foreign exchange rate 16.3 % ~ 60.0 % 33.6 % Correlation between foreign exchange rates 50.0 % ~ 66.4 % 58.2 % Volatility 10.6 % ~ 21.0 % 13.9 % Equity contracts—net 3,062 Option model Correlation between foreign exchange rate and equity 6.0 % ~ 25.0 % 10.0 % Correlation between equities 8.8 % ~ 95.0 % 59.6 % Volatility 23.0 % ~ 37.0 % 27.0 % Notes: (1) The fair value as of March 31, 2024 and September 30, 2024 excludes the fair value of investments valued using vendor prices. (2) Weighted average is calculated by weighing each input by the relative fair value of the respective financial instruments for investment securities. Median is used for derivative instruments. (3) See “Probability of default” in “Change in and range of unobservable inputs” in Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (4) For further detail of Internal model, refer to the last paragraph of “Trading Account Assets and Liabilities—Trading Account Securities” in Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024.
Carrying Value of Assets Measured at Fair Value on Nonrecurring Basis by Level	The following table presents the carrying value of assets measured at fair value on a nonrecurring basis by level within the fair value hierarchy as of March 31, 2024 and September 30, 2024: March 31, 2024 September 30, 2024 Level 1 Level 2 Level 3 Total carrying value Level 1 Level 2 Level 3 Total (in millions) Assets Investment securities (1)(2) ¥ — ¥ 9,460 ¥ 45,175 ¥ 54,635 ¥ — ¥ 12,290 ¥ 36,235 ¥ 48,525 Loans 2,271 5,181 630,005 637,457 1,990 4,689 570,953 577,632 Loans held for sale — — 472,711 472,711 — — 415,216 415,216 Collateral dependent loans 2,271 5,181 157,294 164,746 1,990 4,689 155,737 162,416 Premises and equipment — — 11,193 11,193 — — 5,902 5,902 Intangible assets — — 5,174 5,174 — — 169 169 Other assets — 32,481 18,567 51,048 — 5,154 16,218 21,372 Investments in equity method investees (1) — 27,801 1,702 29,503 — — 2,094 2,094 Other — 4,680 16,865 21,545 — 5,154 14,124 19,278 Total ¥ 2,271 ¥ 47,122 ¥ 710,114 ¥ 759,507 ¥ 1,990 ¥ 22,133 ¥ 629,477 ¥ 653,600 Notes: (1) Excludes certain investments valued at net asset value of ¥18,037 million and ¥19,833 million at March 31, 2024 and September 30, 2024, respectively. The unfunded commitments related to these investments are ¥24,208 million and ¥22,377 million at March 31, 2024 and September 30, 2024, respectively. These investments are in private equity funds. For the nature and details of private equity funds, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2024. (2) Includes certain nonmarketable equity securities that are measured at fair value on a nonrecurring basis, including impairment and observable price change for nonmarketable equity securities measured under the measurement alternative.
Losses (Gains) Recorded as a Result of Changes in Fair Value Measured on a Nonrecurring Basis	The following table presents losses recorded as a result of changes in the fair value of assets measured at fair value on a nonrecurring basis for the six months ended September 30, 2023 and 2024: Losses for the six months ended September 30, 2023 2024 (in millions) Investment securities ¥ 8,971 ¥ 8,473 Loans 45,660 23,967 Loans held for sale 11,096 1,480 Collateral dependent loans 34,564 22,487 Premises and equipment 1,142 13,072 Intangible assets 11,433 1,706 Other assets 24,286 15,257 Investments in equity method investees 12,687 274 Other 11,599 14,983 Total ¥ 91,492 ¥ 62,475
Gains (Losses) Related to Instruments for which Fair Value Option was Elected	The following table presents the gains or losses recorded for the six months ended September 30, 2023 and 2024 related to the eligible instruments for which the MUFG Group elected the fair value option: Six months ended September 30, 2023 2024 Trading account profits (losses) Foreign exchange gains (losses) Total changes in fair value Trading account profits (losses) Foreign exchange gains (losses) Total changes in fair value (in millions) Financial assets: Trading account securities ¥ (596,477) ¥ 1,762,384 ¥ 1,165,907 ¥ 384,525 ¥ (816,042) ¥ (431,517) Total ¥ (596,477) ¥ 1,762,384 ¥ 1,165,907 ¥ 384,525 ¥ (816,042) ¥ (431,517) Financial liabilities: Other short-term borrowings (1) ¥ 2,592 ¥ — ¥ 2,592 ¥ 6,225 ¥ — ¥ 6,225 Long-term debt (1) (5,617) — (5,617) 16,488 — 16,488 Total ¥ (3,025) ¥ — ¥ (3,025) ¥ 22,713 ¥ — ¥ 22,713 Note: (1) Change in value attributable to the instrument-specific credit risk related to those financial liabilities are not material.
Differences between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding	The following table presents the differences between the aggregate fair value and the aggregate remaining contractual principal balance outstanding as of March 31, 2024 and September 30, 2024 for long-term debt instruments for which the fair value option has been elected: March 31, 2024 September 30, 2024 Remaining aggregate contractual amounts outstanding Fair value Fair value over (under) remaining aggregate contractual amounts outstanding Remaining aggregate contractual amounts outstanding Fair value Fair value over (under) remaining aggregate contractual amounts outstanding (in millions) Financial liabilities: Long-term debt ¥ 246,153 ¥ 234,909 ¥ (11,244) ¥ 205,399 ¥ 200,462 ¥ (4,937) Total ¥ 246,153 ¥ 234,909 ¥ (11,244) ¥ 205,399 ¥ 200,462 ¥ (4,937)
Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments Not Carried at Fair Value on a Recurring Basis on Consolidated Balance Sheets by Level	The following is a summary of carrying amounts and estimated fair values by level within the fair value hierarchy of financial instruments which are not carried at fair value on a recurring basis in the accompanying condensed consolidated balance sheets as of March 31, 2024 and September 30, 2024: At March 31, 2024 Carrying amount Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 4,417 ¥ 4,417 ¥ 4,417 ¥ — ¥ — Interest-earning deposits in other banks 105,702 105,702 — 105,702 — Call loans and funds sold 1,738 1,738 — 1,738 — Receivables under resale agreements 18,824 18,824 — 18,824 — Receivables under securities borrowing transactions 5,001 5,001 — 5,001 — Investment securities 24,844 24,558 14,522 7,457 2,579 Loans, net of allowance for credit losses (1) 126,555 126,707 2 295 126,410 Other financial assets (2) 11,761 11,761 — 11,761 — Financial liabilities: Deposits Non-interest-bearing ¥ 38,805 ¥ 38,805 ¥ — ¥ 38,805 ¥ — Interest-bearing 208,360 208,512 — 208,512 — Total deposits 247,165 247,317 — 247,317 — Call money and funds purchased 5,094 5,094 — 5,094 — Payables under repurchase agreements 35,690 35,690 — 35,690 — Payables under securities lending transactions 1,017 1,017 — 1,017 — Due to trust account and other short-term borrowings 15,747 15,747 — 15,747 — Long-term debt 39,833 39,103 — 39,103 — Other financial liabilities 9,081 9,081 — 9,081 — At September 30, 2024 Carrying Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 4,056 ¥ 4,056 ¥ 4,056 ¥ — ¥ — Interest-earning deposits in other banks 104,084 104,084 — 104,084 — Call loans and funds sold 1,463 1,463 — 1,463 — Receivables under resale agreements 18,414 18,414 — 18,414 — Receivables under securities borrowing transactions 5,535 5,535 — 5,535 — Investment securities 22,739 22,549 12,927 7,799 1,823 Loans, net of allowance for credit losses (1) 128,849 129,101 2 298 128,801 Other financial assets (2) 9,453 9,453 — 9,453 — Financial liabilities: Deposits Non-interest-bearing ¥ 38,259 ¥ 38,259 ¥ — ¥ 38,259 ¥ — Interest-bearing 206,662 206,815 — 206,815 — Total deposits 244,921 245,074 — 245,074 — Call money and funds purchased 4,944 4,944 — 4,944 — Payables under repurchase agreements 37,724 37,724 — 37,724 — Payables under securities lending transactions 644 644 — 644 — Due to trust account and other short-term borrowings 27,278 27,278 — 27,278 — Long-term debt 24,418 23,958 — 23,958 — Other financial liabilities 8,192 8,192 — 8,192 — Notes: (1) Includes loans held for sale and collateral dependent loans measured at fair value on a nonrecurring basis. Refer to “Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis” for the details of the level classification. (2) Excludes investments in equity method investees of ¥4,116 billion and ¥4,197 billion at March 31, 2024 and September 30, 2024, respectively.

Investments in Equity Method _2

Investments in Equity Method Investees (Tables)	6 Months Ended
	Sep. 30, 2024
Equity Method Investments and Joint Ventures [Abstract]
Summarized Operating Results of Morgan Stanley	Summarized operating results of Morgan Stanley, the largest portion of the MUFG Group’s equity method investees, for the six months ended September 30, 2023 and 2024 are as follows: 2023 2024 (in billions) Net revenues ¥ 3,769 ¥ 4,640 Total non-interest expenses 2,887 3,351 Income from continuing operations before income taxes 840 1,266 Net income applicable to Morgan Stanley 647 956

Basis of Condensed Consolidat_4

Basis of Condensed Consolidated Financial Statements - Adjustments Condensed Consolidated Balance Sheets (Details) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Mar. 31, 2023
ASSETS
Cash and due from banks	¥ 4,055,804	¥ 4,416,646
Interest-earning deposits in other banks	104,083,772	105,701,977
Cash, due from banks and interest-earning deposits in other banks	108,139,576	110,118,623	¥ 109,067,365
Call loans, funds sold, and receivables under resale agreements	19,876,746	20,562,358
Receivables under securities borrowing transactions	5,535,122	5,000,816
Trading account assets	54,148,540	49,769,406
Investment securities:
Available-for-sale debt securities	26,962,826	31,422,967
Equity securities	5,125,231	6,132,369
Total investment securities	54,827,505	62,399,298
Loans, net of unearned income, unamortized premiums and deferred loan fees	130,245,363	127,910,303
Allowance for credit losses	(1,370,804)	(1,356,961)	(1,296,491)	¥ (1,279,514)
Net loans	128,874,559	126,553,342
Premises and equipment—net	879,296	872,641
Customers’ acceptance liability	454,608	435,072
Intangible assets—net	1,403,157	1,297,760
Goodwill	676,381	493,758	387,103	¥ 296,772
Other assets	18,122,265	20,380,462
Total assets	392,937,755	397,883,536
Deposits:
Overseas offices, principally interest-bearing	62,127,029	63,861,590
Total deposits	244,890,984	247,136,000
Call money, funds purchased, and payables under repurchase agreements	42,667,578	40,784,623
Payables under securities lending transactions	644,024	1,016,938
Due to trust account and other short-term borrowings	27,579,111	15,801,323
Trading account liabilities	16,849,318	16,579,522
Bank acceptances outstanding	454,608	435,072
Long-term debt	24,554,156	40,012,819
Other liabilities	15,816,923	17,600,152
Total liabilities	373,456,702	379,366,449
Commitments and contingent liabilities
Mitsubishi UFJ Financial Group shareholders’ equity:
Capital surplus	4,617,068	4,635,892
Retained earnings:
Unappropriated retained earnings	9,905,302	9,086,490
Accumulated other comprehensive income, net of taxes	2,480,877	2,237,625
Total Mitsubishi UFJ Financial Group shareholders’ equity	18,609,869	17,675,737
Noncontrolling interests	871,184	841,350
Total equity	19,481,053	18,517,087	17,491,649
Total liabilities and equity	392,937,755	397,883,536
Previously Reported
ASSETS
Cash and due from banks		4,391,530
Interest-earning deposits in other banks		105,631,633
Cash, due from banks and interest-earning deposits in other banks		110,023,163	108,911,256
Call loans, funds sold, and receivables under resale agreements		20,233,913
Receivables under securities borrowing transactions		5,000,989
Trading account assets		49,745,992
Investment securities:
Available-for-sale debt securities		31,395,372
Equity securities		6,132,092
Total investment securities		62,371,426
Loans, net of unearned income, unamortized premiums and deferred loan fees		127,936,495
Allowance for credit losses		(1,366,221)
Net loans		126,570,274
Premises and equipment—net		873,027
Customers’ acceptance liability		430,221
Intangible assets—net		1,298,966
Goodwill		490,344
Other assets		20,398,146
Total assets		397,436,461
Deposits:
Overseas offices, principally interest-bearing		63,142,974
Total deposits		246,417,384
Call money, funds purchased, and payables under repurchase agreements		40,804,921
Payables under securities lending transactions		1,016,931
Due to trust account and other short-term borrowings		15,796,947
Trading account liabilities		16,587,151
Bank acceptances outstanding		430,221
Long-term debt		39,922,322
Other liabilities		17,983,371
Total liabilities		378,959,248
Commitments and contingent liabilities
Mitsubishi UFJ Financial Group shareholders’ equity:
Capital surplus		4,636,097
Retained earnings:
Unappropriated retained earnings		9,072,572
Accumulated other comprehensive income, net of taxes		2,221,263
Total Mitsubishi UFJ Financial Group shareholders’ equity		17,645,662
Noncontrolling interests		831,551
Total equity		18,477,213	17,457,394
Total liabilities and equity		397,436,461
Adjustments
ASSETS
Cash and due from banks		25,116
Interest-earning deposits in other banks		70,344
Cash, due from banks and interest-earning deposits in other banks		95,460	156,109
Call loans, funds sold, and receivables under resale agreements	(328,578)	328,445
Receivables under securities borrowing transactions		(173)
Trading account assets		23,414
Investment securities:
Available-for-sale debt securities		27,595
Equity securities		277
Total investment securities		27,872
Loans, net of unearned income, unamortized premiums and deferred loan fees		(26,192)
Allowance for credit losses		9,260
Net loans	(214,790)	(16,932)
Premises and equipment—net		(386)
Customers’ acceptance liability		4,851
Intangible assets—net		(1,206)
Goodwill		3,414
Other assets		(17,684)
Total assets		447,075
Deposits:
Overseas offices, principally interest-bearing		718,616
Total deposits	766,141	718,616
Call money, funds purchased, and payables under repurchase agreements	(117,990)	(20,298)
Payables under securities lending transactions		7
Due to trust account and other short-term borrowings	¥ 224,595	4,376
Trading account liabilities		(7,629)
Bank acceptances outstanding		4,851
Long-term debt		90,497
Other liabilities		(383,219)
Total liabilities		407,201
Commitments and contingent liabilities
Mitsubishi UFJ Financial Group shareholders’ equity:
Capital surplus		(205)
Retained earnings:
Unappropriated retained earnings		13,918
Accumulated other comprehensive income, net of taxes		16,362
Total Mitsubishi UFJ Financial Group shareholders’ equity		30,075
Noncontrolling interests		9,799
Total equity		39,874	¥ 34,255
Total liabilities and equity		¥ 447,075

Basis of Condensed Consolidat_5

Basis of Condensed Consolidated Financial Statements - Adjustments Condensed Consolidated Statements of Income (Details) - JPY (¥) ¥ / shares in Units, ¥ in Millions		6 Months Ended
		Sep. 30, 2024	Sep. 30, 2023
Interest income:
Loans, including fees		¥ 2,348,070	¥ 2,041,490
Deposits in other banks		372,370	356,085
Investment securities		404,110	355,778
Trading account assets		500,730	360,961
Call loans, funds sold, and receivables under resale agreements and securities borrowing transactions		477,197	196,471
Total		4,102,477	3,310,785
Interest expense:
Deposits		1,462,814	1,148,078
Call money, funds purchased, and payables under repurchase agreements and securities lending transactions		674,879	462,294
Due to trust account, other short-term borrowings and trading account liabilities		219,395	178,803
Long-term debt		255,240	255,163
Total		2,612,328	2,044,338
Net interest income		1,490,149	1,266,447
Provision for credit losses		128,584	71,912
Net interest income after provision for credit losses		1,361,565	1,194,535
Non-interest income:
Fees and commissions income		1,013,028	886,230
Foreign exchange gains (losses) —net		202,840	(324,851)
Trading account profits (losses) —net		537,284	(945,382)
Investment securities gains (losses) —net		(485,145)	746,078
Equity in earnings of equity method investees—net		316,339	215,049
Other non-interest income		109,559	87,164
Total		1,693,905	664,288
Non-interest expense:
Salaries and employee benefits		714,830	628,765
Occupancy expenses—net		78,751	77,676
Fees and commissions expenses		203,719	190,172
Outsourcing expenses, including data processing		154,441	161,824
Depreciation of premises and equipment		41,685	36,192
Amortization of intangible assets		145,379	142,271
Insurance premiums, including deposit insurance		48,618	45,062
Communications		31,406	29,731
Taxes and public charges		58,868	53,632
Reversal of off-balance sheet credit instruments		(1,342)	(4,001)
Other non-interest expenses		235,038	208,874
Total		1,711,393	1,570,198
Income before income tax expense		1,344,077	288,625
Income tax expense		348,694	16,664
Net income before attribution of noncontrolling interests		995,383	271,961
Net income (loss) attributable to noncontrolling interests		(63,838)	38,088
Net income attributable to Mitsubishi UFJ Financial Group		1,059,221	233,873
Income used for the computation of basic EPS and diluted EPS (Numerator):
Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions		¥ 1,056,671	¥ 232,421
Earnings per common share applicable to common shareholders of Mitsubishi UFJ Financial Group
Basic earnings (loss) per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)		¥ 90.55	¥ 19.43
Diluted earnings (loss) per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)	[1]	¥ 90.33	¥ 19.31
Previously Reported
Interest income:
Loans, including fees			¥ 2,011,363
Deposits in other banks			355,192
Investment securities			355,121
Trading account assets			360,921
Call loans, funds sold, and receivables under resale agreements and securities borrowing transactions			193,947
Total			3,276,544
Interest expense:
Deposits			1,142,035
Call money, funds purchased, and payables under repurchase agreements and securities lending transactions			461,932
Due to trust account, other short-term borrowings and trading account liabilities			174,949
Long-term debt			252,757
Total			2,031,673
Net interest income			1,244,871
Provision for credit losses			61,772
Net interest income after provision for credit losses			1,183,099
Non-interest income:
Fees and commissions income			881,258
Foreign exchange gains (losses) —net			(329,089)
Trading account profits (losses) —net			(940,660)
Investment securities gains (losses) —net			743,395
Equity in earnings of equity method investees—net			214,835
Other non-interest income			86,876
Total			656,615
Non-interest expense:
Salaries and employee benefits			623,877
Occupancy expenses—net			76,784
Fees and commissions expenses			189,657
Outsourcing expenses, including data processing			162,312
Depreciation of premises and equipment			35,813
Amortization of intangible assets			141,668
Insurance premiums, including deposit insurance			44,684
Communications			29,391
Taxes and public charges			52,467
Reversal of off-balance sheet credit instruments			(3,646)
Other non-interest expenses			202,385
Total			1,555,392
Income before income tax expense			284,322
Income tax expense			15,864
Net income before attribution of noncontrolling interests			268,458
Net income (loss) attributable to noncontrolling interests			37,677
Net income attributable to Mitsubishi UFJ Financial Group			230,781
Income used for the computation of basic EPS and diluted EPS (Numerator):
Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions			¥ 229,329
Earnings per common share applicable to common shareholders of Mitsubishi UFJ Financial Group
Basic earnings (loss) per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)			¥ 19.17
Diluted earnings (loss) per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)			¥ 19.05
Adjustments
Interest income:
Loans, including fees			¥ 30,127
Deposits in other banks			893
Investment securities			657
Trading account assets			40
Call loans, funds sold, and receivables under resale agreements and securities borrowing transactions			2,524
Total			34,241
Interest expense:
Deposits			6,043
Call money, funds purchased, and payables under repurchase agreements and securities lending transactions			362
Due to trust account, other short-term borrowings and trading account liabilities			3,854
Long-term debt			2,406
Total			12,665
Net interest income			21,576
Provision for credit losses			10,140
Net interest income after provision for credit losses			11,436
Non-interest income:
Fees and commissions income			4,972
Foreign exchange gains (losses) —net			4,238
Trading account profits (losses) —net			(4,722)
Investment securities gains (losses) —net			2,683
Equity in earnings of equity method investees—net			214
Other non-interest income			288
Total			7,673
Non-interest expense:
Salaries and employee benefits			4,888
Occupancy expenses—net			892
Fees and commissions expenses			515
Outsourcing expenses, including data processing			(488)
Depreciation of premises and equipment			379
Amortization of intangible assets			603
Insurance premiums, including deposit insurance			378
Communications			340
Taxes and public charges			1,165
Reversal of off-balance sheet credit instruments			(355)
Other non-interest expenses			6,489
Total			14,806
Income before income tax expense			4,303
Income tax expense			800
Net income before attribution of noncontrolling interests			3,503
Net income (loss) attributable to noncontrolling interests			411
Net income attributable to Mitsubishi UFJ Financial Group			3,092
Income used for the computation of basic EPS and diluted EPS (Numerator):
Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions			¥ 3,092
Earnings per common share applicable to common shareholders of Mitsubishi UFJ Financial Group
Basic earnings (loss) per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)			¥ 0.26
Diluted earnings (loss) per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)			¥ 0.26
[1] For the six months ended September 30, 2023 the performance-based plan under the Board Incentive Plan could potentially dilute earnings per common share but were not included in the computation of diluted earnings per common share due to their antidilutive effects.

Basis of Condensed Consolidat_6

Basis of Condensed Consolidated Financial Statements - Adjustments Condensed Consolidated Statements of Comprehensive Income (Details) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income before attribution of noncontrolling interests	¥ 995,383	¥ 271,961
Other comprehensive income, net of tax:
Net unrealized gains (losses) on investment securities	78,649	(162,736)
Net unrealized gains on derivatives qualifying for cash flow hedges	232	1,404
Defined benefit plans	(24,099)	48,984
Foreign currency translation adjustments	286,518	1,023,535
Total	344,351	888,927
Comprehensive income	1,339,734	1,160,888
Net income (loss) attributable to noncontrolling interests	(63,838)	38,088
Other comprehensive income attributable to noncontrolling interests	101,099	68,110
Comprehensive income attributable to Mitsubishi UFJ Financial Group	¥ 1,302,473	1,054,690
Previously Reported
Statement of Comprehensive Income [Abstract]
Net income before attribution of noncontrolling interests		268,458
Other comprehensive income, net of tax:
Net unrealized gains (losses) on investment securities		(162,130)
Net unrealized gains on derivatives qualifying for cash flow hedges		15
Defined benefit plans		48,965
Foreign currency translation adjustments		1,050,954
Total		915,544
Comprehensive income		1,184,002
Net income (loss) attributable to noncontrolling interests		37,677
Other comprehensive income attributable to noncontrolling interests		74,729
Comprehensive income attributable to Mitsubishi UFJ Financial Group		1,071,596
Adjustments
Statement of Comprehensive Income [Abstract]
Net income before attribution of noncontrolling interests		3,503
Other comprehensive income, net of tax:
Net unrealized gains (losses) on investment securities		(606)
Net unrealized gains on derivatives qualifying for cash flow hedges		1,389
Defined benefit plans		19
Foreign currency translation adjustments		(27,419)
Total		(26,617)
Comprehensive income		(23,114)
Net income (loss) attributable to noncontrolling interests		411
Other comprehensive income attributable to noncontrolling interests		(6,619)
Comprehensive income attributable to Mitsubishi UFJ Financial Group		¥ (16,906)

Basis of Condensed Consolidat_7

Basis of Condensed Consolidated Financial Statements - Adjustments Condensed Consolidated Statements of Equity (Details) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	¥ 18,517,087
Net change during the period	344,351	¥ 888,927
Net income before attribution of noncontrolling interests	995,383	271,961
Balance at end of period	19,481,053	17,491,649
Capital surplus:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	4,635,892	4,902,155
Other—net	(5,569)	(468)
Balance at end of period	4,617,068	4,895,004
Unappropriated retained earnings:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	9,086,490	8,185,880
Net income before attribution of noncontrolling interests	1,059,221	233,873
Balance at end of period	9,905,302	8,241,034
Accumulated other comprehensive income, net of taxes:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	2,237,625	871,054
Net change during the period	243,252	820,817
Balance at end of period	2,480,877	1,691,871
Total Mitsubishi UFJ Financial Group shareholders’ equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at end of period	18,609,869	16,676,513
Noncontrolling interests:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	841,350	717,219
Other—net	78	(186)
Net change during the period	101,099	68,110
Initial subscriptions of noncontrolling interests	2,363	34,219
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders	13,992	(16,735)
Net income before attribution of noncontrolling interests	(63,838)	38,088
Dividends paid to noncontrolling interests	(22,788)	(17,357)
Balance at end of period	871,184	815,136
Previously Reported
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	18,477,213
Net change during the period		915,544
Net income before attribution of noncontrolling interests		268,458
Balance at end of period		17,457,394
Previously Reported | Capital surplus:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other—net		(467)
Balance at end of period		4,895,005
Previously Reported | Unappropriated retained earnings:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		8,169,710
Net income before attribution of noncontrolling interests		230,781
Balance at end of period		8,221,772
Previously Reported | Accumulated other comprehensive income, net of taxes:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		844,192
Net change during the period		840,815
Balance at end of period		1,685,007
Previously Reported | Total Mitsubishi UFJ Financial Group shareholders’ equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at end of period		16,650,388
Previously Reported | Noncontrolling interests:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		702,821
Other—net		(231)
Net change during the period		74,729
Initial subscriptions of noncontrolling interests		34,317
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders		(16,734)
Net income before attribution of noncontrolling interests		37,677
Dividends paid to noncontrolling interests		(17,351)
Balance at end of period		807,006
Adjustments
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	¥ 39,874
Net change during the period		(26,617)
Net income before attribution of noncontrolling interests		3,503
Balance at end of period		34,255
Adjustments | Capital surplus:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other—net		(1)
Balance at end of period		(1)
Adjustments | Unappropriated retained earnings:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		16,170
Net income before attribution of noncontrolling interests		3,092
Balance at end of period		19,262
Adjustments | Accumulated other comprehensive income, net of taxes:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		26,862
Net change during the period		(19,998)
Balance at end of period		6,864
Adjustments | Total Mitsubishi UFJ Financial Group shareholders’ equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at end of period		26,125
Adjustments | Noncontrolling interests:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		14,398
Other—net		45
Net change during the period		(6,619)
Initial subscriptions of noncontrolling interests		(98)
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders		(1)
Net income before attribution of noncontrolling interests		411
Dividends paid to noncontrolling interests		(6)
Balance at end of period		¥ 8,130

Basis of Condensed Consolidat_8

Basis of Condensed Consolidated Financial Statements - Adjustments Condensed Consolidated Statements of Cash Flows (Details) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024
Cash flows from operating activities:
Net income before attribution of noncontrolling interests	¥ 995,383	¥ 271,961
Adjustments to reconcile net income before attribution of noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization	187,064	178,463
Provision for credit losses	128,584	71,912
Investment securities (gains) losses—net	485,145	(746,078)
Foreign exchange (gains) losses—net	(581,822)	518,663
Equity in earnings of equity method investees—net	(316,339)	(215,049)
Benefit for deferred income tax expense	96,801	(199,482)
Increase in trading account assets, excluding foreign exchange contracts	(1,776,220)	(4,404,033)
Increase (decrease) in trading account liabilities, excluding foreign exchange contracts	(425,212)	4,094,299
Increase in accrued interest receivable and other receivables	(19,556)	(186,264)
Decrease in accrued interest payable and other payables	(377,251)	(644,637)
Net increase (decrease) in accrued income taxes and decrease (increase) in income tax receivables	77,897	(55,050)
Net decrease (increase) in collateral for derivative transactions	409,188	(755,572)
Other—net	(280,849)	170,837
Net cash used in operating activities	(524,187)	(1,900,030)
Cash flows from investing activities:
Proceeds from sales of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)	25,573,028	35,279,573
Proceeds from maturities of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)	23,391,946	15,219,441
Purchases of Available-for-sale debt securities (including purchases of debt securities under the fair value option) (Note 3)	(47,046,817)	(42,843,667)
Proceeds from sales and redemption of Equity securities (including proceeds from equity securities under the fair value option)	2,234,565	1,192,555
Purchases of Equity securities (including purchases of equity securities under the fair value option)	(1,641,403)	(1,350,235)
Net decrease (increase) in loans	(3,214,221)	1,374,285
Net decrease (increase) in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions	1,637,142	(2,421,615)
Capital expenditures for premises and equipment	(58,288)	(47,850)
Purchases of intangible assets	(148,415)	(152,945)
Other—net	72,101	(15,465)
Net cash provided by investing activities	2,542,341	3,809,239
Cash flows from financing activities:
Net increase (decrease) in deposits	(932,669)	2,126,968
Net increase (decrease) in call money, funds purchased, and payables under repurchase agreements and securities lending transactions	729,760	(9,762,605)
Net increase (decrease) in due to trust account and other short-term borrowings	11,713,964	(475,580)
Proceeds from issuance of long-term debt	1,329,247	2,012,445
Repayments of long-term debt	(16,446,445)	(2,022,621)
Other—net	(3,780)	(43,706)
Net cash used in financing activities	(3,957,629)	(8,355,976)
Effect of exchange rate changes on cash and cash equivalents	(36,770)	1,559,746
Net decrease in cash and cash equivalents	(1,976,245)	(4,887,021)
Cash and cash equivalents at beginning of period	110,124,736	113,957,445
Cash and cash equivalents:
Cash, due from banks and interest-earning deposits in other banks	108,139,576	109,067,365	¥ 110,118,623
Cash and cash equivalents at end of period	108,148,491	109,070,424	110,124,736
Cash paid during the period for:
Interest		1,988,319
Income taxes, net of refunds	173,996	271,196
Non-cash investing and financing activities:
Assets acquired under finance lease arrangements	6,988	9,620
Assets acquired under operating lease arrangements	22,618	22,865
Previously Reported
Cash flows from operating activities:
Net income before attribution of noncontrolling interests		268,458
Adjustments to reconcile net income before attribution of noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization		177,481
Provision for credit losses		61,772
Investment securities (gains) losses—net		(743,395)
Foreign exchange (gains) losses—net		484,560
Equity in earnings of equity method investees—net		(214,835)
Benefit for deferred income tax expense		(200,007)
Increase in trading account assets, excluding foreign exchange contracts		(4,405,363)
Increase (decrease) in trading account liabilities, excluding foreign exchange contracts		4,082,033
Increase in accrued interest receivable and other receivables		(138,342)
Decrease in accrued interest payable and other payables		(663,358)
Net increase (decrease) in accrued income taxes and decrease (increase) in income tax receivables		(38,880)
Net decrease (increase) in collateral for derivative transactions		(737,229)
Other—net		(15,161)
Net cash used in operating activities		(2,082,266)
Cash flows from investing activities:
Proceeds from sales of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)		35,278,674
Proceeds from maturities of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)		15,222,492
Purchases of Available-for-sale debt securities (including purchases of debt securities under the fair value option) (Note 3)		(42,823,777)
Proceeds from sales and redemption of Equity securities (including proceeds from equity securities under the fair value option)		1,193,033
Purchases of Equity securities (including purchases of equity securities under the fair value option)		(1,351,798)
Net decrease (increase) in loans		1,252,246
Net decrease (increase) in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions		(2,635,756)
Capital expenditures for premises and equipment		(47,932)
Purchases of intangible assets		(152,072)
Other—net		(31,191)
Net cash provided by investing activities		3,487,317
Cash flows from financing activities:
Net increase (decrease) in deposits		2,421,039
Net increase (decrease) in call money, funds purchased, and payables under repurchase agreements and securities lending transactions		(9,771,370)
Net increase (decrease) in due to trust account and other short-term borrowings		(521,193)
Proceeds from issuance of long-term debt		2,022,741
Repayments of long-term debt		(2,021,065)
Other—net		(43,203)
Net cash used in financing activities		(8,103,928)
Effect of exchange rate changes on cash and cash equivalents		1,569,102
Net decrease in cash and cash equivalents		(5,129,775)
Cash and cash equivalents at beginning of period		114,044,090
Cash and cash equivalents:
Cash, due from banks and interest-earning deposits in other banks		108,911,256	110,023,163
Cash and cash equivalents at end of period		108,914,315
Cash paid during the period for:
Interest		1,983,677
Income taxes, net of refunds		254,751
Non-cash investing and financing activities:
Assets acquired under finance lease arrangements		5,022
Assets acquired under operating lease arrangements		22,905
Adjustments
Cash flows from operating activities:
Net income before attribution of noncontrolling interests		3,503
Adjustments to reconcile net income before attribution of noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization		982
Provision for credit losses		10,140
Investment securities (gains) losses—net		(2,683)
Foreign exchange (gains) losses—net		34,103
Equity in earnings of equity method investees—net		(214)
Benefit for deferred income tax expense		525
Increase in trading account assets, excluding foreign exchange contracts		1,330
Increase (decrease) in trading account liabilities, excluding foreign exchange contracts		12,266
Increase in accrued interest receivable and other receivables		(47,922)
Decrease in accrued interest payable and other payables		18,721
Net increase (decrease) in accrued income taxes and decrease (increase) in income tax receivables		(16,170)
Net decrease (increase) in collateral for derivative transactions	44,622	(18,343)
Other—net		185,998
Net cash used in operating activities		182,236
Cash flows from investing activities:
Proceeds from sales of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)		899
Proceeds from maturities of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)		(3,051)
Purchases of Available-for-sale debt securities (including purchases of debt securities under the fair value option) (Note 3)		(19,890)
Proceeds from sales and redemption of Equity securities (including proceeds from equity securities under the fair value option)		(478)
Purchases of Equity securities (including purchases of equity securities under the fair value option)		1,563
Net decrease (increase) in loans		122,039
Net decrease (increase) in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions		214,141
Capital expenditures for premises and equipment		82
Purchases of intangible assets		(873)
Other—net		15,726
Net cash provided by investing activities		321,922
Cash flows from financing activities:
Net increase (decrease) in deposits		(294,071)
Net increase (decrease) in call money, funds purchased, and payables under repurchase agreements and securities lending transactions		8,765
Net increase (decrease) in due to trust account and other short-term borrowings		45,613
Proceeds from issuance of long-term debt		(10,296)
Repayments of long-term debt		(1,556)
Other—net		(503)
Net cash used in financing activities		(252,048)
Effect of exchange rate changes on cash and cash equivalents		(9,356)
Net decrease in cash and cash equivalents		242,754
Cash and cash equivalents at beginning of period		(86,645)
Cash and cash equivalents:
Cash, due from banks and interest-earning deposits in other banks		156,109	¥ 95,460
Cash and cash equivalents at end of period		156,109
Cash paid during the period for:
Interest		4,642
Income taxes, net of refunds		16,445
Non-cash investing and financing activities:
Assets acquired under finance lease arrangements		4,598
Assets acquired under operating lease arrangements		(40)
HC Philippines
Cash flows from investing activities:
Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK, net of cash acquired	0	(64,104)
Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK
Fair value of assets acquired, excluding cash and cash equivalents	¥ 0	159,331
HC Philippines | Previously Reported
Cash flows from investing activities:
Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK, net of cash acquired		(55,868)
Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK
Fair value of assets acquired, excluding cash and cash equivalents		151,231
HC Philippines | Adjustments
Cash flows from investing activities:
Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK, net of cash acquired		(8,236)
Acquisition of HC Consumer Finance Philippines, Inc., a subsidiary of BK
Fair value of assets acquired, excluding cash and cash equivalents		¥ 8,100

Basis of Condensed Consolidat_9

Basis of Condensed Consolidated Financial Statements - Narrative (Details) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net decrease (increase) in collateral for derivative transactions	¥ 409,188	¥ (755,572)
Net adjustment in loans	(128,874,559)		¥ (126,553,342)
Call loans, funds sold, and receivables under resale agreements	(19,876,746)		(20,562,358)
Deposits	244,890,984		247,136,000
Call money, funds purchased, and payables under repurchase agreements	(42,667,578)		(40,784,623)
Due to trust account and other short-term borrowings	27,579,111		15,801,323
Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net decrease (increase) in collateral for derivative transactions	44,622	¥ (18,343)
Net adjustment in loans	214,790		16,932
Call loans, funds sold, and receivables under resale agreements	328,578		(328,445)
Deposits	766,141		718,616
Call money, funds purchased, and payables under repurchase agreements	117,990		20,298
Due to trust account and other short-term borrowings	¥ 224,595		¥ 4,376

Business Developments - Narrati

Business Developments - Narrative (Details) - JPY (¥) ¥ in Millions		6 Months Ended
	May 16, 2024	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024	Mar. 31, 2023
Business Developments [Line Items]
Goodwill		¥ 676,381	¥ 387,103	¥ 493,758	¥ 296,772
Link
Business Developments [Line Items]
Percentage of voting interests acquired	100%
Payment in cash	¥ 113,523
Acquisition related costs		3,856
Assets acquired	152,035
Cash and bank deposits from acquisition	21,586
Liabilities acquired	189,312
Long-term borrowings	118,440
Goodwill	151,774
Intangible assets from acquisition	¥ 46,878
Weighted average amortization period, in years	17 years 9 months 18 days
Revenue of acquiree since acquisition date		13,354
Net loss of acquiree since acquisition date		114
Intangible assets amortization accounting adjustments		¥ 1,271	¥ 1,158
Link | Customer relationships
Business Developments [Line Items]
Intangible assets from acquisition	¥ 69,021

Business Developments (Pro form

Business Developments (Pro forma statements of operations) (Details) - Link - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Business Developments [Line Items]
Total revenue	¥ 58,886	¥ 74,696
Net income attributable to Mitsubishi UFJ Financial Group	¥ 4,678	¥ 19,964

Investment Securities (Amortize

Investment Securities (Amortized Cost, Gross Unrealized Gains (Losses) and Fair Value of Investment Securities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	¥ 27,135,940	¥ 31,668,629
Available-for-sale debt securities, Gross unrealized gains	52,713	34,586
Available-for-sale debt securities, Gross unrealized losses	225,827	280,248
Available-for-sale debt securities	26,962,826	31,422,967
Held-to-maturity debt securities, Amortized cost	22,739,448	24,843,962
Held-to-maturity debt securities, Gross unrealized gains	50,169	13,720
Held-to-maturity debt securities, Gross unrealized losses	240,984	300,168
Held-to-maturity debt securities, fair value	22,548,633	24,557,514
Japanese national government and Japanese government agency bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	18,761,335	23,287,730
Available-for-sale debt securities, Gross unrealized gains	10,245	5,768
Available-for-sale debt securities, Gross unrealized losses	131,338	126,098
Available-for-sale debt securities	18,640,242	23,167,400
Held-to-maturity debt securities, Amortized cost	13,842,654	15,191,741
Held-to-maturity debt securities, Gross unrealized gains	14,647	4,745
Held-to-maturity debt securities, Gross unrealized losses	133,864	97,603
Held-to-maturity debt securities, fair value	13,723,437	15,098,883
Japanese prefectural and municipal bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	871,795	1,055,564
Available-for-sale debt securities, Gross unrealized gains	11	227
Available-for-sale debt securities, Gross unrealized losses	11,188	9,800
Available-for-sale debt securities	860,618	1,045,991
Held-to-maturity debt securities, Amortized cost	2,216,346	1,999,182
Held-to-maturity debt securities, Gross unrealized gains	987	2,048
Held-to-maturity debt securities, Gross unrealized losses	23,987	16,328
Held-to-maturity debt securities, fair value	2,193,346	1,984,902
Foreign government and official institution bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	3,487,233	3,428,199
Available-for-sale debt securities, Gross unrealized gains	16,365	4,981
Available-for-sale debt securities, Gross unrealized losses	73,603	130,629
Available-for-sale debt securities	3,429,995	3,302,551
Corporate bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	937,702	1,019,832
Available-for-sale debt securities, Gross unrealized gains	9,761	10,685
Available-for-sale debt securities, Gross unrealized losses	5,440	4,049
Available-for-sale debt securities	942,023	1,026,468
Held-to-maturity debt securities, Amortized cost	191,305	119,490
Held-to-maturity debt securities, Gross unrealized gains	157	93
Held-to-maturity debt securities, Gross unrealized losses	544	179
Held-to-maturity debt securities, fair value	190,918	119,404
Residential mortgage-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,173,805	1,229,615
Available-for-sale debt securities, Gross unrealized gains	266	255
Available-for-sale debt securities, Gross unrealized losses	314	345
Available-for-sale debt securities	1,173,757	1,229,525
Held-to-maturity debt securities, Amortized cost	4,670,796	4,952,083
Held-to-maturity debt securities, Gross unrealized gains	29,014	3,153
Held-to-maturity debt securities, Gross unrealized losses	81,381	179,537
Held-to-maturity debt securities, fair value	4,618,429	4,775,699
Asset-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,402,431	1,239,772
Available-for-sale debt securities, Gross unrealized gains	10,739	9,251
Available-for-sale debt securities, Gross unrealized losses	515	1,877
Available-for-sale debt securities	1,412,655	1,247,146
Held-to-maturity debt securities, Amortized cost	1,818,347	2,581,466
Held-to-maturity debt securities, Gross unrealized gains	5,364	3,681
Held-to-maturity debt securities, Gross unrealized losses	1,208	6,521
Held-to-maturity debt securities, fair value	1,822,503	2,578,626
Other debt securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	501,639	407,917
Available-for-sale debt securities, Gross unrealized gains	5,326	3,419
Available-for-sale debt securities, Gross unrealized losses	3,429	7,450
Available-for-sale debt securities	¥ 503,536	¥ 403,886

Investment Securities (Amorti_2

Investment Securities (Amortized Cost and Fair Value by Contractual Maturity) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Held-to-maturity debt securities, Amortized cost:
Due in one year or less	¥ 2,484,027
Due from one year to five years	8,156,136
Due from five years to ten years	6,548,526
Due after ten years	5,550,759
Held-to-maturity debt securities, Amortized cost	22,739,448	¥ 24,843,962
Held-to-maturity debt securities, Fair value:
Due in one year or less	2,481,938
Due from one year to five years	8,089,148
Due from five years to ten years	6,475,490
Due after ten years	5,502,057
Held-to-maturity debt securities, Fair value	22,548,633	24,557,514
Available-for-sale debt securities, Fair value:
Due in one year or less	16,621,054
Due from one year to five years	5,235,427
Due from five years to ten years	2,182,338
Due after ten years	2,924,007
Available-for-sale debt securities, Fair value	¥ 26,962,826	¥ 31,422,967

Investment Securities (Narrativ

Investment Securities (Narrative) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Investment Securities [Line Items]
Gross realized gains on sales of Available-for-sale debt securities	¥ 36,529	¥ 79,165
Gross realized losses on sales of available-for-sale debt securities	33,773	26,596
Investment securities (gains) losses—net	485,145	¥ (746,078)
Other debt securities
Investment Securities [Line Items]
Investment securities (gains) losses—net	¥ 12,825

Investment Securities (Investme

Investment Securities (Investments by Length and Category in Continuous Loss Position) (Detail) ¥ in Millions	Sep. 30, 2024 JPY (¥) security	Mar. 31, 2024 JPY (¥) security
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 13,647,976	¥ 19,994,182
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	10,609	20,779
Available-for-sale debt securities, Fair value, 12 months or more	5,076,248	5,230,206
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	215,218	259,469
Available-for-sale debt securities, Fair value, Total	18,724,224	25,224,388
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 225,827	¥ 280,248
Available-for-sale debt securities, Number of securities | security	1,525	1,507
Japanese national government and Japanese government agency bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 12,386,848	¥ 18,640,364
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	5,407	9,427
Available-for-sale debt securities, Fair value, 12 months or more	1,757,038	1,756,792
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	125,931	116,671
Available-for-sale debt securities, Fair value, Total	14,143,886	20,397,156
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 131,338	¥ 126,098
Available-for-sale debt securities, Number of securities | security	417	440
Japanese prefectural and municipal bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 167,167	¥ 416,047
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	610	1,502
Available-for-sale debt securities, Fair value, 12 months or more	672,133	520,133
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	10,578	8,298
Available-for-sale debt securities, Fair value, Total	839,300	936,180
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 11,188	¥ 9,800
Available-for-sale debt securities, Number of securities | security	529	574
Foreign government and official institution bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 255,136	¥ 358,973
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	2,852	9,306
Available-for-sale debt securities, Fair value, 12 months or more	1,765,019	1,942,369
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	70,751	121,323
Available-for-sale debt securities, Fair value, Total	2,020,155	2,301,342
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 73,603	¥ 130,629
Available-for-sale debt securities, Number of securities | security	83	97
Corporate bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 150,753	¥ 167,004
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	1,119	467
Available-for-sale debt securities, Fair value, 12 months or more	459,710	442,274
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	4,321	3,582
Available-for-sale debt securities, Fair value, Total	610,463	609,278
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 5,440	¥ 4,049
Available-for-sale debt securities, Number of securities | security	369	309
Residential mortgage-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 207,273	¥ 185,197
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	15	14
Available-for-sale debt securities, Fair value, 12 months or more	326,360	343,621
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	299	331
Available-for-sale debt securities, Fair value, Total	533,633	528,818
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 314	¥ 345
Available-for-sale debt securities, Number of securities | security	15	14
Asset-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 118,095	¥ 23,810
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	285	9
Available-for-sale debt securities, Fair value, 12 months or more	45,666	160,109
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	230	1,868
Available-for-sale debt securities, Fair value, Total	163,761	183,919
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 515	¥ 1,877
Available-for-sale debt securities, Number of securities | security	19	17
Other debt securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 362,704	¥ 202,787
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	321	54
Available-for-sale debt securities, Fair value, 12 months or more	50,322	64,908
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	3,108	7,396
Available-for-sale debt securities, Fair value, Total	413,026	267,695
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 3,429	¥ 7,450
Available-for-sale debt securities, Number of securities | security	93	56

Investment Securities (Net Real

Investment Securities (Net Realized Gains (Losses) on Sales of Equity Securities and Net Unrealized Gains (Losses) on Equity Securities still held) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Net gains (losses) recognized during the period	¥ (474,755)	¥ 689,090
Net gains (losses) recognized during the period on equity securities sold during the period	(97,385)	19,247
Net unrealized gains (losses) recognized during the reporting period still held at the reporting date	¥ (377,370)	¥ 669,843

Investment Securities (Carrying

Investment Securities (Carrying Value of Nonmarketable Equity Securities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Nonmarketable equity securities | Measurement Alternative
Investment Securities [Line Items]
Measurement alternative balance	¥ 571,434	¥ 483,218

Investment Securities (Related

Investment Securities (Related Adjustments for Nonmarketable Equity Securities) (Detail) - Nonmarketable equity securities - Measurement Alternative - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024
Investment Securities [Line Items]
Measurement alternative impairment losses	¥ (14,782)	¥ (8,187)
Measurement alternative downward changes for observable prices	0	(1,567)
Measurement alternative upward changes for observable prices	6,309	¥ 783
Cumulative impairment losses	43,714		¥ 29,569
Cumulative downward changes for observable prices	2,961		2,961
Cumulative upward changes for observable prices	¥ 64,386		¥ 58,104

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses (Total Outstanding Loans and Past Due Analysis) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	¥ 130,730,553	¥ 128,397,012
Loans Held for Sale	948,192	971,514
Past Due 90 Days and Accruing	12,001	20,148
Unearned income, unamortized premiums—net and deferred loan fees—net	(485,190)	(486,709)
Total	130,245,363	127,910,303
1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	315,538	328,332
Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	342,715	294,285
Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	658,253	622,617
Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	129,124,108	126,802,881
Residential
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	12,421,037	12,497,378
Loans Held for Sale	0	0
Past Due 90 Days and Accruing	3,384	3,837
Residential | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	32,170	33,943
Residential | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	10,943	11,980
Residential | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	43,113	45,923
Residential | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	12,377,924	12,451,455
Card
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	484,879	484,850
Loans Held for Sale	0	0
Past Due 90 Days and Accruing	0	0
Card | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	15,590	15,790
Card | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	29,151	28,388
Card | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	44,741	44,178
Card | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	440,138	440,672
Krungsri
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	9,015,732	8,805,112
Loans Held for Sale	11,285	17,930
Past Due 90 Days and Accruing	0	0
Krungsri | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	232,459	247,919
Krungsri | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	236,768	189,558
Krungsri | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	469,227	437,477
Krungsri | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	8,535,220	8,349,705
Other
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	1,992,099	1,758,167
Loans Held for Sale	0	0
Past Due 90 Days and Accruing	0	0
Other | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	25,262	23,125
Other | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	33,647	28,553
Other | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	58,909	51,678
Other | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	1,933,190	1,706,489
Domestic | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	62,180,544	57,498,290
Loans Held for Sale	139,218	112,496
Past Due 90 Days and Accruing	3,441	3,004
Domestic | Commercial | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	9,373	6,108
Domestic | Commercial | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	8,091	8,289
Domestic | Commercial | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	17,464	14,397
Domestic | Commercial | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	62,023,862	57,371,397
Foreign | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	44,636,262	47,353,215
Loans Held for Sale	797,689	841,088
Past Due 90 Days and Accruing	5,176	13,307
Foreign | Commercial | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	684	1,447
Foreign | Commercial | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	24,115	27,517
Foreign | Commercial | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	24,799	28,964
Foreign | Commercial | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	¥ 43,813,774	¥ 46,483,163

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses (Narrative) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024
Financing Receivable, Allowance for Credit Losses [Line Items]
Accounts receivable: other	¥ 1,919,320		¥ 1,951,742
Accrued interest receivable	694,666		¥ 737,947
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Significant sales of loans	¥ 1,761,000	¥ 1,206,000
Commercial | Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans contractually past due before being placed on nonaccrual status, in month	1 month
Card | Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans contractually past due before being placed on nonaccrual status, in month	3 months
MUAH | Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans contractually past due before being placed on nonaccrual status, in month	3 months
Krungsri | Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans contractually past due before being placed on nonaccrual status, in month	3 months
Residential | Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans contractually past due before being placed on nonaccrual status, in month	6 months

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses (Nonaccrual Status of Loans by Class) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	¥ 1,027,303	¥ 926,575
Nonaccrual loans not requiring an allowance for credit losses	140,534	160,800
Loans held for sale placed on nonaccrual status	326,801	396,331
Commercial | Domestic
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	305,247	295,055
Nonaccrual loans not requiring an allowance for credit losses	84,885	89,994
Commercial | Foreign
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	258,095	225,572
Nonaccrual loans not requiring an allowance for credit losses	41,402	59,564
Residential
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	38,259	41,101
Nonaccrual loans not requiring an allowance for credit losses	4,234	4,067
Card
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	74,639	72,554
Nonaccrual loans not requiring an allowance for credit losses	0	0
Krungsri
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	313,619	258,511
Nonaccrual loans not requiring an allowance for credit losses	10,004	7,159
Other
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	37,444	33,782
Nonaccrual loans not requiring an allowance for credit losses	¥ 9	¥ 16

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses (Recognized Interest Income on Nonaccrual Loans) (Details) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	¥ 16,627	¥ 12,801
Commercial | Domestic
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	2,121	2,209
Commercial | Foreign
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	5,026	3,534
Residential
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	237	276
Card
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	14	8
Krungsri
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	7,585	5,225
Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	¥ 1,644	¥ 1,549

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses (Loan Modifications) (Details) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Commercial | Domestic | Interest rate reduction
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 530	¥ 2,909
Percentage of Total Class of Loans	0%	0.01%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Commercial | Domestic | Term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 162,309	¥ 146,968
Percentage of Total Class of Loans	0.26%	0.27%
Loans Modified within 12 months of Subsequent Default	¥ 3,216	¥ 2,676
Commercial | Domestic | Combination of interest rate reduction and term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 3,864	¥ 4,774
Percentage of Total Class of Loans	0.01%	0.01%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Commercial | Domestic | Combination of term extension and principal forgiveness
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Commercial | Domestic | All other modifications and combinations
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Commercial | Foreign | Interest rate reduction
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Commercial | Foreign | Term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 74,732	¥ 101,054
Percentage of Total Class of Loans	0.17%	0.22%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Commercial | Foreign | Combination of interest rate reduction and term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Commercial | Foreign | Combination of term extension and principal forgiveness
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Commercial | Foreign | All other modifications and combinations
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Residential | Foreign | Interest rate reduction
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Residential | Foreign | Term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 6,137	¥ 8,491
Percentage of Total Class of Loans	0.05%	0.07%
Loans Modified within 12 months of Subsequent Default	¥ 180	¥ 60
Residential | Foreign | Combination of interest rate reduction and term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Residential | Foreign | Combination of term extension and principal forgiveness
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Residential | Foreign | All other modifications and combinations
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Card | Foreign | Interest rate reduction
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Card | Foreign | Term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Card | Foreign | Combination of interest rate reduction and term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 12,828	¥ 12,480
Percentage of Total Class of Loans	2.65%	2.61%
Loans Modified within 12 months of Subsequent Default	¥ 1,541	¥ 1,472
Card | Foreign | Combination of term extension and principal forgiveness
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 126	¥ 121
Percentage of Total Class of Loans	0.03%	0.03%
Loans Modified within 12 months of Subsequent Default	¥ 2	¥ 1
Card | Foreign | All other modifications and combinations
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Krungsri | Foreign | Interest rate reduction
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 466	¥ 329
Percentage of Total Class of Loans	0.01%	0%
Loans Modified within 12 months of Subsequent Default	¥ 4	¥ 52
Krungsri | Foreign | Term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 143,449	¥ 174,300
Percentage of Total Class of Loans	1.59%	1.99%
Loans Modified within 12 months of Subsequent Default	¥ 4,495	¥ 3,095
Krungsri | Foreign | Combination of interest rate reduction and term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 2,613	¥ 992
Percentage of Total Class of Loans	0.03%	0.01%
Loans Modified within 12 months of Subsequent Default	¥ 105	¥ 85
Krungsri | Foreign | Combination of term extension and principal forgiveness
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 1,558	¥ 261
Percentage of Total Class of Loans	0.02%	0%
Loans Modified within 12 months of Subsequent Default	¥ 40	¥ 4,072
Krungsri | Foreign | All other modifications and combinations
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 867	¥ 919
Percentage of Total Class of Loans	0.01%	0.01%
Loans Modified within 12 months of Subsequent Default	¥ 2	¥ 48
Other | Foreign | Interest rate reduction
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 831	¥ 250
Percentage of Total Class of Loans	0.04%	0.01%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 185
Other | Foreign | Term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 6,626	¥ 1,569
Percentage of Total Class of Loans	0.33%	0.09%
Loans Modified within 12 months of Subsequent Default	¥ 1,121	¥ 290
Other | Foreign | Combination of interest rate reduction and term extension
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 149
Percentage of Total Class of Loans	0%	0.01%
Loans Modified within 12 months of Subsequent Default	¥ 4	¥ 0
Other | Foreign | Combination of term extension and principal forgiveness
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0
Other | Foreign | All other modifications and combinations
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis at the Period End	¥ 0	¥ 0
Percentage of Total Class of Loans	0%	0%
Loans Modified within 12 months of Subsequent Default	¥ 0	¥ 0

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses (Financial Effect of Modifications) (Details) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Commercial | Domestic
Financing Receivable, Modifications [Line Items]
Weighted average interest rate decrease from modification	0.16%	0.06%
Weighted average term increase from modification	9 months 18 days	9 months 18 days
Commercial | Foreign
Financing Receivable, Modifications [Line Items]
Weighted average term increase from modification	7 months 6 days	6 months
Residential
Financing Receivable, Modifications [Line Items]
Weighted average term increase from modification	1 year 2 months 12 days	1 year 3 months 18 days
Card
Financing Receivable, Modifications [Line Items]
Weighted average interest rate decrease from modification	15.22%	15.24%
Weighted average term increase from modification	3 years	3 years
Decrease in loan principal from modification	¥ 431	¥ 404
Krungsri
Financing Receivable, Modifications [Line Items]
Weighted average interest rate decrease from modification	1.79%	1.29%
Weighted average term increase from modification	3 years 7 months 6 days	1 year 8 months 12 days
Decrease in loan principal from modification	¥ 658	¥ 563
Other
Financing Receivable, Modifications [Line Items]
Weighted average interest rate decrease from modification	8.30%	3.40%
Weighted average term increase from modification	1 year	3 years

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses (Aging Analysis) (Details) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Current
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	¥ 667,144	¥ 695,854
1-3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	33,269	20,121
Greater Than 3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	28,603	14,499
Commercial | Current | Domestic
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	324,632	266,915
Commercial | Current | Foreign
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	90,234	108,618
Commercial | 1-3 months Past Due | Domestic
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	100	305
Commercial | 1-3 months Past Due | Foreign
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	0	0
Commercial | Greater Than 3 months Past Due | Domestic
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	62	470
Commercial | Greater Than 3 months Past Due | Foreign
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	0	0
Residential | Current
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	11,403	16,094
Residential | 1-3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	603	948
Residential | Greater Than 3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	121	214
Card | Current
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	18,127	16,816
Card | 1-3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	4,034	4,270
Card | Greater Than 3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	2,005	1,973
Krungsri | Current
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	215,377	283,343
Krungsri | 1-3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	25,118	14,007
Krungsri | Greater Than 3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	25,376	11,654
Other | Current
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	7,371	4,068
Other | 1-3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	3,414	591
Other | Greater Than 3 months Past Due
Financing Receivable, Modifications [Line Items]
Payment Status (Amortized Cost Basis at the Period End)	¥ 1,039	¥ 188

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses (Credit Quality Indicators of Loans and Year of Origination by Class) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	¥ 130,730,553	¥ 128,397,012
Commercial | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	26,191,966	36,089,439
Year 2	18,731,354	13,326,456
Year 3	11,345,368	7,110,866
Year 4	5,779,064	5,965,489
Year 5	5,072,732	4,197,181
Prior	11,714,913	9,777,389
Revolving Loans Amortized Cost Basis	26,980,476	27,367,612
Revolving Loans Converted to Term Loans Amortized Cost Basis	64,026	63,489
Total	105,879,899	103,897,921
Commercial | Domestic
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	62,180,544	57,498,290
Commercial | Domestic | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	19,422,041	20,392,832
Year 2	8,755,355	7,709,706
Year 3	6,865,865	4,897,276
Year 4	4,297,863	5,099,173
Year 5	4,468,287	3,195,961
Prior	9,564,233	7,915,170
Revolving Loans Amortized Cost Basis	8,667,682	8,175,676
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	62,041,326	57,385,794
Commercial | Domestic | Normal | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	19,317,740	20,168,687
Year 2	8,574,120	7,567,872
Year 3	6,726,304	4,700,171
Year 4	4,093,158	4,955,680
Year 5	4,313,060	3,058,292
Prior	8,887,916	7,289,232
Revolving Loans Amortized Cost Basis	8,447,688	7,918,471
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	60,359,986	55,658,405
Commercial | Domestic | Close Watch | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	65,061	212,521
Year 2	174,201	132,768
Year 3	107,633	182,359
Year 4	191,545	120,759
Year 5	134,305	91,961
Prior	564,721	524,833
Revolving Loans Amortized Cost Basis	208,663	242,574
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	1,446,129	1,507,775
Commercial | Domestic | Likely to become Bankrupt or Legally/Virtually Bankrupt | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	39,240	11,624
Year 2	7,034	9,066
Year 3	31,928	14,746
Year 4	13,160	22,734
Year 5	20,922	45,708
Prior	111,596	101,105
Revolving Loans Amortized Cost Basis	11,331	14,631
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	235,211	219,614
Commercial | Domestic | Gross charge-offs | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	862	2,478
Year 2	2,055	26,192
Year 3	589	1,379
Year 4	332	2,669
Year 5	191	9,904
Prior	1,780	8
Revolving Loans Amortized Cost Basis	211	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	6,020	42,630
Commercial | Foreign
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	44,636,262	47,353,215
Commercial | Foreign | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	6,769,925	15,696,607
Year 2	9,975,999	5,616,750
Year 3	4,479,503	2,213,590
Year 4	1,481,201	866,316
Year 5	604,445	1,001,220
Prior	2,150,680	1,862,219
Revolving Loans Amortized Cost Basis	18,312,794	19,191,936
Revolving Loans Converted to Term Loans Amortized Cost Basis	64,026	63,489
Total	43,838,573	46,512,127
Commercial | Foreign | Normal | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	6,690,117	15,305,350
Year 2	9,654,989	5,445,830
Year 3	4,297,828	2,166,976
Year 4	1,447,782	827,405
Year 5	579,913	877,978
Prior	1,904,520	1,680,485
Revolving Loans Amortized Cost Basis	17,985,700	18,889,310
Revolving Loans Converted to Term Loans Amortized Cost Basis	61,854	60,877
Total	42,622,703	45,254,211
Commercial | Foreign | Close Watch | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	59,543	330,450
Year 2	216,179	142,807
Year 3	153,292	41,638
Year 4	33,419	23,625
Year 5	13,820	110,527
Prior	190,536	129,927
Revolving Loans Amortized Cost Basis	306,324	269,944
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	973,113	1,048,918
Commercial | Foreign | Likely to become Bankrupt or Legally/Virtually Bankrupt | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	20,265	60,807
Year 2	104,831	28,113
Year 3	28,383	4,976
Year 4	0	15,286
Year 5	10,712	12,715
Prior	55,624	51,807
Revolving Loans Amortized Cost Basis	20,770	32,682
Revolving Loans Converted to Term Loans Amortized Cost Basis	2,172	2,612
Total	242,757	208,998
Commercial | Foreign | Gross charge-offs | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	84	9,301
Year 2	255	8,575
Year 3	1,632	1,057
Year 4	2,507	794
Year 5	0	174
Prior	0	130
Revolving Loans Amortized Cost Basis	7,687	10,131
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	12,165	30,162
Residential
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	12,421,037	12,497,378
Residential | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	474,295	668,170
Year 2	651,183	659,156
Year 3	640,862	714,292
Year 4	692,280	573,679
Year 5	554,851	864,058
Prior	9,388,304	8,997,473
Revolving Loans Amortized Cost Basis	19,262	20,550
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	12,421,037	12,497,378
Residential | Gross charge-offs | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	0	0
Year 2	0	0
Year 3	5	2
Year 4	32	6
Year 5	0	28
Prior	38	1,253
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	75	1,289
Residential | Accrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	474,221	668,118
Year 2	651,131	658,831
Year 3	640,544	714,154
Year 4	692,025	573,444
Year 5	554,606	863,432
Prior	9,352,910	8,959,995
Revolving Loans Amortized Cost Basis	17,847	18,891
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	12,383,284	12,456,865
Residential | Nonaccrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	74	52
Year 2	52	325
Year 3	318	138
Year 4	255	235
Year 5	245	626
Prior	35,394	37,478
Revolving Loans Amortized Cost Basis	1,415	1,659
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	37,753	40,513
Card
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	484,879	484,850
Card | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	0	21
Year 2	82	181
Year 3	208	224
Year 4	296	269
Year 5	270	207
Prior	749	638
Revolving Loans Amortized Cost Basis	406,304	409,416
Revolving Loans Converted to Term Loans Amortized Cost Basis	76,970	73,894
Total	484,879	484,850
Card | Gross charge-offs | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	0	18
Year 2	28	63
Year 3	85	100
Year 4	56	112
Year 5	81	97
Prior	116	117
Revolving Loans Amortized Cost Basis	4,855	9,712
Revolving Loans Converted to Term Loans Amortized Cost Basis	6,063	10,801
Total	11,284	21,020
Card | Accrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	0	0
Year 2	3	10
Year 3	5	7
Year 4	9	7
Year 5	8	9
Prior	35	34
Revolving Loans Amortized Cost Basis	393,880	396,746
Revolving Loans Converted to Term Loans Amortized Cost Basis	16,300	15,483
Total	410,240	412,296
Card | Nonaccrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	0	21
Year 2	79	171
Year 3	203	217
Year 4	287	262
Year 5	262	198
Prior	714	604
Revolving Loans Amortized Cost Basis	12,424	12,670
Revolving Loans Converted to Term Loans Amortized Cost Basis	60,670	58,411
Total	74,639	72,554
Krungsri
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	9,015,732	8,805,112
Krungsri | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	928,828	2,133,219
Year 2	1,836,210	1,481,834
Year 3	1,249,486	811,883
Year 4	698,095	401,052
Year 5	302,590	431,766
Prior	1,072,009	768,770
Revolving Loans Amortized Cost Basis	2,895,885	2,741,676
Revolving Loans Converted to Term Loans Amortized Cost Basis	21,344	16,982
Total	9,004,447	8,787,182
Krungsri | Gross charge-offs | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	316	8,765
Year 2	19,866	55,828
Year 3	32,303	34,544
Year 4	13,408	12,995
Year 5	4,227	15,439
Prior	12,068	19,729
Revolving Loans Amortized Cost Basis	15,920	30,709
Revolving Loans Converted to Term Loans Amortized Cost Basis	2,922	2,632
Total	101,030	180,641
Krungsri | Performing | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	844,687	1,986,177
Year 2	1,631,629	1,319,372
Year 3	1,084,838	685,123
Year 4	577,836	337,985
Year 5	243,477	330,511
Prior	780,640	578,608
Revolving Loans Amortized Cost Basis	2,673,984	2,578,069
Revolving Loans Converted to Term Loans Amortized Cost Basis	7	0
Total	7,837,098	7,815,845
Krungsri | Under-Performing | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	74,026	110,487
Year 2	143,796	108,846
Year 3	114,958	86,273
Year 4	80,762	49,140
Year 5	44,511	80,033
Prior	215,623	141,150
Revolving Loans Amortized Cost Basis	180,054	136,897
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	853,730	712,826
Krungsri | Non-Performing | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	10,115	36,555
Year 2	60,785	53,616
Year 3	49,690	40,487
Year 4	39,497	13,927
Year 5	14,602	21,222
Prior	75,746	49,012
Revolving Loans Amortized Cost Basis	41,847	26,710
Revolving Loans Converted to Term Loans Amortized Cost Basis	21,337	16,982
Total	313,619	258,511
Other
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	1,992,099	1,758,167
Other | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	498,369	749,054
Year 2	517,076	296,723
Year 3	255,062	94,173
Year 4	70,049	45,408
Year 5	42,070	26,103
Prior	108,806	87,724
Revolving Loans Amortized Cost Basis	500,667	458,982
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	1,992,099	1,758,167
Other | Gross charge-offs | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	659	4,815
Year 2	14,191	15,962
Year 3	6,386	6,212
Year 4	1,898	1,810
Year 5	215	785
Prior	1,303	3,036
Revolving Loans Amortized Cost Basis	3,151	6,013
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	27,803	38,633
Other | Accrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	497,934	743,600
Year 2	506,826	291,516
Year 3	250,915	92,176
Year 4	68,607	44,523
Year 5	41,119	24,642
Prior	101,731	82,574
Revolving Loans Amortized Cost Basis	487,523	445,355
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	1,954,655	1,724,386
Other | Nonaccrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Year 1	435	5,454
Year 2	10,250	5,207
Year 3	4,147	1,997
Year 4	1,442	885
Year 5	951	1,461
Prior	7,075	5,150
Revolving Loans Amortized Cost Basis	13,144	13,627
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	¥ 37,444	¥ 33,781

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses (Changes in Allowance for Credit Losses by Portfolio Segment) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	¥ 1,356,961	¥ 1,279,514
Provision for credit losses	128,584	71,912
Charge-offs	158,377	132,641
Recoveries collected	31,695	34,537
Net charge-offs	126,682	98,104
Other	11,941	43,169
Balance at end of period	1,370,804	1,296,491
ASU 2022-02
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Other		18,869
Commercial
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	745,514	719,589
Provision for credit losses	14,650	(17,974)
Charge-offs	18,185	36,943
Recoveries collected	5,759	9,720
Net charge-offs	12,426	27,223
Other	(16,651)	1,580
Balance at end of period	731,087	675,972
Residential
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	56,964	59,747
Provision for credit losses	(2,408)	433
Charge-offs	75	459
Recoveries collected	5	2
Net charge-offs	70	457
Other	0	0
Balance at end of period	54,486	59,723
Card
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	36,423	42,469
Provision for credit losses	13,895	10,255
Charge-offs	11,284	10,158
Recoveries collected	512	393
Net charge-offs	10,772	9,765
Other	0	(7,666)
Balance at end of period	39,546	35,293
Krungsri
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	405,211	364,647
Provision for credit losses	76,414	57,443
Charge-offs	101,030	69,152
Recoveries collected	18,452	15,931
Net charge-offs	82,578	53,221
Other	19,772	38,096
Balance at end of period	418,819	406,965
Other
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	112,849	93,062
Provision for credit losses	26,033	21,755
Charge-offs	27,803	15,929
Recoveries collected	6,967	8,491
Net charge-offs	20,836	7,438
Other	8,820	11,159
Balance at end of period	¥ 126,866	¥ 118,538

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Movement in Carrying Amount of Goodwill) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Apr. 01, 2023
Goodwill [Roll Forward]
Goodwill, at beginning of period	¥ 1,086,510	¥ 889,524
Accumulated impairment losses, at beginning of period	(592,752)	(592,752)
Goodwill, net at beginning of period	493,758	296,772
Goodwill acquired during the six months	151,774	67,227
Foreign currency translation adjustments and other	30,849	23,104
Goodwill, at end of period	1,269,133	979,855
Accumulated impairment losses, at end of period	(592,752)	(592,752)
Goodwill, net at end of period	¥ 676,381	¥ 387,103
Goodwill, fully impaired before April 1, 2023			¥ 1,900,019

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets (Carrying Amount of Other Intangible Assets by Major Class) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Intangible assets subject to amortization:
Finite-lived intangible assets	¥ 1,395,259	¥ 1,289,582
Intangible assets not subject to amortization:
Other	7,898	8,178
Total	1,403,157	1,297,760
Software
Intangible assets subject to amortization:
Finite-lived intangible assets	982,042	927,893
Customer relationships
Intangible assets subject to amortization:
Finite-lived intangible assets	318,264	265,082
Core deposit intangibles
Intangible assets subject to amortization:
Finite-lived intangible assets	41,614	43,741
Trade names
Intangible assets subject to amortization:
Finite-lived intangible assets	38,935	38,621
Other
Intangible assets subject to amortization:
Finite-lived intangible assets	¥ 14,404	¥ 14,245

Lease Transactions (Detail)

Lease Transactions (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Sales type and direct financing leases:
Finance income on net investment	¥ 73,163	¥ 70,426
Operating leases:
Lease income	5,085	3,938
Total	¥ 78,248	¥ 74,364

Pledged Assets and Collateral_2

Pledged Assets and Collateral (Assets Mortgaged, Pledged, or Otherwise Subject to Lien) (Detail) ¥ in Millions	Sep. 30, 2024 JPY (¥)
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 41,977,180
Trading account securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	10,245,563
Investment securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	13,369,390
Loans
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	18,334,549
Other
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 27,678

Pledged Assets and Collateral_3

Pledged Assets and Collateral (Pledged Assets Classified by Type of Liabilities) (Detail) ¥ in Millions	Sep. 30, 2024 JPY (¥)
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 41,977,180
Deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	15,226
Payables under repurchase agreements and securities lending transactions
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	20,207,187
Other short-term borrowings and long-term debt
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	21,700,084
Other
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 54,683

Pledged Assets and Collateral_4

Pledged Assets and Collateral (Narrative) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Financial Instruments Pledged as Collateral [Abstract]
Investment securities pledged for acting as a collection agent of public funds	¥ 21,928,287
Cash collateral pledged for derivative transactions included in Other assets	2,600,708	¥ 3,182,590
Cash collateral received for derivative transactions included in Other liabilities	¥ 1,346,651	¥ 1,404,066

Severance Indemnities and Pen_3

Severance Indemnities and Pension Plans (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Domestic, Japan | Pension Benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the period	¥ 16,104	¥ 17,788
Interest cost on projected benefit obligation	12,041	10,288
Expected return on plan assets	(48,224)	(41,218)
Amortization of net actuarial loss (gain)	(9,002)	925
Amortization of prior service cost	(355)	(973)
Loss (gain) on settlements and curtailment	(7,683)	(6,393)
Other	(110)	0
Net periodic benefit cost (income)	(37,229)	(19,583)
Foreign offices and subsidiaries | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the period	7,731	6,191
Interest cost on projected benefit obligation	4,423	4,367
Expected return on plan assets	(6,202)	(5,574)
Amortization of net actuarial loss (gain)	276	837
Amortization of prior service cost	(416)	(430)
Loss (gain) on settlements and curtailment	0	974
Other	(956)	0
Net periodic benefit cost (income)	4,856	6,365
Foreign offices and subsidiaries | Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the period	47	30
Interest cost on projected benefit obligation	643	594
Expected return on plan assets	(835)	(732)
Amortization of net actuarial loss (gain)	61	584
Amortization of prior service cost	(225)	(208)
Loss (gain) on settlements and curtailment	0	0
Other	(301)	0
Net periodic benefit cost (income)	¥ (610)	¥ 268

Offsetting of Derivatives, Re_3

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Offsetting Derivative Assets [Abstract]
Derivative assets, Net amounts presented in the condensed consolidated balance sheet	¥ 16,382,000	¥ 15,351,000
Offsetting Securities Borrowed [Abstract]
Receivables under securities borrowing transactions, Net amounts presented in the condensed consolidated balance sheet	5,535,122	5,000,816
Offsetting Derivative Liabilities [Abstract]
Derivative liabilities, Net amounts presented in the condensed consolidated balance sheet	16,637,000	16,360,000
Offsetting Securities Sold under Agreements to Repurchase [Abstract]
Payables under repurchase agreements, Gross amounts of recognized assets/liabilities	40,289,000	37,771,000
Offsetting Securities Loaned [Abstract]
Payables under securities lending transactions, Gross amounts of recognized assets/liabilities	662,000	1,092,000
Payables under securities lending transactions, Net amounts presented in the condensed consolidated balance sheet	644,024	1,016,938
Offsetting Obligations To Return Securities Received As Collateral [Abstract]
Obligations to return securities received as collateral, Gross amounts of recognized assets/liabilities	6,335,000	7,223,000
Financial Instruments including those of transferred business of MUFG Union Bank
Offsetting Derivative Assets [Abstract]
Derivative assets, Gross amounts of recognized assets/liabilities	16,382,000	15,351,000
Derivative assets, Gross amounts offset in the condensed consolidated balance sheet	0	0
Derivative assets, Net amounts presented in the condensed consolidated balance sheet	16,382,000	15,351,000
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(12,964,000)	(12,155,000)
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(1,018,000)	(1,095,000)
Derivative assets, Net amounts	2,400,000	2,101,000
Offsetting Securities Purchased under Agreements to Resell [Abstract]
Receivables under resale agreements, Gross amounts of recognized assets/liabilities	20,981,000	20,906,000
Receivables under resale agreements, Gross amounts offset in the condensed consolidated balance sheet	(2,567,000)	(2,082,000)
Receivables under resale agreements, Net amounts presented in the condensed consolidated balance sheet	18,414,000	18,824,000
Receivables under resale agreements, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(17,382,000)	(17,532,000)
Receivables under resale agreements, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(10,000)	(9,000)
Receivables under resale agreements, Net amounts	1,022,000	1,283,000
Offsetting Securities Borrowed [Abstract]
Receivables under securities borrowing transactions, Gross amounts of recognized assets/liabilities	5,553,000	5,076,000
Receivables under securities borrowing transactions, Gross amounts offset in the condensed consolidated balance sheet	(18,000)	(75,000)
Receivables under securities borrowing transactions, Net amounts presented in the condensed consolidated balance sheet	5,535,000	5,001,000
Receivables under securities borrowing transactions, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(5,048,000)	(4,652,000)
Receivables under securities borrowing transactions, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	0	0
Receivables under securities borrowing transactions, Net amounts	487,000	349,000
Offsetting Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed [Abstract]
Financial assets, Gross amounts of recognized assets/liabilities, Total	42,916,000	41,333,000
Financial assets, Gross amounts offset in the condensed consolidated balance sheet, Total	(2,585,000)	(2,157,000)
Financial assets, Net amounts presented in the condensed consolidated balance sheet, Total	40,331,000	39,176,000
Financial assets, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments, Total	(35,394,000)	(34,339,000)
Financial assets, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged, Total	(1,028,000)	(1,104,000)
Financial assets, Net amounts, Total	3,909,000	3,733,000
Offsetting Derivative Liabilities [Abstract]
Derivative liabilities, Gross amounts of recognized assets/liabilities	16,637,000	16,360,000
Derivative liabilities, Gross amounts offset in the condensed consolidated balance sheet	0	0
Derivative liabilities, Net amounts presented in the condensed consolidated balance sheet	16,637,000	16,360,000
Derivative liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(12,616,000)	(11,625,000)
Derivative liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(1,361,000)	(2,154,000)
Derivative liabilities, Net amounts	2,660,000	2,581,000
Offsetting Securities Sold under Agreements to Repurchase [Abstract]
Payables under repurchase agreements, Gross amounts of recognized assets/liabilities	40,289,000	37,771,000
Payables under repurchase agreements, Gross amounts offset in the condensed consolidated balance sheet	(2,565,000)	(2,081,000)
Payables under repurchase agreements, Net amounts presented in the condensed consolidated balance sheet	37,724,000	35,690,000
Payables under repurchase agreements, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(35,949,000)	(34,188,000)
Payables under repurchase agreements, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(64,000)	(82,000)
Payables under repurchase agreements, Net amounts	1,711,000	1,420,000
Offsetting Securities Loaned [Abstract]
Payables under securities lending transactions, Gross amounts of recognized assets/liabilities	662,000	1,092,000
Payables under securities lending transactions, Gross amounts offset in the condensed consolidated balance sheet	(18,000)	(75,000)
Payables under securities lending transactions, Net amounts presented in the condensed consolidated balance sheet	644,000	1,017,000
Payables under securities lending transactions, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(626,000)	(992,000)
Payables under securities lending transactions, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(3,000)	(10,000)
Payables under securities lending transactions, Net amounts	15,000	15,000
Offsetting Obligations To Return Securities Received As Collateral [Abstract]
Obligations to return securities received as collateral, Gross amounts of recognized assets/liabilities	6,335,000	7,223,000
Obligations to return securities received as collateral, Gross amounts offset in the condensed consolidated balance sheet	0	0
Obligations to return securities received as collateral, Net amounts presented in the condensed consolidated balance sheet	6,335,000	7,223,000
Obligations to return securities received as collateral, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(1,342,000)	(1,766,000)
Obligations to return securities received as collateral, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	0	0
Obligations to return securities received as collateral, Net amounts	4,993,000	5,457,000
Offsetting Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned [Abstract]
Financial liabilities, Gross amounts of recognized assets/liabilities, Total	63,923,000	62,446,000
Financial liabilities, Gross amounts offset in the condensed consolidated balance sheet, Total	(2,583,000)	(2,156,000)
Financial liabilities, Net amounts presented in the condensed consolidated balance sheet, Total	61,340,000	60,290,000
Financial liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments, Total	(50,533,000)	(48,571,000)
Financial liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged, Total	(1,428,000)	(2,246,000)
Financial liabilities, Net amounts, Total	¥ 9,379,000	¥ 9,473,000

Repurchase Agreements and Sec_3

Repurchase Agreements and Securities Lending Transactions Accounted for as Secured Borrowings (Gross Obligations by Remaining Contractual Maturity and Class of Collateral Pledged) (Detail) - JPY (¥) ¥ in Billions	Sep. 30, 2024	Mar. 31, 2024
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	¥ 40,289	¥ 37,771
Payables under securities lending transactions	662	1,092
Obligations to return securities received as collateral	6,335	7,223
Total	47,286	46,086
Overnight and open
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	14,561	8,846
Payables under securities lending transactions	644	1,015
Obligations to return securities received as collateral	5,869	6,076
Total	21,074	15,937
30 days or less
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	18,317	20,010
Payables under securities lending transactions	0	1
Obligations to return securities received as collateral	85	610
Total	18,402	20,621
31-90 days
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	3,370	7,209
Payables under securities lending transactions	0	0
Obligations to return securities received as collateral	98	135
Total	3,468	7,344
Over 90 days
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	4,041	1,706
Payables under securities lending transactions	18	76
Obligations to return securities received as collateral	283	402
Total	¥ 4,342	¥ 2,184

Repurchase Agreements and Sec_4

Repurchase Agreements and Securities Lending Transactions Accounted for as Secured Borrowings (Secured Borrowing by the Class of Collateral Pledged) (Detail) - JPY (¥) ¥ in Billions	Sep. 30, 2024	Mar. 31, 2024
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	¥ 40,289	¥ 37,771
Payables under securities lending transactions	662	1,092
Obligations to return securities received as collateral	6,335	7,223
Total	47,286	46,086
Japanese national government and Japanese government agency bonds
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	12,783	13,001
Payables under securities lending transactions	162	359
Obligations to return securities received as collateral	3,404	4,229
Total	16,349	17,589
Foreign government and official institution bonds
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	19,866	14,172
Payables under securities lending transactions	36	0
Obligations to return securities received as collateral	1,353	1,033
Total	21,255	15,205
Corporate bonds
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	978	773
Payables under securities lending transactions	0	76
Obligations to return securities received as collateral	352	400
Total	1,330	1,249
Residential mortgage-backed securities
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	5,212	8,819
Payables under securities lending transactions	0	0
Obligations to return securities received as collateral	0	0
Total	5,212	8,819
Other debt securities
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	212	346
Payables under securities lending transactions	0	0
Obligations to return securities received as collateral	24	38
Total	236	384
Marketable equity securities
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	756	636
Payables under securities lending transactions	464	657
Obligations to return securities received as collateral	1,202	1,523
Total	2,422	2,816
Other
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	482	24
Payables under securities lending transactions	0	0
Obligations to return securities received as collateral	0	0
Total	¥ 482	¥ 24

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Changes in Accumulated OCI, Net of Tax and Net of Noncontrolling Interests) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	¥ 18,517,087
Net change during the period	344,351	¥ 888,927
Balance at end of period	19,481,053	17,491,649
Accumulated other comprehensive income, net of taxes:
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	2,237,625	871,054
Net change during the period	243,252	820,817
Balance at end of period	2,480,877	1,691,871
Net unrealized losses (gains) on investment securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(826,271)	(883,931)
Net change during the period	41,091	(158,006)
Balance at end of period	(785,180)	(1,041,937)
Net debt valuation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(41,382)	3,268
Net change during the period	3,051	(22,260)
Balance at end of period	(38,331)	(18,992)
Net unrealized losses (gains) on derivatives qualifying for cash flow hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	63	551
Net change during the period	178	1,078
Balance at end of period	241	1,629
Defined benefit plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	389,392	8,350
Net change during the period	(23,831)	48,942
Balance at end of period	365,561	57,292
Foreign currency translation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	2,715,823	1,742,816
Net change during the period	222,763	951,063
Balance at end of period	¥ 2,938,586	¥ 2,693,879

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) (Before Tax and Net of Tax Changes in Each Component of Accumulated OCI) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	¥ 344,351	¥ 888,927
Other comprehensive income attributable to Mitsubishi UFJ Financial Group	243,252	820,817
Net unrealized gains (losses) on investment securities:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	58,792	(148,170)
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	13,182	23,379
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	71,974	(124,791)
Reclassification adjustment, Current Period, before Tax	10,142	(51,965)
Reclassification adjustment, Current Period, Tax (expense) or benefit	(3,467)	14,020
Reclassification adjustment, Current Period, Net of Tax	6,675	(37,945)
Other Comprehensive Income (Loss), before Tax	68,934	(200,135)
Other Comprehensive Income (Loss), Tax (expense) or benefit	9,715	37,399
Total	78,649	(162,736)
Net unrealized gains (losses) on investment securities attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	37,558	(4,730)
Net unrealized gains (losses) on investment securities attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	41,091	(158,006)
Net debt valuation adjustments:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	3,950	(32,387)
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	(1,210)	9,917
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	2,740	(22,470)
Reclassification adjustment, Current Period, before Tax	448	302
Reclassification adjustment, Current Period, Tax (expense) or benefit	(137)	(92)
Reclassification adjustment, Current Period, Net of Tax	311	210
Other Comprehensive Income (Loss), before Tax	4,398	(32,085)
Other Comprehensive Income (Loss), Tax (expense) or benefit	(1,347)	9,825
Total	3,051	(22,260)
Net debt valuation adjustments attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	0	0
Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	3,051	(22,260)
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(8,998)	8,324
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	1,796	(1,674)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(7,202)	6,650
Reclassification adjustment, Current Period, before Tax	9,292	(6,552)
Reclassification adjustment, Current Period, Tax (expense) or benefit	(1,858)	1,306
Reclassification adjustment, Current Period, Net of Tax	7,434	(5,246)
Other Comprehensive Income (Loss), before Tax	294	1,772
Other Comprehensive Income (Loss), Tax (expense) or benefit	(62)	(368)
Total	232	1,404
Net unrealized gains on derivatives qualifying for cash flow hedges attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	54	326
Net unrealized gains on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	178	1,078
Defined benefit plans:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(16,030)	75,061
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	3,867	(23,003)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(12,163)	52,058
Reclassification adjustment, Current Period, before Tax	(17,210)	(4,606)
Reclassification adjustment, Current Period, Tax (expense) or benefit	5,274	1,532
Reclassification adjustment, Current Period, Net of Tax	(11,936)	(3,074)
Other Comprehensive Income (Loss), before Tax	(33,240)	70,455
Other Comprehensive Income (Loss), Tax (expense) or benefit	9,141	(21,471)
Total	(24,099)	48,984
Defined benefit plans attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(268)	42
Defined benefit plans attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(23,831)	48,942
Foreign currency translation adjustments:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	219,251	1,172,869
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	71,910	(146,399)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	291,161	1,026,470
Reclassification adjustment, Current Period, before Tax	(6,824)	(4,231)
Reclassification adjustment, Current Period, Tax (expense) or benefit	2,181	1,296
Reclassification adjustment, Current Period, Net of Tax	(4,643)	(2,935)
Other Comprehensive Income (Loss), before Tax	212,427	1,168,638
Other Comprehensive Income (Loss), Tax (expense) or benefit	74,091	(145,103)
Total	286,518	1,023,535
Foreign currency translation adjustments attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	63,755	72,472
Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	¥ 222,763	¥ 951,063

Accumulated Other Comprehensi_5

Accumulated Other Comprehensive Income (Loss) (Reclassification of Significant Items out of Accumulated OCI) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains (losses)—net	¥ 485,145	¥ (746,078)
Total before tax	(1,344,077)	(288,625)
Income tax expense	348,694	16,664
Net of tax	(995,383)	(271,961)
Equity in earnings of equity method investees—net	(316,339)	(215,049)
Other non-interest expenses	(235,038)	(208,874)
Other non-interest income	(109,559)	(87,164)
Amount reclassified out of Accumulated OCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(4,152)	(67,052)
Income tax expense	1,993	18,062
Net of tax	(2,159)	(48,990)
Amount reclassified out of Accumulated OCI | Net gains on sales and redemptions of Available-for-sale debt securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains (losses)—net	(2,687)	(52,655)
Amount reclassified out of Accumulated OCI | Impairment losses on investment securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains (losses)—net	12,798	2
Amount reclassified out of Accumulated OCI | Net unrealized losses (gains) on investment securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains (losses)—net	31	688
Total before tax	10,142	(51,965)
Income tax expense	(3,467)	14,020
Net of tax	6,675	(37,945)
Amount reclassified out of Accumulated OCI | Net debt valuation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	448	302
Income tax expense	(137)	(92)
Net of tax	311	210
Equity in earnings of equity method investees—net	448	302
Amount reclassified out of Accumulated OCI | Net unrealized losses (gains) on derivatives qualifying for cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	9,292	(6,552)
Income tax expense	(1,858)	1,306
Net of tax	7,434	(5,246)
Amount reclassified out of Accumulated OCI | Net unrealized losses (gains) on derivatives qualifying for cash flow hedges | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense on Long-term debt or Foreign exchange gains (losses)—net	9,292	(6,552)
Amount reclassified out of Accumulated OCI | Net actuarial loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	(8,665)	2,346
Amount reclassified out of Accumulated OCI | Prior service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	(996)	(1,610)
Amount reclassified out of Accumulated OCI | Gain on settlements and curtailment, and other
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	(7,549)	(5,342)
Amount reclassified out of Accumulated OCI | Defined benefit plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(17,210)	(4,606)
Income tax expense	5,274	1,532
Net of tax	(11,936)	(3,074)
Amount reclassified out of Accumulated OCI | Foreign currency translation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(6,824)	(4,231)
Income tax expense	2,181	1,296
Net of tax	(4,643)	(2,935)
Other non-interest income	¥ (6,824)	¥ (4,231)

Derivative Financial Instrume_3

Derivative Financial Instruments (Notional Amounts of Derivative Contracts) (Detail) - JPY (¥) ¥ in Trillions	Sep. 30, 2024	Mar. 31, 2024
Derivative [Line Items]
Notional amounts of derivatives	¥ 2,362.5	¥ 2,167.6
Interest rate contracts
Derivative [Line Items]
Notional amounts of derivatives	2,010	1,812.8
Foreign exchange contracts
Derivative [Line Items]
Notional amounts of derivatives	338.1	340.7
Equity contracts
Derivative [Line Items]
Notional amounts of derivatives	5	5
Commodity contracts
Derivative [Line Items]
Notional amounts of derivatives	0.2	0.2
Credit derivatives
Derivative [Line Items]
Notional amounts of derivatives	5.6	5.3
Other
Derivative [Line Items]
Notional amounts of derivatives	¥ 3.6	¥ 3.6

Derivative Financial Instrume_4

Derivative Financial Instruments (Fair Value Information on Derivative Instruments Recorded on Condensed Consolidated Balance Sheets) (Detail) - JPY (¥) ¥ in Billions	Sep. 30, 2024	Mar. 31, 2024
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	¥ 16,382	¥ 15,351
Fair value of derivative liabilities	16,637	16,360
Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	10,410	9,505
Fair value of derivative liabilities	11,277	10,696
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	5,763	5,657
Fair value of derivative liabilities	5,282	5,536
Equity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	103	123
Fair value of derivative liabilities	122	158
Commodity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	20	19
Fair value of derivative liabilities	19	18
Credit derivatives
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	59	47
Fair value of derivative liabilities	55	62
Other
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	27	0
Fair value of derivative liabilities	(118)	(110)
Not designated as hedges
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	16,379	15,341
Fair value of derivative liabilities	16,633	16,360
Not designated as hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	10,410	9,505
Fair value of derivative liabilities	11,277	10,696
Not designated as hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	5,760	5,647
Fair value of derivative liabilities	5,278	5,536
Not designated as hedges | Equity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	103	123
Fair value of derivative liabilities	122	158
Not designated as hedges | Commodity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	20	19
Fair value of derivative liabilities	19	18
Not designated as hedges | Credit derivatives
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	59	47
Fair value of derivative liabilities	55	62
Not designated as hedges | Other
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	27	0
Fair value of derivative liabilities	(118)	(110)
Designated as hedges
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	3	10
Fair value of derivative liabilities	4	0
Designated as hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	0	0
Fair value of derivative liabilities	0	0
Designated as hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	3	10
Fair value of derivative liabilities	4	0
Designated as hedges | Equity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	0	0
Fair value of derivative liabilities	0	0
Designated as hedges | Commodity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	0	0
Fair value of derivative liabilities	0	0
Designated as hedges | Credit derivatives
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	0	0
Fair value of derivative liabilities	0	0
Designated as hedges | Other
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	0	0
Fair value of derivative liabilities	¥ 0	¥ 0

Derivative Financial Instrume_5

Derivative Financial Instruments (Gains and Losses for Trading and Risk Management Derivatives (Not Designated as Hedging Instruments)) (Detail) - JPY (¥) ¥ in Billions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	¥ 385	¥ (931)
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(103)	(223)
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	258	(380)
Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	215	(268)
Credit derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	2	(20)
Other
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	13	(40)
Foreign exchange gains (losses) - net
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	281	(388)
Foreign exchange gains (losses) - net | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	0	0
Foreign exchange gains (losses) - net | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	258	(380)
Foreign exchange gains (losses) - net | Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	0	0
Foreign exchange gains (losses) - net | Credit derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	0	0
Foreign exchange gains (losses) - net | Other
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	23	(8)
Trading account profits (losses) - net
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	104	(543)
Trading account profits (losses) - net | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(103)	(223)
Trading account profits (losses) - net | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	0	0
Trading account profits (losses) - net | Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	215	(268)
Trading account profits (losses) - net | Credit derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	2	(20)
Trading account profits (losses) - net | Other
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	¥ (10)	¥ (32)

Derivative Financial Instrume_6

Derivative Financial Instruments (Protection Sold Through Credit Derivatives) (Detail) - Protection sold - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Credit Derivatives [Line Items]
1 year or less	¥ 284,538	¥ 371,398
1-5 years	1,857,713	1,589,030
Over 5 years	213,668	249,085
Total	2,355,919	2,209,513
(Asset)/liability	(31,064)	(28,994)
Single name credit default swaps:
Credit Derivatives [Line Items]
1 year or less	242,238	295,262
1-5 years	905,082	882,964
Over 5 years	199,940	235,479
Total	1,347,260	1,413,705
(Asset)/liability	(17,716)	(16,988)
Single name credit default swaps: | Investment grade
Credit Derivatives [Line Items]
1 year or less	205,198	212,513
1-5 years	776,859	736,935
Over 5 years	190,509	219,642
Total	1,172,566	1,169,090
(Asset)/liability	(17,819)	(17,199)
Single name credit default swaps: | Non-investment grade
Credit Derivatives [Line Items]
1 year or less	37,040	82,749
1-5 years	128,223	146,029
Over 5 years	9,431	15,837
Total	174,694	244,615
(Asset)/liability	103	211
Index and basket credit default swaps :
Credit Derivatives [Line Items]
1 year or less	42,300	76,136
1-5 years	952,631	706,066
Over 5 years	13,728	13,606
Total	1,008,659	795,808
(Asset)/liability	(13,348)	(12,006)
Index and basket credit default swaps : | Investment grade
Credit Derivatives [Line Items]
1 year or less	42,300	73,300
1-5 years	769,496	681,443
Over 5 years	9,864	10,202
Total	821,660	764,945
(Asset)/liability	(9,993)	(11,458)
Index and basket credit default swaps : | Non-investment grade
Credit Derivatives [Line Items]
1 year or less	0	0
1-5 years	57,092	0
Over 5 years	0	0
Total	57,092	0
(Asset)/liability	(802)	0
Index and basket credit default swaps : | Not rated
Credit Derivatives [Line Items]
1 year or less	0	2,836
1-5 years	126,043	24,623
Over 5 years	3,864	3,404
Total	129,907	30,863
(Asset)/liability	¥ (2,553)	¥ (548)

Derivative Financial Instrume_7

Derivative Financial Instruments (Narrative) (Detail) - JPY (¥) ¥ in Billions	6 Months Ended	12 Months Ended
	Sep. 30, 2024	Mar. 31, 2024
Credit Derivatives:
Credit derivative, purchased credit protection	¥ 27	¥ 25
Credit derivative, purchased credit protection, notional value	2,079	1,920
Credit Risk, Liquidity Risk and Credit-risk-related Contingent Features:
Derivative, net liability position, aggregate fair value	700	800
Collateral already posted, aggregate fair value	221	274
Additional collateral, aggregate fair value	44	67
Assets needed for immediate settlement, aggregate fair value	¥ 122	¥ 129

Obligations Under Guarantees _3

Obligations Under Guarantees and Other Off-balance Sheet Instruments (Contractual or Notional Amounts of Guarantees) (Detail) - JPY (¥) ¥ in Billions	Sep. 30, 2024	Mar. 31, 2024
Guarantor Obligations [Line Items]
Contractual or notional amount	¥ 83,409	¥ 81,144
Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Contractual or notional amount	5,259	5,320
Performance guarantees
Guarantor Obligations [Line Items]
Contractual or notional amount	4,606	4,788
Derivative Instruments
Guarantor Obligations [Line Items]
Contractual or notional amount	54,154	51,058
Liabilities of trust accounts
Guarantor Obligations [Line Items]
Contractual or notional amount	19,365	19,938
Other
Guarantor Obligations [Line Items]
Contractual or notional amount	¥ 25	¥ 40

Obligations Under Guarantees _4

Obligations Under Guarantees and Other Off-balance Sheet Instruments (Maximum Potential Amount of Future Payments Classified Based upon Internal Credit Ratings) (Detail) - JPY (¥) ¥ in Billions	Sep. 30, 2024	Mar. 31, 2024
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	¥ 83,409	¥ 81,144
Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	5,259	5,320
Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	4,606	4,788
Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	9,865	10,108
Normal | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	5,121	5,161
Normal | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	4,502	4,685
Normal | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	9,623	9,846
Close Watch | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	119	123
Close Watch | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	45	45
Close Watch | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	164	168
Likely to become Bankrupt or Legally/Virtually Bankrupt | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	12	18
Likely to become Bankrupt or Legally/Virtually Bankrupt | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	23	29
Likely to become Bankrupt or Legally/Virtually Bankrupt | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	35	47
Not rated | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	7	18
Not rated | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	36	29
Not rated | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	¥ 43	¥ 47

Obligations Under Guarantees _5

Obligations Under Guarantees and Other Off-balance Sheet Instruments (Contractual Amounts with Regard to Other Off-balance Sheet Instruments) (Detail) - JPY (¥) ¥ in Billions	Sep. 30, 2024	Mar. 31, 2024
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	¥ 94,819	¥ 94,414
Commercial letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	861	974
Commitments to make investments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	¥ 720	¥ 674

Contingent Liabilities (Narrati

Contingent Liabilities (Narrative) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Allowance for repayment of excess interest	¥ 3,664	¥ 7,073

Variable Interest Entities (Ass

Variable Interest Entities (Assets and Liabilities of Consolidated Variable Interest Entities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Variable Interest Entity [Line Items]
Total assets	¥ 392,937,755	¥ 397,883,536
Cash and due from banks	4,055,804	4,416,646
Interest-earning deposits in other banks	104,083,772	105,701,977
Trading account assets	54,148,540	49,769,406
Investment securities	54,827,505	62,399,298
Total liabilities	373,456,702	379,366,449
Deposits	244,890,984	247,136,000
Long-term debt	24,554,156	40,012,819
Consolidated VIEs
Variable Interest Entity [Line Items]
Total assets	22,089,278	22,608,659
Cash and due from banks	5,604	10,146
Interest-earning deposits in other banks	62,694	34,166
Trading account assets	1,271,717	1,266,293
Investment securities	2,490,850	2,320,543
Loans	16,639,950	17,514,131
All other assets	1,618,463	1,463,380
Total liabilities	616,719	556,291
Deposits	0	0
Other short-term borrowings	40,825	46,208
Long-term debt	440,416	379,017
All other liabilities	135,478	131,066
Consolidated VIEs | Consolidated VIEs before Elimination
Variable Interest Entity [Line Items]
Total assets	24,427,028	26,279,985
Cash and due from banks	69,036	78,882
Interest-earning deposits in other banks	98,836	75,424
Trading account assets	1,307,441	1,338,510
Investment securities	3,090,934	2,920,762
Loans	18,076,338	20,373,266
All other assets	1,784,443	1,493,141
Total liabilities	23,871,263	25,638,790
Deposits	1,884,244	3,292,449
Other short-term borrowings	8,387,055	8,599,859
Long-term debt	12,076,859	12,293,921
All other liabilities	1,523,105	1,452,561
Consolidated VIEs | Consolidated VIEs before Elimination | Asset-backed conduits
Variable Interest Entity [Line Items]
Total assets	7,837,476	8,186,919
Cash and due from banks	59,653	66,761
Interest-earning deposits in other banks	9,056	33,826
Trading account assets	30,660	45,689
Investment securities	1,066,793	860,760
Loans	6,635,495	7,045,964
All other assets	35,819	133,919
Total liabilities	7,863,659	8,162,014
Deposits	0	0
Other short-term borrowings	5,909,982	6,331,278
Long-term debt	1,438,850	1,371,157
All other liabilities	514,827	459,579
Consolidated VIEs | Consolidated VIEs before Elimination | Investment funds
Variable Interest Entity [Line Items]
Total assets	1,931,625	1,662,843
Cash and due from banks	3,627	1,759
Interest-earning deposits in other banks	77,762	30,748
Trading account assets	316,919	337,619
Investment securities	82,111	77,334
Loans	0	0
All other assets	1,451,206	1,215,383
Total liabilities	1,401,945	1,147,832
Deposits	0	0
Other short-term borrowings	1,389,280	1,136,495
Long-term debt	8,944	8,772
All other liabilities	3,721	2,565
Consolidated VIEs | Consolidated VIEs before Elimination | Special purpose entities created for structured financing
Variable Interest Entity [Line Items]
Total assets	264,271	248,049
Cash and due from banks	0	0
Interest-earning deposits in other banks	7,299	3,820
Trading account assets	0	0
Investment securities	0	0
Loans	161,314	143,688
All other assets	95,658	100,541
Total liabilities	143,924	136,230
Deposits	0	0
Other short-term borrowings	0	0
Long-term debt	132,986	117,947
All other liabilities	10,938	18,283
Consolidated VIEs | Consolidated VIEs before Elimination | Repackaged instruments
Variable Interest Entity [Line Items]
Total assets	299,749	296,435
Cash and due from banks	5,267	9,892
Interest-earning deposits in other banks	0	0
Trading account assets	134,983	137,795
Investment securities	142,925	132,951
Loans	15,000	15,000
All other assets	1,574	797
Total liabilities	281,658	301,045
Deposits	0	0
Other short-term borrowings	0	0
Long-term debt	234,474	287,192
All other liabilities	47,184	13,853
Consolidated VIEs | Consolidated VIEs before Elimination | Securitization of the MUFG Group’s assets
Variable Interest Entity [Line Items]
Total assets	9,973,885	10,447,956
Cash and due from banks	0	0
Interest-earning deposits in other banks	571	1,664
Trading account assets	0	0
Investment securities	0	0
Loans	9,957,585	10,428,225
All other assets	15,729	18,067
Total liabilities	9,986,252	10,460,439
Deposits	0	0
Other short-term borrowings	0	0
Long-term debt	9,982,854	10,454,694
All other liabilities	3,398	5,745
Consolidated VIEs | Consolidated VIEs before Elimination | Trust arrangements
Variable Interest Entity [Line Items]
Total assets	3,881,900	5,352,775
Cash and due from banks	0	0
Interest-earning deposits in other banks	0	0
Trading account assets	818,856	803,348
Investment securities	1,760,368	1,811,498
Loans	1,302,675	2,737,908
All other assets	1	21
Total liabilities	3,882,061	5,352,880
Deposits	1,884,244	3,292,449
Other short-term borrowings	1,086,986	1,131,120
Long-term debt	0	0
All other liabilities	910,831	929,311
Consolidated VIEs | Consolidated VIEs before Elimination | Other
Variable Interest Entity [Line Items]
Total assets	238,122	85,008
Cash and due from banks	489	470
Interest-earning deposits in other banks	4,148	5,366
Trading account assets	6,023	14,059
Investment securities	38,737	38,219
Loans	4,269	2,481
All other assets	184,456	24,413
Total liabilities	311,764	78,350
Deposits	0	0
Other short-term borrowings	807	966
Long-term debt	278,751	54,159
All other liabilities	32,206	23,225
Consolidated VIEs | The amounts eliminated in consolidation
Variable Interest Entity [Line Items]
Total assets	(2,337,750)	(3,671,326)
Cash and due from banks	(63,432)	(68,736)
Interest-earning deposits in other banks	(36,142)	(41,258)
Trading account assets	(35,724)	(72,217)
Investment securities	(600,084)	(600,219)
Loans	(1,436,388)	(2,859,135)
All other assets	(165,980)	(29,761)
Total liabilities	(16,627,232)	(16,806,678)
Deposits	(369)	(432)
Other short-term borrowings	(4,279,490)	(4,242,371)
Long-term debt	(11,630,196)	(11,888,346)
All other liabilities	(717,177)	(675,529)
Consolidated VIEs | The amount of liabilities with recourse to the general credit of the MUFG Group
Variable Interest Entity [Line Items]
Total liabilities	(6,627,312)	(8,275,821)
Deposits	(1,883,875)	(3,292,017)
Other short-term borrowings	(4,066,740)	(4,311,280)
Long-term debt	(6,247)	(26,558)
All other liabilities	¥ (670,450)	¥ (645,966)

Variable Interest Entities (A_2

Variable Interest Entities (Assets and Liabilities of Non-consolidated Variable Interest Entities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Variable Interest Entity [Line Items]
Total assets	¥ 392,937,755	¥ 397,883,536
Total liabilities	373,456,702	379,366,449
Non-consolidated VIEs
Variable Interest Entity [Line Items]
Total assets	314,363,877	358,377,993
Maximum exposure	31,923,132	34,044,419
Total assets	23,745,094	25,614,912
Trading account assets	2,570,189	2,373,626
Investment securities	4,229,436	5,101,857
Loans	16,325,136	17,346,410
All other assets	620,333	793,019
Total liabilities	247,110	289,627
All other liabilities	247,110	289,627
Non-consolidated VIEs | Asset-backed conduits
Variable Interest Entity [Line Items]
Total assets	29,789,964	39,009,182
Maximum exposure	8,667,183	9,223,412
Total assets	6,681,352	7,284,351
Trading account assets	29,401	13,184
Investment securities	2,157,031	2,147,351
Loans	4,494,920	5,123,816
All other assets	0	0
Total liabilities	982	3,860
All other liabilities	982	3,860
Non-consolidated VIEs | Investment funds
Variable Interest Entity [Line Items]
Total assets	107,184,083	140,717,674
Maximum exposure	7,026,974	7,385,746
Total assets	4,568,235	4,757,037
Trading account assets	386,996	321,000
Investment securities	211,183	300,803
Loans	3,738,255	3,719,748
All other assets	231,801	415,486
Total liabilities	12,116	16,172
All other liabilities	12,116	16,172
Non-consolidated VIEs | Special purpose entities created for structured financing
Variable Interest Entity [Line Items]
Total assets	71,035,055	72,102,436
Maximum exposure	7,415,470	7,696,582
Total assets	5,068,653	5,334,476
Trading account assets	102,641	93,808
Investment securities	59,518	61,114
Loans	4,840,457	5,134,236
All other assets	66,037	45,318
Total liabilities	211,236	251,944
All other liabilities	211,236	251,944
Non-consolidated VIEs | Repackaged instruments
Variable Interest Entity [Line Items]
Total assets	8,231,091	10,205,539
Maximum exposure	4,300,776	5,144,654
Total assets	4,212,759	5,004,762
Trading account assets	1,741,380	1,683,889
Investment securities	1,801,704	2,592,589
Loans	466,149	497,156
All other assets	203,526	231,128
Total liabilities	89	0
All other liabilities	89	0
Non-consolidated VIEs | Other
Variable Interest Entity [Line Items]
Total assets	98,123,684	96,343,162
Maximum exposure	4,512,729	4,594,025
Total assets	3,214,095	3,234,286
Trading account assets	309,771	261,745
Investment securities	0	0
Loans	2,785,355	2,871,454
All other assets	118,969	101,087
Total liabilities	22,687	17,651
All other liabilities	¥ 22,687	¥ 17,651

Fees and Commissions Income (De

Fees and Commissions Income (Details of Fees and Commissions Income) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	¥ 1,013,028	¥ 886,230
Fees and commissions on deposits
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	18,418	18,277
Fees and commissions on remittances and transfers
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	78,435	73,481
Fees and commissions on foreign trading business
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	42,601	36,905
Fees and commissions on credit card business
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	128,463	120,202
Fees and commissions on security-related services
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	169,960	133,126
Fees and commissions on administration and management services for investment funds
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	162,524	150,700
Trust fees
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	69,501	62,724
Guarantee fees
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	26,663	25,270
Insurance commissions
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	38,107	29,934
Fees and commissions on real estate business
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	28,190	22,347
Other fees and commissions
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	¥ 250,166	¥ 213,264

Business Segments (Narrative) (

Business Segments (Narrative) (Details) ¥ in Billions	6 Months Ended
	Sep. 30, 2024 JPY (¥) segment	Sep. 30, 2023 JPY (¥)
Segment Reporting Information [Line Items]
Number of operating segments | segment	7
Fixed assets:	¥ 1,365.2	¥ 1,376.9
Operating Segments | Customer Business
Segment Reporting Information [Line Items]
Fixed assets:	777.2	758
Operating Segments | Global Commercial Banking Business Group | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Fixed assets:		0.2
Operating Segments | Global Commercial Banking Business Group | Customer Business
Segment Reporting Information [Line Items]
Fixed assets:	1.8	1.5
Operating Segments | Global Commercial Banking Business Group | Customer Business | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		(0.2)
Operating Segments | Global Corporate & Investment Banking Business Group | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Fixed assets:		0.8
Operating Segments | Global Corporate & Investment Banking Business Group | Customer Business
Segment Reporting Information [Line Items]
Fixed assets:	158.2	169.2
Operating Segments | Global Corporate & Investment Banking Business Group | Customer Business | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		39.4
Operating Segments | Japanese Corporate & Investment Banking Business Group | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Fixed assets:		2.5
Modification impact in fixed assets		0.3
Modification impact in depreciation		0.2
Operating Segments | Japanese Corporate & Investment Banking Business Group | Customer Business
Segment Reporting Information [Line Items]
Fixed assets:	165.5	163.5
Operating Segments | Japanese Corporate & Investment Banking Business Group | Customer Business | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		20.7
Operating Segments | Retail & Digital Business Group | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Fixed assets:		58.6
Modification impact in fixed assets		6
Modification impact in depreciation		4.3
Operating Segments | Retail & Digital Business Group | Customer Business
Segment Reporting Information [Line Items]
Fixed assets:	250.7	231.4
Operating Segments | Retail & Digital Business Group | Customer Business | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		17.4
Operating Segments | Commercial Banking & Wealth Management Business Group | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Fixed assets:		(40.7)
Modification impact in fixed assets		3.9
Modification impact in depreciation		2.9
Operating Segments | Commercial Banking & Wealth Management Business Group | Customer Business
Segment Reporting Information [Line Items]
Fixed assets:	179.7	170.3
Operating Segments | Commercial Banking & Wealth Management Business Group | Customer Business | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		6.7
Operating Segments | Global Markets Business Group
Segment Reporting Information [Line Items]
Fixed assets:	95.3	110.9
Operating Segments | Global Markets Business Group | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Fixed assets:		2.5
Modification impact in fixed assets		0.2
Modification impact in depreciation		0.1
Operating Segments | Global Markets Business Group | Customer Business | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		4.3
Operating Segments | Asset Management & Investor Services Business Group | Customer Business
Segment Reporting Information [Line Items]
Fixed assets:	21.3	22.1
Operating Segments | Asset Management & Investor Services Business Group | Customer Business | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		1.9
Other
Segment Reporting Information [Line Items]
Fixed assets:	¥ 492.7	508
Other | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		84.6
Fixed assets:		(23.9)
Modification impact in fixed assets		2.6
Modification impact in depreciation		¥ 1.7

Business Segments (Financial In

Business Segments (Financial Information by Business Segment) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Business segment information
Net revenue:	¥ 2,904,800	¥ 2,495,400
Net interest income	1,490,149	1,266,447
Operating expenses	1,610,300	1,423,100
Operating profit (loss)	1,294,500	1,072,300
Fixed assets:	1,365,200	1,376,900
Increase in fixed assets	97,900	114,000
Depreciation	90,200	90,200
BK and TB
Business segment information
Net revenue:	1,563,000	1,509,800
Net interest income	905,200	886,500
Net fees	434,300	408,800
Other	223,500	214,500
Other than BK and TB
Business segment information
Net revenue:	1,341,800	985,600
Operating Segments | Customer Business
Business segment information
Net revenue:	2,553,900	2,074,300
Operating expenses	1,413,600	1,221,500
Operating profit (loss)	1,140,300	852,800
Fixed assets:	777,200	758,000
Increase in fixed assets	75,200	88,000
Depreciation	68,300	67,700
Operating Segments | BK and TB | Customer Business
Business segment information
Net revenue:	1,294,500	1,160,500
Net interest income	763,700	660,700
Net fees	460,000	427,000
Other	70,800	72,800
Operating Segments | Other than BK and TB | Customer Business
Business segment information
Net revenue:	1,259,400	913,800
Operating Segments | Retail & Digital Business Group | Customer Business
Business segment information
Net revenue:	457,100	409,300
Operating expenses	328,400	310,700
Operating profit (loss)	128,700	98,600
Fixed assets:	250,700	231,400
Increase in fixed assets	22,500	25,100
Depreciation	15,900	11,300
Operating Segments | Retail & Digital Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	190,300	155,700
Net interest income	149,300	123,800
Net fees	39,300	30,200
Other	1,700	1,700
Operating Segments | Retail & Digital Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	266,800	253,600
Operating Segments | Commercial Banking & Wealth Management Business Group | Customer Business
Business segment information
Net revenue:	339,100	283,600
Operating expenses	210,800	202,300
Operating profit (loss)	128,300	81,300
Fixed assets:	179,700	170,300
Increase in fixed assets	17,300	16,900
Depreciation	10,200	9,100
Operating Segments | Commercial Banking & Wealth Management Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	227,700	189,500
Net interest income	122,200	93,700
Net fees	85,400	78,700
Other	20,100	17,100
Operating Segments | Commercial Banking & Wealth Management Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	111,400	94,100
Operating Segments | Japanese Corporate & Investment Banking Business Group | Customer Business
Business segment information
Net revenue:	502,900	455,900
Operating expenses	188,300	182,200
Operating profit (loss)	314,600	273,700
Fixed assets:	165,500	163,500
Increase in fixed assets	20,500	22,600
Depreciation	20,400	21,400
Operating Segments | Japanese Corporate & Investment Banking Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	405,900	371,700
Net interest income	253,100	230,900
Net fees	119,000	104,700
Other	33,800	36,100
Operating Segments | Japanese Corporate & Investment Banking Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	97,000	84,200
Operating Segments | Global Commercial Banking Business Group | Customer Business
Business segment information
Net revenue:	577,300	310,800
Operating expenses	302,200	174,600
Operating profit (loss)	275,100	136,200
Fixed assets:	1,800	1,500
Increase in fixed assets	300	200
Depreciation	100	100
Operating Segments | Global Commercial Banking Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	19,800	19,500
Net interest income	19,800	19,100
Net fees	0	0
Other	0	400
Operating Segments | Global Commercial Banking Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	557,500	291,300
Operating Segments | Asset Management & Investor Services Business Group | Customer Business
Business segment information
Net revenue:	244,400	205,700
Operating expenses	175,500	147,600
Operating profit (loss)	68,900	58,100
Fixed assets:	21,300	22,100
Increase in fixed assets	4,000	7,300
Depreciation	3,900	4,000
Operating Segments | Asset Management & Investor Services Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	67,700	56,800
Net interest income	12,600	6,500
Net fees	55,000	50,300
Other	100	0
Operating Segments | Asset Management & Investor Services Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	176,700	148,900
Operating Segments | Global Corporate & Investment Banking Business Group | Customer Business
Business segment information
Net revenue:	433,100	409,000
Operating expenses	208,400	204,100
Operating profit (loss)	224,700	204,900
Fixed assets:	158,200	169,200
Increase in fixed assets	10,600	15,900
Depreciation	17,800	21,800
Operating Segments | Global Corporate & Investment Banking Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	383,100	367,300
Net interest income	206,700	186,700
Net fees	161,300	163,100
Other	15,100	17,500
Operating Segments | Global Corporate & Investment Banking Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	50,000	41,700
Operating Segments | Global Markets Business Group
Business segment information
Net revenue:	361,200	376,500
Operating expenses	158,700	149,000
Operating profit (loss)	202,500	227,500
Fixed assets:	95,300	110,900
Increase in fixed assets	10,700	13,300
Depreciation	15,400	15,600
Operating Segments | Global Markets Business Group | BK and TB
Business segment information
Net revenue:	227,400	226,500
Net interest income	56,900	97,300
Net fees	(12,000)	(8,500)
Other	182,500	137,700
Operating Segments | Global Markets Business Group | Other than BK and TB
Business segment information
Net revenue:	133,800	150,000
Other
Business segment information
Net revenue:	(10,300)	44,600
Operating expenses	38,000	52,600
Operating profit (loss)	(48,300)	(8,000)
Fixed assets:	492,700	508,000
Increase in fixed assets	12,000	12,700
Depreciation	6,500	6,900
Other | Subsidiaries
Business segment information
Fixed assets:	1,820,300	1,344,500
Other | BK and TB
Business segment information
Net revenue:	41,100	122,800
Net interest income	84,600	128,500
Net fees	(13,700)	(9,700)
Other	(29,800)	4,000
Other | Other than BK and TB
Business segment information
Net revenue:	¥ (51,400)	¥ (78,200)

Business Segments (Reconciliati

Business Segments (Reconciliation of Operating Profit (Loss) from Segments to Condensed Consolidated Statements of Income) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit:	¥ 1,294,500	¥ 1,072,300
Foreign exchange gains (losses)—net	202,840	(324,851)
Trading account gains (losses)—net	537,284	(945,382)
Equity investment securities gains (losses)—net	(97,385)	19,247
Equity in earnings of equity method investees—net	316,339	215,049
Reversal of off-balance sheet credit instruments	1,342	4,001
Income before income tax expense	1,344,077	288,625
Fixed assets	1,365,200	1,376,900
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit:	1,295,000	1,072,000
Provision for credit losses	(129,000)	(72,000)
Foreign exchange gains (losses)—net	173,000	(379,000)
Trading account gains (losses)—net	425,000	(1,139,000)
Equity investment securities gains (losses)—net	(493,000)	625,000
Debt investment securities gains (losses)—net	(13,000)	104,000
Equity in earnings of equity method investees—net	316,000	215,000
Reversal of off-balance sheet credit instruments	1,000	4,000
Other—net	(231,000)	(141,000)
Income before income tax expense	1,344,000	289,000
Fixed assets	2,959,000	2,488,000
U.S. GAAP adjustments and other	1,594,000	1,111,000
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment | Japanese Gaap
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Fixed assets	¥ 1,365,000	¥ 1,377,000

Fair Value (Assets and Liabilit

Fair Value (Assets and Liabilities Measured at Fair Value by Level on Recurring Basis) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Assets
Trading derivative assets	¥ 16,382,000	¥ 15,351,000
Available-for-sale debt securities	26,962,826	31,422,967
Equity securities	5,125,231	6,132,369
Liabilities
Trading derivative liabilities	16,637,000	16,360,000
Japanese national government and Japanese government agency bonds
Assets
Available-for-sale debt securities	18,640,242	23,167,400
Japanese prefectural and municipal bonds
Assets
Available-for-sale debt securities	860,618	1,045,991
Foreign government and official institution bonds
Assets
Available-for-sale debt securities	3,429,995	3,302,551
Corporate bonds
Assets
Available-for-sale debt securities	942,023	1,026,468
Residential mortgage-backed securities
Assets
Available-for-sale debt securities	1,173,757	1,229,525
Asset-backed securities
Assets
Available-for-sale debt securities	1,412,655	1,247,146
Other debt securities
Assets
Available-for-sale debt securities	503,536	403,886
Fair Value, Measurements, Recurring
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	37,493,411	34,132,182
Trading derivative assets	16,351,113	15,341,224
Trading loans	38,834	31,542
Available-for-sale debt securities	26,962,826	31,422,967
Equity securities	4,461,067	5,558,620
Other financial assets	2,535,089	2,544,187
Total	87,842,340	89,030,722
Liabilities
Trading securities sold, not yet purchased	96,821	108,213
Trading derivative liabilities	16,752,497	16,471,309
Obligation to return securities received as collateral	6,335,003	7,222,728
Other	477,689	259,101
Total	23,662,010	24,061,351
Fair Value, Measurements, Recurring | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	18,900,000	18,626,261
Trading derivative assets	59,901	90,334
Trading loans	0	0
Available-for-sale debt securities	19,498,699	23,569,981
Equity securities	4,305,959	5,400,634
Other financial assets	820,022	1,175,125
Total	43,584,581	48,862,335
Liabilities
Trading securities sold, not yet purchased	88,055	103,705
Trading derivative liabilities	95,158	117,567
Obligation to return securities received as collateral	5,971,347	6,955,707
Other	0	0
Total	6,154,560	7,176,979
Fair Value, Measurements, Recurring | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	16,352,138	13,463,967
Trading derivative assets	16,140,296	15,099,648
Trading loans	38,834	31,542
Available-for-sale debt securities	7,267,926	7,648,181
Equity securities	63,240	70,172
Other financial assets	1,585,037	1,229,942
Total	41,447,471	37,543,452
Liabilities
Trading securities sold, not yet purchased	8,766	4,508
Trading derivative liabilities	16,550,559	16,261,406
Obligation to return securities received as collateral	309,829	195,622
Other	424,438	192,649
Total	17,293,592	16,654,185
Fair Value, Measurements, Recurring | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	2,241,273	2,041,954
Trading derivative assets	150,916	151,242
Trading loans	0	0
Available-for-sale debt securities	196,201	204,805
Equity securities	91,868	87,814
Other financial assets	130,030	139,120
Total	2,810,288	2,624,935
Liabilities
Trading securities sold, not yet purchased	0	0
Trading derivative liabilities	106,780	92,336
Obligation to return securities received as collateral	53,827	71,399
Other	53,251	66,452
Total	213,858	230,187
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds
Assets
Available-for-sale debt securities	18,640,242	23,167,400
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 1
Assets
Available-for-sale debt securities	17,220,733	21,336,860
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 2
Assets
Available-for-sale debt securities	1,419,509	1,830,540
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 3
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds
Assets
Available-for-sale debt securities	860,618	1,045,991
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Level 1
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Level 2
Assets
Available-for-sale debt securities	860,618	1,045,991
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Level 3
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Foreign government and official institution bonds
Assets
Available-for-sale debt securities	3,429,995	3,302,551
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 1
Assets
Available-for-sale debt securities	2,277,966	2,233,121
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 2
Assets
Available-for-sale debt securities	1,152,029	1,069,430
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 3
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Corporate bonds
Assets
Available-for-sale debt securities	942,023	1,026,468
Fair Value, Measurements, Recurring | Corporate bonds | Level 1
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Corporate bonds | Level 2
Assets
Available-for-sale debt securities	937,409	1,021,296
Fair Value, Measurements, Recurring | Corporate bonds | Level 3
Assets
Available-for-sale debt securities	4,614	5,172
Fair Value, Measurements, Recurring | Residential mortgage-backed securities
Assets
Available-for-sale debt securities	1,173,757	1,229,525
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 1
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 2
Assets
Available-for-sale debt securities	1,173,742	1,229,510
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 3
Assets
Available-for-sale debt securities	15	15
Fair Value, Measurements, Recurring | Asset-backed securities
Assets
Available-for-sale debt securities	1,412,655	1,247,146
Fair Value, Measurements, Recurring | Asset-backed securities | Level 1
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Asset-backed securities | Level 2
Assets
Available-for-sale debt securities	1,269,731	1,114,195
Fair Value, Measurements, Recurring | Asset-backed securities | Level 3
Assets
Available-for-sale debt securities	142,924	132,951
Fair Value, Measurements, Recurring | Other debt securities
Assets
Available-for-sale debt securities	503,536	403,886
Fair Value, Measurements, Recurring | Other debt securities | Level 1
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Other debt securities | Level 2
Assets
Available-for-sale debt securities	454,888	337,219
Fair Value, Measurements, Recurring | Other debt securities | Level 3
Assets
Available-for-sale debt securities	48,648	66,667
Fair Value, Measurements, Recurring | Marketable equity securities
Assets
Equity securities	4,369,199	5,470,806
Liabilities
Contractual sale restriction equity security	¥ 14,902
Fair Value, Measurements, Recurring | Marketable equity securities | Minimum
Liabilities
Contractual sale restriction equity security, remaining period	2 months 12 days
Fair Value, Measurements, Recurring | Marketable equity securities | Maximum
Liabilities
Contractual sale restriction equity security, remaining period	3 years 6 months
Fair Value, Measurements, Recurring | Marketable equity securities | Level 1
Assets
Equity securities	¥ 4,305,959	5,400,634
Fair Value, Measurements, Recurring | Marketable equity securities | Level 2
Assets
Equity securities	63,240	70,172
Fair Value, Measurements, Recurring | Marketable equity securities | Level 3
Assets
Equity securities	0	0
Fair Value, Measurements, Recurring | Nonmarketable equity securities
Assets
Equity securities	91,868	87,814
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Level 1
Assets
Equity securities	0	0
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Level 2
Assets
Equity securities	0	0
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Level 3
Assets
Equity securities	91,868	87,814
Fair Value, Measurements, Recurring | Interest rate contracts
Assets
Trading derivative assets	10,409,588	9,505,212
Liabilities
Trading derivative liabilities	11,277,375	10,696,351
Fair Value, Measurements, Recurring | Interest rate contracts | Level 1
Assets
Trading derivative assets	15,339	14,143
Liabilities
Trading derivative liabilities	24,727	30,997
Fair Value, Measurements, Recurring | Interest rate contracts | Level 2
Assets
Trading derivative assets	10,287,267	9,381,056
Liabilities
Trading derivative liabilities	11,168,456	10,594,827
Fair Value, Measurements, Recurring | Interest rate contracts | Level 3
Assets
Trading derivative assets	106,982	110,013
Liabilities
Trading derivative liabilities	84,192	70,527
Fair Value, Measurements, Recurring | Foreign exchange contracts
Assets
Trading derivative assets	5,759,501	5,646,664
Liabilities
Trading derivative liabilities	5,278,144	5,535,644
Fair Value, Measurements, Recurring | Foreign exchange contracts | Level 1
Assets
Trading derivative assets	5,123	10,473
Liabilities
Trading derivative liabilities	3,024	954
Fair Value, Measurements, Recurring | Foreign exchange contracts | Level 2
Assets
Trading derivative assets	5,739,249	5,623,544
Liabilities
Trading derivative liabilities	5,272,762	5,532,241
Fair Value, Measurements, Recurring | Foreign exchange contracts | Level 3
Assets
Trading derivative assets	15,129	12,647
Liabilities
Trading derivative liabilities	2,358	2,449
Fair Value, Measurements, Recurring | Equity contracts
Assets
Trading derivative assets	102,600	122,971
Liabilities
Trading derivative liabilities	122,383	158,342
Fair Value, Measurements, Recurring | Equity contracts | Level 1
Assets
Trading derivative assets	39,439	65,718
Liabilities
Trading derivative liabilities	67,407	85,616
Fair Value, Measurements, Recurring | Equity contracts | Level 2
Assets
Trading derivative assets	55,442	48,606
Liabilities
Trading derivative liabilities	54,679	72,337
Fair Value, Measurements, Recurring | Equity contracts | Level 3
Assets
Trading derivative assets	7,719	8,647
Liabilities
Trading derivative liabilities	297	389
Fair Value, Measurements, Recurring | Commodity contracts
Assets
Trading derivative assets	19,833	18,673
Liabilities
Trading derivative liabilities	19,329	18,327
Fair Value, Measurements, Recurring | Commodity contracts | Level 1
Assets
Trading derivative assets	0	0
Liabilities
Trading derivative liabilities	0	0
Fair Value, Measurements, Recurring | Commodity contracts | Level 2
Assets
Trading derivative assets	534	391
Liabilities
Trading derivative liabilities	0	0
Fair Value, Measurements, Recurring | Commodity contracts | Level 3
Assets
Trading derivative assets	19,299	18,282
Liabilities
Trading derivative liabilities	19,329	18,327
Fair Value, Measurements, Recurring | Credit derivatives
Assets
Trading derivative assets	58,696	47,195
Liabilities
Trading derivative liabilities	55,141	62,487
Fair Value, Measurements, Recurring | Credit derivatives | Level 1
Assets
Trading derivative assets	0	0
Liabilities
Trading derivative liabilities	0	0
Fair Value, Measurements, Recurring | Credit derivatives | Level 2
Assets
Trading derivative assets	57,782	46,047
Liabilities
Trading derivative liabilities	54,643	61,999
Fair Value, Measurements, Recurring | Credit derivatives | Level 3
Assets
Trading derivative assets	914	1,148
Liabilities
Trading derivative liabilities	498	488
Fair Value, Measurements, Recurring | Other
Assets
Trading derivative assets	895	509
Liabilities
Trading derivative liabilities	125	158
Fair Value, Measurements, Recurring | Other | Level 1
Assets
Trading derivative assets	0	0
Liabilities
Trading derivative liabilities	0	0
Fair Value, Measurements, Recurring | Other | Level 2
Assets
Trading derivative assets	22	4
Liabilities
Trading derivative liabilities	19	2
Fair Value, Measurements, Recurring | Other | Level 3
Assets
Trading derivative assets	873	505
Liabilities
Trading derivative liabilities	106	156
Fair Value, Measurements, Recurring | Debt securities | Japanese national government and Japanese government agency bonds
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	6,408,232	6,673,973
Fair Value, Measurements, Recurring | Debt securities | Japanese national government and Japanese government agency bonds | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	5,946,162	6,278,228
Fair Value, Measurements, Recurring | Debt securities | Japanese national government and Japanese government agency bonds | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	462,070	395,745
Fair Value, Measurements, Recurring | Debt securities | Japanese national government and Japanese government agency bonds | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Debt securities | Japanese prefectural and municipal bonds
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	116,197	91,683
Fair Value, Measurements, Recurring | Debt securities | Japanese prefectural and municipal bonds | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Debt securities | Japanese prefectural and municipal bonds | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	116,197	91,683
Fair Value, Measurements, Recurring | Debt securities | Japanese prefectural and municipal bonds | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Debt securities | Foreign government and official institution bonds
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	11,406,314	10,839,573
Fair Value, Measurements, Recurring | Debt securities | Foreign government and official institution bonds | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	10,637,393	10,170,757
Fair Value, Measurements, Recurring | Debt securities | Foreign government and official institution bonds | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	768,921	668,715
Fair Value, Measurements, Recurring | Debt securities | Foreign government and official institution bonds | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	101
Fair Value, Measurements, Recurring | Debt securities | Corporate bonds
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	2,841,399	2,732,894
Fair Value, Measurements, Recurring | Debt securities | Corporate bonds | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	3,958	8,937
Fair Value, Measurements, Recurring | Debt securities | Corporate bonds | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	2,724,574	2,723,957
Fair Value, Measurements, Recurring | Debt securities | Corporate bonds | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	112,867	0
Fair Value, Measurements, Recurring | Debt securities | Residential mortgage-backed securities
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	7,973,417	5,422,286
Fair Value, Measurements, Recurring | Debt securities | Residential mortgage-backed securities | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Debt securities | Residential mortgage-backed securities | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	7,973,417	5,422,286
Fair Value, Measurements, Recurring | Debt securities | Residential mortgage-backed securities | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Debt securities | Asset-backed securities
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	2,777,898	2,726,946
Fair Value, Measurements, Recurring | Debt securities | Asset-backed securities | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Debt securities | Asset-backed securities | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	1,315,776	1,374,191
Fair Value, Measurements, Recurring | Debt securities | Asset-backed securities | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	1,462,122	1,352,755
Fair Value, Measurements, Recurring | Debt securities | Other debt securities
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	564,472	539,445
Fair Value, Measurements, Recurring | Debt securities | Other debt securities | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Debt securities | Other debt securities | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	36,299	2,599
Fair Value, Measurements, Recurring | Debt securities | Other debt securities | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	528,173	536,846
Fair Value, Measurements, Recurring | Debt securities | Commercial paper
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	1,888,753	1,609,441
Fair Value, Measurements, Recurring | Debt securities | Commercial paper | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Debt securities | Commercial paper | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	1,888,753	1,609,441
Fair Value, Measurements, Recurring | Debt securities | Commercial paper | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Equity securities
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	3,516,729	3,495,941
Liabilities
Investment securities valued at net asset value	265,182	264,458
Unfunded commitments	215,142	134,429
Fair Value, Measurements, Recurring | Equity securities | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	2,312,487	2,168,339
Fair Value, Measurements, Recurring | Equity securities | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	1,066,131	1,175,350
Fair Value, Measurements, Recurring | Equity securities | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	138,111	152,252
Fair Value, Measurements, Recurring | Real Estate Funds | Nonmarketable equity securities
Liabilities
Investment securities valued at net asset value	37,064	37,207
Unfunded commitments	0	869
Fair Value, Measurements, Recurring | Private equity and other funds | Nonmarketable equity securities
Liabilities
Investment securities valued at net asset value	55,666	53,324
Unfunded commitments	¥ 250	¥ 250

Fair Value (Reconciliation of A

Fair Value (Reconciliation of Assets and Liabilities Measured at Fair Value on Recurring Basis Using Level 3 Inputs) (Detail) - Fair Value, Measurements, Recurring - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	¥ 2,532,599	¥ 1,683,958
Total gains (losses) for the period included in earnings, Assets	(97,217)	143,756
Total gains (losses) for the period included in other comprehensive income, Assets	7,974	22,810
Purchases, Assets	371,777	734,566
Issues, Assets	(312)	(355)
Sales, Assets	(2,578)	(2,100)
Settlements, Assets	(174,591)	(160,381)
Transfers into Level 3, Assets	64,404	10,442
Transfers out of Level 3, Assets	1,452	(55,746)
Level 3 assets, Ending balance	2,703,508	2,376,952
Change in unrealized gains (losses) for assets still held at period end	(66,788)	156,156
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 liabilities, Beginning balance	137,851	141,867
Total gains (losses) for the period included in earnings, Liabilities	(2,319)	(24,475)
Total gains (losses) for the period included in other comprehensive income, Liabilities	(3,502)	(5,791)
Purchases, Liabilities	0	0
Issues, Liabilities	9,028	28,133
Sales, Liabilities	0	0
Settlements, Liabilities	(39,451)	(54,619)
Transfers into Level 3, Liabilities	2,213	5,147
Transfers out of Level 3, Liabilities	(8,384)	(48,605)
Level 3 liabilities, Ending balance	107,078	102,189
Change in unrealized gains (losses) included in earnings for liabilities still held at period end	(48)	(6,980)
Obligation to return securities received as collateral
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 liabilities, Beginning balance	71,399	68,204
Total gains (losses) for the period included in earnings, Liabilities	0	0
Total gains (losses) for the period included in other comprehensive income, Liabilities	0	0
Purchases, Liabilities	0	0
Issues, Liabilities	0	5,053
Sales, Liabilities	0	0
Settlements, Liabilities	(17,572)	0
Transfers into Level 3, Liabilities	0	0
Transfers out of Level 3, Liabilities	0	0
Level 3 liabilities, Ending balance	53,827	73,257
Change in unrealized gains (losses) included in earnings for liabilities still held at period end	0	0
Other
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 liabilities, Beginning balance	66,452	73,663
Total gains (losses) for the period included in earnings, Liabilities	(2,319)	(24,475)
Total gains (losses) for the period included in other comprehensive income, Liabilities	(3,502)	(5,791)
Purchases, Liabilities	0	0
Issues, Liabilities	9,028	23,080
Sales, Liabilities	0	0
Settlements, Liabilities	(21,879)	(54,619)
Transfers into Level 3, Liabilities	2,213	5,147
Transfers out of Level 3, Liabilities	(8,384)	(48,605)
Level 3 liabilities, Ending balance	53,251	28,932
Change in unrealized gains (losses) included in earnings for liabilities still held at period end	(48)	(6,980)
Trading securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	2,041,954	1,182,319
Total gains (losses) for the period included in earnings, Assets	(86,296)	149,674
Total gains (losses) for the period included in other comprehensive income, Assets	(5,778)	0
Purchases, Assets	356,780	494,881
Issues, Assets	0	0
Sales, Assets	(2,059)	(626)
Settlements, Assets	(141,812)	(9,895)
Transfers into Level 3, Assets	78,484	145
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	2,241,273	1,816,498
Change in unrealized gains (losses) for assets still held at period end	(88,871)	148,307
Trading account, debt securities | Foreign government and official institution bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	101	1,168
Total gains (losses) for the period included in earnings, Assets	(1)	122
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	0	7
Issues, Assets	0	0
Sales, Assets	0	(7)
Settlements, Assets	(100)	(1,140)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	0	150
Change in unrealized gains (losses) for assets still held at period end	0	(1)
Trading account, debt securities | Corporate bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	0
Total gains (losses) for the period included in earnings, Assets	(3,751)
Total gains (losses) for the period included in other comprehensive income, Assets	0
Purchases, Assets	38,158
Issues, Assets	0
Sales, Assets	0
Settlements, Assets	0
Transfers into Level 3, Assets	78,460
Transfers out of Level 3, Assets	0
Level 3 assets, Ending balance	112,867
Change in unrealized gains (losses) for assets still held at period end	(3,751)
Trading account, debt securities | Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	1,352,755	668,911
Total gains (losses) for the period included in earnings, Assets	(74,833)	108,122
Total gains (losses) for the period included in other comprehensive income, Assets	(5,778)	0
Purchases, Assets	311,613	345,917
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(121,635)	(4,191)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	1,462,122	1,118,759
Change in unrealized gains (losses) for assets still held at period end	(74,912)	107,898
Trading account, debt securities | Other debt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	536,846	334,124
Total gains (losses) for the period included in earnings, Assets	(8,673)	42,225
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	0	141,000
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	0	0
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	528,173	517,349
Change in unrealized gains (losses) for assets still held at period end	(8,673)	42,225
Trading account, equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	152,252	178,116
Total gains (losses) for the period included in earnings, Assets	962	(795)
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	7,009	7,957
Issues, Assets	0	0
Sales, Assets	(2,059)	(619)
Settlements, Assets	(20,077)	(4,564)
Transfers into Level 3, Assets	24	145
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	138,111	180,240
Change in unrealized gains (losses) for assets still held at period end	(1,535)	(1,815)
Trading derivatives—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	58,906	81,096
Total gains (losses) for the period included in earnings, Assets	2,123	(12,416)
Total gains (losses) for the period included in other comprehensive income, Assets	981	1,836
Purchases, Assets	670	4
Issues, Assets	(312)	(355)
Sales, Assets	0	0
Settlements, Assets	(7,460)	(10,117)
Transfers into Level 3, Assets	(14,859)	10,271
Transfers out of Level 3, Assets	4,087	(55,284)
Level 3 assets, Ending balance	44,136	15,035
Change in unrealized gains (losses) for assets still held at period end	23,415	(14,426)
Trading derivatives—net | Interest rate contracts—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	39,486	48,629
Total gains (losses) for the period included in earnings, Assets	(10,625)	(16,890)
Total gains (losses) for the period included in other comprehensive income, Assets	(602)	(1,036)
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	2,889	1,267
Transfers into Level 3, Assets	(13,741)	10,595
Transfers out of Level 3, Assets	5,383	(53,445)
Level 3 assets, Ending balance	22,790	(10,880)
Change in unrealized gains (losses) for assets still held at period end	8,860	(18,757)
Trading derivatives—net | Foreign exchange contracts—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	10,198	11,345
Total gains (losses) for the period included in earnings, Assets	3,559	(2,797)
Total gains (losses) for the period included in other comprehensive income, Assets	862	999
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	434	417
Transfers into Level 3, Assets	(1,118)	(324)
Transfers out of Level 3, Assets	(1,164)	59
Level 3 assets, Ending balance	12,771	9,699
Change in unrealized gains (losses) for assets still held at period end	6,085	(2,220)
Trading derivatives—net | Equity contracts—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	8,258	16,928
Total gains (losses) for the period included in earnings, Assets	9,284	8,065
Total gains (losses) for the period included in other comprehensive income, Assets	725	1,874
Purchases, Assets	0	4
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(10,713)	(11,696)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	(132)	(116)
Level 3 assets, Ending balance	7,422	15,059
Change in unrealized gains (losses) for assets still held at period end	8,565	7,327
Trading derivatives—net | Commodity contracts—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	(45)	91
Total gains (losses) for the period included in earnings, Assets	25	(128)
Total gains (losses) for the period included in other comprehensive income, Assets	(4)	(1)
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(6)	(6)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	(30)	(44)
Change in unrealized gains (losses) for assets still held at period end	26	(128)
Trading derivatives—net | Credit derivatives—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	660	3,739
Total gains (losses) for the period included in earnings, Assets	(180)	(661)
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(64)	(99)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	(1,782)
Level 3 assets, Ending balance	416	1,197
Change in unrealized gains (losses) for assets still held at period end	(179)	(648)
Trading derivatives—net | Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	349	364
Total gains (losses) for the period included in earnings, Assets	60	(5)
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	670	0
Issues, Assets	(312)	(355)
Sales, Assets	0	0
Settlements, Assets	0	0
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	767	4
Change in unrealized gains (losses) for assets still held at period end	58	0
Available-for-sale debt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	204,805	253,964
Total gains (losses) for the period included in earnings, Assets	(12,495)	1,681
Total gains (losses) for the period included in other comprehensive income, Assets	12,193	20,605
Purchases, Assets	39	205,826
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(7,598)	(140,321)
Transfers into Level 3, Assets	0	26
Transfers out of Level 3, Assets	(743)	0
Level 3 assets, Ending balance	196,201	341,781
Change in unrealized gains (losses) for assets still held at period end	(390)	18,340
Available-for-sale debt securities | Corporate bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	5,172	2,000
Total gains (losses) for the period included in earnings, Assets	324	(2)
Total gains (losses) for the period included in other comprehensive income, Assets	(139)	243
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	0	(4)
Transfers into Level 3, Assets	0	26
Transfers out of Level 3, Assets	(743)	0
Level 3 assets, Ending balance	4,614	2,263
Change in unrealized gains (losses) for assets still held at period end	157	241
Available-for-sale debt securities | Residential mortgage-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	15	15
Total gains (losses) for the period included in earnings, Assets	0	0
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	0	0
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	15	15
Change in unrealized gains (losses) for assets still held at period end	0	0
Available-for-sale debt securities | Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	132,951	182,938
Total gains (losses) for the period included in earnings, Assets	0	1,597
Total gains (losses) for the period included in other comprehensive income, Assets	9,973	15,841
Purchases, Assets	0	205,611
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	0	(133,267)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	142,924	272,720
Change in unrealized gains (losses) for assets still held at period end	9,973	13,492
Available-for-sale debt securities | Other debt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	66,667	69,011
Total gains (losses) for the period included in earnings, Assets	(12,819)	86
Total gains (losses) for the period included in other comprehensive income, Assets	2,359	4,521
Purchases, Assets	39	215
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(7,598)	(7,050)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	48,648	66,783
Change in unrealized gains (losses) for assets still held at period end	(10,520)	4,607
Equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	87,814	74,287
Total gains (losses) for the period included in earnings, Assets	(149)	4,945
Total gains (losses) for the period included in other comprehensive income, Assets	445	268
Purchases, Assets	5,390	5,900
Issues, Assets	0	0
Sales, Assets	(519)	(1,474)
Settlements, Assets	0	0
Transfers into Level 3, Assets	779	0
Transfers out of Level 3, Assets	(1,892)	(462)
Level 3 assets, Ending balance	91,868	83,465
Change in unrealized gains (losses) for assets still held at period end	(542)	4,063
Equity securities | Nonmarketable equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	87,814	74,287
Total gains (losses) for the period included in earnings, Assets	(149)	4,945
Total gains (losses) for the period included in other comprehensive income, Assets	445	268
Purchases, Assets	5,390	5,900
Issues, Assets	0	0
Sales, Assets	(519)	(1,474)
Settlements, Assets	0	0
Transfers into Level 3, Assets	779	0
Transfers out of Level 3, Assets	(1,892)	(462)
Level 3 assets, Ending balance	91,868	83,465
Change in unrealized gains (losses) for assets still held at period end	(542)	4,063
Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	139,120	92,292
Total gains (losses) for the period included in earnings, Assets	(400)	(128)
Total gains (losses) for the period included in other comprehensive income, Assets	133	101
Purchases, Assets	8,898	27,955
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(17,721)	(48)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	130,030	120,173
Change in unrealized gains (losses) for assets still held at period end	¥ (400)	¥ (128)

Fair Value (Quantitative Inform

Fair Value (Quantitative Information about Level 3 Fair Value Measurements) (Detail) - Fair Value, Measurements, Recurring - Level 3 ¥ in Millions	Sep. 30, 2024 JPY (¥)	Mar. 31, 2024 JPY (¥)
Interest rate contracts—net | Option model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 27,919	¥ 41,687
Interest rate contracts—net | Option model | Correlation between interest rates | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.300	0.300
Interest rate contracts—net | Option model | Correlation between interest rates | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.975	0.607
Interest rate contracts—net | Option model | Correlation between interest rates | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.596	0.446
Interest rate contracts—net | Option model | Correlation between interest rate and foreign exchange rate | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.050	(0.020)
Interest rate contracts—net | Option model | Correlation between interest rate and foreign exchange rate | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.600	0.600
Interest rate contracts—net | Option model | Correlation between interest rate and foreign exchange rate | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.345	0.350
Interest rate contracts—net | Option model | Volatility | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.712	0.612
Interest rate contracts—net | Option model | Volatility | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	1.045	0.806
Interest rate contracts—net | Option model | Volatility | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.779	0.756
Foreign exchange contracts—net | Option model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 12,571	¥ 9,800
Foreign exchange contracts—net | Option model | Correlation between interest rates | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.300	0.300
Foreign exchange contracts—net | Option model | Correlation between interest rates | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.700	0.700
Foreign exchange contracts—net | Option model | Correlation between interest rates | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.428	0.482
Foreign exchange contracts—net | Option model | Correlation between interest rate and foreign exchange rate | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.163	0.176
Foreign exchange contracts—net | Option model | Correlation between interest rate and foreign exchange rate | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.600	0.600
Foreign exchange contracts—net | Option model | Correlation between interest rate and foreign exchange rate | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.336	0.363
Foreign exchange contracts—net | Option model | Volatility | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.106	0.099
Foreign exchange contracts—net | Option model | Volatility | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.210	0.213
Foreign exchange contracts—net | Option model | Volatility | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.139	0.141
Foreign exchange contracts—net | Option model | Correlation between foreign exchange rates | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.500	0.500
Foreign exchange contracts—net | Option model | Correlation between foreign exchange rates | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.664	0.706
Foreign exchange contracts—net | Option model | Correlation between foreign exchange rates | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.582	0.664
Equity contracts—net | Option model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 3,062	¥ 4,414
Equity contracts—net | Option model | Volatility | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.230	0.250
Equity contracts—net | Option model | Volatility | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.370	0.370
Equity contracts—net | Option model | Volatility | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.270	0.339
Equity contracts—net | Option model | Correlation between foreign exchange rate and equity | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.060	0
Equity contracts—net | Option model | Correlation between foreign exchange rate and equity | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.250	0.300
Equity contracts—net | Option model | Correlation between foreign exchange rate and equity | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.100	0.200
Equity contracts—net | Option model | Correlation between equities | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.088	0.050
Equity contracts—net | Option model | Correlation between equities | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.950	0.760
Equity contracts—net | Option model | Correlation between equities | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.596	0.575
Asset-backed securities | Internal model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 1,324,522	¥ 1,248,241
Asset-backed securities | Internal model | Asset correlations
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.030
Asset-backed securities | Internal model | Asset correlations | Weighted average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.030
Asset-backed securities | Internal model | Discount factor | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.012	0.014
Asset-backed securities | Internal model | Discount factor | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.014	0.016
Asset-backed securities | Internal model | Discount factor | Weighted average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.013	0.014
Asset-backed securities | Internal model | Prepayment rate
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.254	0.177
Asset-backed securities | Internal model | Prepayment rate | Weighted average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.254	0.177
Asset-backed securities | Internal model | Probability of default | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0	0
Asset-backed securities | Internal model | Probability of default | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.990	0.930
Asset-backed securities | Internal model | Probability of default | Weighted average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0	0
Asset-backed securities | Internal model | Recovery rate
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.631	0.550
Asset-backed securities | Internal model | Recovery rate | Weighted average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.631	0.550
Other debt securities | Discounted cash flow
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 570,116	¥ 587,272
Other debt securities | Discounted cash flow | Liquidity premium | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.016	0.009
Other debt securities | Discounted cash flow | Liquidity premium | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.032	0.032
Other debt securities | Discounted cash flow | Liquidity premium | Weighted average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.029	0.028
Corporate bonds | Discounted cash flow
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 112,867
Corporate bonds | Discounted cash flow | Liquidity premium | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0
Corporate bonds | Discounted cash flow | Liquidity premium | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.002
Corporate bonds | Discounted cash flow | Liquidity premium | Weighted average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.001

Fair Value (Carrying Value of A

Fair Value (Carrying Value of Assets Measured at Fair Value on Nonrecurring Basis by Level) (Detail) - Fair Value, Measurements, Nonrecurring - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	¥ 48,525	¥ 54,635
Loans Receivable, Fair Value Disclosure	577,632	637,457
Loans held for sale	415,216	472,711
Collateral dependent loans	162,416	164,746
Premises and equipment	5,902	11,193
Intangible assets	169	5,174
Other assets	21,372	51,048
Investments in equity method investees	2,094	29,503
Other	19,278	21,545
Total	653,600	759,507
Investment securities valued at net asset value	19,833	18,037
Unfunded commitments related to investment securities valued at net asset value	22,377	24,208
Level 1
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	0	0
Loans Receivable, Fair Value Disclosure	1,990	2,271
Loans held for sale	0	0
Collateral dependent loans	1,990	2,271
Premises and equipment	0	0
Intangible assets	0	0
Other assets	0	0
Investments in equity method investees	0	0
Other	0	0
Total	1,990	2,271
Level 2
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	12,290	9,460
Loans Receivable, Fair Value Disclosure	4,689	5,181
Loans held for sale	0	0
Collateral dependent loans	4,689	5,181
Premises and equipment	0	0
Intangible assets	0	0
Other assets	5,154	32,481
Investments in equity method investees	0	27,801
Other	5,154	4,680
Total	22,133	47,122
Level 3
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	36,235	45,175
Loans Receivable, Fair Value Disclosure	570,953	630,005
Loans held for sale	415,216	472,711
Collateral dependent loans	155,737	157,294
Premises and equipment	5,902	11,193
Intangible assets	169	5,174
Other assets	16,218	18,567
Investments in equity method investees	2,094	1,702
Other	14,124	16,865
Total	¥ 629,477	¥ 710,114

Fair Value (Losses (Gains) Reco

Fair Value (Losses (Gains) Recorded as a Result of Changes in Fair Value Measured on a Nonrecurring Basis) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	¥ 62,475	¥ 91,492
Investment securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	8,473	8,971
Loans
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	23,967	45,660
Loans | Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	1,480	11,096
Loans | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	22,487	34,564
Premises and equipment
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	13,072	1,142
Intangible assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	1,706	11,433
Other assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	15,257	24,286
Other assets | Investments in equity method investees
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	274	12,687
Other assets | Other
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Gains (Losses) Nonrecurring Changes In Fair Value	¥ 14,983	¥ 11,599

Fair Value (Narrative) (Details

Fair Value (Narrative) (Details) - Level 3	Sep. 30, 2024 JPY (¥)	Mar. 31, 2024 JPY (¥)
Minimum | Price volatility
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale, measurement input	6.67	4.21
Minimum | Discount factor
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale, measurement input	0.0133	0.0083
Maximum | Price volatility
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale, measurement input	100	100
Maximum | Discount factor
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale, measurement input	0.1036	0.1187
Weighted average | Price volatility
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale, measurement input	95.61	83.38
Weighted average | Discount factor
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale, measurement input	0.1011	0.1151

Fair Value (Gains (Losses) Rela

Fair Value (Gains (Losses) Related to Instruments for which Fair Value Option was Elected) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Financial liabilities:
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	¥ 22,713	¥ (3,025)
Financial liabilities: | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	22,713	(3,025)
Financial liabilities: | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	0	0
Financial liabilities: | Other short-term borrowings
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	6,225	2,592
Financial liabilities: | Other short-term borrowings | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	6,225	2,592
Financial liabilities: | Other short-term borrowings | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	0	0
Financial liabilities: | Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	16,488	(5,617)
Financial liabilities: | Long-term debt | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	16,488	(5,617)
Financial liabilities: | Long-term debt | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	0	0
Financial assets:
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	(431,517)	1,165,907
Financial assets: | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	384,525	(596,477)
Financial assets: | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	(816,042)	1,762,384
Financial assets: | Trading account securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	(431,517)	1,165,907
Financial assets: | Trading account securities | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	384,525	(596,477)
Financial assets: | Trading account securities | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	¥ (816,042)	¥ 1,762,384

Fair Value (Differences between

Fair Value (Differences between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2024	Mar. 31, 2024
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining aggregate contractual amounts outstanding, Financial liabilities	¥ 205,399	¥ 246,153
Fair value	200,462	234,909
Fair value over (under) remaining aggregate contractual amounts outstanding, Financial liabilities	(4,937)	(11,244)
Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining aggregate contractual amounts outstanding, Financial liabilities	205,399	246,153
Fair value	200,462	234,909
Fair value over (under) remaining aggregate contractual amounts outstanding, Financial liabilities	¥ (4,937)	¥ (11,244)

Fair Value (Summary of Carrying

Fair Value (Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments Not Carried at Fair Value on Recurring Basis on Balance Sheets by Level) (Detail) - JPY (¥) ¥ in Billions	Sep. 30, 2024	Mar. 31, 2024
Carrying amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	¥ 4,056	¥ 4,417
Interest-earning deposits in other banks	104,084	105,702
Call loans and funds sold	1,463	1,738
Receivables under resale agreements	18,414	18,824
Receivables under securities borrowing transactions	5,535	5,001
Investment securities	22,739	24,844
Loans, net of allowance for credit losses	128,849	126,555
Other financial assets	9,453	11,761
Non-interest-bearing	38,259	38,805
Interest-bearing	206,662	208,360
Total deposits	244,921	247,165
Call money and funds purchased	4,944	5,094
Payables under repurchase agreements	37,724	35,690
Payables under securities lending transactions	644	1,017
Due to trust account and other short-term borrowings	27,278	15,747
Long-term debt	24,418	39,833
Other financial liabilities	8,192	9,081
Carrying amounts of investments in equity method investees	4,197	4,116
Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	4,056	4,417
Interest-earning deposits in other banks	104,084	105,702
Call loans and funds sold	1,463	1,738
Receivables under resale agreements	18,414	18,824
Receivables under securities borrowing transactions	5,535	5,001
Investment securities	22,549	24,558
Loans, net of allowance for credit losses	129,101	126,707
Other financial assets	9,453	11,761
Non-interest-bearing	38,259	38,805
Interest-bearing	206,815	208,512
Total deposits	245,074	247,317
Call money and funds purchased	4,944	5,094
Payables under repurchase agreements	37,724	35,690
Payables under securities lending transactions	644	1,017
Due to trust account and other short-term borrowings	27,278	15,747
Long-term debt	23,958	39,103
Other financial liabilities	8,192	9,081
Estimated fair value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	4,056	4,417
Interest-earning deposits in other banks	0	0
Call loans and funds sold	0	0
Receivables under resale agreements	0	0
Receivables under securities borrowing transactions	0	0
Investment securities	12,927	14,522
Loans, net of allowance for credit losses	2	2
Other financial assets	0	0
Non-interest-bearing	0	0
Interest-bearing	0	0
Total deposits	0	0
Call money and funds purchased	0	0
Payables under repurchase agreements	0	0
Payables under securities lending transactions	0	0
Due to trust account and other short-term borrowings	0	0
Long-term debt	0	0
Other financial liabilities	0	0
Estimated fair value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	0	0
Interest-earning deposits in other banks	104,084	105,702
Call loans and funds sold	1,463	1,738
Receivables under resale agreements	18,414	18,824
Receivables under securities borrowing transactions	5,535	5,001
Investment securities	7,799	7,457
Loans, net of allowance for credit losses	298	295
Other financial assets	9,453	11,761
Non-interest-bearing	38,259	38,805
Interest-bearing	206,815	208,512
Total deposits	245,074	247,317
Call money and funds purchased	4,944	5,094
Payables under repurchase agreements	37,724	35,690
Payables under securities lending transactions	644	1,017
Due to trust account and other short-term borrowings	27,278	15,747
Long-term debt	23,958	39,103
Other financial liabilities	8,192	9,081
Estimated fair value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	0	0
Interest-earning deposits in other banks	0	0
Call loans and funds sold	0	0
Receivables under resale agreements	0	0
Receivables under securities borrowing transactions	0	0
Investment securities	1,823	2,579
Loans, net of allowance for credit losses	128,801	126,410
Other financial assets	0	0
Non-interest-bearing	0	0
Interest-bearing	0	0
Total deposits	0	0
Call money and funds purchased	0	0
Payables under repurchase agreements	0	0
Payables under securities lending transactions	0	0
Due to trust account and other short-term borrowings	0	0
Long-term debt	0	0
Other financial liabilities	¥ 0	¥ 0

Investments in Equity Method _3

Investments in Equity Method Investees (Summarized Operating Results of Morgan Stanley) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Net income applicable to Morgan Stanley	¥ 995,383	¥ 271,961
Morgan Stanley
Income Statement [Abstract]
Net revenues	4,640,000	3,769,000
Total non-interest expenses	3,351,000	2,887,000
Income from continuing operations before income taxes	1,266,000	840,000
Net income applicable to Morgan Stanley	¥ 956,000	¥ 647,000

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Detail) - JPY (¥) ¥ / shares in Units, ¥ in Millions			6 Months Ended
	Nov. 29, 2024	Nov. 14, 2024	Sep. 30, 2024	Sep. 30, 2023
Subsequent Event [Line Items]
Dividends declared (in Yen per share)			¥ 16	¥ 20.50
Subsequent Event
Subsequent Event [Line Items]
Dividends declared (in Yen per share)		¥ 25
Dividends, total amount		¥ 292,259
Number of shares authorized to be repurchased (in shares)		230,000,000
Stock repurchase program, authorized amount		¥ 300,000
Treasury stock, shares retired (in shares)	270,000,000
Subsequent Event | Common Stock
Subsequent Event [Line Items]
Shares repurchased as % of total shares		2%