Mitsubishi UFJ Financial (MUFG) 6-K 27 Dec 22 Current report (foreign) Financial data

Cover Page

Cover Page	6 Months Ended
	Sep. 30, 2022
Cover [Abstract]
Document Type	6-K
Entity Registrant Name	MITSUBISHI UFJ FINANCIAL GROUP, INC.
Document Period End Date	Sep. 30, 2022
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, 2022	Mar. 31, 2022
ASSETS
Cash and due from banks	¥ 51,855,923	¥ 50,972,491
Interest-earning deposits in other banks	49,828,271	58,848,056
Cash, due from banks and interest-earning deposits in other banks	101,684,194	109,820,547
Call loans, funds sold, and receivables under resale agreements	14,999,243	13,819,157
Receivables under securities borrowing transactions	4,487,405	4,496,376
Trading account assets (including assets pledged that secured parties are permitted to sell or repledge of ¥8,857,073 and ¥8,809,236 at March 31, 2022 and September 30, 2022) (including ¥17,135,481 and ¥15,072,307 at March 31, 2022 and September 30, 2022 measured at fair value under fair value option)	47,934,649	42,668,336
Investment securities:
Available-for-sale debt securities (including assets pledged that secured parties are permitted to sell or repledge of ¥3,151,799 and ¥7,654,927 at March 31, 2022 and September 30, 2022)	43,241,446	45,798,442
Held-to-maturity debt securities (including assets pledged that secured parties are permitted to sell or repledge of ¥148,763 and ¥5,293,172 at March 31, 2022 and September 30, 2022) (fair value of ¥4,606,305 and ¥13,630,321 at March 31, 2022 and September 30, 2022)	13,847,100	4,595,109
Equity securities (including assets pledged that secured parties are permitted to sell or repledge of ¥741 and ¥726 at March 31, 2022 and September 30, 2022) (including ¥5,111,630 and ¥4,634,786 at March 31, 2022 and September 30, 2022 measured at fair value)	4,970,762	5,422,200
Total investment securities	62,059,308	55,815,751
Loans, net of unearned income, unamortized premiums and deferred loan fees (including assets pledged that secured parties are permitted to sell or repledge of ¥167,152 and ¥157,875 at March 31, 2022 and September 30, 2022)	122,928,821	113,149,393
Allowance for credit losses	(1,257,237)	(1,470,701)
Net loans	121,671,584	111,678,692
Premises and equipment—net	847,577	815,829
Customers’ acceptance liability	397,310	371,034
Intangible assets—net	1,202,365	1,148,601
Goodwill	341,022	303,611
Other assets (including assets held for sale relating to transferred business of MUFG Union Bank of ¥11,621,567 and ¥13,416,543 at March 31, 2022 and September 30, 2022 and net of allowance for credit losses of ¥13,998 and ¥14,499 at March 31, 2022 and September 30, 2022)	30,126,259	26,712,084
Total assets	385,750,916	367,650,018
Deposits:
Domestic offices, Non-interest-bearing	33,346,784	33,584,539
Domestic offices, Interest-bearing	143,328,889	144,412,415
Overseas offices, principally interest-bearing	54,520,625	46,592,989
Total deposits	231,196,298	224,589,943
Call money, funds purchased, and payables under repurchase agreements	38,089,821	30,141,925
Payables under securities lending transactions	901,612	1,021,887
Due to trust account and other short-term borrowings (including ¥123,028 and ¥14,812 at March 31, 2022 and September 30, 2022 measured at fair value under fair value option)	12,790,336	22,850,600
Trading account liabilities	17,803,624	11,019,046
Bank acceptances outstanding	397,310	371,034
Long-term debt (including ¥483,051 and ¥450,403 at March 31, 2022 and September 30, 2022 measured at fair value under fair value option)	37,403,952	34,696,599
Other liabilities (including liabilities held for sale relating to transferred business of MUFG Union Bank of ¥11,157,660 and ¥13,750,553 at March 31, 2022 and September 30, 2022)	31,020,455	26,662,462
Total liabilities	369,603,408	351,353,496
Commitments and contingent liabilities
Mitsubishi UFJ Financial Group shareholders’ equity:
Capital stock—common stock authorized, 33,000,000,000 shares; common stock issued,13,281,995,120 shares and 13,281,995,120 shares at March 31, 2022 and September 30, 2022, with no stated value	2,090,270	2,090,270
Capital surplus	5,317,824	5,327,772
Retained earnings:
Appropriated for legal reserve	239,571	239,571
Unappropriated retained earnings	6,975,596	8,172,646
Accumulated other comprehensive income, net of taxes	1,425,171	227,033
Treasury stock, at cost—668,286,238 common shares and 992,816,845 common shares at March 31, 2022 and September 30, 2022	(689,101)	(452,224)
Total Mitsubishi UFJ Financial Group shareholders’ equity	15,359,331	15,605,068
Noncontrolling interests	788,177	691,454
Total equity	16,147,508	16,296,522
Total liabilities and equity	385,750,916	367,650,018
Consolidated VIEs
ASSETS
Cash and due from banks	16,730	6,728
Interest-earning deposits in other banks	27,836	27,382
Trading account assets (including assets pledged that secured parties are permitted to sell or repledge of ¥8,857,073 and ¥8,809,236 at March 31, 2022 and September 30, 2022) (including ¥17,135,481 and ¥15,072,307 at March 31, 2022 and September 30, 2022 measured at fair value under fair value option)	1,398,228	1,252,308
Investment securities:
Total investment securities	1,965,151	1,824,892
Net loans	16,605,245	15,651,462
All other assets	296,129	195,795
Total assets	20,309,319	18,958,567
Deposits:
Total deposits	0	0
Long-term debt (including ¥483,051 and ¥450,403 at March 31, 2022 and September 30, 2022 measured at fair value under fair value option)	402,654	449,231
Other short-term borrowings	39,671	39,582
All other liabilities	73,509	95,219
Total liabilities	¥ 515,834	¥ 584,032

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Trading account assets pledged that secured parties are permitted to sell or repledge	¥ 8,809,236	¥ 8,857,073
Trading account assets measured at fair value under fair value option	15,072,307	17,135,481
Available-for-sale debt securities pledged that secured parties are permitted to sell or repledge	7,654,927	3,151,799
Held-to-maturity debt securities pledged that secured parties are permitted to sell or repledge	5,293,172	148,763
Held-to-maturity debt securities, Fair value	13,630,321	4,606,305
Equity securities pledged that secured parties are permitted to sell or repledge	726	741
Equity securities measured at fair value	4,634,786	5,111,630
Loans, net of unearned income, unamortized premiums and deferred loan fees, pledged that secured parties are permitted to sell or repledge	157,875	167,152
Assets reclassified, excluding cash and cash equivalents	1,794,976
Allowance for credit losses	14,499	13,998
Due to trust account and other short-term borrowings measured at fair value under fair value option	14,812	123,028
Long-term debt measured at fair value under fair value option	450,403	¥ 483,051
Liabilities reclassified	¥ 2,592,893
Common stock, authorized	33,000,000,000	33,000,000,000
Common stock, issued	13,281,995,120	13,281,995,120
Common stock, stated value	¥ 0	¥ 0
Treasury stock, shares	992,816,845	668,286,238
Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Assets reclassified, excluding cash and cash equivalents	¥ 13,416,543	¥ 11,621,567
Liabilities reclassified	¥ 13,750,553	¥ 11,157,660

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - JPY (¥) shares in Thousands, ¥ in Millions		6 Months Ended
		Sep. 30, 2022	Sep. 30, 2021
Interest income:
Loans, including fees		¥ 1,201,227	¥ 851,515
Deposits in other banks		103,477	27,048
Investment securities		237,410	162,407
Trading account assets		250,571	194,044
Call loans, funds sold, and receivables under resale agreements and securities borrowing transactions		30,721	16,694
Total		1,823,406	1,251,708
Interest expense:
Deposits		334,538	111,927
Call money, funds purchased, and payables under repurchase agreements and securities lending transactions		106,351	15,870
Due to trust account, other short-term borrowings and trading account liabilities		59,154	20,879
Long-term debt		156,629	123,580
Total		656,672	272,256
Net interest income		1,166,734	979,452
Provision for (reversal of) credit losses		(97,785)	(10,838)
Net interest income after reversal of credit losses		1,264,519	990,290
Non-interest income:
Fees and commissions income		787,642	798,065
Foreign exchange gains (losses) —net		(126,755)	5,382
Trading account profits (losses) —net		(1,367,090)	59,171
Investment securities gains (losses) —net		(493,309)	335,333
Equity in earnings of equity method investees—net		186,906	216,085
Other non-interest income		38,856	93,305
Total		(973,750)	1,507,341
Non-interest expense:
Salaries and employee benefits		659,606	638,930
Occupancy expenses—net		78,602	84,227
Fees and commissions expenses		161,797	157,911
Outsourcing expenses, including data processing		178,132	152,125
Depreciation of premises and equipment		34,819	40,505
Amortization of intangible assets		133,124	129,528
Insurance premiums, including deposit insurance		36,745	47,416
Communications		29,273	28,819
Taxes and public charges		51,095	51,178
Reversal of off-balance sheet credit instruments		(12,112)	(6,381)
Reversal of impairment of assets held for sale		(134,141)	0
Loss on valuation adjustment for loans held for sale		209,107	0
Other non-interest expenses		156,407	122,844
Total		1,582,454	1,447,102
Income (loss) before income tax expense (benefit)		(1,291,685)	1,050,529
Income tax expense (benefit)		(340,290)	293,696
Net income (loss) before attribution of noncontrolling interests		(951,395)	756,833
Net income attributable to noncontrolling interests		62,734	19,222
Net income (loss) attributable to Mitsubishi UFJ Financial Group		(1,014,129)	737,611
Effect of dilutive instruments:
Restricted stock units and performance stock units	[1]	(1,793)	(2,559)
Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions		¥ (1,015,922)	¥ 735,052
Shares used for the computation of basic EPS and diluted EPS (Denominator):
Weighted average common shares outstanding (in shares)		12,500,816	12,852,177
Effect of dilutive instruments:
Stock acquisition rights (in shares)	[1]	0	0
Weighted average common shares for diluted computation (in shares)		12,500,816	12,852,177
Earnings (loss) 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)		¥ (81.13)	¥ 57.39
Diluted earnings (loss) per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)	[1]	(81.27)	57.19
Cash dividend per common share (in JPY per share)		¥ 14.50	¥ 12.50
[1]For the six months ended September 30, 2021 and 2022, 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, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss) before attribution of noncontrolling interests	¥ (951,395)	¥ 756,833
Other comprehensive income (loss), net of tax:
Net unrealized losses on investment securities	(193,709)	(14,505)
Net debt valuation adjustments	45,485	5,965
Net unrealized losses on derivatives qualifying for cash flow hedges	(21,360)	(5,576)
Defined benefit plans	(16,865)	(9,293)
Foreign currency translation adjustments	1,449,622	250,603
Total	1,263,173	227,194
Comprehensive income	311,778	984,027
Net income attributable to noncontrolling interests	62,734	19,222
Other comprehensive income attributable to noncontrolling interests	65,035	19,204
Comprehensive income attributable to Mitsubishi UFJ Financial Group	¥ 184,009	¥ 945,601

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Equity (Unaudited) - JPY (¥) ¥ in Millions	Total	Capital stock:	Capital surplus:	Retained earnings appropriated for legal reserve:	Unappropriated retained earnings:	Accumulated other comprehensive income (loss), net of taxes:	Treasury stock, at cost:	Noncontrolling interests:	Mitsubishi UFJ Financial Group Shareholders' Equity [Member]
Balance at beginning of period at Mar. 31, 2021		¥ 2,090,270	¥ 5,533,761	¥ 239,571	¥ 8,589,900	¥ (289,481)	¥ (503,072)	¥ 583,605
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation			(6,937)
Other—net			(2,511)					(18)
Common stock—¥12.50 per share and ¥14.50 per share in 2021 and 2022					(160,579)
Net change during the period	¥ 227,194					207,990		19,204
Purchases of shares of treasury stock							(8,507)
Sales of shares of treasury stock							5,577
Net increase resulting from changes in interests in consolidated subsidiaries, consolidated VIEs, and affiliated companies							(355)
Initial subscriptions of noncontrolling interests								1,627
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders								71,318
Decrease in noncontrolling interests related to deconsolidation of subsidiaries								(9,919)
Net income (loss) before attribution of noncontrolling interests	756,833				737,611			19,222
Dividends paid to noncontrolling interests								(17,458)
Balance at end of period at Sep. 30, 2021	17,100,819	2,090,270	5,524,313	239,571	9,166,932	(81,491)	(506,357)	667,581	¥ 16,433,238
Balance at beginning of period at Mar. 31, 2022	16,296,522	2,090,270	5,327,772	239,571	8,172,646	227,033	(452,224)	691,454
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation			(10,190)
Other—net			242					55
Common stock—¥12.50 per share and ¥14.50 per share in 2021 and 2022					(182,921)
Net change during the period	1,263,173					1,198,138		65,035
Purchases of shares of treasury stock							(238,784)
Sales of shares of treasury stock							1,918
Net increase resulting from changes in interests in consolidated subsidiaries, consolidated VIEs, and affiliated companies							(11)
Initial subscriptions of noncontrolling interests								16
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders								(3,403)
Decrease in noncontrolling interests related to deconsolidation of subsidiaries								(12,556)
Net income (loss) before attribution of noncontrolling interests	(951,395)				(1,014,129)			62,734
Dividends paid to noncontrolling interests								(15,158)
Balance at end of period at Sep. 30, 2022	¥ 16,147,508	¥ 2,090,270	¥ 5,317,824	¥ 239,571	¥ 6,975,596	¥ 1,425,171	¥ (689,101)	¥ 788,177	¥ 15,359,331

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Equity (Unaudited) (Parenthetical) - ¥ / shares	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash dividends: Common stock, per share (in JPY per share)	¥ 14.50	¥ 12.50
Unappropriated retained earnings:
Cash dividends: Common stock, per share (in JPY per share)	¥ 14.50	¥ 12.50

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Unaudited) - JPY (¥) ¥ in Millions	6 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Cash flows from operating activities:
Net income (loss) before attribution of noncontrolling interests	¥ (951,395)	¥ 756,833
Adjustments to reconcile net income (loss) before attribution of noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization	167,943	170,033
Reversal of credit losses	(97,785)	(10,838)
Reversal of impairment of assets held for sale	(134,141)	0
Loss on valuation adjustment for loans held for sale	209,107	0
Investment securities (gains) losses—net	493,309	(335,333)
Foreign exchange gains—net	(182,854)	(351,120)
Equity in earnings of equity method investees—net	(186,906)	(216,085)
Provision (benefit) for deferred income tax expense	(541,331)	140,264
Decrease (increase) in trading account assets, excluding foreign exchange contracts	(1,224,746)	1,354,468
Increase (decrease) in trading account liabilities, excluding foreign exchange contracts	2,548,147	(1,919,720)
Decrease (increase) in accrued interest receivable and other receivables	(68,686)	62,853
Net increase (decrease) in accrued income taxes and decrease (increase) in income tax receivables	(80,915)	52,145
Net decrease in collateral for derivative transactions	658,823	318,095
Decrease in cash collateral for the use of Bank of Japan’s settlement infrastructure	0	74,838
Other—net	(560,688)	385,916
Net cash provided by operating activities	47,882	482,349
Cash flows from investing activities:
Proceeds from sales of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)	28,509,178	36,628,771
Proceeds from maturities of Available-for-sale debt securities (including proceeds from debt securities under the fair value option)	17,429,364	13,035,476
Purchases of Available-for-sale debt securities (including purchases of debt securities under the fair value option)	(39,576,717)	(53,270,580)
Proceeds from maturities of Held-to-maturity debt securities	44,469	323,592
Purchases of Held-to-maturity debt securities	(8,392,086)	(456,091)
Proceeds from sales and redemption of Equity securities (including proceeds from equity securities under the fair value option)	1,759,782	1,104,787
Purchases of Equity securities (including purchases of equity securities under the fair value option)	(1,036,709)	(690,250)
Net decrease (increase) in loans	(3,623,985)	3,565,029
Net decrease (increase) in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions	(33,161)	2,103,589
Capital expenditures for premises and equipment	(49,054)	(52,473)
Purchases of intangible assets	(134,595)	(132,040)
Proceeds from sales of consolidated VIEs and subsidiaries—net	(28,499)	8,497
Other—net	62,856	117,577
Net cash provided by (used in) investing activities	(5,069,157)	2,285,884
Cash flows from financing activities:
Net increase (decrease) in deposits	42,228	(240,823)
Net increase in call money, funds purchased, and payables under repurchase agreements and securities lending transactions	4,545,312	204,096
Net decrease in due to trust account and other short-term borrowings	(10,018,516)	(111,665)
Proceeds from issuance of long-term debt	2,996,406	2,308,084
Repayments of long-term debt	(2,049,260)	(3,392,919)
Proceeds from sales of treasury stock	1,111	2,686
Dividends paid	(182,860)	(160,479)
Payments for acquisition of treasury stock	(238,784)	(8,507)
Other—net	(16,092)	174,193
Net cash used in financing activities	(4,920,455)	(1,225,334)
Effect of exchange rate changes on cash and cash equivalents	1,968,560	255,995
Net increase (decrease) in cash and cash equivalents	(7,973,170)	1,798,894
Cash and cash equivalents at beginning of period	111,111,544	103,328,790	¥ 103,328,790
Cash, due from banks and interest-earning deposits in other banks	101,684,194	103,610,992	109,820,547
Restricted cash included in other assets	12,622	1,316
Cash and cash equivalents reclassified as assets held for sale and included in other assets (Note 2)	1,441,558	1,515,376
Cash and cash equivalents at end of period	103,138,374	105,127,684	¥ 111,111,544
Cash paid during the period for:
Interest	552,301	298,794
Income taxes, net of refunds	273,730	94,460
Non-cash investing and financing activities:
Assets acquired under finance lease arrangements	7,308	1,231
Assets acquired under operating lease arrangements	13,582	35,475
Assets reclassified, excluding cash and cash equivalents	1,794,976	10,193,119
Liabilities reclassified	¥ 2,592,893	¥ 10,874,609

Basis of Semiannual Condensed C

Basis of Semiannual Condensed Consolidated Financial Statements	6 Months Ended
	Sep. 30, 2022
Accounting Policies [Abstract]
Basis of Semiannual 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 which are not included in the consolidated financial statements issued by MUFG and certain of its subsidiaries in accordance with 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, 2022. 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. 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. Reclassifications Certain reclassifications and format changes have been made to the unaudited condensed consolidated financial statements for the six months ended September 30, 2021 to conform to the presentation for the six months ended September 30, 2022. Accounting Changes Accounting for Obligations to Safeguard Crypto-Assets an Entity Holds for Platform Users – In March 2022, the U.S. Securities and Exchange Commission ("SEC") issued Staff Accounting Bulletin No. 121 which expresses the views of the SEC staff regarding the accounting for obligations to safeguard crypto-assets an entity holds for platform users. This guidance requires an entity that performs crypto asset custodial activities, whether directly or through an agent acting on its behalf, to record a liability with a corresponding asset. In addition, the guidance requires disclosure of the nature and amount of crypto assets the entity is responsible for safeguarding for its customers. This guidance is effective for interim and annual periods ending after June 15, 2022. The MUFG Group adopted this guidance on April 1, 2022, and there was no material impact on its financial position and results of operations. Recently Issued Accounting Pronouncements Troubled Debt Restructurings and Vintage Disclosures – In March 2022, the Financial Accounting Standards Board ("FASB") issued new guidance which eliminates the accounting and disclosure requirements for troubled debt restructurings ("TDRs") by creditors and introduces new required disclosures for loan modifications made to borrowers experiencing financial difficulty. The guidance also amends the requirement for vintage disclosures to disclose current period gross charge-offs by year of origination. This guidance is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The MUFG Group is currently evaluating what effect this guidance will have on its consolidated financial statements and related disclosures. Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions – In June 2022, the 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 is currently evaluating what effect this guidance will have on its consolidated financial statements and related disclosures.

Business Developments

Business Developments	6 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Business Developments	BUSINESS DEVELOPMENTS Sale of MUFG Union Bank and Investment in Shares of U.S. Bancorp In September 2021, the MUFG Group agreed to the sale of all shares in MUFG Union Bank, N.A. ("MUFG Union Bank"), the wholly-owned primary operating subsidiary in the United States, to U.S. Bancorp ("USB") (hereinafter referred to as the “Share Transfer”). The businesses of MUFG Union Bank that the MUFG Group transferred to U.S. Bancorp exclude the Global Corporate & Investment Banking (GCIB) business (with certain exceptions as agreed to by the parties, including certain deposits of the GCIB business retained by MUFG Union Bank), the Global Markets business to the extent related to the GCIB business and certain assets and liabilities etc. that were part of shared middle and back office functions etc. Under a legal agreement, the assets and liabilities of these operations were transferred to other entities within MUFG prior to the Share Transfer. Through this transaction, the MUFG Group aims to maximize shareholder value by improving its capital efficiency. The assets and liabilities of MUFG Union Bank, which were transferred to USB, were reclassified as held for sale, and included in Other assets and Other liabilities in the accompanying condensed consolidated balance sheets at September 30, 2022. Assets and liabilities reclassified as held for sale at March 31, 2022 and September 30, 2022 are shown below: At March 31, 2022 At September 30, 2022 (in millions) Assets held for sale: Interest-earning deposits in other banks ¥ 1,110,633 ¥ 1,251,032 Investment securities 3,188,257 3,401,195 Loans, net of allowance for credit losses 6,561,316 7,690,437 Other 761,361 1,073,879 Total ¥ 11,621,567 ¥ 13,416,543 Liabilities held for sale: Deposits ¥ 10,448,481 ¥ 12,158,738 Other 709,179 1,591,815 Total ¥ 11,157,660 ¥ 13,750,553 The carrying amount of any assets that are not covered by the guidance on long-lived assets and included in the disposal group, is necessary to be adjusted in accordance with other applicable guidance before measuring the disposal group by lower of cost or market method. The loss amount, which was recognized through lower of cost or market method from the assets and liabilities held for

Investment Securities

Investment Securities	6 Months Ended
	Sep. 30, 2022
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, 2022 and September 30, 2022: At March 31, 2022: 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 ¥ 34,383,131 ¥ 77,144 ¥ 132,511 ¥ 34,327,764 Japanese prefectural and municipal bonds 4,154,459 6,672 14,987 4,146,144 Foreign government and official institution bonds 2,671,797 8,586 49,040 2,631,343 Corporate bonds 1,081,620 9,601 1,073 1,090,148 Residential mortgage-backed securities 900,799 256 648 900,407 Asset-backed securities 1,547,098 41,544 222 1,588,420 Other debt securities 104,869 2,243 3,533 103,579 Commercial paper 1,010,607 49 19 1,010,637 Total ¥ 45,854,380 ¥ 146,095 ¥ 202,033 ¥ 45,798,442 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 1,808,312 ¥ 13,691 ¥ 3,633 ¥ 1,818,370 Japanese prefectural and municipal bonds 175,072 4 1,116 173,960 Residential mortgage-backed securities 234,652 49 8,778 225,923 Asset-backed securities 2,377,073 12,352 1,373 2,388,052 Total ¥ 4,595,109 ¥ 26,096 ¥ 14,900 ¥ 4,606,305 At September 30, 2022: Amortized Gross unrealized gains Gross unrealized losses Fair value (in millions) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 32,116,268 ¥ 30,516 ¥ 164,016 ¥ 31,982,768 Japanese prefectural and municipal bonds 3,958,306 3,316 24,732 3,936,890 Foreign government and official institution bonds 3,192,143 1,809 164,674 3,029,278 Corporate bonds 1,048,053 8,820 2,840 1,054,033 Residential mortgage-backed securities 978,426 466 512 978,380 Asset-backed securities 1,773,902 123,378 526 1,896,754 Other debt securities 277,638 2,464 7,763 272,339 Commercial paper 91,003 2 1 91,004 Total ¥ 43,435,739 ¥ 170,771 ¥ 365,064 ¥ 43,241,446 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 7,362,800 ¥ 12,002 ¥ 18,138 ¥ 7,356,664 Japanese prefectural and municipal bonds 569,921 — 3,227 566,694 Residential mortgage-backed securities 3,223,324 638 179,931 3,044,031 Asset-backed securities 2,691,055 749 28,872 2,662,932 Total ¥ 13,847,100 ¥ 13,389 ¥ 230,168 ¥ 13,630,321 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, 2022 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 ¥ 2,914 ¥ 2,913 ¥ 23,495,982 Due from one year to five years 4,301,835 4,309,074 11,570,005 Due from five years to ten years 5,305,014 5,274,804 4,409,181 Due after ten years 4,237,337 4,043,530 3,766,278 Total ¥ 13,847,100 ¥ 13,630,321 ¥ 43,241,446 Realized Gains and Losses For the six months ended September 30, 2021 and 2022, gross realized gains on sales of Available-for-sale debt securities were ¥61,902 million and ¥82,340 million, respectively, and gross realized losses on sales of Available-for-sale debt securities were ¥18,169 million and ¥72,520 million, respectively. Impairment Losses on Investment Securities For the six months ended September 30, 2021, 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 operations and were not material. For the six months ended September 30, 2022, impairment losses on Available-for-sale debt securities of ¥299,478 million were included in Investment securities gains (losses)—net in the accompanying condensed consolidated statements of operations. These were mainly the impairment losses on the Available-for-sale debt securities held by MUFG Union Bank, which were reclassified as held for sale, and included in Other assets in the accompanying condensed consolidated balance sheets at September 30, 2022. For the six months ended September 30, 2021 and 2022, the MUFG Group’s Held-to-maturity debt securities were explicitly or implicitly guaranteed by Japanese or U.S. government entities or agencies and had a long history of no credit losses or were rated investment grade. Therefore, no credit losses were expected on these securities. 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, 2022 and September 30, 2022 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, 2022: 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 ¥ 22,998,960 ¥ 126,516 ¥ 353,932 ¥ 5,995 ¥ 23,352,892 ¥ 132,511 486 Japanese prefectural and municipal bonds 2,430,603 14,864 31,139 123 2,461,742 14,987 926 Foreign government and official institution bonds 1,376,267 31,470 167,446 17,570 1,543,713 49,040 87 Corporate bonds 427,739 925 94,364 148 522,103 1,073 173 Residential mortgage-backed securities 178,857 58 391,265 590 570,122 648 12 Asset-backed securities 115,695 222 — — 115,695 222 12 Other debt securities 44,128 3,526 1,089 7 45,217 3,533 4 Commercial paper 367,043 19 — — 367,043 19 30 Total ¥ 27,939,292 ¥ 177,600 ¥ 1,039,235 ¥ 24,433 ¥ 28,978,527 ¥ 202,033 1,730 Less than 12 months 12 months or more Total At September 30, 2022: 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 ¥12,347,744 ¥ 91,378 ¥ 1,024,602 ¥ 72,638 ¥ 13,372,346 ¥ 164,016 481 Japanese prefectural and municipal bonds 2,812,129 23,102 81,348 1,630 2,893,477 24,732 1,015 Foreign government and official institution bonds 2,132,089 114,875 310,779 49,799 2,442,868 164,674 127 Corporate bonds 468,706 2,569 103,289 271 571,995 2,840 229 Residential mortgage-backed securities 42,503 1 546,372 511 588,875 512 13 Asset-backed securities 162,398 526 — — 162,398 526 12 Other debt securities 136,238 541 44,974 7,222 181,212 7,763 46 Commercial paper 35,001 1 — — 35,001 1 3 Total ¥ 18,136,808 ¥ 232,993 ¥ 2,111,364 ¥ 132,071 ¥ 20,248,172 ¥ 365,064 1,926 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, 2022, 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, 2022 and no impairment loss has been recorded. Corporate bonds As of September 30, 2022, 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, 2022, unrealized losses on these securities were primarily driven by securities guaranteed by a U.S. government agency or a government-sponsored agency which are collateralized by residential mortgage loans. Unrealized losses mainly resulted from changes in interest rates and not from changes in credit quality. The MUFG Group determined through analysis that no credit loss was identified on such securities as of September 30, 2022 because the strength of the issuers’ guarantees through direct obligations or support from the U.S. government is expected to be sufficient to recover the entire amortized cost basis of these securities. Asset-backed securities As of September 30, 2022, unrealized losses on these securities were primarily driven by certain collateralized loan obligations (“CLOs”), highly illiquid securities for which fair values are difficult to determine. 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, 2022 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, 2021 and 2022. Six months ended 2021 2022 (in millions) Net gains (losses) recognized during the period (1) ¥ 289,949 ¥ (203,007) Less: Net losses recognized during the period on equity securities sold during the period (1,913) (214) Net unrealized gains (losses) recognized during the reporting period still held at the reporting date ¥ 291,862 ¥ (202,793) 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, 2022 and September 30, 2022. March 31, September 30, (in millions) Measurement alternative balance ¥ 310,570 ¥ 335,976 The related adjustments for these securities during the six months ended September 30, 2021 and 2022 were as follows: Six months ended 2021 2022 (in millions) Measurement alternative impairment losses (1)(4) ¥ (2,834) ¥ (5,155) Measurement alternative downward changes for observable prices (1)(2)(3)(5) ¥ — ¥ (440) Measurement alternative upward changes for observable prices (1)(2)(3)(6) ¥ 1,075 ¥ 5,090 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, 2022 and September 30, 2022 were ¥12,354 million and ¥17,383 million, respectively. (5) The cumulative downward changes for observable prices at March 31, 2022 and September 30, 2022 were ¥954 million and ¥1,393 million, respectively. (6) The cumulative upward changes for observable prices at March 31, 2022 and September 30, 2022 were ¥54,223 million and ¥59,160 million, respectively.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	6 Months Ended
	Sep. 30, 2022
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, MUFG Americas Holdings Corporation ("MUAH"), Bank of Ayudhya Public Company Limited and its consolidated subsidiaries ("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, 2022 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, 2022 and September 30, 2022. Past Due At March 31, 2022: 1-3 months Greater Total Current Loans Total Past Due 90 Days and (in millions) Commercial Domestic ¥ 12,556 ¥ 9,138 ¥ 21,694 ¥ 53,953,767 ¥ 69,257 ¥ 54,044,718 ¥ 3,260 Foreign 17,405 10,598 28,003 34,578,265 374,011 34,980,279 — Residential 32,078 13,598 45,676 13,255,829 — 13,301,505 3,360 Card 10,250 26,818 37,068 427,198 — 464,266 — MUAH 625 — 625 2,741,503 70,841 2,812,969 — Krungsri 115,636 126,494 242,130 6,580,635 — 6,822,765 — Other 21,729 21,152 42,881 1,002,240 — 1,045,121 — Total ¥ 210,279 ¥ 207,798 ¥ 418,077 ¥ 112,539,437 ¥ 514,109 ¥ 113,471,623 ¥ 6,620 Unearned income, unamortized premiums—net and deferred loan fees—net (322,230) Total ¥ 113,149,393 Past Due At September 30, 2022: 1-3 months Greater Total Current Loans Total Past Due 90 Days and Accruing (in millions) Commercial Domestic ¥ 9,366 ¥ 15,786 ¥ 25,152 ¥ 54,871,771 ¥ 55,879 ¥ 54,952,802 ¥ 2,458 Foreign 151,201 88,165 239,366 41,659,645 528,543 42,427,554 7,504 Residential 32,082 12,673 44,755 13,068,638 — 13,113,393 3,836 Card 11,514 27,461 38,975 426,465 — 465,440 — MUAH 3,453 — 3,453 2,983,944 116,669 3,104,066 — Krungsri 184,445 132,236 316,681 7,653,216 3,819 7,973,716 — Other 14,071 25,152 39,223 1,232,570 — 1,271,793 — Total ¥ 406,132 ¥ 301,473 ¥ 707,605 ¥ 121,896,249 ¥ 704,910 ¥ 123,308,764 ¥ 13,798 Unearned income, unamortized premiums—net and deferred loan fees—net (379,943) Total ¥ 122,928,821 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, MUAH, 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, 2022 for further information. The information on nonaccrual loans by class at March 31, 2022 and September 30, 2022 are shown below: Recorded Loan Balance March 31, 2022: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) (in millions) Commercial Domestic ¥ 633,768 ¥ 109,919 Foreign 224,566 84,837 Residential 56,175 3,579 Card 62,578 — MUAH 15,349 — Krungsri 165,775 2,824 Other 26,618 7 Total ¥ 1,184,829 ¥ 201,166 Recorded Loan Balance September 30, 2022: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) (in millions) Commercial Domestic ¥ 343,483 ¥ 106,692 Foreign 293,576 84,058 Residential 51,364 3,773 Card 64,498 — MUAH 12,743 3,564 Krungsri 182,730 2,859 Other 32,755 7 Total ¥ 981,149 ¥ 200,953 Notes: (1) Nonaccrual loans in the above table do not include loans held for sale of ¥7,946 million and ¥45,177 million at March 31, 2022 and September 30, 2022, 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’ original 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, 2021 and 2022: 　　 September 30, 2021 September 30, 2022 (in millions) Commercial Domestic ¥ 2,004 ¥ 10,033 Foreign 2,301 2,247 Residential 422 378 Card 13 9 MUAH 377 51 Krungsri 2,950 3,250 Other 1,922 2,084 Total ¥ 9,989 ¥ 18,052 Troubled Debt Restructurings The following table summarizes the MUFG Group’s TDRs by class for the six months ended September 30, 2021 and 2022: Six months ended September 30, 2021: Troubled Debt Restructurings Troubled Debt Restructurings that Subsequently Defaulted Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Recorded Investment (in millions) Commercial (1)(3) Domestic ¥ 94,584 ¥ 93,578 ¥ 7,048 Foreign 529 529 8,447 Residential (1)(3) 13,707 13,707 117 Card (2)(3) 11,485 10,877 1,269 MUAH (2)(3)(4) 14,233 14,243 258 Krungsri (2)(3) 8,135 8,135 2,104 Other (2) 5,104 5,104 1,641 Total ¥ 147,777 ¥ 146,173 ¥ 20,884 Six months ended September 30, 2022: Troubled Debt Restructurings Troubled Debt Restructurings that Subsequently Defaulted Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Recorded Investment (in millions) Commercial (1)(3) Domestic ¥ 37,312 ¥ 37,312 ¥ 1,830 Foreign 17,057 17,057 — Residential (1)(3) 8,697 8,697 95 Card (2)(3) 11,408 10,934 1,410 MUAH (2)(3) 8,216 8,216 — Krungsri (2)(3) 48,899 48,899 1,827 Other (2) 7,638 7,638 1,202 Total ¥ 139,227 ¥ 138,753 ¥ 6,364 Notes: (1) TDRs for the Commercial and Residential segments include accruing loans, and do not include nonaccrual loans. (2) TDRs for the Card, MUAH, Krungsri and Other segments include accrual and nonaccrual loans. (3) For the six months ended September 30, 2021, extension of the stated maturity date of loans was the primary concession type in the Commercial, Residential and Krungsri segments, reduction in the stated rate was the primary concession type in the Card segment and forbearance was the primary concession type in the MUAH segment. For the six months ended September 30, 2022, extension of the stated maturity date of loans was the primary concession type in the Commercial, Residential and Krungsri segments, reduction in the stated rate was the primary concession type in the Card segment and forbearance was the primary concession type in the MUAH segment. (4)　The above table includes the loans in transferred business of MUFG Union Bank at September 30, 2021. See Note 2 for more information. A modification of terms of a loan under a TDR mainly involves: (i) a reduction in the stated interest rate applicable to the loan, (ii) an extension of the stated maturity date of the loan, (iii) a partial forgiveness of the principal of the loan, or (iv) a combination of all of these. The amount of pre-modification outstanding recorded investment and post-modification outstanding recorded investment may differ due to write-offs made as part of the concession. The impact of write-offs associated with TDRs on the MUFG Group’s results of operations for the six months ended September 30, 2021 and 2022 was not material. TDRs 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 TDRs on the outstanding recorded investment is immaterial, and the vast majority of nonaccrual TDRs have subsequently defaulted. TDRs that subsequently defaulted 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. Also, the MUFG Group defines default as payment default for the purpose of the disclosure. In regards to the Card, MUAH, Krungsri and Other segments, the TDRs in the above tables represent nonaccrual and accruing loans, and the defaulted loans in the above table represent non-accruing and accruing loans that became past due one month or more within the Card segment, 60 days or more within the MUAH segment, and six months or more within the Krungsri segment. Historical payment defaults are one of the factors considered when projecting future cash flows in determining the allowance for credit losses for each segment. In the Krungsri segment, TDR accounting was suspended for loan modifications, where COVID-19 related short-term modifications (i.e., six months or less) were granted to loans that were current as of the loan modification date, based on interagency statements issued by the U.S. federal bank regulatory agencies. These loan modifications included payment deferrals and reductions in stated rate, and the related borrowers’ past due and nonaccrual status will not be impacted during the deferral period. Interest income will continue to be recognized over the contractual life of the loan. Credit Quality Indicator Credit quality indicators of loans and fiscal year of origination by class at March 31, 2022 and September 30, 2022 are shown below: Term Loans Revolving Revolving Total (1) At March 31, 2022: 2021 2020 2019 2018 2017 Prior (in millions) Commercial: ¥ 27,445,726 ¥ 10,850,943 ¥ 7,634,337 ¥ 6,509,048 ¥ 3,924,194 ¥ 8,827,987 ¥ 23,380,258 ¥ 9,236 ¥ 88,581,729 Domestic 19,038,698 7,937,529 5,003,439 4,499,174 2,817,819 6,639,931 8,038,871 — 53,975,461 Normal 18,756,933 7,646,272 4,669,784 4,335,640 2,698,956 6,205,070 7,686,772 — 51,999,427 Close Watch 257,276 266,311 167,387 150,834 104,047 307,367 306,193 — 1,559,415 Likely to become Bankrupt or Legally/Virtually Bankrupt 24,489 24,946 166,268 12,700 14,816 127,494 45,906 — 416,619 Foreign 8,407,028 2,913,414 2,630,898 2,009,874 1,106,375 2,188,056 15,341,387 9,236 34,606,268 Normal 8,250,729 2,814,362 2,501,594 1,881,532 1,031,105 2,031,243 15,089,995 1,912 33,602,472 Close Watch 149,502 90,355 73,253 110,170 36,274 93,622 223,203 7,324 783,703 Likely to become Bankrupt or Legally/Virtually Bankrupt 6,797 8,697 56,051 18,172 38,996 63,191 28,189 — 220,093 Residential ¥ 782,446 ¥ 641,706 ¥ 976,736 ¥ 866,282 ¥ 900,959 ¥ 9,104,691 ¥ 28,685 ¥ — ¥ 13,301,505 Accrual 782,314 641,499 976,162 865,761 900,120 9,054,326 26,460 — 13,246,642 Nonaccrual 132 207 574 521 839 50,365 2,225 — 54,863 Card ¥ 19 ¥ 106 ¥ 182 ¥ 175 ¥ 276 ¥ 437 ¥ 400,552 ¥ 62,519 ¥ 464,266 Accrual 1 8 8 9 13 41 387,648 13,960 401,688 Nonaccrual 18 98 174 166 263 396 12,904 48,559 62,578 MUAH ¥ 364,236 ¥ 306,134 ¥ 147,821 ¥ 62,455 ¥ 50,264 ¥ 122,149 ¥ 1,689,069 ¥ — ¥ 2,742,128 Credit Quality Based on Internal Credit Ratings Pass 357,334 298,658 126,083 48,653 43,938 117,778 1,642,946 — 2,635,390 Special Mention 3,106 — 20,013 2,415 5,981 805 33,471 — 65,791 Classified 3,796 7,476 1,725 11,387 345 3,566 12,652 — 40,947 Krungsri ¥ 1,350,265 ¥ 964,094 ¥ 901,955 ¥ 680,090 ¥ 329,847 ¥ 481,981 ¥ 2,099,727 ¥ 14,806 ¥ 6,822,765 Performing 1,297,054 891,374 788,828 573,840 270,783 363,905 1,961,481 — 6,147,265 Under-Performing 42,326 58,084 90,519 80,841 45,982 78,690 113,283 — 509,725 Non-Performing 10,885 14,636 22,608 25,409 13,082 39,386 24,963 14,806 165,775 Other ¥ 400,482 ¥ 143,336 ¥ 85,496 ¥ 40,445 ¥ 35,346 ¥ — ¥ 340,016 ¥ — ¥ 1,045,121 Accrual 398,744 136,317 83,278 38,609 32,934 — 328,621 — 1,018,503 Nonaccrual 1,738 7,019 2,218 1,836 2,412 — 11,395 — 26,618 Term Loans Revolving Revolving Total (1) At September 30, 2022: 2022 2021 2020 2019 2018 Prior (in millions) Commercial: ¥ 21,731,378 ¥ 14,061,406 ¥ 9,755,525 ¥ 6,866,603 ¥ 5,717,420 ¥ 11,808,586 ¥ 26,853,224 ¥ 1,792 ¥ 96,795,934 Domestic 14,196,806 7,772,035 7,284,193 4,496,355 4,032,020 8,760,989 8,354,525 — 54,896,923 Normal 14,004,153 7,610,769 7,031,429 4,325,773 3,897,211 8,287,409 8,064,659 — 53,221,403 Close Watch 176,407 144,563 224,012 139,091 125,667 342,051 261,505 — 1,413,296 Likely to become Bankrupt or Legally/Virtually Bankrupt 16,246 16,703 28,752 31,491 9,142 131,529 28,361 — 262,224 Foreign 7,534,572 6,289,371 2,471,332 2,370,248 1,685,400 3,047,597 18,498,699 1,792 41,899,011 Normal 7,362,851 6,194,146 2,375,072 2,237,446 1,580,629 2,806,341 18,251,401 1,792 40,809,678 Close Watch 156,232 81,045 79,510 62,350 81,173 138,357 213,865 — 812,532 Likely to become Bankrupt or Legally/Virtually Bankrupt 15,489 14,180 16,750 70,452 23,598 102,899 33,433 — 276,801 Residential ¥ 378,525 ¥ 764,610 ¥ 625,443 ¥ 948,207 ¥ 838,727 ¥ 9,531,992 ¥ 25,889 ¥ — ¥ 13,113,393 Accrual 378,250 764,493 625,257 947,542 838,186 9,486,011 23,820 — 13,063,559 Nonaccrual 275 117 186 665 541 45,981 2,069 — 49,834 Card ¥ 6 ¥ 69 ¥ 179 ¥ 196 ¥ 185 ¥ 651 ¥ 399,127 ¥ 65,027 ¥ 465,440 Accrual — 2 9 6 9 44 386,707 14,165 400,942 Nonaccrual 6 67 170 190 176 607 12,420 50,862 64,498 MUAH ¥ 186,266 ¥ 322,804 ¥ 249,301 ¥ 125,449 ¥ 54,403 ¥ 104,901 ¥ 1,944,273 ¥ — ¥ 2,987,397 Credit Quality Based on Internal Credit Ratings Pass 185,309 311,870 241,100 100,027 43,605 96,564 1,913,247 — 2,891,722 Special Mention 957 4,100 4,237 19,955 957 7,107 19,272 — 56,585 Classified — 6,834 3,964 5,467 9,841 1,230 11,754 — 39,090 Krungsri ¥ 1,023,497 ¥ 1,252,083 ¥ 887,601 ¥ 857,126 ¥ 640,851 ¥ 755,991 ¥ 2,537,333 ¥ 15,415 ¥ 7,969,897 Performing 962,151 1,159,818 795,463 710,639 525,345 588,907 2,375,533 — 7,117,856 Under-Performing 48,126 71,383 76,313 122,984 95,458 117,792 137,255 — 669,311 Non-Performing 13,220 20,882 15,825 23,503 20,048 49,292 24,545 15,415 182,730 Other ¥ 358,527 ¥ 268,081 ¥ 107,671 ¥ 58,442 ¥ 27,983 ¥ 23,956 ¥ 427,133 ¥ — ¥ 1,271,793 Accrual 356,954 261,290 104,026 56,766 26,530 22,585 410,887 — 1,239,038 Nonaccrual 1,573 6,791 3,645 1,676 1,453 1,371 16,246 — 32,755 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, 2022. For the Commercial, Residential and Card segments, credit quality indicators at March 31, 2022 and September 30, 2022 are based on information as of March 31, 2022 and September 30, 2022, respectively. For the MUAH, Krungsri and Other segments, credit quality indicators at March 31, 2022 and September 30, 2022 are generally based on information as of December 31, 2021 and June 30, 2022, respectively. Allowance for Credit Losses Changes in the allowance for credit losses of loans by portfolio segment for the six months ended September 30, 2021 and 2022 are shown below: Six months ended September 30, 2021: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 734,577 ¥ 82,893 ¥ 44,217 ¥ 131,755 ¥ 293,396 ¥ 61,553 ¥ 1,348,391 Provision for (reversal of) credit losses (36,415) (6,943) 7,595 (38,568) 42,836 20,657 (10,838) Charge-offs 36,033 1,399 8,704 9,459 46,405 30,040 132,040 Recoveries collected 6,360 10 691 3,335 11,741 5,593 27,730 Net charge-offs 29,673 1,389 8,013 6,124 34,664 24,447 104,310 Less: Loans in transferred business of MUFG Union Bank (1) — — — (72,098) — — (72,098) Other (2) (17) — — 7,815 (141) 2,656 10,313 Balance at end of period ¥ 668,472 ¥ 74,561 ¥ 43,799 ¥ 22,780 ¥ 301,427 ¥ 60,419 ¥ 1,171,458 Six months ended September 30, 2022: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 934,086 ¥ 69,887 ¥ 40,768 ¥ 30,365 ¥ 322,386 ¥ 73,209 ¥ 1,470,701 Provision for (reversal of) credit losses (164,085) (5,867) 10,326 4,792 39,380 17,669 (97,785) Charge-offs 130,524 110 8,867 10,083 38,792 22,991 211,367 Recoveries collected 6,096 11 431 2,270 12,028 8,989 29,825 Net charge-offs 124,428 99 8,436 7,813 26,764 14,002 181,542 Other (2) 12,307 — — 3,191 40,167 10,198 65,863 Balance at end of period ¥ 657,880 ¥ 63,921 ¥ 42,658 ¥ 30,535 ¥ 375,169 ¥ 87,074 ¥ 1,257,237 Notes: (1) Represents allowance for credit losses relating to the loans in the transferred business of MUFG Union Bank, which are included in Other assets in the condensed consolidated balance sheets at September 30, 2021. (2) Other is principally comprised of gains or losses from foreign exchange translation. The MUFG Group sold ¥850 billion and ¥1,295 billion of loans within the Commercial segment during the six months ended September 30, 2021 and 2022, respectively. The MUFG Group sold ¥519 billion and ¥337 billion of loans within the MUAH segment during the six months ended September 30, 2021 and 2022, 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. As of September 30, 2022, for the Commercial, MUAH, 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 ¥1,187,311 million and ¥1,175,813 million as of March 31, 2022 and September 30, 2022, 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 operations. The receivables relating to the credit card business included ¥5,483 million of past due receivables (1-3 months past due receivables of ¥2,581 million and greater than 3 months past due receivables of ¥2,902 million) as of March 31, 2022, and ¥6,094 million of past due receivables (1-3 months past due receivables of ¥2,990 million and greater than 3 months past due receivables of ¥3,104 million) as of September 30, 2022, respectively. 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, 2021 and 2022 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 ¥246,271 million and ¥374,222 million as of March 31, 2022 and September 30, 2022, 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, 2022
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, 2021 and 2022: Six months ended 2021 2022 (in millions) Balance at beginning of period Goodwill (1) ¥ 1,094,344 ¥ 1,118,889 Accumulated impairment losses (1) (723,492) (723,492) Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank (2) — (91,786) 370,852 303,611 Foreign currency translation adjustments and other 19,329 54,093 Balance at end of period Goodwill 1,113,673 1,172,982 Accumulated impairment losses (723,492) (723,492) Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank (2) ¥ (90,123) ¥ (108,468) ¥ 300,058 ¥ 341,022 Notes: (1) Goodwill originally recognized of ¥1,900,019 million, which has been fully impaired before April 1, 2021, is not included in the table above. (2) Represents goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank, which is included in Other assets in the condensed consolidated balance sheets at September 30, 2021, March 31, 2022 and September 30, 2022, respectively. See Note 2 for more information. Other Intangible Assets The table below presents the net carrying amount by major class of other intangible assets at March 31, 2022 and September 30, 2022: March 31, September 30, (in millions) Intangible assets subject to amortization: Software ¥ 788,471 ¥ 822,524 Customer relationships 246,645 260,478 Core deposit intangibles 55,087 57,587 Trade names 40,012 41,807 Other 10,335 11,880 Total 1,140,550 1,194,276 Intangible assets not subject to amortization: Other 8,051 8,089 Total ¥ 1,148,601 ¥ 1,202,365

Lease Transactions

Lease Transactions	6 Months Ended
	Sep. 30, 2022
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, 2021 and September 30, 2022: September 30, September 30, (in millions) Sales type and direct financing leases: Finance income on net investment ¥ 59,369 ¥ 61,812 Operating leases: Lease income 1,843 1,799 Total ¥ 61,212 ¥ 63,611 Finance income on net investment is included in Interest income—Loans, including fees in the condensed consolidated statements of operations. Lease income from operating lease transactions is included in Other non-interest income in the condensed consolidated statements of operations.

Pledged Assets and Collateral

Pledged Assets and Collateral	6 Months Ended
	Sep. 30, 2022
Financial Instruments Pledged as Collateral [Abstract]
Pledged Assets and Collateral	PLEDGED ASSETS AND COLLATERAL At September 30, 2022, assets mortgaged, pledged, or otherwise subject to lien were as follows: September 30, 2022 (in millions) Trading account securities ¥ 10,660,801 Investment securities 21,525,456 Loans 13,533,656 Other 251,462 Total ¥ 45,971,375 The above pledged assets were classified by type of liabilities to which they related as follows: September 30, 2022 (in millions) Deposits ¥ 243,462 Payables under repurchase agreements and securities lending transactions 24,518,082 Other short-term borrowings and long-term debt 21,131,555 Other 78,276 Total ¥ 45,971,375 At September 30, 2022, certain investment securities, principally Japanese national government and Japanese government agency bonds, loans and other assets with a combined carrying value of ¥24,148,629 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, 2022 and September 30, 2022, the cash collateral pledged for derivative transactions, which is included in Other assets, was ¥2,893,178 million and ¥3,406,298 million, respectively, and the cash collateral received for derivative transactions, which is included in Other liabilities, was ¥1,017,580 million and ¥2,198,569 million, respectively.

Severance Indemnities and Pensi

Severance Indemnities and Pension Plans	6 Months Ended
	Sep. 30, 2022
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, 2021 and 2022: Six months ended September 30, Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 Pension benefits and SIPs Pension benefits and SIPs Pension benefits Other benefits Pension benefits Other benefits (in millions) Service cost—benefits earned during the period ¥ 22,196 ¥ 20,580 ¥ 9,276 ¥ 100 ¥ 8,281 ¥ 56 Interest cost on projected benefit obligation 6,081 7,131 5,575 264 7,667 340 Expected return on plan assets (41,132) (42,328) (16,254) (1,182) (18,381) (1,338) Amortization of net actuarial loss (gain) 137 346 3,215 73 3,896 (77) Amortization of prior service cost (629) (650) (1,343) (189) (1,607) (212) Gain on settlements and curtailment (2,632) (2,121) — — — — Net periodic benefit cost (income) ¥ (15,979) ¥ (17,042) ¥ 469 ¥ (934) ¥ (144) ¥ (1,231)

Offsetting of Derivatives, Repu

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions	6 Months Ended
	Sep. 30, 2022
Offsetting [Abstract]
Offsetting of Derivatives Repurchase Agreements and Securities Lending Disclosure	OFFSETTING OF DERIVATIVES, REPURCHASE AGREEMENTS, AND SECURITIES LENDING TRANSACTIONSThe following tables present, as of March 31, 2022 and September 30, 2022, 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 (1) Gross amounts not offset in the condensed consolidated balance sheet Net amounts At March 31, 2022: Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 10,611 ¥ — ¥ 10,611 ¥ (7,032) ¥ (620) ¥ 2,959 Receivables under resale agreements 14,527 (2,024) 12,503 (11,614) (29) 860 Receivables under securities borrowing transactions 4,571 (75) 4,496 (4,367) — 129 Total ¥ 29,709 ¥ (2,099) ¥ 27,610 ¥ (23,013) ¥ (649) ¥ 3,948 Financial liabilities: Derivative liabilities ¥ 10,948 ¥ — ¥ 10,948 ¥ (6,749) ¥ (2,225) ¥ 1,974 Payables under repurchase agreements 29,717 (1,991) 27,726 (26,115) (85) 1,526 Payables under securities lending transactions 1,097 (75) 1,022 (990) (5) 27 Obligations to return securities received as collateral 6,826 — 6,826 (1,864) — 4,962 Total ¥ 48,588 ¥ (2,066) ¥ 46,522 ¥ (35,718) ¥ (2,315) ¥ 8,489 Gross Gross amounts offset in the condensed consolidated balance sheet Net amounts presented in the condensed consolidated balance sheet (1) Gross amounts not offset in the condensed consolidated balance sheet Net amounts At September 30, 2022: Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 16,614 ¥ — ¥ 16,614 ¥ (11,671) ¥ (1,633) ¥ 3,310 Receivables under resale agreements 15,660 (2,276) 13,384 (12,687) (36) 661 Receivables under securities borrowing transactions 4,576 (89) 4,487 (4,397) — 90 Total ¥ 36,850 ¥ (2,365) ¥ 34,485 ¥ (28,755) ¥ (1,669) ¥ 4,061 Financial liabilities: Derivative liabilities ¥ 17,646 ¥ — ¥ 17,646 ¥ (11,070) ¥ (2,586) ¥ 3,990 Payables under repurchase agreements 36,876 (2,238) 34,638 (33,635) (55) 948 Payables under securities lending transactions 991 (89) 902 (879) (7) 16 Obligations to return securities received as collateral 6,752 — 6,752 (1,736) — 5,016 Total ¥ 62,265 ¥ (2,327) ¥ 59,938 ¥ (47,320) ¥ (2,648) ¥ 9,970 Note: (1) Net amounts in the above table includes those relating to Financial assets and liabilities of transferred business of MUFG Union Bank. See Note 2 for more information.

Repurchase Agreements and Secur

Repurchase Agreements and Securities Lending Transactions Accounted for as Secured Borrowings	6 Months Ended
	Sep. 30, 2022
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, 2022 and September 30, 2022. 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, 2022 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 6,703 ¥ 17,050 ¥ 3,934 ¥ 2,030 ¥ 29,717 Payables under securities lending transactions 972 95 29 1 1,097 Obligations to return securities received as collateral 5,782 450 437 157 6,826 Total ¥ 13,457 ¥ 17,595 ¥ 4,400 ¥ 2,188 ¥ 37,640 September 30, 2022 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 9,188 ¥ 18,047 ¥ 6,319 ¥ 3,322 ¥ 36,876 Payables under securities lending transactions 889 24 7 71 991 Obligations to return securities received as collateral 6,056 386 69 241 6,752 Total ¥ 16,133 ¥ 18,457 ¥ 6,395 ¥ 3,634 ¥ 44,619 Secured borrowing by the class of collateral pledged at March 31, 2022 and September 30, 2022 was as follows: March 31, 2022 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 ¥ 7,486 ¥ 359 ¥ 4,199 ¥ 12,044 Foreign government and official institution bonds 14,116 11 1,017 15,144 Corporate bonds 745 68 330 1,143 Residential mortgage-backed securities 6,720 1 — 6,721 Other debt securities 276 — 2 278 Marketable equity securities 360 641 1,278 2,279 Other 14 17 — 31 Total ¥ 29,717 ¥ 1,097 ¥ 6,826 ¥ 37,640 September 30, 2022 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 ¥ 14,908 ¥ 314 ¥ 3,500 ¥ 18,722 Foreign government and official institution bonds 11,639 18 1,394 13,051 Corporate bonds 876 75 418 1,369 Residential mortgage-backed securities 8,497 — 4 8,501 Other debt securities 390 — 72 462 Marketable equity securities 304 559 1,364 2,227 Other 262 25 — 287 Total ¥ 36,876 ¥ 991 ¥ 6,752 ¥ 44,619

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Sep. 30, 2022
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 (loss) ("Accumulated OCI"), net of tax and net of noncontrolling interests, for the six months ended September 30, 2021 and 2022: Six months ended 2021 2022 (in millions) Accumulated other comprehensive income (loss), net of taxes: Net unrealized losses on investment securities: Balance at beginning of period ¥ (383,004) ¥ (674,230) Net change during the period (28,028) (218,267) Balance at end of period ¥ (411,032) ¥ (892,497) Net debt valuation adjustments: Balance at beginning of period ¥ (37,862) ¥ (14,538) Net change during the period 5,965 45,485 Balance at end of period ¥ (31,897) ¥ 30,947 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Balance at beginning of period ¥ 19,029 ¥ 5,969 Net change during the period (5,750) (21,686) Balance at end of period ¥ 13,279 ¥ (15,717) Defined benefit plans: Balance at beginning of period ¥ (20,382) ¥ 29,124 Net change during the period (9,681) (16,948) Balance at end of period ¥ (30,063) ¥ 12,176 Foreign currency translation adjustments: Balance at beginning of period ¥ 132,738 ¥ 880,708 Net change during the period 245,484 1,409,554 Balance at end of period ¥ 378,222 ¥ 2,290,262 Balance at end of period ¥ (81,491) ¥ 1,425,171 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, 2021 and 2022: Six months ended September 30, 2021 2022 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 ¥ 19,768 ¥ (3,871) ¥ 15,897 ¥ (534,655) ¥ 132,963 ¥ (401,692) Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests (43,792) 13,390 (30,402) 296,064 (88,081) 207,983 Net change (24,024) 9,519 (14,505) (238,591) 44,882 (193,709) Net unrealized gains on investment securities attributable to noncontrolling interests 13,523 24,558 Net unrealized losses on investment securities attributable to Mitsubishi UFJ Financial Group (28,028) (218,267) Net debt valuation adjustments: Net debt valuation adjustments 8,270 (2,533) 5,737 65,470 (20,047) 45,423 Reclassification adjustment for losses included in net income (loss) before attribution of noncontrolling interests 329 (101) 228 89 (27) 62 Net change 8,599 (2,634) 5,965 65,559 (20,074) 45,485 Net debt valuation adjustments attributable to noncontrolling interests — — Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group 5,965 45,485 Net unrealized losses on derivatives qualifying for cash flow hedges: Net unrealized losses on derivatives qualifying for cash flow hedges (1,034) 515 (519) (22,892) 6,571 (16,321) Reclassification adjustment for gains included in net income (loss) before attribution of noncontrolling interests (6,748) 1,691 (5,057) (6,701) 1,662 (5,039) Net change (7,782) 2,206 (5,576) (29,593) 8,233 (21,360) Net unrealized gains on derivatives qualifying for cash flow hedges attributable to noncontrolling interests 174 326 Net unrealized losses on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group (5,750) (21,686) Defined benefit plans: Defined benefit plans (12,034) 3,385 (8,649) (23,354) 6,682 (16,672) Reclassification adjustment for gains included in net income (loss) before attribution of noncontrolling interests (1,442) 798 (644) (443) 250 (193) Net change (13,476) 4,183 (9,293) (23,797) 6,932 (16,865) Defined benefit plans attributable to noncontrolling interests 388 83 Defined benefit plans attributable to Mitsubishi UFJ Financial Group (9,681) (16,948) Foreign currency translation adjustments: Foreign currency translation adjustments 262,860 (13,271) 249,589 1,654,830 (196,704) 1,458,126 Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests 1,462 (448) 1,014 (12,257) 3,753 (8,504) Net change 264,322 (13,719) 250,603 1,642,573 (192,951) 1,449,622 Foreign currency translation adjustments attributable to noncontrolling interests 5,119 40,068 Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group 245,484 1,409,554 Other comprehensive income attributable to Mitsubishi UFJ Financial Group ¥ 207,990 ¥ 1,198,138 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 operations for the six months ended September 30, 2021 and 2022: Six months ended 2021 2022 Details of Accumulated OCI components Amount reclassified out of Accumulated OCI Line items in the consolidated statements of operations (in millions) Net unrealized losses (gains) on investment securities Net gains on sales and redemptions of Available-for-sale debt securities ¥ (43,692) ¥ (9,738) Investment securities gains (losses)—net Impairment losses on investment securities — 299,281 Investment securities gains (losses)—net Other (100) 6,521 (43,792) 296,064 Total before tax 13,390 (88,081) Income tax expense (benefit) ¥ (30,402) ¥ 207,983 Net of tax Net debt valuation adjustments ¥ 329 ¥ 89 Equity in earnings of equity method investees—net 329 89 Total before tax (101) (27) Income tax expense (benefit) ¥ 228 ¥ 62 Net of tax Net unrealized losses (gains) on derivatives qualifying for cash flow hedges Interest rate contracts ¥ (5,589) ¥ (5,173) Interest income on Loans, including fees Foreign exchange contracts (1,159) (1,528) Interest expense on Long-term debt or Foreign exchange gains (losses)—net (6,748) (6,701) Total before tax 1,691 1,662 Income tax expense (benefit) ¥ (5,057) ¥ (5,039) Net of tax Defined benefit plans Net actuarial loss (1) ¥ 3,425 ¥ 4,165 Other non-interest expenses Prior service cost (1) (2,161) (2,469) Other non-interest expenses Gain on settlements and curtailment, and other (1) (2,706) (2,139) Other non-interest expenses (1,442) (443) Total before tax 798 250 Income tax expense (benefit) ¥ (644) ¥ (193) Net of tax Foreign currency translation adjustments ¥ 1,462 ¥ (12,257) Other non-interest income 1,462 (12,257) Total before tax (448) 3,753 Income tax expense (benefit) ¥ 1,014 ¥ (8,504) Net of tax Total reclassifications for the period ¥ (50,191) ¥ 276,752 Total before tax 15,330 (82,443) Income tax expense (benefit) ¥ (34,861) ¥ 194,309 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, 2022
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, 2022 for a further discussion of the MUFG Group’s use of derivative instruments. During the six months ended September 30, 2022, 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, 2022 and September 30, 2022: Notional amounts (1) March 31, September 30, 2022 (in trillions) Interest rate contracts ¥ 1,391.8 ¥ 1,595.8 Foreign exchange contracts 245.0 291.3 Equity contracts 7.4 6.7 Commodity contracts 0.1 0.1 Credit derivatives 9.8 11.4 Other 3.2 3.6 Total ¥ 1,657.3 ¥ 1,908.9 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, 2022 and September 30, 2022: Fair value of derivative instruments March 31, 2022 (1)(5) September 30, 2022 (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 ¥ 5,445 ¥ — ¥ 5,445 ¥ 7,164 ¥ — ¥ 7,164 Foreign exchange contracts 4,801 2 4,803 9,053 6 9,059 Equity contracts 151 — 151 203 — 203 Commodity contracts 22 — 22 18 — 18 Credit derivatives 103 — 103 85 — 85 Other (6) 10 — 10 — — — Total derivative assets ¥ 10,532 ¥ 2 ¥ 10,534 ¥ 16,523 ¥ 6 ¥ 16,529 Derivative liabilities: Interest rate contracts ¥ 5,652 ¥ — ¥ 5,652 ¥ 8,372 ¥ — ¥ 8,372 Foreign exchange contracts 4,907 1 4,908 8,924 — 8,924 Equity contracts 277 — 277 207 — 207 Commodity contracts 22 — 22 18 — 18 Credit derivatives 101 — 101 105 — 105 Other (6) (65) — (65) (111) — (111) Total derivative liabilities ¥ 10,894 ¥ 1 ¥ 10,895 ¥ 17,515 ¥ — ¥ 17,515 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) 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 except for (6). (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, 2022. (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 Operations The following table provides more detailed information regarding the derivative-related impact on the accompanying condensed consolidated statements of operations for the six months ended September 30, 2021 and 2022: 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, 2021: Interest rate contracts ¥ — ¥ 25 ¥ 25 Foreign exchange contracts — — — Equity contracts — (115) (115) Credit derivatives — (35) (35) Other (1) (7) (22) (29) Total ¥ (7) ¥ (147) ¥ (154) Six months ended September 30, 2022: Interest rate contracts ¥ — ¥ 64 ¥ 64 Foreign exchange contracts (168) — (168) Equity contracts — (24) (24) Credit derivatives — (2) (2) Other (1) (8) 23 15 Total ¥ (176) ¥ 61 ¥ (115) 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, 2022 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, 2022 and September 30, 2022: Protection sold Maximum potential/Notional amount by expiration period Fair value At March 31, 2022: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 408,281 ¥ 1,874,796 ¥ 731,946 ¥ 3,015,023 ¥ (61,308) Non-investment grade 91,161 349,847 66,452 507,460 5,378 Total 499,442 2,224,643 798,398 3,522,483 (55,930) Index and basket credit default swaps : Investment grade (2) 67,600 458,153 36,955 562,708 (9,604) Non-investment grade 56,299 19,936 — 76,235 (61) Not rated 19,944 279,955 886 300,785 (7,320) Total 143,843 758,044 37,841 939,728 (16,985) Total credit default swaps sold ¥ 643,285 ¥ 2,982,687 ¥ 836,239 ¥ 4,462,211 ¥ (72,915) Protection sold Maximum potential/Notional amount by expiration period Fair value At September 30, 2022: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 628,647 ¥ 2,138,484 ¥ 638,776 ¥ 3,405,907 ¥ (3,703) Non-investment grade 140,373 332,690 59,078 532,141 19,902 Total 769,020 2,471,174 697,854 3,938,048 16,199 Index and basket credit default swaps : Investment grade (2) 65,949 754,856 10,937 831,742 (2,181) Non-investment grade 50,684 — — 50,684 (79) Not rated 7,548 352,015 1,637 361,200 3,682 Total 124,181 1,106,871 12,574 1,243,626 1,422 Total credit default swaps sold ¥ 893,201 ¥ 3,578,045 ¥ 710,428 ¥ 5,181,674 ¥ 17,621 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 ¥70 billion and ¥4,083 billion, respectively, at March 31, 2022, and approximately ¥16 billion and ¥4,614 billion, respectively, at September 30, 2022. 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, 2022 and September 30, 2022 was approximately ¥0.5 trillion and ¥1.2 trillion, respectively, for which the MUFG Group

Obligations Under Guarantees an

Obligations Under Guarantees and Other Off-balance Sheet Instruments	6 Months Ended
	Sep. 30, 2022
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, 2022. The table below presents the contractual or notional amounts of such guarantees at March 31, 2022 and September 30, 2022: March 31, September 30, 2022 (in billions) Standby letters of credit and financial guarantees ¥ 4,731 ¥ 5,333 Performance guarantees 3,828 4,341 Derivative instruments (1)(2) 39,982 42,782 Liabilities of trust accounts 12,262 14,842 Other 71 103 Total ¥ 60,874 ¥ 67,401 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, 2022 and September 30, 2022. 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, 2022: 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 ¥ 4,731 ¥ 4,575 ¥ 121 ¥ 31 ¥ 4 Performance guarantees 3,828 3,706 73 22 27 Total ¥ 8,559 ¥ 8,281 ¥ 194 ¥ 53 ¥ 31 At September 30, 2022: 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 ¥ 5,333 ¥ 5,186 ¥ 129 ¥ 17 ¥ 1 Performance guarantees 4,341 4,219 63 25 34 Total ¥ 9,674 ¥ 9,405 ¥ 192 ¥ 42 ¥ 35 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, 2022. 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, 2022. 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, 2022. The table below presents the contractual amounts with regard to such instruments at March 31, 2022 and September 30, 2022: March 31, September 30, 2022 (in billions) Commitments to extend credit ¥ 82,886 ¥ 87,999 Commercial letters of credit 908 1,088 Commitments to make investments 478 628

Contingent Liabilities

Contingent Liabilities	6 Months Ended
	Sep. 30, 2022
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 ¥21,120 and ¥16,060 million as of March 31, 2022 and September 30, 2022, respectively. Provision (reversal) related to the allowance for the six months ended September 30, 2021 and 2022 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, 2022
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, 2022 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, 2022 and September 30, 2022: Consolidated VIEs Consolidated assets At March 31, 2022: 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 ¥ 6,115,286 ¥ 114,679 ¥ 24,959 ¥ 30,114 ¥ 906,109 ¥ 5,016,254 ¥ 23,171 Investment funds 538,336 578 28,021 351,806 55,567 — 102,364 Special purpose entities created for structured financing 192,200 1,694 5,463 7,294 — 119,002 58,747 Repackaged instruments 342,771 4,798 — 134,387 111,711 88,209 3,666 Securitization of the MUFG Group’s assets 10,544,934 — 1,204 — — 10,526,124 17,606 Trust arrangements 8,581,448 — — 760,960 1,303,063 6,517,421 4 Other 67,650 465 3,910 22,110 15,684 3,496 21,985 Total consolidated assets before elimination 26,382,625 122,214 63,557 1,306,671 2,392,134 22,270,506 227,543 The amounts eliminated in consolidation (7,424,058) (115,486) (36,175) (54,363) (567,242) (6,619,044) (31,748) Total consolidated assets ¥ 18,958,567 ¥ 6,728 ¥ 27,382 ¥ 1,252,308 ¥ 1,824,892 ¥ 15,651,462 ¥ 195,795 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other liabilities (in millions) Asset-backed conduits ¥ 6,091,830 ¥ — ¥ 4,443,656 ¥ 1,337,938 ¥ 310,236 Investment funds 29,368 — — 6,497 22,871 Special purpose entities created for structured financing 101,814 — — 95,218 6,596 Repackaged instruments 345,606 — 22,791 248,535 74,280 Securitization of the MUFG Group’s assets 10,569,281 — — 10,102,964 466,317 Trust arrangements 8,581,731 7,063,850 683,346 — 834,535 Other 63,126 — 2,268 39,511 21,347 Total consolidated liabilities before elimination 25,782,756 7,063,850 5,152,061 11,830,663 1,736,182 The amounts eliminated in consolidation (15,116,977) (756) (2,590,224) (11,378,021) (1,147,976) The amount of liabilities with recourse to the general credit of the MUFG Group (10,081,747) (7,063,094) (2,522,255) (3,411) (492,987) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 584,032 ¥ — ¥ 39,582 ¥ 449,231 ¥ 95,219 Consolidated VIEs Consolidated assets At September 30, 2022: 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 ¥ 6,776,160 ¥ 56,072 ¥ 28,793 ¥ 123,767 ¥ 975,073 ¥ 5,470,418 ¥ 122,037 Investment funds 519,063 336 20,911 357,653 57,370 — 82,793 Special purpose entities created for structured financing 234,811 2,013 2,222 8,532 — 140,410 81,634 Repackaged instruments 387,076 14,334 — 163,928 160,751 47,219 844 Securitization of the MUFG Group’s assets 11,077,555 — 1,203 — — 11,058,713 17,639 Trust arrangements 7,102,194 — — 872,829 1,419,479 4,809,882 4 Other 57,420 492 3,726 14,606 15,544 3,193 19,859 Total consolidated assets before elimination 26,154,279 73,247 56,855 1,541,315 2,628,217 21,529,835 324,810 The amounts eliminated in consolidation (5,844,960) (56,517) (29,019) (143,087) (663,066) (4,924,590) (28,681) Total consolidated assets ¥ 20,309,319 ¥ 16,730 ¥ 27,836 ¥ 1,398,228 ¥ 1,965,151 ¥ 16,605,245 ¥ 296,129 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other (in millions) Asset-backed conduits ¥ 6,690,554 ¥ — ¥ 5,028,735 ¥ 1,313,354 ¥ 348,465 Investment funds 7,436 — — 7,293 143 Special purpose entities created for structured financing 117,495 — — 113,236 4,259 Repackaged instruments 391,007 — 18,154 267,440 105,413 Securitization of the MUFG Group’s assets 11,101,594 — — 10,604,347 497,247 Trust arrangements 7,102,377 5,449,185 702,270 — 950,922 Other 53,122 — 1,883 31,961 19,278 Total consolidated liabilities before elimination 25,463,585 5,449,185 5,751,042 12,337,631 1,925,727 The amounts eliminated in consolidation (15,850,216) (2,966) (2,647,997) (11,905,225) (1,294,028) The amount of liabilities with recourse to the general credit of the MUFG Group (9,097,535) (5,446,219) (3,063,374) (29,752) (558,190) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 515,834 ¥ — ¥ 39,671 ¥ 402,654 ¥ 73,509 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, 2022 and September 30, 2022: Non-consolidated VIEs On-balance sheet assets On-balance sheet liabilities At March 31, 2022: Total assets Maximum exposure Total Trading account assets Investment securities Loans All other assets Total All other liabilities (in millions) Asset-backed conduits ¥ 27,325,711 ¥ 6,010,143 ¥ 4,858,210 ¥ — ¥ 1,756,122 ¥ 3,102,088 ¥ — ¥ 520 ¥ 520 Investment funds 112,262,392 3,352,266 2,622,407 328,963 622,967 1,628,737 41,740 4,507 4,507 Special purpose entities created for structured financing 42,312,881 4,829,867 3,275,008 234,384 20,854 3,012,252 7,518 25,424 25,424 Repackaged instruments 7,533,839 3,627,418 3,448,224 563,524 2,424,602 373,834 86,264 1,590 1,590 Other 74,119,635 3,474,163 2,402,341 170,859 7,552 2,139,751 84,179 28,128 28,128 Total ¥ 263,554,458 ¥ 21,293,857 ¥ 16,606,190 ¥ 1,297,730 ¥ 4,832,097 ¥ 10,256,662 ¥ 219,701 ¥ 60,169 ¥ 60,169 Non-consolidated VIEs On-balance sheet assets On-balance sheet liabilities At September 30, 2022: Total assets Maximum exposure Total Trading account assets Investment securities Loans All other Total All other liabilities (in millions) Asset-backed conduits ¥ 33,736,781 ¥ 7,289,764 ¥ 5,722,762 ¥ — ¥ 1,957,516 ¥ 3,765,246 ¥ — ¥ 3,928 ¥ 3,928 Investment funds 64,892,164 4,219,171 3,233,231 236,890 729,707 2,221,423 45,211 9,768 9,768 Special purpose entities created for structured financing 58,613,172 5,906,736 3,896,609 127,189 27,561 3,725,604 16,255 158,234 158,234 Repackaged instruments 9,383,684 4,574,788 4,256,915 950,867 2,724,026 472,931 109,091 5,225 5,225 Other 94,968,843 4,122,095 2,708,089 198,042 7,552 2,408,324 94,171 56,249 56,249 Total ¥ 261,594,644 ¥ 26,112,554 ¥ 19,817,606 ¥ 1,512,988 ¥ 5,446,362 ¥ 12,593,528 ¥ 264,728 ¥ 233,404 ¥ 233,404 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, 2022
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, 2021 and 2022 are as follows: 2021 2022 (in millions) Fees and commissions on deposits ¥ 25,847 ¥ 27,784 Fees and commissions on remittances and transfers 83,029 73,627 Fees and commissions on foreign trading business 33,903 35,165 Fees and commissions on credit card business 99,738 111,697 Fees and commissions on security-related services 132,161 107,541 Fees and commissions on administration and management services for investment funds 145,660 133,070 Trust fees 66,120 66,832 Guarantee fees (1) 22,431 23,481 Insurance commissions 20,763 22,259 Fees and commissions on real estate business 20,392 21,984 Other fees and commissions (2) 148,021 164,202 Total ¥ 798,065 ¥ 787,642 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 accounting principles generally accepted in Japan 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 Digital Service Business Group (“DS”) 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 DS, Retail & Commercial Banking Business Group (“R&C”), Japanese Corporate Investment Banking Business Group (“JCIB”), Global Corporate Investment Banking Business Group (“GCIB”), and GCB with no significant concentration in any particular segments. The business activities relevant to fees and commissions on foreign trading business are attributable to DS, R&C, JCIB, GCIB, and GCB with no significant concentration in any particular segments. The business activities relevant to fees and commissions on credit card business are substantially attributable to DS. The majority of fees and commissions on security-related services are from the business activities relevant to R&C, 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 R&C, JCIB, and AM/IS with no significant concentration in any particular segments. The majority of insurance commissions are from the business activities relevant to DS, R&C, JCIB, 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 R&C and JCIB with no significant concentration in any particular segments.

Business Segments

Business Segments	6 Months Ended
	Sep. 30, 2022
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 accounting principles generally accepted in Japan 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 do 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 has allocated reasonably allocable fixed assets of MUFG Bank on a stand-alone basis and Mitsubishi UFJ Trust and Banking on a standalone basis to each business unit of such subsidiaries starting from March 31, 2022. 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.—Digital Service, Retail & Commercial Banking, 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: Digital Service Business Group —Covers digital-based non-face-to-face businesses servicing "mass-segment" customers, or retail customers and small and medium-sized enterprise customers, of Mitsubishi UFJ NICOS, other consumer financing companies, and MUFG Bank in Japan. Retail & Commercial Banking Business Group —Covers the domestic retail and commercial banking businesses. This business group mainly offers retail customers (with a strategic focus on high net-worth individuals) and small and medium-sized enterprise customers in Japan 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 MUFG Union Bank, Krungsri and PT Bank Danamon Indonesia, Tbk. 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 offer 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, 2022, including reallocation of au Kabucom Securities Co., Ltd., an internet securities subsidiary, to the Digital Service Business Group from the Retail & Commercial Banking Business Group as well as updates to internal booking rules relating to certain net fees and other net revenue in the customer business groups and corresponding adjustments in Other. There was no impact on Asset Management & Investor Services Business Group. These modifications had the following impact on its previously reported business segment information for the six months ended September 30, 2021: • increasing the operating profits of the Digital Service Business Group, the Global Corporate & Investment Banking Business Group, the Global Commercial Banking Business Group and the Japanese Corporate & Investment Banking Business Group by ¥5.8 billion, ¥2.6 billion, ¥0.6 billion and ¥0.5 billion respectively, and • reducing the operating profits of the Retail & Commercial Banking Business Group, Other and the Global Markets Business Group by ¥6.0 billion, ¥1.9 billion and ¥1.4 billion, respectively. Prior period business segment information has been restated to enable comparison between the relevant amounts for six months ended September 30, 2021 and 2022. Customer Business Digital Retail & Japanese Global Asset Global Total Global Other Total (in billions) Six months ended September 30, 2021: Net revenue: ¥ 372.4 ¥ 279.2 ¥ 265.8 ¥ 374.1 ¥ 176.0 ¥ 235.7 ¥ 1,703.2 ¥ 280.8 ¥ 23.0 ¥ 2,007.0 BK and TB (1) : 132.4 181.8 206.4 0.9 52.7 155.9 730.1 192.1 72.4 994.6 Net interest income 111.7 82.5 97.2 0.9 4.1 74.2 370.6 127.6 84.1 582.3 Net fees 19.3 89.8 87.2 — 48.5 74.3 319.1 (3.6) (22.9) 292.6 Other 1.4 9.5 22.0 — 0.1 7.4 40.4 68.1 11.2 119.7 Other than BK and TB 240.0 97.4 59.4 373.2 123.3 79.8 973.1 88.7 (49.4) 1,012.4 Operating expenses 278.3 245.5 156.9 263.9 118.3 140.8 1,203.7 119.6 49.4 1,372.7 Operating profit (loss) ¥ 94.1 ¥ 33.7 ¥ 108.9 ¥ 110.2 ¥ 57.7 ¥ 94.9 ¥ 499.5 ¥ 161.2 ¥ (26.4) ¥ 634.3 Six months ended September 30, 2022: Net revenue: ¥ 371.1 ¥ 281.9 ¥ 346.1 ¥ 447.4 ¥ 177.2 ¥ 345.2 ¥ 1,968.9 ¥ 360.6 ¥ 15.4 ¥ 2,344.9 BK and TB (1) : 126.6 192.7 278.5 27.3 53.0 247.2 925.3 225.6 25.2 1,176.1 Net interest income 107.7 90.5 153.1 27.3 5.3 114.2 498.1 580.5 81.4 1,160.0 Net fees 17.6 87.5 92.4 — 47.8 114.2 359.5 (8.6) (30.0) 320.9 Other 1.3 14.7 33.0 — (0.1) 18.8 67.7 (346.3) (26.2) (304.8) Other than BK and TB 244.5 89.2 67.6 420.1 124.2 98.0 1,043.6 135.0 (9.8) 1,168.8 Operating expenses 261.9 226.5 166.0 305.0 123.4 168.4 1,251.2 135.3 68.8 1,455.3 Operating profit (loss) ¥ 109.2 ¥ 55.4 ¥ 180.1 ¥ 142.4 ¥ 53.8 ¥ 176.8 ¥ 717.7 ¥ 225.3 ¥ (53.4) ¥ 889.6 Fixed assets (2) ¥ 147.5 ¥ 199.1 ¥ 157.1 ¥ 1.2 ¥ 13.7 ¥ 134.5 ¥ 653.1 ¥ 108.7 ¥ 541.5 ¥ 1,303.3 Increase in fixed assets (3) ¥ 15.2 ¥ 21.0 ¥ 17.7 ¥ 0.4 ¥ 3.2 ¥ 9.7 ¥ 67.2 ¥ 10.4 ¥ 9.6 ¥ 87.2 Depreciation (3) ¥ 5.1 ¥ 11.0 ¥ 18.0 ¥ 0.1 ¥ 2.8 ¥ 15.5 ¥ 52.5 ¥ 13.3 ¥ 8.8 ¥ 74.6 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 it corresponds to the U.S. GAAP amounts of 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 ¥1,422.4 billion are not allocated to each business segment when determining the allocation of management resources and assessing performance, therefore such amounts are not included in the table above. (3) These amounts are related to BK and TB. 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 operations. 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 operations. A reconciliation of operating profit and fixed assets under the internal management reporting system for the six months ended September 30, 2021 and 2022 above to income before income tax expense shown in the accompanying condensed consolidated statements of operations and the total amount of premises and equipment-net, intangible assets-net and goodwill are as follows: Six months ended 2021 2022 (in billions) Operating profit: ¥ 634 ¥ 890 Reversal of credit losses 11 98 Foreign exchange losses—net (46) (165) Trading account profits (losses) —net 4 (1,670) Equity investment securities gains (losses)—net 289 (433) Debt investment securities gains (losses)—net (24) 199 Equity in earnings of equity method investees—net 216 187 Reversal of off-balance sheet credit instruments 6 12 Reversal of impairment of assets held for sale — 134 Loss on valuation adjustment for loans held for sale — (209) Other—net (39) (335) Income (loss) before income tax expense (benefit) ¥ 1,051 ¥ (1,292) Fixed assets: ¥ — ¥ 1,303 U.S. GAAP adjustments and other — 1,088 Premises and equipment-net, Intangible assets-net and Goodwill ¥ — ¥ 2,391

Fair Value

Fair Value	6 Months Ended
	Sep. 30, 2022
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, 2022. During the six months ended September 30, 2022, 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, 2022 and September 30, 2022: At March 31, 2022 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 17,170,976 ¥ 13,998,654 ¥ 797,997 ¥ 31,967,627 Debt securities Japanese national government and Japanese government agency bonds 7,927,707 344,034 — 8,271,741 Japanese prefectural and municipal bonds — 132,097 — 132,097 Foreign government and official institution bonds 7,606,345 471,163 1,711 8,079,219 Corporate bonds 3,198 2,664,869 683 2,668,750 Residential mortgage-backed securities — 6,792,386 — 6,792,386 Commercial mortgage-backed securities — 7,402 — 7,402 Asset-backed securities — 1,210,875 315,231 1,526,106 Other debt securities — — 313,166 313,166 Commercial paper — 1,271,921 — 1,271,921 Equity securities (2) 1,633,726 1,103,907 167,206 2,904,839 Trading derivative assets 201,860 10,204,531 115,040 10,521,431 Interest rate contracts 121,584 5,268,790 54,309 5,444,683 Foreign exchange contracts 2,514 4,788,739 9,560 4,800,813 Equity contracts 77,762 47,207 25,979 150,948 Commodity contracts — 88 21,984 22,072 Credit derivatives — 99,707 2,808 102,515 Other (7) — — 400 400 Investment securities: Available-for-sale debt securities 32,672,696 12,912,810 212,936 45,798,442 Japanese national government and Japanese government agency bonds 30,989,319 3,338,445 — 34,327,764 Japanese prefectural and municipal bonds — 4,146,144 — 4,146,144 Foreign government and official institution bonds 1,683,377 936,076 11,890 2,631,343 Corporate bonds — 1,087,059 3,089 1,090,148 Residential mortgage-backed securities — 900,392 15 900,407 Asset-backed securities — 1,464,041 124,379 1,588,420 Other debt securities — 30,016 73,563 103,579 Commercial paper — 1,010,637 — 1,010,637 Equity securities 4,834,102 152,041 55,883 5,042,026 Marketable equity securities 4,834,102 152,041 — 4,986,143 Nonmarketable equity securities (3) — — 55,883 55,883 Other (4) 1,434,046 38,574 4,912 1,477,532 Assets held for sale 421,450 2,791,372 78,521 3,291,343 Investment securities 409,618 2,713,377 65,262 3,188,257 Other 11,832 77,995 13,259 103,086 Total ¥ 56,735,130 ¥ 40,097,982 ¥ 1,265,289 ¥ 98,098,401 At March 31, 2022 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 57,371 ¥ 2,455 ¥ — ¥ 59,826 Trading derivative liabilities 217,570 10,697,699 43,951 10,959,220 Interest rate contracts 19,841 5,615,033 16,816 5,651,690 Foreign exchange contracts 4,017 4,901,054 2,097 4,907,168 Equity contracts 193,712 80,806 2,559 277,077 Commodity contracts — — 22,029 22,029 Credit derivatives — 100,806 79 100,885 Other (7) — — 371 371 Obligation to return securities received as collateral (5) 6,670,482 155,733 — 6,826,215 Other (6) — 525,135 16,463 541,598 Liabilities held for sale 852 50,744 1,603 53,199 Other 852 50,744 1,603 53,199 Total ¥ 6,946,275 ¥ 11,431,766 ¥ 62,017 ¥ 18,440,058 At September 30, 2022 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 14,646,970 ¥ 15,320,546 ¥ 1,224,931 ¥ 31,192,447 Debt securities Japanese national government and Japanese government agency bonds 7,642,083 338,856 — 7,980,939 Japanese prefectural and municipal bonds — 133,683 — 133,683 Foreign government and official institution bonds 5,946,406 570,711 1,271 6,518,388 Corporate bonds 2,697 2,630,231 — 2,632,928 Residential mortgage-backed securities — 6,697,130 — 6,697,130 Commercial mortgage-backed securities — 13,296 — 13,296 Asset-backed securities — 1,463,922 696,378 2,160,300 Other debt securities — — 358,152 358,152 Commercial paper — 2,228,399 — 2,228,399 Equity securities (2) 1,055,784 1,244,318 169,130 2,469,232 Trading derivative assets 215,676 16,233,426 75,057 16,524,159 Interest rate contracts 131,421 7,017,623 14,920 7,163,964 Foreign exchange contracts 2,822 9,040,047 10,385 9,053,254 Equity contracts 81,433 94,454 27,090 202,977 Commodity contracts — 9 18,135 18,144 Credit derivatives — 81,293 3,870 85,163 Other (7) — — 657 657 Investment securities: Available-for-sale debt securities 30,609,047 12,360,105 272,294 43,241,446 Japanese national government and Japanese government agency bonds 28,582,282 3,400,486 — 31,982,768 Japanese prefectural and municipal bonds — 3,936,890 — 3,936,890 Foreign government and official institution bonds 2,026,765 1,002,513 — 3,029,278 Corporate bonds — 1,047,754 6,279 1,054,033 Residential mortgage-backed securities — 978,365 15 978,380 Asset-backed securities — 1,714,336 182,418 1,896,754 Other debt securities — 188,757 83,582 272,339 Commercial Paper — 91,004 — 91,004 Equity securities 4,360,147 133,468 68,620 4,562,235 Marketable equity securities 4,360,147 132,453 — 4,492,600 Nonmarketable equity securities (3) — 1,015 68,620 69,635 Other (4) 1,166,466 54,127 96,161 1,316,754 Assets held for sale 509,597 2,927,191 85,301 3,522,089 Investment securities 505,221 2,832,178 63,796 3,401,195 Other 4,376 95,013 21,505 120,894 Total ¥ 51,507,903 ¥ 47,028,863 ¥ 1,822,364 ¥ 100,359,130 At September 30, 2022 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 167,804 ¥ 8,681 ¥ — ¥ 176,485 Trading derivative liabilities 156,629 17,420,335 50,175 17,627,139 Interest rate contracts 25,850 8,323,000 23,447 8,372,297 Foreign exchange contracts 902 8,920,538 2,986 8,924,426 Equity contracts 129,877 72,175 5,254 207,306 Commodity contracts — — 18,161 18,161 Credit derivatives — 104,622 49 104,671 Other (7) — — 278 278 Obligation to return securities received as collateral (5) 6,460,545 217,604 73,595 6,751,744 Other (6) — 248,171 121,484 369,655 Liabilities held for sale 176 128,777 676 129,629 Other 176 128,777 676 129,629 Total ¥ 6,785,154 ¥ 18,023,568 ¥ 245,930 ¥ 25,054,652 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, 2022 were ¥179,278 million and those at September 30, 2022 were ¥218,043 million, respectively. The amounts of unfunded commitments related to these private equity funds at March 31, 2022 were ¥110,360 million, and those at September 30, 2022 were ¥178,960 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, 2022. (3) Excludes certain investments valued at net asset value of real estate funds and private equity and other funds whose fair values at March 31, 2022 were ¥30,142 million and ¥39,462 million, respectively, and those at September 30, 2022 were ¥31,224 million and ¥41,327 million, respectively. The amounts of unfunded commitments related to these real estate funds and private equity and other funds at March 31, 2022 were ¥1,011 million and nil, respectively, and those at September 30, 2022 were ¥1,154 million and nil, respectively. For the nature and details of these investments, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2022. (4) Mainly comprises securities received as collateral that may be sold or repledged under securities lending transactions and money in trust for segregating cash deposited by customers on security transactions. (5) Included in Other liabilities. (6) Includes other short-term borrowings, long-term debt, bifurcated embedded derivatives carried at fair value and derivative liabilities designated as hedging instruments. (7) Includes certain derivatives such as earthquake derivatives. 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, 2021 and 2022. 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. Total gains (losses) Change in unrealized gains (losses) for assets and liabilities still held at September 30, 2021 March 31, 2021 Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, 2021 (10) (in millions) Assets Trading account assets: Trading securities (1) ¥ 756,413 ¥ 4,592 (2) ¥ — ¥ 268,583 ¥ — ¥ (71,430) ¥ (259,220) ¥ 660 ¥ — ¥ 699,598 ¥ 4,423 (2) Debt securities Foreign government and official institution bonds 1,280 210 — 28,427 — (28,469) (15) — — 1,433 (16) Corporate bonds 77 (69) — 125 — (100) — 650 — 683 (69) Residential mortgage-backed securities 1,000 (2) — 41,844 — (42,823) (19) — — — — Asset-backed securities 336,811 4,193 — 166,760 — — (251,750) — — 256,014 5,297 Other debt securities 277,635 2,317 — — — — — — — 279,952 2,317 Equity securities 139,610 (2,057) — 31,427 — (38) (7,436) 10 — 161,516 (3,106) Trading derivatives—net 25,027 17,711 (2) 1,113 36 (355) — (9,069) (463) (5,524) 28,476 15,161 (2) Interest rate contracts—net 14,179 3,916 653 — — — 2,634 8 198 21,588 3,764 Foreign exchange contracts—net 7,283 302 147 21 — — 773 (471) (5,857) 2,198 369 Equity contracts—net 623 13,378 319 15 — — (12,327) — 135 2,143 10,907 Commodity contracts—net (63) 16 (6) — — — — — — (53) 16 Credit derivatives—net 2,271 113 — — — — (149) — — 2,235 113 Other—net (9) 734 (14) — — (355) — — — — 365 (8) Investment securities: Available-for-sale debt securities 289,616 (618) (3) 22,746 118,700 — — (170,482) 15,653 (110) 275,505 7,452 (3) Foreign government and official institution bonds 16,718 — 1,104 4,805 — — (5,159) — — 17,468 (30) Corporate bonds 162 (326) 68 557 — — (57) 2,854 (110) 3,148 (261) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed securities 1,599 — 104 — — — (524) — — 1,179 9 Asset-backed securities 136,920 (292) 8,690 113,311 — — (141,823) — — 116,806 3,495 Other debt securities 134,202 — 12,780 27 — — (22,919) 12,799 (8) — 136,889 4,239 Equity securities 45,569 2,588 (3) — 3,602 — (1,317) — 130 (422) 50,150 1,614 (3) Nonmarketable equity securities 45,569 2,588 — 3,602 — (1,317) — 130 (422) 50,150 1,614 Other 18,784 (1,383) (7) 986 1,758 — (4,523) (57) — (21) 15,544 (1,382) (7) Total ¥ 1,135,409 ¥ 22,890 ¥ 24,845 ¥ 392,679 ¥ (355) ¥ (77,270) ¥ (438,828) ¥ 15,980 ¥ (6,077) ¥ 1,069,273 ¥ 27,268 Liabilities Other ¥ (2,212) ¥ (8,176) (4) ¥ (2,341) ¥ — ¥ 8,145 ¥ — ¥ (12,450) ¥ 6,809 (6) ¥ (7,233) (6) ¥ 3,576 ¥ (2,656) (4) Total ¥ (2,212) ¥ (8,176) ¥ (2,341) ¥ — ¥ 8,145 ¥ — ¥ (12,450) ¥ 6,809 ¥ (7,233) ¥ 3,576 ¥ (2,656) Total gains (losses) Change in unrealized gains (losses) for assets and liabilities still held at September 30, 2022 March 31, Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, 2022 (in millions) Assets Trading account assets: Trading securities (1) ¥ 797,997 ¥ 125,172 (2) ¥ — ¥ 333,302 ¥ — ¥ (21,408) ¥ (9,255) ¥ — ¥ (877) ¥ 1,224,931 ¥ 121,950 (2) Debt securities Foreign government and official institution bonds 1,711 57 — 5,712 — (5,765) (250) — (194) 1,271 5 Corporate bonds 683 — — — — — — — (683) — — Asset-backed securities 315,231 72,667 — 324,375 — (15,636) (259) — — 696,378 71,580 Other debt securities 313,166 44,986 — — — — — — — 358,152 44,986 Equity securities 167,206 7,462 — 3,215 — (7) (8,746) — — 169,130 5,379 Trading derivatives—net 71,089 (24,159) (2) 1,775 612 (334) — (19,889) 20,791 (25,003) 24,882 (21,160) (2) Interest rate contracts—net 37,493 (39,744) 30 — — — (1,901) 20,612 (5) (25,017) (5) (8,527) (33,999) Foreign exchange contracts—net 7,463 3,509 392 — — — (4,200) 179 56 7,399 1,705 Equity contracts—net 23,420 10,723 1,355 19 — — (13,639) — (42) 21,836 9,785 Commodity contracts—net (45) 26 (2) — — — (5) — — (26) 27 Credit derivatives—net 2,729 1,236 — — — — (144) — — 3,821 1,232 Other—net (9) 29 91 — 593 (334) — — — — 379 90 Investment securities: Available-for-sale debt securities 212,936 (1,096) (3) 30,227 170,610 — — (141,788) 1,405 — 272,294 23,794 (3) Foreign government and official institution bonds 11,890 — (925) 128 — — (11,093) — — — — Corporate bonds 3,089 (42) 210 1,824 — — (57) 1,255 — 6,279 165 Residential mortgage-backed securities 15 — — — — — — — — 15 — Asset-backed securities 124,379 (1,125) 21,490 168,312 — — (130,638) — — 182,418 14,106 Other debt securities 73,563 71 9,452 346 — — — 150 — 83,582 9,523 Equity securities 55,883 1,881 (3) 495 9,884 — (1,336) (806) 2,855 (236) 68,620 1,737 (3) Nonmarketable equity securities 55,883 1,881 495 9,884 — (1,336) (806) 2,855 (236) 68,620 1,737 Other 4,912 357 (7) (3) 89,081 — — (111) 1,925 — 96,161 357 (7) Assets held for sale 76,918 3,928 (11) 13,071 1,120 — (1,158) (9,254) — — 84,625 15,113 (11) Investment securities 65,262 (1,261) 10,114 93 — (1,158) (9,254) — — 63,796 7,456 Other 11,656 5,189 2,957 1,027 — — — — — 20,829 7,657 Total ¥ 1,219,735 ¥ 106,083 ¥ 45,565 ¥ 604,609 ¥ (334) ¥ (23,902) ¥ (181,103) ¥ 26,976 ¥ (26,116) ¥ 1,771,513 ¥ 141,791 Liabilities Obligation to return securities received as collateral ¥ — ¥ — ¥ — ¥ — ¥ 73,595 ¥ — ¥ — ¥ — ¥ — ¥ 73,595 ¥ — Other 16,463 54,070 (4) (10,269) — 54,527 — (19,043) 116,892 (6) (3,554) (6) 121,484 58,483 (4) Total ¥ 16,463 ¥ 54,070 ¥ (10,269) ¥ — ¥ 128,122 ¥ — ¥ (19,043) ¥ 116,892 ¥ (3,554) ¥ 195,079 ¥ 58,483 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 (loss), net of tax—net. (4) Included in Trading account profits (losses)—net. (5) For the six months ended September 30, 2022, 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 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 Fees and commissions income and Other non-interest income. (8) Transfers relate to the reclassification of certain securities. (9) Includes certain derivatives such as earthquake derivatives. (10) Fair value amounts in this table include those relating to transferred business of MUFG Union Bank, such as Available-for-sale debt securities of ¥67,266 million and Other of ¥12,053 million, which are included in Other assets, in the accompanying condensed consolidated balance sheets at September 30, 2021. See Note 2 for more information. (11) Included in Investment securities gains (losses)—net, Trading account profits (losses)—net, Fees and commissions income and Other comprehensive income (loss), net of tax—net. 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, 2022 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities, Investment securities and Other assets: Foreign government and official institution bonds ¥ 17,297 Return on equity method Probability of default 0.2 % ~ 1.8 % 0.5 % Recovery rate 35.0 % ~ 70.0 % 64.4 % Market-required return on capital 10.0% 10.0 % Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities 98,325 Discounted cash flow Recovery rate 100.0% 100.0 % 238,864 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 0.6 % ~ 1.0 % 0.9 % Prepayment rate 29.0% 29.0 % Probability of default 0.0 % ~ 85.4 % — (3) Recovery rate 69.9% 69.9 % Other debt securities 369,445 Discounted cash flow Liquidity premium 0.9 % ~ 3.2 % 2.8 % 58,677 Return on equity method Probability of default 0.1 % ~ 8.0 % 0.4 % Recovery rate 60.0 % ~ 90.0 % 82.7 % Market-required return on capital 8.0 % ~ 10.0 % 9.9 % At March 31, 2022 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net 35,195 Option model Correlation between interest rates 30.0 % ~ 62.9 % 45.6 % Correlation between interest rate and foreign exchange rate 15.3 % ~ 60.0 % 41.0 % Volatility 0.0 % ~ 100.0 % 61.9 % Foreign exchange contracts—net 7,463 Option model Correlation between interest rates 10.0 % ~ 70.0 % 51.5 % Correlation between interest rate and foreign exchange rate 0.0 % ~ 60.0 % 37.4 % Correlation between foreign exchange rates 50.0 % ~ 70.6 % 66.4 % Volatility 9.0 % ~ 21.7 % 13.3 % Equity contracts—net 772 Option model Correlation between foreign exchange rate and equity (58.4) % ~ 55.0 % 23.1 % Correlation between equities 2.4 % ~ 95.0 % 51.4 % Volatility 26.0 % ~ 38.0 % 31.8 % 22,648 Discounted cash flow Term of litigation 1.8 years 1.8 years At September 30, 2022 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities, Investment securities and Other assets: Foreign government and official institution bonds ¥ 5,835 Return on equity method Probability of default 0.6 % ~ 1.8 % 0.7 % Recovery rate 35.0 % ~ 80.0 % 70.9 % Market-required return on capital 8.0 % ~ 10.0 % 10.0 % Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities 97,896 Discounted cash flow Recovery rate 100.0% 100.0 % 612,726 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 1.0 % ~ 1.7 % 1.5 % Prepayment rate 18.1% 18.1 % Probability of default 0.0 % ~ 99.0 % — (3) Recovery rate 69.3% 69.3 % Other debt securities 423,731 Discounted cash flow Liquidity premium 0.8 % ~ 3.2 % 2.8 % 57,962 Return on equity method Probability of default 0.1 % ~ 2.3 % 0.4 % Recovery rate 70.0 % ~ 90.0 % 84.2 % Market-required return on capital 8.0 % ~ 10.0 % 9.2 % At September 30, 2022 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net (8,527) Option model Correlation between interest rates 30.0 % ~ 64.9 % 45.8 % Correlation between interest rate and foreign exchange rate 16.3 % ~ 60.0 % 41.1 % Volatility 58.5 % ~ 80.3 % 66.5 % Foreign exchange contracts—net 7,399 Option model Correlation between interest rates 30.0 % ~ 70.0 % 56.7 % Correlation between interest rate and foreign exchange rate 0.0 % ~ 60.0 % 38.0 % Correlation between foreign exchange rates 50.0 % 70.6 % 66.4 % Volatility 12.1 % ~ 25.0 % 17.0 % Equity contracts—net 3,308 Option model Correlation between foreign exchange rate and equity (58.4) % ~ 55.0 % 18.5 % Correlation between equities 4.8 % ~ 95.0 % 53.8 % Volatility 12.5 % ~ 37.0 % 22.1 % 18,528 Discounted cash flow Term of litigation 1.3 years 1.3 years Notes: (1) The fair value as of March 31, 2022 and September 30, 2022 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, 2022. (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, 2022. 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, 2022. 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, 2022 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, 2022 and September 30, 2022: March 31, 2022 September 30, 2022 Level 1 Level 2 Level 3 Total carrying value Level 1 Level 2 Level 3 Total (in millions) Assets (3) Investment securities (1)(2) ¥ — ¥ 9,839 ¥ 11,158 ¥ 20,997 ¥ — ¥ 13,366 ¥ 12,744 ¥ 26,110 Loans 2,175 3,153 236,622 241,950 1,763 3,182 270,345 275,290 Loans held for sale — — 42,994 42,994 — — 73,124 73,124 Collateral dependent loans 2,175 3,153 193,628 198,956 1,763 3,182 197,221 202,166 Premises and equipment — — 17,301 17,301 — — 8,516 8,516 Intangible assets — — 359 359 — — 259 259 Other assets 11,880 — 17,282 29,162 178,592 — 17,861 196,453 Investments in equity method investees (1) 11,880 — 1,035 12,915 178,592 — 1,230 179,822 Other — — 16,247 16,247 — — 16,631 16,631 Assets held for sale — — 255,002 255,002 — — 5,973,073 5,973,073 Loan held for sale — — 255,002 255,002 — — 5,973,073 5,973,073 Total ¥ 14,055 ¥ 12,992 ¥ 537,724 ¥ 564,771 ¥ 180,355 ¥ 16,548 ¥ 6,282,798 ¥ 6,479,701 Notes: (1) Excludes certain investments valued at net asset value of ¥26,644 million and ¥29,070 million at March 31, 2022 and September 30, 2022, respectively. The unfunded commitments related to these investments are ¥22,197 million and ¥10,775 million at March 31, 2022 and September 30, 2022, 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, 2022. (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. (3) In addition to the above table, the assets and liabilities of MUFG Union Bank, which transferred to U.S. Bancorp, were reclassified as held for sale. As a result, the disposal group was measured at the lower of carrying value or fair value less costs to sell. The amount of the lower of carrying value or fair value less costs to sell are ¥1,992,632 million and ¥2,136,237 million as of March 31, 2022 and September 30, 2022, respectively and classified in Level 3 based on the transaction's expected consideration. The following table presents losses (gains) 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, 2021 and 2022: Losses(gains) for the six months ended September 30, 2021 2022 (in millions) Investment securities ¥ 1,759 ¥ 505 Loans 15,777 (66) Loans held for sale 759 451 Collateral dependent loans 15,018 (517) Premises and equipment 1,660 2,579 Intangible assets 17,459 849 Other assets 17,500 50,761 Investments in equity method investees 7,020 46,928 Other 10,480 3,833 Assets held for sale — 209,107 Loan held for sale — 209,107 Total (1) ¥ 54,155 ¥ 263,735 Note: (1) In addition to the above table, the assets and liabilities of MUFG Union Bank, which transferred to U.S. Bancorp, were reclassified as held for sale. As a result, the disposal group was measured at the lower of carrying value or fair value less costs to sell. The impairment of assets held for sale of ¥134,141 million was recognized during the second half of the fiscal year ended March 31, 2022. However, the fair value less cost to sell exceeded the carrying value as of September 30, 2022, and the reversal of ¥134,141 million, which is included in Reversal of impairment of assets held for sale in the consolidated statements of operations through the six months ended September 30, 2022, was recognized. 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, 2022. The following table presents the gains or losses recorded for the six months ended September 30, 2021 and 2022 related to the eligible instruments for which the MUFG Group elected the fair value option: Six months ended September 30, 2021 2022 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 ¥ 41,324 ¥ 121,942 ¥ 163,266 ¥ (1,434,189) ¥ 2,339,864 ¥ 905,675 Total ¥ 41,324 ¥ 121,942 ¥ 163,266 ¥ (1,434,189) ¥ 2,339,864 ¥ 905,675 Financial liabilities: Other short-term borrowings (1) ¥ 4,383 ¥ — ¥ 4,383 ¥ (3,295) ¥ — ¥ (3,295) Long-term debt (1) 32,402 — 32,402 57,444 — 57,444 Total ¥ 36,785 ¥ — ¥ 36,785 ¥ 54,149 ¥ — ¥ 54,149 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, 2022 and September 30, 2022 for long-term debt instruments for which the fair value option has been elected: March 31, 2022 September 30, 2022 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 ¥ 511,851 ¥ 483,051 ¥ (28,800) ¥ 525,683 ¥ 450,403 ¥ (75,280) Total ¥ 511,851 ¥ 483,051 ¥ (28,800) ¥ 525,683 ¥ 450,403 ¥ (75,280) 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 operations 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, 2022 and September 30, 2022: At March 31, 2022 Carrying amount Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 50,972 ¥ 50,972 ¥ 50,972 ¥ — ¥ — Interest-earning deposits in other banks 58,848 58,848 — 58,848 — Call loans and funds sold 1,316 1,316 — 1,316 — Receivables under resale agreements 12,503 12,503 — 12,503 — Receivables under securities borrowing transactions 4,496 4,496 — 4,496 — Investment securities 4,595 4,606 1,758 460 2,388 Loans, net of allowance for credit losses (1) 111,669 112,391 2 245 112,144 Other financial assets (2) 9,207 9,207 — 9,207 — Financial liabilities: Deposits Non-interest-bearing ¥ 36,496 ¥ 36,496 ¥ — ¥ 36,496 ¥ — Interest-bearing 188,112 188,080 — 188,080 — Total deposits 224,608 224,576 — 224,576 — Call money and funds purchased 2,416 2,416 — 2,416 — Payables under repurchase agreements 27,726 27,726 — 27,726 — Payables under securities lending transactions 1,022 1,022 — 1,022 — Due to trust account and other short-term borrowings 22,728 22,728 — 22,728 — Long-term debt 34,245 33,974 — 33,974 — Other financial liabilities 7,560 7,560 — 7,560 — At September 30, 2022 Carrying Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 51,856 ¥ 51,856 ¥ 51,856 ¥ — ¥ — Interest-earning deposits in other banks 49,828 49,828 — 49,828 — Call loans and funds sold 1,615 1,615 — 1,615 — Receivables under resale agreements 13,384 13,384 — 13,384 — Receivables under securities borrowing transactions 4,487 4,487 — 4,487 — Investment securities 13,847 13,630 7,219 3,748 2,663 Loans, net of allowance for credit losses (1) 121,673 122,041 2 285 121,754 Other financial assets (2) 10,244 10,244 — 10,244 — Financial liabilities: Deposits Non-interest-bearing ¥ 36,289 ¥ 36,289 ¥ — ¥ 36,289 ¥ — Interest-bearing 194,938 194,926 — 194,926 — Total deposits 231,227 231,215 — 231,215 — Call money and funds purchased 3,452 3,452 — 3,452 — Payables under repurchase agreements 34,638 34,638 — 34,638 — Payables under securities lending transactions 902 902 — 902 — Due to trust account and other short-term borrowings 12,776 12,776 — 12,776 — Long-term debt 37,014 35,981 — 35,927 54 Other financial liabilities 9,749 9,749 — 9,749 — 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 ¥3,067 billion and ¥3,722 billion at March 31, 2022 and September 30, 2022, 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, 2022 and September 30, 2022 was not material.

Investments in Equity Method In

Investments in Equity Method Investees	6 Months Ended
	Sep. 30, 2022
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, 2021 and 2022 are as follows: 2021 2022 (in billions) Net revenues ¥ 3,240 ¥ 3,499 Total non-interest expenses 2,193 2,582 Income from continuing operations before income taxes 1,037 899 Net income applicable to Morgan Stanley 793 687

Subsequent Events

Subsequent Events	6 Months Ended
	Sep. 30, 2022
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS Approval of Dividends On November 14, 2022 the Board of Directors of MUFG approved the payment of semi-annual interim cash dividends of ¥16.0 per share of Common stock, totaling ¥197,131 million, that were payable on December 5, 2022 to the shareholders of record on September 30, 2022. Repurchase and Cancellation of own shares At the meeting of the Board of Directors of MUFG held on November 14, 2022, it was resolved to repurchase up to 300,000,000 shares of MUFG’s common stock by market purchases based on the discretionary dealing contract regarding repurchase of its own shares for approximately ¥150 billion, in aggregate, from December 2, 2022 to January 31, 2023. The repurchase plan as authorized by the Board of Directors of MUFG allowed for the repurchase of an aggregate amount of up to 300,000,000 shares, which represents the equivalent of 2.4% of the total number of common shares outstanding excluding its own shares, or of an aggregate repurchase amount of up to ¥150 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 30, 2022, MUFG canceled 418,926,300 shares in satisfaction of the resolution adopted at the meeting of the Board of Directors of MUFG held on May 16, 2022. Sale of MUFG Union Bank and Investment in Shares of U.S. Bancorp On December 1, 2022, the MUFG Group completed the Share Transfer and MUAH received from U.S. Bancorp cash ($5.5 billion (approximately ¥754.0 billion )) and the common stock of USB (approximately 44 million shares of USB common stock (approximate value was $2 billion (approximately ¥276.1 billion), representing approximately 3% of USB’s outstanding shares)) on the closing date, and will receive from USB an additional $3.5 billion (approximately ¥479.8 billion) in cash within five years of the closing date. The purchase price is subject to certain customary adjustments. Before the closing of the Share Transfer, MUFG Union Bank declared and paid a special dividend of approximately $4.6 billion (approximately ¥628.7 billion) to MUAH. Total transaction value on the closing date (including a special dividend received by MUAH) was approximately $15.6 billion (approximately ¥2,138.6 billion ). The MUFG Group concluded that transferring MUFG Union Bank to USB, a major U.S. bank with a strong business foundation, would be the most appropriate decision that is expected to lead to providing higher quality financial services to customers and communities and unlock MUFG Union Bank’s potential franchise value. From the perspective of its optimization of management resources in the current medium-term business plan, the MUFG Group determined that the sale of MUFG Union Bank and the shift of focus to corporate transactions in the U.S. would help maximize shareholder value through increasing capital efficiency. Both the MUFG Group and USB have entered into a Transitional Service Agreement and a Reverse Transitional Service Agreement with an aim for both MUFG Bank and MUFG Union Bank to be able to smoothly continue to provide high quality financial services even after the Share Transfer. MUFG Bank provides and receives certain services based on such agreements. In addition, the corporate credit card business for GCIB business customers and certain Japanese customers is expected to be transferred to MUFG Bank, subject to certain conditions, including the receipt of regulatory approval.

Basis of Semiannual Condensed_2

Basis of Semiannual Condensed Consolidated Financial Statements (Policies)	6 Months Ended
	Sep. 30, 2022
Accounting Policies [Abstract]
Description of Business	Description of BusinessMitsubishi 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	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 which are not included in the consolidated financial statements issued by MUFG and certain of its subsidiaries in accordance with 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, 2022. 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.
Use of Estimates	Use of EstimatesThe 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.
Reclassifications	Reclassifications Certain reclassifications and format changes have been made to the unaudited condensed consolidated financial statements for the six months ended September 30, 2021 to conform to the presentation for the six months ended September 30, 2022.
Accounting Changes	Accounting Changes Accounting for Obligations to Safeguard Crypto-Assets an Entity Holds for Platform Users – In March 2022, the U.S. Securities and Exchange Commission ("SEC") issued Staff Accounting Bulletin No. 121 which expresses the views of the SEC staff regarding the accounting for obligations to safeguard crypto-assets an entity holds for platform users. This guidance requires an entity that performs crypto asset custodial activities, whether directly or through an agent acting on its behalf, to record a liability with a corresponding asset. In addition, the guidance requires disclosure of the nature and amount of crypto assets the entity is responsible for safeguarding for its customers. This guidance is effective for interim and annual periods ending after June 15, 2022. The MUFG Group adopted this guidance on April 1, 2022, and there was no material impact on its financial position and results of operations.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Troubled Debt Restructurings and Vintage Disclosures – In March 2022, the Financial Accounting Standards Board ("FASB") issued new guidance which eliminates the accounting and disclosure requirements for troubled debt restructurings ("TDRs") by creditors and introduces new required disclosures for loan modifications made to borrowers experiencing financial difficulty. The guidance also amends the requirement for vintage disclosures to disclose current period gross charge-offs by year of origination. This guidance is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The MUFG Group is currently evaluating what effect this guidance will have on its consolidated financial statements and related disclosures. Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions – In June 2022, the 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 is currently evaluating what effect this guidance will have on its consolidated financial statements and related disclosures.

Business Developments (Tables)

Business Developments (Tables)	6 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Schedule of assets and liabilities reclassified as held for sale	Assets and liabilities reclassified as held for sale at March 31, 2022 and September 30, 2022 are shown below: At March 31, 2022 At September 30, 2022 (in millions) Assets held for sale: Interest-earning deposits in other banks ¥ 1,110,633 ¥ 1,251,032 Investment securities 3,188,257 3,401,195 Loans, net of allowance for credit losses 6,561,316 7,690,437 Other 761,361 1,073,879 Total ¥ 11,621,567 ¥ 13,416,543 Liabilities held for sale: Deposits ¥ 10,448,481 ¥ 12,158,738 Other 709,179 1,591,815 Total ¥ 11,157,660 ¥ 13,750,553

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Sep. 30, 2022
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, 2022 and September 30, 2022: At March 31, 2022: 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 ¥ 34,383,131 ¥ 77,144 ¥ 132,511 ¥ 34,327,764 Japanese prefectural and municipal bonds 4,154,459 6,672 14,987 4,146,144 Foreign government and official institution bonds 2,671,797 8,586 49,040 2,631,343 Corporate bonds 1,081,620 9,601 1,073 1,090,148 Residential mortgage-backed securities 900,799 256 648 900,407 Asset-backed securities 1,547,098 41,544 222 1,588,420 Other debt securities 104,869 2,243 3,533 103,579 Commercial paper 1,010,607 49 19 1,010,637 Total ¥ 45,854,380 ¥ 146,095 ¥ 202,033 ¥ 45,798,442 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 1,808,312 ¥ 13,691 ¥ 3,633 ¥ 1,818,370 Japanese prefectural and municipal bonds 175,072 4 1,116 173,960 Residential mortgage-backed securities 234,652 49 8,778 225,923 Asset-backed securities 2,377,073 12,352 1,373 2,388,052 Total ¥ 4,595,109 ¥ 26,096 ¥ 14,900 ¥ 4,606,305 At September 30, 2022: Amortized Gross unrealized gains Gross unrealized losses Fair value (in millions) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 32,116,268 ¥ 30,516 ¥ 164,016 ¥ 31,982,768 Japanese prefectural and municipal bonds 3,958,306 3,316 24,732 3,936,890 Foreign government and official institution bonds 3,192,143 1,809 164,674 3,029,278 Corporate bonds 1,048,053 8,820 2,840 1,054,033 Residential mortgage-backed securities 978,426 466 512 978,380 Asset-backed securities 1,773,902 123,378 526 1,896,754 Other debt securities 277,638 2,464 7,763 272,339 Commercial paper 91,003 2 1 91,004 Total ¥ 43,435,739 ¥ 170,771 ¥ 365,064 ¥ 43,241,446 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 7,362,800 ¥ 12,002 ¥ 18,138 ¥ 7,356,664 Japanese prefectural and municipal bonds 569,921 — 3,227 566,694 Residential mortgage-backed securities 3,223,324 638 179,931 3,044,031 Asset-backed securities 2,691,055 749 28,872 2,662,932 Total ¥ 13,847,100 ¥ 13,389 ¥ 230,168 ¥ 13,630,321
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 ¥ 2,914 ¥ 2,913 ¥ 23,495,982 Due from one year to five years 4,301,835 4,309,074 11,570,005 Due from five years to ten years 5,305,014 5,274,804 4,409,181 Due after ten years 4,237,337 4,043,530 3,766,278 Total ¥ 13,847,100 ¥ 13,630,321 ¥ 43,241,446
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, 2022 and September 30, 2022 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, 2022: 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 ¥ 22,998,960 ¥ 126,516 ¥ 353,932 ¥ 5,995 ¥ 23,352,892 ¥ 132,511 486 Japanese prefectural and municipal bonds 2,430,603 14,864 31,139 123 2,461,742 14,987 926 Foreign government and official institution bonds 1,376,267 31,470 167,446 17,570 1,543,713 49,040 87 Corporate bonds 427,739 925 94,364 148 522,103 1,073 173 Residential mortgage-backed securities 178,857 58 391,265 590 570,122 648 12 Asset-backed securities 115,695 222 — — 115,695 222 12 Other debt securities 44,128 3,526 1,089 7 45,217 3,533 4 Commercial paper 367,043 19 — — 367,043 19 30 Total ¥ 27,939,292 ¥ 177,600 ¥ 1,039,235 ¥ 24,433 ¥ 28,978,527 ¥ 202,033 1,730 Less than 12 months 12 months or more Total At September 30, 2022: 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 ¥12,347,744 ¥ 91,378 ¥ 1,024,602 ¥ 72,638 ¥ 13,372,346 ¥ 164,016 481 Japanese prefectural and municipal bonds 2,812,129 23,102 81,348 1,630 2,893,477 24,732 1,015 Foreign government and official institution bonds 2,132,089 114,875 310,779 49,799 2,442,868 164,674 127 Corporate bonds 468,706 2,569 103,289 271 571,995 2,840 229 Residential mortgage-backed securities 42,503 1 546,372 511 588,875 512 13 Asset-backed securities 162,398 526 — — 162,398 526 12 Other debt securities 136,238 541 44,974 7,222 181,212 7,763 46 Commercial paper 35,001 1 — — 35,001 1 3 Total ¥ 18,136,808 ¥ 232,993 ¥ 2,111,364 ¥ 132,071 ¥ 20,248,172 ¥ 365,064 1,926
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, 2021 and 2022. Six months ended 2021 2022 (in millions) Net gains (losses) recognized during the period (1) ¥ 289,949 ¥ (203,007) Less: Net losses recognized during the period on equity securities sold during the period (1,913) (214) Net unrealized gains (losses) recognized during the reporting period still held at the reporting date ¥ 291,862 ¥ (202,793) 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, 2022 and September 30, 2022. March 31, September 30, (in millions) Measurement alternative balance ¥ 310,570 ¥ 335,976
Related Adjustments for Nonmarketable Equity Securities	The related adjustments for these securities during the six months ended September 30, 2021 and 2022 were as follows: Six months ended 2021 2022 (in millions) Measurement alternative impairment losses (1)(4) ¥ (2,834) ¥ (5,155) Measurement alternative downward changes for observable prices (1)(2)(3)(5) ¥ — ¥ (440) Measurement alternative upward changes for observable prices (1)(2)(3)(6) ¥ 1,075 ¥ 5,090 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, 2022 and September 30, 2022 were ¥12,354 million and ¥17,383 million, respectively. (5) The cumulative downward changes for observable prices at March 31, 2022 and September 30, 2022 were ¥954 million and ¥1,393 million, respectively. (6) The cumulative upward changes for observable prices at March 31, 2022 and September 30, 2022 were ¥54,223 million and ¥59,160 million, respectively.

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	6 Months Ended
	Sep. 30, 2022
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, 2022 and September 30, 2022. Past Due At March 31, 2022: 1-3 months Greater Total Current Loans Total Past Due 90 Days and (in millions) Commercial Domestic ¥ 12,556 ¥ 9,138 ¥ 21,694 ¥ 53,953,767 ¥ 69,257 ¥ 54,044,718 ¥ 3,260 Foreign 17,405 10,598 28,003 34,578,265 374,011 34,980,279 — Residential 32,078 13,598 45,676 13,255,829 — 13,301,505 3,360 Card 10,250 26,818 37,068 427,198 — 464,266 — MUAH 625 — 625 2,741,503 70,841 2,812,969 — Krungsri 115,636 126,494 242,130 6,580,635 — 6,822,765 — Other 21,729 21,152 42,881 1,002,240 — 1,045,121 — Total ¥ 210,279 ¥ 207,798 ¥ 418,077 ¥ 112,539,437 ¥ 514,109 ¥ 113,471,623 ¥ 6,620 Unearned income, unamortized premiums—net and deferred loan fees—net (322,230) Total ¥ 113,149,393 Past Due At September 30, 2022: 1-3 months Greater Total Current Loans Total Past Due 90 Days and Accruing (in millions) Commercial Domestic ¥ 9,366 ¥ 15,786 ¥ 25,152 ¥ 54,871,771 ¥ 55,879 ¥ 54,952,802 ¥ 2,458 Foreign 151,201 88,165 239,366 41,659,645 528,543 42,427,554 7,504 Residential 32,082 12,673 44,755 13,068,638 — 13,113,393 3,836 Card 11,514 27,461 38,975 426,465 — 465,440 — MUAH 3,453 — 3,453 2,983,944 116,669 3,104,066 — Krungsri 184,445 132,236 316,681 7,653,216 3,819 7,973,716 — Other 14,071 25,152 39,223 1,232,570 — 1,271,793 — Total ¥ 406,132 ¥ 301,473 ¥ 707,605 ¥ 121,896,249 ¥ 704,910 ¥ 123,308,764 ¥ 13,798 Unearned income, unamortized premiums—net and deferred loan fees—net (379,943) Total ¥ 122,928,821
Nonaccrual Loans by Class	The information on nonaccrual loans by class at March 31, 2022 and September 30, 2022 are shown below: Recorded Loan Balance March 31, 2022: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) (in millions) Commercial Domestic ¥ 633,768 ¥ 109,919 Foreign 224,566 84,837 Residential 56,175 3,579 Card 62,578 — MUAH 15,349 — Krungsri 165,775 2,824 Other 26,618 7 Total ¥ 1,184,829 ¥ 201,166 Recorded Loan Balance September 30, 2022: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) (in millions) Commercial Domestic ¥ 343,483 ¥ 106,692 Foreign 293,576 84,058 Residential 51,364 3,773 Card 64,498 — MUAH 12,743 3,564 Krungsri 182,730 2,859 Other 32,755 7 Total ¥ 981,149 ¥ 200,953 Notes: (1) Nonaccrual loans in the above table do not include loans held for sale of ¥7,946 million and ¥45,177 million at March 31, 2022 and September 30, 2022, 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’ original 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, 2021 and 2022: 　　 September 30, 2021 September 30, 2022 (in millions) Commercial Domestic ¥ 2,004 ¥ 10,033 Foreign 2,301 2,247 Residential 422 378 Card 13 9 MUAH 377 51 Krungsri 2,950 3,250 Other 1,922 2,084 Total ¥ 9,989 ¥ 18,052
TDRs by Class	The following table summarizes the MUFG Group’s TDRs by class for the six months ended September 30, 2021 and 2022: Six months ended September 30, 2021: Troubled Debt Restructurings Troubled Debt Restructurings that Subsequently Defaulted Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Recorded Investment (in millions) Commercial (1)(3) Domestic ¥ 94,584 ¥ 93,578 ¥ 7,048 Foreign 529 529 8,447 Residential (1)(3) 13,707 13,707 117 Card (2)(3) 11,485 10,877 1,269 MUAH (2)(3)(4) 14,233 14,243 258 Krungsri (2)(3) 8,135 8,135 2,104 Other (2) 5,104 5,104 1,641 Total ¥ 147,777 ¥ 146,173 ¥ 20,884 Six months ended September 30, 2022: Troubled Debt Restructurings Troubled Debt Restructurings that Subsequently Defaulted Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Recorded Investment (in millions) Commercial (1)(3) Domestic ¥ 37,312 ¥ 37,312 ¥ 1,830 Foreign 17,057 17,057 — Residential (1)(3) 8,697 8,697 95 Card (2)(3) 11,408 10,934 1,410 MUAH (2)(3) 8,216 8,216 — Krungsri (2)(3) 48,899 48,899 1,827 Other (2) 7,638 7,638 1,202 Total ¥ 139,227 ¥ 138,753 ¥ 6,364 Notes: (1) TDRs for the Commercial and Residential segments include accruing loans, and do not include nonaccrual loans. (2) TDRs for the Card, MUAH, Krungsri and Other segments include accrual and nonaccrual loans. (3) For the six months ended September 30, 2021, extension of the stated maturity date of loans was the primary concession type in the Commercial, Residential and Krungsri segments, reduction in the stated rate was the primary concession type in the Card segment and forbearance was the primary concession type in the MUAH segment. For the six months ended September 30, 2022, extension of the stated maturity date of loans was the primary concession type in the Commercial, Residential and Krungsri segments, reduction in the stated rate was the primary concession type in the Card segment and forbearance was the primary concession type in the MUAH segment. (4)　The above table includes the loans in transferred business of MUFG Union Bank at September 30, 2021. See Note 2 for more information.
Credit Quality Indicators of Loans by Class	Credit quality indicators of loans and fiscal year of origination by class at March 31, 2022 and September 30, 2022 are shown below: Term Loans Revolving Revolving Total (1) At March 31, 2022: 2021 2020 2019 2018 2017 Prior (in millions) Commercial: ¥ 27,445,726 ¥ 10,850,943 ¥ 7,634,337 ¥ 6,509,048 ¥ 3,924,194 ¥ 8,827,987 ¥ 23,380,258 ¥ 9,236 ¥ 88,581,729 Domestic 19,038,698 7,937,529 5,003,439 4,499,174 2,817,819 6,639,931 8,038,871 — 53,975,461 Normal 18,756,933 7,646,272 4,669,784 4,335,640 2,698,956 6,205,070 7,686,772 — 51,999,427 Close Watch 257,276 266,311 167,387 150,834 104,047 307,367 306,193 — 1,559,415 Likely to become Bankrupt or Legally/Virtually Bankrupt 24,489 24,946 166,268 12,700 14,816 127,494 45,906 — 416,619 Foreign 8,407,028 2,913,414 2,630,898 2,009,874 1,106,375 2,188,056 15,341,387 9,236 34,606,268 Normal 8,250,729 2,814,362 2,501,594 1,881,532 1,031,105 2,031,243 15,089,995 1,912 33,602,472 Close Watch 149,502 90,355 73,253 110,170 36,274 93,622 223,203 7,324 783,703 Likely to become Bankrupt or Legally/Virtually Bankrupt 6,797 8,697 56,051 18,172 38,996 63,191 28,189 — 220,093 Residential ¥ 782,446 ¥ 641,706 ¥ 976,736 ¥ 866,282 ¥ 900,959 ¥ 9,104,691 ¥ 28,685 ¥ — ¥ 13,301,505 Accrual 782,314 641,499 976,162 865,761 900,120 9,054,326 26,460 — 13,246,642 Nonaccrual 132 207 574 521 839 50,365 2,225 — 54,863 Card ¥ 19 ¥ 106 ¥ 182 ¥ 175 ¥ 276 ¥ 437 ¥ 400,552 ¥ 62,519 ¥ 464,266 Accrual 1 8 8 9 13 41 387,648 13,960 401,688 Nonaccrual 18 98 174 166 263 396 12,904 48,559 62,578 MUAH ¥ 364,236 ¥ 306,134 ¥ 147,821 ¥ 62,455 ¥ 50,264 ¥ 122,149 ¥ 1,689,069 ¥ — ¥ 2,742,128 Credit Quality Based on Internal Credit Ratings Pass 357,334 298,658 126,083 48,653 43,938 117,778 1,642,946 — 2,635,390 Special Mention 3,106 — 20,013 2,415 5,981 805 33,471 — 65,791 Classified 3,796 7,476 1,725 11,387 345 3,566 12,652 — 40,947 Krungsri ¥ 1,350,265 ¥ 964,094 ¥ 901,955 ¥ 680,090 ¥ 329,847 ¥ 481,981 ¥ 2,099,727 ¥ 14,806 ¥ 6,822,765 Performing 1,297,054 891,374 788,828 573,840 270,783 363,905 1,961,481 — 6,147,265 Under-Performing 42,326 58,084 90,519 80,841 45,982 78,690 113,283 — 509,725 Non-Performing 10,885 14,636 22,608 25,409 13,082 39,386 24,963 14,806 165,775 Other ¥ 400,482 ¥ 143,336 ¥ 85,496 ¥ 40,445 ¥ 35,346 ¥ — ¥ 340,016 ¥ — ¥ 1,045,121 Accrual 398,744 136,317 83,278 38,609 32,934 — 328,621 — 1,018,503 Nonaccrual 1,738 7,019 2,218 1,836 2,412 — 11,395 — 26,618 Term Loans Revolving Revolving Total (1) At September 30, 2022: 2022 2021 2020 2019 2018 Prior (in millions) Commercial: ¥ 21,731,378 ¥ 14,061,406 ¥ 9,755,525 ¥ 6,866,603 ¥ 5,717,420 ¥ 11,808,586 ¥ 26,853,224 ¥ 1,792 ¥ 96,795,934 Domestic 14,196,806 7,772,035 7,284,193 4,496,355 4,032,020 8,760,989 8,354,525 — 54,896,923 Normal 14,004,153 7,610,769 7,031,429 4,325,773 3,897,211 8,287,409 8,064,659 — 53,221,403 Close Watch 176,407 144,563 224,012 139,091 125,667 342,051 261,505 — 1,413,296 Likely to become Bankrupt or Legally/Virtually Bankrupt 16,246 16,703 28,752 31,491 9,142 131,529 28,361 — 262,224 Foreign 7,534,572 6,289,371 2,471,332 2,370,248 1,685,400 3,047,597 18,498,699 1,792 41,899,011 Normal 7,362,851 6,194,146 2,375,072 2,237,446 1,580,629 2,806,341 18,251,401 1,792 40,809,678 Close Watch 156,232 81,045 79,510 62,350 81,173 138,357 213,865 — 812,532 Likely to become Bankrupt or Legally/Virtually Bankrupt 15,489 14,180 16,750 70,452 23,598 102,899 33,433 — 276,801 Residential ¥ 378,525 ¥ 764,610 ¥ 625,443 ¥ 948,207 ¥ 838,727 ¥ 9,531,992 ¥ 25,889 ¥ — ¥ 13,113,393 Accrual 378,250 764,493 625,257 947,542 838,186 9,486,011 23,820 — 13,063,559 Nonaccrual 275 117 186 665 541 45,981 2,069 — 49,834 Card ¥ 6 ¥ 69 ¥ 179 ¥ 196 ¥ 185 ¥ 651 ¥ 399,127 ¥ 65,027 ¥ 465,440 Accrual — 2 9 6 9 44 386,707 14,165 400,942 Nonaccrual 6 67 170 190 176 607 12,420 50,862 64,498 MUAH ¥ 186,266 ¥ 322,804 ¥ 249,301 ¥ 125,449 ¥ 54,403 ¥ 104,901 ¥ 1,944,273 ¥ — ¥ 2,987,397 Credit Quality Based on Internal Credit Ratings Pass 185,309 311,870 241,100 100,027 43,605 96,564 1,913,247 — 2,891,722 Special Mention 957 4,100 4,237 19,955 957 7,107 19,272 — 56,585 Classified — 6,834 3,964 5,467 9,841 1,230 11,754 — 39,090 Krungsri ¥ 1,023,497 ¥ 1,252,083 ¥ 887,601 ¥ 857,126 ¥ 640,851 ¥ 755,991 ¥ 2,537,333 ¥ 15,415 ¥ 7,969,897 Performing 962,151 1,159,818 795,463 710,639 525,345 588,907 2,375,533 — 7,117,856 Under-Performing 48,126 71,383 76,313 122,984 95,458 117,792 137,255 — 669,311 Non-Performing 13,220 20,882 15,825 23,503 20,048 49,292 24,545 15,415 182,730 Other ¥ 358,527 ¥ 268,081 ¥ 107,671 ¥ 58,442 ¥ 27,983 ¥ 23,956 ¥ 427,133 ¥ — ¥ 1,271,793 Accrual 356,954 261,290 104,026 56,766 26,530 22,585 410,887 — 1,239,038 Nonaccrual 1,573 6,791 3,645 1,676 1,453 1,371 16,246 — 32,755 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, 2021 and 2022 are shown below: Six months ended September 30, 2021: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 734,577 ¥ 82,893 ¥ 44,217 ¥ 131,755 ¥ 293,396 ¥ 61,553 ¥ 1,348,391 Provision for (reversal of) credit losses (36,415) (6,943) 7,595 (38,568) 42,836 20,657 (10,838) Charge-offs 36,033 1,399 8,704 9,459 46,405 30,040 132,040 Recoveries collected 6,360 10 691 3,335 11,741 5,593 27,730 Net charge-offs 29,673 1,389 8,013 6,124 34,664 24,447 104,310 Less: Loans in transferred business of MUFG Union Bank (1) — — — (72,098) — — (72,098) Other (2) (17) — — 7,815 (141) 2,656 10,313 Balance at end of period ¥ 668,472 ¥ 74,561 ¥ 43,799 ¥ 22,780 ¥ 301,427 ¥ 60,419 ¥ 1,171,458 Six months ended September 30, 2022: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 934,086 ¥ 69,887 ¥ 40,768 ¥ 30,365 ¥ 322,386 ¥ 73,209 ¥ 1,470,701 Provision for (reversal of) credit losses (164,085) (5,867) 10,326 4,792 39,380 17,669 (97,785) Charge-offs 130,524 110 8,867 10,083 38,792 22,991 211,367 Recoveries collected 6,096 11 431 2,270 12,028 8,989 29,825 Net charge-offs 124,428 99 8,436 7,813 26,764 14,002 181,542 Other (2) 12,307 — — 3,191 40,167 10,198 65,863 Balance at end of period ¥ 657,880 ¥ 63,921 ¥ 42,658 ¥ 30,535 ¥ 375,169 ¥ 87,074 ¥ 1,257,237 Notes: (1) Represents allowance for credit losses relating to the loans in the transferred business of MUFG Union Bank, which are included in Other assets in the condensed consolidated balance sheets at September 30, 2021. (2) Other is principally comprised of gains or losses from foreign exchange translation.

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Sep. 30, 2022
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, 2021 and 2022: Six months ended 2021 2022 (in millions) Balance at beginning of period Goodwill (1) ¥ 1,094,344 ¥ 1,118,889 Accumulated impairment losses (1) (723,492) (723,492) Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank (2) — (91,786) 370,852 303,611 Foreign currency translation adjustments and other 19,329 54,093 Balance at end of period Goodwill 1,113,673 1,172,982 Accumulated impairment losses (723,492) (723,492) Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank (2) ¥ (90,123) ¥ (108,468) ¥ 300,058 ¥ 341,022 Notes: (1) Goodwill originally recognized of ¥1,900,019 million, which has been fully impaired before April 1, 2021, is not included in the table above. (2) Represents goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank, which is included in Other assets in the condensed consolidated balance sheets at September 30, 2021, March 31, 2022 and September 30, 2022, respectively. See Note 2 for more information.
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, 2022 and September 30, 2022: March 31, September 30, (in millions) Intangible assets subject to amortization: Software ¥ 788,471 ¥ 822,524 Customer relationships 246,645 260,478 Core deposit intangibles 55,087 57,587 Trade names 40,012 41,807 Other 10,335 11,880 Total 1,140,550 1,194,276 Intangible assets not subject to amortization: Other 8,051 8,089 Total ¥ 1,148,601 ¥ 1,202,365

Lease Transactions (Tables)

Lease Transactions (Tables)	6 Months Ended
	Sep. 30, 2022
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, 2021 and September 30, 2022: September 30, September 30, (in millions) Sales type and direct financing leases: Finance income on net investment ¥ 59,369 ¥ 61,812 Operating leases: Lease income 1,843 1,799 Total ¥ 61,212 ¥ 63,611

Pledged Assets and Collateral (

Pledged Assets and Collateral (Tables)	6 Months Ended
	Sep. 30, 2022
Financial Instruments Pledged as Collateral [Abstract]
Assets Mortgaged Pledged or Otherwise Subject to Lien	At September 30, 2022, assets mortgaged, pledged, or otherwise subject to lien were as follows: September 30, 2022 (in millions) Trading account securities ¥ 10,660,801 Investment securities 21,525,456 Loans 13,533,656 Other 251,462 Total ¥ 45,971,375
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, 2022 (in millions) Deposits ¥ 243,462 Payables under repurchase agreements and securities lending transactions 24,518,082 Other short-term borrowings and long-term debt 21,131,555 Other 78,276 Total ¥ 45,971,375

Severance Indemnities and Pen_2

Severance Indemnities and Pension Plans (Tables)	6 Months Ended
	Sep. 30, 2022
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, 2021 and 2022: Six months ended September 30, Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 Pension benefits and SIPs Pension benefits and SIPs Pension benefits Other benefits Pension benefits Other benefits (in millions) Service cost—benefits earned during the period ¥ 22,196 ¥ 20,580 ¥ 9,276 ¥ 100 ¥ 8,281 ¥ 56 Interest cost on projected benefit obligation 6,081 7,131 5,575 264 7,667 340 Expected return on plan assets (41,132) (42,328) (16,254) (1,182) (18,381) (1,338) Amortization of net actuarial loss (gain) 137 346 3,215 73 3,896 (77) Amortization of prior service cost (629) (650) (1,343) (189) (1,607) (212) Gain on settlements and curtailment (2,632) (2,121) — — — — Net periodic benefit cost (income) ¥ (15,979) ¥ (17,042) ¥ 469 ¥ (934) ¥ (144) ¥ (1,231)

Offsetting of Derivatives, Re_2

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions (Tables)	6 Months Ended
	Sep. 30, 2022
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 (1) Gross amounts not offset in the condensed consolidated balance sheet Net amounts At March 31, 2022: Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 10,611 ¥ — ¥ 10,611 ¥ (7,032) ¥ (620) ¥ 2,959 Receivables under resale agreements 14,527 (2,024) 12,503 (11,614) (29) 860 Receivables under securities borrowing transactions 4,571 (75) 4,496 (4,367) — 129 Total ¥ 29,709 ¥ (2,099) ¥ 27,610 ¥ (23,013) ¥ (649) ¥ 3,948 Financial liabilities: Derivative liabilities ¥ 10,948 ¥ — ¥ 10,948 ¥ (6,749) ¥ (2,225) ¥ 1,974 Payables under repurchase agreements 29,717 (1,991) 27,726 (26,115) (85) 1,526 Payables under securities lending transactions 1,097 (75) 1,022 (990) (5) 27 Obligations to return securities received as collateral 6,826 — 6,826 (1,864) — 4,962 Total ¥ 48,588 ¥ (2,066) ¥ 46,522 ¥ (35,718) ¥ (2,315) ¥ 8,489 Gross Gross amounts offset in the condensed consolidated balance sheet Net amounts presented in the condensed consolidated balance sheet (1) Gross amounts not offset in the condensed consolidated balance sheet Net amounts At September 30, 2022: Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 16,614 ¥ — ¥ 16,614 ¥ (11,671) ¥ (1,633) ¥ 3,310 Receivables under resale agreements 15,660 (2,276) 13,384 (12,687) (36) 661 Receivables under securities borrowing transactions 4,576 (89) 4,487 (4,397) — 90 Total ¥ 36,850 ¥ (2,365) ¥ 34,485 ¥ (28,755) ¥ (1,669) ¥ 4,061 Financial liabilities: Derivative liabilities ¥ 17,646 ¥ — ¥ 17,646 ¥ (11,070) ¥ (2,586) ¥ 3,990 Payables under repurchase agreements 36,876 (2,238) 34,638 (33,635) (55) 948 Payables under securities lending transactions 991 (89) 902 (879) (7) 16 Obligations to return securities received as collateral 6,752 — 6,752 (1,736) — 5,016 Total ¥ 62,265 ¥ (2,327) ¥ 59,938 ¥ (47,320) ¥ (2,648) ¥ 9,970 Note: (1) Net amounts in the above table includes those relating to Financial assets and liabilities of transferred business of MUFG Union Bank. See Note 2 for more information.
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 (1) Gross amounts not offset in the condensed consolidated balance sheet Net amounts At March 31, 2022: Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 10,611 ¥ — ¥ 10,611 ¥ (7,032) ¥ (620) ¥ 2,959 Receivables under resale agreements 14,527 (2,024) 12,503 (11,614) (29) 860 Receivables under securities borrowing transactions 4,571 (75) 4,496 (4,367) — 129 Total ¥ 29,709 ¥ (2,099) ¥ 27,610 ¥ (23,013) ¥ (649) ¥ 3,948 Financial liabilities: Derivative liabilities ¥ 10,948 ¥ — ¥ 10,948 ¥ (6,749) ¥ (2,225) ¥ 1,974 Payables under repurchase agreements 29,717 (1,991) 27,726 (26,115) (85) 1,526 Payables under securities lending transactions 1,097 (75) 1,022 (990) (5) 27 Obligations to return securities received as collateral 6,826 — 6,826 (1,864) — 4,962 Total ¥ 48,588 ¥ (2,066) ¥ 46,522 ¥ (35,718) ¥ (2,315) ¥ 8,489 Gross Gross amounts offset in the condensed consolidated balance sheet Net amounts presented in the condensed consolidated balance sheet (1) Gross amounts not offset in the condensed consolidated balance sheet Net amounts At September 30, 2022: Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 16,614 ¥ — ¥ 16,614 ¥ (11,671) ¥ (1,633) ¥ 3,310 Receivables under resale agreements 15,660 (2,276) 13,384 (12,687) (36) 661 Receivables under securities borrowing transactions 4,576 (89) 4,487 (4,397) — 90 Total ¥ 36,850 ¥ (2,365) ¥ 34,485 ¥ (28,755) ¥ (1,669) ¥ 4,061 Financial liabilities: Derivative liabilities ¥ 17,646 ¥ — ¥ 17,646 ¥ (11,070) ¥ (2,586) ¥ 3,990 Payables under repurchase agreements 36,876 (2,238) 34,638 (33,635) (55) 948 Payables under securities lending transactions 991 (89) 902 (879) (7) 16 Obligations to return securities received as collateral 6,752 — 6,752 (1,736) — 5,016 Total ¥ 62,265 ¥ (2,327) ¥ 59,938 ¥ (47,320) ¥ (2,648) ¥ 9,970 Note: (1) Net amounts in the above table includes those relating to Financial assets and liabilities of transferred business of MUFG Union Bank. See Note 2 for more information.

Repurchase Agreements and Sec_2

Repurchase Agreements and Securities Lending Transactions Accounted for as Secured Borrowings (Tables)	6 Months Ended
	Sep. 30, 2022
Disclosure of Repurchase Agreements [Abstract]
Gross Obligations by Remaining Contractual Maturity and Class of Collateral Pledged	March 31, 2022 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 6,703 ¥ 17,050 ¥ 3,934 ¥ 2,030 ¥ 29,717 Payables under securities lending transactions 972 95 29 1 1,097 Obligations to return securities received as collateral 5,782 450 437 157 6,826 Total ¥ 13,457 ¥ 17,595 ¥ 4,400 ¥ 2,188 ¥ 37,640 September 30, 2022 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 9,188 ¥ 18,047 ¥ 6,319 ¥ 3,322 ¥ 36,876 Payables under securities lending transactions 889 24 7 71 991 Obligations to return securities received as collateral 6,056 386 69 241 6,752 Total ¥ 16,133 ¥ 18,457 ¥ 6,395 ¥ 3,634 ¥ 44,619
Secured Borrowing by the Class of Collateral Pledged	Secured borrowing by the class of collateral pledged at March 31, 2022 and September 30, 2022 was as follows: March 31, 2022 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 ¥ 7,486 ¥ 359 ¥ 4,199 ¥ 12,044 Foreign government and official institution bonds 14,116 11 1,017 15,144 Corporate bonds 745 68 330 1,143 Residential mortgage-backed securities 6,720 1 — 6,721 Other debt securities 276 — 2 278 Marketable equity securities 360 641 1,278 2,279 Other 14 17 — 31 Total ¥ 29,717 ¥ 1,097 ¥ 6,826 ¥ 37,640 September 30, 2022 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 ¥ 14,908 ¥ 314 ¥ 3,500 ¥ 18,722 Foreign government and official institution bonds 11,639 18 1,394 13,051 Corporate bonds 876 75 418 1,369 Residential mortgage-backed securities 8,497 — 4 8,501 Other debt securities 390 — 72 462 Marketable equity securities 304 559 1,364 2,227 Other 262 25 — 287 Total ¥ 36,876 ¥ 991 ¥ 6,752 ¥ 44,619

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Sep. 30, 2022
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 (loss) ("Accumulated OCI"), net of tax and net of noncontrolling interests, for the six months ended September 30, 2021 and 2022: Six months ended 2021 2022 (in millions) Accumulated other comprehensive income (loss), net of taxes: Net unrealized losses on investment securities: Balance at beginning of period ¥ (383,004) ¥ (674,230) Net change during the period (28,028) (218,267) Balance at end of period ¥ (411,032) ¥ (892,497) Net debt valuation adjustments: Balance at beginning of period ¥ (37,862) ¥ (14,538) Net change during the period 5,965 45,485 Balance at end of period ¥ (31,897) ¥ 30,947 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Balance at beginning of period ¥ 19,029 ¥ 5,969 Net change during the period (5,750) (21,686) Balance at end of period ¥ 13,279 ¥ (15,717) Defined benefit plans: Balance at beginning of period ¥ (20,382) ¥ 29,124 Net change during the period (9,681) (16,948) Balance at end of period ¥ (30,063) ¥ 12,176 Foreign currency translation adjustments: Balance at beginning of period ¥ 132,738 ¥ 880,708 Net change during the period 245,484 1,409,554 Balance at end of period ¥ 378,222 ¥ 2,290,262 Balance at end of period ¥ (81,491) ¥ 1,425,171
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, 2021 and 2022: Six months ended September 30, 2021 2022 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 ¥ 19,768 ¥ (3,871) ¥ 15,897 ¥ (534,655) ¥ 132,963 ¥ (401,692) Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests (43,792) 13,390 (30,402) 296,064 (88,081) 207,983 Net change (24,024) 9,519 (14,505) (238,591) 44,882 (193,709) Net unrealized gains on investment securities attributable to noncontrolling interests 13,523 24,558 Net unrealized losses on investment securities attributable to Mitsubishi UFJ Financial Group (28,028) (218,267) Net debt valuation adjustments: Net debt valuation adjustments 8,270 (2,533) 5,737 65,470 (20,047) 45,423 Reclassification adjustment for losses included in net income (loss) before attribution of noncontrolling interests 329 (101) 228 89 (27) 62 Net change 8,599 (2,634) 5,965 65,559 (20,074) 45,485 Net debt valuation adjustments attributable to noncontrolling interests — — Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group 5,965 45,485 Net unrealized losses on derivatives qualifying for cash flow hedges: Net unrealized losses on derivatives qualifying for cash flow hedges (1,034) 515 (519) (22,892) 6,571 (16,321) Reclassification adjustment for gains included in net income (loss) before attribution of noncontrolling interests (6,748) 1,691 (5,057) (6,701) 1,662 (5,039) Net change (7,782) 2,206 (5,576) (29,593) 8,233 (21,360) Net unrealized gains on derivatives qualifying for cash flow hedges attributable to noncontrolling interests 174 326 Net unrealized losses on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group (5,750) (21,686) Defined benefit plans: Defined benefit plans (12,034) 3,385 (8,649) (23,354) 6,682 (16,672) Reclassification adjustment for gains included in net income (loss) before attribution of noncontrolling interests (1,442) 798 (644) (443) 250 (193) Net change (13,476) 4,183 (9,293) (23,797) 6,932 (16,865) Defined benefit plans attributable to noncontrolling interests 388 83 Defined benefit plans attributable to Mitsubishi UFJ Financial Group (9,681) (16,948) Foreign currency translation adjustments: Foreign currency translation adjustments 262,860 (13,271) 249,589 1,654,830 (196,704) 1,458,126 Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests 1,462 (448) 1,014 (12,257) 3,753 (8,504) Net change 264,322 (13,719) 250,603 1,642,573 (192,951) 1,449,622 Foreign currency translation adjustments attributable to noncontrolling interests 5,119 40,068 Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group 245,484 1,409,554 Other comprehensive income attributable to Mitsubishi UFJ Financial Group ¥ 207,990 ¥ 1,198,138
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 operations for the six months ended September 30, 2021 and 2022: Six months ended 2021 2022 Details of Accumulated OCI components Amount reclassified out of Accumulated OCI Line items in the consolidated statements of operations (in millions) Net unrealized losses (gains) on investment securities Net gains on sales and redemptions of Available-for-sale debt securities ¥ (43,692) ¥ (9,738) Investment securities gains (losses)—net Impairment losses on investment securities — 299,281 Investment securities gains (losses)—net Other (100) 6,521 (43,792) 296,064 Total before tax 13,390 (88,081) Income tax expense (benefit) ¥ (30,402) ¥ 207,983 Net of tax Net debt valuation adjustments ¥ 329 ¥ 89 Equity in earnings of equity method investees—net 329 89 Total before tax (101) (27) Income tax expense (benefit) ¥ 228 ¥ 62 Net of tax Net unrealized losses (gains) on derivatives qualifying for cash flow hedges Interest rate contracts ¥ (5,589) ¥ (5,173) Interest income on Loans, including fees Foreign exchange contracts (1,159) (1,528) Interest expense on Long-term debt or Foreign exchange gains (losses)—net (6,748) (6,701) Total before tax 1,691 1,662 Income tax expense (benefit) ¥ (5,057) ¥ (5,039) Net of tax Defined benefit plans Net actuarial loss (1) ¥ 3,425 ¥ 4,165 Other non-interest expenses Prior service cost (1) (2,161) (2,469) Other non-interest expenses Gain on settlements and curtailment, and other (1) (2,706) (2,139) Other non-interest expenses (1,442) (443) Total before tax 798 250 Income tax expense (benefit) ¥ (644) ¥ (193) Net of tax Foreign currency translation adjustments ¥ 1,462 ¥ (12,257) Other non-interest income 1,462 (12,257) Total before tax (448) 3,753 Income tax expense (benefit) ¥ 1,014 ¥ (8,504) Net of tax Total reclassifications for the period ¥ (50,191) ¥ 276,752 Total before tax 15,330 (82,443) Income tax expense (benefit) ¥ (34,861) ¥ 194,309 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, 2022
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, 2022 and September 30, 2022: Notional amounts (1) March 31, September 30, 2022 (in trillions) Interest rate contracts ¥ 1,391.8 ¥ 1,595.8 Foreign exchange contracts 245.0 291.3 Equity contracts 7.4 6.7 Commodity contracts 0.1 0.1 Credit derivatives 9.8 11.4 Other 3.2 3.6 Total ¥ 1,657.3 ¥ 1,908.9 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, 2022 and September 30, 2022: Fair value of derivative instruments March 31, 2022 (1)(5) September 30, 2022 (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 ¥ 5,445 ¥ — ¥ 5,445 ¥ 7,164 ¥ — ¥ 7,164 Foreign exchange contracts 4,801 2 4,803 9,053 6 9,059 Equity contracts 151 — 151 203 — 203 Commodity contracts 22 — 22 18 — 18 Credit derivatives 103 — 103 85 — 85 Other (6) 10 — 10 — — — Total derivative assets ¥ 10,532 ¥ 2 ¥ 10,534 ¥ 16,523 ¥ 6 ¥ 16,529 Derivative liabilities: Interest rate contracts ¥ 5,652 ¥ — ¥ 5,652 ¥ 8,372 ¥ — ¥ 8,372 Foreign exchange contracts 4,907 1 4,908 8,924 — 8,924 Equity contracts 277 — 277 207 — 207 Commodity contracts 22 — 22 18 — 18 Credit derivatives 101 — 101 105 — 105 Other (6) (65) — (65) (111) — (111) Total derivative liabilities ¥ 10,894 ¥ 1 ¥ 10,895 ¥ 17,515 ¥ — ¥ 17,515 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) 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 except for (6). (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, 2022. (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 operations for the six months ended September 30, 2021 and 2022: 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, 2021: Interest rate contracts ¥ — ¥ 25 ¥ 25 Foreign exchange contracts — — — Equity contracts — (115) (115) Credit derivatives — (35) (35) Other (1) (7) (22) (29) Total ¥ (7) ¥ (147) ¥ (154) Six months ended September 30, 2022: Interest rate contracts ¥ — ¥ 64 ¥ 64 Foreign exchange contracts (168) — (168) Equity contracts — (24) (24) Credit derivatives — (2) (2) Other (1) (8) 23 15 Total ¥ (176) ¥ 61 ¥ (115) 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, 2022 and September 30, 2022: Protection sold Maximum potential/Notional amount by expiration period Fair value At March 31, 2022: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 408,281 ¥ 1,874,796 ¥ 731,946 ¥ 3,015,023 ¥ (61,308) Non-investment grade 91,161 349,847 66,452 507,460 5,378 Total 499,442 2,224,643 798,398 3,522,483 (55,930) Index and basket credit default swaps : Investment grade (2) 67,600 458,153 36,955 562,708 (9,604) Non-investment grade 56,299 19,936 — 76,235 (61) Not rated 19,944 279,955 886 300,785 (7,320) Total 143,843 758,044 37,841 939,728 (16,985) Total credit default swaps sold ¥ 643,285 ¥ 2,982,687 ¥ 836,239 ¥ 4,462,211 ¥ (72,915) Protection sold Maximum potential/Notional amount by expiration period Fair value At September 30, 2022: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 628,647 ¥ 2,138,484 ¥ 638,776 ¥ 3,405,907 ¥ (3,703) Non-investment grade 140,373 332,690 59,078 532,141 19,902 Total 769,020 2,471,174 697,854 3,938,048 16,199 Index and basket credit default swaps : Investment grade (2) 65,949 754,856 10,937 831,742 (2,181) Non-investment grade 50,684 — — 50,684 (79) Not rated 7,548 352,015 1,637 361,200 3,682 Total 124,181 1,106,871 12,574 1,243,626 1,422 Total credit default swaps sold ¥ 893,201 ¥ 3,578,045 ¥ 710,428 ¥ 5,181,674 ¥ 17,621 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, 2022
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, 2022 and September 30, 2022: March 31, September 30, 2022 (in billions) Standby letters of credit and financial guarantees ¥ 4,731 ¥ 5,333 Performance guarantees 3,828 4,341 Derivative instruments (1)(2) 39,982 42,782 Liabilities of trust accounts 12,262 14,842 Other 71 103 Total ¥ 60,874 ¥ 67,401 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, 2022 and September 30, 2022. 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, 2022: 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 ¥ 4,731 ¥ 4,575 ¥ 121 ¥ 31 ¥ 4 Performance guarantees 3,828 3,706 73 22 27 Total ¥ 8,559 ¥ 8,281 ¥ 194 ¥ 53 ¥ 31 At September 30, 2022: 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 ¥ 5,333 ¥ 5,186 ¥ 129 ¥ 17 ¥ 1 Performance guarantees 4,341 4,219 63 25 34 Total ¥ 9,674 ¥ 9,405 ¥ 192 ¥ 42 ¥ 35 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, 2022.
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, 2022 and September 30, 2022: March 31, September 30, 2022 (in billions) Commitments to extend credit ¥ 82,886 ¥ 87,999 Commercial letters of credit 908 1,088 Commitments to make investments 478 628

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	6 Months Ended
	Sep. 30, 2022
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, 2022 and September 30, 2022: Consolidated VIEs Consolidated assets At March 31, 2022: 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 ¥ 6,115,286 ¥ 114,679 ¥ 24,959 ¥ 30,114 ¥ 906,109 ¥ 5,016,254 ¥ 23,171 Investment funds 538,336 578 28,021 351,806 55,567 — 102,364 Special purpose entities created for structured financing 192,200 1,694 5,463 7,294 — 119,002 58,747 Repackaged instruments 342,771 4,798 — 134,387 111,711 88,209 3,666 Securitization of the MUFG Group’s assets 10,544,934 — 1,204 — — 10,526,124 17,606 Trust arrangements 8,581,448 — — 760,960 1,303,063 6,517,421 4 Other 67,650 465 3,910 22,110 15,684 3,496 21,985 Total consolidated assets before elimination 26,382,625 122,214 63,557 1,306,671 2,392,134 22,270,506 227,543 The amounts eliminated in consolidation (7,424,058) (115,486) (36,175) (54,363) (567,242) (6,619,044) (31,748) Total consolidated assets ¥ 18,958,567 ¥ 6,728 ¥ 27,382 ¥ 1,252,308 ¥ 1,824,892 ¥ 15,651,462 ¥ 195,795 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other liabilities (in millions) Asset-backed conduits ¥ 6,091,830 ¥ — ¥ 4,443,656 ¥ 1,337,938 ¥ 310,236 Investment funds 29,368 — — 6,497 22,871 Special purpose entities created for structured financing 101,814 — — 95,218 6,596 Repackaged instruments 345,606 — 22,791 248,535 74,280 Securitization of the MUFG Group’s assets 10,569,281 — — 10,102,964 466,317 Trust arrangements 8,581,731 7,063,850 683,346 — 834,535 Other 63,126 — 2,268 39,511 21,347 Total consolidated liabilities before elimination 25,782,756 7,063,850 5,152,061 11,830,663 1,736,182 The amounts eliminated in consolidation (15,116,977) (756) (2,590,224) (11,378,021) (1,147,976) The amount of liabilities with recourse to the general credit of the MUFG Group (10,081,747) (7,063,094) (2,522,255) (3,411) (492,987) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 584,032 ¥ — ¥ 39,582 ¥ 449,231 ¥ 95,219 Consolidated VIEs Consolidated assets At September 30, 2022: 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 ¥ 6,776,160 ¥ 56,072 ¥ 28,793 ¥ 123,767 ¥ 975,073 ¥ 5,470,418 ¥ 122,037 Investment funds 519,063 336 20,911 357,653 57,370 — 82,793 Special purpose entities created for structured financing 234,811 2,013 2,222 8,532 — 140,410 81,634 Repackaged instruments 387,076 14,334 — 163,928 160,751 47,219 844 Securitization of the MUFG Group’s assets 11,077,555 — 1,203 — — 11,058,713 17,639 Trust arrangements 7,102,194 — — 872,829 1,419,479 4,809,882 4 Other 57,420 492 3,726 14,606 15,544 3,193 19,859 Total consolidated assets before elimination 26,154,279 73,247 56,855 1,541,315 2,628,217 21,529,835 324,810 The amounts eliminated in consolidation (5,844,960) (56,517) (29,019) (143,087) (663,066) (4,924,590) (28,681) Total consolidated assets ¥ 20,309,319 ¥ 16,730 ¥ 27,836 ¥ 1,398,228 ¥ 1,965,151 ¥ 16,605,245 ¥ 296,129 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other (in millions) Asset-backed conduits ¥ 6,690,554 ¥ — ¥ 5,028,735 ¥ 1,313,354 ¥ 348,465 Investment funds 7,436 — — 7,293 143 Special purpose entities created for structured financing 117,495 — — 113,236 4,259 Repackaged instruments 391,007 — 18,154 267,440 105,413 Securitization of the MUFG Group’s assets 11,101,594 — — 10,604,347 497,247 Trust arrangements 7,102,377 5,449,185 702,270 — 950,922 Other 53,122 — 1,883 31,961 19,278 Total consolidated liabilities before elimination 25,463,585 5,449,185 5,751,042 12,337,631 1,925,727 The amounts eliminated in consolidation (15,850,216) (2,966) (2,647,997) (11,905,225) (1,294,028) The amount of liabilities with recourse to the general credit of the MUFG Group (9,097,535) (5,446,219) (3,063,374) (29,752) (558,190) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 515,834 ¥ — ¥ 39,671 ¥ 402,654 ¥ 73,509 Non-consolidated VIEs On-balance sheet assets On-balance sheet liabilities At March 31, 2022: Total assets Maximum exposure Total Trading account assets Investment securities Loans All other assets Total All other liabilities (in millions) Asset-backed conduits ¥ 27,325,711 ¥ 6,010,143 ¥ 4,858,210 ¥ — ¥ 1,756,122 ¥ 3,102,088 ¥ — ¥ 520 ¥ 520 Investment funds 112,262,392 3,352,266 2,622,407 328,963 622,967 1,628,737 41,740 4,507 4,507 Special purpose entities created for structured financing 42,312,881 4,829,867 3,275,008 234,384 20,854 3,012,252 7,518 25,424 25,424 Repackaged instruments 7,533,839 3,627,418 3,448,224 563,524 2,424,602 373,834 86,264 1,590 1,590 Other 74,119,635 3,474,163 2,402,341 170,859 7,552 2,139,751 84,179 28,128 28,128 Total ¥ 263,554,458 ¥ 21,293,857 ¥ 16,606,190 ¥ 1,297,730 ¥ 4,832,097 ¥ 10,256,662 ¥ 219,701 ¥ 60,169 ¥ 60,169 Non-consolidated VIEs On-balance sheet assets On-balance sheet liabilities At September 30, 2022: Total assets Maximum exposure Total Trading account assets Investment securities Loans All other Total All other liabilities (in millions) Asset-backed conduits ¥ 33,736,781 ¥ 7,289,764 ¥ 5,722,762 ¥ — ¥ 1,957,516 ¥ 3,765,246 ¥ — ¥ 3,928 ¥ 3,928 Investment funds 64,892,164 4,219,171 3,233,231 236,890 729,707 2,221,423 45,211 9,768 9,768 Special purpose entities created for structured financing 58,613,172 5,906,736 3,896,609 127,189 27,561 3,725,604 16,255 158,234 158,234 Repackaged instruments 9,383,684 4,574,788 4,256,915 950,867 2,724,026 472,931 109,091 5,225 5,225 Other 94,968,843 4,122,095 2,708,089 198,042 7,552 2,408,324 94,171 56,249 56,249 Total ¥ 261,594,644 ¥ 26,112,554 ¥ 19,817,606 ¥ 1,512,988 ¥ 5,446,362 ¥ 12,593,528 ¥ 264,728 ¥ 233,404 ¥ 233,404

Fees and Commissions Income (Ta

Fees and Commissions Income (Tables)	6 Months Ended
	Sep. 30, 2022
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, 2021 and 2022 are as follows: 2021 2022 (in millions) Fees and commissions on deposits ¥ 25,847 ¥ 27,784 Fees and commissions on remittances and transfers 83,029 73,627 Fees and commissions on foreign trading business 33,903 35,165 Fees and commissions on credit card business 99,738 111,697 Fees and commissions on security-related services 132,161 107,541 Fees and commissions on administration and management services for investment funds 145,660 133,070 Trust fees 66,120 66,832 Guarantee fees (1) 22,431 23,481 Insurance commissions 20,763 22,259 Fees and commissions on real estate business 20,392 21,984 Other fees and commissions (2) 148,021 164,202 Total ¥ 798,065 ¥ 787,642 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, 2022
Segment Reporting [Abstract]
Financial Information by Business Segment	Customer Business Digital Retail & Japanese Global Asset Global Total Global Other Total (in billions) Six months ended September 30, 2021: Net revenue: ¥ 372.4 ¥ 279.2 ¥ 265.8 ¥ 374.1 ¥ 176.0 ¥ 235.7 ¥ 1,703.2 ¥ 280.8 ¥ 23.0 ¥ 2,007.0 BK and TB (1) : 132.4 181.8 206.4 0.9 52.7 155.9 730.1 192.1 72.4 994.6 Net interest income 111.7 82.5 97.2 0.9 4.1 74.2 370.6 127.6 84.1 582.3 Net fees 19.3 89.8 87.2 — 48.5 74.3 319.1 (3.6) (22.9) 292.6 Other 1.4 9.5 22.0 — 0.1 7.4 40.4 68.1 11.2 119.7 Other than BK and TB 240.0 97.4 59.4 373.2 123.3 79.8 973.1 88.7 (49.4) 1,012.4 Operating expenses 278.3 245.5 156.9 263.9 118.3 140.8 1,203.7 119.6 49.4 1,372.7 Operating profit (loss) ¥ 94.1 ¥ 33.7 ¥ 108.9 ¥ 110.2 ¥ 57.7 ¥ 94.9 ¥ 499.5 ¥ 161.2 ¥ (26.4) ¥ 634.3 Six months ended September 30, 2022: Net revenue: ¥ 371.1 ¥ 281.9 ¥ 346.1 ¥ 447.4 ¥ 177.2 ¥ 345.2 ¥ 1,968.9 ¥ 360.6 ¥ 15.4 ¥ 2,344.9 BK and TB (1) : 126.6 192.7 278.5 27.3 53.0 247.2 925.3 225.6 25.2 1,176.1 Net interest income 107.7 90.5 153.1 27.3 5.3 114.2 498.1 580.5 81.4 1,160.0 Net fees 17.6 87.5 92.4 — 47.8 114.2 359.5 (8.6) (30.0) 320.9 Other 1.3 14.7 33.0 — (0.1) 18.8 67.7 (346.3) (26.2) (304.8) Other than BK and TB 244.5 89.2 67.6 420.1 124.2 98.0 1,043.6 135.0 (9.8) 1,168.8 Operating expenses 261.9 226.5 166.0 305.0 123.4 168.4 1,251.2 135.3 68.8 1,455.3 Operating profit (loss) ¥ 109.2 ¥ 55.4 ¥ 180.1 ¥ 142.4 ¥ 53.8 ¥ 176.8 ¥ 717.7 ¥ 225.3 ¥ (53.4) ¥ 889.6 Fixed assets (2) ¥ 147.5 ¥ 199.1 ¥ 157.1 ¥ 1.2 ¥ 13.7 ¥ 134.5 ¥ 653.1 ¥ 108.7 ¥ 541.5 ¥ 1,303.3 Increase in fixed assets (3) ¥ 15.2 ¥ 21.0 ¥ 17.7 ¥ 0.4 ¥ 3.2 ¥ 9.7 ¥ 67.2 ¥ 10.4 ¥ 9.6 ¥ 87.2 Depreciation (3) ¥ 5.1 ¥ 11.0 ¥ 18.0 ¥ 0.1 ¥ 2.8 ¥ 15.5 ¥ 52.5 ¥ 13.3 ¥ 8.8 ¥ 74.6 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 it corresponds to the U.S. GAAP amounts of 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 ¥1,422.4 billion are not allocated to each business segment when determining the allocation of management resources and assessing performance, therefore such amounts are not included in the table above. (3) These amounts are related to BK and TB.
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, 2021 and 2022 above to income before income tax expense shown in the accompanying condensed consolidated statements of operations and the total amount of premises and equipment-net, intangible assets-net and goodwill are as follows: Six months ended 2021 2022 (in billions) Operating profit: ¥ 634 ¥ 890 Reversal of credit losses 11 98 Foreign exchange losses—net (46) (165) Trading account profits (losses) —net 4 (1,670) Equity investment securities gains (losses)—net 289 (433) Debt investment securities gains (losses)—net (24) 199 Equity in earnings of equity method investees—net 216 187 Reversal of off-balance sheet credit instruments 6 12 Reversal of impairment of assets held for sale — 134 Loss on valuation adjustment for loans held for sale — (209) Other—net (39) (335) Income (loss) before income tax expense (benefit) ¥ 1,051 ¥ (1,292) Fixed assets: ¥ — ¥ 1,303 U.S. GAAP adjustments and other — 1,088 Premises and equipment-net, Intangible assets-net and Goodwill ¥ — ¥ 2,391

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Sep. 30, 2022
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, 2022 and September 30, 2022: At March 31, 2022 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 17,170,976 ¥ 13,998,654 ¥ 797,997 ¥ 31,967,627 Debt securities Japanese national government and Japanese government agency bonds 7,927,707 344,034 — 8,271,741 Japanese prefectural and municipal bonds — 132,097 — 132,097 Foreign government and official institution bonds 7,606,345 471,163 1,711 8,079,219 Corporate bonds 3,198 2,664,869 683 2,668,750 Residential mortgage-backed securities — 6,792,386 — 6,792,386 Commercial mortgage-backed securities — 7,402 — 7,402 Asset-backed securities — 1,210,875 315,231 1,526,106 Other debt securities — — 313,166 313,166 Commercial paper — 1,271,921 — 1,271,921 Equity securities (2) 1,633,726 1,103,907 167,206 2,904,839 Trading derivative assets 201,860 10,204,531 115,040 10,521,431 Interest rate contracts 121,584 5,268,790 54,309 5,444,683 Foreign exchange contracts 2,514 4,788,739 9,560 4,800,813 Equity contracts 77,762 47,207 25,979 150,948 Commodity contracts — 88 21,984 22,072 Credit derivatives — 99,707 2,808 102,515 Other (7) — — 400 400 Investment securities: Available-for-sale debt securities 32,672,696 12,912,810 212,936 45,798,442 Japanese national government and Japanese government agency bonds 30,989,319 3,338,445 — 34,327,764 Japanese prefectural and municipal bonds — 4,146,144 — 4,146,144 Foreign government and official institution bonds 1,683,377 936,076 11,890 2,631,343 Corporate bonds — 1,087,059 3,089 1,090,148 Residential mortgage-backed securities — 900,392 15 900,407 Asset-backed securities — 1,464,041 124,379 1,588,420 Other debt securities — 30,016 73,563 103,579 Commercial paper — 1,010,637 — 1,010,637 Equity securities 4,834,102 152,041 55,883 5,042,026 Marketable equity securities 4,834,102 152,041 — 4,986,143 Nonmarketable equity securities (3) — — 55,883 55,883 Other (4) 1,434,046 38,574 4,912 1,477,532 Assets held for sale 421,450 2,791,372 78,521 3,291,343 Investment securities 409,618 2,713,377 65,262 3,188,257 Other 11,832 77,995 13,259 103,086 Total ¥ 56,735,130 ¥ 40,097,982 ¥ 1,265,289 ¥ 98,098,401 At March 31, 2022 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 57,371 ¥ 2,455 ¥ — ¥ 59,826 Trading derivative liabilities 217,570 10,697,699 43,951 10,959,220 Interest rate contracts 19,841 5,615,033 16,816 5,651,690 Foreign exchange contracts 4,017 4,901,054 2,097 4,907,168 Equity contracts 193,712 80,806 2,559 277,077 Commodity contracts — — 22,029 22,029 Credit derivatives — 100,806 79 100,885 Other (7) — — 371 371 Obligation to return securities received as collateral (5) 6,670,482 155,733 — 6,826,215 Other (6) — 525,135 16,463 541,598 Liabilities held for sale 852 50,744 1,603 53,199 Other 852 50,744 1,603 53,199 Total ¥ 6,946,275 ¥ 11,431,766 ¥ 62,017 ¥ 18,440,058 At September 30, 2022 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 14,646,970 ¥ 15,320,546 ¥ 1,224,931 ¥ 31,192,447 Debt securities Japanese national government and Japanese government agency bonds 7,642,083 338,856 — 7,980,939 Japanese prefectural and municipal bonds — 133,683 — 133,683 Foreign government and official institution bonds 5,946,406 570,711 1,271 6,518,388 Corporate bonds 2,697 2,630,231 — 2,632,928 Residential mortgage-backed securities — 6,697,130 — 6,697,130 Commercial mortgage-backed securities — 13,296 — 13,296 Asset-backed securities — 1,463,922 696,378 2,160,300 Other debt securities — — 358,152 358,152 Commercial paper — 2,228,399 — 2,228,399 Equity securities (2) 1,055,784 1,244,318 169,130 2,469,232 Trading derivative assets 215,676 16,233,426 75,057 16,524,159 Interest rate contracts 131,421 7,017,623 14,920 7,163,964 Foreign exchange contracts 2,822 9,040,047 10,385 9,053,254 Equity contracts 81,433 94,454 27,090 202,977 Commodity contracts — 9 18,135 18,144 Credit derivatives — 81,293 3,870 85,163 Other (7) — — 657 657 Investment securities: Available-for-sale debt securities 30,609,047 12,360,105 272,294 43,241,446 Japanese national government and Japanese government agency bonds 28,582,282 3,400,486 — 31,982,768 Japanese prefectural and municipal bonds — 3,936,890 — 3,936,890 Foreign government and official institution bonds 2,026,765 1,002,513 — 3,029,278 Corporate bonds — 1,047,754 6,279 1,054,033 Residential mortgage-backed securities — 978,365 15 978,380 Asset-backed securities — 1,714,336 182,418 1,896,754 Other debt securities — 188,757 83,582 272,339 Commercial Paper — 91,004 — 91,004 Equity securities 4,360,147 133,468 68,620 4,562,235 Marketable equity securities 4,360,147 132,453 — 4,492,600 Nonmarketable equity securities (3) — 1,015 68,620 69,635 Other (4) 1,166,466 54,127 96,161 1,316,754 Assets held for sale 509,597 2,927,191 85,301 3,522,089 Investment securities 505,221 2,832,178 63,796 3,401,195 Other 4,376 95,013 21,505 120,894 Total ¥ 51,507,903 ¥ 47,028,863 ¥ 1,822,364 ¥ 100,359,130 At September 30, 2022 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 167,804 ¥ 8,681 ¥ — ¥ 176,485 Trading derivative liabilities 156,629 17,420,335 50,175 17,627,139 Interest rate contracts 25,850 8,323,000 23,447 8,372,297 Foreign exchange contracts 902 8,920,538 2,986 8,924,426 Equity contracts 129,877 72,175 5,254 207,306 Commodity contracts — — 18,161 18,161 Credit derivatives — 104,622 49 104,671 Other (7) — — 278 278 Obligation to return securities received as collateral (5) 6,460,545 217,604 73,595 6,751,744 Other (6) — 248,171 121,484 369,655 Liabilities held for sale 176 128,777 676 129,629 Other 176 128,777 676 129,629 Total ¥ 6,785,154 ¥ 18,023,568 ¥ 245,930 ¥ 25,054,652 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, 2022 were ¥179,278 million and those at September 30, 2022 were ¥218,043 million, respectively. The amounts of unfunded commitments related to these private equity funds at March 31, 2022 were ¥110,360 million, and those at September 30, 2022 were ¥178,960 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, 2022. (3) Excludes certain investments valued at net asset value of real estate funds and private equity and other funds whose fair values at March 31, 2022 were ¥30,142 million and ¥39,462 million, respectively, and those at September 30, 2022 were ¥31,224 million and ¥41,327 million, respectively. The amounts of unfunded commitments related to these real estate funds and private equity and other funds at March 31, 2022 were ¥1,011 million and nil, respectively, and those at September 30, 2022 were ¥1,154 million and nil, respectively. For the nature and details of these investments, see Note 31 to the consolidated financial statements for the fiscal year ended March 31, 2022. (4) Mainly comprises securities received as collateral that may be sold or repledged under securities lending transactions and money in trust for segregating cash deposited by customers on security transactions. (5) Included in Other liabilities. (6) Includes other short-term borrowings, long-term debt, bifurcated embedded derivatives carried at fair value and derivative liabilities designated as hedging instruments. (7) Includes certain derivatives such as earthquake derivatives.
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. Total gains (losses) Change in unrealized gains (losses) for assets and liabilities still held at September 30, 2021 March 31, 2021 Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, 2021 (10) (in millions) Assets Trading account assets: Trading securities (1) ¥ 756,413 ¥ 4,592 (2) ¥ — ¥ 268,583 ¥ — ¥ (71,430) ¥ (259,220) ¥ 660 ¥ — ¥ 699,598 ¥ 4,423 (2) Debt securities Foreign government and official institution bonds 1,280 210 — 28,427 — (28,469) (15) — — 1,433 (16) Corporate bonds 77 (69) — 125 — (100) — 650 — 683 (69) Residential mortgage-backed securities 1,000 (2) — 41,844 — (42,823) (19) — — — — Asset-backed securities 336,811 4,193 — 166,760 — — (251,750) — — 256,014 5,297 Other debt securities 277,635 2,317 — — — — — — — 279,952 2,317 Equity securities 139,610 (2,057) — 31,427 — (38) (7,436) 10 — 161,516 (3,106) Trading derivatives—net 25,027 17,711 (2) 1,113 36 (355) — (9,069) (463) (5,524) 28,476 15,161 (2) Interest rate contracts—net 14,179 3,916 653 — — — 2,634 8 198 21,588 3,764 Foreign exchange contracts—net 7,283 302 147 21 — — 773 (471) (5,857) 2,198 369 Equity contracts—net 623 13,378 319 15 — — (12,327) — 135 2,143 10,907 Commodity contracts—net (63) 16 (6) — — — — — — (53) 16 Credit derivatives—net 2,271 113 — — — — (149) — — 2,235 113 Other—net (9) 734 (14) — — (355) — — — — 365 (8) Investment securities: Available-for-sale debt securities 289,616 (618) (3) 22,746 118,700 — — (170,482) 15,653 (110) 275,505 7,452 (3) Foreign government and official institution bonds 16,718 — 1,104 4,805 — — (5,159) — — 17,468 (30) Corporate bonds 162 (326) 68 557 — — (57) 2,854 (110) 3,148 (261) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed securities 1,599 — 104 — — — (524) — — 1,179 9 Asset-backed securities 136,920 (292) 8,690 113,311 — — (141,823) — — 116,806 3,495 Other debt securities 134,202 — 12,780 27 — — (22,919) 12,799 (8) — 136,889 4,239 Equity securities 45,569 2,588 (3) — 3,602 — (1,317) — 130 (422) 50,150 1,614 (3) Nonmarketable equity securities 45,569 2,588 — 3,602 — (1,317) — 130 (422) 50,150 1,614 Other 18,784 (1,383) (7) 986 1,758 — (4,523) (57) — (21) 15,544 (1,382) (7) Total ¥ 1,135,409 ¥ 22,890 ¥ 24,845 ¥ 392,679 ¥ (355) ¥ (77,270) ¥ (438,828) ¥ 15,980 ¥ (6,077) ¥ 1,069,273 ¥ 27,268 Liabilities Other ¥ (2,212) ¥ (8,176) (4) ¥ (2,341) ¥ — ¥ 8,145 ¥ — ¥ (12,450) ¥ 6,809 (6) ¥ (7,233) (6) ¥ 3,576 ¥ (2,656) (4) Total ¥ (2,212) ¥ (8,176) ¥ (2,341) ¥ — ¥ 8,145 ¥ — ¥ (12,450) ¥ 6,809 ¥ (7,233) ¥ 3,576 ¥ (2,656) Total gains (losses) Change in unrealized gains (losses) for assets and liabilities still held at September 30, 2022 March 31, Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, 2022 (in millions) Assets Trading account assets: Trading securities (1) ¥ 797,997 ¥ 125,172 (2) ¥ — ¥ 333,302 ¥ — ¥ (21,408) ¥ (9,255) ¥ — ¥ (877) ¥ 1,224,931 ¥ 121,950 (2) Debt securities Foreign government and official institution bonds 1,711 57 — 5,712 — (5,765) (250) — (194) 1,271 5 Corporate bonds 683 — — — — — — — (683) — — Asset-backed securities 315,231 72,667 — 324,375 — (15,636) (259) — — 696,378 71,580 Other debt securities 313,166 44,986 — — — — — — — 358,152 44,986 Equity securities 167,206 7,462 — 3,215 — (7) (8,746) — — 169,130 5,379 Trading derivatives—net 71,089 (24,159) (2) 1,775 612 (334) — (19,889) 20,791 (25,003) 24,882 (21,160) (2) Interest rate contracts—net 37,493 (39,744) 30 — — — (1,901) 20,612 (5) (25,017) (5) (8,527) (33,999) Foreign exchange contracts—net 7,463 3,509 392 — — — (4,200) 179 56 7,399 1,705 Equity contracts—net 23,420 10,723 1,355 19 — — (13,639) — (42) 21,836 9,785 Commodity contracts—net (45) 26 (2) — — — (5) — — (26) 27 Credit derivatives—net 2,729 1,236 — — — — (144) — — 3,821 1,232 Other—net (9) 29 91 — 593 (334) — — — — 379 90 Investment securities: Available-for-sale debt securities 212,936 (1,096) (3) 30,227 170,610 — — (141,788) 1,405 — 272,294 23,794 (3) Foreign government and official institution bonds 11,890 — (925) 128 — — (11,093) — — — — Corporate bonds 3,089 (42) 210 1,824 — — (57) 1,255 — 6,279 165 Residential mortgage-backed securities 15 — — — — — — — — 15 — Asset-backed securities 124,379 (1,125) 21,490 168,312 — — (130,638) — — 182,418 14,106 Other debt securities 73,563 71 9,452 346 — — — 150 — 83,582 9,523 Equity securities 55,883 1,881 (3) 495 9,884 — (1,336) (806) 2,855 (236) 68,620 1,737 (3) Nonmarketable equity securities 55,883 1,881 495 9,884 — (1,336) (806) 2,855 (236) 68,620 1,737 Other 4,912 357 (7) (3) 89,081 — — (111) 1,925 — 96,161 357 (7) Assets held for sale 76,918 3,928 (11) 13,071 1,120 — (1,158) (9,254) — — 84,625 15,113 (11) Investment securities 65,262 (1,261) 10,114 93 — (1,158) (9,254) — — 63,796 7,456 Other 11,656 5,189 2,957 1,027 — — — — — 20,829 7,657 Total ¥ 1,219,735 ¥ 106,083 ¥ 45,565 ¥ 604,609 ¥ (334) ¥ (23,902) ¥ (181,103) ¥ 26,976 ¥ (26,116) ¥ 1,771,513 ¥ 141,791 Liabilities Obligation to return securities received as collateral ¥ — ¥ — ¥ — ¥ — ¥ 73,595 ¥ — ¥ — ¥ — ¥ — ¥ 73,595 ¥ — Other 16,463 54,070 (4) (10,269) — 54,527 — (19,043) 116,892 (6) (3,554) (6) 121,484 58,483 (4) Total ¥ 16,463 ¥ 54,070 ¥ (10,269) ¥ — ¥ 128,122 ¥ — ¥ (19,043) ¥ 116,892 ¥ (3,554) ¥ 195,079 ¥ 58,483 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 (loss), net of tax—net. (4) Included in Trading account profits (losses)—net. (5) For the six months ended September 30, 2022, 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 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 Fees and commissions income and Other non-interest income. (8) Transfers relate to the reclassification of certain securities. (9) Includes certain derivatives such as earthquake derivatives. (10) Fair value amounts in this table include those relating to transferred business of MUFG Union Bank, such as Available-for-sale debt securities of ¥67,266 million and Other of ¥12,053 million, which are included in Other assets, in the accompanying condensed consolidated balance sheets at September 30, 2021. See Note 2 for more information. (11) Included in Investment securities gains (losses)—net, Trading account profits (losses)—net, Fees and commissions income and Other comprehensive income (loss), net of tax—net.
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, 2022 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities, Investment securities and Other assets: Foreign government and official institution bonds ¥ 17,297 Return on equity method Probability of default 0.2 % ~ 1.8 % 0.5 % Recovery rate 35.0 % ~ 70.0 % 64.4 % Market-required return on capital 10.0% 10.0 % Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities 98,325 Discounted cash flow Recovery rate 100.0% 100.0 % 238,864 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 0.6 % ~ 1.0 % 0.9 % Prepayment rate 29.0% 29.0 % Probability of default 0.0 % ~ 85.4 % — (3) Recovery rate 69.9% 69.9 % Other debt securities 369,445 Discounted cash flow Liquidity premium 0.9 % ~ 3.2 % 2.8 % 58,677 Return on equity method Probability of default 0.1 % ~ 8.0 % 0.4 % Recovery rate 60.0 % ~ 90.0 % 82.7 % Market-required return on capital 8.0 % ~ 10.0 % 9.9 % At March 31, 2022 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net 35,195 Option model Correlation between interest rates 30.0 % ~ 62.9 % 45.6 % Correlation between interest rate and foreign exchange rate 15.3 % ~ 60.0 % 41.0 % Volatility 0.0 % ~ 100.0 % 61.9 % Foreign exchange contracts—net 7,463 Option model Correlation between interest rates 10.0 % ~ 70.0 % 51.5 % Correlation between interest rate and foreign exchange rate 0.0 % ~ 60.0 % 37.4 % Correlation between foreign exchange rates 50.0 % ~ 70.6 % 66.4 % Volatility 9.0 % ~ 21.7 % 13.3 % Equity contracts—net 772 Option model Correlation between foreign exchange rate and equity (58.4) % ~ 55.0 % 23.1 % Correlation between equities 2.4 % ~ 95.0 % 51.4 % Volatility 26.0 % ~ 38.0 % 31.8 % 22,648 Discounted cash flow Term of litigation 1.8 years 1.8 years At September 30, 2022 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities, Investment securities and Other assets: Foreign government and official institution bonds ¥ 5,835 Return on equity method Probability of default 0.6 % ~ 1.8 % 0.7 % Recovery rate 35.0 % ~ 80.0 % 70.9 % Market-required return on capital 8.0 % ~ 10.0 % 10.0 % Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities 97,896 Discounted cash flow Recovery rate 100.0% 100.0 % 612,726 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 1.0 % ~ 1.7 % 1.5 % Prepayment rate 18.1% 18.1 % Probability of default 0.0 % ~ 99.0 % — (3) Recovery rate 69.3% 69.3 % Other debt securities 423,731 Discounted cash flow Liquidity premium 0.8 % ~ 3.2 % 2.8 % 57,962 Return on equity method Probability of default 0.1 % ~ 2.3 % 0.4 % Recovery rate 70.0 % ~ 90.0 % 84.2 % Market-required return on capital 8.0 % ~ 10.0 % 9.2 % At September 30, 2022 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net (8,527) Option model Correlation between interest rates 30.0 % ~ 64.9 % 45.8 % Correlation between interest rate and foreign exchange rate 16.3 % ~ 60.0 % 41.1 % Volatility 58.5 % ~ 80.3 % 66.5 % Foreign exchange contracts—net 7,399 Option model Correlation between interest rates 30.0 % ~ 70.0 % 56.7 % Correlation between interest rate and foreign exchange rate 0.0 % ~ 60.0 % 38.0 % Correlation between foreign exchange rates 50.0 % 70.6 % 66.4 % Volatility 12.1 % ~ 25.0 % 17.0 % Equity contracts—net 3,308 Option model Correlation between foreign exchange rate and equity (58.4) % ~ 55.0 % 18.5 % Correlation between equities 4.8 % ~ 95.0 % 53.8 % Volatility 12.5 % ~ 37.0 % 22.1 % 18,528 Discounted cash flow Term of litigation 1.3 years 1.3 years Notes: (1) The fair value as of March 31, 2022 and September 30, 2022 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, 2022. (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, 2022.
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, 2022 and September 30, 2022: March 31, 2022 September 30, 2022 Level 1 Level 2 Level 3 Total carrying value Level 1 Level 2 Level 3 Total (in millions) Assets (3) Investment securities (1)(2) ¥ — ¥ 9,839 ¥ 11,158 ¥ 20,997 ¥ — ¥ 13,366 ¥ 12,744 ¥ 26,110 Loans 2,175 3,153 236,622 241,950 1,763 3,182 270,345 275,290 Loans held for sale — — 42,994 42,994 — — 73,124 73,124 Collateral dependent loans 2,175 3,153 193,628 198,956 1,763 3,182 197,221 202,166 Premises and equipment — — 17,301 17,301 — — 8,516 8,516 Intangible assets — — 359 359 — — 259 259 Other assets 11,880 — 17,282 29,162 178,592 — 17,861 196,453 Investments in equity method investees (1) 11,880 — 1,035 12,915 178,592 — 1,230 179,822 Other — — 16,247 16,247 — — 16,631 16,631 Assets held for sale — — 255,002 255,002 — — 5,973,073 5,973,073 Loan held for sale — — 255,002 255,002 — — 5,973,073 5,973,073 Total ¥ 14,055 ¥ 12,992 ¥ 537,724 ¥ 564,771 ¥ 180,355 ¥ 16,548 ¥ 6,282,798 ¥ 6,479,701 Notes: (1) Excludes certain investments valued at net asset value of ¥26,644 million and ¥29,070 million at March 31, 2022 and September 30, 2022, respectively. The unfunded commitments related to these investments are ¥22,197 million and ¥10,775 million at March 31, 2022 and September 30, 2022, 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, 2022. (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. (3) In addition to the above table, the assets and liabilities of MUFG Union Bank, which transferred to U.S. Bancorp, were reclassified as held for sale. As a result, the disposal group was measured at the lower of carrying value or fair value less costs to sell. The amount of the lower of carrying value or fair value less costs to sell are ¥1,992,632 million and ¥2,136,237 million as of March 31, 2022 and September 30, 2022, respectively and classified in Level 3 based on the transaction's expected consideration.
Losses (Gains) Recorded as a Result of Changes in Fair Value Measured on a Nonrecurring Basis	The following table presents losses (gains) 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, 2021 and 2022: Losses(gains) for the six months ended September 30, 2021 2022 (in millions) Investment securities ¥ 1,759 ¥ 505 Loans 15,777 (66) Loans held for sale 759 451 Collateral dependent loans 15,018 (517) Premises and equipment 1,660 2,579 Intangible assets 17,459 849 Other assets 17,500 50,761 Investments in equity method investees 7,020 46,928 Other 10,480 3,833 Assets held for sale — 209,107 Loan held for sale — 209,107 Total (1) ¥ 54,155 ¥ 263,735 Note: (1) In addition to the above table, the assets and liabilities of MUFG Union Bank, which transferred to U.S. Bancorp, were reclassified as held for sale. As a result, the disposal group was measured at the lower of carrying value or fair value less costs to sell. The impairment of assets held for sale of ¥134,141 million was recognized during the second half of the fiscal year ended March 31, 2022. However, the fair value less cost to sell exceeded the carrying value as of September 30, 2022, and the reversal of ¥134,141 million, which is included in Reversal of impairment of assets held for sale in the consolidated statements of operations through the six months ended September 30, 2022, was recognized.
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, 2021 and 2022 related to the eligible instruments for which the MUFG Group elected the fair value option: Six months ended September 30, 2021 2022 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 ¥ 41,324 ¥ 121,942 ¥ 163,266 ¥ (1,434,189) ¥ 2,339,864 ¥ 905,675 Total ¥ 41,324 ¥ 121,942 ¥ 163,266 ¥ (1,434,189) ¥ 2,339,864 ¥ 905,675 Financial liabilities: Other short-term borrowings (1) ¥ 4,383 ¥ — ¥ 4,383 ¥ (3,295) ¥ — ¥ (3,295) Long-term debt (1) 32,402 — 32,402 57,444 — 57,444 Total ¥ 36,785 ¥ — ¥ 36,785 ¥ 54,149 ¥ — ¥ 54,149 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, 2022 and September 30, 2022 for long-term debt instruments for which the fair value option has been elected: March 31, 2022 September 30, 2022 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 ¥ 511,851 ¥ 483,051 ¥ (28,800) ¥ 525,683 ¥ 450,403 ¥ (75,280) Total ¥ 511,851 ¥ 483,051 ¥ (28,800) ¥ 525,683 ¥ 450,403 ¥ (75,280)
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, 2022 and September 30, 2022: At March 31, 2022 Carrying amount Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 50,972 ¥ 50,972 ¥ 50,972 ¥ — ¥ — Interest-earning deposits in other banks 58,848 58,848 — 58,848 — Call loans and funds sold 1,316 1,316 — 1,316 — Receivables under resale agreements 12,503 12,503 — 12,503 — Receivables under securities borrowing transactions 4,496 4,496 — 4,496 — Investment securities 4,595 4,606 1,758 460 2,388 Loans, net of allowance for credit losses (1) 111,669 112,391 2 245 112,144 Other financial assets (2) 9,207 9,207 — 9,207 — Financial liabilities: Deposits Non-interest-bearing ¥ 36,496 ¥ 36,496 ¥ — ¥ 36,496 ¥ — Interest-bearing 188,112 188,080 — 188,080 — Total deposits 224,608 224,576 — 224,576 — Call money and funds purchased 2,416 2,416 — 2,416 — Payables under repurchase agreements 27,726 27,726 — 27,726 — Payables under securities lending transactions 1,022 1,022 — 1,022 — Due to trust account and other short-term borrowings 22,728 22,728 — 22,728 — Long-term debt 34,245 33,974 — 33,974 — Other financial liabilities 7,560 7,560 — 7,560 — At September 30, 2022 Carrying Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 51,856 ¥ 51,856 ¥ 51,856 ¥ — ¥ — Interest-earning deposits in other banks 49,828 49,828 — 49,828 — Call loans and funds sold 1,615 1,615 — 1,615 — Receivables under resale agreements 13,384 13,384 — 13,384 — Receivables under securities borrowing transactions 4,487 4,487 — 4,487 — Investment securities 13,847 13,630 7,219 3,748 2,663 Loans, net of allowance for credit losses (1) 121,673 122,041 2 285 121,754 Other financial assets (2) 10,244 10,244 — 10,244 — Financial liabilities: Deposits Non-interest-bearing ¥ 36,289 ¥ 36,289 ¥ — ¥ 36,289 ¥ — Interest-bearing 194,938 194,926 — 194,926 — Total deposits 231,227 231,215 — 231,215 — Call money and funds purchased 3,452 3,452 — 3,452 — Payables under repurchase agreements 34,638 34,638 — 34,638 — Payables under securities lending transactions 902 902 — 902 — Due to trust account and other short-term borrowings 12,776 12,776 — 12,776 — Long-term debt 37,014 35,981 — 35,927 54 Other financial liabilities 9,749 9,749 — 9,749 — 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 ¥3,067 billion and ¥3,722 billion at March 31, 2022 and September 30, 2022, respectively.

Investments in Equity Method _2

Investments in Equity Method Investees (Tables)	6 Months Ended
	Sep. 30, 2022
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, 2021 and 2022 are as follows: 2021 2022 (in billions) Net revenues ¥ 3,240 ¥ 3,499 Total non-interest expenses 2,193 2,582 Income from continuing operations before income taxes 1,037 899 Net income applicable to Morgan Stanley 793 687

Business Developments - Narrati

Business Developments - Narrative (Details) ¥ in Millions, $ in Millions	6 Months Ended				12 Months Ended
	Sep. 30, 2022 JPY (¥)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 JPY (¥)	Sep. 30, 2021 USD ($)	Mar. 31, 2022 JPY (¥)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on valuation adjustment for loans held for sale	¥ 209,107		¥ 0
Impairment reversal of assets held for sale	134,141		0
Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on valuation adjustment for loans held for sale			¥ 134,141		¥ 134,141
Impairment reversal of assets held for sale	¥ 134,141
Income (loss) from discontinued operation before income tax | $		$ 346,781		$ 70,029

Business Developments - Assets

Business Developments - Assets and liabilities (Details) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021
Assets held for sale:
Total	¥ 1,794,976		¥ 10,193,119
Liabilities held for sale:
Total	2,592,893		¥ 10,874,609
Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Assets held for sale:
Interest-earning deposits in other banks	1,251,032	¥ 1,110,633
Investment securities	3,401,195	3,188,257
Loans, net of allowance for credit losses	7,690,437	6,561,316
Other	1,073,879	761,361
Total	13,416,543	11,621,567
Liabilities held for sale:
Deposits	12,158,738	10,448,481
Other	1,591,815	709,179
Total	¥ 13,750,553	¥ 11,157,660

Investment Securities (Amortize

Investment Securities (Amortized Cost, Gross Unrealized Gains (Losses) and Fair Value of Investment Securities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	¥ 43,435,739	¥ 45,854,380
Available-for-sale debt securities, Gross unrealized gains	170,771	146,095
Available-for-sale debt securities, Gross unrealized losses	365,064	202,033
Available-for-sale debt securities	43,241,446	45,798,442
Total	43,241,446
Total	13,847,100	4,595,109
Held-to-maturity debt securities, Gross unrealized gains	13,389	26,096
Held-to-maturity debt securities, Gross unrealized losses	230,168	14,900
Held-to-maturity debt securities, Fair value	13,630,321	4,606,305
Total	13,847,100
Held-to-maturity debt securities, fair value before disposal group reclassification	13,630,321
Japanese national government and Japanese government agency bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	32,116,268	34,383,131
Available-for-sale debt securities, Gross unrealized gains	30,516	77,144
Available-for-sale debt securities, Gross unrealized losses	164,016	132,511
Available-for-sale debt securities	31,982,768	34,327,764
Total	7,362,800	1,808,312
Held-to-maturity debt securities, Gross unrealized gains	12,002	13,691
Held-to-maturity debt securities, Gross unrealized losses	18,138	3,633
Held-to-maturity debt securities, Fair value	7,356,664	1,818,370
Japanese prefectural and municipal bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	3,958,306	4,154,459
Available-for-sale debt securities, Gross unrealized gains	3,316	6,672
Available-for-sale debt securities, Gross unrealized losses	24,732	14,987
Available-for-sale debt securities	3,936,890	4,146,144
Total	569,921	175,072
Held-to-maturity debt securities, Gross unrealized gains	0	4
Held-to-maturity debt securities, Gross unrealized losses	3,227	1,116
Held-to-maturity debt securities, Fair value	566,694	173,960
Foreign government and official institution bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	3,192,143	2,671,797
Available-for-sale debt securities, Gross unrealized gains	1,809	8,586
Available-for-sale debt securities, Gross unrealized losses	164,674	49,040
Available-for-sale debt securities	3,029,278	2,631,343
Corporate bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,048,053	1,081,620
Available-for-sale debt securities, Gross unrealized gains	8,820	9,601
Available-for-sale debt securities, Gross unrealized losses	2,840	1,073
Available-for-sale debt securities	1,054,033	1,090,148
Residential mortgage-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	978,426	900,799
Available-for-sale debt securities, Gross unrealized gains	466	256
Available-for-sale debt securities, Gross unrealized losses	512	648
Available-for-sale debt securities	978,380	900,407
Total	3,223,324	234,652
Held-to-maturity debt securities, Gross unrealized gains	638	49
Held-to-maturity debt securities, Gross unrealized losses	179,931	8,778
Held-to-maturity debt securities, Fair value	3,044,031	225,923
Asset-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,773,902	1,547,098
Available-for-sale debt securities, Gross unrealized gains	123,378	41,544
Available-for-sale debt securities, Gross unrealized losses	526	222
Available-for-sale debt securities	1,896,754	1,588,420
Total	2,691,055	2,377,073
Held-to-maturity debt securities, Gross unrealized gains	749	12,352
Held-to-maturity debt securities, Gross unrealized losses	28,872	1,373
Held-to-maturity debt securities, Fair value	2,662,932	2,388,052
Other debt securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	277,638	104,869
Available-for-sale debt securities, Gross unrealized gains	2,464	2,243
Available-for-sale debt securities, Gross unrealized losses	7,763	3,533
Available-for-sale debt securities	272,339	103,579
Commercial paper
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	91,003	1,010,607
Available-for-sale debt securities, Gross unrealized gains	2	49
Available-for-sale debt securities, Gross unrealized losses	1	19
Available-for-sale debt securities	¥ 91,004	¥ 1,010,637

Investment Securities (Amorti_2

Investment Securities (Amortized Cost and Fair Value by Contractual Maturity) (Detail) ¥ in Millions	Sep. 30, 2022 JPY (¥)
Held-to-maturity debt securities, Amortized cost:
Due in one year or less	¥ 2,914
Due from one year to five years	4,301,835
Due from five years to ten years	5,305,014
Due after ten years	4,237,337
Total	13,847,100
Held-to-maturity debt securities, Fair value:
Due in one year or less	2,913
Due from one year to five years	4,309,074
Due from five years to ten years	5,274,804
Due after ten years	4,043,530
Total	13,630,321
Available-for-sale debt securities, Fair value:
Due in one year or less	23,495,982
Due from one year to five years	11,570,005
Due from five years to ten years	4,409,181
Due after ten years	3,766,278
Total	¥ 43,241,446

Investment Securities (Narrativ

Investment Securities (Narrative) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Investment Securities [Line Items]
Gross realized gains on sales of Available-for-sale debt securities	¥ 82,340	¥ 61,902
Gross realized losses on sales of Available-for-sale debt securities	72,520	¥ 18,169
Corporate bonds
Investment Securities [Line Items]
Other-than-temporary impairment ("OTTI") losses of debt securities included in Investment securities gains (losses)—net	¥ 299,478

Investment Securities (Investme

Investment Securities (Investments by Length and Category in Continuous Loss Position) (Detail) ¥ in Millions	Sep. 30, 2022 JPY (¥) Securities	Mar. 31, 2022 JPY (¥) Securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 18,136,808	¥ 27,939,292
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	232,993	177,600
Available-for-sale debt securities, Fair value, 12 months or more	2,111,364	1,039,235
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	132,071	24,433
Available-for-sale debt securities, Fair value, Total	20,248,172	28,978,527
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 365,064	¥ 202,033
Available-for-sale debt securities, Number of securities | Securities	1,926	1,730,000,000
Japanese national government and Japanese government agency bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 12,347,744	¥ 22,998,960
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	91,378	126,516
Available-for-sale debt securities, Fair value, 12 months or more	1,024,602	353,932
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	72,638	5,995
Available-for-sale debt securities, Fair value, Total	13,372,346	23,352,892
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 164,016	¥ 132,511
Available-for-sale debt securities, Number of securities | Securities	481	486,000,000
Japanese prefectural and municipal bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 2,812,129	¥ 2,430,603
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	23,102	14,864
Available-for-sale debt securities, Fair value, 12 months or more	81,348	31,139
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	1,630	123
Available-for-sale debt securities, Fair value, Total	2,893,477	2,461,742
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 24,732	¥ 14,987
Available-for-sale debt securities, Number of securities | Securities	1,015	926,000,000
Foreign government and official institution bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 2,132,089	¥ 1,376,267
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	114,875	31,470
Available-for-sale debt securities, Fair value, 12 months or more	310,779	167,446
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	49,799	17,570
Available-for-sale debt securities, Fair value, Total	2,442,868	1,543,713
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 164,674	¥ 49,040
Available-for-sale debt securities, Number of securities | Securities	127	87,000,000
Corporate bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 468,706	¥ 427,739
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	2,569	925
Available-for-sale debt securities, Fair value, 12 months or more	103,289	94,364
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	271	148
Available-for-sale debt securities, Fair value, Total	571,995	522,103
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 2,840	¥ 1,073
Available-for-sale debt securities, Number of securities | Securities	229	173,000,000
Residential mortgage-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 42,503	¥ 178,857
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	1	58
Available-for-sale debt securities, Fair value, 12 months or more	546,372	391,265
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	511	590
Available-for-sale debt securities, Fair value, Total	588,875	570,122
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 512	¥ 648
Available-for-sale debt securities, Number of securities | Securities	13	12,000,000
Asset-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 162,398	¥ 115,695
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	526	222
Available-for-sale debt securities, Fair value, 12 months or more	0	0
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	0	0
Available-for-sale debt securities, Fair value, Total	162,398	115,695
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 526	¥ 222
Available-for-sale debt securities, Number of securities | Securities	12	12,000,000
Other debt securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 136,238	¥ 44,128
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	541	3,526
Available-for-sale debt securities, Fair value, 12 months or more	44,974	1,089
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	7,222	7
Available-for-sale debt securities, Fair value, Total	181,212	45,217
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 7,763	¥ 3,533
Available-for-sale debt securities, Number of securities | Securities	46	4,000,000
Commercial paper
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 35,001	¥ 367,043
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	1	19
Available-for-sale debt securities, Fair value, 12 months or more	0	0
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	0	0
Available-for-sale debt securities, Fair value, Total	35,001	367,043
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 1	¥ 19
Available-for-sale debt securities, Number of securities | Securities	3	30,000,000

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, 2022	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Net gains (losses) recognized during the period	¥ (203,007)	¥ 289,949
Net losses recognized during the period on equity securities sold during the period	(214)	(1,913)
Net unrealized gains (losses) recognized during the reporting period still held at the reporting date	¥ (202,793)	¥ 291,862

Investment Securities (Carrying

Investment Securities (Carrying Value of Nonmarketable Equity Securities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Nonmarketable equity securities | Measurement Alternative
Investment Securities [Line Items]
Measurement alternative balance	¥ 335,976	¥ 310,570

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, 2022	Sep. 30, 2021	Mar. 31, 2022
Investment Securities [Line Items]
Measurement alternative impairment losses	¥ (5,155)	¥ (2,834)
Measurement alternative downward changes for observable prices	(440)	0
Measurement alternative upward changes for observable prices	5,090	¥ 1,075
Cumulative impairment losses	17,383		¥ 12,354
Cumulative downward changes for observable prices	1,393		954
Cumulative upward changes for observable prices	¥ 59,160		¥ 54,223

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, 2022	Mar. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	¥ 123,308,764	¥ 113,471,623
Loans Held for Sale	704,910	514,109
Past Due 90 Days and Accruing	13,798	6,620
Unearned income, unamortized premiums—net and deferred loan fees—net	(379,943)	(322,230)
Total	122,928,821	113,149,393
1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	406,132	210,279
Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	301,473	207,798
Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	707,605	418,077
Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	121,896,249	112,539,437
Residential
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	13,113,393	13,301,505
Loans Held for Sale	0	0
Past Due 90 Days and Accruing	3,836	3,360
Residential | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	32,082	32,078
Residential | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	12,673	13,598
Residential | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	44,755	45,676
Residential | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	13,068,638	13,255,829
Card
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	465,440	464,266
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	11,514	10,250
Card | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	27,461	26,818
Card | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	38,975	37,068
Card | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	426,465	427,198
MUAH
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	3,104,066	2,812,969
Loans Held for Sale	116,669	70,841
Past Due 90 Days and Accruing	0	0
MUAH | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	3,453	625
MUAH | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	0	0
MUAH | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	3,453	625
MUAH | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	2,983,944	2,741,503
Krungsri
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	7,973,716	6,822,765
Loans Held for Sale	3,819	0
Past Due 90 Days and Accruing	0	0
Krungsri | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	184,445	115,636
Krungsri | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	132,236	126,494
Krungsri | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	316,681	242,130
Krungsri | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	7,653,216	6,580,635
Other
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	1,271,793	1,045,121
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	14,071	21,729
Other | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	25,152	21,152
Other | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	39,223	42,881
Other | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	1,232,570	1,002,240
Domestic | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	54,952,802	54,044,718
Loans Held for Sale	55,879	69,257
Past Due 90 Days and Accruing	2,458	3,260
Domestic | Commercial | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	9,366	12,556
Domestic | Commercial | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	15,786	9,138
Domestic | Commercial | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	25,152	21,694
Domestic | Commercial | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	54,871,771	53,953,767
Foreign | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	42,427,554	34,980,279
Loans Held for Sale	528,543	374,011
Past Due 90 Days and Accruing	7,504	0
Foreign | Commercial | 1-3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	151,201	17,405
Foreign | Commercial | Greater Than 3 months
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	88,165	10,598
Foreign | Commercial | Total Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	239,366	28,003
Foreign | Commercial | Current
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	¥ 41,659,645	¥ 34,578,265

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses (Narrative) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Financing Receivable, Allowance for Credit Losses [Line Items]
Accounts receivable: Other	¥ 1,175,813		¥ 1,187,311
Accrued interest receivable	374,222		246,271
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Significant sales of loans	¥ 1,295,000	¥ 850,000
Commercial | Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans contractually past due before being placed on nonaccrual status, in month	1 month
Loans contractually past due before becoming defaulted loans, period	1 month
Commercial | Maximum
Financing Receivable, Allowance for Credit Losses [Line Items]
Temporary extensions of maturity dates to nonaccrual loans, in day	90 days
Card | 1-3 months
Financing Receivable, Allowance for Credit Losses [Line Items]
Accounts receivable: Other	¥ 2,990		2,581
Card | Greater Than 3 months
Financing Receivable, Allowance for Credit Losses [Line Items]
Accounts receivable: Other	3,104		2,902
Card | Total Past Due
Financing Receivable, Allowance for Credit Losses [Line Items]
Accounts receivable: Other	¥ 6,094		¥ 5,483
Card | Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans contractually past due before being placed on nonaccrual status, in month	3 months
Loans contractually past due before becoming defaulted loans, period	1 month
MUAH
Financing Receivable, Allowance for Credit Losses [Line Items]
Significant sales of loans	¥ 337,000	¥ 519,000
MUAH | Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans contractually past due before being placed on nonaccrual status, in month	3 months
Loans contractually past due before becoming defaulted loans, period	60 days
Krungsri | Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans contractually past due before being placed on nonaccrual status, in month	3 months
Loans contractually past due before becoming defaulted loans, period	6 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 contractually past due before becoming defaulted loans, period	6 months
Residential | Maximum
Financing Receivable, Allowance for Credit Losses [Line Items]
Temporary extensions of maturity dates to nonaccrual loans, in day	90 days

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses (Nonaccrual Status of Loans by Class) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	¥ 981,149	¥ 1,184,829
Nonaccrual loans not requiring an allowance for credit losses	200,953	201,166
Loans held for sale placed on nonaccrual status	45,177	7,946
Commercial | Domestic
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	343,483	633,768
Nonaccrual loans not requiring an allowance for credit losses	106,692	109,919
Commercial | Foreign
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	293,576	224,566
Nonaccrual loans not requiring an allowance for credit losses	84,058	84,837
Residential
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	51,364	56,175
Nonaccrual loans not requiring an allowance for credit losses	3,773	3,579
Card
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	64,498	62,578
Nonaccrual loans not requiring an allowance for credit losses	0	0
MUAH
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	12,743	15,349
Nonaccrual loans not requiring an allowance for credit losses	3,564	0
Krungsri
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	182,730	165,775
Nonaccrual loans not requiring an allowance for credit losses	2,859	2,824
Other
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	32,755	26,618
Nonaccrual loans not requiring an allowance for credit losses	¥ 7	¥ 7

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, 2022	Sep. 30, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	¥ 18,052	¥ 9,989
Commercial | Domestic
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	10,033	2,004
Commercial | Foreign
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	2,247	2,301
Residential
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	378	422
Card
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	9	13
MUAH
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	51	377
Krungsri
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	3,250	2,950
Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Recognized interest income	¥ 2,084	¥ 1,922

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses (Troubled Debt Restructurings by Class) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	¥ 139,227	¥ 147,777
Troubled debt restructurings, Post-modification outstanding recorded investment	138,753	146,173
Troubled debt restructurings that subsequently defaulted, Recorded Investment	6,364	20,884
Commercial | Domestic
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	37,312	94,584
Troubled debt restructurings, Post-modification outstanding recorded investment	37,312	93,578
Troubled debt restructurings that subsequently defaulted, Recorded Investment	1,830	7,048
Commercial | Foreign
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	17,057	529
Troubled debt restructurings, Post-modification outstanding recorded investment	17,057	529
Troubled debt restructurings that subsequently defaulted, Recorded Investment	0	8,447
Residential
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	8,697	13,707
Troubled debt restructurings, Post-modification outstanding recorded investment	8,697	13,707
Troubled debt restructurings that subsequently defaulted, Recorded Investment	95	117
Card
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	11,408	11,485
Troubled debt restructurings, Post-modification outstanding recorded investment	10,934	10,877
Troubled debt restructurings that subsequently defaulted, Recorded Investment	1,410	1,269
MUAH
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	8,216	14,233
Troubled debt restructurings, Post-modification outstanding recorded investment	8,216	14,243
Troubled debt restructurings that subsequently defaulted, Recorded Investment	0	258
Krungsri
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	48,899	8,135
Troubled debt restructurings, Post-modification outstanding recorded investment	48,899	8,135
Troubled debt restructurings that subsequently defaulted, Recorded Investment	1,827	2,104
Other
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	7,638	5,104
Troubled debt restructurings, Post-modification outstanding recorded investment	7,638	5,104
Troubled debt restructurings that subsequently defaulted, Recorded Investment	¥ 1,202	¥ 1,641

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses (Credit Quality Indicators of Loans and Year of Origination by Class) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	¥ 123,308,764	¥ 113,471,623
Commercial | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	21,731,378	27,445,726
2020	14,061,406	10,850,943
2019	9,755,525	7,634,337
2018	6,866,603	6,509,048
2017	5,717,420	3,924,194
Prior	11,808,586	8,827,987
Revolving loans amortized cost basis	26,853,224	23,380,258
Revolving loans converted to term loans amortized cost basis	1,792	9,236
Total	96,795,934	88,581,729
Commercial | Domestic
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	54,952,802	54,044,718
Commercial | Domestic | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	14,196,806	19,038,698
2020	7,772,035	7,937,529
2019	7,284,193	5,003,439
2018	4,496,355	4,499,174
2017	4,032,020	2,817,819
Prior	8,760,989	6,639,931
Revolving loans amortized cost basis	8,354,525	8,038,871
Revolving loans converted to term loans amortized cost basis	0	0
Total	54,896,923	53,975,461
Commercial | Domestic | Normal | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	14,004,153	18,756,933
2020	7,610,769	7,646,272
2019	7,031,429	4,669,784
2018	4,325,773	4,335,640
2017	3,897,211	2,698,956
Prior	8,287,409	6,205,070
Revolving loans amortized cost basis	8,064,659	7,686,772
Revolving loans converted to term loans amortized cost basis	0	0
Total	53,221,403	51,999,427
Commercial | Domestic | Close Watch | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	176,407	257,276
2020	144,563	266,311
2019	224,012	167,387
2018	139,091	150,834
2017	125,667	104,047
Prior	342,051	307,367
Revolving loans amortized cost basis	261,505	306,193
Revolving loans converted to term loans amortized cost basis	0	0
Total	1,413,296	1,559,415
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]
2021	16,246	24,489
2020	16,703	24,946
2019	28,752	166,268
2018	31,491	12,700
2017	9,142	14,816
Prior	131,529	127,494
Revolving loans amortized cost basis	28,361	45,906
Revolving loans converted to term loans amortized cost basis	0	0
Total	262,224	416,619
Commercial | Foreign
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	42,427,554	34,980,279
Commercial | Foreign | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	7,534,572	8,407,028
2020	6,289,371	2,913,414
2019	2,471,332	2,630,898
2018	2,370,248	2,009,874
2017	1,685,400	1,106,375
Prior	3,047,597	2,188,056
Revolving loans amortized cost basis	18,498,699	15,341,387
Revolving loans converted to term loans amortized cost basis	1,792	9,236
Total	41,899,011	34,606,268
Commercial | Foreign | Normal | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	7,362,851	8,250,729
2020	6,194,146	2,814,362
2019	2,375,072	2,501,594
2018	2,237,446	1,881,532
2017	1,580,629	1,031,105
Prior	2,806,341	2,031,243
Revolving loans amortized cost basis	18,251,401	15,089,995
Revolving loans converted to term loans amortized cost basis	1,792	1,912
Total	40,809,678	33,602,472
Commercial | Foreign | Close Watch | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	156,232	149,502
2020	81,045	90,355
2019	79,510	73,253
2018	62,350	110,170
2017	81,173	36,274
Prior	138,357	93,622
Revolving loans amortized cost basis	213,865	223,203
Revolving loans converted to term loans amortized cost basis	0	7,324
Total	812,532	783,703
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]
2021	15,489	6,797
2020	14,180	8,697
2019	16,750	56,051
2018	70,452	18,172
2017	23,598	38,996
Prior	102,899	63,191
Revolving loans amortized cost basis	33,433	28,189
Revolving loans converted to term loans amortized cost basis	0	0
Total	276,801	220,093
Residential
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	13,113,393	13,301,505
Residential | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	378,525	782,446
2020	764,610	641,706
2019	625,443	976,736
2018	948,207	866,282
2017	838,727	900,959
Prior	9,531,992	9,104,691
Revolving loans amortized cost basis	25,889	28,685
Revolving loans converted to term loans amortized cost basis	0	0
Total	13,113,393	13,301,505
Residential | Accrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	378,250	782,314
2020	764,493	641,499
2019	625,257	976,162
2018	947,542	865,761
2017	838,186	900,120
Prior	9,486,011	9,054,326
Revolving loans amortized cost basis	23,820	26,460
Revolving loans converted to term loans amortized cost basis	0	0
Total	13,063,559	13,246,642
Residential | Nonaccrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	275	132
2020	117	207
2019	186	574
2018	665	521
2017	541	839
Prior	45,981	50,365
Revolving loans amortized cost basis	2,069	2,225
Revolving loans converted to term loans amortized cost basis	0	0
Total	49,834	54,863
Card
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	465,440	464,266
Card | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	6	19
2020	69	106
2019	179	182
2018	196	175
2017	185	276
Prior	651	437
Revolving loans amortized cost basis	399,127	400,552
Revolving loans converted to term loans amortized cost basis	65,027	62,519
Total	465,440	464,266
Card | Accrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	0	1
2020	2	8
2019	9	8
2018	6	9
2017	9	13
Prior	44	41
Revolving loans amortized cost basis	386,707	387,648
Revolving loans converted to term loans amortized cost basis	14,165	13,960
Total	400,942	401,688
Card | Nonaccrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	6	18
2020	67	98
2019	170	174
2018	190	166
2017	176	263
Prior	607	396
Revolving loans amortized cost basis	12,420	12,904
Revolving loans converted to term loans amortized cost basis	50,862	48,559
Total	64,498	62,578
MUAH
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	3,104,066	2,812,969
MUAH | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	186,266	364,236
2020	322,804	306,134
2019	249,301	147,821
2018	125,449	62,455
2017	54,403	50,264
Prior	104,901	122,149
Revolving loans amortized cost basis	1,944,273	1,689,069
Revolving loans converted to term loans amortized cost basis	0	0
Total	2,987,397	2,742,128
MUAH | Pass | Credit Quality Based on Internal Credit Ratings | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	185,309	357,334
2020	311,870	298,658
2019	241,100	126,083
2018	100,027	48,653
2017	43,605	43,938
Prior	96,564	117,778
Revolving loans amortized cost basis	1,913,247	1,642,946
Revolving loans converted to term loans amortized cost basis	0	0
Total	2,891,722	2,635,390
MUAH | Special Mention | Credit Quality Based on Internal Credit Ratings | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	957	3,106
2020	4,100	0
2019	4,237	20,013
2018	19,955	2,415
2017	957	5,981
Prior	7,107	805
Revolving loans amortized cost basis	19,272	33,471
Revolving loans converted to term loans amortized cost basis	0	0
Total	56,585	65,791
MUAH | Classified | Credit Quality Based on Internal Credit Ratings | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	0	3,796
2020	6,834	7,476
2019	3,964	1,725
2018	5,467	11,387
2017	9,841	345
Prior	1,230	3,566
Revolving loans amortized cost basis	11,754	12,652
Revolving loans converted to term loans amortized cost basis	0	0
Total	39,090	40,947
Krungsri
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	7,973,716	6,822,765
Krungsri | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	1,023,497	1,350,265
2020	1,252,083	964,094
2019	887,601	901,955
2018	857,126	680,090
2017	640,851	329,847
Prior	755,991	481,981
Revolving loans amortized cost basis	2,537,333	2,099,727
Revolving loans converted to term loans amortized cost basis	15,415	14,806
Total	7,969,897	6,822,765
Krungsri | Performing | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	962,151	1,297,054
2020	1,159,818	891,374
2019	795,463	788,828
2018	710,639	573,840
2017	525,345	270,783
Prior	588,907	363,905
Revolving loans amortized cost basis	2,375,533	1,961,481
Revolving loans converted to term loans amortized cost basis	0	0
Total	7,117,856	6,147,265
Krungsri | Under-Performing | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	48,126	42,326
2020	71,383	58,084
2019	76,313	90,519
2018	122,984	80,841
2017	95,458	45,982
Prior	117,792	78,690
Revolving loans amortized cost basis	137,255	113,283
Revolving loans converted to term loans amortized cost basis	0	0
Total	669,311	509,725
Krungsri | Non-Performing | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	13,220	10,885
2020	20,882	14,636
2019	15,825	22,608
2018	23,503	25,409
2017	20,048	13,082
Prior	49,292	39,386
Revolving loans amortized cost basis	24,545	24,963
Revolving loans converted to term loans amortized cost basis	15,415	14,806
Total	182,730	165,775
Other
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	1,271,793	1,045,121
Other | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	358,527	400,482
2020	268,081	143,336
2019	107,671	85,496
2018	58,442	40,445
2017	27,983	35,346
Prior	23,956	0
Revolving loans amortized cost basis	427,133	340,016
Revolving loans converted to term loans amortized cost basis	0	0
Total	1,271,793	1,045,121
Other | Accrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	356,954	398,744
2020	261,290	136,317
2019	104,026	83,278
2018	56,766	38,609
2017	26,530	32,934
Prior	22,585	0
Revolving loans amortized cost basis	410,887	328,621
Revolving loans converted to term loans amortized cost basis	0	0
Total	1,239,038	1,018,503
Other | Nonaccrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
2021	1,573	1,738
2020	6,791	7,019
2019	3,645	2,218
2018	1,676	1,836
2017	1,453	2,412
Prior	1,371	0
Revolving loans amortized cost basis	16,246	11,395
Revolving loans converted to term loans amortized cost basis	0	0
Total	¥ 32,755	¥ 26,618

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses (Changes in Allowance for Credit Losses by Portfolio Segment) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	¥ 1,470,701	¥ 1,348,391
Provision for (reversal of) credit losses	(97,785)	(10,838)
Charge-offs	211,367	132,040
Recoveries collected	29,825	27,730
Net charge-offs	181,542	104,310
Less: Loans in transferred business of MUFG Union Bank		(72,098)
Other	65,863	10,313
Balance at end of period	1,257,237	1,171,458
Commercial
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	934,086	734,577
Provision for (reversal of) credit losses	(164,085)	(36,415)
Charge-offs	130,524	36,033
Recoveries collected	6,096	6,360
Net charge-offs	124,428	29,673
Less: Loans in transferred business of MUFG Union Bank		0
Other	12,307	(17)
Balance at end of period	657,880	668,472
Residential
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	69,887	82,893
Provision for (reversal of) credit losses	(5,867)	(6,943)
Charge-offs	110	1,399
Recoveries collected	11	10
Net charge-offs	99	1,389
Less: Loans in transferred business of MUFG Union Bank		0
Other	0	0
Balance at end of period	63,921	74,561
Card
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	40,768	44,217
Provision for (reversal of) credit losses	10,326	7,595
Charge-offs	8,867	8,704
Recoveries collected	431	691
Net charge-offs	8,436	8,013
Less: Loans in transferred business of MUFG Union Bank		0
Other	0	0
Balance at end of period	42,658	43,799
MUAH
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	30,365	131,755
Provision for (reversal of) credit losses	4,792	(38,568)
Charge-offs	10,083	9,459
Recoveries collected	2,270	3,335
Net charge-offs	7,813	6,124
Less: Loans in transferred business of MUFG Union Bank		(72,098)
Other	3,191	7,815
Balance at end of period	30,535	22,780
Krungsri
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	322,386	293,396
Provision for (reversal of) credit losses	39,380	42,836
Charge-offs	38,792	46,405
Recoveries collected	12,028	11,741
Net charge-offs	26,764	34,664
Less: Loans in transferred business of MUFG Union Bank		0
Other	40,167	(141)
Balance at end of period	375,169	301,427
Other
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	73,209	61,553
Provision for (reversal of) credit losses	17,669	20,657
Charge-offs	22,991	30,040
Recoveries collected	8,989	5,593
Net charge-offs	14,002	24,447
Less: Loans in transferred business of MUFG Union Bank		0
Other	10,198	2,656
Balance at end of period	¥ 87,074	¥ 60,419

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, 2022	Mar. 31, 2022	Sep. 30, 2021	Mar. 31, 2021
Goodwill [Roll Forward]
Goodwill, at beginning of period	¥ 1,118,889	¥ 1,113,673	¥ 1,094,344
Accumulated impairment losses, at beginning of period	(723,492)	(723,492)	(723,492)
Goodwill, Net at beginning of period	303,611	300,058	370,852
Foreign currency translation adjustments and other	54,093		19,329
Goodwill, at end of period	1,172,982	1,118,889	1,113,673	¥ 1,094,344
Accumulated impairment losses, at end of period	(723,492)	(723,492)	(723,492)	(723,492)
Goodwill, Net at end of period	341,022	303,611	300,058	370,852
Goodwill, fully impaired before April 1, 2021	1,900,019
Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Goodwill [Roll Forward]
Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank	¥ (108,468)	¥ (91,786)	¥ (90,123)	¥ 0

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, 2022	Mar. 31, 2022
Intangible assets subject to amortization:
Finite-lived intangible assets	¥ 1,194,276	¥ 1,140,550
Intangible assets not subject to amortization:
Indefinite-lived intangible assets	8,089	8,051
Total	1,202,365	1,148,601
Software
Intangible assets subject to amortization:
Finite-lived intangible assets	822,524	788,471
Customer relationships
Intangible assets subject to amortization:
Finite-lived intangible assets	260,478	246,645
Core deposit intangibles
Intangible assets subject to amortization:
Finite-lived intangible assets	57,587	55,087
Trade names
Intangible assets subject to amortization:
Finite-lived intangible assets	41,807	40,012
Other
Intangible assets subject to amortization:
Finite-lived intangible assets	¥ 11,880	¥ 10,335

Lease Transactions (Detail)

Lease Transactions (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Sales type and direct financing leases:
Finance income on net investment	¥ 61,812	¥ 59,369
Operating leases:
Lease income	1,799	1,843
Total	¥ 63,611	¥ 61,212

Pledged Assets and Collateral_2

Pledged Assets and Collateral (Assets Mortgaged, Pledged, or Otherwise Subject to Lien) (Detail) ¥ in Millions	Sep. 30, 2022 JPY (¥)
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 45,971,375
Trading account securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	10,660,801
Investment securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	21,525,456
Loans
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	13,533,656
Other
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 251,462

Pledged Assets and Collateral_3

Pledged Assets and Collateral (Pledged Assets Classified by Type of Liabilities) (Detail) ¥ in Millions	Sep. 30, 2022 JPY (¥)
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 45,971,375
Deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	243,462
Payables under repurchase agreements and securities lending transactions
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	24,518,082
Other short-term borrowings and long-term debt
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	21,131,555
Other
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 78,276

Pledged Assets and Collateral_4

Pledged Assets and Collateral (Narrative) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Financial Instruments Pledged as Collateral [Abstract]
Investment securities pledged for acting as a collection agent of public funds	¥ 24,148,629
Cash collateral pledged for derivative transactions included in Other assets	3,406,298	¥ 2,893,178
Cash collateral received for derivative transactions included in Other liabilities	¥ 2,198,569	¥ 1,017,580

Severance Indemnities and Pen_3

Severance Indemnities and Pension Plans (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Foreign offices and subsidiaries | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the period	¥ 8,281	¥ 9,276
Interest cost on projected benefit obligation	7,667	5,575
Expected return on plan assets	(18,381)	(16,254)
Amortization of net actuarial loss (gain)	3,896	3,215
Amortization of prior service cost	(1,607)	(1,343)
Gain on settlements and curtailment	0	0
Net periodic benefit cost (income)	(144)	469
Foreign offices and subsidiaries | Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the period	56	100
Interest cost on projected benefit obligation	340	264
Expected return on plan assets	(1,338)	(1,182)
Amortization of net actuarial loss (gain)	(77)	73
Amortization of prior service cost	(212)	(189)
Gain on settlements and curtailment	0	0
Net periodic benefit cost (income)	(1,231)	(934)
Domestic subsidiaries | Pension Benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the period	20,580	22,196
Interest cost on projected benefit obligation	7,131	6,081
Expected return on plan assets	(42,328)	(41,132)
Amortization of net actuarial loss (gain)	346	137
Amortization of prior service cost	(650)	(629)
Gain on settlements and curtailment	(2,121)	(2,632)
Net periodic benefit cost (income)	¥ (17,042)	¥ (15,979)

Offsetting of Derivatives, Re_3

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions (Detail) - JPY (¥)	Sep. 30, 2022	Mar. 31, 2022
Offsetting Derivative Assets [Abstract]
Derivative assets, Net amounts presented in the condensed consolidated balance sheet	¥ 16,529,000,000,000	¥ 10,534,000,000,000
Offsetting Securities Borrowed [Abstract]
Receivables under securities borrowing transactions, Net amounts presented in the condensed consolidated balance sheet	4,487,405,000,000	4,496,376,000,000
Offsetting Derivative Liabilities [Abstract]
Derivative liabilities, Net amounts presented in the condensed consolidated balance sheet	17,515,000,000,000	10,895,000,000,000
Offsetting Securities Sold under Agreements to Repurchase [Abstract]
Payables under repurchase agreements, Gross amounts of recognized assets/liabilities	36,876,000,000,000	29,717,000,000,000
Offsetting Securities Loaned [Abstract]
Payables under securities lending transactions, Gross amounts of recognized assets/liabilities	991,000,000,000	1,097,000,000,000
Payables under securities lending transactions, Net amounts presented in the condensed consolidated balance sheet	901,612,000,000	1,021,887,000,000
Offsetting Obligations To Return Securities Received As Collateral [Abstract]
Obligations to return securities received as collateral, Gross amounts of recognized assets/liabilities	6,752,000,000,000	6,826,000,000,000
Financial Instruments including those of transferred business of MUFG Union Bank
Offsetting Derivative Assets [Abstract]
Derivative assets, Gross amounts of recognized assets/liabilities	16,614,000,000,000	10,611,000,000,000
Derivative assets, Gross amounts offset in the condensed consolidated balance sheet	0	0
Derivative assets, Net amounts presented in the condensed consolidated balance sheet	16,614,000,000,000	10,611,000,000,000
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(11,671,000,000,000)	(7,032,000,000,000)
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(1,633,000,000,000)	(620,000,000,000)
Derivative assets, Net amounts	3,310,000,000,000	2,959,000,000,000
Offsetting Securities Purchased under Agreements to Resell [Abstract]
Receivables under resale agreements, Gross amounts of recognized assets/liabilities	15,660,000,000,000	14,527,000,000,000
Receivables under resale agreements, Gross amounts offset in the condensed consolidated balance sheet	(2,276,000,000,000)	(2,024,000,000,000)
Receivables under resale agreements, Net amounts presented in the condensed consolidated balance sheet	13,384,000,000,000	12,503,000,000,000
Receivables under resale agreements, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(12,687,000,000,000)	(11,614,000,000,000)
Receivables under resale agreements, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(36,000,000,000)	(29,000,000,000)
Receivables under resale agreements, Net amounts	661,000,000,000	860,000,000,000
Offsetting Securities Borrowed [Abstract]
Receivables under securities borrowing transactions, Gross amounts of recognized assets/liabilities	4,576,000,000,000	4,571,000,000,000
Receivables under securities borrowing transactions, Gross amounts offset in the condensed consolidated balance sheet	(89,000,000,000)	(75,000,000,000)
Receivables under securities borrowing transactions, Net amounts presented in the condensed consolidated balance sheet	4,487,000,000,000	4,496,000,000,000
Receivables under securities borrowing transactions, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(4,397,000,000,000)	(4,367,000,000,000)
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	90,000,000,000	129,000,000,000
Offsetting Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed [Abstract]
Financial assets, Gross amounts of recognized assets/liabilities, Total	36,850,000,000,000	29,709,000,000,000
Financial assets, Gross amounts offset in the condensed consolidated balance sheet, Total	(2,365,000,000,000)	(2,099,000,000,000)
Financial assets, Net amounts presented in the condensed consolidated balance sheet, Total	34,485,000,000,000	27,610,000,000,000
Financial assets, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments, Total	(28,755,000,000,000)	(23,013,000,000,000)
Financial assets, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged, Total	(1,669,000,000,000)	(649,000,000,000)
Financial assets, Net amounts, Total	4,061,000,000,000	3,948,000,000,000
Offsetting Derivative Liabilities [Abstract]
Derivative liabilities, Gross amounts of recognized assets/liabilities	17,646,000,000,000	10,948,000,000,000
Derivative liabilities, Gross amounts offset in the condensed consolidated balance sheet	0	0
Derivative liabilities, Net amounts presented in the condensed consolidated balance sheet	17,646,000,000,000	10,948,000,000,000
Derivative liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(11,070,000,000,000)	(6,749,000,000,000)
Derivative liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(2,586,000,000,000)	(2,225,000,000,000)
Derivative liabilities, Net amounts	3,990,000,000,000	1,974,000,000,000
Offsetting Securities Sold under Agreements to Repurchase [Abstract]
Payables under repurchase agreements, Gross amounts of recognized assets/liabilities	36,876,000,000,000	29,717,000,000,000
Payables under repurchase agreements, Gross amounts offset in the condensed consolidated balance sheet	(2,238,000,000,000)	(1,991,000,000,000)
Payables under repurchase agreements, Net amounts presented in the condensed consolidated balance sheet	34,638,000,000,000	27,726,000,000,000
Payables under repurchase agreements, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(33,635,000,000,000)	(26,115,000,000,000)
Payables under repurchase agreements, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(55,000,000,000)	(85,000,000,000)
Payables under repurchase agreements, Net amounts	948,000,000,000	1,526,000,000,000
Offsetting Securities Loaned [Abstract]
Payables under securities lending transactions, Gross amounts of recognized assets/liabilities	991,000,000,000	1,097,000,000,000
Payables under securities lending transactions, Gross amounts offset in the condensed consolidated balance sheet	(89,000,000,000)	(75,000,000,000)
Payables under securities lending transactions, Net amounts presented in the condensed consolidated balance sheet	902,000,000,000	1,022,000,000,000
Payables under securities lending transactions, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(879,000,000,000)	(990,000,000,000)
Payables under securities lending transactions, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(7,000,000,000)	(5,000,000,000)
Payables under securities lending transactions, Net amounts	16,000,000,000	27,000,000,000
Offsetting Obligations To Return Securities Received As Collateral [Abstract]
Obligations to return securities received as collateral, Gross amounts of recognized assets/liabilities	6,752,000,000,000	6,826,000,000,000
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	6,752,000,000,000	6,826,000,000,000
Obligations to return securities received as collateral, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(1,736,000,000,000)	(1,864,000,000,000)
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	5,016,000,000,000	4,962,000,000,000
Offsetting Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned [Abstract]
Financial liabilities, Gross amounts of recognized assets/liabilities, Total	62,265,000,000,000	48,588,000,000,000
Financial liabilities, Gross amounts offset in the condensed consolidated balance sheet, Total	(2,327,000,000,000)	(2,066,000,000,000)
Financial liabilities, Net amounts presented in the condensed consolidated balance sheet, Total	59,938,000,000,000	46,522,000,000,000
Financial liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments, Total	(47,320,000,000,000)	(35,718,000,000,000)
Financial liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged, Total	(2,648,000,000,000)	(2,315,000,000,000)
Financial liabilities, Net amounts, Total	¥ 9,970,000,000,000	¥ 8,489,000,000,000

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, 2022	Mar. 31, 2022
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	¥ 36,876	¥ 29,717
Payables under securities lending transactions	991	1,097
Obligations to return securities received as collateral	6,752	6,826
Total	44,619	37,640
Overnight and open
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	9,188	6,703
Payables under securities lending transactions	889	972
Obligations to return securities received as collateral	6,056	5,782
Total	16,133	13,457
30 days or less
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	18,047	17,050
Payables under securities lending transactions	24	95
Obligations to return securities received as collateral	386	450
Total	18,457	17,595
31-90 days
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	6,319	3,934
Payables under securities lending transactions	7	29
Obligations to return securities received as collateral	69	437
Total	6,395	4,400
Over 90 days
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	3,322	2,030
Payables under securities lending transactions	71	1
Obligations to return securities received as collateral	241	157
Total	¥ 3,634	¥ 2,188

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, 2022	Mar. 31, 2022
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	¥ 36,876	¥ 29,717
Payables under securities lending transactions	991	1,097
Obligations to return securities received as collateral	6,752	6,826
Total	44,619	37,640
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	14,908	7,486
Payables under securities lending transactions	314	359
Obligations to return securities received as collateral	3,500	4,199
Total	18,722	12,044
Foreign government and official institution bonds
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	11,639	14,116
Payables under securities lending transactions	18	11
Obligations to return securities received as collateral	1,394	1,017
Total	13,051	15,144
Corporate bonds
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	876	745
Payables under securities lending transactions	75	68
Obligations to return securities received as collateral	418	330
Total	1,369	1,143
Residential mortgage-backed securities
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	8,497	6,720
Payables under securities lending transactions	0	1
Obligations to return securities received as collateral	4	0
Total	8,501	6,721
Other debt securities
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	390	276
Payables under securities lending transactions	0	0
Obligations to return securities received as collateral	72	2
Total	462	278
Marketable equity securities
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	304	360
Payables under securities lending transactions	559	641
Obligations to return securities received as collateral	1,364	1,278
Total	2,227	2,279
Other
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	262	14
Payables under securities lending transactions	25	17
Obligations to return securities received as collateral	0	0
Total	¥ 287	¥ 31

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, 2022	Sep. 30, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	¥ 16,296,522
Net change during the period	1,263,173	¥ 227,194
Balance at end of period	16,147,508	17,100,819
Accumulated other comprehensive income (loss), net of taxes:
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	227,033	(289,481)
Net change during the period	1,198,138	207,990
Balance at end of period	1,425,171	(81,491)
Net unrealized losses (gains) on investment securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(674,230)	(383,004)
Net change during the period	(218,267)	(28,028)
Balance at end of period	(892,497)	(411,032)
Net debt valuation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(14,538)	(37,862)
Net change during the period	45,485	5,965
Balance at end of period	30,947	(31,897)
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	5,969	19,029
Net change during the period	(21,686)	(5,750)
Balance at end of period	(15,717)	13,279
Defined benefit plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	29,124	(20,382)
Net change during the period	(16,948)	(9,681)
Balance at end of period	12,176	(30,063)
Foreign currency translation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	880,708	132,738
Net change during the period	1,409,554	245,484
Balance at end of period	¥ 2,290,262	¥ 378,222

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, 2022	Sep. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	¥ 1,263,173	¥ 227,194
Other comprehensive income attributable to Mitsubishi UFJ Financial Group	1,198,138	207,990
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	(534,655)	19,768
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	(132,963)	3,871
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(401,692)	15,897
Reclassification adjustment, Current Period, before Tax	(296,064)	43,792
Reclassification adjustment, Current Period, Tax (expense) or benefit	(88,081)	13,390
Reclassification adjustment, Current Period, Net of Tax	(207,983)	30,402
Other Comprehensive Income (Loss), before Tax	(238,591)	(24,024)
Other Comprehensive Income (Loss), Tax (expense) or benefit	(44,882)	(9,519)
Total	(193,709)	(14,505)
Net unrealized gains on investment securities attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	24,558	13,523
Net unrealized losses on investment securities attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(218,267)	(28,028)
Net debt valuation adjustments:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	65,470	8,270
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	20,047	2,533
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	45,423	5,737
Reclassification adjustment, Current Period, before Tax	(89)	(329)
Reclassification adjustment, Current Period, Tax (expense) or benefit	(27)	(101)
Reclassification adjustment, Current Period, Net of Tax	(62)	(228)
Other Comprehensive Income (Loss), before Tax	65,559	8,599
Other Comprehensive Income (Loss), Tax (expense) or benefit	20,074	2,634
Total	45,485	5,965
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	45,485	5,965
Net unrealized 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	(22,892)	(1,034)
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	(6,571)	(515)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(16,321)	(519)
Reclassification adjustment, Current Period, before Tax	6,701	6,748
Reclassification adjustment, Current Period, Tax (expense) or benefit	1,662	1,691
Reclassification adjustment, Current Period, Net of Tax	5,039	5,057
Other Comprehensive Income (Loss), before Tax	(29,593)	(7,782)
Other Comprehensive Income (Loss), Tax (expense) or benefit	(8,233)	(2,206)
Total	(21,360)	(5,576)
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	326	174
Net unrealized losses on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(21,686)	(5,750)
Defined benefit plans:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(23,354)	(12,034)
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	(6,682)	(3,385)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(16,672)	(8,649)
Reclassification adjustment, Current Period, before Tax	443	1,442
Reclassification adjustment, Current Period, Tax (expense) or benefit	250	798
Reclassification adjustment, Current Period, Net of Tax	193	644
Other Comprehensive Income (Loss), before Tax	(23,797)	(13,476)
Other Comprehensive Income (Loss), Tax (expense) or benefit	(6,932)	(4,183)
Total	(16,865)	(9,293)
Defined benefit plans attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	83	388
Defined benefit plans attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(16,948)	(9,681)
Foreign currency translation adjustments:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	1,654,830	262,860
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	196,704	13,271
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	1,458,126	249,589
Reclassification adjustment, Current Period, before Tax	12,257	(1,462)
Reclassification adjustment, Current Period, Tax (expense) or benefit	3,753	(448)
Reclassification adjustment, Current Period, Net of Tax	8,504	(1,014)
Other Comprehensive Income (Loss), before Tax	1,642,573	264,322
Other Comprehensive Income (Loss), Tax (expense) or benefit	192,951	13,719
Total	1,449,622	250,603
Foreign currency translation adjustments attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	40,068	5,119
Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	¥ 1,409,554	¥ 245,484

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, 2022	Sep. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains (losses)—net	¥ 493,309	¥ (335,333)
Equity in earnings of equity method investees—net	(186,906)	(216,085)
Interest income on Loans, including fees	(1,201,227)	(851,515)
Other non-interest income	(38,856)	(93,305)
Other non-interest expenses	(156,407)	(122,844)
Income (loss) before income tax expense (benefit)	(1,291,685)	1,050,529
Income tax expense (benefit)	(340,290)	293,696
Net income (loss) before attribution of noncontrolling interests	(951,395)	756,833
Amount reclassified out of Accumulated OCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) before income tax expense (benefit)	(276,752)	50,191
Income tax expense (benefit)	(82,443)	15,330
Net income (loss) before attribution of noncontrolling interests	(194,309)	34,861
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	(9,738)	(43,692)
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	299,281	0
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	6,521	(100)
Income (loss) before income tax expense (benefit)	(296,064)	43,792
Income tax expense (benefit)	(88,081)	13,390
Net income (loss) before attribution of noncontrolling interests	(207,983)	30,402
Amount reclassified out of Accumulated OCI | Net debt valuation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Equity in earnings of equity method investees—net	89	329
Income (loss) before income tax expense (benefit)	(89)	(329)
Income tax expense (benefit)	(27)	(101)
Net income (loss) before attribution of noncontrolling interests	(62)	(228)
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]
Income (loss) before income tax expense (benefit)	6,701	6,748
Income tax expense (benefit)	1,662	1,691
Net income (loss) before attribution of noncontrolling interests	5,039	5,057
Amount reclassified out of Accumulated OCI | Net unrealized losses (gains) on derivatives qualifying for cash flow hedges | Interest rate contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income on Loans, including fees	(5,173)	(5,589)
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	(1,528)	(1,159)
Amount reclassified out of Accumulated OCI | Net actuarial loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	4,165	3,425
Amount reclassified out of Accumulated OCI | Prior service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	(2,469)	(2,161)
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	(2,139)	(2,706)
Amount reclassified out of Accumulated OCI | Defined benefit plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) before income tax expense (benefit)	443	1,442
Income tax expense (benefit)	250	798
Net income (loss) before attribution of noncontrolling interests	193	644
Amount reclassified out of Accumulated OCI | Foreign currency translation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest income	(12,257)	1,462
Income (loss) before income tax expense (benefit)	12,257	(1,462)
Income tax expense (benefit)	3,753	(448)
Net income (loss) before attribution of noncontrolling interests	¥ 8,504	¥ (1,014)

Derivative Financial Instrume_3

Derivative Financial Instruments (Notional Amounts of Derivative Contracts) (Detail) - JPY (¥) ¥ in Trillions	Sep. 30, 2022	Mar. 31, 2022
Derivative [Line Items]
Notional amounts of derivatives	¥ 1,908.9	¥ 1,657.3
Interest rate contracts
Derivative [Line Items]
Notional amounts of derivatives	1,595.8	1,391.8
Foreign exchange contracts
Derivative [Line Items]
Notional amounts of derivatives	291.3	245
Equity contracts
Derivative [Line Items]
Notional amounts of derivatives	6.7	7.4
Commodity contracts
Derivative [Line Items]
Notional amounts of derivatives	0.1	0.1
Credit derivatives
Derivative [Line Items]
Notional amounts of derivatives	11.4	9.8
Other
Derivative [Line Items]
Notional amounts of derivatives	¥ 3.6	¥ 3.2

Derivative Financial Instrume_4

Derivative Financial Instruments (Fair Value Information on Derivative Instruments Recorded on Condensed Consolidated Balance Sheets) (Detail) - JPY (¥)	Sep. 30, 2022	Mar. 31, 2022
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	¥ 16,529,000,000,000	¥ 10,534,000,000,000
Fair value of derivative liabilities	17,515,000,000,000	10,895,000,000,000
Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	7,164,000,000,000	5,445,000,000,000
Fair value of derivative liabilities	8,372,000,000,000	5,652,000,000,000
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	9,059,000,000,000	4,803,000,000,000
Fair value of derivative liabilities	8,924,000,000,000	4,908,000,000,000
Equity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	203,000,000,000	151,000,000,000
Fair value of derivative liabilities	207,000,000,000	277,000,000,000
Commodity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	18,000,000,000	22,000,000,000
Fair value of derivative liabilities	18,000,000,000	22,000,000,000
Credit derivatives
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	85,000,000,000	103,000,000,000
Fair value of derivative liabilities	105,000,000,000	101,000,000,000
Other
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	0	10,000,000,000
Fair value of derivative liabilities	(111,000,000,000)	(65,000,000,000)
Not designated as hedges
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	16,523,000,000,000	10,532,000,000,000
Fair value of derivative liabilities	17,515,000,000,000	10,894,000,000,000
Not designated as hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	7,164,000,000,000	5,445,000,000,000
Fair value of derivative liabilities	8,372,000,000,000	5,652,000,000,000
Not designated as hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	9,053,000,000,000	4,801,000,000,000
Fair value of derivative liabilities	8,924,000,000,000	4,907,000,000,000
Not designated as hedges | Equity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	203,000,000,000	151,000,000,000
Fair value of derivative liabilities	207,000,000,000	277,000,000,000
Not designated as hedges | Commodity contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	18,000,000,000	22,000,000,000
Fair value of derivative liabilities	18,000,000,000	22,000,000,000
Not designated as hedges | Credit derivatives
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	85,000,000,000	103,000,000,000
Fair value of derivative liabilities	105,000,000,000	101,000,000,000
Not designated as hedges | Other
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	0	10,000,000,000
Fair value of derivative liabilities	(111,000,000,000)	(65,000,000,000)
Designated as hedges
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	6,000,000,000	2,000,000,000
Fair value of derivative liabilities	0	1,000,000,000
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	6,000,000,000	2,000,000,000
Fair value of derivative liabilities	0	1,000,000,000
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 (¥)	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	¥ (115,000,000,000)	¥ (154,000,000,000)
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	64,000,000,000	25,000,000,000
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(168,000,000,000)	0
Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(24,000,000,000)	(115,000,000,000)
Credit derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(2,000,000,000)	(35,000,000,000)
Other
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	15,000,000,000	(29,000,000,000)
Foreign exchange gains (losses) - net
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(176,000,000,000)	(7,000,000,000)
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)	(168,000,000,000)	0
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)	(8,000,000,000)	(7,000,000,000)
Trading account profits (losses) - net
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	61,000,000,000	(147,000,000,000)
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)	64,000,000,000	25,000,000,000
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)	(24,000,000,000)	(115,000,000,000)
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)	(2,000,000,000)	(35,000,000,000)
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)	¥ 23,000,000,000	¥ (22,000,000,000)

Derivative Financial Instrume_6

Derivative Financial Instruments (Protection Sold Through Credit Derivatives) (Detail) - Protection sold - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Credit Derivatives [Line Items]
1 year or less	¥ 893,201	¥ 643,285
1-5 years	3,578,045	2,982,687
Over 5 years	710,428	836,239
Total	5,181,674	4,462,211
(Asset)/liability	17,621	(72,915)
Single name credit default swaps:
Credit Derivatives [Line Items]
1 year or less	769,020	499,442
1-5 years	2,471,174	2,224,643
Over 5 years	697,854	798,398
Total	3,938,048	3,522,483
(Asset)/liability	16,199	(55,930)
Single name credit default swaps: | Investment grade
Credit Derivatives [Line Items]
1 year or less	628,647	408,281
1-5 years	2,138,484	1,874,796
Over 5 years	638,776	731,946
Total	3,405,907	3,015,023
(Asset)/liability	(3,703)	(61,308)
Single name credit default swaps: | Non-investment grade
Credit Derivatives [Line Items]
1 year or less	140,373	91,161
1-5 years	332,690	349,847
Over 5 years	59,078	66,452
Total	532,141	507,460
(Asset)/liability	19,902	5,378
Index and basket credit default swaps :
Credit Derivatives [Line Items]
1 year or less	124,181	143,843
1-5 years	1,106,871	758,044
Over 5 years	12,574	37,841
Total	1,243,626	939,728
(Asset)/liability	1,422	(16,985)
Index and basket credit default swaps : | Investment grade
Credit Derivatives [Line Items]
1 year or less	65,949	67,600
1-5 years	754,856	458,153
Over 5 years	10,937	36,955
Total	831,742	562,708
(Asset)/liability	(2,181)	(9,604)
Index and basket credit default swaps : | Non-investment grade
Credit Derivatives [Line Items]
1 year or less	50,684	56,299
1-5 years	0	19,936
Over 5 years	0	0
Total	50,684	76,235
(Asset)/liability	(79)	(61)
Index and basket credit default swaps : | Not rated
Credit Derivatives [Line Items]
1 year or less	7,548	19,944
1-5 years	352,015	279,955
Over 5 years	1,637	886
Total	361,200	300,785
(Asset)/liability	¥ 3,682	¥ (7,320)

Derivative Financial Instrume_7

Derivative Financial Instruments (Narrative) (Detail) - JPY (¥) ¥ in Billions	6 Months Ended	12 Months Ended
	Sep. 30, 2022	Mar. 31, 2022
Credit Derivatives:
Credit derivative, purchased credit protection	¥ 16	¥ 70
Credit derivative, purchased credit protection, notional value	4,614	4,083
Credit Risk, Liquidity Risk and Credit-risk-related Contingent Features:
Derivative, net liability position, aggregate fair value	1,200	500
Collateral already posted, aggregate fair value	532	349
Additional collateral, aggregate fair value	92	53
Assets needed for immediate settlement, aggregate fair value	¥ 158	¥ 60

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, 2022	Mar. 31, 2022
Guarantor Obligations [Line Items]
Contractual or Notional amount	¥ 67,401	¥ 60,874
Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Contractual or Notional amount	5,333	4,731
Performance guarantees
Guarantor Obligations [Line Items]
Contractual or Notional amount	4,341	3,828
Derivative Instruments
Guarantor Obligations [Line Items]
Contractual or Notional amount	42,782	39,982
Liabilities of trust accounts
Guarantor Obligations [Line Items]
Contractual or Notional amount	14,842	12,262
Other
Guarantor Obligations [Line Items]
Contractual or Notional amount	¥ 103	¥ 71

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, 2022	Mar. 31, 2022
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	¥ 67,401	¥ 60,874
Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	5,333	4,731
Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	4,341	3,828
Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	9,674	8,559
Normal | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	5,186	4,575
Normal | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	4,219	3,706
Normal | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	9,405	8,281
Close Watch | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	129	121
Close Watch | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	63	73
Close Watch | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	192	194
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	17	31
Likely to become Bankrupt or Legally/Virtually Bankrupt | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	25	22
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	42	53
Not rated | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	1	4
Not rated | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	34	27
Not rated | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	¥ 35	¥ 31

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, 2022	Mar. 31, 2022
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	¥ 87,999	¥ 82,886
Commercial letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	1,088	908
Commitments to make investments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	¥ 628	¥ 478

Contingent Liabilities (Narrati

Contingent Liabilities (Narrative) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Allowance for repayment of excess interest	¥ 16,060	¥ 21,120

Variable Interest Entities (Ass

Variable Interest Entities (Assets and Liabilities of Consolidated Variable Interest Entities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Variable Interest Entity [Line Items]
Total assets	¥ 385,750,916	¥ 367,650,018
Cash and due from banks	51,855,923	50,972,491
Interest-earning deposits in other banks	49,828,271	58,848,056
Trading account assets	47,934,649	42,668,336
Investment securities	62,059,308	55,815,751
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	121,671,584	111,678,692
Total liabilities	369,603,408	351,353,496
Deposits	231,196,298	224,589,943
Long-term debt	37,403,952	34,696,599
Consolidated VIEs
Variable Interest Entity [Line Items]
Total assets	20,309,319	18,958,567
Cash and due from banks	16,730	6,728
Interest-earning deposits in other banks	27,836	27,382
Trading account assets	1,398,228	1,252,308
Investment securities	1,965,151	1,824,892
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	16,605,245	15,651,462
All other assets	296,129	195,795
Total liabilities	515,834	584,032
Deposits	0	0
Other short-term borrowings	39,671	39,582
Long-term debt	402,654	449,231
All other liabilities	73,509	95,219
Consolidated VIEs | Consolidated VIEs before Elimination
Variable Interest Entity [Line Items]
Total assets	26,154,279	26,382,625
Cash and due from banks	73,247	122,214
Interest-earning deposits in other banks	56,855	63,557
Trading account assets	1,541,315	1,306,671
Investment securities	2,628,217	2,392,134
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	21,529,835	22,270,506
All other assets	324,810	227,543
Total liabilities	25,463,585	25,782,756
Deposits	5,449,185	7,063,850
Other short-term borrowings	5,751,042	5,152,061
Long-term debt	12,337,631	11,830,663
All other liabilities	1,925,727	1,736,182
Consolidated VIEs | Consolidated VIEs before Elimination | Asset-backed conduits
Variable Interest Entity [Line Items]
Total assets	6,776,160	6,115,286
Cash and due from banks	56,072	114,679
Interest-earning deposits in other banks	28,793	24,959
Trading account assets	123,767	30,114
Investment securities	975,073	906,109
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	5,470,418	5,016,254
All other assets	122,037	23,171
Total liabilities	6,690,554	6,091,830
Deposits	0	0
Other short-term borrowings	5,028,735	4,443,656
Long-term debt	1,313,354	1,337,938
All other liabilities	348,465	310,236
Consolidated VIEs | Consolidated VIEs before Elimination | Investment funds
Variable Interest Entity [Line Items]
Total assets	519,063	538,336
Cash and due from banks	336	578
Interest-earning deposits in other banks	20,911	28,021
Trading account assets	357,653	351,806
Investment securities	57,370	55,567
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	0	0
All other assets	82,793	102,364
Total liabilities	7,436	29,368
Deposits	0	0
Other short-term borrowings	0	0
Long-term debt	7,293	6,497
All other liabilities	143	22,871
Consolidated VIEs | Consolidated VIEs before Elimination | Special purpose entities created for structured financing
Variable Interest Entity [Line Items]
Total assets	234,811	192,200
Cash and due from banks	2,013	1,694
Interest-earning deposits in other banks	2,222	5,463
Trading account assets	8,532	7,294
Investment securities	0	0
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	140,410	119,002
All other assets	81,634	58,747
Total liabilities	117,495	101,814
Deposits	0	0
Other short-term borrowings	0	0
Long-term debt	113,236	95,218
All other liabilities	4,259	6,596
Consolidated VIEs | Consolidated VIEs before Elimination | Repackaged instruments
Variable Interest Entity [Line Items]
Total assets	387,076	342,771
Cash and due from banks	14,334	4,798
Interest-earning deposits in other banks	0	0
Trading account assets	163,928	134,387
Investment securities	160,751	111,711
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	47,219	88,209
All other assets	844	3,666
Total liabilities	391,007	345,606
Deposits	0	0
Other short-term borrowings	18,154	22,791
Long-term debt	267,440	248,535
All other liabilities	105,413	74,280
Consolidated VIEs | Consolidated VIEs before Elimination | Securitization of the MUFG Group’s assets
Variable Interest Entity [Line Items]
Total assets	11,077,555	10,544,934
Cash and due from banks	0	0
Interest-earning deposits in other banks	1,203	1,204
Trading account assets	0	0
Investment securities	0	0
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	11,058,713	10,526,124
All other assets	17,639	17,606
Total liabilities	11,101,594	10,569,281
Deposits	0	0
Other short-term borrowings	0	0
Long-term debt	10,604,347	10,102,964
All other liabilities	497,247	466,317
Consolidated VIEs | Consolidated VIEs before Elimination | Trust arrangements
Variable Interest Entity [Line Items]
Total assets	7,102,194	8,581,448
Cash and due from banks	0	0
Interest-earning deposits in other banks	0	0
Trading account assets	872,829	760,960
Investment securities	1,419,479	1,303,063
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	4,809,882	6,517,421
All other assets	4	4
Total liabilities	7,102,377	8,581,731
Deposits	5,449,185	7,063,850
Other short-term borrowings	702,270	683,346
Long-term debt	0	0
All other liabilities	950,922	834,535
Consolidated VIEs | Consolidated VIEs before Elimination | Other
Variable Interest Entity [Line Items]
Total assets	57,420	67,650
Cash and due from banks	492	465
Interest-earning deposits in other banks	3,726	3,910
Trading account assets	14,606	22,110
Investment securities	15,544	15,684
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	3,193	3,496
All other assets	19,859	21,985
Total liabilities	53,122	63,126
Deposits	0	0
Other short-term borrowings	1,883	2,268
Long-term debt	31,961	39,511
All other liabilities	19,278	21,347
Consolidated VIEs | The amounts eliminated in consolidation
Variable Interest Entity [Line Items]
Total assets	(5,844,960)	(7,424,058)
Cash and due from banks	(56,517)	(115,486)
Interest-earning deposits in other banks	(29,019)	(36,175)
Trading account assets	(143,087)	(54,363)
Investment securities	(663,066)	(567,242)
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	(4,924,590)	(6,619,044)
All other assets	(28,681)	(31,748)
Total liabilities	(15,850,216)	(15,116,977)
Deposits	(2,966)	(756)
Other short-term borrowings	(2,647,997)	(2,590,224)
Long-term debt	(11,905,225)	(11,378,021)
All other liabilities	(1,294,028)	(1,147,976)
Consolidated VIEs | The amount of liabilities with recourse to the general credit of the MUFG Group
Variable Interest Entity [Line Items]
Total liabilities	(9,097,535)	(10,081,747)
Deposits	(5,446,219)	(7,063,094)
Other short-term borrowings	(3,063,374)	(2,522,255)
Long-term debt	(29,752)	(3,411)
All other liabilities	¥ (558,190)	¥ (492,987)

Variable Interest Entities (A_2

Variable Interest Entities (Assets and Liabilities of Non-consolidated Variable Interest Entities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Variable Interest Entity [Line Items]
Total assets	¥ 385,750,916	¥ 367,650,018
Total liabilities	369,603,408	351,353,496
Non-consolidated VIEs
Variable Interest Entity [Line Items]
Total assets	261,594,644	263,554,458
Maximum exposure	26,112,554	21,293,857
Total assets	19,817,606	16,606,190
Trading account assets	1,512,988	1,297,730
Investment securities	5,446,362	4,832,097
Loans	12,593,528	10,256,662
All other assets	264,728	219,701
Total liabilities	233,404	60,169
All other liabilities	233,404	60,169
Non-consolidated VIEs | Asset-backed conduits
Variable Interest Entity [Line Items]
Total assets	33,736,781	27,325,711
Maximum exposure	7,289,764	6,010,143
Total assets	5,722,762	4,858,210
Trading account assets	0	0
Investment securities	1,957,516	1,756,122
Loans	3,765,246	3,102,088
All other assets	0	0
Total liabilities	3,928	520
All other liabilities	3,928	520
Non-consolidated VIEs | Investment funds
Variable Interest Entity [Line Items]
Total assets	64,892,164	112,262,392
Maximum exposure	4,219,171	3,352,266
Total assets	3,233,231	2,622,407
Trading account assets	236,890	328,963
Investment securities	729,707	622,967
Loans	2,221,423	1,628,737
All other assets	45,211	41,740
Total liabilities	9,768	4,507
All other liabilities	9,768	4,507
Non-consolidated VIEs | Special purpose entities created for structured financing
Variable Interest Entity [Line Items]
Total assets	58,613,172	42,312,881
Maximum exposure	5,906,736	4,829,867
Total assets	3,896,609	3,275,008
Trading account assets	127,189	234,384
Investment securities	27,561	20,854
Loans	3,725,604	3,012,252
All other assets	16,255	7,518
Total liabilities	158,234	25,424
All other liabilities	158,234	25,424
Non-consolidated VIEs | Repackaged instruments
Variable Interest Entity [Line Items]
Total assets	9,383,684	7,533,839
Maximum exposure	4,574,788	3,627,418
Total assets	4,256,915	3,448,224
Trading account assets	950,867	563,524
Investment securities	2,724,026	2,424,602
Loans	472,931	373,834
All other assets	109,091	86,264
Total liabilities	5,225	1,590
All other liabilities	5,225	1,590
Non-consolidated VIEs | Other
Variable Interest Entity [Line Items]
Total assets	94,968,843	74,119,635
Maximum exposure	4,122,095	3,474,163
Total assets	2,708,089	2,402,341
Trading account assets	198,042	170,859
Investment securities	7,552	7,552
Loans	2,408,324	2,139,751
All other assets	94,171	84,179
Total liabilities	56,249	28,128
All other liabilities	¥ 56,249	¥ 28,128

Fees and Commissions Income (De

Fees and Commissions Income (Details of Fees and Commissions Income) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	¥ 787,642	¥ 798,065
Fees and commissions on deposits
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	27,784	25,847
Fees and commissions on remittances and transfers
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	73,627	83,029
Fees and commissions on foreign trading business
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	35,165	33,903
Fees and commissions on credit card business
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	111,697	99,738
Fees and commissions on security-related services
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	107,541	132,161
Fees and commissions on administration and management services for investment funds
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	133,070	145,660
Trust fees
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	66,832	66,120
Guarantee fees
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	23,481	22,431
Insurance commissions
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	22,259	20,763
Fees and commissions on real estate business
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	21,984	20,392
Other fees and commissions
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	¥ 164,202	¥ 148,021

Business Segments (Narrative) (

Business Segments (Narrative) (Detail) ¥ in Billions	6 Months Ended
	Sep. 30, 2022 segment	Sep. 30, 2021 JPY (¥)
Segment Reporting Information [Line Items]
Number of operating segments | segment	7
Operating Segments | Digital Service Business Group | Customer Business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		¥ (5.8)
Operating Segments | Global Corporate & Investment Banking Business Group | Customer Business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		(2.6)
Operating Segments | Global Commercial Banking Business Group | Customer Business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		(0.6)
Operating Segments | Japanese Corporate & Investment Banking Business Group | Customer Business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		(0.5)
Operating Segments | Retail & Commercial Banking Business Group | Customer Business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		6
Operating Segments | Global Markets Business Group | Customer Business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		1.4
Other
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		¥ 1.9

Business Segments (Financial In

Business Segments (Financial Information by Business Segment) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Business segment information
Net revenue:	¥ 2,344,900	¥ 2,007,000
Net interest income	1,166,734	979,452
Operating expenses	1,455,300	1,372,700
Operating profit (loss)	889,600	634,300
Fixed assets:	1,303,300
Additions of fixed assets	87,200
Depreciation	74,600
BK and TB
Business segment information
Net revenue:	1,176,100	994,600
Net interest income	1,160,000	582,300
Net fees	320,900	292,600
Other	(304,800)	119,700
Other than BK and TB
Business segment information
Net revenue:	1,168,800	1,012,400
Operating Segments | Customer Business
Business segment information
Net revenue:	1,968,900	1,703,200
Operating expenses	1,251,200	1,203,700
Operating profit (loss)	717,700	499,500
Fixed assets:	653,100
Additions of fixed assets	67,200
Depreciation	52,500
Operating Segments | BK and TB | Customer Business
Business segment information
Net revenue:	925,300	730,100
Net interest income	498,100	370,600
Net fees	359,500	319,100
Other	67,700	40,400
Operating Segments | Other than BK and TB | Customer Business
Business segment information
Net revenue:	1,043,600	973,100
Operating Segments | Digital Service Business Group | Customer Business
Business segment information
Net revenue:	371,100	372,400
Operating expenses	261,900	278,300
Operating profit (loss)	109,200	94,100
Fixed assets:	147,500
Additions of fixed assets	15,200
Depreciation	5,100
Operating Segments | Digital Service Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	126,600	132,400
Net interest income	107,700	111,700
Net fees	17,600	19,300
Other	1,300	1,400
Operating Segments | Digital Service Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	244,500	240,000
Operating Segments | Retail & Commercial Banking Business Group | Customer Business
Business segment information
Net revenue:	281,900	279,200
Operating expenses	226,500	245,500
Operating profit (loss)	55,400	33,700
Fixed assets:	199,100
Additions of fixed assets	21,000
Depreciation	11,000
Operating Segments | Retail & Commercial Banking Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	192,700	181,800
Net interest income	90,500	82,500
Net fees	87,500	89,800
Other	14,700	9,500
Operating Segments | Retail & Commercial Banking Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	89,200	97,400
Operating Segments | Japanese Corporate & Investment Banking Business Group | Customer Business
Business segment information
Net revenue:	346,100	265,800
Operating expenses	166,000	156,900
Operating profit (loss)	180,100	108,900
Fixed assets:	157,100
Additions of fixed assets	17,700
Depreciation	18,000
Operating Segments | Japanese Corporate & Investment Banking Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	278,500	206,400
Net interest income	153,100	97,200
Net fees	92,400	87,200
Other	33,000	22,000
Operating Segments | Japanese Corporate & Investment Banking Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	67,600	59,400
Operating Segments | Global Commercial Banking Business Group | Customer Business
Business segment information
Net revenue:	447,400	374,100
Operating expenses	305,000	263,900
Operating profit (loss)	142,400	110,200
Fixed assets:	1,200
Additions of fixed assets	400
Depreciation	100
Operating Segments | Global Commercial Banking Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	27,300	900
Net interest income	27,300	900
Net fees	0	0
Other	0	0
Operating Segments | Global Commercial Banking Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	420,100	373,200
Operating Segments | Asset Management & Investor Services Business Group | Customer Business
Business segment information
Net revenue:	177,200	176,000
Operating expenses	123,400	118,300
Operating profit (loss)	53,800	57,700
Fixed assets:	13,700
Additions of fixed assets	3,200
Depreciation	2,800
Operating Segments | Asset Management & Investor Services Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	53,000	52,700
Net interest income	5,300	4,100
Net fees	47,800	48,500
Other	(100)	100
Operating Segments | Asset Management & Investor Services Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	124,200	123,300
Operating Segments | Global Corporate & Investment Banking Business Group | Customer Business
Business segment information
Net revenue:	345,200	235,700
Operating expenses	168,400	140,800
Operating profit (loss)	176,800	94,900
Fixed assets:	134,500
Additions of fixed assets	9,700
Depreciation	15,500
Operating Segments | Global Corporate & Investment Banking Business Group | BK and TB | Customer Business
Business segment information
Net revenue:	247,200	155,900
Net interest income	114,200	74,200
Net fees	114,200	74,300
Other	18,800	7,400
Operating Segments | Global Corporate & Investment Banking Business Group | Other than BK and TB | Customer Business
Business segment information
Net revenue:	98,000	79,800
Operating Segments | Global Markets Business Group
Business segment information
Net revenue:	360,600	280,800
Operating expenses	135,300	119,600
Operating profit (loss)	225,300	161,200
Fixed assets:	108,700
Additions of fixed assets	10,400
Depreciation	13,300
Operating Segments | Global Markets Business Group | BK and TB
Business segment information
Net revenue:	225,600	192,100
Net interest income	580,500	127,600
Net fees	(8,600)	(3,600)
Other	(346,300)	68,100
Operating Segments | Global Markets Business Group | Other than BK and TB
Business segment information
Net revenue:	135,000	88,700
Other
Business segment information
Net revenue:	15,400	23,000
Operating expenses	68,800	49,400
Operating profit (loss)	(53,400)	(26,400)
Fixed assets:	541,500
Additions of fixed assets	9,600
Depreciation	8,800
Other | Subsidiaries
Business segment information
Fixed assets:	1,422,400
Other | BK and TB
Business segment information
Net revenue:	25,200	72,400
Net interest income	81,400	84,100
Net fees	(30,000)	(22,900)
Other	(26,200)	11,200
Other | Other than BK and TB
Business segment information
Net revenue:	¥ (9,800)	¥ (49,400)

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, 2022	Sep. 30, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit:	¥ 889,600	¥ 634,300
Foreign exchange losses—net	(126,755)	5,382
Trading account profits (losses) —net	(1,367,090)	59,171
Equity investment securities gains (losses)—net	(214)	(1,913)
Equity in earnings of equity method investees—net	186,906	216,085
Reversal of off-balance sheet credit instruments	12,112	6,381
Impairment reversal of assets held for sale	134,141	0
Loss on valuation adjustment for loans held for sale	(209,107)	0
Income (loss) before income tax expense (benefit)	(1,291,685)	1,050,529
Fixed assets:	1,303,300
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit:	890,000	634,000
Reversal of credit losses	98,000	11,000
Foreign exchange losses—net	(165,000)	(46,000)
Trading account profits (losses) —net	(1,670,000)	4,000
Equity investment securities gains (losses)—net	(433,000)	289,000
Debt investment securities gains (losses)—net	199,000	(24,000)
Equity in earnings of equity method investees—net	187,000	216,000
Reversal of off-balance sheet credit instruments	12,000	6,000
Impairment reversal of assets held for sale	134,000	0
Loss on valuation adjustment for loans held for sale	(209,000)	0
Other—net	(335,000)	(39,000)
Income (loss) before income tax expense (benefit)	(1,292,000)	1,051,000
Fixed assets:	2,391,000	0
U.S. GAAP adjustments and other	1,088,000	0
Segment Reconciling Items | Japanese Gaap
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Fixed assets:	¥ 1,303,000	¥ 0

Fair Value (Assets and Liabilit

Fair Value (Assets and Liabilities Measured at Fair Value by Level on Recurring Basis) (Detail) - JPY (¥)	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021
Assets
Trading derivative assets	¥ 16,529,000,000,000	¥ 10,534,000,000,000
Available-for-sale debt securities	43,241,446,000,000	45,798,442,000,000
Equity securities	4,970,762,000,000	5,422,200,000,000
Assets held for sale	1,794,976,000,000		¥ 10,193,119,000,000
Liabilities
Trading derivative liabilities	17,515,000,000,000	10,895,000,000,000
Liabilities held for sale	2,592,893,000,000		¥ 10,874,609,000,000
Japanese national government and Japanese government agency bonds
Assets
Available-for-sale debt securities	31,982,768,000,000	34,327,764,000,000
Japanese prefectural and municipal bonds
Assets
Available-for-sale debt securities	3,936,890,000,000	4,146,144,000,000
Foreign government and official institution bonds
Assets
Available-for-sale debt securities	3,029,278,000,000	2,631,343,000,000
Corporate bonds
Assets
Available-for-sale debt securities	1,054,033,000,000	1,090,148,000,000
Residential mortgage-backed securities
Assets
Available-for-sale debt securities	978,380,000,000	900,407,000,000
Asset-backed securities
Assets
Available-for-sale debt securities	1,896,754,000,000	1,588,420,000,000
Other debt securities
Assets
Available-for-sale debt securities	272,339,000,000	103,579,000,000
Commercial paper
Assets
Available-for-sale debt securities	91,004,000,000	1,010,637,000,000
Fair Value, Measurements, Recurring
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	31,192,447,000,000	31,967,627,000,000
Trading derivative assets	16,524,159,000,000	10,521,431,000,000
Available-for-sale debt securities	43,241,446,000,000	45,798,442,000,000
Equity securities	4,562,235,000,000	5,042,026,000,000
Other financial assets	1,316,754,000,000	1,477,532,000,000
Assets held for sale:
Total	100,359,130,000,000	98,098,401,000,000
Liabilities
Trading securities sold, not yet purchased	176,485,000,000	59,826,000,000
Trading derivative liabilities	17,627,139,000,000	10,959,220,000,000
Obligation to return securities received as collateral	6,751,744,000,000	6,826,215,000,000
Other financial liabilities	369,655,000,000	541,598,000,000
Liabilities held for sale	129,629,000,000	53,199,000,000
Liabilities held for sale:
Other	129,629,000,000	53,199,000,000
Total	25,054,652,000,000	18,440,058,000,000
Fair Value, Measurements, Recurring | Disposal group, disposed of by sale, not discontinued operations
Assets
Assets held for sale	3,522,089,000,000	3,291,343,000,000
Assets held for sale:
Investment securities	3,401,195,000,000	3,188,257,000,000
Other	120,894,000,000	103,086,000,000
Fair Value, Measurements, Recurring | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	14,646,970,000,000	17,170,976,000,000
Trading derivative assets	215,676,000,000	201,860,000,000
Available-for-sale debt securities	30,609,047,000,000	32,672,696,000,000
Equity securities	4,360,147,000,000	4,834,102,000,000
Other financial assets	1,166,466,000,000	1,434,046,000,000
Assets held for sale:
Total	51,507,903,000,000	56,735,130,000,000
Liabilities
Trading securities sold, not yet purchased	167,804,000,000	57,371,000,000
Trading derivative liabilities	156,629,000,000	217,570,000,000
Obligation to return securities received as collateral	6,460,545,000,000	6,670,482,000,000
Other financial liabilities	0	0
Liabilities held for sale:
Other	176,000,000	852,000,000
Total	6,785,154,000,000	6,946,275,000,000
Fair Value, Measurements, Recurring | Level 1 | Disposal group, disposed of by sale, not discontinued operations
Assets
Assets held for sale	509,597,000,000	421,450,000,000
Assets held for sale:
Investment securities	505,221,000,000	409,618,000,000
Other	4,376,000,000	11,832,000,000
Liabilities
Liabilities held for sale	176,000,000	852,000,000
Fair Value, Measurements, Recurring | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	15,320,546,000,000	13,998,654,000,000
Trading derivative assets	16,233,426,000,000	10,204,531,000,000
Available-for-sale debt securities	12,360,105,000,000	12,912,810,000,000
Equity securities	133,468,000,000	152,041,000,000
Other financial assets	54,127,000,000	38,574,000,000
Assets held for sale:
Total	47,028,863,000,000	40,097,982,000,000
Liabilities
Trading securities sold, not yet purchased	8,681,000,000	2,455,000,000
Trading derivative liabilities	17,420,335,000,000	10,697,699,000,000
Obligation to return securities received as collateral	217,604,000,000	155,733,000,000
Other financial liabilities	248,171,000,000	525,135,000,000
Liabilities held for sale	128,777,000,000	50,744,000,000
Liabilities held for sale:
Other	128,777,000,000	50,744,000,000
Total	18,023,568,000,000	11,431,766,000,000
Fair Value, Measurements, Recurring | Level 2 | Disposal group, disposed of by sale, not discontinued operations
Assets
Assets held for sale	2,927,191,000,000	2,791,372,000,000
Assets held for sale:
Investment securities	2,832,178,000,000	2,713,377,000,000
Other	95,013,000,000	77,995,000,000
Fair Value, Measurements, Recurring | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	1,224,931,000,000	797,997,000,000
Trading derivative assets	75,057,000,000	115,040,000,000
Available-for-sale debt securities	272,294,000,000	212,936,000,000
Equity securities	68,620,000,000	55,883,000,000
Other financial assets	96,161,000,000	4,912,000,000
Assets held for sale:
Total	1,822,364,000,000	1,265,289,000,000
Liabilities
Trading securities sold, not yet purchased	0	0
Trading derivative liabilities	50,175,000,000	43,951,000,000
Obligation to return securities received as collateral	73,595,000,000	0
Other financial liabilities	121,484,000,000	16,463,000,000
Liabilities held for sale	676,000,000	1,603,000,000
Liabilities held for sale:
Other	676,000,000	1,603,000,000
Total	245,930,000,000	62,017,000,000
Fair Value, Measurements, Recurring | Level 3 | Disposal group, disposed of by sale, not discontinued operations
Assets
Assets held for sale	85,301,000,000	78,521,000,000
Assets held for sale:
Investment securities	63,796,000,000	65,262,000,000
Other	21,505,000,000	13,259,000,000
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds
Assets
Available-for-sale debt securities	31,982,768,000,000	34,327,764,000,000
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 1
Assets
Available-for-sale debt securities	28,582,282,000,000	30,989,319,000,000
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 2
Assets
Available-for-sale debt securities	3,400,486,000,000	3,338,445,000,000
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	3,936,890,000,000	4,146,144,000,000
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	3,936,890,000,000	4,146,144,000,000
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	3,029,278,000,000	2,631,343,000,000
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 1
Assets
Available-for-sale debt securities	2,026,765,000,000	1,683,377,000,000
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 2
Assets
Available-for-sale debt securities	1,002,513,000,000	936,076,000,000
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 3
Assets
Available-for-sale debt securities	0	11,890,000,000
Fair Value, Measurements, Recurring | Corporate bonds
Assets
Available-for-sale debt securities	1,054,033,000,000	1,090,148,000,000
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	1,047,754,000,000	1,087,059,000,000
Fair Value, Measurements, Recurring | Corporate bonds | Level 3
Assets
Available-for-sale debt securities	6,279,000,000	3,089,000,000
Fair Value, Measurements, Recurring | Residential mortgage-backed securities
Assets
Available-for-sale debt securities	978,380,000,000	900,407,000,000
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	978,365,000,000	900,392,000,000
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 3
Assets
Available-for-sale debt securities	15,000,000	15,000,000
Fair Value, Measurements, Recurring | Asset-backed securities
Assets
Available-for-sale debt securities	1,896,754,000,000	1,588,420,000,000
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	1,714,336,000,000	1,464,041,000,000
Fair Value, Measurements, Recurring | Asset-backed securities | Level 3
Assets
Available-for-sale debt securities	182,418,000,000	124,379,000,000
Fair Value, Measurements, Recurring | Other debt securities
Assets
Available-for-sale debt securities	272,339,000,000	103,579,000,000
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	188,757,000,000	30,016,000,000
Fair Value, Measurements, Recurring | Other debt securities | Level 3
Assets
Available-for-sale debt securities	83,582,000,000	73,563,000,000
Fair Value, Measurements, Recurring | Commercial paper
Assets
Available-for-sale debt securities	91,004,000,000	1,010,637,000,000
Fair Value, Measurements, Recurring | Commercial paper | Level 1
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Commercial paper | Level 2
Assets
Available-for-sale debt securities	91,004,000,000	1,010,637,000,000
Fair Value, Measurements, Recurring | Commercial paper | Level 3
Assets
Available-for-sale debt securities	0	0
Fair Value, Measurements, Recurring | Marketable equity securities
Assets
Equity securities	4,492,600,000,000	4,986,143,000,000
Fair Value, Measurements, Recurring | Marketable equity securities | Level 1
Assets
Equity securities	4,360,147,000,000	4,834,102,000,000
Fair Value, Measurements, Recurring | Marketable equity securities | Level 2
Assets
Equity securities	132,453,000,000	152,041,000,000
Fair Value, Measurements, Recurring | Marketable equity securities | Level 3
Assets
Equity securities	0	0
Fair Value, Measurements, Recurring | Nonmarketable equity securities
Assets
Equity securities	69,635,000,000	55,883,000,000
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	1,015,000,000	0
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Level 3
Assets
Equity securities	68,620,000,000	55,883,000,000
Fair Value, Measurements, Recurring | Interest rate contracts
Assets
Trading derivative assets	7,163,964,000,000	5,444,683,000,000
Liabilities
Trading derivative liabilities	8,372,297,000,000	5,651,690,000,000
Fair Value, Measurements, Recurring | Interest rate contracts | Level 1
Assets
Trading derivative assets	131,421,000,000	121,584,000,000
Liabilities
Trading derivative liabilities	25,850,000,000	19,841,000,000
Fair Value, Measurements, Recurring | Interest rate contracts | Level 2
Assets
Trading derivative assets	7,017,623,000,000	5,268,790,000,000
Liabilities
Trading derivative liabilities	8,323,000,000,000	5,615,033,000,000
Fair Value, Measurements, Recurring | Interest rate contracts | Level 3
Assets
Trading derivative assets	14,920,000,000	54,309,000,000
Liabilities
Trading derivative liabilities	23,447,000,000	16,816,000,000
Fair Value, Measurements, Recurring | Foreign exchange contracts
Assets
Trading derivative assets	9,053,254,000,000	4,800,813,000,000
Liabilities
Trading derivative liabilities	8,924,426,000,000	4,907,168,000,000
Fair Value, Measurements, Recurring | Foreign exchange contracts | Level 1
Assets
Trading derivative assets	2,822,000,000	2,514,000,000
Liabilities
Trading derivative liabilities	902,000,000	4,017,000,000
Fair Value, Measurements, Recurring | Foreign exchange contracts | Level 2
Assets
Trading derivative assets	9,040,047,000,000	4,788,739,000,000
Liabilities
Trading derivative liabilities	8,920,538,000,000	4,901,054,000,000
Fair Value, Measurements, Recurring | Foreign exchange contracts | Level 3
Assets
Trading derivative assets	10,385,000,000	9,560,000,000
Liabilities
Trading derivative liabilities	2,986,000,000	2,097,000,000
Fair Value, Measurements, Recurring | Equity contracts
Assets
Trading derivative assets	202,977,000,000	150,948,000,000
Liabilities
Trading derivative liabilities	207,306,000,000	277,077,000,000
Fair Value, Measurements, Recurring | Equity contracts | Level 1
Assets
Trading derivative assets	81,433,000,000	77,762,000,000
Liabilities
Trading derivative liabilities	129,877,000,000	193,712,000,000
Fair Value, Measurements, Recurring | Equity contracts | Level 2
Assets
Trading derivative assets	94,454,000,000	47,207,000,000
Liabilities
Trading derivative liabilities	72,175,000,000	80,806,000,000
Fair Value, Measurements, Recurring | Equity contracts | Level 3
Assets
Trading derivative assets	27,090,000,000	25,979,000,000
Liabilities
Trading derivative liabilities	5,254,000,000	2,559,000,000
Fair Value, Measurements, Recurring | Commodity contracts
Assets
Trading derivative assets	18,144,000,000	22,072,000,000
Liabilities
Trading derivative liabilities	18,161,000,000	22,029,000,000
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	9,000,000	88,000,000
Liabilities
Trading derivative liabilities	0	0
Fair Value, Measurements, Recurring | Commodity contracts | Level 3
Assets
Trading derivative assets	18,135,000,000	21,984,000,000
Liabilities
Trading derivative liabilities	18,161,000,000	22,029,000,000
Fair Value, Measurements, Recurring | Credit derivatives
Assets
Trading derivative assets	85,163,000,000	102,515,000,000
Liabilities
Trading derivative liabilities	104,671,000,000	100,885,000,000
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	81,293,000,000	99,707,000,000
Liabilities
Trading derivative liabilities	104,622,000,000	100,806,000,000
Fair Value, Measurements, Recurring | Credit derivatives | Level 3
Assets
Trading derivative assets	3,870,000,000	2,808,000,000
Liabilities
Trading derivative liabilities	49,000,000	79,000,000
Fair Value, Measurements, Recurring | Other
Assets
Trading derivative assets	657,000,000	400,000,000
Liabilities
Trading derivative liabilities	278,000,000	371,000,000
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	0	0
Liabilities
Trading derivative liabilities	0	0
Fair Value, Measurements, Recurring | Other | Level 3
Assets
Trading derivative assets	657,000,000	400,000,000
Liabilities
Trading derivative liabilities	278,000,000	371,000,000
Fair Value, Measurements, Recurring | Debt securities | Japanese national government and Japanese government agency bonds
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	7,980,939,000,000	8,271,741,000,000
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	7,642,083,000,000	7,927,707,000,000
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	338,856,000,000	344,034,000,000
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	133,683,000,000	132,097,000,000
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	133,683,000,000	132,097,000,000
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	6,518,388,000,000	8,079,219,000,000
Fair Value, Measurements, Recurring | Debt securities | Foreign government and official institution bonds | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	5,946,406,000,000	7,606,345,000,000
Fair Value, Measurements, Recurring | Debt securities | Foreign government and official institution bonds | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	570,711,000,000	471,163,000,000
Fair Value, Measurements, Recurring | Debt securities | Foreign government and official institution bonds | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	1,271,000,000	1,711,000,000
Fair Value, Measurements, Recurring | Debt securities | Corporate bonds
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	2,632,928,000,000	2,668,750,000,000
Fair Value, Measurements, Recurring | Debt securities | Corporate bonds | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	2,697,000,000	3,198,000,000
Fair Value, Measurements, Recurring | Debt securities | Corporate bonds | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	2,630,231,000,000	2,664,869,000,000
Fair Value, Measurements, Recurring | Debt securities | Corporate bonds | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	683,000,000
Fair Value, Measurements, Recurring | Debt securities | Residential mortgage-backed securities
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	6,697,130,000,000	6,792,386,000,000
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	6,697,130,000,000	6,792,386,000,000
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 | Commercial mortgage-backed securities
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	13,296,000,000	7,402,000,000
Fair Value, Measurements, Recurring | Debt securities | Commercial mortgage-backed securities | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Fair Value, Measurements, Recurring | Debt securities | Commercial mortgage-backed securities | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	13,296,000,000	7,402,000,000
Fair Value, Measurements, Recurring | Debt securities | Commercial 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	2,160,300,000,000	1,526,106,000,000
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	1,463,922,000,000	1,210,875,000,000
Fair Value, Measurements, Recurring | Debt securities | Asset-backed securities | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	696,378,000,000	315,231,000,000
Fair Value, Measurements, Recurring | Debt securities | Other debt securities
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	358,152,000,000	313,166,000,000
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	0	0
Fair Value, Measurements, Recurring | Debt securities | Other debt securities | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	358,152,000,000	313,166,000,000
Fair Value, Measurements, Recurring | Debt securities | Commercial paper
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	2,228,399,000,000	1,271,921,000,000
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	2,228,399,000,000	1,271,921,000,000
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	2,469,232,000,000	2,904,839,000,000
Fair Value, Measurements, Recurring | Equity securities | NAV of private equity funds
Liabilities held for sale:
Investment securities valued at net asset value	218,043,000,000	179,278,000,000
Unfunded commitments	178,960,000,000	110,360,000,000
Fair Value, Measurements, Recurring | Equity securities | Level 1
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	1,055,784,000,000	1,633,726,000,000
Fair Value, Measurements, Recurring | Equity securities | Level 2
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	1,244,318,000,000	1,103,907,000,000
Fair Value, Measurements, Recurring | Equity securities | Level 3
Assets
Debt Securities, Trading, and Equity Securities, FV-NI	169,130,000,000	167,206,000,000
Fair Value, Measurements, Recurring | Real Estate Funds | Nonmarketable equity securities
Liabilities held for sale:
Investment securities valued at net asset value	31,224,000,000	30,142,000,000
Unfunded commitments	1,154,000,000	1,011,000,000
Fair Value, Measurements, Recurring | Private equity and other funds | Nonmarketable equity securities
Liabilities held for sale:
Investment securities valued at net asset value	41,327,000,000	39,462,000,000
Unfunded commitments	¥ 0	¥ 0

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, 2022	Sep. 30, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	¥ 1,219,735	¥ 1,135,409
Total gains (losses) for the period included in earnings, Assets	106,083	22,890
Total gains (losses) for the period included in other comprehensive income, Assets	45,565	24,845
Purchases, Assets	604,609	392,679
Issues, Assets	(334)	(355)
Sales, Assets	(23,902)	(77,270)
Settlements, Assets	(181,103)	(438,828)
Transfers into Level 3, Assets	26,976	15,980
Transfers out of Level 3, Assets	(26,116)	(6,077)
Level 3 assets, Ending balance	1,771,513	1,069,273
Change in unrealized gains (losses) for assets still held at period end	141,791	27,268
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 liabilities, Beginning balance	16,463	(2,212)
Total gains (losses) for the period included in earnings, Liabilities	54,070	(8,176)
Total gains (losses) for the period included in other comprehensive income, Liabilities	(10,269)	(2,341)
Purchases, Liabilities	0	0
Issues, Liabilities	128,122	8,145
Sales, Liabilities	0	0
Settlements, Liabilities	(19,043)	(12,450)
Transfers into Level 3, Liabilities	116,892	6,809
Transfers out of Level 3, Liabilities	(3,554)	(7,233)
Level 3 liabilities, Ending balance	195,079	3,576
Change in unrealized gains (losses) included in earnings for liabilities still held at period end	58,483	(2,656)
Discontinued operations, held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	76,918
Total gains (losses) for the period included in earnings, Assets	3,928
Total gains (losses) for the period included in other comprehensive income, Assets	13,071
Purchases, Assets	1,120
Issues, Assets	0
Sales, Assets	(1,158)
Settlements, Assets	(9,254)
Transfers into Level 3, Assets	0
Transfers out of Level 3, Assets	0
Level 3 assets, Ending balance	84,625
Change in unrealized gains (losses) for assets still held at period end	15,113
Other
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 liabilities, Beginning balance	16,463	(2,212)
Total gains (losses) for the period included in earnings, Liabilities	54,070	(8,176)
Total gains (losses) for the period included in other comprehensive income, Liabilities	(10,269)	(2,341)
Purchases, Liabilities	0	0
Issues, Liabilities	54,527	8,145
Sales, Liabilities	0	0
Settlements, Liabilities	(19,043)	(12,450)
Transfers into Level 3, Liabilities	116,892	6,809
Transfers out of Level 3, Liabilities	(3,554)	(7,233)
Level 3 liabilities, Ending balance	121,484	3,576
Change in unrealized gains (losses) included in earnings for liabilities still held at period end	58,483	(2,656)
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	0
Total gains (losses) for the period included in earnings, Liabilities	0
Total gains (losses) for the period included in other comprehensive income, Liabilities	0
Purchases, Liabilities	0
Issues, Liabilities	73,595
Sales, Liabilities	0
Settlements, Liabilities	0
Transfers into Level 3, Liabilities	0
Transfers out of Level 3, Liabilities	0
Level 3 liabilities, Ending balance	73,595
Change in unrealized gains (losses) included in earnings for liabilities still held at period end	0
Trading securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	797,997	756,413
Total gains (losses) for the period included in earnings, Assets	125,172	4,592
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	333,302	268,583
Issues, Assets	0	0
Sales, Assets	(21,408)	(71,430)
Settlements, Assets	(9,255)	(259,220)
Transfers into Level 3, Assets	0	660
Transfers out of Level 3, Assets	(877)	0
Level 3 assets, Ending balance	1,224,931	699,598
Change in unrealized gains (losses) for assets still held at period end	121,950	4,423
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	1,711	1,280
Total gains (losses) for the period included in earnings, Assets	57	210
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	5,712	28,427
Issues, Assets	0	0
Sales, Assets	(5,765)	(28,469)
Settlements, Assets	(250)	(15)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	(194)	0
Level 3 assets, Ending balance	1,271	1,433
Change in unrealized gains (losses) for assets still held at period end	5	(16)
Trading account, debt securities | Corporate bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	683	77
Total gains (losses) for the period included in earnings, Assets	0	(69)
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	0	125
Issues, Assets	0	0
Sales, Assets	0	(100)
Settlements, Assets	0	0
Transfers into Level 3, Assets	0	650
Transfers out of Level 3, Assets	(683)	0
Level 3 assets, Ending balance	0	683
Change in unrealized gains (losses) for assets still held at period end	0	(69)
Trading account, debt securities | Residential mortgage-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance		1,000
Total gains (losses) for the period included in earnings, Assets		(2)
Total gains (losses) for the period included in other comprehensive income, Assets		0
Purchases, Assets		41,844
Issues, Assets		0
Sales, Assets		(42,823)
Settlements, Assets		(19)
Transfers into Level 3, Assets		0
Transfers out of Level 3, Assets		0
Level 3 assets, Ending balance		0
Change in unrealized gains (losses) for assets still held at period end		0
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	315,231	336,811
Total gains (losses) for the period included in earnings, Assets	72,667	4,193
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	324,375	166,760
Issues, Assets	0	0
Sales, Assets	(15,636)	0
Settlements, Assets	(259)	(251,750)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	696,378	256,014
Change in unrealized gains (losses) for assets still held at period end	71,580	5,297
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	313,166	277,635
Total gains (losses) for the period included in earnings, Assets	44,986	2,317
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	358,152	279,952
Change in unrealized gains (losses) for assets still held at period end	44,986	2,317
Trading account, equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	167,206	139,610
Total gains (losses) for the period included in earnings, Assets	7,462	(2,057)
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	3,215	31,427
Issues, Assets	0	0
Sales, Assets	(7)	(38)
Settlements, Assets	(8,746)	(7,436)
Transfers into Level 3, Assets	0	10
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	169,130	161,516
Change in unrealized gains (losses) for assets still held at period end	5,379	(3,106)
Trading derivatives—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	71,089	25,027
Total gains (losses) for the period included in earnings, Assets	(24,159)	17,711
Total gains (losses) for the period included in other comprehensive income, Assets	1,775	1,113
Purchases, Assets	612	36
Issues, Assets	(334)	(355)
Sales, Assets	0	0
Settlements, Assets	(19,889)	(9,069)
Transfers into Level 3, Assets	20,791	(463)
Transfers out of Level 3, Assets	(25,003)	(5,524)
Level 3 assets, Ending balance	24,882	28,476
Change in unrealized gains (losses) for assets still held at period end	(21,160)	15,161
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	37,493	14,179
Total gains (losses) for the period included in earnings, Assets	(39,744)	3,916
Total gains (losses) for the period included in other comprehensive income, Assets	30	653
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(1,901)	2,634
Transfers into Level 3, Assets	20,612	8
Transfers out of Level 3, Assets	(25,017)	198
Level 3 assets, Ending balance	(8,527)	21,588
Change in unrealized gains (losses) for assets still held at period end	(33,999)	3,764
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	7,463	7,283
Total gains (losses) for the period included in earnings, Assets	3,509	302
Total gains (losses) for the period included in other comprehensive income, Assets	392	147
Purchases, Assets	0	21
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(4,200)	773
Transfers into Level 3, Assets	179	(471)
Transfers out of Level 3, Assets	56	(5,857)
Level 3 assets, Ending balance	7,399	2,198
Change in unrealized gains (losses) for assets still held at period end	1,705	369
Trading derivatives—net | Equity contracts—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	23,420	623
Total gains (losses) for the period included in earnings, Assets	10,723	13,378
Total gains (losses) for the period included in other comprehensive income, Assets	1,355	319
Purchases, Assets	19	15
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(13,639)	(12,327)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	(42)	135
Level 3 assets, Ending balance	21,836	2,143
Change in unrealized gains (losses) for assets still held at period end	9,785	10,907
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)	(63)
Total gains (losses) for the period included in earnings, Assets	26	16
Total gains (losses) for the period included in other comprehensive income, Assets	(2)	(6)
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(5)	0
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	(26)	(53)
Change in unrealized gains (losses) for assets still held at period end	27	16
Trading derivatives—net | Credit derivatives—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	2,729	2,271
Total gains (losses) for the period included in earnings, Assets	1,236	113
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	(144)	(149)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	3,821	2,235
Change in unrealized gains (losses) for assets still held at period end	1,232	113
Trading derivatives—net | Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	29	734
Total gains (losses) for the period included in earnings, Assets	91	(14)
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	593	0
Issues, Assets	(334)	(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	379	365
Change in unrealized gains (losses) for assets still held at period end	90	(8)
Trading derivatives—net | Other | Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Ending balance	12,053
Available-for-sale Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	212,936	289,616
Total gains (losses) for the period included in earnings, Assets	(1,096)	(618)
Total gains (losses) for the period included in other comprehensive income, Assets	30,227	22,746
Purchases, Assets	170,610	118,700
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(141,788)	(170,482)
Transfers into Level 3, Assets	1,405	15,653
Transfers out of Level 3, Assets	0	(110)
Level 3 assets, Ending balance	272,294	275,505
Change in unrealized gains (losses) for assets still held at period end	23,794	7,452
Available-for-sale Securities | Discontinued operations, held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	65,262
Total gains (losses) for the period included in earnings, Assets	(1,261)
Total gains (losses) for the period included in other comprehensive income, Assets	10,114
Purchases, Assets	93
Issues, Assets	0
Sales, Assets	(1,158)
Settlements, Assets	(9,254)
Transfers into Level 3, Assets	0
Transfers out of Level 3, Assets	0
Level 3 assets, Ending balance	63,796
Change in unrealized gains (losses) for assets still held at period end	7,456
Available-for-sale Securities | Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Ending balance	67,266
Available-for-sale 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	11,890	16,718
Total gains (losses) for the period included in earnings, Assets	0	0
Total gains (losses) for the period included in other comprehensive income, Assets	(925)	1,104
Purchases, Assets	128	4,805
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(11,093)	(5,159)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	0	17,468
Change in unrealized gains (losses) for assets still held at period end	0	(30)
Available-for-sale Securities | Corporate bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	3,089	162
Total gains (losses) for the period included in earnings, Assets	(42)	(326)
Total gains (losses) for the period included in other comprehensive income, Assets	210	68
Purchases, Assets	1,824	557
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(57)	(57)
Transfers into Level 3, Assets	1,255	2,854
Transfers out of Level 3, Assets	0	(110)
Level 3 assets, Ending balance	6,279	3,148
Change in unrealized gains (losses) for assets still held at period end	165	(261)
Available-for-sale 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 Securities | Commercial mortgage-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance		1,599
Total gains (losses) for the period included in earnings, Assets		0
Total gains (losses) for the period included in other comprehensive income, Assets		104
Purchases, Assets		0
Issues, Assets		0
Sales, Assets		0
Settlements, Assets		(524)
Transfers into Level 3, Assets		0
Transfers out of Level 3, Assets		0
Level 3 assets, Ending balance		1,179
Change in unrealized gains (losses) for assets still held at period end		9
Available-for-sale Securities | Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	124,379	136,920
Total gains (losses) for the period included in earnings, Assets	(1,125)	(292)
Total gains (losses) for the period included in other comprehensive income, Assets	21,490	8,690
Purchases, Assets	168,312	113,311
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(130,638)	(141,823)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	182,418	116,806
Change in unrealized gains (losses) for assets still held at period end	14,106	3,495
Available-for-sale Securities | Other debt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	73,563	134,202
Total gains (losses) for the period included in earnings, Assets	71	0
Total gains (losses) for the period included in other comprehensive income, Assets	9,452	12,780
Purchases, Assets	346	27
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	0	(22,919)
Transfers into Level 3, Assets	150	12,799
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	83,582	136,889
Change in unrealized gains (losses) for assets still held at period end	9,523	4,239
Investment securities, equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	55,883	45,569
Total gains (losses) for the period included in earnings, Assets	1,881	2,588
Total gains (losses) for the period included in other comprehensive income, Assets	495	0
Purchases, Assets	9,884	3,602
Issues, Assets	0	0
Sales, Assets	(1,336)	(1,317)
Settlements, Assets	(806)	0
Transfers into Level 3, Assets	2,855	130
Transfers out of Level 3, Assets	(236)	(422)
Level 3 assets, Ending balance	68,620	50,150
Change in unrealized gains (losses) for assets still held at period end	1,737	1,614
Investment securities, equity securities | Nonmarketable equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	55,883	45,569
Total gains (losses) for the period included in earnings, Assets	1,881	2,588
Total gains (losses) for the period included in other comprehensive income, Assets	495	0
Purchases, Assets	9,884	3,602
Issues, Assets	0	0
Sales, Assets	(1,336)	(1,317)
Settlements, Assets	(806)	0
Transfers into Level 3, Assets	2,855	130
Transfers out of Level 3, Assets	(236)	(422)
Level 3 assets, Ending balance	68,620	50,150
Change in unrealized gains (losses) for assets still held at period end	1,737	1,614
Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	4,912	18,784
Total gains (losses) for the period included in earnings, Assets	357	(1,383)
Total gains (losses) for the period included in other comprehensive income, Assets	(3)	986
Purchases, Assets	89,081	1,758
Issues, Assets	0	0
Sales, Assets	0	(4,523)
Settlements, Assets	(111)	(57)
Transfers into Level 3, Assets	1,925	0
Transfers out of Level 3, Assets	0	(21)
Level 3 assets, Ending balance	96,161	15,544
Change in unrealized gains (losses) for assets still held at period end	357	¥ (1,382)
Other | Discontinued operations, held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	11,656
Total gains (losses) for the period included in earnings, Assets	5,189
Total gains (losses) for the period included in other comprehensive income, Assets	2,957
Purchases, Assets	1,027
Issues, Assets	0
Sales, Assets	0
Settlements, Assets	0
Transfers into Level 3, Assets	0
Transfers out of Level 3, Assets	0
Level 3 assets, Ending balance	20,829
Change in unrealized gains (losses) for assets still held at period end	¥ 7,657

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, 2022 JPY (¥) yr	Mar. 31, 2022 JPY (¥) yr
Interest rate contracts—net | Option model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ (8,527)	¥ 35,195
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	0.649	0.629
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	0.458	0.456
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	0.163	0.153
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	0.411	0.410
Interest rate contracts—net | Option model | Volatility | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.585	0
Interest rate contracts—net | Option model | Volatility | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.803	1
Interest rate contracts—net | Option model | Volatility | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.665	0.619
Foreign exchange contracts—net | Option model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 7,399	¥ 7,463
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	0.100
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	0.567	0.515
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	0
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	0.380	0.374
Foreign exchange contracts—net | Option model | Volatility | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.121	0.090
Foreign exchange contracts—net | Option model | Volatility | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.250	0.217
Foreign exchange contracts—net | Option model | Volatility | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.170	0.133
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	0.706	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	0.664	0.664
Equity contracts—net | Discounted cash flow
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 18,528	¥ 22,648
Equity contracts—net | Discounted cash flow | Term of litigation | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs | yr	1.3	1.8
Equity contracts—net | Discounted cash flow | Term of litigation | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs | yr	1.3	1.8
Equity contracts—net | Option model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 3,308	¥ 772
Equity contracts—net | Option model | Volatility | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.125	0.260
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	0.380
Equity contracts—net | Option model | Volatility | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.221	0.318
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	(0.584)	(0.584)
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	0.550	0.550
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	0.185	0.231
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	0.048	0.024
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	0.950
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	0.538	0.514
Foreign government and official institution bonds | Return on equity method
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 5,835	¥ 17,297
Foreign government and official institution bonds | Return on equity method | Probability of default | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.006	0.002
Foreign government and official institution bonds | Return on equity method | Probability of default | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.018	0.018
Foreign government and official institution bonds | Return on equity method | Probability of default | Weighted Average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.007	0.005
Foreign government and official institution bonds | Return on equity method | Recovery rate | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.350	0.350
Foreign government and official institution bonds | Return on equity method | Recovery rate | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.800	0.700
Foreign government and official institution bonds | Return on equity method | Recovery rate | Weighted Average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.709	0.644
Foreign government and official institution bonds | Return on equity method | Market-required return on capital | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.080	0.100
Foreign government and official institution bonds | Return on equity method | Market-required return on capital | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.100
Foreign government and official institution bonds | Return on equity method | Market-required return on capital | Weighted Average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.100	0.100
Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities | Discounted cash flow
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 97,896	¥ 98,325
Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities | Discounted cash flow | Probability of default | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		1
Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities | Discounted cash flow | Probability of default | Weighted Average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		1
Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities | Discounted cash flow | Recovery rate
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	1
Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities | Discounted cash flow | Recovery rate | Weighted Average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	1
Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities | Internal model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 612,726	¥ 238,864
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.854
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.693	0.699
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.693	0.699
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.030
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.030
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.010	0.006
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.017	0.010
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.015	0.009
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.181	0.290
Residential mortgage-backed securities, Commercial mortgage-backed securities and 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	0.181	0.290
Other debt securities | Discounted cash flow
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 423,731	¥ 369,445
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	0.008	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	0.028	0.028
Other debt securities | Return on equity method
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 57,962	¥ 58,677
Other debt securities | Return on equity method | Probability of default | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.001	0.001
Other debt securities | Return on equity method | Probability of default | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.023	0.080
Other debt securities | Return on equity method | Probability of default | Weighted Average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.004	0.004
Other debt securities | Return on equity method | Recovery rate | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.700	0.600
Other debt securities | Return on equity method | Recovery rate | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.900	0.900
Other debt securities | Return on equity method | Recovery rate | Weighted Average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.842	0.827
Other debt securities | Return on equity method | Market-required return on capital | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.080	0.080
Other debt securities | Return on equity method | Market-required return on capital | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.100	0.100
Other debt securities | Return on equity method | Market-required return on capital | Weighted Average
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	0.092	0.099

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, 2022	Mar. 31, 2022
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	¥ 26,110	¥ 20,997
Loans Receivable, Fair Value Disclosure	275,290	241,950
Loans held for sale	73,124	42,994
Collateral dependent loans	202,166	198,956
Premises and equipment	8,516	17,301
Intangible assets	259	359
Other assets	196,453	29,162
Investments in equity method investees	179,822	12,915
Other	16,631	16,247
Total	6,479,701	564,771
Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held for sale	5,973,073	255,002
Assets held for sale	5,973,073	255,002
Private Equity Funds
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities valued at net asset value	29,070	26,644
Unfunded commitments related to investment securities valued at net asset value	10,775	22,197
Level 1
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	0	0
Loans Receivable, Fair Value Disclosure	1,763	2,175
Loans held for sale	0	0
Collateral dependent loans	1,763	2,175
Premises and equipment	0	0
Intangible assets	0	0
Other assets	178,592	11,880
Investments in equity method investees	178,592	11,880
Other	0	0
Total	180,355	14,055
Level 1 | Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held for sale	0	0
Assets held for sale	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	13,366	9,839
Loans Receivable, Fair Value Disclosure	3,182	3,153
Loans held for sale	0	0
Collateral dependent loans	3,182	3,153
Premises and equipment	0	0
Intangible assets	0	0
Other assets	0	0
Investments in equity method investees	0	0
Other	0	0
Total	16,548	12,992
Level 2 | Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held for sale	0	0
Assets held for sale	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	12,744	11,158
Loans Receivable, Fair Value Disclosure	270,345	236,622
Loans held for sale	73,124	42,994
Collateral dependent loans	197,221	193,628
Premises and equipment	8,516	17,301
Intangible assets	259	359
Other assets	17,861	17,282
Investments in equity method investees	1,230	1,035
Other	16,631	16,247
Total	6,282,798	537,724
Level 3 | Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held for sale	5,973,073	255,002
Assets held for sale	5,973,073	255,002
Level 3 | Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value, Net Asset (Liability)	¥ 2,136,237	¥ 1,992,632

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		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	¥ 263,735	¥ 54,155
Loss on valuation adjustment for loans held for sale	209,107	0
Impairment reversal of assets held for sale	134,141	0
Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	209,107	0
Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale		134,141	¥ 134,141
Impairment reversal of assets held for sale	134,141
Investment securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	505	1,759
Loans
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	(66)	15,777
Loans | Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	451	759
Loans | Loans held for sale | Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	209,107	0
Loans | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	(517)	15,018
Premises and equipment
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	2,579	1,660
Intangible assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	849	17,459
Other assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	50,761	17,500
Other assets | Investments in equity method investees
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	46,928	7,020
Other assets | Other
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loss on valuation adjustment for loans held for sale	¥ 3,833	¥ 10,480

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, 2022	Sep. 30, 2021
Financial liabilities:
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	¥ 54,149	¥ 36,785
Financial liabilities: | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	54,149	36,785
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	(3,295)	4,383
Financial liabilities: | Other short-term borrowings | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	(3,295)	4,383
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	57,444	32,402
Financial liabilities: | Long-term debt | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	57,444	32,402
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	905,675	163,266
Financial assets: | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	(1,434,189)	41,324
Financial assets: | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	2,339,864	121,942
Financial assets: | Trading account securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	905,675	163,266
Financial assets: | Trading account securities | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	(1,434,189)	41,324
Financial assets: | Trading account securities | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	¥ 2,339,864	¥ 121,942

Fair Value (Differences between

Fair Value (Differences between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2022	Mar. 31, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining aggregate contractual amounts outstanding, Financial liabilities	¥ 525,683	¥ 511,851
Fair value	450,403	483,051
Fair value over (under) remaining aggregate contractual amounts outstanding, Financial liabilities	(75,280)	(28,800)
Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining aggregate contractual amounts outstanding, Financial liabilities	525,683	511,851
Fair value	450,403	483,051
Fair value over (under) remaining aggregate contractual amounts outstanding, Financial liabilities	¥ (75,280)	¥ (28,800)

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, 2022	Mar. 31, 2022
Carrying amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	¥ 51,856	¥ 50,972
Interest-earning deposits in other banks	49,828	58,848
Call loans and funds sold	1,615	1,316
Receivables under resale agreements	13,384	12,503
Receivables under securities borrowing transactions	4,487	4,496
Investment securities	13,847	4,595
Loans, net of allowance for credit losses	121,673	111,669
Other financial assets	10,244	9,207
Non-interest-bearing	36,289	36,496
Interest-bearing	194,938	188,112
Total deposits	231,227	224,608
Call money and funds purchased	3,452	2,416
Payables under repurchase agreements	34,638	27,726
Payables under securities lending transactions	902	1,022
Due to trust account and other short-term borrowings	12,776	22,728
Long-term debt	37,014	34,245
Other financial liabilities	9,749	7,560
Carrying amounts of investments in equity method investees	3,722	3,067
Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	51,856	50,972
Interest-earning deposits in other banks	49,828	58,848
Call loans and funds sold	1,615	1,316
Receivables under resale agreements	13,384	12,503
Receivables under securities borrowing transactions	4,487	4,496
Investment securities	13,630	4,606
Loans, net of allowance for credit losses	122,041	112,391
Other financial assets	10,244	9,207
Non-interest-bearing	36,289	36,496
Interest-bearing	194,926	188,080
Total deposits	231,215	224,576
Call money and funds purchased	3,452	2,416
Payables under repurchase agreements	34,638	27,726
Payables under securities lending transactions	902	1,022
Due to trust account and other short-term borrowings	12,776	22,728
Long-term debt	35,981	33,974
Other financial liabilities	9,749	7,560
Estimated fair value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	51,856	50,972
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	7,219	1,758
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	49,828	58,848
Call loans and funds sold	1,615	1,316
Receivables under resale agreements	13,384	12,503
Receivables under securities borrowing transactions	4,487	4,496
Investment securities	3,748	460
Loans, net of allowance for credit losses	285	245
Other financial assets	10,244	9,207
Non-interest-bearing	36,289	36,496
Interest-bearing	194,926	188,080
Total deposits	231,215	224,576
Call money and funds purchased	3,452	2,416
Payables under repurchase agreements	34,638	27,726
Payables under securities lending transactions	902	1,022
Due to trust account and other short-term borrowings	12,776	22,728
Long-term debt	35,927	33,974
Other financial liabilities	9,749	7,560
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	2,663	2,388
Loans, net of allowance for credit losses	121,754	112,144
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	54	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, 2022	Sep. 30, 2021
Equity Method Investment, Summarized Financial Information, Income and Loss
Net income applicable to Morgan Stanley	¥ (951,395)	¥ 756,833
Morgan Stanley
Equity Method Investment, Summarized Financial Information, Income and Loss
Net revenues	3,499,000	3,240,000
Total non-interest expenses	2,582,000	2,193,000
Income from continuing operations before income taxes	899,000	1,037,000
Net income applicable to Morgan Stanley	¥ 687,000	¥ 793,000

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Detail) - Subsequent Event ¥ / shares in Units, ¥ in Millions, $ in Billions	Dec. 01, 2022 JPY (¥) shares	Dec. 01, 2022 USD ($) shares	Nov. 30, 2022 JPY (¥) shares	Nov. 30, 2022 USD ($) shares	Nov. 14, 2022 JPY (¥) ¥ / shares shares	Dec. 01, 2022 USD ($)
Subsequent Event [Line Items]
Number of shares authorized to be repurchased (in shares)					300,000,000
Stock repurchase program, authorized amount | ¥					¥ 150,000
Treasury stock, shares retired (in shares)			418,926,300	418,926,300
MUFG Union Bank | MUAH
Subsequent Event [Line Items]
Dividends			¥ 628,700	$ 4.6
Common Stock
Subsequent Event [Line Items]
Dividends payable (in Yen per share) | ¥ / shares					¥ 16
Dividends payable, total amount | ¥					¥ 197,131
Shares repurchased as % of total shares					2.40%
Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank | MUAH
Subsequent Event [Line Items]
Proceeds from divestiture of subsidiaries	¥ 754,000	$ 5.5
Contingent consideration receivable	¥ 479,800					$ 3.5
Contingent consideration period	5 years	5 years
Value of consideration received including dividends	¥ 2,138,600					$ 15.6
Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank | USB Common Stock | MUAH
Subsequent Event [Line Items]
Consideration received (in shares)	44,000,000	44,000,000
Value of consideration received	¥ 276,100	$ 2
Interest acquired	3%	3%