Mitsubishi UFJ Financial (MUFG) 20-F 8 Jul 22 2022 FY Annual report (foreign) Financial data

Cover Page

Cover Page	12 Months Ended
	Mar. 31, 2022 shares
Document Information [Line Items]
Document Type	20-F
Document Registration Statement	false
Document Annual Report	true
Current Fiscal Year End Date	--03-31
Document Period End Date	Mar. 31, 2022
Document Fiscal Year Focus	2022
Document Transition Report	false
Document Shell Company Report	false
Entity File Number	000-54189
Entity Registrant Name	MITSUBISHI UFJ FINANCIAL GROUP, INC.
Entity Address, Address Line One	7-1, Marunouchi 2-chome
Entity Address, Address Line Two	Chiyoda-ku
Entity Address, City or Town	Tokyo
Entity Address, Postal Zip Code	100-8330
Entity Incorporation, State or Country Code	M0
Entity Address, Country	JP
Entity Common Stock, Shares Outstanding	13,281,995,120
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Accounting Standard	U.S. GAAP
Entity Shell Company	false
Amendment Flag	false
Document Fiscal Period Focus	FY
Entity Central Index Key	0000067088
Business Contact
Document Information [Line Items]
Entity Address, Address Line One	4-5, Marunouchi 1-chome
Entity Address, Address Line Two	Chiyoda-ku
Entity Address, City or Town	Tokyo
Entity Address, Postal Zip Code	100-8212
Contact Personnel Name	Masahisa Takahashi
City Area Code	81-3
Local Phone Number	3240-8111
Entity Address, Country	JP
Common stock
Document Information [Line Items]
Security 12(b) Title	Common stock, without par value
Security Exchange Name	NYSE
No Trading Symbol Flag	true
American Depositary Shares
Document Information [Line Items]
Security 12(b) Title	American depositary shares, each of which represents one share of common stock
Trading Symbol	MUFG
Security Exchange Name	NYSE

Audit Information

Audit Information	12 Months Ended
	Mar. 31, 2022
Audit information [Abstract]
Auditor Name	Deloitte Touche Tohmatsu LLC
Auditor Location	Tokyo, Japan
Auditor Firm ID	1044

Consolidated Balance Sheets

Consolidated Balance Sheets - JPY (¥) ¥ in Millions		Mar. 31, 2022	Mar. 31, 2021
ASSETS
Cash and due from banks (Note 9)		¥ 50,972,491	¥ 49,977,480
Interest-earning deposits in other banks (Note 9)		58,848,056	53,346,721
Cash, due from banks and interest-earning deposits in other banks		109,820,547	103,324,201
Call loans and funds sold		1,315,761	1,256,075
Receivables under resale agreements (Note 15)		12,503,396	13,779,763
Receivables under securities borrowing transactions (Note 15)		4,496,376	3,369,903
Trading account assets (including assets pledged that secured parties are permitted to sell or repledge of ¥5,032,178 and ¥8,857,073 in 2021 and 2022) (including ¥18,231,238 and ¥17,135,481 measured at fair value under the fair value option in 2021 and 2022) (Notes 9, 15, 23 and 31)		42,668,336	44,444,379
Investment securities (Notes 3, 9 and 31):
Available-for-sale debt securities (including assets pledged that secured parties are permitted to sell or repledge of ¥2,877,061 and ¥3,151,799 in 2021 and 2022)		45,798,442	47,117,813
Held-to-maturity debt securities (including assets pledged that secured parties are permitted to sell or repledge of ¥105,029 and ¥148,763 in 2021 and 2022) (fair value of ¥3,939,143 and ¥4,606,305 in 2021 and 2022)		4,595,109	3,903,763
Equity securities (including assets pledged that secured parties are permitted to sell or repledge of ¥1,532 and ¥741 in 2021 and 2022) (including ¥5,866,846 and ¥5,111,630 in 2021 and 2022 measured at fair value)		5,422,200	6,222,920
Total investment securities		55,815,751	57,244,496
Loans, net of unearned income, unamortized premiums and deferred loan fees (including assets pledged that secured parties are permitted to sell or repledge of ¥204,488 and ¥167,152 in 2021 and 2022) (Notes 4 and 9)		113,149,393	115,718,863
Allowance for credit losses (Note 4)	[1]	(1,470,701)	(1,348,391)
Net loans		111,678,692	114,370,472
Premises and equipment—net (Notes 5 and 7)		815,829	874,992
Customers’ acceptance liability		371,034	283,194
Intangible assets—net (Notes 2 and 6)		1,148,601	1,184,994
Goodwill (Notes 2 and 6)		303,611	370,852
Other assets (including assets held for sale relating to transferred business of MUFG Union Bank of 11,621,567 at March 31, 2022) (including net of allowance for credit losses of 14,741 and 13,998 at March 31, 2021 and 2022) (Notes 2,7,8,9,13,14 and 31)		26,712,084	13,321,304
Total assets		367,650,018	353,824,625
Deposits (Notes 9 and 10):
Domestic offices, Non-interest-bearing		33,584,539	32,287,997
Domestic offices, Interest-bearing		144,412,415	141,908,498
Overseas offices, Non-interest-bearing		2,911,513	6,233,108
Overseas offices, Interest-bearing		43,681,476	48,777,333
Total deposits		224,589,943	229,206,936
Call money, funds purchased		2,416,313	2,353,830
Payables under repurchase agreements (Notes 9, 15 and 16)		27,725,612	24,567,943
Payables under securities lending transactions (Notes 9, 15 and 16)		1,021,887	842,590
Due to trust account and other short-term borrowings (including ¥196,113 and ¥123,028 measured at fair value under the fair value option in 2021 and 2022) (Notes 9, 12 and 31)		22,850,600	18,079,554
Trading account liabilities (Notes 15, 23 and 31)		11,019,046	12,017,553
Bank acceptances outstanding		371,034	283,194
Other short-term borrowings		16,543,137	14,187,723
Long-term debt (including ¥402,823 and ¥483,051 measured at fair value under the fair value option in 2021 and 2022) (Notes 7, 9, 12 and 31)		34,696,599	35,157,651
Other liabilities (including liabilities held for sale relating to transferred business of MUFG Union Bank of ¥11,157,660 at March 31, 2022)(Notes 1, 2, 7, 8, 9, 13, 14, 15, 16, 26 and 31)		26,662,462	15,070,820
Total liabilities		351,353,496	337,580,071
Commitments and contingent liabilities (Notes 24 and 26)
Mitsubishi UFJ Financial Group shareholders’ equity:
Capital stock (Notes 17 and 18) - common stock authorized, 33,000,000,000 shares; common stock issued, 13,581,995,120 shares and 13,281,995,120 shares at March 31, 2021 and 2022, with no stated value		2,090,270	2,090,270
Capital surplus (Note 18)		5,327,772	5,533,761
Retained earnings (Notes 19 and 33):
Appropriated for legal reserve		239,571	239,571
Unappropriated retained earnings		8,172,646	8,589,900
Accumulated other comprehensive income (loss), net of taxes (Note 20)		227,033	(289,481)
Treasury stock, at cost - 737,282,154 common shares and 668,286,238 common shares at March 31, 2021 and 2022		(452,224)	(503,072)
Total Mitsubishi UFJ Financial Group shareholders’ equity		15,605,068	15,660,949
Noncontrolling interests		691,454	583,605
Total equity		16,296,522	16,244,554
Total liabilities and equity		367,650,018	353,824,625
Consolidated VIEs
ASSETS
Cash and due from banks (Note 9)		6,728	2,698
Interest-earning deposits in other banks (Note 9)		27,382	30,422
Trading account assets (including assets pledged that secured parties are permitted to sell or repledge of ¥5,032,178 and ¥8,857,073 in 2021 and 2022) (including ¥18,231,238 and ¥17,135,481 measured at fair value under the fair value option in 2021 and 2022) (Notes 9, 15, 23 and 31)		1,252,308	959,001
Investment securities (Notes 3, 9 and 31):
Total investment securities		1,824,892	1,727,292
Net loans		15,651,462	15,247,928
All other assets		195,795	161,075
Total assets		18,958,567	18,128,416
Deposits (Notes 9 and 10):
Total deposits		0	0
Other short-term borrowings		39,582	33,599
Long-term debt (including ¥402,823 and ¥483,051 measured at fair value under the fair value option in 2021 and 2022) (Notes 7, 9, 12 and 31)		449,231	457,763
Long-term debt		449,231	457,763
All other liabilities		95,219	103,457
Total liabilities		¥ 584,032	¥ 594,819
[1]New guidance on measurement of credit losses on financial instruments requires the allowance for credit losses to be measured using the current expected credit losses model from April 1, 2020. For additional information, refer to Note 1.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Statement of Financial Position [Abstract]
Trading account assets pledged that secured parties are permitted to sell or repledge	¥ 8,857,073	¥ 5,032,178
Trading account assets measured at fair value under fair value option	17,135,481	18,231,238
Available-for-sale debt securities pledged that secured parties are permitted to sell or repledge	3,151,799	2,877,061
Held-to-maturity debt securities pledged that secured parties are permitted to sell or repledge	148,763	105,029
Held-to-maturity debt securities, Fair value	4,606,305	3,939,143
Equity securities pledged that secured parties are permitted to sell or repledge	741	1,532
Equity securities measured at fair value	5,111,630	5,866,846
Loans, net of unearned income, unamortized premiums and deferred loan fees, pledged that secured parties are permitted to sell or repledge	167,152	204,488
Allowance for credit losses	13,998	14,741
Due to trust account and other short-term borrowings measured at fair value under fair value option	123,028	196,113
Long-term debt measured at fair value under fair value option	¥ 483,051	¥ 402,823
Common stock, authorized (in shares)	33,000,000,000	33,000,000,000
Common stock, issued (in shares)	13,281,995,120	13,581,995,120
Common stock, stated value (JPY per share)	¥ 0	¥ 0
Treasury stock, shares (in shares)	668,286,238	737,282,154

Consolidated Statements of Inco

Consolidated Statements of Income - JPY (¥) shares in Thousands, ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Interest income:
Loans, including fees (Note 4)	¥ 1,731,962	¥ 1,940,754	¥ 2,597,932
Deposits in other banks	57,392	56,555	167,267
Investment securities:
Interest	180,959	178,873	242,123
Dividends	133,537	119,387	172,382
Trading account assets	400,185	373,200	489,842
Call loans and funds sold	4,418	4,721	11,286
Receivables under resale agreements and securities borrowing transactions	22,485	78,506	246,311
Total	2,530,938	2,751,996	3,927,143
Interest expense:
Deposits	216,591	329,392	836,081
Call money and funds purchased	685	1,105	3,270
Payables under repurchase agreements and securities lending transactions	31,577	91,508	357,382
Due to trust account, other short-term borrowings and trading account liabilities	51,978	72,403	164,907
Long-term debt	259,526	253,494	322,704
Total	560,357	747,902	1,684,344
Net interest income	1,970,581	2,004,094	2,242,799
Provision for credit losses (Note 4)	277,995	484,210	321,713
Net interest income after provision for credit losses	1,692,586	1,519,884	1,921,086
Non-interest income:
Fees and commissions income (Note 27)	1,658,863	1,527,283	1,502,052
Foreign exchange gains (losses)—net (Note 28)	106,868	99,337	(281,790)
Trading account profits (losses)—net (Notes 28 and 31)	(824,420)	(410,368)	765,373
Investment securities gains (losses)—net (Note 3)	(119,026)	1,458,264	(532,248)
Equity in earnings of equity method investees—net (Note 14)	436,583	355,730	282,712
Gains on sales of loans (Note 4)	16,600	17,926	9,956
Gain on remeasurement of previously held equity method investment (Note 2)	0	0	41,218
Other non-interest income	119,321	109,615	88,422
Total	1,394,789	3,157,787	1,875,695
Non-interest expense:
Salaries and employee benefits (Note 13)	1,277,408	1,253,461	1,242,563
Occupancy expenses—net (Notes 5 and 26)	165,323	178,107	182,917
Fees and commissions expenses	310,861	318,797	332,033
Outsourcing expenses, including data processing	317,995	298,777	303,632
Depreciation of premises and equipment (Note 5)	82,652	87,305	113,489
Amortization of intangible assets (Note 6)	261,026	250,106	237,328
Impairment of intangible assets (Note 6)	33,301	21,680	3,732
Insurance premiums, including deposit insurance	95,551	90,529	98,441
Communications	57,369	59,798	59,976
Taxes and public charges	99,659	97,783	100,198
Impairment of goodwill (Note 6)	0	147,564	383,810
Provision for (reversal of) off-balance sheet credit instruments	46,339	(56,749)	(62,279)
Impairment of assets held for sale (Note 2)	134,141	0	0
Other non-interest expenses (Notes 5 and 26)	264,477	322,171	367,721
Total	3,146,102	3,069,329	3,363,561
Income (loss) before income tax expense (benefit)	(58,727)	1,608,342	433,220
Income tax expense (benefit)	(14,511)	444,948	114,505
Net income (loss) before attribution of noncontrolling interests	(44,216)	1,163,394	318,715
Net income attributable to noncontrolling interests	39,104	46,096	12,760
Net income (loss) attributable to Mitsubishi UFJ Financial Group	(83,320)	1,117,298	305,955
Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group	¥ (83,320)	¥ 1,117,298	¥ 305,955
Earnings per common share applicable to common shareholders of Mitsubishi UFJ Financial Group (Notes 19 and 22):
Basic earnings (loss) per common share—Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group (in Yen per share)	¥ (6.51)	¥ 86.88	¥ 23.69
Diluted earnings (loss) per common share—Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group (in Yen per share)	(6.93)	86.56	23.47
Cash dividend per common share (in YEN per share)	¥ 26	¥ 25	¥ 23.50
Weighted average common shares outstanding (in shares)	12,798,060	12,859,737	12,912,790
Weighted average diluted common shares outstanding (in shares)	12,798,060	12,859,737	12,912,956

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss) before attribution of noncontrolling interests	¥ (44,216)	¥ 1,163,394	¥ 318,715
Other comprehensive income (loss), net of tax (Note 20):
Net unrealized gains (losses) on investment securities	(261,493)	(70,776)	23,619
Net debt valuation adjustments	23,324	(83,364)	54,172
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges	(12,774)	32,175	10,642
Defined benefit plans (Note 13)	50,949	319,056	(131,523)
Foreign currency translation adjustments	752,479	(115,251)	(81,065)
Total	552,485	81,840	(124,155)
Comprehensive income	508,269	1,245,234	194,560
Net income attributable to noncontrolling interests	39,104	46,096	12,760
Other comprehensive income (loss) attributable to noncontrolling interests	35,971	(49,062)	11,993
Comprehensive income attributable to Mitsubishi UFJ Financial Group	¥ 433,194	¥ 1,248,200	¥ 169,807

Consolidated Statements of Equi

Consolidated Statements of Equity - JPY (¥) ¥ in Millions		Total	Capital stock	Capital surplus	Retained earnings appropriated for legal reserve	Unappropriated retained earnings	Unappropriated retained earnings Revision of Prior Period, Accounting Standards Update, Adjustment	Accumulated other comprehensive income (loss), net of taxes:	Accumulated other comprehensive income (loss), net of taxes: Revision of Prior Period, Accounting Standards Update, Adjustment	Treasury stock, at cost:	Total Mitsubishi UFJ Financial Group shareholders’ equity	Noncontrolling interests:	Noncontrolling interests: Revision of Prior Period, Accounting Standards Update, Adjustment
Balance at beginning of fiscal year at Mar. 31, 2019			¥ 2,090,270	¥ 5,577,186	¥ 239,571	¥ 8,094,026		¥ (284,269)		¥ (517,236)		¥ 785,200
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				2,596
Retirement of common stock				(58,626)						58,626
Other—net				12,364								247
Net income (loss) before attribution of noncontrolling interests		¥ 318,715				305,955
Common stock—¥23.50 per share in 2020, ¥25.00 per share in 2021, and ¥26.00 per share in 2022						(303,742)
Losses on sales of shares of treasury stock						(1)
Other comprehensive income (loss), net of taxes		(124,155)						(136,148)				11,993
Purchases of shares of treasury stock (Note 18)										(50,028)
Sales of shares of treasury stock										2,635
Net decrease (increase) resulting from changes in interests in consolidated subsidiaries, consolidated VIEs, and affiliated companies										16
Initial subscriptions of noncontrolling interests												58,228
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders												(8,627)
Decrease in noncontrolling interests related to deconsolidation of subsidiaries												(119,797)
Decrease in noncontrolling interests related to disposition of subsidiaries												(3,488)
Net income attributable to noncontrolling interests		(12,760)										12,760
Dividends paid to noncontrolling interests												(8,487)
Balance at end of fiscal year at Mar. 31, 2020		15,744,516	2,090,270	5,533,520	239,571	8,079,530		(420,417)		(505,987)	¥ 15,016,487	728,029
Balance at end of fiscal year (Effect of adopting new guidance by a foreign affiliated company) at Mar. 31, 2020	[1]						¥ (1,825)
Balance at end of fiscal year (Effect of adopting new guidance on leases) at Mar. 31, 2020							(14,883)
Balance at end of fiscal year (Effect of adopting new guidance on measurement of credit losses on financial instruments (Note 1)) at Mar. 31, 2020							0		¥ 0				¥ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				2,762
Retirement of common stock				0						0
Other—net				(2,521)								(63)
Net income (loss) before attribution of noncontrolling interests		1,163,394				1,117,298
Common stock—¥23.50 per share in 2020, ¥25.00 per share in 2021, and ¥26.00 per share in 2022						(321,089)
Losses on sales of shares of treasury stock						(1)
Other comprehensive income (loss), net of taxes		81,840						130,902				(49,062)
Purchases of shares of treasury stock (Note 18)										(20)
Sales of shares of treasury stock										2,598
Net decrease (increase) resulting from changes in interests in consolidated subsidiaries, consolidated VIEs, and affiliated companies										337
Initial subscriptions of noncontrolling interests												9,246
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders												(96,335)
Decrease in noncontrolling interests related to deconsolidation of subsidiaries												(22,430)
Decrease in noncontrolling interests related to disposition of subsidiaries												(23)
Net income attributable to noncontrolling interests		(46,096)										46,096
Dividends paid to noncontrolling interests												(6,523)
Balance at end of fiscal year at Mar. 31, 2021		16,244,554	2,090,270	5,533,761	239,571	8,589,900		(289,481)		(503,072)	15,660,949	583,605
Balance at end of fiscal year (Effect of adopting new guidance by a foreign affiliated company) at Mar. 31, 2021							0
Balance at end of fiscal year (Effect of adopting new guidance on leases) at Mar. 31, 2021							0
Balance at end of fiscal year (Effect of adopting new guidance on measurement of credit losses on financial instruments (Note 1)) at Mar. 31, 2021							(285,838)		34				(25,330)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				1,555
Retirement of common stock				(204,456)						204,456
Other—net				(3,088)								1
Net income (loss) before attribution of noncontrolling interests		(44,216)				(83,320)
Common stock—¥23.50 per share in 2020, ¥25.00 per share in 2021, and ¥26.00 per share in 2022						(333,934)
Losses on sales of shares of treasury stock						0
Other comprehensive income (loss), net of taxes		552,485						516,514				35,971
Purchases of shares of treasury stock (Note 18)										(158,529)
Sales of shares of treasury stock										5,581
Net decrease (increase) resulting from changes in interests in consolidated subsidiaries, consolidated VIEs, and affiliated companies										(660)
Initial subscriptions of noncontrolling interests												5,647
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders												67,300
Decrease in noncontrolling interests related to deconsolidation of subsidiaries												(14,468)
Decrease in noncontrolling interests related to disposition of subsidiaries												(80)
Net income attributable to noncontrolling interests		(39,104)										39,104
Dividends paid to noncontrolling interests												(25,626)
Balance at end of fiscal year at Mar. 31, 2022		¥ 16,296,522	¥ 2,090,270	¥ 5,327,772	¥ 239,571	¥ 8,172,646		¥ 227,033		¥ (452,224)	¥ 15,605,068	¥ 691,454
Balance at end of fiscal year (Effect of adopting new guidance by a foreign affiliated company) at Mar. 31, 2022							0
Balance at end of fiscal year (Effect of adopting new guidance on leases) at Mar. 31, 2022							0
Balance at end of fiscal year (Effect of adopting new guidance on measurement of credit losses on financial instruments (Note 1)) at Mar. 31, 2022							¥ 0		¥ 0				¥ 0
[1]The effect resulted from the adoption of new accounting guidance on “Measurement of Credit Losses on Financial Instruments.”

Consolidated Statements of Eq_2

Consolidated Statements of Equity (Parenthetical) - ¥ / shares	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividend per common share (in YEN per share)	¥ 26	¥ 25	¥ 23.50

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income (loss) before attribution of noncontrolling interests	¥ (44,216)	¥ 1,163,394	¥ 318,715
Adjustments to reconcile net income before attribution of noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization (Notes 5 and 6)	343,678	337,411	350,817
Impairment of goodwill (Note 6)	0	147,564	383,810
Impairment of intangible assets (Note 6)	33,301	21,680	3,732
Impairment of assets held for sale (Note 2)	134,141	0	0
Provision for credit losses (Note 4)	277,995	484,210	321,713
Employee benefit cost (income) for severance indemnities and pension plans (Note 13)	(25,675)	2,804	(6,917)
Investment securities (gains) losses—net	119,026	(1,458,264)	532,248
Amortization of premiums on investment securities	72,672	59,614	65,078
Changes in financial instruments measured at fair value under fair value option, excluding trading account securities—net (Note 31)	(55,634)	5,002	2,894
Foreign exchange (gains) losses—net	(345,968)	(103,917)	544,763
Equity in earnings of equity method investees—net	(436,583)	(355,730)	(282,712)
Provision (benefit) for deferred income tax expense	(370,668)	266,273	(60,967)
Decrease (increase) in trading account assets, excluding foreign exchange contracts	4,143,581	1,351,570	(4,902,492)
Increase (decrease) in trading account liabilities, excluding foreign exchange contracts	(2,195,400)	(1,463,152)	2,217,808
Net increase in collateral for derivative transactions	(824,720)	(421,781)	(217,864)
Net decrease (increase) in margin for listed derivative transactions	(103,568)	20,984	(279,844)
Decrease (increase) in cash collateral for the use of the Bank of Japan’s settlement infrastructure	65,838	(33,292)	(54,018)
Other—net	121,555	(269,437)	(292,664)
Net cash provided by (used in) operating activities	909,355	(245,067)	(1,355,900)
Cash flows from investing activities:
Proceeds from sales of Available-for-sale debt securities (including proceeds from debt securities under the fair value option) (Note 3)	58,611,669	62,660,266	60,731,107
Proceeds from maturities of Available-for-sale debt securities (including proceeds from debt securities under the fair value option) (Note 3)	36,056,569	43,245,884	24,335,639
Purchases of Available-for-sale debt securities (including purchases of debt securities under the fair value option) (Note 3)	(94,237,804)	(115,383,753)	(87,618,074)
Proceeds from maturities of Held-to-maturity debt securities	565,012	605,781	708,068
Purchases of Held-to-maturity debt securities	(1,712,488)	(382,159)	(495,346)
Proceeds from sales and redemption of Equity securities (including proceeds from equity securities under the fair value option)	2,212,801	1,903,784	3,871,908
Purchases of Equity securities (including purchases of equity securities under the fair value option)	(1,503,946)	(1,561,344)	(3,129,666)
Acquisition of Bank Danamon, a subsidiary of BK, net of cash acquired (Note 2)	0	0	(243,597)
Acquisition of FSI (formerly, Colonial First State Global Asset Management), subsidiaries of TB, net of cash acquired (Note 2)	0	0	(249,615)
Acquisition of DVB Bank’s Aviation Finance Division, net of cash acquired (Note 2)	0	0	(555,250)
Net cash paid for dispositions of certain business of MUAH	(724,428)	0	0
Net decrease (increase) in loans	164,122	2,939,996	(1,631,085)
Net decrease (increase) in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions	1,005,422	9,833,348	(13,714,288)
Proceeds from sales of premises and equipment	76,068	41,472	64,400
Capital expenditures for premises and equipment	(102,964)	(116,707)	(123,804)
Purchases of intangible assets	(264,038)	(250,061)	(308,081)
Proceeds from sales and dispositions of investments in equity method investees	65,398	64,011	171,882
Proceeds from sales of consolidated VIEs and subsidiaries—net	42,050	71,643	168,970
Other—net	(16,608)	(14,802)	(68,611)
Net cash provided by (used in) investing activities	236,835	3,657,359	(18,085,443)
Cash flows from financing activities:
Net increase in deposits	1,559,807	23,428,386	5,746,624
Net increase (decrease) in call money, funds purchased, and payables under repurchase agreements and securities lending transactions	1,128,806	(8,523,347)	8,077,351
Net increase (decrease) in due to trust account and other short-term borrowings	4,404,313	(939,069)	9,944,171
Proceeds from issuance of long-term debt	4,659,212	18,707,004	4,999,531
Repayments of long-term debt	(5,466,007)	(11,360,120)	(4,983,073)
Proceeds from sales of treasury stock	2,688	899	1,235
Payments for acquisition of treasury stock (Note 18)	(158,529)	(20)	(50,028)
Dividends paid	(333,844)	(321,024)	(303,728)
Dividends paid by subsidiaries to noncontrolling interests	(25,626)	(6,523)	(8,487)
Other—net	(385,778)	(22,566)	358,922
Net cash provided by financing activities	5,385,042	20,963,620	23,782,518
Effect of exchange rate changes on cash and cash equivalents	1,251,522	397,287	(362,652)
Net increase in cash and cash equivalents	7,782,754	24,773,199	3,978,523
Cash and cash equivalents at beginning of fiscal year	103,328,790	78,555,591	74,577,068
Cash and cash equivalents:
Cash, due from banks and interest-earning deposits in other banks	109,820,547	103,324,201	78,549,712
Restricted cash included in other assets	5,778	4,589	5,879
Cash and cash equivalents classified as assets held for sale included in other assets (Note 2)	1,285,219	0	0
Cash and cash equivalents at end of fiscal year	111,111,544	103,328,790	78,555,591
Cash paid during the fiscal year for:
Interest	596,453	879,917	1,759,239
Income taxes, net of refunds	220,139	124,705	128,124
Non-cash investing and financing activities:
Assets acquired under finance lease arrangements (Note 7)	4,055	3,487	12,754
Assets acquired under operating lease arrangements (Note 7)	48,095	50,564	46,482
Acquisition of Bank Danamon, a subsidiary of BK (Note 2):
Fair value of assets acquired, excluding cash and cash equivalents	0	0	1,811,160
Fair value of liabilities assumed	0	0	1,242,115
Fair value of noncontrolling interests	0	0	51,314
Acquisition of FSI (formerly, Colonial First State Global Asset Management), subsidiaries of TB (Note 2):
Fair value of assets acquired, excluding cash and cash equivalents	0	0	332,914
Fair value of liabilities assumed	0	0	68,519
Acquisition of DVB Bank’s Aviation Finance Division (Note 2):
Fair value of assets acquired	0	0	572,487
Fair value of liabilities assumed	0	0	2,599
Reclassification of assets and liabilities in transferred business of MUFG Union Bank to assets and liabilities held for sale (Note 2)：
Assets reclassified, excluding cash and cash equivalents	10,336,348	0	0
Liabilities reclassified	11,157,660	0	0
Dispositions of certain business of MUAH:
Assets transferred, excluding cash and cash equivalents	4,477	0	0
Liabilities transferred	¥ 758,654	¥ 0	¥ 0

Basis of Financial Statements a

Basis of Financial Statements and Summary of Significant Accounting Policies	12 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Basis of Financial Statements and Summary of Significant Accounting Policies	BASIS OF FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 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” or “SCHD”), 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 29 for more information by business segment. Basis of Financial Statements The accompanying consolidated financial statements are presented in Japanese yen, the currency of the country in which MUFG is incorporated and principally operates. The accompanying 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 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. Fiscal years of certain subsidiaries, which end on December 31, and MUFG’s fiscal year, which ends on March 31, have been treated as coterminous. For the fiscal years ended March 31, 2020, 2021 and 2022, the effect of recording intervening events for the three-month periods ended March 31 on MUFG’s proportionate equity in net income of subsidiaries with fiscal years ended on December 31, would have resulted in a decrease of ¥164.48 billion, an increase of ¥157.32 billion, and a decrease of ¥60.64 billion to net income attributable to Mitsubishi UFJ Financial Group, respectively. No intervening events occurred during each of the three-month periods ended March 31, 2020, 2021 and 2022 which, if recorded, would have had material effects on consolidated total assets, loans, total liabilities, deposits or total equity as of March 31, 2020, 2021 and 2022. Use of Estimates The preparation of 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 consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to management judgment primarily relate to the allowance for credit losses, the valuation of deferred tax assets, the valuation of financial instruments, the accounting for goodwill and intangible assets, impairment of investment securities, the allowances for repayment of excess interest and accrued severance indemnities and pension liabilities. Summary of Significant Accounting Policies Significant accounting policies applied in the accompanying consolidated financial statements are summarized below: Consolidation —The accompanying consolidated financial statements include the accounts of MUFG, its subsidiaries and certain variable interest entities (“VIE”s) (together, the “MUFG Group”). In situations in which the MUFG Group has a controlling financial interest in other entities, including certain VIEs, such entities are consolidated and noncontrolling interests, if any, are recorded in Total equity. Intercompany transactions and balances have been eliminated. Investments in affiliated companies (companies over which the MUFG Group has the ability to exercise significant influence) are accounted for by the equity method of accounting and are reported in Other assets. The MUFG Group’s equity interest in the earnings of these equity investees and other-than-temporary impairment (“OTTI”) are reported in Equity in earnings of equity method investees-net. The MUFG Group recognizes an impairment loss on investments in equity method investees that is other-than-temporary. The MUFG Group determines whether loss on investments is other-than-temporary, through consideration of various factors, such as inability to recover the carrying amount of the investment, the inability of the investee to sustain an earnings capacity that would justify the carrying amount of the investment, the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the investees, and the intent and ability to retain its investment in the investees for a period of time sufficient to allow for any anticipated recovery in the fair value. The MUFG Group also evaluates additional factors, such as the condition and trend of the economic cycle, and trends in the general market. The MUFG Group consolidates VIEs if it has the power to direct the activities of a VIE which most significantly impact the VIE’s economic performance and has the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. To assess whether a VIE should be consolidated or not, the MUFG Group considers all factors, such as the purpose and design of the VIE, contractual arrangements, and the MUFG Group’s involvement in both the establishment of the VIE and day-to-day activities of the VIE. The MUFG Group considers a right to make the most significant decisions affecting a VIE to determine whether it is deemed to have the power to direct the activities of the VIE. Furthermore, the MUFG Group considers its economic interests in the VIE, including investments in debt or equity instruments issued by the VIE, liquidity and credit enhancement, and guarantees to determine whether such interests are potentially significant to the VIE or not. Assets that the MUFG Group holds in an agency, fiduciary or trust capacity are not assets of the MUFG Group and, accordingly, are not included in the accompanying consolidated balance sheets. Cash Flows —For the purposes of reporting cash flows, cash and cash equivalents consist of Cash and due from banks, Interest-earning deposits in other banks, and certain restricted cash included in Other assets. Restricted cash included in cash and cash equivalents represents cash or deposits subject to withdrawal or usage restrictions, and mainly consist of reserves on deposits with the Bank of Japan and similar reserves required for foreign offices and subsidiaries engaged in banking businesses in foreign countries. Cash flows from qualified hedging activities are classified in the same category as the items being hedged. Translation of Foreign Currency Financial Statements and Foreign Currency Transactions —Financial statements of overseas entities are translated into Japanese yen using the respective fiscal year-end exchange rates for assets and liabilities. Income and expense items are translated at average rates of exchange for the respective fiscal years. Foreign currency translation gains and losses related to the financial statements of overseas entities of the MUFG Group, net of related income tax effects, are credited or charged directly to Foreign currency translation adjustments, a component of Accumulated other comprehensive income (“Accumulated OCI”). Tax effects of gains and losses on foreign currency translation of the financial statements of overseas entities are not recognized unless it is apparent that the temporary differences will reverse in the foreseeable future. Foreign currency-denominated assets and liabilities are translated into the functional currencies of the individual entities included in consolidation at the respective fiscal year-end foreign exchange rates. Foreign currency-denominated income and expenses are translated using average rates of exchange for the respective fiscal years. Gains and losses from such translation are included in Foreign exchange gains (losses)—net, as appropriate. Repurchase Agreements, Securities Lending and Other Secured Financing Transactions —Securities sold with agreements to repurchase (“repurchase agreements”), securities purchased with agreements to resell (“resale agreements”) and securities lending and borrowing transactions are accounted for as secured financing or lending transactions, if the transferor has not surrendered control over the securities. Repurchase agreements and resale agreements are generally carried at the amounts at which the securities will be subsequently sold or repurchased, and securities lending and borrowing transactions are generally carried at the amount of cash collateral advanced or received. If they meet the relevant conditions for the surrender of control, they are accounted for as sales of securities with related off-balance sheet forward repurchase commitments or purchases of securities with related off-balance sheet forward resale commitments. For the fiscal years ended March 31, 2020, 2021 and 2022, there were no such transactions accounted for as sales or purchases. Collateral —For secured lending transactions, including resale agreements, securities borrowing transactions, commercial lending and derivative transactions, the MUFG Group, as a secured party, generally has the right to require the counterparties to provide collateral, including letters of credit, cash, securities and other financial assets. For most secured lending transactions, the MUFG Group maintains strict levels of collateralization governed by a daily mark-to-market analysis. Financial assets pledged as collateral are generally negotiable financial instruments and are permitted to be sold or repledged by secured parties. If the MUFG Group sells these financial assets received as collateral, it recognizes the proceeds from the sale and its obligation to return the collateral. For secured borrowing transactions, principally repurchase agreements and securities lending transactions and derivative transactions, where the secured party has the right to sell or repledge financial assets pledged as collateral, the MUFG Group separately discloses those financial assets pledged as collateral in the accompanying consolidated balance sheets. Trading Account Securities —Securities and money market instruments held in anticipation of short-term market movements and for resale to customers are included in Trading account assets, and short trading positions of these instruments are included in Trading account liabilities. Trading positions are carried at fair value in the accompanying consolidated balance sheets and recorded on a trade date basis. Changes in the fair value of trading positions are recognized in Trading account profits (losses). The MUFG Group has elected the fair value option for certain foreign securities. See Note 31 for a further discussion of fair value option. Investment Securities —Debt securities for which the MUFG Group has both the ability and positive intent to hold to maturity are classified as Held-to-maturity debt securities and are carried at amortized cost. Debt securities that the MUFG Group may not hold to maturity other than those classified as Trading account securities, are classified as Available-for-sale debt securities, and are carried at their fair values, with unrealized gains and losses reported on a net-of-tax basis within Accumulated OCI, which is a component of equity. Available-for-sale debt securities are considered to be impaired if the fair value is less than the amortized cost basis. An impairment loss is recognized in earnings for a security if the MUFG Group has intent to sell such a debt security or if it is more likely than not the MUFG Group will be required to sell such a debt security before recovery of its amortized cost basis. If not, the credit component of an impairment loss is recognized in earnings by recording an allowance for credit losses, limited by the amount of impairment loss. However, the noncredit component of an impairment loss is recognized in Accumulated OCI. In determining whether a credit loss exists, the MUFG Group generally considers factors such as the financial condition of the issuer and the extent of decline in fair value. For Held-to-maturity debt securities, an allowance for expected credit losses over the remaining expected life is required to be provided. Equity securities include marketable equity investment securities and nonmarketable equity investment securities. Marketable equity investment securities are measured at fair value with unrealized gains or losses reflected in net income. Nonmarketable equity investment securities are primarily measured at cost minus impairment, if any, plus or minus changes resulting from observable price changes. Nonmarketable equity investment securities held by subsidiaries that are investment companies or brokers and dealers, are subject to the specialized industry accounting principles for investment companies and brokers and dealers. Securities of those subsidiaries are carried at their fair values. Interest and dividends on investment securities are reported in Interest income. Dividends are recognized when the shareholder right to receive the dividend is established. Gains and losses on disposition of investment securities are computed using the average cost method and are recognized on the trade date. Derivative Financial Instruments —The MUFG Group engages in derivative activities involving swaps, forwards, futures, options, and other types of derivative contracts. Derivatives are used in trading activities to generate trading revenues and fee income for its own account and to respond to customers’ financial needs. Derivatives are also used to manage counterparty credit risk and market risk exposures to fluctuations in interest and foreign exchange rates, equity and commodity prices. Derivatives entered into for trading purposes are carried at fair value and are reported as Trading account assets or Trading account liabilities, as appropriate. The fair values of derivative contracts executed with the same counterparty under legally enforceable master netting agreements are presented on a gross basis. Changes in the fair value of such contracts are recognized currently in Foreign exchange gains (losses)—net with respect to foreign exchange contracts and in Trading account profits (losses)—net with respect to interest rate contracts and other types of contracts. Embedded features that are not clearly and closely related to the host contracts and meet the definition of derivatives are separated from the host contracts and measured at fair value unless the contracts embedding the derivatives are measured at fair value in their entirety. Derivatives are also used to manage exposures to fluctuations in interest and foreign exchange rates arising from mismatches of asset and liability positions. Certain of those derivatives are designated as hedging instruments and qualify for hedge accounting. The MUFG Group designates a derivative as a hedging instrument at the inception of each such hedge relationship, and it documents, for such individual hedging relationships, the risk management objective and strategy, including the item being hedged, the specific risk being hedged and the method used to assess the hedge effectiveness. In order for a hedging relationship to qualify for hedge accounting, the changes in the fair value of the derivative instruments must be highly effective in achieving offsetting changes in fair values or variable cash flows of the hedged items attributable to the risk being hedged. All qualifying hedging derivatives are valued at fair value and included in Other assets or Other liabilities, as appropriate. For fair value hedges, the changes in the fair value of a hedging instrument are recognized in the same income statement line as the hedged item. For cash flow hedges, the changes in the fair value of a hedging instrument are recognized in Accumulated OCI. Amounts realized on cash flow hedges related to variable rate loans are recognized in Net interest income in the period when the cash flow from the hedged item is realized. Any difference that arises from gains or losses on hedging derivatives offsetting corresponding gains or losses on the hedged items, and gains and losses on derivatives attributable to the risks excluded from the assessment of hedge effectiveness are recognized in earnings. Loans —Loans originated by the MUFG Group (“originated loans”) are carried at the principal amount outstanding, adjusted for unearned income and deferred net nonrefundable loan fees and costs. Originated loans held and intended for dispositions or sale in secondary markets are transferred to the held-for-sale classification and carried at the lower of cost or estimated fair value generally on an individual loan basis. Loan origination fees, net of certain direct origination costs, are deferred and recognized over the contractual life of the loan as an adjustment to yield using a method that approximates the interest method. The MUFG Group classifies its loan portfolio into the following portfolio segments—Commercial, Residential, Card, MUFG Americas Holdings Corporation (“MUFG Americas Holdings” or “MUAH”), Bank of Ayudhya Public Company Limited (“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. Past due status is determined based on the contractual terms of the loan and the actual number of days since the date the last payment was made. Originated loans are generally placed on nonaccrual status when substantial doubt exists as to the full and timely collection of either principal or interest, specifically 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, MUFG Americas Holdings, and Krungsri segments, and six months or more with respect to loans within the Residential segment. A nonaccrual loan may be restored to an accrual status when interest and principal payments become current and management expects that the borrower will make future contractual payments as scheduled. When a loan is placed on nonaccrual status, interest accrued but not received is generally reversed against interest income. Cash receipts on nonaccrual loans, for which the ultimate collectibility of principal is uncertain, are applied as principal reductions; otherwise, such collections are credited to income. The MUFG Group modifies certain loans in conjunction with its loss-mitigation activities. Through these modifications, concessions are granted to a borrower who is experiencing financial difficulty, generally in order to minimize economic loss, to avoid foreclosure or repossession of collateral, and to ultimately maximize payments received from the borrower. The concessions granted vary by portfolio segment, by program, and by borrower-specific characteristics, and may include interest rate reductions, term extensions, payment deferrals, and partial principal forgiveness. Loan modifications that represent concessions made to borrowers who are experiencing financial difficulties are identified as troubled debt restructurings (“TDRs”). Generally, accruing loans that are modified in a TDR remain as accruing loans subsequent to the modification, and nonaccrual loans remain as nonaccrual. However, if a nonaccrual loan has been modified as a TDR, the borrower is not delinquent under the modified terms, and demonstrates that its financial condition has improved, the MUFG Group may reclassify the loan to accrual status. This determination is generally performed at least once a year through a detailed internal credit rating review process. Once a nonaccrual loan is deemed to be a TDR, the MUFG Group will continue to designate the loan as a TDR even if the loan is reclassified to accrual status. Loan Securitization —The MUFG Group securitizes and services commercial, industrial, and residential loans in the normal course of business. The MUFG Group accounts for a transfer of loans in a securitization transaction as a sale if it meets relevant conditions for the surrender of control. Otherwise, the transfer is accounted for as a collateralized borrowing transaction. When a securitization is accounted for as a sale, the proceeds from a sale of financial assets consist of the cash and any other assets obtained, including beneficial interests and separately recognized servicing assets, in the transfer less any liabilities incurred, including separately recognized servicing liabilities. All proceeds and reductions of proceeds from a sale shall be initially measured at fair value. Allowance for Credit Losses (Loans) —The MUFG Group maintains an allowance for credit losses, which is a valuation account that is deducted from the amortized cost basis of the loans to present the net amount expected to be collected on the loans. The amount necessary to adjust the allowance for credit losses for management’s current estimate of expected credit losses on loans is reported in net income as a credit loss expense. Actual credit losses (amounts deemed uncollectible, in whole or in part), net of recoveries, are generally determined based on detailed loan reviews and a credit assessment by management at each balance sheet date and are deducted from the allowance for credit losses as net charge-offs. The MUFG Group generally applies its charge-off policy to all loans in its portfolio regardless of the type of borrower. Management believes that the provision for credit losses is adequate. Key elements relating to the policies and discipline used in determining the allowance for credit losses are credit classification and the related borrower categorization process. The categorization is based on conditions that may affect the ability of borrowers to service their debt, taking into consideration current financial information, historical payment experience, credit documentation, public information, analyses of relevant industry segments and existing economic conditions. In determining the appropriate level of the allowance, the MUFG Group evaluates the probable loss by collateral value, historical loss experience, probability of insolvency and category of loan based on its type and characteristics. For the allowance methodology, the MUFG Group uses quantitative models that incorporate economic forecast scenarios. These economic forecast scenarios include macroeconomic variables that have historically been correlated with historical credit losses. These variables include, but are not limited to, unemployment rates and gross domestic product. As any one economic forecast scenario is inherently uncertain, multiple economic forecast scenarios were leveraged. The macroeconomic variables in multiple economic forecast scenarios and weightings given to each scenario depend on a variety of factors including recent economic conditions and views of internal, as well as third-party, economists. The allowance for credit losses for TDR is measured using the discounted cash flow method, or based on the fair value of the collateral if the loan is collateral dependent. The allowance for credit losses includes qualitative adjustments to cover losses that are expected but were not reflected in the modeled allowance. For example, factors that the MUFG considers include remaining time to maturity and extent of prepayments, credit concentration, the volume and severity of past due, changes in lending policy and procedures, among others. In all segments, when estimating the allowance for credit losses, significant management assumptions are incorporated in economic variables, qualitative adjustments, or both to capture the heightened volatility and uncertainty in the economy due to the COVID-19 pandemic. 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. The methodologies used to estimate the allowance and the charge-off policy for the major portfolio segments are as follows: Commercial segment In the Commercial segment, expected credit losses of loans are measured on a collective basis when similar risk characteristics exist. Risk characteristics that are considered for aggregation of loans include internal credit ratings, geographical location, and industry of the borrower. The collectively-assessed allowance is measured over the contractual term of the loans that is adjusted for expected prepayments, using probability of default (“PD”), loss given default (“LGD”) and exposure at default (“EAD”) loss forecasting model, which is based on historical information and adjusted to incorporate expectations of future economic conditions considering economic variables such as gross domestic product and unemployment rates. The PD is determined as the marginal PD that denotes the likelihood that a borrower is observed to experience the default during a defined period of time, based on internal credit rating, geographical location, or industry of the borrower. The LGD is determined as the estimated loss on the loan that would be realized upon the default of the borrower, mainly based on the historical experience of collections against loans in default. The PD and LGD are continually reviewed to determine the appropriate level of the allowance for credit loss. Qualitative adjustments are made to cover losses that are expected but not adequately captured in the quantitative forecasting model or economic assumptions, considering factors such as remaining time to maturity and extent of prepayments, the volume and severity of past due loans, changes in lending policy and procedures, the industry in which a borrower operates, and changes in other external factors. The collectively-assessed allowance methodology incorporates an economic forecast over a three-year period. Beyond the three-year economic forecast, the allowance methodology reverts to an average historical loss information on a straight-line basis over a two-year period. When a loan does not share risk characteristics with other loans, expected credit losses for that loan are measured on an individual basis. Individually-assessed allowance is measured based on the present value of expected future cash flows discounted at the loan’s original effective interest rate, or the fair value of the collateral if the loan is collateral dependent. The allowance for loans that have been modified into a TDR or reasonably expected to be modified into TDR are measured on an individual basis. For nonaccrual TDRs, the allowance for credit losses is provided for these loans using the discounted cash flow method, or based on the fair value of the collateral. For TDRs accounted for as accruing loans, the allowance for credit losses is determined by discounting the estimated future cash flows using the original effective interest rate of the loans prior to modification. In relation to loans categorized as Legally/Virtually Bankrupt, the carrying amount of loans less estimated value of the collateral and guaranteed amount is generally considered uncollectible, and is charged off. Residential segment In the Residential segment, the loans are comprised of smaller-balance homogeneous loans and expected credit losses of loans are measured on a collective basis. The allowance for credit losses is measured over the contractual term of the loans that is adjusted for expected prepayments, using the state transition probability matrix, which captures delinquency status changes and prepayments by loans’ remaining term, and is based on historical information and adjusted to incorporate expectations of future economic conditions considering economic variables, such as unemployment rates. The LGD is also used to capture the estimated loss on the loan that would be realized upon the default of the borrower. The collectively-assessed allowance methodology incorporates an economic forecast over a three-year period. Beyond the three-year economic forecast, the allowance methodology reverts to average historical loss information on a straight-line basis over a two-year period. The allowance for loans that have been modified into a TDR or reasonably expected to be modified TDR are measured on an individual basis. For nonaccrual TDRs, the allowance for credit losses is provided for these loans using the discounted cash flow method, or based on the fair value of the collateral. For TDRs accounted for as accruing loans, the allowance for credit losses is determined by discounting the estimated future cash flows using the original effective interest rate of the loans prior to modification. In relation to loans that are in past due status over a certain period of time and deemed uncollectible, the carrying amount of loans less estimated value of the collateral and guaranteed amount is generally considered uncollectible and charged off. Card segment In the Card segment, the loans are smaller-balance homogeneous loans and expected credit losses of loans are measured on a collective basis. The allowance for credit losses is measured over the contractual term of the loans that is adjusted for expected prepayments, using the state transition probability matrix, which captures delinquency status changes and prepayments by loans’ remaining term, and is based on historical information and adjusted to incorporate expectations of future economic conditions considering economic variables, such as unemployment rate. The collectively-assessed allowance methodology incorporates an economic forecast over a three-year period. Beyond the three-year economic forecast, the allowance methodology reverts to average historical loss information. The allowance for loans that have been modified into a TDR or reasonably expected to be modified TDR are measured on an individual basis, and the allowance for credit losses is determined using the discounted cash flow method whereby the estimated future cash flows are discounted using the original effective interest rate of the loans prior to modification. In relation to loans that are in past due status over a certain period of time and deemed uncollectible, the amount of loans is generally fully charged off. MUFG Americas Holdings segment In the MUFG Americas Holdings segment, expected credit losses are measured on a collective basis when similar risk characteristics exist. The allowance for credit loss is calculated as the product of PD, LGD, and EAD modeled parameters that are projected over the assets’ remaining contractual lives.Expected loss models use historical loss information and a variety of economic assumptions that consider economic variables such as gross domestic product and unemployment rates, to estimate PD, LGD, and EAD. These models are tailored to different loan segments, classes and products by changing the economic variables or their weighting in the calculation used to estimate expected losses. The collectively-assessed allowance methodology incorporates an economic forecast over a three-year period. Beyond the two-year economic forecast, the allowance methodology reverts to average historical loss information on a straight-line basis over two-year period. Loans that do not share risk characteristics are evaluated individually to determine the allowance balance. Individually-assessed allowance is measured based on

Business Developments

Business Developments	12 Months Ended
	Mar. 31, 2022
Business Combinations [Abstract]
Business Developments	BUSINESS DEVELOPMENTS Acquisition of shares in Bank Danamon in Indonesia On December 26, 2017, MUFG Bank entered into conditional share purchase agreements with Asia Financial (Indonesia) Pte. Ltd. (“AFI”) and other affiliated entities (the “Sellers”) to acquire their 73.8% equity interests in an Indonesian bank, PT Bank Danamon Indonesia, Tbk. (“Danamon”), subject to applicable regulatory approvals. Danamon, which was established in 1956, is the fifth most profitable Indonesian commercial bank in terms of net income. Danamon provides banking and financial products and services to consumer, small and medium enterprise (“SME”) and corporate customers, with a network of around 900 offices in Indonesia. MUFG Bank intends to establish an integrated and comprehensive services platform that serves as a gateway for clients wishing to make inroads into Indonesia’s growing economy as well as local companies seeking to expand into the region. This investment is also expected to strategically allow MUFG Bank to benefit from Danamon’s foothold in the developing local retail and SME segments to deepen its banking franchise in Indonesia. This strategic investment by MUFG Bank was executed through three steps (the “Proposed Transaction”), and the completion of the Proposed Transaction resulted in MUFG Bank becoming the largest shareholder in Danamon and Danamon becoming a consolidated subsidiary of MUFG Bank. In Step 1, MUFG Bank acquired an initial 19.9% equity interest in Danamon from the Sellers on December 29, 2017, based on a price of IDR 8,323 (approximately ¥70 (1) ) per share, for an investment amount of IDR 15,875 billion (approximately ¥133 billion (1) ). The price was based on a price book-value ratio of 2.0 calculated on the basis of Danamon’s net assets as of September 30, 2017 with certain adjustments applied. AFI continues to be the majority shareholder in Danamon after closing of Step 1. MUFG Bank classified Danamon’s equity securities as Available-for-sale securities on the acquisition date. In Step 2, MUFG Bank acquired an additional 20.1% equity interest in Danamon from the Sellers on August 3, 2018, based on a price of IDR 8,921 (approximately ¥69 (2) ) per share, for an investment amount of IDR 17,187 billion (approximately ¥132.3 billion (2) ). The price was based on a price book-value ratio of 2.0 calculated on the basis of Danamon’s net assets as of June 30, 2018 with certain adjustments applied. As a result, equity interest in Danamon increased to 40%, and MUFG Bank started to apply the equity method of accounting for its investment in Danamon during the six months ended September 30, 2018. In Step 3, MUFG Bank acquired an additional 54.0% equity interest in Danamon from AFI and other shareholders on April 29, 2019, based on a price of IDR 9,590 (approximately ¥77 (3) ) per share, for an investment amount of IDR 50 trillion (approximately ¥397 billion) in cash. As a result, equity interest in Danamon increased to 94.0%, and Danamon became a consolidated subsidiary of MUFG Bank. The MUFG Group recorded goodwill of ¥254,271 million, none of which is deductible for income tax purposes and intangible assets of ¥146,899 million. The MUFG Group also recorded noncontrolling interests of ¥51,314 million at fair value determined by a quoted market price as of the acquisition date. The equity interest in Danamon held by MUFG Bank immediately before the acquisition date was remeasured to the fair value of ¥271,830 million based on the quoted market price, resulting in recognition of profits of ¥41,218 million which is included in Gain on remeasurement of previously held equity method investment in the accompanying consolidated statements of operations for the fiscal year ended March 31, 2020. During the fiscal year ended March 31, 2020, the MUFG Group incurred ¥869 million of acquisition-related costs. These expenses are included in Other non-interest expenses in the accompanying consolidated statements of operations for the fiscal year ended March 31, 2020. The revenue and net loss of Danamon and its subsidiaries since the acquisition date were ¥119,331 million and ¥4,553 million for the fiscal year ended March 31, 2020. In addition, MUFG Bank acquired an additional 92.1% equity interest in PT Bank Nusantara Parahyangan, Tbk. (“BNP”) from ACOM CO., LTD., an equity method investee of MUFG, and other shareholders, based on a price of IDR 4,088 (approximately ¥33 (3) ) per share, for an investment amount of IDR 3 trillion (approximately ¥24.1 billion). As a result, equity interest in BNP increased to 99.9%, and BNP became a consolidated subsidiary of MUFG Bank. On May 1, 2019, MUFG Bank merged BNP into Danamon, acquiring an additional equity interest in Danamon in exchange for its equity interest in BNP, which resulted in MUFG Bank holding 94.1% equity interest in Danamon. Notes: (1) Calculated based on the exchange rate of IDR1 = ¥0.0084 (2) Calculated based on the exchange rate of IDR1 = ¥0.0077 (3) Calculated based on the exchange rate of IDR1 = ¥0.0080 The following table summarizes the estimated fair values of the assets acquired and liabilities assumed of Danamon and its subsidiaries as of the acquisition date: (in millions) Loans ¥ 1,086,638 Intangible assets (1) 146,899 Total assets 1,728,480 Deposits—Total deposits 915,075 Total liabilities 1,242,115 Note: (1) Intangible assets with a weighted average amortization period of 13.2 years primarily include ¥79,552 million of relationships with agents with a weighted average amortization period of 13.1 years and ¥44,140 million of core deposit intangibles with a weighted average amortization period of 10.1 years. Included in the table above are loans with fair values totaling ¥1,068,906 million, which were not subject to the guidance on loans and debt securities acquired with deteriorated credit quality. As of the acquisition date, the gross contractual amounts receivable for these loans totaled ¥1,082,422 million, of which ¥34,363 million is not expected to be collected. Acquisition of Colonial First State Global Asset Management On August 2, 2019, Mitsubishi UFJ Trust and Banking acquired 100.0% of the shares in each of the nine subsidiaries of Colonial First State Group Limited, for ¥312,225 million in cash, from Australian financial group Commonwealth Bank of Australia and its wholly-owned subsidiary, Colonial First State Group Limited, and thereby recorded goodwill of ¥177,065 million, none of which is deductible for income tax purposes and intangible assets of ¥105,973 million with a weighted average amortization period of 18.7 years primarily include ¥100,862 million of customer relationships with a weighted average amortization period of 18.0 years. These nine subsidiaries collectively, including their subsidiaries, had represented the global asset management business of Colonial First State Global Asset Management, and were renamed First Sentier Investors (“FSI”) on September 16, 2019. The MUFG Group is seeking the opportunities to enhance its competitive edge as well as expanding its client base globally in asset management business. The acquisition of FSI is a milestone to strengthen its capability and that is the reason such goodwill was paid which is allocated to the segment of Asset Management & Investor Services Business Group. The MUFG Group will continue to respond to customer expectations by leveraging the advantages and brands of FSI as well as the MUFG Group’s original asset management arms, aiming to become an asset management service provider with a global presence. The assets acquired and liabilities assumed were recorded at their estimated fair values on the acquisition date. During the fiscal year ended March 31, 2020, the MUFG Group incurred ¥3,775 million of acquisition-related costs. These expenses are included in Other non-interest expenses in the accompanying consolidated statements of operations for the fiscal year ended March 31, 2020. Total assets acquired amounted to ¥197,867 million, including cash and bank deposits of ¥42,019 million and intangible assets of ¥105,973 million, and total liabilities assumed amounted to ¥68,519 million, including accrued bonuses of ¥18,769 million. The revenue and net loss of FSI and its subsidiaries since the acquisition date were ¥38,508 million and ¥734 million for the fiscal year ended March 31, 2020. Acquisition of DVB Bank SE’s Aviation Finance Division On March 1, 2019, MUFG Bank and BOT Lease Co., Ltd. (“BOT Lease”), entered into an agreement with DVB Bank SE (“DVB”) to transfer DVB’s aviation finance division, including aviation finance-related business, to MUFG Bank and BOT Lease. The purpose of the transaction is to improve the MUFG Group’s ability to offer bespoke solutions to its clients by enhancing its global corporate investment banking business platform in terms of higher returns, diversifying its portfolio, broadening its customer base, and securing experienced professionals. On November 18, 2019, MUFG Bank acquired DVB’s most of aviation finance client lending portfolio, employees, and other part of the operation infrastructure for ¥555 billion in cash. MUFG Bank recorded goodwill of ¥32,591 million. During the fiscal year ended March 31, 2021, the purchase price adjustments were made, which increased goodwill by ¥1,105 million. In November 2020, MUFG Bank decided to discontinue the acquisition of DVB’s aviation investment management and asset management businesses, that was initially planned to be transferred to a newly established subsidiary of BOT Lease, since it was difficult to fully obtain the approval of the relevant national authorities. The following table summarizes the estimated fair values of the assets acquired and liabilities as of the acquisition date: (in millions) Loans ¥ 515,933 Total assets 522,797 Total liabilities 138 Agreement to Sell MUFG Union Bank and Invest 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., the wholly-owned primary operating subsidiary in the United States, to U.S. Bancorp. The businesses of MUFG Union Bank that the MUFG Group will transfer 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 that will be retained by MUFG Union Bank), the Global Markets business to the extent related to the GCIB business and certain assets and liabilities etc. that are part of shared middle and back office functions etc. Under a legal agreement, the assets and liabilities of these operations will be transferred to other entities within MUFG before it sells the shares of MUFG Union Bank. The transfer of the MUFG Union Bank shares to U.S. Bancorp was originally expected to become effective in the first half of calendar year 2022. However, required U.S. regulatory approval process remains ongoing. Therefore, the expected closing date has shifted to the second half of calendar year 2022, subject to the receipt of required regulatory approvals and the satisfaction of other closing conditions. Through this transaction, the MUFG Group aims to maximize shareholder value by improving our capital efficiency. The assets and liabilities of MUFG Union Bank, which will be transferred to U.S. Bancorp, were reclassified as held for sale, and included in Other assets and Other liabilities in the accompanying consolidated balance sheets at March 31, 2022. Assets and liabilities reclassified as held for sale at March 31, 2022 are shown below: At March 31, 2022 (in millions) Assets held for sale: Interest-earning deposits in other banks ¥ 1,110,633 Investment securities 3,188,257 Loans, net of allowance for credit losses 6,561,316 Other 761,361 Total ¥ 11,621,567 Liabilities held for sale: Deposits ¥ 10,448,481 Other 709,179 Total ¥ 11,157,660 The loss amount which was recognized through lower of cost or market method from the assets and liabilities held for sale was ¥134,141 million, which is included in Impairment of assets held for sale in the consolidated statements of operations through the fiscal year ended March 31 2022 and it includes the fluctuation of the fair value related to the transferred business from the date of contract to March 31, 2022.

Investment Securities

Investment Securities	12 Months Ended
	Mar. 31, 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, 2021 and 2022: At March 31, 2021: 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 ¥ 35,166,245 ¥ 147,844 ¥ 40,878 ¥ 35,273,211 Japanese prefectural and municipal bonds 3,719,205 15,123 2,815 3,731,513 Foreign government and official institution bonds 2,854,037 84,707 11,781 2,926,963 Corporate bonds 1,123,271 11,400 401 1,134,270 Residential mortgage-backed securities 1,459,062 9,119 1,051 1,467,130 Commercial mortgage-backed securities 435,975 29,502 912 464,565 Asset-backed securities 1,373,450 11,685 650 1,384,485 Other debt securities 168,528 3,780 730 171,578 Commercial paper 564,072 31 5 564,098 Total ¥ 46,863,845 ¥ 313,191 ¥ 59,223 ¥ 47,117,813 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 1,100,447 ¥ 23,033 ¥ — ¥ 1,123,480 Foreign government and official institution bonds 233,883 2,262 2,795 233,350 Residential mortgage-backed securities 411,024 18,590 — (1) 429,614 Commercial mortgage-backed securities 111,750 4,846 — (1) 116,596 Asset-backed securities 2,046,659 1,721 12,277 2,036,103 Total ¥ 3,903,763 ¥ 50,452 ¥ 15,072 ¥ 3,939,143 Note: (1) MUFG Americas Holdings reclassified residential mortgage-backed securities and commercial mortgage-backed securities from Available-for-sale debt securities to Held-to-maturity debt securities. As a result of the reclassification of residential mortgage-backed securities and commercial mortgage-backed securities, the unrealized losses before taxes at the date of reclassification remaining in Accumulated OCI in the accompanying consolidated balance sheets were ¥4,849 million and ¥1,920 million, respectively, at March 31, 2021 and are not included in the table above. 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 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 March 31, 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 cost Fair value Fair value (in millions) Due in one year or less ¥ 7,645 ¥ 7,647 ¥ 23,510,044 Due from one year to five years 1,243,939 1,257,188 11,252,103 Due from five years to ten years 2,251,995 2,250,937 6,191,452 Due after ten years 1,091,530 1,090,533 4,844,843 Total ¥ 4,595,109 ¥ 4,606,305 ¥ 45,798,442 Realized Gains and Losses For the fiscal years ended March 31, 2020, 2021 and 2022, gross realized gains on sales of Available-for-sale debt securities were ¥151,015 million, ¥42,123 million and ¥85,525 million, respectively, and gross realized losses on sales of Available-for-sale debt securities were ¥44,662 million, ¥48,606 million and ¥36,698 million, respectively. Impairment Losses on Investment Securities For the fiscal year ended March 31, 2020, losses resulting from the impairment of investment securities to reflect the decline in value considered to be other-than-temporary were ¥1,590 million, which were included in Investment securities gains (losses)—net in the accompanying consolidated statements of operations. These losses were recorded from Available-for-sale debt securities which mainly comprised of corporate bonds for the fiscal year ended March 31, 2020. From the fiscal year ended March 31, 2021, as a result of the adoption of new guidance on a measurement of credit losses on financial instruments, an allowance for credit losses on Available-for-sale debt securities is required for impaired securities if a credit loss exists, and an allowance for credit losses on Held-to-maturity debt securities is required for expected credit losses over the remaining expected life. For the fiscal year ended March 31, 2021, impairment losses on Available-for-sale debt securities, which mainly comprised of corporate bonds, were included in Investment securities gains (losses)—net in the accompanying consolidated statements of operations and were not material. For the fiscal year ended March 31, 2022, impairment losses on Available-for-sale debt securities were included in Investment securities gains (losses)—net in the accompanying consolidated statements of operations and were ¥47,281 million. 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 consolidated balance sheets at March 31, 2022. For the fiscal years ended March 31, 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, 2021 and 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, 2021: Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Number of securities (in millions, except number of securities) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 12,098,437 ¥ 31,055 ¥ 429,235 ¥ 9,823 ¥ 12,527,672 ¥ 40,878 286 Japanese prefectural and municipal bonds 870,007 1,584 276,172 1,231 1,146,179 2,815 405 Foreign government and official institution bonds 429,204 11,768 50,478 13 479,682 11,781 71 Corporate bonds 96,582 166 229,518 235 326,100 401 120 Residential mortgage-backed securities 378,351 577 139,214 474 517,565 1,051 218 Commercial mortgage-backed securities 36,633 905 2,616 7 39,249 912 21 Asset-backed securities 190,795 394 49,428 256 240,223 650 89 Other debt securities 22,812 91 22,388 639 45,200 730 17 Commercial paper 116,016 5 — — 116,016 5 8 Total ¥ 14,238,837 ¥ 46,545 ¥ 1,199,049 ¥ 12,678 ¥ 15,437,886 ¥ 59,223 1,235 Less than 12 months 12 months or more Total At March 31, 2022: Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses 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 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 March 31, 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 March 31, 2022 and no impairment loss has been recorded. Corporate bonds As of March 31, 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 March 31, 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 March 31, 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 March 31, 2022, unrealized losses on these securities were primarily driven by certain 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 March 31, 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 March 31, 2020, 2021 and 2022: Fiscal years ended March 31, 2020 2021 2022 (in millions) Net gains (losses) recognized during the period (1) ¥ (639,813) ¥ 1,467,763 ¥ (125,271) Less: Net gains (losses) recognized during the period on equity securities sold during the period (37,541) 47,775 (38,042) Net unrealized gains (losses) recognized during the reporting period still held at the reporting date ¥ (602,272) ¥ 1,419,988 ¥ (87,229) 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, 2021 and 2022: 2021 2022 (in millions) Measurement alternative balance ¥ 356,074 ¥ 310,570 The related adjustments for these securities for the fiscal years ended March 31, 2020, 2021 and 2022 were as follows: Fiscal years ended March 31, 2020 2021 2022 (in millions) Measurement alternative impairment losses (1)(4) ¥ (3,099) ¥ (5,188) ¥ (4,299) Measurement alternative downward changes for observable prices (1)(2)(3)(5) ¥ (953) ¥ — ¥ — Measurement alternative upward changes for observable prices (1)(2)(3)(6) ¥ 6,223 ¥ 21,710 ¥ 3,067 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, 2021 and 2022 were ¥10,102 million and ¥12,354 million respectively. (5) The cumulative downward changes for observable prices at March 31, 2021 and 2022 were ¥953 million and ¥954 million, respectively.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	12 Months Ended
	Mar. 31, 2022
Receivables [Abstract]
Loans and Allowance for Credit Losses	LOANS AND ALLOWANCE FOR CREDIT LOSSESThe MUFG Group classifies its loan portfolio into the following portfolio segments—Commercial, Residential, Card, MUFG Americas Holdings, 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 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, 2021 and 2022. Past Due At March 31, 2021: 1-3 months Greater Total Current Loans Total Past Due 90 Days and (in millions) Commercial Domestic ¥ 4,763 ¥ 22,996 ¥ 27,759 ¥ 54,605,452 ¥ 47,632 ¥ 54,680,843 ¥ 4,673 Foreign 7,302 22,473 29,775 31,262,476 194,696 31,486,947 91 Residential 39,577 28,375 67,952 13,114,863 — 13,182,815 11,150 Card 2,127 26,786 28,913 450,383 22,945 502,241 — MUAH 42,082 29,337 71,419 8,424,325 87,822 8,583,566 4,626 Krungsri 131,573 127,533 259,106 6,345,539 — 6,604,645 — Other 21,776 24,201 45,977 940,711 — 986,688 — Total ¥ 249,200 ¥ 281,701 ¥ 530,901 ¥ 115,143,749 ¥ 353,095 ¥ 116,027,745 ¥ 20,540 Unearned income, unamortized premiums—net and deferred loan fees—net (308,882) Total ¥ 115,718,863 Past Due At March 31, 2022: 1-3 months Greater Total Current Loans Total Past Due 90 Days and Accruing (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 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, MUFG Americas Holdings, and Krungsri segments, and six months or more with respect to loans within the Residential segment. See Note 1 for further information. The information on nonaccrual loans by class at March 31, 2021 and 2022, and recognized interest income on nonaccrual loans by class for the fiscal years ended March 31, 2021 and 2022 are shown below: Recorded Loan Balance March 31, 2021: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) Recognized (in millions) Commercial Domestic ¥ 565,671 ¥ 111,141 ¥ 4,355 Foreign 258,391 96,833 5,110 Residential 67,968 4,720 923 Card 60,200 — 37 MUAH 73,706 30,242 1,057 Krungsri 161,338 3,042 5,562 Other 26,567 29 4,203 Total ¥ 1,213,841 ¥ 246,007 ¥ 21,247 Recorded Loan Balance March 31, 2022: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) Recognized Interest Income (in millions) Commercial Domestic ¥ 633,768 ¥ 109,919 ¥ 6,532 Foreign 224,566 84,837 4,734 Residential 56,175 3,579 811 Card 62,578 — 25 MUAH 15,349 — 77 Krungsri 165,775 2,824 4,076 Other 26,618 7 3,688 Total ¥ 1,184,829 ¥ 201,166 ¥ 19,943 Notes: (1) Nonaccrual loans in the above table do not include loans held for sale of ¥8,562 million and ¥7,946 million at March 31, 2021 and 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. Troubled Debt Restructurings The following table summarizes the MUFG Group’s TDRs by class for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 Troubled Debt Restructurings Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment (in millions) Commercial (1)(3) Domestic ¥ 61,735 ¥ 61,735 ¥ 39,282 ¥ 39,282 ¥ 168,348 ¥ 167,342 Foreign 39,827 39,827 33,839 33,839 16,144 16,144 Loans acquired with deteriorated credit quality 10,786 10,786 — — — — Residential (1)(3) 5,137 5,137 18,121 18,121 22,484 22,484 Card (2)(3) 22,625 21,561 20,857 19,737 20,937 19,824 MUAH (2)(3) 33,782 33,564 22,801 22,763 11,384 11,384 Krungsri (2)(3) 31,238 31,209 18,548 18,548 14,869 14,869 Other (2)(3) 12,781 12,780 24,968 24,956 11,403 11,403 Total ¥ 217,911 ¥ 216,599 ¥ 178,416 ¥ 177,246 ¥ 265,569 ¥ 263,450 2020 2021 2022 Troubled Debt Restructurings That Subsequently defaulted Recorded Investment (in millions) Commercial (1)(3) Domestic ¥ 8,857 ¥ 16,179 ¥ 12,020 Foreign 2,337 9,861 13,180 Residential (1)(3) 31 157 203 Card (2)(3) 3,320 2,733 2,746 MUAH (2)(3) 4,656 3,437 — Krungsri (2)(3) 7,305 6,226 5,657 Other (2)(3) 15 857 4,715 Total ¥ 26,521 ¥ 39,450 ¥ 38,521 Notes: (1) TDRs for the Commercial and Residential segments include accruing loans, and do not include nonaccrual loans. (2) TDRs for the Card, MUFG Americas Holdings, Krungsri and Other segments include accrual and nonaccrual loans. (3) For the fiscal year ended March 31, 2020, extension of the stated maturity date of loans was the primary concession type in the Commercial, Residential, MUFG Americas Holdings and Krungsri segments and reduction in the stated rate was the primary concession type in the Card and Other segments. For the fiscal year ended March 31, 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 MUFG Americas Holdings segment. For the fiscal year ended March 31, 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 MUFG Americas Holdings segment. 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 fiscal years ended March 31, 2020, 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, MUFG Americas Holdings, 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 MUFG Americas Holdings 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. The MUFG Group provided commitments to extend credit to customers with TDRs. The amounts of such commitments were ¥130,788 million and ¥132,456 million at March 31, 2021 and 2022, respectively. See Note 24 for further discussion of commitments to extend credit. In the MUFG Americas Holdings segment, TDR accounting was suspended for loan modifications , where COVID-19 related modifications were granted to loans that were current as of December 31, 2019, based on the Coronavirus Aid, Relief, and Economic Security Act, or 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 were primarily payment deferrals, 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. 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, 2021 and 2022 are shown below: Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Total (1) At March 31, 2021 2020 2019 2018 2017 2016 Prior (in millions) Commercial: ¥ 29,805,641 ¥ 10,256,709 ¥ 9,410,172 ¥ 5,360,221 ¥ 4,736,515 ¥ 6,945,092 ¥ 19,401,336 ¥ 9,776 ¥ 85,925,462 Domestic 22,402,694 6,392,946 6,126,746 3,840,964 3,649,145 5,286,408 6,934,308 — 54,633,211 Normal 21,936,776 6,058,126 5,915,318 3,666,734 3,551,332 4,847,597 6,604,586 — 52,580,469 Close Watch 431,223 319,073 195,630 162,176 74,698 317,622 306,236 — 1,806,658 Likely to become Bankrupt or Legally/Virtually Bankrupt 34,695 15,747 15,798 12,054 23,115 121,189 23,486 — 246,084 Foreign 7,402,947 3,863,763 3,283,426 1,519,257 1,087,370 1,658,684 12,467,028 9,776 31,292,251 Normal 7,158,793 3,704,240 3,155,261 1,423,064 1,032,052 1,534,943 12,231,018 9,776 30,249,147 Close Watch 200,305 118,027 91,867 60,422 51,433 69,436 197,405 — 788,895 Likely to become Bankrupt or Legally/Virtually Bankrupt 43,849 41,496 36,298 35,771 3,885 54,305 38,605 — 254,209 Residential ¥ 623,328 ¥ 847,314 ¥ 822,883 ¥ 892,166 ¥ 1,304,110 ¥ 8,660,022 ¥ 32,984 ¥ 8 ¥ 13,182,815 Accrual 623,035 846,787 822,411 891,407 1,302,427 8,599,621 30,897 — 13,116,585 Nonaccrual 293 527 472 759 1,683 60,401 2,087 8 66,230 Card ¥ 14 ¥ 96 ¥ 171 ¥ 304 ¥ 110 ¥ 513 ¥ 417,804 ¥ 60,284 ¥ 479,296 Accrual 1 10 13 19 7 79 404,301 14,666 419,096 Nonaccrual 13 86 158 285 103 434 13,503 45,618 60,200 MUAH ¥ 1,406,996 ¥ 1,366,930 ¥ 915,570 ¥ 861,742 ¥ 770,568 ¥ 1,291,561 ¥ 1,882,377 ¥ — ¥ 8,495,744 Credit Quality Based on the Number of Delinquencies Accrual 472,892 608,580 324,369 552,380 516,051 656,087 130,514 — 3,260,873 Nonaccrual — 725 518 1,139 1,035 14,801 828 — 19,046 Credit Quality Based on Internal Credit Ratings Pass 920,959 707,841 486,354 287,316 236,715 542,634 1,625,799 — 4,807,618 Special Mention 4,865 31,361 49,784 14,904 9,522 30,015 76,487 — 216,938 Classified 8,280 18,423 54,545 6,003 7,245 48,024 48,749 — 191,269 Krungsri ¥ 1,316,031 ¥ 1,197,815 ¥ 958,241 ¥ 506,919 ¥ 285,427 ¥ 402,752 ¥ 1,922,946 ¥ 14,514 ¥ 6,604,645 Performing 1,251,246 1,086,710 855,915 434,818 241,811 314,114 1,754,840 — 5,939,454 Under-Performing 52,821 85,408 74,848 57,314 31,886 57,129 144,447 — 503,853 Non-Performing 11,964 25,697 27,478 14,787 11,730 31,509 23,659 14,514 161,338 Other ¥ 338,342 ¥ 164,650 ¥ 84,115 ¥ 37,394 ¥ 11,030 ¥ 8,538 ¥ 342,619 ¥ — ¥ 986,688 Accrual 335,830 159,363 79,608 35,366 10,556 8,201 331,197 — 960,121 Nonaccrual 2,512 5,287 4,507 2,028 474 337 11,422 — 26,567 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis 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 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. The MUFG Group classifies loans into risk categories based on relevant information about the ability of borrowers to service their debt, including, but not limited to, historical and current financial information, historical and current payment experience, credit documentation, public and non-public information about borrowers and current economic trends as deemed appropriate to each segment. The primary credit quality indicator for loans within all classes of the Commercial segment is the internal credit rating assigned to each borrower based on the MUFG Group’s internal borrower ratings of 1 through 15, with the rating of 1 assigned to a borrower with the highest quality of credit. When assigning a credit rating to a borrower, the MUFG Group evaluates the borrower’s expected debt-service capability based on various information, including financial and operating information of the borrower as well as information on the industry in which the borrower operates, and the borrower’s business profile, management and compliance system. In evaluating a borrower’s debt-service capability, the MUFG Group also conducts an assessment of the level of earnings and an analysis of the borrower’s net worth. Based on the internal borrower rating, loans within the Commercial segment are categorized as Normal (internal borrower ratings of 1 through 9), Close Watch (internal borrower ratings of 10 through 12), and Likely to become Bankrupt or Legally/Virtually Bankrupt (internal borrower ratings of 13 through 15). Loans to borrowers categorized as Normal represent those that are not deemed to have collectibility issues. Loans to borrowers categorized as Close Watch represent those that require close monitoring as the borrower has begun to exhibit elements of potential concern with respect to its business performance and financial condition, the borrower has begun to exhibit elements of serious concern with respect to its business performance and financial condition, including business problems requiring long-term solutions, or the borrower’s loans are TDRs or loans contractually past due 90 days or more for special reasons. Loans to borrowers categorized as Likely to become Bankrupt or Legally/Virtually Bankrupt represent those that have a higher probability of default than those categorized as Close Watch due to serious debt repayment problems with poor progress in achieving restructuring plans, the borrower being considered virtually bankrupt with no prospects for an improvement in business operations, or the borrower being legally bankrupt with no prospects for continued business operations because of non-payment, suspension of business, voluntary liquidation or filing for legal liquidation. The accrual status is a primary credit quality indicator for loans within the Residential segment, the Card segment, the Other segment and consumer loans within the MUFG Americas Holdings segment. The accrual status of these loans is determined based on the number of delinquent payments. See Note 1 for further details of categorization of Accrual and Nonaccrual. Commercial loans within the MUFG Americas Holdings segment are categorized as either pass or criticized based on the internal credit rating assigned to each borrower. Criticized credits are those that are internally risk graded as Special Mention, Substandard or Doubtful. Special Mention credits are potentially weak, as the borrower has begun to exhibit deteriorating trends, which, if not corrected, may jeopardize repayment of the loan and result in further downgrade. Classified credits are those that are internally risk graded as Substandard or Doubtful. Substandard credits have well-defined weaknesses, which, if not corrected, could jeopardize the full satisfaction of the debt. A credit classified as Doubtful has critical weaknesses that make full collection improbable on the basis of currently existing facts and conditions. Loans within the Krungsri segment are categorized as Performing, Under-Performing or Non-Performing based on their delinquency status. Loans categorized as Under-Performing generally represent those that have significant increases in credit risk since origination, including, among other things, loans that are 30 days or more past due, and loans categorized as Non-Performing generally represent those that are 90 days or more past due. For the Commercial, Residential and Card segments, credit quality indicators are based on information as of March 31. For the MUFG Americas Holdings, Krungsri and Other segments, credit quality indicators are generally based on information as of December 31. Allowance for Credit Losses Effective as of April 1, 2020, the MUFG Group adopted new guidance on measurement of credit losses on financial instruments. See Note 1 for more information. Changes in the allowance for credit losses by portfolio segment for the fiscal years ended March 31, 2020, 2021 and 2022 are shown below: Fiscal year ended March 31, 2020: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of fiscal year ¥ 389,615 ¥ 38,626 ¥ 32,550 ¥ 52,581 ¥ 144,812 ¥ — ¥ 658,184 Provision for (reversal of) credit losses 153,782 (1,028) 26,542 30,825 70,023 41,569 321,713 Charge-offs 85,326 3,227 25,149 27,934 77,907 23,592 243,135 Recoveries collected 26,427 375 1,237 4,173 23,170 8,476 63,858 Net charge-offs 58,899 2,852 23,912 23,761 54,737 15,116 179,277 Other (1) (2,223) — — (650) 9,528 2,265 8,920 Balance at end of fiscal year ¥ 482,275 ¥ 34,746 ¥ 35,180 ¥ 58,995 ¥ 169,626 ¥ 28,718 ¥ 809,540 Fiscal year ended March 31, 2021: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of fiscal year ¥ 482,275 ¥ 34,746 ¥ 35,180 ¥ 58,995 ¥ 169,626 ¥ 28,718 ¥ 809,540 Effect of adopting new guidance on measurement of credit losses on financial instruments (2) 83,828 49,494 14,262 25,037 118,333 32,750 323,704 Provision for credit losses 235,584 1,385 17,876 90,064 90,167 49,134 484,210 Charge-offs 77,904 2,745 24,564 40,376 93,192 51,725 290,506 Recoveries collected 9,262 13 1,463 4,362 23,415 6,567 45,082 Net charge-offs 68,642 2,732 23,101 36,014 69,777 45,158 245,424 Other (1) 1,532 — — (6,327) (14,953) (3,891) (23,639) Balance at end of fiscal year ¥ 734,577 ¥ 82,893 ¥ 44,217 ¥ 131,755 ¥ 293,396 ¥ 61,553 ¥ 1,348,391 Fiscal year ended March 31, 2022: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of fiscal year ¥ 734,577 ¥ 82,893 ¥ 44,217 ¥ 131,755 ¥ 293,396 ¥ 61,553 ¥ 1,348,391 Provision for (reversal of) credit losses 236,659 (10,899) 15,473 (101,112) 90,514 47,360 277,995 Charge-offs 57,848 2,121 20,153 19,208 83,474 55,208 238,012 Recoveries collected 11,898 14 1,231 9,532 22,890 13,150 58,715 Net charge-offs 45,950 2,107 18,922 9,676 60,584 42,058 179,297 Other (1) 8,800 — — 9,398 (940) 6,354 23,612 Balance at end of fiscal year ¥ 934,086 ¥ 69,887 ¥ 40,768 ¥ 30,365 ¥ 322,386 ¥ 73,209 ¥ 1,470,701 Notes: (1) Other is principally comprised of gains or losses from foreign exchange translation. (2) See Note 1 for more information. Nonperforming loans were actively disposed of by sales during recent years. The allocated allowance for credit losses for such loans was removed from the allowance for credit losses and transferred to the valuation allowance for loans held for sale upon a decision to sell. Net charge-offs in the above table include a decrease from charge-offs in the allowance for credit losses amounting to ¥19.4 billion, ¥16.8 billion and ¥0.4 billion for the fiscal years ended March 31, 2020 , 2021 and 2022, respectively, due to loan disposal activity. The MUFG Group sold ¥2,136 billion, ¥1,684 billion and ¥2,011 billion of loans within the Commercial segment during the fiscal years ended March 31, 2020, 2021 and 2022, respectively. The MUFG Group sold ¥586 billion and ¥518 billion of loans within the MUFG Americas Holdings segment during the fiscal years ended March 31, 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.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Mar. 31, 2022
Property, Plant and Equipment [Abstract]
Premises and Equipment	PREMISES AND EQUIPMENT Premises and equipment at March 31, 2021 and 2022 consisted of the following: 2021 2022 (in millions) Land ¥ 379,560 ¥ 372,710 Buildings 765,341 766,945 Equipment and furniture 564,273 497,478 Leasehold improvements 303,164 255,679 Construction in progress 46,513 30,894 Total 2,058,851 1,923,706 Less accumulated depreciation 1,183,859 1,107,877 Premises and equipment-net ¥ 874,992 ¥ 815,829

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Mar. 31, 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 by business segment during the fiscal years ended March 31, 2021 and 2022: Global Corporate & Investment Banking Business Group Global Commercial Banking Business Group Asset Management & Investor Services Business Group Global Markets Business Group Total (in millions) Balance at March 31, 2020: Goodwill ¥ 138,538 ¥ 738,645 ¥ 214,071 ¥ 2,300 ¥ 1,093,554 Accumulated impairment losses (2) (32,868) (528,692) (14,368) — (575,928) 105,670 209,953 199,703 2,300 517,626 Goodwill acquired during the fiscal year (1) 1,105 — 4,164 — 5,269 Impairment loss (30,525) (117,039) — — (147,564) Foreign currency translation adjustments and other 456 (10,001) 5,066 — (4,479) Balance at March 31, 2021: Goodwill 140,099 728,644 223,301 2,300 1,094,344 Accumulated impairment losses (63,393) (645,731) (14,368) — (723,492) ¥ 76,706 ¥ 82,913 ¥ 208,933 ¥ 2,300 ¥ 370,852 Foreign currency translation adjustments and other 4,694 7,358 12,493 — 24,545 Balance at March 31, 2022: Goodwill 144,793 736,002 235,794 2,300 1,118,889 Accumulated impairment losses (63,393) (645,731) (14,368) — (723,492) Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank (3) (2,415) (89,371) — — (91,786) ¥ 78,985 ¥ 900 ¥ 221,426 ¥ 2,300 ¥ 303,611 Notes: (1) See Note 2 for the goodwill acquired in connection with acquisitions. (2) Effective April 1, 2018, the MUFG Group reorganized its business groups. Goodwill originally recognized for Retail Banking Business Group, Corporate Banking Business Group, Trust Assets Business Group and Global Business Group other than MUAH and Krungsri was ¥1,900,019 million, which has been fully impaired before April 1, 2017. As these impairment losses recorded in past before the reorganization of the segment and are irrelevant to the annual impairment test under the new segment, the accumulated impaired loss is not allocated to new business segments after the reorganization of business group. (3) Represents goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank, which is included in Other assets in the accompanying consolidated balance sheet at March 31, 2022. See Notes 2 for more information. U.S. GAAP requires to test goodwill for impairment at least annually, or more frequently if events or changes in circumstances indicate that goodwill may be impaired, using a process that compares the carrying amount of a reporting unit with its fair value. An impairment loss is recognized to the extent that the carrying amount of a reporting unit exceeds its fair value, but not exceeding the total amount of goodwill allocated to that reporting unit. For the fiscal year ended March 31, 2020, the MUFG Group recognized ¥241,356 million of an impairment of goodwill relating to Danamon reporting unit within the Global Commercial Banking Business Group Segment, which is included in impairment of goodwill in the accompanying consolidated statements of operations. In determining the acquisition price of Bank Danamon, the results of multiple valuation techniques were considered with an expectation to benefit from Danamon’s foothold in the developing local retail and SME segments to deepen its banking franchise in Indonesia. After the acquisition of Danamon by MUFG Bank, Danamon’s market capitalization decreased. As a result, the fair value of the reporting unit as an exit price was measured on June 30, 2019 for the quantitative goodwill impairment test, and led to impairment of goodwill as the fair value had fallen below the carrying amount of the reporting unit, including goodwill, reflecting a reduction in stock price as well as changes in the inputs to the valuation techniques in comparison to those considered in determining the acquisition price such as discount rate. The measurement of the fair value of the reporting unit was primarily based on a market approach, and was also corroborated by multiple valuation techniques. For the fiscal year ended March 31, 2020, the MUFG Group recognized ¥62,157 million of impairment of goodwill relating to Krungsri reporting unit within the Global Commercial Banking Business Group segment. The global economic slowdown led to slowing economic growth in Thailand and the decline of Krungsri’s stock price. As a result, the fair value of the reporting unit was measured on December 31, 2019 for the quantitative goodwill impairment test, and led to impairment of goodwill as the fair value had fallen below the carrying amount of the reporting unit. The measurement of the fair value of the reporting unit was primarily based on a market approach, and was also corroborated by multiple valuation techniques. For the fiscal year ended March 31, 2020, the MUFG Group recognized ¥80,297 million in impairment of goodwill relating to MUAH reporting unit within the Global Commercial Banking Business Group segment and Global Corporate & Investment Banking Business Group segment. Due to the decline in interest rates and slower growth than previously forecasted, cash flow projections for reporting units were lowered. The combination of these events led management to believe that the fair values of certain reporting units were below carrying value. As a result, the fair value of the reporting unit was measured on December 31, 2019 for the quantitative goodwill impairment test, and led to impairment of goodwill with the fair value fallen below the carrying amount of the reporting unit. The MUFG Group estimated the fair value of its reporting units using a combination of the income and the market approaches. The income approach estimates the fair value of the reporting units by discounting management’s projections of each reporting unit’s cash flows, including a terminal value to estimate the fair value of cash flows beyond the final year of projected results, using a discount rate derived from the Capital Asset Pricing Model. The market approach incorporates comparable public company price to tangible book value and price to earnings multiples. For the fiscal year ended March 31, 2021, the MUFG Group recognized ¥147,564 million in impairment of goodwill relating to MUAH reporting unit within the Global Commercial Banking Business Group segment and Global Corporate & Investment Banking Business Group segment. Due largely to increases in observed market discount rates, the fair values of the reporting units were lowered. This led management to believe that the fair values of certain reporting unit was below carrying value. As a result, the fair value of the reporting unit was measured for the quantitative goodwill impairment test, and led to impairment of goodwill with the fair value fallen below the carrying amount of the reporting unit. The MUFG Group estimated the fair value of its reporting units using a combination of the income and the market approaches. This goodwill impairment includes the impact of an intervening event due to the economic environment triggered by COVID-19 for the three-month period ended March 31, 2020. The MUFG Group consolidates certain subsidiaries, including MUAH, based on financial information for the year ended December 31 as this date and MUFG’s fiscal year which ends on March 31 have been treated as coterminous. Other Intangible Assets The table below presents the gross carrying amount, accumulated amortization and net carrying amount, in total and by major class of other intangible assets at March 31, 2021 and 2022: 2021 2022 Gross carrying amount Accumulated amortization Net carrying amount Gross carrying amount Accumulated amortization Net carrying amount (in millions) Intangible assets subject to amortization: Software ¥ 3,025,769 ¥ 2,249,340 ¥ 776,429 ¥ 3,169,332 ¥ 2,380,861 ¥ 788,471 Customer relationships 555,796 290,641 265,155 528,969 282,324 246,645 Core deposit intangibles 164,979 102,958 62,021 114,059 58,972 55,087 Trade names 92,422 41,629 50,793 76,858 36,846 40,012 Other 16,136 5,640 10,496 15,194 4,859 10,335 Total ¥ 3,855,102 ¥ 2,690,208 1,164,894 ¥ 3,904,412 ¥ 2,763,862 1,140,550 Intangible assets not subject to amortization: Other (1) 20,100 8,051 Total ¥ 1,184,994 ¥ 1,148,601 Note: (1) Intangible assets not subject to amortization includes ¥11,355 million and nil of mortgage servicing rights accounted for at fair value at March 31, 2021 and 2022, respectively. Intangible assets subject to amortization acquired during the fiscal year ended March 31, 2021 amounted to ¥255,336 million, which primarily consisted of ¥251,452 million of software and ¥3,765 million of customer relationships. The weighted average amortization periods for these assets are 5 years and 21 years, respectively. There is no significant residual value estimated for these assets. Intangible assets not subject to amortization acquired during the fiscal year ended March 31, 2021 amounted to ¥1,960 million. Intangible assets subject to amortization acquired during the fiscal year ended March 31, 2022 amounted to ¥262,826 million, which primarily consisted of ¥262,645 million of software. The weighted average amortization periods for these assets are 6 years. There is no significant residual value estimated for these assets. Intangible assets not subject to amortization acquired during the fiscal year ended March 31, 2022 amounted to ¥3,498 million. For the fiscal years ended March 31, 2020, 2021 and 2022, the MUFG Group recognized ¥3,732 million, ¥21,680 million and ¥33,301 million, respectively, of impairment losses for intangible assets whose carrying amounts exceeded their fair value. In computing the amount of impairment losses, fair value was determined primarily based on the present value of expected future cash flows, the estimated value based on appraisals, or market prices. The estimated aggregate amortization expense for intangible assets for the next five fiscal years is as follows: (in millions) Fiscal year ending March 31: 2023 ¥ 270,745 2024 232,942 2025 190,321 2026 142,645 2027 99,395

Lease Transactions

Lease Transactions	12 Months Ended
	Mar. 31, 2022
Leases [Abstract]
Lease Transactions	LEASE TRANSACTIONS Lease transactions as a lessee Right-of-use assets of finance leases, which are principally related to data processing equipment and included in Premises and equipment in the accompanying consolidated balance sheets, amounted to ¥15,218 million and ¥12,980 million at March 31, 2021 and 2022, respectively. Lease liabilities of these finance leases, which are included in Long-term debt in the accompanying consolidated balance sheets, amounted to ¥20,137 million and ¥16,104 million at March 31, 2021 and 2022, respectively. Right-of-use assets of operating leases, which are principally related to office space and equipment are included in Other assets in the accompanying consolidated balance sheets, amounted to ¥338,547 million and ¥261,803 million at March 31, 2021 and 2022, respectively. Lease liabilities of these operating leases, which are included in Other liabilities in the accompanying consolidated balance sheets, amounted to ¥476,104 million and ¥384,183 million at March 31, 2021 and 2022, respectively. For the fiscal years ended March 31, 2021 and 2022, the MUFG Group recognized ¥56,424 and ¥20,830, respectively, of impairment losses for Right-of-use assets of operating leases, where recovery of the carrying amount is doubtful. The losses are included in Other non-interest expenses. The discount rates used in determining the present value of leases are the MUFG Group’s incremental borrowing rate, developed based upon each lease’s term and currency of payment. The lease term includes options to extend or terminate the lease when it is reasonably certain that the MUFG Group will exercise that option. The MUFG Group has elected to exclude leases with original terms of less than one year from the operating lease right-of-use assets and lease liabilities. The MUFG Group’s lease arrangements that have not yet commenced as of March 31, 2022 are not material. Variable lease costs did not have a material impact on the MUFG Group’s results of operations. The following table presents profit or loss of lease transactions as a lessee for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Finance lease cost: Amortization of right-of-use assets ¥ 5,455 ¥ 4,971 ¥ 4,816 Interest on lease liabilities 460 240 198 Operating lease cost 99,939 91,276 81,206 The following table presents information of lease transactions as a lessee for the fiscal years ended March 31, 2021 and 2022: 2021 2022 (in millions, except years and percentages) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases ¥ 331 ¥ 262 Operating cash flows from operating leases 102,982 107,047 Financing cash flows from finance leases 7,709 7,426 Right-of-use assets obtained in exchange for new finance lease liabilities 3,487 4,055 Right-of-use assets obtained in exchange for new operating lease liabilities 50,564 48,095 Weighted-average remaining lease term: Finance leases 4.1 years 3.6 years Operating leases 8.3 years 8.0 years Weighted-average discount rate: Finance leases 0.87 % 0.77 % Operating leases 0.97 % 0.76 % Maturities of lease liabilities as of March 31, 2022 are as follows: Finance leases Operating leases (in millions) 2023 ¥ 6,250 ¥ 89,016 2024 4,583 70,274 2025 2,395 51,582 2026 1,532 40,012 2027 839 28,138 2028 and thereafter 916 124,388 Total undiscounted cash flows 16,515 403,410 Difference between undiscounted and discounted cash flows (411) (19,227) Amount on balance sheet ¥ 16,104 ¥ 384,183 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 lease are presented in loans. In certain case, the MUFG Group requests lessees to deposit in advance an amount nearly equal or equal to the residual value of leased assets. The following table presents profit or loss of lease transactions as a lessor for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Sales type and direct financing leases: Finance income on net investment ¥ 119,010 ¥ 122,810 ¥ 116,430 Operating leases: Lease income 7,856 3,663 4,202 Total ¥ 126,866 ¥ 126,473 ¥ 120,632 Finance income on net investment is included in Interest income—Loans, including fees in the consolidated statements of operations. Lease income from operating lease transactions is included in Other non-interest income in the consolidated statements of operations. The following table presents the components of sales type and direct financing leases transactions as of March 31, 2021 and 2022. 2021 2022 (in millions) Lease receivables (undiscounted) ¥ 1,913,852 ¥ 1,855,125 Adjustments: Discounted unguaranteed residual value 15,435 12,439 Initial direct cost on sales type and direct financing leases 27,869 27,695 Deferred selling profit (313,784) (306,316) Net investment in sales type and direct financing leases ¥ 1,643,372 ¥ 1,588,943 The following table presents maturity of the lease payment receivables of sales type and direct financing lease transactions as of March 31, 2022: Lease receivables (in millions) 2023 ¥ 452,739 2024 428,280 2025 348,436 2026 264,847 2027 170,471 2028 and thereafter 190,352 Total undiscounted cash flows 1,855,125 Difference between undiscounted cash flows and the lease receivables recognized on balance sheet (266,182) Amount on balance sheet ¥ 1,588,943

Income Taxes

Income Taxes	12 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Income (Loss) before Income Tax Expense (Benefit) Income (loss) before income tax expense (benefit) by jurisdiction for the fiscal years ended March 31, 2020, 2021 and 2022 was as follows: 2020 2021 2022 (in millions) Domestic income (loss) ¥ 89,440 ¥ 575,101 ¥ (886,921) Foreign income 343,780 1,033,241 828,194 Total ¥ 433,220 ¥ 1,608,342 ¥ (58,727) Income Tax Expense (Benefit) The detail of current and deferred income tax expense (benefit) for the fiscal years ended March 31, 2020, 2021 and 2022 was as follows: 2020 2021 2022 (in millions) Current: Domestic ¥ 28,128 ¥ 95,183 ¥ 243,993 Foreign 147,344 83,492 112,164 Total 175,472 178,675 356,157 Deferred: Domestic (18,949) 310,490 (308,214) Foreign (42,018) (44,217) (62,454) Total (60,967) 266,273 (370,668) Income tax expense (benefit) 114,505 444,948 (14,511) Income tax expense (benefit) reported in Accumulated OCI relating to: Investment securities (29,747) 1,146 (87,628) Debt valuation adjustments 23,908 (36,792) 10,296 Derivatives qualifying for cash flow hedges 4,012 12,244 (4,968) Defined benefit plans (57,685) 139,883 19,039 Foreign currency translation adjustments (20,693) (3,368) 96,742 Total (80,205) 113,113 33,481 Total ¥ 34,300 ¥ 558,061 ¥ 18,970 The MUFG Group files tax returns on a consolidated basis for corporate income taxes within Japan. A consolidated basis for corporate income taxes results in the reporting of taxable income or loss based upon the combined profits or losses of the parent company and its wholly-owned domestic subsidiaries. Reconciliation of Effective Income Tax Rate Income taxes in Japan applicable to the MUFG Group are imposed by the national, prefectural and municipal governments, and in the aggregate resulted in a normal effective statutory rate of approximately 30.6%, 30.6%, and 30.6% for the fiscal years ended March 31, 2020, 2021 and 2022, respectively. Foreign subsidiaries are subject to income taxes of the countries in which they operate. A reconciliation of the effective income tax rates reflected in the accompanying consolidated statements of operations to the combined normal effective statutory tax rates for the fiscal years ended March 31, 2020, 2021 and 2022 is as follows: 2020 2021 2022 Combined normal effective statutory tax rate 30.6 % 30.6 % 30.6 % Nondeductible expenses 1.2 0.3 (12.0) Impairment of goodwill 26.1 2.4 — Foreign tax credit and payments (9.2) (0.9) 28.7 Lower tax rates applicable to income of subsidiaries (3.2) (1.0) 30.8 Change in valuation allowance 7.9 (0.9) (90.1) Realization of previously unrecognized tax effects of subsidiaries (19.8) (1) — — Nontaxable dividends received (15.6) (1.9) 85.1 Undistributed earnings of subsidiaries 3.6 — (25.6) Tax and interest expense for uncertainty in income taxes — (0.1) (10.8) Noncontrolling interest income (loss) (0.1) 0.1 (0.7) Effect of changes in tax laws — (0.1) (2.4) Expiration of loss carryforward 1.9 0.1 (7.0) Other—net 3.0 (0.9) (1.9) Effective income tax rate 26.4 % 27.7 % 24.7 % Note: (1) In October 2019, a wholly owned subsidiary of the MUFG Group was sold. The sale resulted in the realization of tax benefits that were not previously recognized as deferred tax assets, resulting in a ¥85,588 million reduction of income tax expense and a 19.8% reduction in the effective tax rate for the fiscal year ended March 31, 2020 Deferred Tax Assets and Liabilities Deferred tax assets and liabilities are computed for each tax jurisdiction using currently enacted tax rates applicable to periods when the temporary differences are expected to reverse. The tax effects of the items comprising the MUFG Group’s net deferred tax assets at March 31, 2021 and 2022 were as follows: 2021 2022 (in millions) Deferred tax assets: Allowance for credit losses ¥ 462,369 ¥ 462,303 Operating loss carryforwards 97,844 99,566 Loans 790 37 Accrued liabilities and other 300,942 309,017 Premises and equipment 117,322 124,419 Derivative financial instruments 69,039 154,237 Obligations under operating leases 132,443 106,864 Valuation allowance (137,503) (184,932) Total deferred tax assets 1,043,246 1,071,511 2021 2022 (in millions) Deferred tax liabilities: Investment securities (including trading account assets at fair value under the fair value option) 1,017,131 605,443 Intangible assets 70,575 69,276 Lease transactions 48,519 47,432 Defined benefit plans 81,282 102,998 Investments in subsidiaries and affiliates 338,713 506,829 Right-of-use assets of operating leases 100,260 77,274 Other 92,306 113,335 Total deferred tax liabilities 1,748,786 1,522,587 Net deferred tax assets (liabilities) ¥ (705,540) ¥ (451,076) The valuation allowance was provided primarily against deferred tax assets recorded at MUFG and its subsidiaries with operating loss carryforwards. The valuation allowance is determined to reduce the measurement of deferred tax assets not expected to be realized. Management considers all available evidence, both positive and negative, to determine whether the valuation allowance is necessary based on the weight of that evidence. Management determines the amount of the valuation allowance based on future reversals of existing taxable temporary differences and future taxable income exclusive of reversing temporary differences. Future taxable income is developed from forecasted operating results, based on recent historical trends and approved business plans, the eligible carryforward periods and other relevant factors. For certain subsidiaries where strong negative evidence exists, such as the existence of significant amounts of operating loss carryforwards, cumulative losses and the expiration of unused operating loss carryforwards in recent years, a valuation allowance was recognized against the deferred tax assets as of March 31, 2021 and 2022 to the extent that it is more likely than not that they will not be realized. Income taxes are not provided on undistributed earnings of certain foreign subsidiaries that are considered to be indefinitely reinvested in the operations of such subsidiaries. At March 31, 2021 and 2022, the undistributed earnings of such foreign subsidiaries amounted to approximately ¥105,934 million and ¥108,311 million, respectively. Determination of the amount of unrecognized deferred tax liabilities with respect to these undistributed earnings is not practicable because of the complexity associated with its hypothetical calculation including foreign withholding taxes and foreign tax credits. MUFG has neither the plan nor the intention to dispose of investments in such foreign subsidiaries and, accordingly, does not expect to record capital gains or losses, or otherwise monetize the undistributed earnings of such foreign subsidiaries. Furthermore, under the Japanese tax law, 95% of a dividend received from a foreign company in which a domestic company has held generally at least 25% of the outstanding shares for a continuous period of six months or more ending on the date on which the dividend is declared can be excluded from the domestic company’s taxable income. Therefore, if undistributed earnings of certain foreign subsidiaries are repatriated through dividends, only 5% of the amount of dividends will be included in taxable income. Operating Loss and Tax Credit Carryforwards At March 31, 2022, the MUFG Group had operating loss carryforwards for corporate tax of ¥212,597 million and tax credit carryforwards of ¥54,062 million for tax purposes. Such carryforwards, if not utilized, are scheduled to expire as follows: Operating loss carryforwards Tax credit carryforwards (in millions) Fiscal year ending March 31: 2023 ¥ 4,881 ¥ 458 2024 5,145 328 2025 84,109 188 2026 53,634 94 2027 543 151 2028 — 55 2029 and thereafter 24,022 45,367 No definite expiration date 40,263 7,421 Total ¥ 212,597 ¥ 54,062 Uncertainty in Income Tax The following is a roll-forward of the MUFG Group’s unrecognized tax benefits for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Balance at beginning of fiscal year ¥ 19,160 ¥ 19,249 ¥ 13,829 Gross amount of increases for current year’s tax positions 399 202 28 Gross amount of decreases for current year’s tax positions — (1,919) — Gross amount of increases for prior years’ tax positions 212 489 6,320 Gross amount of decreases for prior years’ tax positions — (2,329) (183) Net amount of changes relating to settlements with tax authorities (81) — — Decreases due to lapse of applicable statutes of limitations (297) (116) (8) Foreign exchange translation and other (144) (1,747) 1,808 Balance at end of fiscal year ¥ 19,249 ¥ 13,829 ¥ 21,794 The MUFG Group classifies interest and penalties, if applicable, related to income taxes as Income tax expense. Accrued interest and penalties (not included in the “unrecognized tax benefits” above) are a component of Other liabilities. The following is a roll-forward of the interest and penalties recognized in the accompanying consolidated financial statements for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Balance at beginning of fiscal year ¥ 3,056 ¥ 2,612 ¥ 2,417 Total interest and penalties in the consolidated statements of operations (398) (398) 156 Total cash settlements, foreign exchange translation and other (46) 203 275 Balance at end of fiscal year ¥ 2,612 ¥ 2,417 ¥ 2,848 The MUFG Group is subject to ongoing tax examinations by the tax authorities of the various jurisdictions in which it operates. The following are the major tax jurisdictions in which the MUFG Group operates and the status of years under audit or open to examination: Jurisdiction Tax years Japan 2021 and forward United States—Federal 2019 and forward United States—California 2015 and forward Indonesia 2018 and forward

Pledged Assets and Collateral

Pledged Assets and Collateral	12 Months Ended
	Mar. 31, 2022
Financial Instruments Pledged as Collateral [Abstract]
Pledged Assets and Collateral	PLEDGED ASSETS AND COLLATERAL Pledged Assets At March 31, 2022, assets mortgaged, pledged, or otherwise subject to lien were as follows: 2022 (in millions) Trading account securities ¥ 11,951,845 Investment securities 21,594,409 Loans 11,718,468 Other 317,444 Total ¥ 45,582,166 The above pledged assets were classified by type of liabilities to which they related as follows: 2022 (in millions) Deposits ¥ 310,450 Payables under repurchase agreements and securities lending transactions 15,383,440 Other short-term borrowings and long-term debt 29,857,428 Other 30,848 Total ¥ 45,582,166 At March 31, 2022, certain investment securities, principally Japanese national government and Japanese government agency bonds, loans, and other assets with a combined carrying value of ¥21,227,472 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. Under Japanese law, Japanese banks are required to maintain certain reserves on deposit with the Bank of Japan based on the amount of deposit balances and certain other factors. There are similar reserve deposit requirements for foreign offices and subsidiaries engaged in banking businesses in foreign countries. At March 31, 2021 and 2022 the reserve funds required to be maintained by the MUFG Group, which are included in Cash and due from banks and Interest-earning deposits in other banks, were ¥2,881,778 million and ¥2,991,833 million, respectively. Collateral The MUFG Group accepts and provides financial assets as collateral for transactions, principally commercial loans, repurchase agreements and securities lending transactions, call money, and derivatives. Financial assets eligible for such collateral include, among others, marketable equity securities, trade and notes receivable and certificates of deposit ("CDs"). Secured parties, including creditors and counterparties to certain transactions with the MUFG Group, may sell or repledge financial assets provided as collateral. Certain contracts, however, may not be specific about the secured party’s right to sell or repledge collateral under the applicable statutes and, therefore, whether or not the secured party is permitted to sell or repledge collateral would differ depending on the interpretations of specific provisions of the existing statutes, contract or certain market practices. If the MUFG Group determines, based on available information, that a financial asset provided as collateral might not be sold or repledged by the secured parties, such collateral is not separately reported in the accompanying consolidated balance sheets. If a secured party is permitted to sell or repledge financial assets provided as collateral by contract or custom under the existing statutes, the MUFG Group reports such pledged financial assets separately on the face of the accompanying consolidated balance sheets. At March 31, 2022, the MUFG Group pledged ¥46,858 billion of assets that may not be sold or repledged by the secured parties. Certain banking subsidiaries accept collateral for commercial loans and certain banking transactions under a standardized agreement with customers, which provides that these banking subsidiaries may require the customers to provide collateral or guarantees with respect to the loans and other banking transactions. Financial assets pledged as collateral are generally negotiable and transferable instruments, and such negotiability and transferability are authorized by applicable legislation. In principle, Japanese legislation permits these banking subsidiaries to repledge financial assets accepted as collateral unless otherwise prohibited by contract or relevant statutes. Nevertheless, the MUFG Group did not sell or repledge nor does it plan to sell or repledge such collateral accepted in connection with commercial loans before a debtor’s default or other credit events specified in the agreements as it is not customary within the banking industry in Japan to dispose of collateral before a debtor’s default and other specified credit events. Derivative agreements commonly used in the marketplace do not prohibit a secured party’s disposition of financial assets received as collateral, and in resale agreements and securities borrowing transactions, securities accepted as collateral may be sold or repledged by the secured parties. At March 31, 2021 and 2022, the fair value of the collateral accepted by the MUFG Group that is permitted to be sold or repledged was ¥30,983 billion and ¥31,167 billion, respectively, of which ¥23,478 billion and ¥23,699 billion, respectively, was sold or repledged.

Deposits

Deposits	12 Months Ended
	Mar. 31, 2022
Deposits [Abstract]
Deposits	DEPOSITS At March 31, 2021 and 2022, the aggregate amount of time deposit accounts (including CDs) in denominations that meet or exceed the insured limit were ¥54,110,025 million and ¥54,819,050 million, respectively. These time deposits included domestic time deposits in denominations that meet or exceed the limit stipulated by the Deposit Insurance Act in Japan, which is ¥10 million, and foreign time deposits in denominations that meet or exceed any country-specific insurance fund limit. Previously, time deposits, including CDs, issued in amounts of ¥10 million or more with respect to domestic deposits and U.S.$100,000 or more with respect to foreign deposits were disclosed and, therefore, the amount at March 31, 2021 was changed to align with the current year disclosure. The maturity information at March 31, 2022 for domestic and foreign time deposits, including CDs, is summarized as follows: Domestic Foreign (in millions) Due in one year or less ¥ 31,917,457 ¥ 24,814,801 Due after one year through two years 4,230,918 210,799 Due after two years through three years 2,456,467 125,802 Due after three years through four years 604,082 89,178 Due after four years through five years 503,677 41,565 Due after five years 750,898 60,812 Total ¥ 40,463,499 ¥ 25,342,957

Call Money and Funds Purchased

Call Money and Funds Purchased	12 Months Ended
	Mar. 31, 2022
Call Money And Funds Purchased [Abstract]
Call Money and Funds Purchased	CALL MONEY AND FUNDS PURCHASED A summary of funds transactions for the fiscal years ended March 31, 2021 and 2022 is as follows: 2021 2022 (in millions, except percentages and days) Outstanding at end of fiscal year: Amount ¥ 2,353,830 ¥ 2,416,313 Principal range of maturities 1 day to 30 days 1 day to 30 days Weighted average interest rate 0.04 % 0.06 %

Due to Trust Account, Short-ter

Due to Trust Account, Short-term Borrowings and Long-term Debt	12 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Due to Trust Account, Short-term Borrowings and Long-term Debt	DUE TO TRUST ACCOUNT, SHORT-TERM BORROWINGS AND LONG-TERM DEBT Mitsubishi UFJ Trust and Banking holds assets on behalf of its customers in an agent, fiduciary or trust capacity. Such trust account assets are not the MUFG Group’s proprietary assets and are managed and accounted for separately. However, excess cash funds of individual trust accounts are often placed with Mitsubishi UFJ Trust and Banking which manages the funds together with its own funds in its proprietary account. Due to trust account reflects a temporary placement of the excess funds from individual trust accounts and, in view of the MUFG Group’s funding, due to trust account is similar to short-term funding, including demand deposits and other overnight funds purchased. The balance changes in response to the day-to-day changes in the excess funds placed by the trust accounts. A summary of due to trust account transactions at March 31, 2021 and 2022 is as follows: 2021 2022 (in millions, except percentages) Amount outstanding at end of fiscal year ¥ 3,891,831 ¥ 6,307,463 Weighted average interest rate on outstanding balance at end of fiscal year 0.00 % 0.00 % At March 31, 2021 and 2022, the MUFG Group had unused lines of credit for financing amounting to ¥4,408,245 million and ¥4,741,464 million, respectively. The amounts principally consist of pooled collateral which are used to cover shortages in the Bank of Japan account and to meet liquidity needs. The MUFG Group may borrow from the Bank of Japan on demand up to the total amount of collateral eligible for credit extension. Other short-term borrowings at March 31, 2021 and 2022 were comprised of the following: 2021 2022 (in millions, except percentages) Domestic offices: Commercial paper ¥ 1,207,610 ¥ 1,491,509 Borrowings from the Bank of Japan 9,238,209 10,231,483 Borrowings from other financial institutions 141,060 68,384 Other 126,060 810,849 (1) Total domestic offices 10,712,939 12,602,225 Foreign offices: Commercial paper 3,281,866 3,776,737 Borrowings from other financial institutions 113,874 82,914 Short-term debentures 7,775 22,059 Other 71,306 59,287 Total foreign offices 3,474,821 3,940,997 Total 14,187,760 16,543,222 Less unamortized discount 37 85 Other short-term borrowings—net ¥ 14,187,723 ¥ 16,543,137 Weighted average interest rate on outstanding balance at end of fiscal year 0.06 % 0.09 % Note: (1) Other include borrowings from the jointly operated designated money in trusts. Long-term debt (with original maturities of more than one year) at March 31, 2021 and 2022 was comprised of the following: 2021 2022 (in millions) MUFG: Obligations under finance leases ¥ 4,989 ¥ 3,326 Unsubordinated debt (1) : Fixed rate bonds, payable in US dollars, due 2022-2039, principally 0.85%-4.29% 4,224,401 5,501,311 Fixed rate bonds, payable in Euro, due 2023-2033, principally 0.34%-1.75% 482,856 508,524 Fixed rate bonds, payable in other currencies, due 2024-2029, principally 2.08%-4.05% (2) 34,262 37,424 Adjustable rate bonds, payable in Japanese yen, due 2025-2032, principally 0.14%-0.42% — 95,900 Adjustable rate bonds, payable in Euro, due 2027, principally 0.34% — 68,350 Floating rate bonds, payable in US dollars, due 2022-2023, principally 1.05%-1.24% 669,464 416,171 Floating rate bonds, payable in Euro, due 2023, principally 0.02% 45,430 47,845 Floating rate bonds, payable in other currencies, due 2024, principally 1.31% (2) 33,744 36,800 Total 5,490,157 6,712,325 Subordinated debt (1) : Fixed rate bonds, payable in Japanese yen, due 2024-2031, principally 0.37%-1.39% 776,886 771,014 Adjustable rate bonds, payable in Japanese yen, due 2027-2031, principally 0.29%-0.58% 1,072,209 905,925 Adjustable rate bonds, payable in Japanese yen, no stated maturity, principally 0.82%-2.50% 1,704,816 1,486,734 Adjustable rate borrowings, payable in Japanese yen, due 2028-2029, principally 0.30%-0.46% 31,500 31,500 Adjustable rate borrowings, payable in Japanese yen, no stated maturity, principally 0.85%-1.17% 87,085 86,725 Floating rate borrowings, payable in Japanese yen, due 2025-2028, principally 0.57%-0.79% 86,000 86,000 Total 3,758,496 3,367,898 Total 9,253,642 10,083,549 MUFG Bank: Obligations under finance leases ¥ 4,628 ¥ 4,419 Unsubordinated debt (1) : Fixed rate bonds, payable in Japanese yen, due 2022-2027, principally 0.63%-2.34% 123,300 72,400 Fixed rate bonds, payable in US dollars, due 2023-2052, principally 0.00%-4.70% 1,041,115 1,052,443 Fixed rate bonds, payable in Euro, due 2033, principally 1.81% 109,619 6,152 Fixed rate bonds, payable in other currencies, due 2047, principally 0.00% (2) 3,100 — Fixed rate borrowings, payable in Japanese yen, due 2022-2028, principally 0.00%-0.25% 18,689,074 18,582,830 Fixed rate borrowings, payable in US dollars, due 2026-2030, principally 0.72%-2.93% 7,833 8,371 Floating rate borrowings, payable in US dollars, due 2022-2031, principally 0.16%-4.45% 721,941 714,718 Floating rate borrowings, payable in Euro, due 2025-2036, principally 0.00%-0.40% 111,611 103,231 Total 20,807,593 20,540,145 Subordinated debt (1) : Fixed rate bonds, payable in Japanese yen, due 2022-2031, principally 1.39%-2.91% 350,900 236,000 Fixed rate borrowings, payable in Japanese yen, due 2022-2035, principally 0.43%-2.24% 73,400 71,000 Adjustable rate borrowings, payable in Japanese yen, due 2028, principally 1.06% 10,000 10,000 Floating rate borrowings, payable in Japanese yen, due 2027, principally 0.25% 15,000 15,000 Total 449,300 332,000 Obligations under loan securitization transaction accounted for as secured borrowings due 2022-2080, principally 0.13%-10.00% 618,072 519,718 Total 21,879,593 21,396,282 2021 2022 (in millions) Other subsidiaries: Obligations under finance leases ¥ 10,520 ¥ 8,359 Unsubordinated debt (1) : Fixed rate borrowings, bonds and notes, payable in Japanese yen, due 2022-2051, principally 0.00%-17.30% 878,276 1,088,884 Fixed rate borrowings, bonds and notes, payable in US dollars, due 2022-2036, principally 0.00%-21.50% 885,950 124,841 Fixed rate borrowings, bonds and notes, payable in Euro, due 2024-2030, principally 0.00% 2,719 10,796 Fixed rate borrowings, bonds and notes, payable in Thai baht, due 2022-2028, principally 0.00%-7.15% 349,666 230,630 Fixed rate borrowings, bonds and notes, payable in other currencies, due 2022-2037, principally 0.00%-9.50% (2) 320,663 306,778 Floating/Adjustable rate borrowings, bonds and notes, payable in Japanese yen, due 2022-2052, principally 0.00%-65.00% 1,007,882 1,000,691 Floating/Adjustable rate borrowings, bonds and notes, payable in US dollars, due 2022-2032, principally 0.00%-53.50% 174,997 130,597 Floating/Adjustable rate bonds and notes, payable in Euro, due 2022-2024, principally 0.00%-3.00% 1,092 230 Total 3,621,245 2,893,447 Subordinated debt (1) : Fixed rate borrowings, bonds and notes, payable in Japanese yen, due 2022-2030, principally 1.36%-2.61% 184,894 114,946 Fixed rate bonds and notes, payable in US dollars, due 2022-2030, principally 7.50%-9.90% 1,212 2,262 Fixed rate bonds and notes, payable in Thai baht, due 2027-2031, principally 3.00%-3.90% 209,189 208,581 Fixed rate bonds and notes, payable in other currencies, due 2021, principally 0.00% (2) 6,915 — Floating rate bonds and notes, payable in US dollars, due 2028, principally 6.90% 3,820 2,866 Total 406,030 328,655 Obligations under loan securitization transaction accounted for as secured borrowings due 2022, principally 2.25% 11 1 Total 4,037,806 3,230,462 Total 35,171,041 34,710,293 Debt issuance cost ¥ (13,390) ¥ (13,694) Total ¥ 35,157,651 ¥ 34,696,599 Notes: (1) Adjustable rate debts are debts where interest rates are reset in accordance with the terms of the debt agreements, and floating rate debts are debts where interest rates are repriced in accordance with movements of markets indices. (2) Minor currencies, such as Australian dollar, British pound, Indonesian rupiah, Brazilian real, Russian ruble etc., excluding Japanese yen, US dollars, Euro and Thai baht have been summarized into the “Other currencies” classification. The MUFG Group uses derivative financial instruments to manage its interest rate and currency exposures for certain debts. The derivative financial instruments include swaps, forwards, options and other types of derivatives. As a result of these derivative instruments, the effective rates reflected in the table above may differ from the coupon rates. The interest rates for the adjustable and floating rate debt shown in the above table are those in effect at March 31, 2021 and 2022. Certain debt agreements permit the MUFG Group to redeem the related debt, in whole or in part, prior to maturity at the option of the issuer on terms specified in the respective agreements. The following is a summary of maturities of long-term debt subsequent to March 31, 2022 : MUFG BK Other subsidiaries Total (in millions) Fiscal year ending March 31: 2023 ¥ 987,009 ¥ 981,284 ¥ 1,026,760 ¥ 2,995,053 2024 827,301 1,107,551 427,939 2,362,791 2025 1,060,164 16,551,665 398,353 18,010,182 2026 966,692 1,218,584 223,445 2,408,721 2027 414,824 156,907 186,208 757,939 2028 and thereafter 5,827,559 1,380,291 967,757 8,175,607 Total ¥ 10,083,549 ¥ 21,396,282 ¥ 3,230,462 ¥ 34,710,293 New Issuances of Bonds for Basel III For the fiscal year ended March 31, 2022, the MUFG Group issued to institutional investors in Japan ¥40,000 million aggregate principal amount of unsecured perpetual subordinated Additional Tier 1 notes. These notes are subject to the MUFG Group’s discretion to cease interest payments and a write-down of the principal upon the occurrence of certain events, including when the MUFG Group’s Common Equity Tier 1 ratio declines below 5.125%, when the MUFG Group is deemed to be at risk of becoming non-viable or when the MUFG Group becomes subject to bankruptcy proceedings.

Severance Indemnities and Pensi

Severance Indemnities and Pension Plans	12 Months Ended
	Mar. 31, 2022
Retirement Benefits [Abstract]
Severance Indemnities and Pension Plans	SEVERANCE INDEMNITIES AND PENSION PLANS Defined Benefit Pension Plans The MUFG Group has funded non-contributory defined benefit pension plans, which cover substantially all of its employees and mainly provide for lifetime annuity payments commencing at age 65 (“pension benefits”) based on eligible compensation at the time of severance, rank, years of service and other factors. MUFG Bank and certain domestic subsidiaries, Mitsubishi UFJ Trust and Banking, Mitsubishi UFJ Securities Holdings, Mitsubishi UFJ NICOS and some subsidiaries of MUFG have non-contributory Corporate Defined Benefit Pension plans which provide benefits to all their domestic employees. The MUFG Group also offers qualified and nonqualified defined benefit pension plans in foreign offices and subsidiaries for their employees. The qualified plans are non-contributory defined pension plans, which provide benefits upon retirement based on years of service and average compensation and cover substantially all of the employees of such foreign offices and subsidiaries. With respect to the offices and subsidiaries in the United States of America, the qualified plans are funded on a current basis in compliance with the requirement of the Employee Retirement Income Security Act of the United States of America. The nonqualified plans are non-contributory defined benefit pension plans, under which certain employees earn pay and interest credits on compensation amounts above the maximum stipulated by applicable laws under the qualified plans. Severance Indemnities Plans The MUFG Group has SIPs under which their employees in Japan, other than those who are directors, are entitled, under most circumstances, upon mandatory retirement at normal retirement age or earlier termination of employment, to lump-sum severance indemnities based on eligible compensation at the time of severance, rank, years of service and other factors. Under SIPs, benefit payments in the form of a lump-sum cash payment with no option to receive annuity payments, upon mandatory retirement at normal retirement age or earlier termination of employment, are provided. When a benefit is paid in a single payment to a benefit payee under the plans, the payment represents final relief of the obligation. Other Postretirement Plans The MUFG Group’s foreign offices and subsidiaries, primarily in the United States of America, provide their employees with certain postretirement medical and life insurance benefits (“other benefits”). As part of the anticipated transaction discussed in Note 2, assets and obligations of defined benefit pension plan and other postretirement plan, which MUFG Union Bank maintains, will be assigned to MUFG Bank and U.S. Bancorp in proportion to each entity’s share of the underlying participant obligations of the plans. The disclosures in the remainder of this note involving future years disregard the impact of this transaction. Net periodic cost of pension benefits and other benefits for the fiscal years ended March 31, 2020, 2021 and 2022 include the following components: Domestic subsidiaries Foreign offices and subsidiaries 2020 2021 2022 2020 2021 2022 Pension benefits and SIP Pension benefits and SIP Pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits Pension benefits Other benefits (in millions) Service cost—benefits earned during the fiscal year ¥ 49,194 ¥ 46,861 ¥ 44,160 ¥ 14,406 ¥ 366 ¥ 13,947 ¥ 229 ¥ 16,853 ¥ 140 Interest cost on projected benefit obligation 10,969 11,091 11,995 17,370 1,159 14,295 793 11,233 494 Expected return on plan assets (74,744) (71,078) (81,902) (31,382) (1,882) (31,161) (2,118) (33,269) (2,415) Amortization of net actuarial loss 5,641 17,019 770 8,685 1,162 11,560 208 16,573 (64) Amortization of prior service cost (1,204) (1,205) (1,280) (2,633) (1,881) (2,614) (448) (2,802) (385) Loss (gain) on settlements and curtailment (2,366) (4,605) (5,820) 223 — 30 — 44 — Net periodic benefit cost (income) ¥ (12,510) ¥ (1,917) ¥ (32,077) ¥ 6,669 ¥ (1,076) ¥ 6,057 ¥ (1,336) ¥ 8,632 ¥ (2,230) The following table summarizes the assumptions used in computing the present value of the projected benefit obligations and the net periodic benefit cost: Domestic subsidiaries Foreign offices and subsidiaries 2020 2021 2022 2020 2021 2022 Pension benefits and SIP Pension benefits and SIP Pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits Pension benefits Other benefits (in millions) Weighted-average assumptions used: Discount rates in determining expense 0.61 % 0.63 % 0.71 % 3.80 % 3.87 % 2.94 % 2.72 % 2.19 % 1.82 % Discount rates in determining benefit obligation 0.63 0.71 0.86 3.05 2.96 2.34 2.23 2.78 2.63 Rates of increase in future compensation level for determining expense 3.21 3.46 3.46 5.01 — 5.12 — 5.09 — Rates of increase in future compensation level for determining benefit obligation 3.46 3.46 3.46 5.12 — 5.09 — 5.04 — Expected rates of return on plan assets 2.89 2.93 2.89 6.25 7.00 6.19 7.00 5.91 7.00 Cash balance crediting rate for determining expense 2.46 2.46 2.46 3.03 — 2.39 — 1.62 — Cash balance crediting rate for determining benefit obligation 2.46 2.46 2.46 2.39 — 1.62 — 1.94 — The following tables present the assumed health care cost trend rates for foreign offices and subsidiaries, which are used to measure the expected cost of benefits for the next year: MUAH Other than MUAH 2021 (1) 2022 (1) 2021 (1) 2022 (1) Initial trend rate 4.17 % 4.13 % 6.50 % 6.50 % Ultimate trend rate 3.78 % 3.77 % 4.50 % 4.50 % Year the rate reaches the ultimate trend rate 2028 2029 2028 2029 Note: (1) Fiscal years of MUFG Americas Holdings and foreign subsidiaries end on December 31. Therefore, the above tables present the rates and amounts at December 31, 2020 and 2021, respectively. The following table sets forth the combined funded status and amounts recognized in the accompanying consolidated balance sheets at March 31, 2021 and 2022: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 Non-contributory pension benefits and SIP Non-contributory pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits (in millions) Change in benefit obligation: Benefit obligation at beginning of fiscal year ¥ 1,807,905 ¥ 1,753,483 ¥ 547,013 ¥ 32,383 ¥ 580,953 ¥ 31,354 Service cost 46,861 44,160 13,947 229 16,853 140 Interest cost 11,091 11,995 14,295 793 11,233 494 Plan participants’ contributions — — 30 440 — 433 Acquisitions/ Divestitures (2,845) (242) (260) — (130) — Amendments (22) (1,054) (1,187) — 402 — Actuarial loss (gain) (21,558) (28,814) 51,724 (1) 1,506 (24,611) (1) (2,269) Benefits paid (65,730) (65,853) (20,816) (2,488) (24,501) (2,580) Lump-sum payment (22,219) (21,570) (2,825) — (3,591) — Translation adjustments and other — — (20,968) (1,509) 63,131 3,219 Benefit obligation at end of fiscal year 1,753,483 1,692,105 580,953 31,354 619,739 30,791 Change in plan assets: Fair value of plan assets at beginning of fiscal year 2,432,847 2,858,013 559,508 31,919 604,404 33,349 Actual return on plan assets 472,185 77,848 82,615 5,165 49,277 4,619 Employer contributions 21,151 20,487 3,896 181 4,627 (116) Acquisitions/ Divestitures (2,440) 8 — — — — Plan participants’ contributions — — 30 440 — 433 Benefits paid (65,730) (65,853) (20,816) (2,488) (24,501) (2,580) Translation adjustments and other — — (20,829) (1,868) 72,057 3,823 Fair value of plan assets at end of fiscal year 2,858,013 2,890,503 604,404 33,349 705,864 39,528 Amounts recognized in the consolidated balance sheets: Prepaid benefit cost ¥ 1,122,507 ¥ 1,216,703 ¥ 94,445 ¥ 6,754 ¥ 153,861 ¥ 12,104 Accrued benefit cost (17,977) (18,305) (70,994) (4,759) (67,736) (3,367) Net amount recognized ¥ 1,104,530 ¥ 1,198,398 ¥ 23,451 ¥ 1,995 ¥ 86,125 ¥ 8,737 Note: (1) Significant gains and losses related to changes in the benefit obligation for the fiscal years ended March 31, 2021 and 2022 primarily result from changes in the discount rate. The aggregated accumulated benefit obligations of these plans at March 31, 2021 and 2022 were as follows: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 (in millions) Aggregated accumulated benefit obligations ¥ 1,719,798 ¥ 1,663,543 ¥ 554,375 ¥ 596,153 The projected benefit obligations, accumulated benefit obligations and fair value of plan assets for the plans with accumulated benefit obligations in excess of plan assets at March 31, 2021 and 2022 were as follows: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 (in millions) Projected benefit obligations ¥ 24,527 ¥ 25,327 ¥ 92,527 ¥ 87,876 Accumulated benefit obligations 24,527 25,327 68,720 67,612 Fair value of plan assets 6,738 7,223 21,532 20,139 MUFG Bank, Mitsubishi UFJ Trust and Banking, Mitsubishi UFJ Securities Holdings, Mitsubishi UFJ NICOS and other subsidiaries paid special lump-sum termination benefits which are not a part of pension plans to certain early-terminated employees. The amounts charged to operations for such early termination benefits for the fiscal years ended March 31, 2020, 2021 and 2022 were ¥13,883 million, ¥16,716 million and ¥16,235 million, respectively. The following table presents the amounts recognized in Accumulated OCI of the MUFG Group at March 31, 2021 and 2022: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 Pension benefits and SIP Pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits (in millions) Net actuarial loss (gain) ¥ 1,557 ¥ (18,183) ¥ 96,807 ¥ 3,255 ¥ 47,093 ¥ (1,070) Prior service cost (3,072) (2,845) (6,167) (1,869) (3,742) (1,650) Gross amount recognized in Accumulated OCI (1,515) (21,028) 90,640 1,386 43,351 (2,720) Taxes (41,639) (36,389) (23,900) (489) (12,092) 616 Net amount recognized in Accumulated OCI ¥ (43,154) ¥ (57,417) ¥ 66,740 ¥ 897 ¥ 31,259 ¥ (2,104) The following table presents OCI for the fiscal years ended March 31, 2021 and 2022: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 Pension benefits and SIP Pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits (in millions) Net actuarial loss (gain) arising during the year ¥ (423,283) ¥ (24,790) ¥ 319 ¥ (1,541) ¥ (40,559) ¥ (4,471) Prior service cost arising during the year (22) (1,053) (1,187) — 402 55 Losses (gains) due to amortization: Net actuarial loss (gain) (17,019) (770) (11,560) (208) (16,573) 64 Prior service cost 1,205 1,280 2,614 448 2,802 385 Curtailment and settlement 4,605 5,820 (30) — (44) — Foreign currency translation adjustments — — (5,808) (173) 6,683 (139) Total changes in Accumulated OCI ¥ (434,514) ¥ (19,513) ¥ (15,652) ¥ (1,474) ¥ (47,289) ¥ (4,106) Investment policies MUFG’s investment policy for plan assets is based on an asset liability matching strategy which is intended to maintain adequate liquidity for benefit payments and to achieve a stable increase in the plan assets in the medium and long-term through proper risk control and return maximization. As a general rule, investment policies for plan assets are reviewed periodically for some plans and in the following situations for all plans: (1) large fluctuations in pension plan liabilities caused by modifications to pension plans, or (2) changes in the market environment. The plan assets allocation strategies are the principal determinant in achieving expected investment returns on the plan assets. Actual asset allocations may fluctuate within acceptable ranges due to market value variability. Plan assets are managed by a combination of internal and external asset management companies and are rebalanced when market fluctuations cause an asset category to fall outside of its strategic asset allocation range. Performance of each plan asset category is compared against established indices and similar plan asset groups to evaluate whether the risk associated with the portfolio is appropriate for the level of return. The weighted-average target asset allocation of plan assets for the pension benefits and other benefits at March 31, 2022 was as follows: Domestic subsidiaries Foreign offices and subsidiaries Asset category Pension benefits and SIP Pension benefits Other benefits Japanese equity securities 35.5 % — % — % Japanese debt securities 28.4 — — Non-Japanese equity securities 14.8 41.3 63.0 Non-Japanese debt securities 14.5 42.0 27.0 Real estate 1.5 10.2 10.0 Short-term assets and other 5.3 6.5 — Total 100.0 % 100.0 % 100.0 % Basis and procedure for estimating long-term return of each asset category MUFG’s expected long-term rate of return on plan assets for domestic defined benefit pension plans and SIPs is based on a building-block methodology, which calculates the total long-term rate of return of the plan assets by aggregating the weighted rate of return derived from both long-term historical performance and forward-looking return expectations from each asset category. MUFG has determined the expected long-term rate of return for each asset category as follows: • Japanese equity securities: the rate for Japanese debt securities plus a premium for the risk associated with Japanese equity securities • Japanese debt securities: economic growth rate of Japan • Non-Japanese equity securities: the rate for non-Japanese debt securities plus a premium for the risk associated with non-Japanese equity securities • Non-Japanese debt securities: global economic growth rate Foreign offices and subsidiaries periodically reconsider the expected long-term rate of return for their plan assets. They evaluate the investment return volatility of different asset categories and compare the liability structure of their pension and other benefits to those of other companies, while considering their funding policy to maintain a funded status sufficient to meet participants’ benefit obligations, and reduce long-term funding requirements and pension costs. Based on this information, foreign offices and subsidiaries update the expected long-term rate of return. Estimated future benefit payments The following table presents benefit payments expected to be paid, which include the effect of expected future service for the fiscal years indicated: Domestic subsidiaries Foreign offices and subsidiaries Pension benefits and SIP Pension benefits Other benefits (in millions) Fiscal year ending March 31: 2023 ¥ 80,812 ¥ 26,258 ¥ 2,198 2024 79,376 27,869 2,228 2025 79,934 28,678 2,203 2026 78,977 30,656 2,142 2027 77,807 32,659 2,062 Thereafter (2028-2032) 380,256 197,642 8,335 Fair value measurement of the plan assets The following is a description of the valuation methodologies used for plan assets measured at fair value as well as the classification of the plan assets pursuant to the fair value hierarchy described in Note 31. Government bonds and other debt securities When quoted prices are available in an active market, the MUFG Group adopts the quoted prices to measure the fair value of securities and such securities are classified in Level 1 of the fair value hierarchy. Level 1 securities include Japanese government bonds, most non-Japanese government bonds and certain corporate bonds. When quoted prices are available but not traded actively, such securities are classified in Level 2 of the fair value hierarchy. When quoted prices are not available, the MUFG Group generally estimates fair values by using non-binding prices obtained from independent pricing vendors. Such securities are generally classified in Level 2 of the fair value hierarchy. Level 2 securities include certain non-Japanese government bonds, official institution bonds and corporate bonds. When there is lack of liquidity for securities or significant inputs adopted to the fair value measurements are unobservable, such securities are classified in Level 3 of the fair value hierarchy. Such Level 3 securities mainly consist of non-Japanese corporate bonds. Marketable equity securities When quoted prices are available in an active market, the MUFG Group adopts the quoted prices to measure the fair value of marketable equity securities and such securities are classified in Level 1 of the fair value hierarchy. When quoted prices are available but not traded actively, such securities are classified in Level 2 of the fair value hierarchy. Japanese pooled funds Japanese pooled funds are investment fund vehicles designed for Japanese pension plan investments under Japanese pension trust fund regulations. Based upon the nature of the funds’ investments, Japanese pooled funds are categorized into four major fund types: Japanese marketable equity securities type, Japanese debt securities type, Non-Japanese marketable equity securities type and Non-Japanese debt securities type. The other types of funds invest in short-term financial instruments or loans receivable. Japanese pooled funds are generally readily redeemable at their net asset values. The fair values of Japanese pooled funds are measured at their net asset values per share (or its equivalent) as a practical expedient. Other investment funds Other investment funds include mutual funds, private investments funds, common collective funds, private equity funds and real estate funds. The listed investment funds or mutual funds are valued at quoted prices and classified in Level 1 or Level 2 of the fair value hierarchy. When there is no available market quotation, the fair values are generally determined at net asset values per share (or its equivalent) as a practical expedient. Other investment funds classified in Level 3 of the fair value hierarchy consist of certain real estate funds whose fair values are not measured at their net asset values but by using significant unobservable inputs and there is inherent lack of the funds’ liquidity. Japanese general accounts of life insurance companies These instruments are contracts with life insurance companies that guarantee return of a certain level of fixed income, which are mainly invested in assets with low market risk such as Japanese debt securities. They are measured at conversion value and classified in Level 2 of the fair value hierarchy. Other investments Other investments mainly consist of call loans and the rest consist of miscellaneous accounts such as deposits with banks and short-term investments. These instruments are generally classified in Level 1 or Level 2 of the fair value hierarchy depending on observability of the inputs to measure their fair values. The following table presents the fair value of each major category of plan assets as of March 31, 2021 and 2022: Pension benefits and SIP Investments: At March 31, 2021 Domestic subsidiaries Foreign offices and subsidiaries Assets category Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total (in millions) Japanese government bonds ¥ 145,236 ¥ — ¥ — ¥ 145,236 ¥ — ¥ — ¥ — ¥ — Non-Japanese government bonds — — — — 44,105 4,645 — 48,750 Other debt securities 10,136 14,065 230 24,431 — 117,696 — 117,696 Japanese marketable equity securities 862,096 — — 862,096 — — — — Non-Japanese marketable equity securities 81,525 588 — 82,113 34,584 671 — 35,255 Other investment funds — — — — 76,520 164,810 — 241,330 (2) Japanese general account of life insurance companies (1) — 217,827 — 217,827 — — — — Other investments 8,390 5,092 — 13,482 812 13,502 333 14,647 Total ¥ 1,107,383 ¥ 237,572 ¥ 230 ¥ 1,345,185 ¥ 156,021 ¥ 301,324 ¥ 333 ¥ 457,678 At March 31, 2022 Domestic subsidiaries Foreign offices and subsidiaries Assets category Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total (in millions) Japanese government bonds ¥ 140,538 ¥ — ¥ — ¥ 140,538 ¥ — ¥ — ¥ — ¥ — Non-Japanese government bonds — — — — 68,887 5,385 — 74,272 Other debt securities 9,950 14,648 232 24,830 — 133,815 — 133,815 Japanese marketable equity securities 848,482 — — 848,482 — — — — Non-Japanese marketable equity securities 87,983 176 — 88,159 34,659 556 — 35,215 Other investment funds — — — — 83,442 186,372 — 269,814 (2) Japanese general account of life insurance companies (1) — 209,482 — 209,482 — — — — Other investments 11,819 17,563 — 29,382 1,001 11,095 39,729 51,825 Total ¥ 1,098,772 ¥ 241,869 ¥ 232 ¥ 1,340,873 ¥ 187,989 ¥ 337,223 ¥ 39,729 ¥ 564,941 Notes: (1) “Japanese general accounts of life insurance companies” is a contract with life insurance companies that guarantees a return of approximately 1.25% from April 1, 2020 to March 31, 2021 and 1.25% from April 1, 2021 to March 31, 2022. (2) Other investment funds of the foreign offices and subsidiaries include mutual funds and common collective funds of ¥80,717 million and ¥128,005 million, respectively, which were held by MUFG Americas Holdings at December 31, 2020 and ¥86,724 million and ¥146,169 million, respectively, at December 31, 2021. The following table presents fair values of certain investments valued at net asset value per share (or its equivalent) as a practical expedient that were excluded from the above table as of March 31, 2021 and 2022: Domestic subsidiaries Foreign offices and subsidiaries Assets category 2021 2022 2021 2022 (in millions) Japanese pooled funds: Japanese marketable equity securities ¥ 118,509 ¥ 104,793 ¥ — ¥ — Japanese debt securities 324,700 221,250 — — Non-Japanese marketable equity securities 90,598 219,018 — — Non-Japanese debt securities 215,015 249,274 — — Other 153,483 92,558 — — Total pooled funds 902,305 886,893 — — Other investment funds 610,523 (1) 662,737 (1) 146,726 (2) 140,923 (2) Total ¥ 1,512,828 ¥ 1,549,630 ¥ 146,726 ¥ 140,923 Notes: (1) Other investment funds of the domestic subsidiaries include mutual funds and real estate funds of ¥580,617 million and ¥14,763 million, respectively, at March 31, 2021 and ¥625,237 million and ¥15,417 million, respectively, at March 31, 2022. (2) Other investment funds of the foreign offices and subsidiaries include mutual funds, real estate funds and common collective funds of ¥58,086 million, ¥51,318 million and ¥37,161 million, respectively, at March 31, 2021 and ¥25,356 million, ¥80,349 million and ¥34,971 million, respectively, at March 31, 2022.

Other Assets and Liabilities

Other Assets and Liabilities	12 Months Ended
	Mar. 31, 2022
Other Assets And Liabilities [Abstract]
Other Assets and Liabilities	OTHER ASSETS AND LIABILITIES Major components of other assets and liabilities at March 31, 2021 and 2022 were as follows: 2021 2022 (in millions) Other assets: Accounts receivable: Receivables from brokers, dealers and customers for securities transactions ¥ 400,776 ¥ 644,443 Other (1) 1,162,424 1,187,311 Investments in equity method investees 2,560,339 3,066,738 Prepaid benefit cost (Note 13) 1,223,706 1,356,603 Cash collateral pledged for derivative transactions (Note 9) 2,005,136 2,893,178 Cash collateral for the use of Bank of Japan’s settlement infrastructure 998,838 933,000 Accrued interest 259,336 246,271 Deferred tax assets (Note 8) 122,031 79,191 Right-of-use assets of operating leases (Note 7) 338,547 261,803 Assets held for sale relating to transferred business of MUFG Union Bank (Note 2) — 11,621,567 Other 4,250,171 4,421,979 Total ¥ 13,321,304 ¥ 26,712,084 Other liabilities: Accounts payable: Payables to brokers, dealers and customers for securities transactions ¥ 1,202,371 ¥ 1,970,158 Other 1,281,436 1,311,035 Obligations to return securities received as collateral (Notes 15, 16 and 31) 6,581,759 6,826,215 Accrued interest 110,856 98,183 Deferred tax liabilities (Note 8) 827,571 530,267 Allowance for off-balance sheet credit instruments 83,615 126,055 Accrued benefit cost (Note 13) 93,730 89,062 Guarantees and indemnifications 38,123 45,358 Cash collateral received for derivative transactions (Note 9) 909,641 1,017,580 Obligations under operating leases (Note 7) 476,104 384,183 Liabilities held for sale relating to transferred business of MUFG Union Bank (Note 2) — 11,157,660 Accrued and other liabilities 3,465,614 3,106,706 Total ¥ 15,070,820 ¥ 26,662,462 Note: (1) Accounts receivable—Other is primarily comprised of receivables relating to the card business. The provision or reversal of the allowance for credit losses relating to the receivables is included in Non-interest expense on the consolidated statements of operations. The receivables relating to the card business include ¥4,980 million and ¥5,483 million of past due receivables (1-3 months past due receivables of ¥2,252 million and ¥2,581 million, and greater than 3 months past due receivables of ¥2,728 million and ¥2,902 million) as of March 31, 2021 and 2022 respectively, and the credit quality for these receivables is primarily evaluated based on the extent of past due. The outstanding balance of the accounts receivable is presented on a net basis after allowance for credit losses. Upon adoption of the new guidance on measurement of credit losses on financial instruments as of April 1, 2020, the amount of the allowance for credit losses increased by ¥10,248 million. The change of allowance for credit losses on these receivables during the fiscal years ended March 31, 2021 and 2022 is primarily due to provision of the allowance for the receivables. Investments in equity method investees include marketable equity securities carried at ¥1,964,118 million and ¥2,481,644 million at March 31, 2021 and 2022, respectively. Corresponding aggregated market values were ¥3,943,990 million and ¥4,714,562 million respectively. Marketable equity securities include Morgan Stanley’s common stock carried at ¥1,618,579 million and ¥2,058,638 million at March 31, 2021 and 2022, respectively. As of March 31, 2022, the MUFG Group held approximately 21.47% of its common stock. Investments in equity method investees also include investments in Morgan Stanley MUFG Securities, Co., Ltd. at ¥174,190 million and ¥183,932 million at March 31, 2021 and 2022, respectively. The MUFG Group periodically evaluates whether a loss in value of investments in equity method investees is other-than-temporary. As a result of evaluations, the MUFG Group recognized other-than-temporary declines in the value of an investment and recorded impairment losses related to certain affiliated companies of ¥21,672 million, ¥53,758 million and ¥6,949 million for the fiscal years ended March 31, 2020, 2021 and 2022 respectively. The impairment losses are included in Equity in earnings of equity method investees—net in the accompanying consolidated statements of operations. Summarized Financial Information of the MUFG Group’s Equity Method Investees Summarized financial information of Morgan Stanley, the largest portion of the MUFG Group’s equity method investees, as of March 31, 2021 and 2022, and for each of the three years ended March 31, 2022 is as follows: 2021 2022 (in billions) Trading assets ¥ 34,670 ¥ 36,335 Securities purchased under agreements to resell 12,701 15,637 Securities borrowed 11,309 18,480 Total assets 128,288 149,589 Deposits 35,775 44,163 Customer and other payables 25,477 29,815 Borrowings 23,894 28,127 Total liabilities 116,377 136,851 Noncontrolling interests 147 144 2020 2021 2022 (in billions) Net revenues ¥ 4,457 ¥ 5,841 ¥ 6,655 Total non-interest expenses 3,259 3,932 4,498 Income from continuing operations before income taxes 1,140 1,881 2,139 Net income applicable to Morgan Stanley 903 1,433 1,650 Summarized financial information of the MUFG Group’s equity method investees, other than Morgan Stanley as of March 31, 2021 and 2022, and for each of the three years ended March 31, 2022 is as follows: 2021 2022 (in billions) Net loans ¥ 15,417 ¥ 17,107 Total assets 28,459 32,992 Deposits 9,651 11,291 Total liabilities 24,176 27,255 Noncontrolling interests 85 93 2020 2021 2022 (in billions) Total interest income ¥ 1,093 ¥ 1,058 ¥ 1,119 Total interest expense 419 375 335 Net interest income 674 683 784 Provision for credit losses 171 215 207 Income before income tax expense 366 476 582 Net income 285 400 488

Offsetting of Derivatives, Repu

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions	12 Months Ended
	Mar. 31, 2022
Offsetting [Abstract]
Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions	OFFSETTING OF DERIVATIVES, REPURCHASE AGREEMENTS, AND SECURITIES LENDING TRANSACTIONS The following tables present, as of March 31, 2021 and 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 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 setoff 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 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 consolidated balance sheet” column in the tabular disclosure below. At March 31, 2021: Gross amounts of recognized assets/liabilities Gross amounts offset in the consolidated balance sheet Net amounts presented in the consolidated balance sheet Gross amounts not offset in the consolidated balance sheet Net amounts Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 11,997 ¥ — ¥ 11,997 ¥ (8,628) ¥ (605) ¥ 2,764 Receivables under resale agreements 16,053 (2,273) 13,780 (12,687) (37) 1,056 Receivables under securities borrowing transactions 3,370 — 3,370 (3,289) — 81 Total ¥ 31,420 ¥ (2,273) ¥ 29,147 ¥ (24,604) ¥ (642) ¥ 3,901 Financial liabilities: Derivative liabilities ¥ 11,714 ¥ — ¥ 11,714 ¥ (8,545) ¥ (1,624) ¥ 1,545 Payables under repurchase agreements 26,800 (2,232) 24,568 (23,835) (60) 673 Payables under securities lending transactions 843 — 843 (814) (2) 27 Obligations to return securities received as collateral 6,582 — 6,582 (1,931) — 4,651 Total ¥ 45,939 ¥ (2,232) ¥ 43,707 ¥ (35,125) ¥ (1,686) ¥ 6,896 At March 31, 2022: Gross amounts of recognized assets/liabilities Gross amounts offset in the consolidated balance sheet Net amounts presented in the consolidated balance sheet (1) Gross amounts not offset in the consolidated balance sheet Net amounts 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 Note: (1) Net amounts in this 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 Secu

Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings	12 Months Ended
	Mar. 31, 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, 2021 and 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, 2021 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 6,006 ¥ 16,888 ¥ 1,973 ¥ 1,933 ¥ 26,800 Payables under securities lending transactions 789 26 28 — 843 Obligations to return securities received as collateral 5,607 278 528 169 6,582 Total ¥ 12,402 ¥ 17,192 ¥ 2,529 ¥ 2,102 ¥ 34,225 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 Secured borrowing by the class of collateral pledged at March 31, 2021 and 2022 was as follows: March 31, 2021 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 ¥ 7,754 ¥ 104 ¥ 4,022 ¥ 11,880 Foreign government and official institution bonds 13,914 17 738 14,669 Corporate bonds 702 1 214 917 Residential mortgage-backed securities 3,729 — — 3,729 Other debt securities 218 — 5 223 Marketable equity securities 462 721 1,603 2,786 Other 21 — — 21 Total ¥ 26,800 ¥ 843 ¥ 6,582 ¥ 34,225 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

Preferred Stock

Preferred Stock	12 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Preferred Stock	PREFERRED STOCK Pursuant to the Articles of Incorporation, MUFG had been authorized to issue 400,000,000 shares of Class 5 Preferred Stock, 200,000,000 shares of Class 6 Preferred Stock, and 200,000,000 shares of Class 7 Preferred Stock without par value as of March 31, 2022. All classes of preferred stock are non-voting and have preference over common stock for the payment of dividends and the distribution of assets in the event of a liquidation or dissolution of MUFG. They are all non-cumulative and non-participating with

Common Stock and Capital Surplu

Common Stock and Capital Surplus	12 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Common Stock and Capital Surplus	COMMON STOCK AND CAPITAL SURPLUS The changes in the number of issued shares of common stock during the fiscal years ended March 31, 2020, 2021 and 2022 were as follows: 2020 2021 2022 (shares) Balance at beginning of fiscal year 13,667,770,520 13,581,995,120 13,581,995,120 Retirement of shares of common stock (85,775,400) — (300,000,000) Balance at end of fiscal year 13,581,995,120 13,581,995,120 13,281,995,120 Under the Companies Act, issuances of common stock, including conversions of bonds and notes, are required to be credited to the common stock account for at least 50% of the proceeds and to the legal capital surplus account (“legal capital surplus”) for the remaining amounts. The Companies Act permits Japanese companies, upon approval by the Board of Directors, to issue shares in the form of a “stock split,” as defined in the Companies Act. Also, prior to April 1, 1991, Japanese companies were permitted to issue free share distributions. MUFG Bank and Mitsubishi UFJ Trust and Banking from time to time made free share distributions. These free distributions usually ranged from 5% to 10% of outstanding common stock and publicly-owned corporations in the United States issuing shares in similar transactions would be required to account for them as stock dividends as of the shareholders’ record date by reducing retained earnings and increasing the appropriate capital accounts by an amount equal to the fair value of the shares issued. The application of such U.S. accounting practices to the cumulative free distributions made by MUFG Bank and Mitsubishi UFJ Trust and Banking at March 31, 2022, would have increased capital accounts by ¥1,910,106 million with a corresponding decrease in unappropriated retained earnings. The Companies Act permits that common stock, legal reserve, additional paid-in capital, and other capital surplus and retained earnings can be transferred among these accounts under certain conditions upon the approval of a shareholders’ meeting. The Companies Act limits the increase of paid-in capital in case disposition of treasury stock and issuance of common stock are performed at the same time. As for Capital surplus, the fee retained by MUFG’s subsidiary as underwriting compensation, net of stock issuance expense, was included in the total Capital surplus balance. Treasury Stock The Companies Act permits Japanese companies to effect purchases of their own shares pursuant to a resolution by the shareholders at an annual general meeting until the conclusion of the following ordinary general meeting of shareholders, and to hold such shares as their treasury stock indefinitely regardless of purpose. However, the Companies Act requires the amount of treasury stock purchased should be within the amount of retained earnings available for dividends. Disposition of treasury stock is subject to the approval of the Board of Directors and is to follow the procedures similar to a public offering of shares for subscription. From November 14, 2019 to December 23, 2019, MUFG repurchased 85,775,400 shares of MUFG’s common stock by market purchases based on the discretionary dealing contract regarding repurchase of own shares for approximately ¥50 billion, in aggregate, in satisfaction of the resolution adopted at the meeting of the Board of Directors of MUFG held on November 13, 2019. The repurchase plan as authorized by the Board of Directors of MUFG allowed for the repurchase of an aggregate amount of up to 100,000,000 shares, which represents the equivalent of 0.77% of the total number of common shares outstanding, or of an aggregate repurchase amount of up to ¥50 billion. On January 20, 2020, MUFG cancelled all of the acquired shares in satisfaction of the resolution adopted at the meeting of the Board of Directors of MUFG held on November 13, 2019. The purpose of the repurchase is to enhance the return of earnings to shareholders, to improve capital efficiency, and to implement flexible capital policies. MUFG resolved at the meeting of Board of Directors held on November 15, 2021 to repurchase up to the lesser of 300,000,000 shares of our common stock and ¥150 billion from November 16, 2021 to March 31, 2022. Under this share repurchase program, MUFG repurchased 225,408,800 shares of MUFG's common stock for ¥149,999,964,992 from November 2021 to March 2022. Also, MUFG cancelled 300,000,000 shares of treasury stock on November 30, 2021. MUFG intend to agilely engage in repurchases of shares of MUFG's own stock as a means to return profits to shareholders and improve capital efficiency, taking into account MUFG's business performance and capital position, opportunities for growth investments, and market conditions including stock prices. As a general policy, MUFG intends to cancel treasury shares to the extent that such shares exceed approximately 5% of our total issued shares (including treasury shares).

Retained Earnings, Legal Reserv

Retained Earnings, Legal Reserve and Dividends	12 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Retained Earnings, Legal Reserve and Dividends	RETAINED EARNINGS, LEGAL RESERVE AND DIVIDENDS In addition to the Companies Act, Japanese banks, including MUFG Bank and Mitsubishi UFJ Trust and Banking, are required to comply with the Banking Law of Japan (the “Banking Law”). Legal Reserve Set Aside as Appropriation of Retained Earnings and Legal Capital Surplus Under the Companies Act The Companies Act provides that an amount at least equal to 10% of the aggregate amount of cash dividends and certain appropriations of retained earnings associated with cash outlays applicable to each period shall be appropriated and set aside as a legal reserve until the aggregate amount of legal reserve set aside as an appropriation of retained earnings and the legal capital surplus equals 25% of stated capital as defined in the Companies Act. Under the Banking Law The Banking Law provides that an amount at least equal to 20% of the aggregate amount of cash dividends and certain appropriations of retained earnings associated with cash outlays applicable to each fiscal year shall be appropriated and set aside as a legal reserve until the aggregate amount of legal reserve set aside as appropriation of retained earnings and the legal capital surplus equals 100% of stated capital as defined in the Companies Act. Transfer of Legal Reserve Under the Companies Act Under the Companies Act, Japanese companies, including MUFG, were permitted, pursuant to a resolution by the shareholders at a general meeting, to make legal reserve set aside as appropriation of retained earnings and legal capital surplus available for dividends until the aggregate amount of the legal reserve and legal capital surplus equals 25% of stated capital as defined in the Companies Act. Under the Companies Act, Japanese companies, including MUFG, MUFG Bank and Mitsubishi UFJ Trust and Banking, are permitted, primarily pursuant to a resolution by the shareholders at a general meeting, to transfer legal capital surplus and legal reserve to stated capital and/or retained earnings without limitations of thresholds, thereby effectively removing the thresholds provided for in the Companies Act and Banking Law at the company’s discretion. Under the Banking Law Under the Banking Law, Japanese banks, including MUFG Bank and Mitsubishi UFJ Trust and Banking, were permitted, pursuant to a resolution by the shareholders at a general meeting, to set aside a legal reserve as an appropriation of retained earnings and legal capital surplus available for dividends until the aggregate amount of the legal reserve and legal capital surplus equals 100% of stated capital as defined in the Companies Act. Unappropriated Retained Earnings and Dividends In addition to the provision that requires an appropriation for legal reserve as described above, the Companies Act and the Banking Law impose certain limitations on the amount available for dividends. Under the Companies Act, the amount available for dividends is based on the amount recorded in MUFG’s general books of account maintained in accordance with accounting principles generally accepted in Japan （“Japanese GAAP”）. The adjustments included in the accompanying consolidated financial statements but not recorded in MUFG’s general books of account, as explained in Note 1, have no effect on the determination of retained earnings available for dividends under the Companies Act. Under the Banking Law, MUFG, MUFG Bank and Mitsubishi UFJ Trust and Banking have to meet the minimum capital adequacy requirements and distributions of retained earnings of MUFG, MUFG Bank and Mitsubishi UFJ Trust and Banking, which are otherwise distributable to shareholders, are restricted in order to maintain the minimum capital requirements. MUFG, formerly known as Mitsubishi Tokyo Financial Group, was established on April 2, 2001 with common stock of ¥924,400 million, preferred stock of ¥222,100 million, legal capital surplus of ¥2,838,693 million and no retained earnings in accordance with the Commercial Code of Japan (“the Code”), which was replaced by the Companies Act, and Japanese GAAP. On October 1, 2005, MUFG started with common stock and preferred stock of ¥1,383,052 million, a legal capital surplus of ¥3,577,570 million and retained earnings of ¥757,458 million in accordance with the Code and Japanese GAAP. MUFG’s amount available for dividends, at March 31, 2022, was ¥4,440,891 million, which is based on the amount recorded in MUFG’s general books of account under Japanese GAAP. Annual dividends, including those for preferred stock, are approved by the shareholders at an annual general meeting held subsequent to the fiscal year to which the dividends are applicable. In addition, a semi-annual interim dividend payment may be made by resolution of the Board of Directors, subject to limitations imposed by the Companies Act and the Banking Law.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)The following table presents the changes in Accumulated OCI, net of tax and net of noncontrolling interests, for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Accumulated other comprehensive income (loss), net of taxes: Net unrealized gains (losses) on investment securities: Balance at beginning of fiscal year ¥ (369,369) ¥ (344,785) ¥ (383,004) Net change during the fiscal year 24,584 (38,253) (291,226) Effect of adopting new guidance on measurement of credit losses on financial instruments — 34 — Balance at end of fiscal year ¥ (344,785) ¥ (383,004) ¥ (674,230) Net debt valuation adjustments: Balance at beginning of fiscal year ¥ (8,670) ¥ 45,502 ¥ (37,862) Net change during the fiscal year 54,172 (83,364) 23,324 Balance at end of fiscal year ¥ 45,502 ¥ (37,862) ¥ (14,538) Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Balance at beginning of fiscal year ¥ (24,140) ¥ (13,343) ¥ 19,029 Net change during the fiscal year 10,797 32,372 (13,060) Balance at end of fiscal year ¥ (13,343) ¥ 19,029 ¥ 5,969 Defined benefit plans: Balance at beginning of fiscal year ¥ (208,273) ¥ (337,918) ¥ (20,382) Net change during the fiscal year (129,645) 317,536 49,506 Balance at end of fiscal year ¥ (337,918) ¥ (20,382) ¥ 29,124 Foreign currency translation adjustments: Balance at beginning of fiscal year ¥ 326,183 ¥ 230,127 ¥ 132,738 Net change during the fiscal year (96,056) (97,389) 747,970 Balance at end of fiscal year ¥ 230,127 ¥ 132,738 ¥ 880,708 Balance at end of fiscal year ¥ (420,417) ¥ (289,481) ¥ 227,033 The following table presents the before tax and net of tax changes in each component of Accumulated OCI for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 Before tax Tax (expense) or benefit Net of tax 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 ¥ 100,974 ¥ (2,260) ¥ 98,714 ¥ (69,247) ¥ (599) ¥ (69,846) ¥ (347,106) ¥ 76,360 ¥ (270,746) Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests (107,102) 32,007 (75,095) (383) (547) (930) (2,015) 11,268 9,253 Net change (6,128) 29,747 23,619 (69,630) (1,146) (70,776) (349,121) 87,628 (261,493) Net unrealized gains (losses) on investment securities attributable to noncontrolling interests (965) (32,523) 29,733 Net unrealized gains (losses) on investment securities attributable to Mitsubishi UFJ Financial Group 24,584 (38,253) (291,226) Net debt valuation adjustments: Net debt valuation adjustments 77,765 (23,812) 53,953 (126,007) 38,584 (87,423) 32,735 (10,025) 22,710 Reclassification adjustment for losses included in net income (loss) before attribution of noncontrolling interests 315 (96) 219 5,851 (1,792) 4,059 885 (271) 614 Net change 78,080 (23,908) 54,172 (120,156) 36,792 (83,364) 33,620 (10,296) 23,324 Net debt valuation adjustments attributable to noncontrolling interests — — — Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group 54,172 (83,364) 23,324 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Net unrealized gains (losses) on derivatives qualifying for cash flow hedges 1,375 (560) 815 44,255 (12,359) 31,896 (5,542) 1,825 (3,717) Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests 13,279 (3,452) 9,827 164 115 279 (12,200) 3,143 (9,057) Net change 14,654 (4,012) 10,642 44,419 (12,244) 32,175 (17,742) 4,968 (12,774) 2020 2021 2022 Before tax Tax (expense) or benefit Net of tax 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 derivatives qualifying for cash flow hedges attributable to noncontrolling interests (155) (197) 286 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group 10,797 32,372 (13,060) Defined benefit plans: Defined benefit plans (195,851) 59,426 (136,425) 436,435 (133,404) 303,031 62,946 (17,350) 45,596 Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests 6,643 (1,741) 4,902 22,504 (6,479) 16,025 7,042 (1,689) 5,353 Net change (189,208) 57,685 (131,523) 458,939 (139,883) 319,056 69,988 (19,039) 50,949 Defined benefit plans attributable to noncontrolling interests (1,878) 1,520 1,443 Defined benefit plans attributable to Mitsubishi UFJ Financial Group (129,645) 317,536 49,506 Foreign currency translation adjustments: Foreign currency translation adjustments (99,520) 19,588 (79,932) (61,085) (14,370) (75,455) 853,517 (98,059) 755,458 Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests (2,238) 1,105 (1,133) (57,534) 17,738 (39,796) (4,296) 1,317 (2,979) Net change (101,758) 20,693 (81,065) (118,619) 3,368 (115,251) 849,221 (96,742) 752,479 Foreign currency translation adjustments attributable to noncontrolling interests 14,991 (17,862) 4,509 Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group (96,056) (97,389) 747,970 Other comprehensive income (loss) attributable to Mitsubishi UFJ Financial Group ¥ (136,148) ¥ 130,902 ¥ 516,514 The following table presents the effect of the reclassification of significant items out of Accumulated OCI on the respective line items of the accompanying consolidated statements of operations for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 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 losses (gains) on sales and redemptions of Available-for-sale debt securities ¥ (108,193) ¥ 6,410 ¥ (48,637) Investment securities gains (losses)—net Impairment losses on investment securities 1,590 6 47,069 Investment securities gains Other (499) (6,799) (447) (107,102) (383) (2,015) Total before tax 32,007 (547) 11,268 Income tax expense (benefit) ¥ (75,095) ¥ (930) ¥ 9,253 Net of tax Net debt valuation adjustments ¥ 315 ¥ 5,851 ¥ 885 Equity in earnings of equity method investees—net or Other non-interest income 315 5,851 885 Total before tax (96) (1,792) (271) Income tax expense (benefit) ¥ 219 ¥ 4,059 ¥ 614 Net of tax Net unrealized losses (gains) on derivatives qualifying for cash flow hedges Interest rate contracts Interest rate contracts ¥ 9,878 ¥ (3,579) ¥ (12,017) Interest income on Loans, Foreign exchange contracts 3,399 3,743 (183) Interest expense on Long- term debt or Foreign exchange losses—net Other 2 — — 13,279 164 (12,200) Total before tax (3,452) 115 3,143 Income tax expense (benefit) ¥ 9,827 ¥ 279 ¥ (9,057) Net of tax Defined benefit plans Net actuarial loss (1) ¥ 15,488 ¥ 28,787 ¥ 17,279 Other non-interest expenses Prior service cost (1) (5,718) (4,267) (4,467) Other non-interest expenses Gain on settlements and curtailment, and other (1) (3,127) (2,016) (5,770) Other non-interest income or expenses 6,643 22,504 7,042 Total before tax (1,741) (6,479) (1,689) Income tax expense (benefit) ¥ 4,902 ¥ 16,025 ¥ 5,353 Net of tax Foreign currency translation adjustments ¥ (5,003) ¥ (57,561) ¥ (4,303) Other non-interest income 2,765 27 7 Other non-interest expenses (2,238) (57,534) (4,296) Total before tax 1,105 17,738 1,317 Income tax expense (benefit) ¥ (1,133) ¥ (39,796) ¥ (2,979) Net of tax Total reclassifications for the period ¥ (89,103) ¥ (29,398) ¥ (10,584) Total before tax 27,823 9,035 13,768 Income tax expense (benefit) ¥ (61,280) ¥ (20,363) ¥ 3,184 Net of tax Note:

Regulatory Capital Requirements

Regulatory Capital Requirements	12 Months Ended
	Mar. 31, 2022
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Regulatory Capital Requirements	REGULATORY CAPITAL REQUIREMENTS Japan MUFG, MUFG Bank, Mitsubishi UFJ Trust and Banking and Mitsubishi UFJ Securities Holdings are subject to various regulatory capital requirements promulgated by the regulatory authorities of the countries in which they operate. Failure to meet minimum capital requirements will initiate certain mandatory actions by regulators that, if undertaken, could have a direct material effect on MUFG’s consolidated financial statements. In Japan, MUFG, MUFG Bank, and Mitsubishi UFJ Trust and Banking are subject to regulatory capital requirements promulgated by the Financial Services Agency of Japan (“FSA”) in accordance with the provisions of the Banking Law and related regulations. A banking institution is subject to the minimum capital requirements both on a consolidated basis and a stand-alone basis, and is required to maintain the minimum capital irrespective of whether it operates independently or as a subsidiary under the control of another company. When a bank holding company manages operations of its banking subsidiaries, it is required to maintain the minimum capital adequacy ratio on a consolidated basis in the same manner as its subsidiary banks. The FSA provides two sets of capital adequacy guidelines. One is a set of guidelines applicable to Japanese banks and bank holding companies with their foreign offices conducting international operations, as defined, and the other is applicable to Japanese banks and bank holding companies that are not engaged in international operations conducted by their foreign offices. The Basel Committee on Banking Supervision (“BCBS”) of the Bank for International Settlements (“BIS”) sets capital adequacy standards for all internationally active banks to ensure minimum levels of capital. The Group of Central Bank Governors and Heads of Supervision reached an agreement on the new global regulatory framework, which has been referred to as “Basel III,” in July and September 2010. In December 2010, the Basel Committee agreed on the details of the Basel III rules. Effective as of March 31, 2013, Basel III was adopted by the FSA with transitional measures for Japanese banking institutions with international operations conducted by their foreign offices. MUFG calculated capital ratios as of March 31, 2021 and 2022 in accordance with Basel III. Capital Ratios Basel III is based on “three pillars”: (1) minimum capital requirements, (2) the self-regulation of financial institutions based on supervisory review process, and (3) market discipline through the disclosure of information. As for the denominator of the capital ratio, the Basel framework provides the following risk-based approaches and a range of options for determining risk-weighted assets. “Credit Risk” The Basel framework provides options for determining the risk-weighted assets for credit risk to allow banks to select approaches that are most appropriate for their level of risk assessment. Banks choose one of three approaches: “Standardized Approach,” “Foundation Internal Ratings-Based Approach” or “Advanced Internal Ratings-Based Approach (“AIRB”).” “Market Risk” In the “Amendment to the Capital Accord to incorporate market risks” of the year 1996, a choice between two methodologies “the Standardized Measurement Method” and “Internal Models Approach” is permitted. “Combination of Internal Models Approach and the Standardized Measurement Method” is also allowed under certain conditions. This is unchanged in Basel III. “Operational Risk” Operational risk, which is defined as the risk of loss resulting from inadequate or failed internal processes, people and systems or from external events, is newly added in Basel II. The Basel framework presents three methods for calculating operational risk capital charges: (i) the Basic Indicator Approach; (ii) the Standardized Approach; or (iii) Advanced Measurement Approaches (“AMA”). Banks adopt one of the three approaches to determine the risk-weighted assets for operational risk. Banks need to obtain approval from their supervisors prior to adopting the following approaches to calculate capital requirements for each risk: • the Advanced Internal Ratings-Based Approach for credit risk • the Internal Models Approach for market risk • the Standardized Approach and AMA for operational risk With approval from the FSA, MUFG and most of its major subsidiaries adopt AIRB to calculate capital requirements for credit risk, adopt the AMA to calculate capital requirements for operational risk, as for market risk, adopt the Internal Models Approach mainly to calculate general market risk and adopt the Standardized Measurement Method to calculate specific risk. The MUFG Group’s proprietary assets do not include trust assets under management and administration in a capacity of agent or fiduciary and, accordingly trust account assets are generally not included in the capital measure. However, guarantees for trust principal are counted as off-balance sheet items requiring a capital charge in accordance with the capital adequacy guidelines. Under Basel III, as adopted by the FSA, MUFG’s risk-weighted assets increased, largely reflecting the new capital charge of the credit valuation adjustment ("CVA"), the credit risk related to asset value correlation multiplier for large financial institutions, and the 250% risk-weighted threshold items not deducted from Common Equity Tier 1 capital, as well as the conversion of certain Basel II capital deductions to risk-weighted assets, such as securitizations. On the other hand, as for the numerator of the capital ratio, there are three primary regulatory capital ratios used to assess capital adequacy, Common Equity Tier 1, Tier 1 and Total capital ratios, which are determined by dividing applicable capital components by risk-weighted assets. Tier 1 capital consists of Common Equity Tier 1 capital and Additional Tier 1 capital. Common Equity Tier 1 capital is primarily consisting of common stock, capital surplus, retained earnings, and Accumulated OCI. Regulatory adjustments including certain intangible fixed assets, such as goodwill, and defined-benefit pension fund assets, are made to Common Equity Tier 1. Additional Tier 1 capital generally consists of Basel III compliant preferred securities, and during the transition period, other capital that meets Tier 1 requirements under Basel II standards. Tier 2 capital generally consists of Basel III compliant subordinated debts, capital that meets Tier 2 requirements under Basel II standards during the transition period, certain allowances for credit losses, and noncontrolling interests in subsidiaries’ Tier 2 instruments. Total capital is defined as the sum of Tier 1 and Tier 2 capital. Effective March 31, 2016, the FSA’s capital conservation buffer, countercyclical buffer and the Global Systematically Important Bank (“G-SIB”), as designated by the FSB, surcharge requirements became applicable to Japanese banking institutions with international operations conducted through foreign offices. The requirements had been phased in and fully implemented as of March 31, 2021. In addition to the 4.50% minimum Common Equity Tier 1 capital ratio, MUFG is required to maintain a capital conservation buffer of 2.5% and a G-SIB surcharge of 1.5% as of March 31, 2021 and 2022, and a countercyclical buffer of 0.00% and 0.01% as of March 31, 2021 and 2022, respectively. Leverage Ratios The leverage ratio is designed for monitoring and preventing the build-up of excessive leverage in the banking sector and is expressed as the ratio of Tier 1 capital to both on and off-balance sheet assets adjusted in accordance with the FSA guidance. In December 2017, the Group of Central Bank Governors and Heads of Supervision announced final Basel III reforms. The announced reforms include revisions to the measurement of the leverage ratio and a 3% minimum leverage ratio requirement, plus a G-SIB leverage ratio buffer equal to 50% of the applicable G-SIB capital surcharge. The announcement sets forth implementation dates of January 1, 2018 for the minimum leverage ratio requirement and January 1, 2022 for the G-SIB leverage ratio buffer requirement. Effective as of March 31, 2019, the minimum leverage ratio requirement was adopted by the FSA. The risk-adjusted capital amounts and ratios, and leverage ratios, of MUFG, MUFG Bank and Mitsubishi UFJ Trust and Banking presented in the following table are based on amounts calculated in accordance with Japanese GAAP as required by the FSA. Actual For capital adequacy purposes Amount Ratio Amount Ratio (in millions, except percentages) Consolidated: At March 31, 2021: Total capital (to risk-weighted assets): MUFG (1) ¥ 18,669,510 16.31 % ¥ 13,730,324 12.00 % BK 14,630,443 15.04 7,779,147 8.00 TB 2,099,662 22.47 747,524 8.00 Tier 1 capital (to risk-weighted assets): MUFG (1) 15,982,746 13.96 11,441,937 10.00 BK 12,411,352 12.76 5,834,360 6.00 TB 1,870,988 20.02 560,643 6.00 Common Equity Tier 1 capital (to risk-weighted assets): MUFG (1) 14,113,722 12.33 9,725,646 8.50 BK 10,865,302 11.17 4,375,770 4.50 TB 1,681,140 17.99 420,482 4.50 Leverage ratio: MUFG 15,982,746 5.45 8,781,753 3.00 BK 12,411,352 5.22 7,123,396 3.00 TB 1,870,988 7.53 744,744 3.00 At March 31, 2022: Total capital (to risk-weighted assets): MUFG (1) ¥ 17,858,656 14.29 % ¥ 15,002,201 12.01 % BK 14,076,877 12.94 8,700,226 8.00 TB 1,969,282 20.78 758,073 8.00 Tier 1 capital (to risk-weighted assets): MUFG (1) 15,476,287 12.38 12,503,916 10.01 BK 12,092,189 11.11 6,525,170 6.00 TB 1,803,306 19.03 568,555 6.00 Common Equity Tier 1 capital (to risk-weighted assets): MUFG (1) 13,823,912 11.06 10,630,203 8.51 BK 10,728,587 9.86 4,893,877 4.50 TB 1,640,458 17.31 426,416 4.50 Leverage ratio: MUFG 15,476,287 5.14 9,023,770 3.00 BK 12,092,189 4.96 7,312,672 3.00 TB 1,803,306 6.77 798,855 3.00 Actual For capital Amount Ratio Amount Ratio (in millions, except percentages) Stand-alone: At March 31, 2021: Total capital (to risk-weighted assets): BK ¥ 12,359,493 14.60 % ¥ 6,770,631 8.00 % TB 2,294,694 21.91 837,567 8.00 Tier 1 capital (to risk-weighted assets): BK 10,512,405 12.42 5,077,974 6.00 TB 2,066,480 19.73 628,176 6.00 Common Equity Tier 1 capital (to risk-weighted assets): BK 9,025,272 10.66 3,808,480 4.50 TB 1,876,980 17.92 471,132 4.50 Leverage ratio: BK 10,512,405 5.14 6,127,521 3.00 TB 2,066,480 8.95 691,914 3.00 At March 31, 2022: Total capital (to risk-weighted assets): BK ¥ 11,167,553 11.91 % ¥ 7,498,348 8.00 % TB 2,122,840 19.97 850,030 8.00 Tier 1 capital (to risk-weighted assets): BK 9,565,792 10.20 5,623,761 6.00 TB 1,957,340 18.42 637,523 6.00 Common Equity Tier 1 capital (to risk-weighted assets): BK 8,261,659 8.81 4,217,821 4.50 TB 1,794,840 16.89 478,142 4.50 Leverage ratio: BK 9,565,792 4.59 6,249,606 3.00 TB 1,957,340 7.81 751,302 3.00 Note: (1) Effective March 31, 2016, the FSA’s capital conservation buffer, countercyclical buffer and G-SIB surcharge requirements became applicable to Japanese banking institutions with international operations conducted through foreign offices. As a result, in addition to the 4.50% minimum Common Equity Tier 1 capital ratio, MUFG is required to maintain a capital conservation buffer of 2.5% and a G-SIB surcharge of 1.5% as of March 31, 2021 and 2022, and the countercyclical buffer of 0.00% and 0.01% as of March 31, 2021 and 2022, respectively. Mitsubishi UFJ Morgan Stanley Securities and other securities subsidiaries in Japan and overseas are also subject to regulatory capital requirements of the countries or jurisdictions in which they operate. In Japan, the Financial Instruments and Exchange Act and related ordinance require financial instruments firms to maintain a minimum capital ratio of 120% calculated as a percentage of capital accounts less certain fixed assets, as determined in accordance with Japanese GAAP, against amounts equivalent to market, counterparty credit and operational risks. Specific guidelines are issued as a ministerial ordinance which details the definition of essential components of the capital ratios, including capital, deductible fixed asset items and risks, and related measures. Failure to maintain a minimum capital ratio will trigger mandatory regulatory actions. A capital ratio of less than 140% will call for regulatory reporting and a capital ratio of less than 100% may lead to a suspension of all or part of the business for a period of time and cancellation of a registration. At March 31, 2021, Mitsubishi UFJ Morgan Stanley Securities’s capital accounts less certain fixed assets of ¥475,343 million on a stand-alone basis were 275.4% of the total amounts equivalent to market, counterparty credit and operational risks. At March 31, 2022, its capital accounts less certain fixed assets of ¥486,756 million on a stand-alone basis, are 317.1% of the total amounts equivalent to market, counterparty credit and operational risks. Management believes, as of March 31, 2022, that MUFG, MUFG Bank, Mitsubishi UFJ Trust and Banking, Mitsubishi UFJ Morgan Stanley Securities and other regulated securities subsidiaries met all capital adequacy requirements to which they are subject. United States of America In the United States of America, MUFG Americas Holdings and its banking subsidiary MUFG Union Bank, N.A. (“MUFG Union Bank” or “BK(US)”), MUFG Bank’s largest subsidiaries operating outside Japan, are subject to various regulatory capital requirements administered by the U. S. Federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly additional discretionary, actions by regulators that, if undertaken, could have a material effect on MUFG Americas Holdings’s consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, MUFG Americas Holdings and MUFG Union Bank must meet specific capital guidelines that involve quantitative measures of MUFG Americas Holdings’s and MUFG Union Bank’s assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. MUFG Americas Holdings’s capital amounts and MUFG Union Bank’s prompt corrective action classification are also subject to qualitative judgments by the regulators about components, risk-weightings and other factors. Prompt corrective action provisions are not applicable to bank holding companies such as MUFG Americas Holdings. MUFG Union Bank is subject to laws and regulations that limit the amount of dividends MUFG Union Bank can pay to MUFG Americas Holdings. Quantitative measures established by regulation to help ensure capital adequacy require MUFG Americas Holdings and MUFG Union Bank to maintain minimum amounts and ratios (set forth in the tables below) of Total and Tier 1 capital (as defined in the regulations) to risk-weighted assets (as defined) and of Tier 1 capital (as defined) to quarterly average assets (as defined). In July 2013, the Board of Governors of the Federal Reserve System and the other U.S. Federal banking agencies adopted final rules making significant changes to the U.S. regulatory capital framework for U.S. banking organizations (U.S. Basel III). The final rules are intended to conform this framework to the BCBS’ current international regulatory capital accord (Basel III). These rules replace the U.S. Federal banking agencies’ general risk-based capital rules (commonly known as “Basel I”), advanced approaches rules (commonly known as “Basel II”) that are applicable to certain large banking organizations (including MUFG Union Bank), and leverage rules, and are subject to certain transition provisions. Among other requirements, the U.S. Basel III rules revise the definition of capital, increase minimum capital ratios, and introduce a minimum Common Equity Tier 1 capital ratio of 4.5% and a capital conservation buffer of 2.5% (for a total minimum Common Equity Tier 1 capital ratio of 7%) and a potential countercyclical buffer of up to 2.5%, which would be imposed by regulators at their discretion if it is determined that a period of excessive credit growth is contributing to an increase in financial institution systemic risk; mandate a Tier 1 leverage ratio of 4% and introduce, for large and internationally active bank holding companies, a Tier 1 Supplementary Leverage Ratio that is currently set at 3% and which incorporates off-balance sheet exposures; revise Basel I rules for calculating risk-weighted assets under a standardized approach; modify the existing Basel II advanced approaches rules for calculating risk-weighted assets under U.S. Basel III; and eliminate, for advanced approaches institutions, over a four-year phase-in period beginning on January 1, 2014, the Accumulated OCI or loss exclusion that had applied under Basel I and Basel II rules. As required under U.S. Basel III rules, the 2.5% capital conservation buffer is being implemented on a phased-in basis in equal increments of 0.625% per year over a four-year period that commenced on January 1, 2016. MUFG Americas Holdings and MUFG Union Bank satisfy the minimum capital requirements including the capital conservation buffer on a fully phased-in basis as those requirements were effective as of December 31, 2021. The figures on the table below are calculated according to U.S. Basel III as of December 31, 2020 and 2021. MUFG Americas Holdings’s actual capital amounts and ratios are presented as follows: Actual Minimum capital ratios required (1) Amount Ratio Amount Ratio (in millions, except percentages) MUAH: At December 31, 2020: Total capital (to risk-weighted assets) $ 16,871 16.29 % $ 12,843 12.40 % Tier 1 capital (to risk-weighted assets) 15,823 15.28 10,772 10.40 % Tier 1 capital (to quarterly average assets) (2) 15,823 9.56 6,623 4.00 % Common Equity Tier 1 capital (to risk-weighted assets) 15,823 15.28 9,218 8.90 % At December 31, 2021: Total capital (to risk-weighted assets) $ 17,177 16.32 % $ 11,890 11.30 % Tier 1 capital (to risk-weighted assets) 16,843 16.01 9,786 9.30 % Tier 1 capital (to quarterly average assets) (2) 16,843 10.44 6,453 4.00 % Common Equity Tier 1 capital (to risk-weighted assets) 16,843 16.01 8,208 7.80 % Notes: (1) The minimum capital requirement includes a capital conservation buffer of 4.4% at December 31, 2020 and 3.3% at December 31, 2021. (2) Excludes certain deductions. The figures on the table below are calculated according to U.S. Basel III as of December 31, 2020 and 2021. MUFG Union Bank’s actual capital amounts and ratios are presented as follows: Actual Minimum capital ratios required (1) Ratios OCC requires to be “well capitalized” Amount Ratio Amount Ratio Amount Ratio (in millions, except percentages) BK(US): At December 31, 2020: Total capital (to risk-weighted assets) $ 15,629 16.68 % $ 9,836 10.50 % $ 9,368 10.00 % Tier 1 capital (to risk-weighted assets) 14,634 15.62 7,963 8.50 7,494 8.00 Tier 1 capital (to quarterly average assets) (2) 14,634 11.12 5,262 4.00 6,577 5.00 Common Equity Tier 1 capital (to risk-weighted assets) 14,634 15.62 6,557 7.00 6,089 6.50 At December 31, 2021: Total capital (to risk-weighted assets) $ 16,265 17.36 % $ 9,840 10.50 % $ 9,371 10.00 % Tier 1 capital (to risk-weighted assets) 15,629 16.68 7,966 8.50 7,497 8.00 Tier 1 capital (to quarterly average assets) (2) 15,629 12.14 5,149 4.00 6,436 5.00 Common Equity Tier 1 capital (to risk-weighted assets) 15,629 16.68 6,560 7.00 6,091 6.50 Notes: (1) Beginning January 1, 2019, the minimum capital requirement includes a capital conservation buffer of 2.5%. (2) Excludes certain deductions. Management believes, as of December 31, 2021, that MUFG Americas Holdings and MUFG Union Bank met all capital adequacy requirements to which they are subject. As of December 31, 2020 and 2021, the notification from the OCC categorized MUFG Union Bank as “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well capitalized,” MUFG Union Bank must maintain a minimum total risk-based capital ratio of 10% as of December 31, 2020 and 2021, a Tier 1 risk-based capital ratio of 8% as of December 31, 2020 and 2021, a Tier 1 capital to quarterly average assets of 5% as of December 31, 2020 and 2021, and Common

Earnings (Loss) Per Common Shar

Earnings (Loss) Per Common Share Applicable to Common Shareholders of MUFG	12 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Earnings Per Common Share Applicable to Common Shareholders of MUFG	EARNINGS (LOSS) PER COMMON SHARE APPLICABLE TO COMMON SHAREHOLDERS OF MUFG Reconciliations of net income (loss) and weighted average number of common shares outstanding used for the computation of basic EPS to the adjusted amounts for the computation of diluted EPS for the fiscal years ended March 31, 2020, 2021 and 2022 are as follows: 2020 2021 2022 (in millions) Income (loss) (Numerator): Net income (loss) attributable to Mitsubishi UFJ Financial Group ¥ 305,955 ¥ 1,117,298 ¥ (83,320) Effect of dilutive instruments: Stock acquisition rights and restricted stock units—Morgan Stanley (2,861) (4,159) (5,361) Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions ¥ 303,094 ¥ 1,113,139 ¥ (88,681) 2020 2021 2022 (thousands of shares) Shares (Denominator): Weighted average common shares outstanding 12,912,790 12,859,737 12,798,060 Effect of dilutive instruments: Stock acquisition rights and the common shares of MUFG under the Board Incentive Plan (1) 166 — — Weighted average common shares for diluted computation 12,912,956 12,859,737 12,798,060 2020 2021 2022 (in yen) Earnings (loss) per common share applicable to common shareholders of Mitsubishi UFJ Financial Group: Basic earnings (loss) per common share: Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group ¥ 23.69 ¥ 86.88 ¥(6.51) Diluted earnings (loss) per common share: Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group (1) ¥ 23.47 ¥ 86.56 ¥(6.93) Note:

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Mar. 31, 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. Market risk is the possibility that future changes in market indices make the financial instruments less valuable. The MUFG Group is a party to derivative financial instruments, including swaps, forwards, options and other types of derivatives, dealing primarily with market risk associated with interest rates, foreign currencies, equity and commodity prices, and credit risk associated with counterparty’s nonperformance of transactions. Credit risk is the possibility that a loss may result from a counterparty’s failure to perform according to the terms and conditions of the contract, which may exceed the value of underlying collateral. To reduce credit risk, the MUFG Group may require collateral or guarantees based on a case-by-case assessment of creditworthiness of each customer and evaluation of the instrument. The MUFG Group also uses master netting agreements in order to mitigate overall counterparty credit risk. Trading Activities The MUFG Group’s trading activities include dealing and customer accommodation activities. As part of its trading activities, the MUFG Group offers a variety of derivative financial instruments for managing interest rate and foreign exchange risk to its domestic and foreign corporate and financial institution customers. The MUFG Group also enters into other types of derivative transactions, including equity and credit-related contracts, for its own account. Risk Management Activities As part of the MUFG Group’s risk management activities, asset and liability management is viewed as one of the methods for the MUFG Group to manage its interest rate exposures on interest-bearing assets and liabilities. The MUFG Group uses certain derivative financial instruments in order to minimize significant unplanned fluctuations in earnings that are caused by interest rate volatility. For example, an increase or a decrease in interest income and interest expense on hedged variable rate assets and liabilities as a result of interest rate fluctuations are expected to be substantially offset by the variability in earnings by gains and losses on the derivative instruments that are linked to these hedged assets and liabilities. The MUFG Group enters into interest rate swaps and other contracts primarily to manage the interest rate risk of its loans, investment securities and deposit liabilities. Interest rate contracts, which are generally non-leveraged generic interest rate and basis swaps, options and futures, allow the MUFG Group to effectively manage its interest rate risk position. Option contracts primarily consist of caps, floors, swaptions and options on index futures. Futures contracts used for asset and liability management activities are primarily index futures providing for cash payments based upon the movement of an underlying rate index. The MUFG Group enters into forward exchange contracts, currency swaps and other contracts in response to currency exposures resulting from on-balance sheet assets and liabilities denominated in foreign currencies in order to limit the net foreign exchange position by currency to an appropriate level. Notional Amounts of Derivative Contracts The following table summarizes the notional amounts of derivative contracts at March 31, 2021 and 2022: Notional amounts (1) 2021 2022 (in trillions) Interest rate contracts ¥ 1,308.4 ¥ 1,391.8 Foreign exchange contracts 222.0 245.0 Equity contracts 8.0 7.4 Commodity contracts 0.1 0.1 Credit derivatives 9.8 9.8 Other 3.5 3.2 Total ¥ 1,551.8 ¥ 1,657.3 Note: (1) Includes both written and purchased positions. Impact of Derivatives on the Consolidated Balance Sheets The following table summarizes fair value information on derivative instruments that are recorded on the MUFG Group’s consolidated balance sheets at March 31, 2021 and 2022: Fair value of derivative instruments 2021 (1)(5) 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 ¥ 7,718 ¥ — ¥ 7,718 ¥ 5,445 ¥ — ¥ 5,445 Foreign exchange contracts 3,910 — 3,910 4,801 2 4,803 Equity contracts 231 — 231 151 — 151 Commodity contracts 27 — 27 22 — 22 Credit derivatives 94 — 94 103 — 103 Other (6) 17 — 17 10 — 10 Total derivative assets ¥ 11,997 ¥ — ¥ 11,997 ¥ 10,532 ¥ 2 ¥ 10,534 Derivative liabilities: Interest rate contracts ¥ 7,361 ¥ — ¥ 7,361 ¥ 5,652 ¥ — ¥ 5,652 Foreign exchange contracts 4,022 5 4,027 4,907 1 4,908 Equity contracts 237 — 237 277 — 277 Commodity contracts 27 — 27 22 — 22 Credit derivatives 109 — 109 101 — 101 Other (6) (47) — (47) (65) — (65) Total derivative liabilities ¥ 11,709 ¥ 5 ¥ 11,714 ¥ 10,894 ¥ 1 ¥ 10,895 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 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. (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 Consolidated Statements of Operations The following table provides more detailed information regarding the derivative-related impact on the accompanying consolidated statements of operations for the fiscal years ended March 31, 2020, 2021 and 2022: Gains and losses for trading and risk management derivatives (not designated as hedging instruments) Trading and risk management derivatives gains and losses (Not designated as hedging instruments) 2020 2021 2022 Foreign exchange gains (losses) —net Trading account profits (losses) —net Total Foreign exchange gains (losses) —net Trading account profits (losses) —net Total Foreign exchange gains (losses) —net Trading account profits (losses) —net Total (in billions) Interest rate contracts ¥ — ¥ (173) ¥ (173) ¥ — ¥ 70 ¥ 70 ¥ — ¥ 51 ¥ 51 Foreign exchange contracts (429) — (429) (91) — (91) (39) — (39) Equity contracts — 30 30 — (269) (269) — (98) (98) Credit derivatives — 15 15 — (53) (53) — (34) (34) Other (1) (5) (31) (36) 11 (178) (167) (6) (21) (27) Total ¥ (434) ¥ (159) ¥ (593) ¥ (80) ¥ (430) ¥ (510) ¥ (45) ¥ (102) ¥ (147) 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. Types of such credit derivatives primarily include single name credit default swaps, index and basket credit default swaps. The MUFG Group will have to perform under a credit derivative if a credit event as defined under the contract occurs. Such credit events include bankruptcy, dissolution or insolvency of the referenced entity, default and restructuring of the obligations of the referenced entity. The MUFG Group’s counterparties are banks, broker-dealers, insurance and other financial institutions. The contractual or notional amounts of these credit derivatives represent the maximum potential amounts of future payments without consideration of possible recoveries under recourse provisions or from collateral held or pledged. The table below summarizes certain information regarding protection sold through credit derivatives as of March 31, 2021 and 2022: Protection sold Maximum potential/Notional amount by expiration period Fair value At March 31, 2021: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 294,312 ¥ 2,235,390 ¥ 715,896 ¥ 3,245,598 ¥ (67,707) Non-investment grade 84,780 311,702 59,145 455,627 5,284 Not rated — 1,683 — 1,683 (83) Total 379,092 2,548,775 775,041 3,702,908 (62,506) Index and basket credit default swaps: Investment grade (2) 43,000 470,063 29,133 542,196 (4,753) Non-investment grade 35,427 65,319 — 100,746 (1,165) Not rated 59,534 29,971 852 90,357 (919) Total 137,961 565,353 29,985 733,299 (6,837) Total credit default swaps sold 517,053 3,114,128 805,026 4,436,207 (69,343) Other credit derivatives sold (3) : Investment grade (2) — 16,606 — 16,606 57 Total credit derivatives ¥ 517,053 ¥ 3,130,734 ¥ 805,026 ¥ 4,452,813 ¥ (69,286) 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 Not rated — — — — — 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) Other credit derivatives sold: Investment grade — — — — — Total credit derivatives ¥ 643,285 ¥ 2,982,687 ¥ 836,239 ¥ 4,462,211 ¥ (72,915) 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. (3) Other credit derivatives primarily consist of guarantees for exposures held by the counterparty under interest rate swaps and other types of derivative contracts. Single name credit default swaps —Single name credit default swap protects the buyer against the loss of principal on a bond or loan in case of a default by the issuer. The protection buyer pays a premium to the MUFG Group and is protected for the period of the credit default swap. As the seller of protection, the MUFG Group in turn will have to perform under a credit default swap if a credit event as defined under the contracts occurs. In order to provide an indication of the current payment/performance risk of the credit default swaps, the external credit ratings, primarily those provided by Moody’s and Standard & Poor’s (“S&P”), of the underlying reference entity of the credit default swaps are disclosed. Index and basket credit default swaps —Index and basket credit default swaps are credit default swaps that reference multiple names through underlying baskets or portfolios of single name credit default swaps. Typically, in the event of a default on one of the underlying names, the MUFG Group, as the seller of protection, will have to pay a pro-rata portion of the total notional amount of the credit default index or basket contract. In order to provide an indication of the current payment/performance risk of these credit default swaps, the rating scale based upon internal ratings, which generally correspond to ratings defined by primarily Moody’s and S&P, of the underlying reference entities comprising the basket or index were calculated and disclosed. 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 ¥66 billion and ¥4,097 billion, respectively, at March 31, 2021, and approximately ¥70 billion and ¥4,083 billion, respectively, at March 31, 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

Obligations under Guarantees an

Obligations under Guarantees and Other Off-balance Sheet Instruments	12 Months Ended
	Mar. 31, 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, including standby letters of credit, financial and performance guarantees, credit protection, liquidity facilities, other off-balance sheet credit-related support and similar instruments, in order to meet the customers’ financial and business needs. The tables below present the contractual or notional amounts of such guarantees at March 31, 2021 and 2022. The contractual or notional amounts of these instruments represent the maximum potential amounts of future payments without consideration of possible recoveries under recourse provisions or from collateral held or pledged. For certain types of derivatives, such as written interest rate options and written currency options, the maximum potential future payments are unlimited. Accordingly, it is impracticable to estimate the maximum potential amount of future payments. As such, the notional amounts of the related contracts, other than the maximum potential payments, are included in the table. The MUFG Group mitigates its credit risk exposure resulting from guarantees by utilizing various techniques, including collateralization in the form of cash, securities, and real estate properties based on management’s credit assessment of the guaranteed parties and the related credit profile. In order to manage the credit risk exposure, the MUFG Group also enters into sub-participation contracts with third parties who will fund a portion of the credit facility and bear its share of the loss to be incurred in the event that the customer fails to fulfill its obligations. The following table includes guarantees of ¥499.0 billion and ¥646.1 billion at March 31, 2021 and 2022, respectively, which are syndicated out to third parties. The contractual or notional amounts summarized in the following table do not necessarily bear any direct relationship to the future actual credit exposure, primarily because of risk management techniques of the MUFG Group. Maximum potential/ Contractual or Notional amount Amount by expiration period At March 31, 2021: 1 year or less 1-5 years Over 5 years (in billions) Standby letters of credit and financial guarantees ¥ 4,055 ¥ 3,174 ¥ 698 ¥ 183 Performance guarantees 3,193 2,315 755 123 Derivative instruments (1) 38,499 15,534 15,104 7,861 Liabilities of trust accounts 10,656 5,667 718 4,271 Other 40 6 34 — Total ¥ 56,443 ¥ 26,696 ¥ 17,309 ¥ 12,438 Maximum potential/ Contractual or Notional amount Amount by expiration period At March 31, 2022: 1 year or less 1-5 years Over 5 years (in billions) Standby letters of credit and financial guarantees ¥ 4,731 ¥ 3,733 ¥ 784 ¥ 214 Performance guarantees 3,828 2,807 887 134 Derivative instruments (1) 39,982 14,670 16,988 8,324 Liabilities of trust accounts 12,262 6,413 672 5,177 Other 71 6 65 — Total ¥ 60,874 ¥ 27,629 ¥ 19,396 ¥ 13,849 Note: (1) Credit derivatives sold by the MUFG Group are excluded from this presentation. Nature of Guarantee Contracts Standby letters of credit and financial guarantees generally include an obligation of an issuer or a designated third-party to guarantee the performance of the customer to the beneficiary under the terms of contracts such as lending contracts and other similar financial transactions. The MUFG Group is required to make payments to the guaranteed parties in the event that the customers fail to fulfill the obligations under the contracts. The guarantees whose contractual maturities are over 5 years are mainly comprised of guarantees of housing loans. Performance guarantees are contracts that contingently require the MUFG Group to make payments to the guaranteed party based on another party’s failure to perform under an obligating agreement, except financial obligation. For example, performance guarantees include guarantees of completion of construction projects. 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. In order for the MUFG Group to determine if those derivative instruments meet the definition of guarantees, as prescribed in the guidance on guarantees, the MUFG Group has to track whether the counterparties are actually exposed to losses that will result from the adverse change in the underlyings. Accordingly, the MUFG Group has disclosed information on all credit default swaps and certain written options for which there is a possibility of meeting the definition of guarantees as prescribed in the guidance on guarantees, regardless of whether the counterparties have assets or liabilities related to the underlyings of the derivatives. However, credit derivatives sold by the MUFG Group at March 31, 2021 and 2022 are excluded from this presentation, as they are disclosed in Note 23. Liabilities of trust accounts represent the trustee’s potential responsibility for temporary payments to creditors of liabilities of trust accounts making use of funds of the MUFG Group, unless there are certain agreements with trust creditors that have provisions limiting the MUFG Group’s exposure as a trustee to the trust account assets. A trust may incur external liabilities to obtain certain services during the terms of the trust arrangement. While in principle, any liabilities of a trust are payable by the trust account and its beneficiaries. A trustee’s responsibility may be interpreted to encompass temporary payments for the trust account liabilities when the trust account does not maintain sufficient liquidity available for such liabilities unless the agreement with trust creditors limits the trustee’s exposure to the trust account assets. Liabilities of trust accounts principally includes obligations to return collateral under security lending transactions. The MUFG Group has experienced no significant losses on such responsibilities and its exposure to the risk associated with the temporary payments is judged to be remote because trust account liabilities are generally covered by the corresponding trust account assets. The MUFG Group continuously monitors the liabilities of trust accounts and assesses the trust account’s ability to perform its obligations to prevent any unfavorable outcomes; the MUFG Group claims its recourse for its temporary payments against the trust account assets and the beneficiaries. Carrying Amount At March 31, 2021 and 2022, the carrying amounts of the liabilities related to guarantees and similar instruments set forth above were ¥857,862 million and ¥814,734 million, respectively, which are included in Other liabilities and Trading account liabilities. The guarantees and similar instruments comprising the largest components of the total were options sold in the amount of ¥819,739 million and ¥769,376 million as of March 31, 2021 and 2022, respectively. Credit derivatives sold by the MUFG Group at March 31, 2021 and 2022 are excluded from this presentation, as they are disclosed in Note 23. In addition, Other liabilities include an allowance for off-balance sheet instruments of ¥27,688 million and ¥51,852 million at March 31, 2021 and 2022, respectively, related to these transactions. 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, 2021 and 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. Amount by borrower grade At March 31, 2021: Maximum potential/ Contractual or Notional amount Normal Close Watch (1) Likely to become Bankrupt or Legally/ Virtually Bankrupt (2) Not rated (in billions) Standby letters of credit and financial guarantees ¥ 4,055 ¥ 3,929 ¥ 108 ¥ 15 ¥ 3 Performance guarantees 3,193 3,092 70 3 28 Total ¥ 7,248 ¥ 7,021 ¥ 178 ¥ 18 ¥ 31 Amount by borrower grade At March 31, 2022: Maximum potential/ Contractual or Notional amount Normal Close Watch (1) Likely to become Bankrupt or Legally/ Virtually Bankrupt (2) 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 Notes: (1) Borrowers classified as Close Watch represent those that require close monitoring as the borrower has begun to exhibit elements of potential concern with respect to its business performance and financial condition, the borrower has begun to exhibit elements of serious concern with respect to its business performance and financial condition, including business problems requiring long-term solutions, or the borrower’s loans are TDRs or loans contractually past due 90 days or more for special reasons. (2) Borrowers classified as Likely to become Bankrupt or Legally/Virtually Bankrupt represent those that have a higher probability of default than those categorized as Close Watch due to serious debt repayment problems with poor progress in achieving restructuring plans, the borrower being considered virtually bankrupt with no prospects for an improvement in business operations, or the borrower being legally bankrupt with no prospects for continued business operations because of non-payment, suspension of business, voluntary liquidation or filing for legal liquidation. The guarantees the MUFG Group does not classify based upon internal credit ratings are as follows. The MUFG Group records all derivative contracts at fair value. Aggregate market risk limits have been established, and market risk measures are routinely monitored against these limits. The MUFG Group also manages its exposure to these derivative contracts through a variety of risk mitigation strategies, including, but not limited to, offsetting economic hedge positions. The MUFG Group expects the risk of loss to be remote and believes that the notional amounts of the derivative contracts generally exceed its exposure. Liabilities of trust accounts represent the trustee’s potential responsibility for temporary payments to creditors of liabilities of trust accounts using funds of the MUFG Group. The MUFG Group has experienced no significant losses on such responsibilities and its exposure to the risk associated with the temporary payments is judged to be remote because trust account liabilities are generally covered by the corresponding trust account assets. 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 purposes other than trading. Such off-balance sheet instruments consist of lending-related commitments, including commitments to extend credit and commercial letters of credit that the MUFG Group provides to meet the financing needs of its customers. Once the MUFG Group issues these off-balance sheet instruments, the MUFG Group is required to extend credit to or make certain payments to the customers or beneficiaries specified pursuant to the underlying contracts unless otherwise provided in the contracts. Since many of these commitments expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Substantially all of our off-balance sheet instruments is comprised of commitments to extend credit at March 31, 2022, and approximately 65% of these commitments will expire within one year, 32% from one year to five years and 3% after five years. The table below presents the contractual amounts with regard to the other off-balance sheet instruments at March 31, 2021 and 2022: 2021 2022 (in billions) Commitments to extend credit ¥ 84,614 ¥ 82,886 Commercial letters of credit 835 908 Commitments to make investments 281 478 Commitments to extend credit, which generally have fixed expiration dates or other termination clauses, are binding agreements to lend to customers. Commitments are different from guarantees in that the commitments are generally revocable or have provisions that enable the MUFG Group to avoid payments in the event of violations of any conditions of the contracts and certain deterioration of the potential borrowers’ financial condition. Commercial letters of credit, generally used for trade transactions, are typically secured by the underlying goods. The MUFG Group continually monitors the type and amount of collateral and other securities, and requires counterparties to provide additional collateral or guarantors as necessary.

Variable Interest Entities

Variable Interest Entities	12 Months Ended
	Mar. 31, 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. The following tables present the assets and liabilities of consolidated VIEs recorded on the accompanying consolidated balance sheets at March 31, 2021 and 2022: Consolidated VIEs Consolidated assets At March 31, 2021: 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 ¥ 5,986,887 ¥ 109,439 ¥ 40,061 ¥ 5,433 ¥ 1,015,434 ¥ 4,800,221 ¥ 16,299 Investment funds 374,324 — 15,171 240,327 41,512 — 77,314 Special purpose entities created for structured financing 175,630 — 2,058 4,645 — 113,943 54,984 Repackaged instruments 281,331 3,179 — 73,914 118,199 85,782 257 Securitization of the MUFG Group’s assets 10,358,628 — 996 — — 10,339,273 18,359 Trust arrangements 9,029,390 — — 623,466 1,071,708 7,334,215 1 Other 43,320 323 3,826 17,108 — 4,660 17,403 Total consolidated assets before elimination 26,249,510 112,941 62,112 964,893 2,246,853 22,678,094 184,617 The amounts eliminated in consolidation (8,121,094) (110,243) (31,690) (5,892) (519,561) (7,430,166) (23,542) Total consolidated assets ¥ 18,128,416 ¥ 2,698 ¥ 30,422 ¥ 959,001 ¥ 1,727,292 ¥ 15,247,928 ¥ 161,075 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other liabilities (in millions) Asset-backed conduits ¥ 5,989,188 ¥ — ¥ 4,058,248 ¥ 1,461,043 ¥ 469,897 Investment funds 15,039 — — 5,831 9,208 Special purpose entities created for structured financing 97,226 — — 84,973 12,253 Repackaged instruments 284,795 — 21,343 195,987 67,465 Securitization of the MUFG Group’s assets 10,367,099 — 31,000 9,839,204 496,895 Trust arrangements 9,029,272 7,826,959 — — 1,202,313 Other 39,141 — 3,433 18,315 17,393 Total consolidated liabilities before elimination 25,821,760 7,826,959 4,114,024 11,605,353 2,275,424 The amounts eliminated in consolidation (14,679,458) — (2,422,978) (11,144,547) (1,111,933) The amount of liabilities with recourse to the general credit of the MUFG Group (10,547,483) (7,826,959) (1,657,447) (3,043) (1,060,034) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 594,819 ¥ — ¥ 33,599 ¥ 457,763 ¥ 103,457 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 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, 2021 and 2022: Non-consolidated VIEs On-balance sheet assets On-balance sheet At March 31, 2021: Total assets Maximum Total Trading Investment Loans All Total All other (in millions) Asset-backed conduits ¥ 25,491,847 ¥ 5,606,965 ¥ 4,211,342 ¥ 277 ¥ 1,598,992 ¥ 2,612,073 ¥ — ¥ — ¥ — Investment funds 102,840,486 2,646,071 2,288,210 538,190 501,434 1,213,179 35,407 114,911 114,911 Special purpose entities created for structured financing 38,771,947 4,409,839 3,254,145 476,784 25,234 2,745,441 6,686 10,447 10,447 Repackaged instruments 8,604,182 3,088,564 3,008,695 611,245 2,142,482 204,332 50,636 29,478 29,478 Other 65,455,861 3,039,135 2,176,775 198,144 — 1,915,912 62,719 24,732 24,732 Total ¥ 241,164,323 ¥ 18,790,574 ¥ 14,939,167 ¥ 1,824,640 ¥ 4,268,142 ¥ 8,690,937 ¥ 155,448 ¥ 179,568 ¥ 179,568 Non-consolidated VIEs On-balance sheet assets On-balance sheet At March 31, 2022: Total assets Maximum Total Trading Investment Loans All Total All other (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 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. Analysis of Each Transaction Category Asset-Backed Conduits This category primarily comprises the following: Multi-Seller Conduits (MUFG-sponsored Asset-Backed Commercial Paper (“ABCP”) Conduits and Other ABCP Conduits) The MUFG Group administers several conduits under asset-backed financing programs under which the conduits purchase financial assets, primarily trade accounts receivable, from the MUFG Group’s customers by issuing short-term financing instruments, primarily commercial paper, to third-party investors. Under the asset-backed financing programs, the MUFG Group acts as an agent for the conduits, which enter into agreements with the MUFG Group’s customers where the customers transfer financial assets to the conduits in exchange for monetary consideration. The MUFG Group also underwrites commercial paper for the conduits that is secured by the assets held by them and provides program-wide liquidity and credit enhancement facilities to the conduits. The MUFG Group receives fees related to the services it provides to the conduits and the program-wide liquidity and credit enhancement. The MUFG Group considers itself to be the primary beneficiary of the multi-seller conduits because, as an agent and sponsor, the MUFG Group has the power to direct activities of the conduits that most significantly impact the conduits’ economic performance and also has the obligation to absorb losses of the conduits that could potentially be significant to the conduits through the program-wide liquidity and credit enhancement. Consequently, the MUFG Group consolidates the conduits. In addition to the entities described above, the MUFG Group participates as a provider of financing to several conduits that are administered by third parties. Most of these conduits are established under a multi-seller asset-backed financing program and the MUFG Group provides financing along with other financial institutions. With respect to these conduits, the MUFG Group is not considered as the primary beneficiary because the MUFG Group’s participation in the conduits is only to provide financing along with other third-party financial institutions and it does not have the power to direct the activities of the conduits. Consequently, the MUFG Group does not consolidate the conduits. Asset-Backed Conduits (MUFG-sponsored Asset-Backed Loan (“ABL”) Programs and Other Programs) The MUFG Group administers several conduits under asset-backed financing programs where the MUFG Group provides financing to fund the conduits’ purchases of financial assets, comprising primarily trade accounts receivable, from its customers. The MUFG Group acts as an agent and sponsor for the conduits, which enter into agreements with the MUFG Group’s customers where the customers transfer assets to the conduits in exchange for monetary consideration. In most cases, the MUFG Group is the sole provider of financing that is secured by the assets held by the conduits. The MUFG Group considers itself to be the primary beneficiary of the conduits because, as an agent and sponsor for the conduits, the MUFG Group has the power to direct activities of the conduits, such as selection of the assets to be purchased and condition for purchases, and debt collection from the original obligors, that most significantly impact the conduits’ economic performance, and also has the obligation to absorb losses of the conduits that could potentially be significant to the conduits through financing it provides. Consequently, the MUFG Group consolidates the conduits. In addition, the MUFG Group is involved with entities, which take in most cases the form of a trust, where originators of financial assets, which primarily comprise lease receivables, entrust the assets with trust banks and receive beneficial certificates of trusts in exchange. The originators then transfer the beneficiary certificates to the MUFG Group in exchange for cash. The originators of the financial assets entrusted continue to be involved in the assets as servicers. Because the originators are deemed to have the power to direct activities of the entities that most significantly impact the entities’ economic performance through their role as a servicer, the MUFG Group is not considered as the primary beneficiary of these entities. Consequently, the MUFG Group does not consolidate these entities. The MUFG Group also participates as a provider of financing to the ABL programs that are managed by third parties. The MUFG Group is not considered as the primary beneficiary of the entities used in these programs as the MUFG Group’s participation in the entities is only to provide financing along with other third parties and it does not have the power to direct the activities of the entities. Consequently, the MUFG Group does not consolidate the entities used in these programs. Investment Funds This category primarily comprises the following: Corporate Recovery Funds These entities are established by fund managers, which are unrelated to the MUFG Group, for the purpose of investing in debt or equity instruments issued by distressed companies. After investment, the fund managers work closely with the management of the entities and attempt to enhance corporate value by various means including corporate restructuring and reorganization. Their exit strategies include, among others, sales to others and initial public offerings. Typically, these entities take the form of a limited partnership which is entirely funded by general and limited partner interests. These partnerships are considered as VIEs unless the limited partners hold substantive kick-out rights or participating rights. The MUFG Group mostly serves as a limited partner in corporate recovery funds that are considered as VIEs, and does not have the power to direct the activities of these funds that most significantly impact the economic performance of these funds. Therefore, the MUFG Group does not consider itself to be the primary beneficiary of these funds and does not consolidate them. Private Equity Funds The MUFG Group is involved in venture capital funds that are established by either the MUFG Group’s entities or fund managers unrelated to the MUFG Group. These entities have specific investment objectives in connection with their acquisition of equity interests, such as providing financing and other support to start-up businesses, medium and small entities in a particular geographical area, and to companies with certain technology or companies in a high-growth industry. These entities typically take the form of a limited partnership and usually are entirely funded by general and limited partner interests. These partnerships are considered as VIEs unless the limited partners hold substantive kick-out rights or participating rights. The MUFG Group participates in these partnerships as a general partner or limited partner. The MUFG Group consolidates these funds, which are considered as VIEs, if the MUFG Group has the power to direct the activities of these funds that most significantly impact the economic performance of these funds, and also has the obligation to absorb losses of these funds that could potentially be significant to these funds or the right to receive benefits from these funds that could potentially be significant to these funds. Investment Trusts The MUFG Group invests in investment trusts that are professionally managed collective investment schemes which pool money from many investors and invest in, among others, equity and debt securities. Most of these funds take the form of a trust where there is a separation in investment decisions, which is assumed by an investment manager who has no investment in a trust, and ownership through beneficiary interests issued by a trust are owned by investors. Therefore, these investment trusts are considered as VIEs. The MUFG Group consolidates these funds if the MUFG Group has the power to direct the activities of these funds that most significantly impact the economic performance of these funds, and also has the obligation to absorb losses of these funds that could potentially be significant to these funds or the right to receive benefits from these funds that could potentially be significant to these funds. Buy-out Financing Vehicles The MUFG Group provides financing to buy-out vehicles. The buy-out vehicles are established by equity investments from, among others, private equity funds or the management of target companies for the purpose of purchasing the equity shares of target companies. Along with other financial institutions, the MUFG Group provides financing to the buy-out vehicles in the form of loans. While the buy-out vehicles’ equity is normally substantive in its amount and the rights and obligations associated with it, in some cases, the vehicles have equity that is insufficient to absorb expected variability primarily because the amount provided by equity investors is nominal in nature. These vehicles engage in non-investment activities, and are considered as VIEs. In most cases, the MUFG Group’s participation in these vehicles is only to provide financing to the vehicles, and the power to direct the activities that most significantly impact the economic performance of the vehicles is held by the management of target companies. As a result, the MUFG Group is not considered as the primary beneficiary of these vehicles and does not consolidate them. Other Investment Funds The MUFG Group’s investments in VIEs through MUFG Americas Holdings primarily consist of equity investments in low-income housing credit (“LIHC”) structures, designed to generate a return primarily through the realization of federal tax credits. MUFG Americas Holdings considers itself as the primary beneficiary of certain types of LIHC investments. LIHC Unguaranteed Syndicated Investment Funds MUFG Americas Holdings creates the investment funds, serves as the managing investor member, and sells limited investor member interests to third parties. MUFG Americas Holdings receives benefits through income from the structuring of these funds, servicing fees for managing the funds and, as an investor member, tax benefits and tax credits to reduce the MUFG Americas Holdings tax liability. MUFG Americas Holdings considers itself to be the primary beneficiary and consolidates them upon adoption of the current guidance because, as a sponsor and managing member of the funds, it has the power to direct activities that most significantly impact the funds’ economic performance and also has the obligation to absorb losses of the funds that could potentially be significant to the funds. LIHC Guaranteed Syndicated Investment Funds MUFG Americas Holdings also forms limited liability companies, which in turn invest in LIHC operating partnerships, to create LIHC guaranteed syndicated investment funds. Interests in these funds are sold to third parties who pay a premium for a guaranteed return. MUFG Americas Holdings earns structuring fees from the sale of these funds and asset management fees. MUFG Americas Holdings serves as the funds’ sponsor and non-member asset manager, and also guarantees a minimum rate of return throughout the investment term, therefore, it directs the activities that most significantly impact the funds’ economic performance and also has an obligation to absorb losses pertaining to its minimum rate of return guarantee to investors. Therefore, the MUFG Group is considered as the primary beneficiary of these funds and consolidates them. Special Purpose Entities Created for Structured Financing This category primarily comprises the following: Leasing Transaction Vehicles These entities are established to raise funds to purchase or build equipment and machinery including, among others, commercial vessels, passenger and cargo aircraft, and production equipment for the purpose of leasing them to lessees who use the equipment and machinery as part of their business operations. These entities typically take the form of a limited partnership or a special purpose company where they fund their purchases of equipment and machinery via senior and subordinate financing. When entities take the form of a limited partnership, these entities are considered as VIEs unless limited partners hold substantive kick-out rights or participating rights. The entities considered as VIEs are typically funded only by senior financing or there is a guarantee provided to the senior financing by parties unrelated to those providing the senior financing. In most cases, the MUFG Group participates in the senior financing and does not participate in the subordinate financing or provide guarantees. Generally, because the MUFG Group’s participation in these entities is only to provide financing, it does not have the power to direct the activities of the entities that most significantly impact the economic performance of the entities. Therefore, the MUFG Group does not consider itself to be the primary beneficiary of these entities and does not consolidate them, except for limited circumstances where the MUFG Group is directly involved with the structuring of the transaction and has the power to direct the activities of the entities that most significantly impact the economic performance of the entities. Project Financing Vehicles These entities are established to raise funds in connection with, among others, production of natural resources, construction and development of urban infrastructure (including power plants and grids, highways and ports), and the development of real estate properties or complexes. These projects typically involve special purpose companies which issue senior and subordinate financing to raise funds in connection with the various projects. The subordinate financing is usually provided by parties that will ultimately make use of the assets constructed or developed. By contrast, the senior financing is typically provided by financial institutions, including the MUFG Group. Because the MUFG Group’s participation in these entities is only to provide financing, it does not have the power to direct the activities that most significantly impact the economic performance of these entities. Therefore, the MUFG Group is not considered as the primary beneficiary of these entities and does not consolidate them. Sale-and-Leaseback Vehicles The MUFG Group is involved with vehicles that acquire assets, primarily real estate, from the MUFG Group’s customers and other unrelated parties where the sellers of the assets continue to use the assets through leaseback agreements. These vehicles typically take the form of a limited partnership, and are considered as VIEs unless the limited partners hold substantive kick-out rights or participating rights. The subordinated financing of these vehicles considered as VIEs is usually provided by the sellers of the assets, with the MUFG Group providing senior financing for the vehicles. Because the MUFG Group’s participation in these vehicles is only to provide senior financing, it does not have the power to direct the activities that most significantly impact the economic performance of these vehicles. Therefore, the MUFG Group is not considered as the primary beneficiary and does not consolidate them. Securitization of Client Real Estate Properties These entities are established for the purpose of securitizing real estate properties held by the MUFG Group’s customers. In most cases, these entities take the form of a limited partnership or a special purpose company. When entities take the form of a limited partnership, these entities are considered as VIEs unless the limited partners hold substantive kick-out rights or participating rights. The entities considered as VIEs are typically funded by senior and subordinated financing where the original owners of the real estate properties provide the subordinated financing, primarily in the form of partnership interests or subordinated notes, and financial institutions, including the MUFG Group, provide senior financing in the form of senior loans. Because the MUFG Group’s participation in these vehicles is only to provide a portion of senior financing, it does not have the power to direct the activities that most significantly impact the economic performance of these entities. Therefore, the MUFG Group is not considered as the primary beneficiary and does not consolidate these entities. Repackaged Instruments This category primarily comprises the following: Investments in Financially-Engineered Products The MUFG Group is involved in special purpose entities that have been established to issue financial products through the engineering and repackaging of existing financial instruments such as collateralized debt obligations ( “ CDOs ” ). These entities are considered as VIEs because the holders of the equity investment at risk do not have the power to direct the activities that most significantly impact their economic performance. These entities are generally arranged and managed by parties that are not related to the MUFG Group. The MUFG Group’s involvement with the entities arranged and managed by third parties is for investment purposes. In these cases, the MUFG Group participates as one of many other investors and the MUFG Group typically holds investments in senior tranches or tranches with high credit ratings. Therefore, the MUFG Group does not have the power to direct activities of the entities that most significantly impact the entities’ economic performance, and thus is not considered as the primary beneficiary of these entities and does not consolidate these entities. In certain instances, special purpose entities have been established and are managed by the MUFG Group. The MUFG Group’s involvement includes establishing and arranging the transaction and underwriting securities issued by the entities to general investors. For these entities, the MUFG Group has the power to direct activities that most significantly impact the economic performance and it has the obligation to absorb losses or receive benefits that could potentially be significant to the entities. As such, the MUFG Group considers itself as the primary beneficiary of these entities and consolidates them. Investments in Securitized Financial Instruments The MUFG Group holds investments in special purpose entities that issue securitized financial products. The assets held by the entities include credit card receivables and residential mortgage loans. These entities are established and managed by parties that are unrelated to the MUFG Group and the MUFG Group’s involvement with these entities is for its own investment purposes. In all cases, the MUFG Group participates as one of many other investors and the MUFG Group does not have the power to direct activities of the entities that most significantly impact the entities’ economic performance. Therefore, the MUFG Group is not considered as the primary beneficiary of these entities and does not consolidate them. Securitization of the MUFG Group’s Assets This category primarily comprises the following: Securitization for issuing interests or financing The MUFG Group establishes entities to securitize its own financial assets that include, among others, corporate and retail loans and lease receivables. The entities used for securitization, which typically take the form of a special purpose company or a trust, are established by the MUFG Group and, in most cases, issue senior and subordinate interests or financing. After securitization, the MUFG Group typically continues to service securitized assets as a servicer. The MUFG Group may also retain subordinate interests or financing or other interests. The MUFG Group is considered as the primary beneficiary and consolidates the entities used for securitization since it has the obligation to absorb losses through subordinate interests, and also has the power for determining and implementing policies as servicer that give it the ability to manage the entities’ assets that become delinquent or are in default in order to improve the economic performance of the entities. Eligible beneficiary interests in housing loan trusts The MUFG Group establishes trusts, which acquire the MUFG Group’s housing loans and in turn issue beneficiary interests to the MUFG Group, to pledge these beneficiary interests as collateral for borrowings from the Bank of Japan, as a result of the decision by the Bank of Japan on June 30, 2016 to accept these beneficial interests as collateral in the same way as it does for Japanese national government bonds. The MUFG Group is considered as the primary beneficiary and consolidates the trusts since it has the obligation to absorb losses through beneficiary interests, and also has the power for determining and implementing policies as servicer that give it the ability to manage housing loans owned by the trusts that become delinquent or are in default in order to improve the economic performance of the trusts. Trust Arrangements The MUFG Group offers, primarily through Mitsubishi UFJ Trust and Banking, a variety of trust products and services including securities investment trusts, pension trusts and trusts used as securitization vehicles. In a typical trust arrangement, however, the MUFG Group manages and administers assets on behalf of the customers in an agency, fiduciary and trust capacity and does not assume risks associated with the entrusted assets. The trusts are generally considered as VIEs because the trust beneficiaries, who provide all of the equity at risk, usually do not have power to direct the activities that most significantly impact its economic performance in the arrangements. The MUFG Group, however, is not considered as the primary beneficiary, mainly, except for the case mentioned below, because it merely receives fees for compensation for its services on terms that are customary for these activities and the fees are insignificant relative to the total amount of the trusts’ economic performance and variability. Therefore, the MUFG Group does not consolidate these entities. With respect to the jointly operated designated money in trusts, Mitsubishi UFJ Trust and Banking pools money from investors and determines how best to invest it. In addition, certain investors, such as money reserve funds and investment funds, place excess funds in the jointly operated designated money trusts. Mitsubishi UFJ Trust and Banking typically invests in high-quality financial assets, including government bonds, corporate bonds and corporate loans including loans to Mitsubishi UFJ Trust and Banking and receives fees as compensation for services. In this role as a sponsor of these trusts’ Mitsubishi UFJ Trust and Banking provides guarantees under which it is required to compensate a loss on the stated principal of the trust beneficial interests. Mitsubishi UFJ Trust and Banking is considered as the primary beneficiary of these trusts’ because it is exposed to a potentially significant amount of losses and also has the power to direct activities of these trusts’ that most significantly impact their economic performance. Upon consolidation of the trusts, the certificates issued to the investors are accounted for as deposit liabilities as the products are structured and marketed to customers similar to Mitsubishi UFJ Trust and Banking’s term deposit products. Mitsubishi UFJ Trust and Banking considers the likelihood of incurring losses on the stated principal guarantee to be highly remote. In the trusts’ operational history that extends over decades, the stated principal guarantee has never been called upon. The variability in fair value of the net assets of the trusts has been primarily affected by the fluctuations in interest rates, and the majority of such variability has been absorbed by investors or trust beneficiaries. Other This category primarily comprises the following: Financing Vehicles of the MUFG Group’s Customers The MUFG Group is involved with several entities that are established by the MUFG Group’s customers. These entities borrow funds from financial institutions and extend loans to their group entities. These entities effectively work as fund-raising vehicles for their respective group entities and enable the groups to achieve efficient financing by integrating their financing activities into a single entity. In all cases, the MUFG Group is not considered as the primary beneficiary because the MUFG Group’s participation in these entities is only to provide financing, and the customers effectively hold the power to direct activities of these entities that most significantly impact the economic performance of the entities. Consequently, the MUFG Group does not consolidate these entities. Funding Vehicles The MUFG Group has established several wholly-owned off-shore vehicles which issue securities, typically preferred stock that is fully guaranteed by the MUFG Group, to investors unrelated to the MUFG Group to fund purchases of debt instruments issued by the MUFG Group. These entities are considered as VIEs because the MUFG Group’s investment in the vehicles’ equity is not considered at risk and substa

Contingent Liabilities

Contingent Liabilities	12 Months Ended
	Mar. 31, 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 ¥24,943 million and ¥21,120 million as of March 31, 2021 and 2022, respectively. Provision (reversal) related to the allowance is included in Other non-interest expenses in the accompanying consolidated statements of operations. For the fiscal years ended March 31, 2020, 2021 and 2022, there was a negative impact of ¥7,800 million, nil and ¥23,332 million, respectively, on Equity in earnings of equity method investees—net in the accompanying consolidated statements of operations. Litigation

Fees and Commissions Income

Fees and Commissions Income	12 Months Ended
	Mar. 31, 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 fiscal years ended March 31, 2020, 2021 and 2022 were as follows: 2020 2021 2022 (in millions) Fees and commissions on deposits ¥ 53,684 ¥ 50,131 ¥ 51,032 Fees and commissions on remittances and transfers 169,407 165,288 157,236 Fees and commissions on foreign trading business 66,025 79,353 56,344 Fees and commissions on credit card business 238,112 199,625 207,080 Fees and commissions on security-related services 221,494 244,017 264,530 Fees and commissions on administration and management services for investment funds 184,559 235,497 286,549 Trust fees 119,919 125,658 133,322 Guarantee fees (1) 46,322 43,889 45,849 Insurance commissions 44,415 42,117 42,353 Fees and commissions on real estate business 49,764 48,110 65,611 Other fees and commissions (2) 308,351 293,598 348,957 Total ¥ 1,502,052 ¥ 1,527,283 ¥ 1,658,863 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 29. The business segment information is derived from the internal management reporting system used by management to measure the performance of the MUFG Group’s business segments. In addition, the business segment information is primarily based on the financial information prepared in accordance with Japanese GAAP as adjusted in accordance with internal management accounting rules and practices. Further, the format and information as disclosed in Note 29 are not consistent with the accompanying 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.

Trading Account Profits and Los

Trading Account Profits and Losses	12 Months Ended
	Mar. 31, 2022
Trading Account Profits And Losses [Abstract]
Trading Account Profits and Losses	TRADING ACCOUNT PROFITS AND LOSSES The MUFG Group performs trading activities through market-making, sales and arbitrage, while maintaining risk levels within appropriate limits in accordance with its risk management policy. The MUFG Group has trading account securities and trading derivative assets and liabilities for this purpose. In addition, the trading account securities include foreign currency-denominated debt securities such as foreign government or official institution bonds, corporate bonds and mortgage-backed securities, which are mainly comprised of securities measured at fair value under the fair value option. Net trading gains (losses) for the fiscal years ended March 31, 2020, 2021 and 2022 were comprised of the following: 2020 2021 2022 (in millions) Interest rate and other derivative contracts ¥ (159,045) ¥ (429,586) ¥ (102,122) Trading account securities, excluding derivatives 924,418 19,218 (722,298) Trading account profits (losses)—net 765,373 (410,368) (824,420) Foreign exchange derivative contracts (1) (434,052) (79,559) (44,693) Net trading gains (losses) ¥ 331,321 ¥ (489,927) ¥ (869,113) Note: (1) Losses on foreign exchange derivative contracts are included in Foreign exchange gains (losses)—net in the accompanying consolidated statements of operations. Foreign exchange gains (losses)—net in the accompanying consolidated statements of operations are also comprised of foreign exchange gains (losses) other than derivative contracts and foreign exchange gains (losses) related to the fair value option.

Business Segments

Business Segments	12 Months Ended
	Mar. 31, 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 Japanese GAAP as adjusted in accordance with internal management accounting rules and practices. Accordingly, the format and information are not consistent with the accompanying 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. See Note 30 for financial information relating to the MUFG Group’s operations by geographic area. The geographic financial information is consistent with the basis of the accompanying consolidated financial statements. 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 company 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 individual) 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 and Krungsri and Bank Danamon. This business group offers a comprehensive array of financial products and services such as loans, deposits, fund transfers, investments and asset management services for local retail, small and medium-sized enterprise, and corporate customers across the Asia-Pacific region. Asset Management & Investor Services Business Group —Covers the asset management and asset administration businesses of Mitsubishi UFJ Trust and Banking, MUFG Bank and First Sentier Investors. By integrating the trust banking expertise of Mitsubishi UFJ Trust and Banking and the global strengths of MUFG Bank, the business group offers a full range of asset management and administration services for corporations and pension funds, including pension fund management and administration, advice on pension structures, and payments to beneficiaries, and also 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 non-Japanese large corporate and financial institution customers 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 has reorganized its business groups (previously consisting of Retail & Commercial Banking Business Group, Japanese Corporate & Investment Banking Business Group, Global Corporate & Investment Banking Business Group, Global Commercial Banking Business Group, Asset Management & Investor Services Business Group, Global Markets Business Group and Other) under its three-year medium-term business plan commencing on April 1, 2021, in light of changes in the business environment, including the digital shift in society. A new Digital Service Business Group was established on April 1, 2021 under the medium-term business plan mainly by separating the digital-based businesses that previously belonged to the Retail & Commercial Banking Business Group in an effort to better integrate the expertise and capabilities of its subsidiaries to respond to the needs of its customers more effectively and efficiently, and the MUFG Group changed its reporting segments to the current segmentation based on the reorganized business groups. The MUFG Group has changed the method of allocation of net revenue and operating expenses among reporting segments mainly in connection with the establishment of the Digital Service Business Group. The MUFG Group made modifications to its internal management accounting rules and allocate fixed assets to each business segment from March 2022. The MUFG Group made modifications to its internal management accounting rules and practices, effective April 1, 2021, including adjustments relating to the interest rate on core deposits in the Retail & Commercial Banking Business Group under the medium-term business plan. The adjustments resulted in a decrease in net revenue in the Retail & Commercial Banking Business Group and a corresponding, offsetting increase of the same amount in net revenue in Other. These changes had the following impact for the fiscal years ended March 31, 2020 and 2021: • increasing the operating profits of the Global Corporate & Investment Banking Business Group, Other and the Global Commercial Banking Business Group by ¥9.0 billion, ¥4.2 billion, and ¥0.2 billion, respectively for the fiscal year ended March 31, 2020, • reducing the operating profits of the Retail & Commercial Banking Business Group, the Japanese Corporate & Investment Banking Business Group, the Global Markets Business Group and the Asset Management & Investor Services Business Group by ¥217.0 billion, ¥3.5 billion, ¥2.9 billion and ¥2.1 billion, respectively for the fiscal year ended March 31, 2020, • increasing the operating profits of Other, the Global Corporate & Investment Banking Business Group and the Global Commercial Banking Business Group by ¥15.6 billion, ¥5.1 billion and ¥2.0 billion, respectively for the fiscal year ended March 31, 2021, and • reducing the operating profits of the Retail & Commercial Banking Business Group, the Asset Management & Investor Services Business Group, the Global Markets Business Group and the Japanese Corporate & Investment Banking Business Group by ¥191.8 billion, ¥2.8 billion, ¥0.7 billion and ¥0.5 billion, respectively for the fiscal year ended March 31, 2021. Prior period business segment information has been restated to enable comparison between the relevant amounts for the fiscal years ended March 31, 2020, 2021 and 2022. Customer Business Global Other Total Digital Retail & Japanese Global Asset Global Total (in billions) Fiscal year ended March 31, 2020: Net revenue: ¥ 789.6 ¥ 604.9 ¥ 575.9 ¥ 795.6 ¥ 243.1 ¥ 409.3 ¥ 3,418.4 ¥ 535.7 ¥ 19.1 ¥ 3,973.2 BK and TB (1) : 282.7 422.7 444.8 (0.2) 94.8 294.3 1,539.1 311.8 21.7 1,872.6 Net interest income 253.6 189.8 188.6 0.6 2.5 128.6 763.7 125.4 35.8 924.9 Net fees 24.6 209.8 202.1 — 92.3 148.1 676.9 (16.1) (55.4) 605.4 Other 4.5 23.1 54.1 (0.8) — 17.6 98.5 202.5 41.3 342.3 Other than BK and TB 506.9 182.2 131.1 795.8 148.3 115.0 1,879.3 223.9 (2.6) 2,100.6 Operating expenses 578.4 532.3 331.1 564.3 173.9 258.9 2,438.9 235.8 124.4 2,799.1 Operating profit (loss) ¥ 211.2 ¥ 72.6 ¥ 244.8 ¥ 231.3 ¥ 69.2 ¥ 150.4 ¥ 979.5 ¥ 299.9 ¥ (105.3) ¥ 1,174.1 Fiscal year ended March 31, 2021: Net revenue: ¥ 731.1 ¥ 567.4 ¥ 563.1 ¥ 783.5 ¥ 293.5 ¥ 431.5 ¥ 3,370.1 ¥ 640.3 ¥ 7.5 ¥ 4,017.9 BK and TB (1) : 258.4 373.8 451.5 1.0 99.5 274.4 1,458.6 386.3 32.9 1,877.8 Net interest income 223.6 165.8 187.0 1.6 5.5 138.3 721.8 212.3 37.3 971.4 Net fees 32.1 188.9 216.3 — 94.0 150.2 681.5 (4.5) (70.7) 606.3 Other 2.7 19.1 48.2 (0.6) — (14.1) 55.3 178.5 66.3 300.1 Other than BK and TB 472.7 193.6 111.6 782.5 194.0 157.1 1,911.5 254.0 (25.4) 2,140.1 Operating expenses 559.6 500.2 323.0 507.3 212.9 269.9 2,372.9 240.2 157.8 2,770.9 Operating profit (loss) ¥ 171.5 ¥ 67.2 ¥ 240.1 ¥ 276.2 ¥ 80.6 ¥ 161.6 ¥ 997.2 ¥ 400.1 ¥ (150.3) ¥ 1,247.0 Fiscal year ended March 31, 2022: Net revenue: ¥ 727.0 ¥ 600.6 ¥ 620.6 ¥ 781.4 ¥ 348.9 ¥ 527.2 ¥ 3,605.7 ¥ 427.0 ¥ 27.2 ¥ 4,059.9 BK and TB (1) : 260.4 388.6 495.2 1.9 106.4 361.7 1,614.2 203.4 53.7 1,871.3 Net interest income 219.0 166.5 230.6 2.1 9.3 170.5 798.0 219.9 134.7 1,152.6 Net fees 38.4 201.3 211.6 — 97.1 189.0 737.4 (10.7) (70.1) 656.6 Other 3.0 20.8 53.0 (0.2) — 2.2 78.8 (5.8) (10.9) 62.1 Other than BK and TB 466.6 212.0 125.4 779.5 242.5 165.5 1,991.5 223.6 (26.5) 2,188.6 Operating expenses 554.6 495.9 319.2 538.0 241.3 288.9 2,437.9 250.0 139.6 2,827.5 Operating profit (loss) ¥ 172.4 ¥ 104.7 ¥ 301.4 ¥ 243.4 ¥ 107.6 ¥ 238.3 ¥ 1,167.8 ¥ 177.0 ¥ (112.4) ¥ 1,232.4 Fixed assets (2) ¥ 140.6 ¥ 191.7 ¥ 155.8 ¥ 1.0 ¥ 13.3 ¥ 133.0 ¥ 635.4 ¥ 108.4 ¥ 550.3 ¥ 1,294.1 Notes: (1) “BK and TB” is a sum of MUFG Bank on a stand-alone basis and Mitsubishi UFJ Trust and Banking on a stand-alone basis. (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 MUFG Bank (on a stand-alone basis) and Mitsubishi UFJ Trust and Banking (on a stand-alone basis). Fixed assets of MUFG, other consolidated subsidiaries and Japanese GAAP consolidation adjustment amounting to ¥1,286.1 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. 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 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 consolidated statements of operations. A reconciliation of operating profit and fixed assets under the internal management reporting system for the fiscal years ended March 31, 2020, 2021 and 2022 above to income before income tax expense shown in the accompanying consolidated statements of operations and the total amount of premises and equipment-net, intangible assets-net and goodwill are as follows: 2020 2021 2022 (in billions) Operating profit: ¥ 1,174 ¥ 1,247 ¥ 1,232 Provision for credit losses (322) (484) (278) Trading account profits (losses)—net 920 (678) (1,174) Equity investment securities gains (losses)—net (618) 1,480 (109) Debt investment securities gains (losses)—net (403) (129) 139 Foreign exchange gains (losses)—net (145) 9 (9) Equity in earnings of equity method investees—net 283 356 437 Impairment of goodwill (384) (148) — Impairment of intangible assets (4) (22) (33) Reversal of (provision for) off-balance sheet credit instruments 62 57 (46) Impairment of assets held for sale — — (134) Other—net (130) (80) (84) Income (loss) before income tax expense (benefit) ¥ 433 ¥ 1,608 ¥ (59) Fixed assets: ¥ — ¥ — ¥ 1,294 U.S. GAAP adjustments and other — — 974 Premises and equipment-net, Intangible assets-net and Goodwill ¥ — ¥ — ¥ 2,268

Foreign Activities

Foreign Activities	12 Months Ended
	Mar. 31, 2022
Segments, Geographical Areas [Abstract]
Foreign Activities	FOREIGN ACTIVITIES Foreign operations include the business conducted by overseas offices, as well as international business conducted from domestic offices, principally several international banking-related divisions of MUFG Bank’s and Mitsubishi UFJ Trust and Banking’s head office in Tokyo, and involve various transactions with debtors and customers residing outside Japan. Close integration of the MUFG Group’s foreign and domestic activities makes precise estimates of the amounts of assets, liabilities, income and expenses attributable to foreign operations difficult and necessarily subjective. Assets, income and expenses attributable to foreign operations are allocated to geographical areas based on the domicile of the debtors and customers. Generally, interest rates with respect to funds borrowed and loaned between domestic and foreign operations are based on prevailing money market rates appropriate for the transactions. In general, the MUFG Group has allocated all direct expenses and a proportionate share of general and administrative expenses to income derived from foreign loans and other transactions by the MUFG Group’s foreign operations. The following table sets forth estimated total assets at March 31, 2020, 2021 and 2022, and estimated total revenue, total expense, income (loss) before income tax expense (benefit) and net income (loss) attributable to Mitsubishi UFJ Financial Group for the respective fiscal years then ended: Domestic Foreign Total Japan United States of America Europe Asia/ Oceania excluding Japan Other areas (1) (in millions) Fiscal year ended March 31, 2020: Total revenue (2) ¥ 1,596,794 ¥ 2,223,984 ¥ 89,412 ¥ 1,326,426 ¥ 566,222 ¥ 5,802,838 Total expense (3) 2,565,895 1,051,164 218,623 1,174,200 359,736 5,369,618 Income (loss) before income tax expense (benefit) (969,101) 1,172,820 (129,211) 152,226 206,486 433,220 Net income (loss) attributable to Mitsubishi UFJ Financial Group (1,001,477) 1,113,913 (140,372) 142,568 191,323 305,955 Total assets at end of fiscal year 207,532,337 60,587,867 19,099,410 30,845,864 13,687,805 331,753,283 Fiscal year ended March 31, 2021: Total revenue (2) ¥ 3,348,733 ¥ 741,137 ¥ 356,112 ¥ 1,134,233 ¥ 329,568 ¥ 5,909,783 Total expense (3) 2,316,323 713,441 263,753 889,494 118,430 4,301,441 Income before income tax expense 1,032,410 27,696 92,359 244,739 211,138 1,608,342 Net income (loss) attributable to Mitsubishi UFJ Financial Group 627,138 (231,116) 74,230 366,880 280,166 1,117,298 Total assets at end of fiscal year 240,603,939 49,478,851 21,126,639 31,368,443 11,246,753 353,824,625 Fiscal year ended March 31, 2022: Total revenue (2) ¥ 2,160,509 ¥ 500,590 ¥ 67,687 ¥ 975,340 ¥ 221,601 ¥ 3,925,727 Total expense (3) 2,198,650 666,564 311,639 726,042 81,559 3,984,454 Income (loss) before income tax expense (benefit) (38,141) (165,974) (243,952) 249,298 140,042 (58,727) Net income (loss) attributable to Mitsubishi UFJ Financial Group (7,380) (498,205) (344,044) 506,621 259,688 (83,320) Total assets at end of fiscal year (4) 246,637,054 54,576,602 22,319,350 31,909,321 12,207,691 367,650,018 Notes: (1) Other areas primarily include Canada, Latin America, the Caribbean and the Middle East. (2) Total revenue is comprised of Interest income and Non-interest income. (3) Total expense is comprised of Interest expense, Provision for credit losses and Non-interest expense. (4) Total assets at the fiscal year ended March 31, 2022 in this table includes those relating to Financial assets and liabilities of transferred business of MUFG Union Bank. See Note 2 for more information. The following is an analysis of certain asset and liability accounts related to foreign activities at March 31, 2021 and 2022: 2021 2022 (in millions) Cash and due from banks ¥ 1,090,501 ¥ 1,050,661 Interest-earning deposits in other banks 12,377,887 12,459,897 Total ¥ 13,468,388 ¥ 13,510,558 Trading account assets ¥ 28,525,243 ¥ 26,849,102 Investment securities ¥ 8,694,138 ¥ 7,157,322 Loans—net of unearned income, unamortized premiums and deferred loan fees ¥ 47,333,878 ¥ 45,338,581 Deposits ¥ 55,145,437 ¥ 46,932,643 Funds borrowed: Call money, funds purchased ¥ 323,066 ¥ 306,053 Payables under repurchase agreements 10,974,238 10,769,853 Payables under securities lending transactions 130,380 144,854 Other short-term borrowings 3,474,821 3,940,997 Long-term debt 2,421,267 1,596,146 Total ¥ 17,323,772 ¥ 16,757,903 Trading account liabilities ¥ 5,575,956 ¥ 5,919,017

Fair Value

Fair Value	12 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value	FAIR VALUE Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The guidance on fair value measurements also specifies a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The fair value hierarchy gives the highest priority to quoted prices in active markets and the lowest priority to unobservable inputs, for example, the reporting entity’s own data. Based on the observability of the inputs used in the valuation techniques, the following three-level hierarchy is specified by the guidance: • Level 1—Unadjusted quoted prices for identical instruments in active markets. • Level 2—Observable inputs other than Level 1 prices for substantially the full term of the instruments, such as quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; other inputs that are observable; or market-corroborated inputs. • Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the instruments. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The tables in this note except for Estimated Fair Value of Financial Instruments include the portion of the assets and liabilities held for sale. The MUFG Group has an established and documented process for determining fair values in accordance with the guidance. When available, quoted prices are used to determine fair value. If quoted prices are not available, fair value is based upon valuation techniques that use observable or unobservable inputs. The fair values of liabilities are determined by discounting future cash flows at a rate which incorporates the MUFG Group’s own creditworthiness. In addition, valuation adjustments may be made to ensure the financial instruments are recorded at fair value. These adjustments include, but are not limited to, amounts that reflect counterparty credit quality, funding cost, liquidity risk and model risk. The following section describes the valuation techniques used by the MUFG Group to measure fair values of certain financial instruments. The discussion includes the general classification of such financial instruments in accordance with the fair value hierarchy, a brief explanation of the valuation techniques, the significant inputs to those valuation techniques, and any additional significant assumptions. Trading Account Assets and Liabilities—Trading Account Securities When quoted prices are available in an active market, the MUFG Group uses quoted prices to measure the fair values of securities and such securities are classified in Level 1 of the fair value hierarchy. Examples of Level 1 securities include certain Japanese and foreign government bonds, and marketable equity securities. When quoted prices are available but the securities are not traded in active markets, such securities are classified in Level 2 of the fair value hierarchy. These securities include certain Japanese government agency bonds, Japanese prefectural and municipal bonds, foreign government and official institution bonds, corporate bonds, residential mortgage-backed securities and equity securities. As for quoted prices provided by third-party vendors, independent price verification is performed by the MUFG group to determine the quality and reliability of the data for fair value measurement purposes. As part of its independent price verification procedures, the MUFG group obtains a sufficient understanding of the vendors’ pricing sources and valuation processes. Further, the MUFG group performs internal price verification procedures to ensure that the quoted prices provided from the third-party vendors are reasonable. Such verification procedures include comparison of pricing sources and analysis of variances beyond certain thresholds. When quoted prices are not available, the MUFG Group estimates fair values by using an internal model, quoted prices of securities with similar characteristics or non-binding prices obtained from independent third parties. Such securities include certain commercial paper, corporate bonds, asset-backed securities and residential mortgage-backed securities. For commercial paper, the MUFG Group estimates fair value using discounted cash flows. The cash flows are estimated in accordance with the terms of contracts and discounted using a discount rate based on the yield curve estimated from market interest rates appropriate to the securities. Commercial paper is generally classified in Level 2 of the fair value hierarchy. For corporate bonds, the MUFG Group estimates fair value using discounted cash flows. The cash flows are estimated in accordance with the terms of contracts and discounted using discount rates applicable to the maturity of the bonds, which are adjusted to reflect credit risk of issuers. Credit risk of issuers is reflected in the future cash flows being discounted by the interest rate applicable to the maturity of the bonds. Corporate bonds are classified in either Level 2 or Level 3 of the fair value hierarchy, depending primarily on the significance of the adjustments to the unobservable input of credit worthiness. For residential mortgage-backed securities, the MUFG Group estimates fair value using non-binding prices obtained from independent third parties. Residential mortgage-backed securities are classified as level 2 unless otherwise significant unobservable input is used for the valuation. When there is less liquidity for securities or significant inputs used in the fair value measurements are unobservable, such securities are classified in Level 3 of the fair value hierarchy. Examples of such Level 3 securities include CLOs backed by general corporate loans, which are classified in asset-backed securities. The fair value of CLOs is measured by weighing the estimated fair value amounts from the internal model and the non-binding quotes from the independent broker-dealers. The weight of the quotes from independent broker-dealers is determined based on the result of inquiries with the broker-dealers to understand their basis of fair value calculation with consideration given to transaction volume. Key inputs to the internal model include projected cash flows through an analysis of underlying loans, probability of default which incorporates market indices such as LCDX (which is an index of loan credit default swaps), prepayment rates and discount rates reflecting liquidity premiums based on historical market data. Trading Account Assets and Liabilities—Derivatives Exchange-traded derivatives valued using quoted prices are classified in Level 1 of the fair value hierarchy. Examples of Level 1 derivatives include stock futures index and interest rate futures. However, the majority of the derivative contracts entered into by the MUFG Group are traded over-the-counter and valued using valuation techniques as there are no quoted prices for such derivatives. The valuation techniques and inputs vary depending on the types and contractual terms of the derivatives. The principal valuation techniques used to value derivatives include discounted cash flows, the Black-Scholes model and the Hull-White model. The key inputs include interest rate yield curve, foreign currency exchange rate, volatility, credit quality of the counterparty or the MUFG Group and spot price of the underlying. These models are commonly accepted in the financial industry and key inputs to the models are generally readily observable in an active market. Derivatives valued using such valuation techniques and inputs are generally classified in Level 2 of the fair value hierarchy. Examples of such Level 2 derivatives include plain-vanilla interest rate swaps, foreign currency forward contracts and currency option contracts. Derivatives that are valued using valuation techniques with significant unobservable inputs are classified in Level 3 of the fair value hierarchy. Examples of Level 3 derivatives include long-term interest rate or currency swaps and certain credit derivatives, where significant inputs such as volatility and correlation of such inputs are unobservable. Investment Securities Investment securities include Available-for-sale debt and equity securities, whose fair values are measured using the same valuation techniques as the trading account securities described above. Investment securities also include investments in nonmarketable equity securities which are subject to specialized industry accounting principles. The valuation of such nonmarketable equity securities involves significant management judgment due to the absence of quoted prices, lack of liquidity and the long term nature of these investments. Further, there may be restriction on transfers of nonmarketable equity securities. The MUFG Group values such securities initially at transaction price and subsequently adjusts such valuations, considering evidence such as current sales transactions of similar securities, initial public offerings, recent equity issuances and change in financial condition of the investee company. Nonmarketable equity securities are included in Level 3 of the fair value hierarchy. Other Assets Other assets measured at fair value mainly consist of securities received as collateral that may be sold or repledged under securities lending transactions, money in trust for segregating cash deposited by customers on security transactions and derivatives designated as hedging instruments. The securities received as collateral under lending transactions mainly consist of certain Japanese and foreign government bonds which are valued using the valuation techniques previously described in the section entitled “Trading Accounts Assets and Liabilities—Trading Account Securities” above. Money in trust for segregating cash deposited by customers on security transactions mainly consists of certain Japanese government bonds which are valued using the valuation techniques described in the “Trading Account Assets and Liabilities—Trading Account Securities” above and is included in Level 1 or Level 2 of the fair value hierarchy depending on the component assets. The fair values of derivatives designated as hedging instruments are measured using the valuation techniques described in the “Trading Account Assets and Liabilities—Derivatives” above. Obligations to Return Securities Received as Collateral Obligations to return securities received as collateral under securities lending transactions included in Other liabilities are measured at the fair values of the securities received as collateral. The securities received as collateral consist primarily of certain Japanese and foreign government bonds, whose fair values are measured using the valuation techniques described in the “Trading Account Assets and Liabilities—Trading Account Securities” above. Other Short-term Borrowings and Long-term Debt Certain short-term borrowings and long-term debt are measured at fair value due to the election of the fair value option. The fair value of these instruments are measured principally based on the discounted cash flows. Where the inputs into the valuation techniques are mainly based on observable inputs, these instruments are classified in Level 2 of the fair value hierarchy. Where significant inputs are unobservable, they are classified in Level 3 of the fair value hierarchy. Market Valuation Adjustments Counterparty credit risk adjustments are made to certain financial assets such as over-the-counter derivatives to factor in counterparty credit exposure. As not all counterparties have the same credit risk, it is necessary in calculating credit risk adjustments, to take into account probability of a default event occurring for each counterparty, which is primarily derived from observed or estimated spreads on credit default swaps. In addition, the counterparty credit risk adjustment takes into account the effect of credit risk mitigation such as pledged collateral and the legal right of offset with the counterparty. Funding valuation adjustment (“FVA”) represents the adjustment to reflect the impact of uncollateralized funding. The FVA is calculated using the MUFG’s market funding spread and the funding exposure of any uncollateralized component of the over-the-counter derivative instrument. The MUFG Group’s FVA framework incorporates key inputs, such as the expected future funding requirements arising from the MUFG Group’s positions with each counterparty and collateral arrangements, and the estimated market funding cost in the principal market, which considers the MUFG Group’s credit risk. Liquidity adjustments are applied mainly to the instruments classified in Level 3 of the fair value hierarchy when recent observable prices of such instruments are not available or such instruments are traded in inactive or less active markets. The liquidity adjustments are based on the facts and circumstances of the markets including the availability of external quotes and the time since the latest available quote. Model valuation adjustments such as unobservable parameter valuation adjustments may be provided when the fair values of instruments are determined based on internally developed valuation techniques. Examples of such adjustments include adjustments to the model price of certain derivatives where parameters such as correlation are unobservable. Unobservable parameter valuation adjustments are applied to mitigate the uncertainty inherent in the resulting valuation estimate. Investments in Certain Entities That Calculate Net Asset Value per Share The MUFG Group has interests in investment funds mainly private equity funds, and real estate funds that are measured at fair value on a recurring or nonrecurring basis. Private equity funds have specific investment objectives in connection with their acquisition of equity interests, such as providing financing and other support to start-up businesses, medium and small entities in a particular geographical area, and to companies with certain technology or companies in a high-growth industry. Generally, these investments cannot be redeemed with the funds, and the return of invested capital and its gains are derived from distributions received upon the liquidation of the underlying assets of the fund, the timing of which is uncertain. Real estate funds invest globally and primarily in real estate companies, debt recapitalizations and direct property. These investments are generally not redeemable with the funds. Distributions from each fund will be received as the underlying investments of the funds are liquidated, the timing of which is uncertain. 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, 2021 and 2022: At March 31, 2021 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 18,439,146 ¥ 13,165,127 ¥ 756,413 ¥ 32,360,686 Debt securities Japanese national government and Japanese government agency bonds 6,800,379 401,454 — 7,201,833 Japanese prefectural and municipal bonds — 193,936 — 193,936 Foreign government and official institution bonds 9,508,030 450,443 1,280 9,959,753 Corporate bonds 5,123 2,706,611 77 2,711,811 Residential mortgage-backed securities 27 6,166,313 1,000 6,167,340 Asset-backed securities — 1,045,706 336,811 1,382,517 Other debt securities — — 277,635 277,635 Commercial paper — 1,001,233 — 1,001,233 Equity securities (2) 2,125,587 1,199,431 139,610 3,464,628 Trading derivative assets 136,515 11,774,865 70,058 11,981,438 Interest rate contracts 23,906 7,673,031 21,018 7,717,955 Foreign exchange contracts 929 3,896,713 12,520 3,910,162 Equity contracts 111,680 113,586 6,309 231,575 Commodity contracts — 1 26,896 26,897 Credit derivatives — 91,534 2,354 93,888 Other (7) — — 961 961 Investment securities: Available-for-sale debt securities 34,010,613 12,817,584 289,616 47,117,813 Japanese national government and Japanese government agency bonds 32,073,409 3,199,802 — 35,273,211 Japanese prefectural and municipal bonds — 3,731,513 — 3,731,513 Foreign government and official institution bonds 1,937,204 973,041 16,718 2,926,963 Corporate bonds — 1,134,108 162 1,134,270 Residential mortgage-backed securities — 1,467,115 15 1,467,130 Commercial mortgage-backed securities — 462,966 1,599 464,565 Asset-backed securities — 1,247,565 136,920 1,384,485 Other debt securities — 37,376 134,202 171,578 Commercial paper — 564,098 — 564,098 Equity securities 5,530,077 229,415 45,569 5,805,061 Marketable equity securities 5,530,077 229,415 — 5,759,492 Nonmarketable equity securities (3) — — 45,569 45,569 Other (4) 1,202,230 42,687 18,784 1,263,701 Total ¥ 59,318,581 ¥ 38,029,678 ¥ 1,180,440 ¥ 98,528,699 At March 31, 2021 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 260,149 ¥ 989 ¥ — ¥ 261,138 Trading derivative liabilities 150,750 11,560,634 45,031 11,756,415 Interest rate contracts 10,696 7,343,594 6,839 7,361,129 Foreign exchange contracts 977 4,015,927 5,237 4,022,141 Equity contracts 139,077 92,655 5,686 237,418 Commodity contracts — 1 26,959 26,960 Credit derivatives — 108,457 83 108,540 Other (7) — — 227 227 Obligation to return securities received as collateral (5) 6,484,452 97,307 — 6,581,759 Other (6) — 558,553 (2,212) 556,341 Total ¥ 6,895,351 ¥ 12,217,483 ¥ 42,819 ¥ 19,155,653 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 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 were ¥102,255 million and ¥179,278 million at March 31, 2021 and 2022, respectively. The amounts of unfunded commitments related to these private equity funds were ¥97,413 million and ¥110,360 million at March 31, 2021 and 2022, respectively. (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, 2021 were ¥27,395 million and ¥34,390 million, respectively, and those at March 31, 2022 were ¥30,142 million and ¥39,462 million, respectively. The amounts of unfunded commitments related to these real estate funds and private equity and other funds at March 31, 2021 were ¥1,006 million and ¥4,758 million, respectively, and those at March 31, 2022 were ¥1,011 million and nil, respectively. (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 fiscal years ended March 31, 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. March 31, 2020 Total gains (losses) for the period March 31, 2021 Change in Included Included Purchases Issues Sales Settlements Transfers Transfers out of Level 3 (in millions) Assets Trading account assets: Trading securities (1) ¥ 525,946 ¥ 21,730 (2) ¥ — ¥ 352,917 ¥ — ¥ (189,980) ¥ (117,399) ¥ 190,391 ¥ (27,192) ¥ 756,413 ¥ 23,477 (2) Debt securities Foreign government and official institution bonds 1,052 625 — 49,637 — (49,927) (59) — (48) 1,280 159 Corporate bonds 144 31 — 82 — (180) — — — 77 (5) Residential mortgage-backed securities — — — 51,533 — (50,533) — — — 1,000 — Asset-backed securities 416,259 12,808 — 106,308 — (83,700) (114,864) — — 336,811 16,309 Other debt securities 6,651 11,096 — 69,499 — — — 190,389 (8) — 277,635 11,096 Equity securities 101,840 (2,830) — 75,858 — (5,640) (2,476) 2 (27,144) (8) 139,610 (4,082) Trading derivatives—net 3,477 45,361 (2) (104) 597 (653) — (20,689) (2,159) (803) 25,027 31,184 (2) Interest rate contracts—net (750) 14,401 (32) — — — 1,405 (99) (746) 14,179 11,807 Foreign exchange contracts—net 5,005 3,743 (128) — — — 140 (1,480) 3 7,283 3,812 Equity contracts—net (4,222) 27,299 55 3 — — (21,944) (580) 12 623 15,660 Commodity contracts—net (65) 1 1 — — — — — — (63) 1 Credit derivatives—net 2,727 (166) — — — — (290) — — 2,271 (182) Other—net (9) 782 83 — 594 (653) — — — (72) 734 86 Investment securities: Available-for-sale debt securities 274,930 6,710 (3) (14,559) 308,672 — (11) (276,234) 70 (9,962) 289,616 (2,779) (3) Foreign government and official institution bonds 15,767 — (888) 3,518 — — (1,679) — — 16,718 473 Corporate bonds 10,108 (8) (1) — — — (45) 70 (9,962) (5) 162 (10) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed 1,977 — (346) — — (11) (21) — — 1,599 (163) Asset-backed securities 140,875 6,718 (7,958) 267,767 — — (270,482) — — 136,920 (4,047) Other debt securities 106,188 — (5,366) 37,387 — — (4,007) — — 134,202 968 Equity securities 39,963 (3,231) (3) — 10,481 — (1,725) — 285 (204) 45,569 (4,150) (3) Nonmarketable equity securities 39,963 (3,231) — 10,481 — (1,725) — 285 (204) 45,569 (4,150) Other 36,701 (18,626) (7) (1,349) 2,346 — (18) (270) — — 18,784 (18,620) (7) Total ¥ 881,017 ¥ 51,944 ¥ (16,012) ¥ 675,013 ¥ (653) ¥ (191,734) ¥ (414,592) ¥ 188,587 ¥ (38,161) ¥ 1,135,409 ¥ 29,112 Liabilities Other ¥ 6,606 ¥ (32,946) (4) ¥ 937 ¥ — ¥ 5,336 ¥ — ¥ (27,823) ¥ (7,686) (6) ¥ (10,654) (6) ¥ (2,212) ¥ (17,043) (4) Total ¥ 6,606 ¥ (32,946) ¥ 937 ¥ — ¥ 5,336 ¥ — ¥ (27,823) ¥ (7,686) ¥ (10,654) ¥ (2,212) ¥ (17,043) March 31, 2021 Total gains (losses) for the period Purchases Issues Sales Settlements Transfers into Level 3 (10) Transfers out of Level 3 (10) March 31, 2022 Change in Included Included (in millions) Assets Trading account assets: Trading securities (1) ¥ 756,413 ¥ 41,919 (2) ¥ — ¥ 458,395 ¥ — ¥ (197,245) ¥ (262,150) ¥ 665 ¥ — ¥ 797,997 ¥ 40,113 (2) Debt securities Foreign government and official institution bonds 1,280 287 — 31,591 — (31,432) (15) — — 1,711 47 Corporate bonds 77 (68) — 126 — (100) — 648 — 683 (69) Residential mortgage-backed securities 1,000 (2) — 97,197 — (98,176) (19) — — — — Asset-backed securities 336,811 26,692 — 270,974 — (67,500) (251,746) — — 315,231 27,693 Other debt securities 277,635 14,179 — 21,352 — — — — — 313,166 14,179 Equity securities 139,610 831 — 37,155 — (37) (10,370) 17 — 167,206 (1,737) Trading derivatives—net 25,027 23,754 (2) 1,882 51 (674) — (16,312) 41,076 (3,715) 71,089 46,149 (2) Interest rate contracts—net 14,179 (25,977) 824 — — — 9,696 39,609 (5) (838) 37,493 4,410 Foreign exchange contracts—net 7,283 2,403 206 21 — — 1,833 1,467 (5,750) 7,463 (1,640) Equity contracts—net 623 46,579 858 30 — — (27,543) — 2,873 23,420 42,546 Commodity contracts—net (63) 30 (6) — — — (6) — — (45) 30 Credit derivatives—net 2,271 750 — — — — (292) — — 2,729 819 Other—net (9) 734 (31) — — (674) — — — — 29 (16) Investment securities: Available-for-sale debt securities 289,616 277 (3) 25,143 236,786 — — (287,747) 15,651 (66,790) 212,936 12,545 (3) Foreign government and official institution bonds 16,718 — 607 5,163 — — (5,964) — (4,634) 11,890 87 Corporate bonds 162 (328) 68 557 — — (114) 2,854 (110) 3,089 (265) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed securities 1,599 — 104 — — — (524) — (1,179) — — Asset-backed securities 136,920 580 14,066 231,039 — — (258,226) — — 124,379 6,651 Other debt securities 134,202 25 10,298 27 — — (22,919) 12,797 (8) (60,867) 73,563 6,072 Equity securities 45,569 5,856 (3) — 9,899 — (3,113) — 130 (2,458) 55,883 3,960 (3) Nonmarketable equity securities 45,569 5,856 — 9,899 — (3,113) — 130 (2,458) 55,883 3,960 Other 18,784 (402) (7) 1,049 2,369 — (4,612) (202) — (12,074) 4,912 1,245 (7) Assets held for sale — (2,589) (11) 4,234 770 — — (4,247) 78,750 — 76,918 1,461 (11) Investment securities — (963) 3,791 1 — — (4,247) 66,680 — 65,262 5,737 Other — (1,626) 443 769 — — — 12,070 — 11,656 (4,276) Total ¥ 1,135,409 ¥ 68,815 ¥ 32,308 ¥ 708,270 ¥ (674) ¥ (204,970) ¥ (570,658) ¥ 136,272 ¥ (85,037) ¥ 1,219,735 ¥ 105,473 Liabilities Other ¥ (2,212) ¥ 8,315 (4) ¥ (3,080) ¥ — ¥ 36,535 ¥ — ¥ (19,361) ¥ 5,364 (6) ¥ 1,372 (6) ¥ 16,463 ¥ 15,532 (4) Total ¥ (2,212) ¥ 8,315 ¥ (3,080) ¥ — ¥ 36,535 ¥ — ¥ (19,361) ¥ 5,364 ¥ 1,372 ¥ 16,463 ¥ 15,532 Notes: (1) Includes Trading securities measured under the fair value option. (2) Included in Trading account profits (losses)—net and Foreign exchange gains (losses)—net. (3) Included in Investment securities gains (losses)—net and Other comprehensive income—net. (4) Included in Trading account profits (losses)—net. (5) 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 input includes loss given default. Transfers out of Level 3 for Corporate bonds were due to changes in the impact of unobservable credit worthiness inputs to the entire fair value measurement of the private placement bonds issued by Japanese non-public companies. Unobservable credit worthiness inputs include probability of default based on credit ratings of the bond issuers and loss given default. (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) Includes the reclassification of assets and liabilities in transferred business of MUFG Union Bank to assets and liabilities held for sale. (11) Included in Investment securities gains (losses)—net, Trading account profits (losses)—net, Fees and commissions income and Other comprehensive income—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, 2021 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities and Investment securities: Foreign government and official institution bonds ¥ 16,718 Return on equity method Probability of default 0.2%~1.8% 0.5 % Recovery rate 35.0%~90.0% 66.9 % Market-required return on capital 8.0%~10.0% 10.0 % Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities 89,607 Discounted cash flow Probability of default 4.3%~4.9% 4.7 % Recovery rate 78.0%~96.6% 90.6 % 279,547 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 1.3%~1.6% 1.3 % Prepayment rate 18.3% 18.3 % Probability of default 0.0%~83.7% — (3) Recovery rate 57.4% 57.4 % Other debt securities 313,895 Discounted cash flow Liquidity premium 1.0%~3.2% 2.9 % 79,541 Return on equity method Probability of default 0.0%~8.0% 0.4 % Recovery rate 60.0%~90.0% 78.8 % Market-required return on capital 8.0%~10.0% 10.0 % At March 31, 2021 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net 12,841 Option model Correlation between interest rates 30.0%~61.9% 44.8 % Correlation between interest rate and foreign exchange rate 15.1%~60.0% 41.6 % Volatility 0.0%~100.0% 65.0 % Foreign exchange contracts—net 7,283 Option model Correlation between interest rates 10.0%~70.0% 51.0 % Correlation between interest rate and foreign exchange rate 0.0%~60.0% 38.9 % Correlation between foreign exchange rates 50.0%~70.6% 66.4 % Volatility 9.5%~22.1% 13.7 % Equity contracts—net (4,597) Option model Correlation between foreign exchange rate and equity (58.4)%~55.0% 26.2 % Correlation between equities 15.0%~95.0% 54.0 % Volatility 27.5%~40.0% 31.8 % 5,557 Discounted cash flow Term of litigation 0.0 year ~1.2 years 0.6 year 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) Asse

Parent Company Only Financial I

Parent Company Only Financial Information	12 Months Ended
	Mar. 31, 2022
Condensed Financial Information Disclosure [Abstract]
Parent Company Only Financial Information	PARENT COMPANY ONLY FINANCIAL INFORMATION Distributions of retained earnings of MUFG Bank and Mitsubishi UFJ Trust and Banking are restricted in order to meet the minimum capital adequacy requirements under the Banking Law. Additionally, retained earnings of these banking subsidiaries are restricted, except for approximately ¥5,155 billion and ¥5,094 billion, in accordance with the statutory reserve requirements under the Companies Act at March 31, 2021 and 2022, respectively. See Notes 19 and 21 for further information. The Banking Law and related regulations restrict the ability of these banking subsidiaries to extend loans or credit to the parent company. Such loans or credits to the parent company are generally limited to 15% of the banking subsidiary’s consolidated total capital, as determined by the capital adequacy guidelines. At March 31, 2021 and 2022, approximately ¥6,007 billion and ¥5,662 billion, respectively, of net assets of consolidated subsidiaries may be restricted as to payment of cash dividends and loans to the parent company. The following table presents the parent company only financial information of MUFG: Condensed Balance Sheets As of March 31, 2021 2022 (in millions) Assets: Cash and interest-earning deposits with banking subsidiaries ¥ 229,380 ¥ 231,389 Investments in subsidiaries and affiliated companies 16,658,522 16,504,756 Banking subsidiaries 12,793,367 11,731,745 Non-banking subsidiaries and affiliated companies 3,865,155 4,773,011 Loans to subsidiaries 9,208,439 10,062,030 Banking subsidiaries 8,690,696 9,516,847 Non-banking subsidiaries 517,743 545,183 Other assets 197,231 266,773 Total assets ¥ 26,293,572 ¥ 27,064,948 Liabilities and Shareholders’ equity: Short-term borrowings from banking subsidiaries ¥ 1,206,694 ¥ 1,146,147 Long-term debt from non-banking subsidiaries and affiliated companies 15,897 24,535 Long-term debt 9,226,046 10,055,876 Other liabilities 183,986 233,322 Total liabilities 10,632,623 11,459,880 Total shareholders’ equity 15,660,949 15,605,068 Total liabilities and shareholders’ equity ¥ 26,293,572 ¥ 27,064,948 Condensed Statements of Operations Fiscal years ended March 31, 2020 2021 2022 (in millions) Income: Dividends from subsidiaries and affiliated companies ¥ 376,376 ¥ 404,064 ¥ 586,108 Banking subsidiaries 277,472 317,453 419,691 Non-banking subsidiaries and affiliated companies 98,904 86,611 166,417 Management fees from subsidiaries 33,543 35,095 34,957 Interest income from subsidiaries 174,500 174,816 183,679 Foreign exchange gains—net 4,834 1,089 6,851 Trading account losses—net (37,272) (18,285) (4,059) Gains on sales of investment in subsidiaries and affiliated companies—net 67,406 95 — Other income 14,968 12,552 11,732 Total income 634,355 609,426 819,268 Expense: Operating expenses 30,431 37,567 40,158 Interest expense to subsidiaries and affiliated companies 26,244 11,415 12,256 Interest expense 155,774 159,057 167,057 Other expense 15,024 8,164 7,154 Total expense 227,473 216,203 226,625 Equity in undistributed net income (loss) of subsidiaries and affiliated companies—net (108,069) 727,257 (667,088) Income (loss) before income tax expense (benefit) 298,813 1,120,480 (74,445) Income tax expense (benefit) (7,142) 3,182 8,875 Net income (loss) ¥ 305,955 ¥ 1,117,298 ¥ (83,320) Condensed Statements of Cash Flows Fiscal years ended March 31, 2020 2021 2022 (in millions) Operating activities: Net income (loss) ¥ 305,955 ¥ 1,117,298 ¥ (83,320) Adjustments and other (1,704) (568,317) 653,768 Net cash provided by operating activities 304,251 548,981 570,448 Investing activities: Proceeds from redemption of other investment securities 240,000 — — Proceeds from sales of investment in subsidiaries and affiliated companies 135,581 35,081 136 Purchase of equity investment in subsidiaries and an affiliated company — — (1,000) Net increase in loans to subsidiaries (1,547,178) (462,208) (257,619) Other—net (12,572) (11,531) (9,413) Net cash used in investing activities (1,184,169) (438,658) (267,896) Financing activities: Net decrease in short-term borrowings from subsidiaries (164,272) (49,058) (61,415) Proceeds from issuance of long-term debt 1,844,488 831,121 1,625,173 Repayment of long-term debt (214,994) (514,436) (1,369,254) Repayment of long-term debt to affiliated companies (241,000) (10,500) — Proceeds from sales of treasury stock 2 1 — Payments for acquisition of treasury stock (50,022) (13) (150,017) Dividends paid (304,538) (321,772) (334,620) Other—net (7,791) (1,954) (10,410) Net cash provided by (used in) financing activities 861,873 (66,611) (300,543) Net increase (decrease) in cash and cash equivalents (18,045) 43,712 2,009 Cash and cash equivalents at beginning of fiscal year 203,713 185,668 229,380 Cash and cash equivalents at end of fiscal year ¥ 185,668 ¥ 229,380 ¥ 231,389

Subsequent Events

Subsequent Events	12 Months Ended
	Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS Approval of Dividends On June 29, 2022, the shareholders approved the payment of cash dividends of ¥14.5 per share of Common stock, totaling ¥183,397 million, that were payable on June 30, 2022, to the shareholders of record on March 31, 2022. Repurchase of own shares

Basis of Financial Statements_2

Basis of Financial Statements and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Description of Business	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” or “SCHD”), 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 29 for more information by business segment.
Basis of Financial Statements	Basis of Financial Statements The accompanying consolidated financial statements are presented in Japanese yen, the currency of the country in which MUFG is incorporated and principally operates. The accompanying 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 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.
Use of Estimates	Use of Estimates The preparation of 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 consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to management judgment primarily relate to the allowance for credit losses, the valuation of deferred tax assets, the valuation of financial instruments, the accounting for goodwill and intangible assets, impairment of investment securities, the allowances for repayment of excess interest and accrued severance indemnities and pension liabilities.
Consolidation	Consolidation —The accompanying consolidated financial statements include the accounts of MUFG, its subsidiaries and certain variable interest entities (“VIE”s) (together, the “MUFG Group”). In situations in which the MUFG Group has a controlling financial interest in other entities, including certain VIEs, such entities are consolidated and noncontrolling interests, if any, are recorded in Total equity. Intercompany transactions and balances have been eliminated. Investments in affiliated companies (companies over which the MUFG Group has the ability to exercise significant influence) are accounted for by the equity method of accounting and are reported in Other assets. The MUFG Group’s equity interest in the earnings of these equity investees and other-than-temporary impairment (“OTTI”) are reported in Equity in earnings of equity method investees-net. The MUFG Group recognizes an impairment loss on investments in equity method investees that is other-than-temporary. The MUFG Group determines whether loss on investments is other-than-temporary, through consideration of various factors, such as inability to recover the carrying amount of the investment, the inability of the investee to sustain an earnings capacity that would justify the carrying amount of the investment, the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the investees, and the intent and ability to retain its investment in the investees for a period of time sufficient to allow for any anticipated recovery in the fair value. The MUFG Group also evaluates additional factors, such as the condition and trend of the economic cycle, and trends in the general market. The MUFG Group consolidates VIEs if it has the power to direct the activities of a VIE which most significantly impact the VIE’s economic performance and has the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. To assess whether a VIE should be consolidated or not, the MUFG Group considers all factors, such as the purpose and design of the VIE, contractual arrangements, and the MUFG Group’s involvement in both the establishment of the VIE and day-to-day activities of the VIE. The MUFG Group considers a right to make the most significant decisions affecting a VIE to determine whether it is deemed to have the power to direct the activities of the VIE. Furthermore, the MUFG Group considers its economic interests in the VIE, including investments in debt or equity instruments issued by the VIE, liquidity and credit enhancement, and guarantees to determine whether such interests are potentially significant to the VIE or not.
Cash Flows	Cash Flows—For the purposes of reporting cash flows, cash and cash equivalents consist of Cash and due from banks, Interest-earning deposits in other banks, and certain restricted cash included in Other assets. Restricted cash included in cash and cash equivalents represents cash or deposits subject to withdrawal or usage restrictions, and mainly consist of reserves on deposits with the Bank of Japan and similar reserves required for foreign offices and subsidiaries engaged in banking businesses in foreign countries. Cash flows from qualified hedging activities are classified in the same category as the items being hedged.
Translation of Foreign Currency Financial Statements and Foreign Currency Transactions	Translation of Foreign Currency Financial Statements and Foreign Currency Transactions —Financial statements of overseas entities are translated into Japanese yen using the respective fiscal year-end exchange rates for assets and liabilities. Income and expense items are translated at average rates of exchange for the respective fiscal years. Foreign currency translation gains and losses related to the financial statements of overseas entities of the MUFG Group, net of related income tax effects, are credited or charged directly to Foreign currency translation adjustments, a component of Accumulated other comprehensive income (“Accumulated OCI”). Tax effects of gains and losses on foreign currency translation of the financial statements of overseas entities are not recognized unless it is apparent that the temporary differences will reverse in the foreseeable future.
Repurchase Agreements, Securities Lending and Other Secured Financing Transactions	Repurchase Agreements, Securities Lending and Other Secured Financing Transactions—Securities sold with agreements to repurchase (“repurchase agreements”), securities purchased with agreements to resell (“resale agreements”) and securities lending and borrowing transactions are accounted for as secured financing or lending transactions, if the transferor has not surrendered control over the securities. Repurchase agreements and resale agreements are generally carried at the amounts at which the securities will be subsequently sold or repurchased, and securities lending and borrowing transactions are generally carried at the amount of cash collateral advanced or received. If they meet the relevant conditions for the surrender of control, they are accounted for as sales of securities with related off-balance sheet forward repurchase commitments or purchases of securities with related off-balance sheet forward resale commitments. For the fiscal years ended March 31, 2020, 2021 and 2022, there were no such transactions accounted for as sales or purchases.
Collateral	Collateral—For secured lending transactions, including resale agreements, securities borrowing transactions, commercial lending and derivative transactions, the MUFG Group, as a secured party, generally has the right to require the counterparties to provide collateral, including letters of credit, cash, securities and other financial assets. For most secured lending transactions, the MUFG Group maintains strict levels of collateralization governed by a daily mark-to-market analysis. Financial assets pledged as collateral are generally negotiable financial instruments and are permitted to be sold or repledged by secured parties. If the MUFG Group sells these financial assets received as collateral, it recognizes the proceeds from the sale and its obligation to return the collateral. For secured borrowing transactions, principally repurchase agreements and securities lending transactions and derivative transactions, where the secured party has the right to sell or repledge financial assets pledged as collateral, the MUFG Group separately discloses those financial assets pledged as collateral in the accompanying consolidated balance sheets.
Trading Account Securities	Trading Account Securities —Securities and money market instruments held in anticipation of short-term market movements and for resale to customers are included in Trading account assets, and short trading positions of these instruments are included in Trading
Investment Securities	Investment Securities —Debt securities for which the MUFG Group has both the ability and positive intent to hold to maturity are classified as Held-to-maturity debt securities and are carried at amortized cost. Debt securities that the MUFG Group may not hold to maturity other than those classified as Trading account securities, are classified as Available-for-sale debt securities, and are carried at their fair values, with unrealized gains and losses reported on a net-of-tax basis within Accumulated OCI, which is a component of equity. Available-for-sale debt securities are considered to be impaired if the fair value is less than the amortized cost basis. An impairment loss is recognized in earnings for a security if the MUFG Group has intent to sell such a debt security or if it is more likely than not the MUFG Group will be required to sell such a debt security before recovery of its amortized cost basis. If not, the credit component of an impairment loss is recognized in earnings by recording an allowance for credit losses, limited by the amount of impairment loss. However, the noncredit component of an impairment loss is recognized in Accumulated OCI. In determining whether a credit loss exists, the MUFG Group generally considers factors such as the financial condition of the issuer and the extent of decline in fair value. For Held-to-maturity debt securities, an allowance for expected credit losses over the remaining expected life is required to be provided. Equity securities include marketable equity investment securities and nonmarketable equity investment securities. Marketable equity investment securities are measured at fair value with unrealized gains or losses reflected in net income. Nonmarketable equity investment securities are primarily measured at cost minus impairment, if any, plus or minus changes resulting from observable price changes. Nonmarketable equity investment securities held by subsidiaries that are investment companies or brokers and dealers, are subject to the specialized industry accounting principles for investment companies and brokers and dealers. Securities of those subsidiaries are carried at their fair values.
Derivative Financial Instruments	Derivative Financial Instruments —The MUFG Group engages in derivative activities involving swaps, forwards, futures, options, and other types of derivative contracts. Derivatives are used in trading activities to generate trading revenues and fee income for its own account and to respond to customers’ financial needs. Derivatives are also used to manage counterparty credit risk and market risk exposures to fluctuations in interest and foreign exchange rates, equity and commodity prices. Derivatives entered into for trading purposes are carried at fair value and are reported as Trading account assets or Trading account liabilities, as appropriate. The fair values of derivative contracts executed with the same counterparty under legally enforceable master netting agreements are presented on a gross basis. Changes in the fair value of such contracts are recognized currently in Foreign exchange gains (losses)—net with respect to foreign exchange contracts and in Trading account profits (losses)—net with respect to interest rate contracts and other types of contracts. Embedded features that are not clearly and closely related to the host contracts and meet the definition of derivatives are separated from the host contracts and measured at fair value unless the contracts embedding the derivatives are measured at fair value in their entirety.
Loans	Loans —Loans originated by the MUFG Group (“originated loans”) are carried at the principal amount outstanding, adjusted for unearned income and deferred net nonrefundable loan fees and costs. Originated loans held and intended for dispositions or sale in secondary markets are transferred to the held-for-sale classification and carried at the lower of cost or estimated fair value generally on an individual loan basis. Loan origination fees, net of certain direct origination costs, are deferred and recognized over the contractual life of the loan as an adjustment to yield using a method that approximates the interest method. The MUFG Group classifies its loan portfolio into the following portfolio segments—Commercial, Residential, Card, MUFG Americas Holdings Corporation (“MUFG Americas Holdings” or “MUAH”), Bank of Ayudhya Public Company Limited (“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. Past due status is determined based on the contractual terms of the loan and the actual number of days since the date the last payment was made. Originated loans are generally placed on nonaccrual status when substantial doubt exists as to the full and timely collection of either principal or interest, specifically 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, MUFG Americas Holdings, and Krungsri segments, and six months or more with respect to loans within the Residential segment. A nonaccrual loan may be restored to an accrual status when interest and principal payments become current and management expects that the borrower will make future contractual payments as scheduled. When a loan is placed on nonaccrual status, interest accrued but not received is generally reversed against interest income. Cash receipts on nonaccrual loans, for which the ultimate collectibility of principal is uncertain, are applied as principal reductions; otherwise, such collections are credited to income. The MUFG Group modifies certain loans in conjunction with its loss-mitigation activities. Through these modifications, concessions are granted to a borrower who is experiencing financial difficulty, generally in order to minimize economic loss, to avoid foreclosure or repossession of collateral, and to ultimately maximize payments received from the borrower. The concessions granted vary by portfolio segment, by program, and by borrower-specific characteristics, and may include interest rate reductions, term extensions, payment deferrals, and partial principal forgiveness. Loan modifications that represent concessions made to borrowers who are experiencing financial difficulties are identified as troubled debt restructurings (“TDRs”).
Loan Securitization	Loan Securitization—The MUFG Group securitizes and services commercial, industrial, and residential loans in the normal course of business. The MUFG Group accounts for a transfer of loans in a securitization transaction as a sale if it meets relevant conditions for the surrender of control. Otherwise, the transfer is accounted for as a collateralized borrowing transaction. When a securitization is accounted for as a sale, the proceeds from a sale of financial assets consist of the cash and any other assets obtained, including beneficial interests and separately recognized servicing assets, in the transfer less any liabilities incurred, including separately recognized servicing liabilities. All proceeds and reductions of proceeds from a sale shall be initially measured at fair value.
Allowance for Credit Losses (Loans)	Allowance for Credit Losses (Loans) —The MUFG Group maintains an allowance for credit losses, which is a valuation account that is deducted from the amortized cost basis of the loans to present the net amount expected to be collected on the loans. The amount necessary to adjust the allowance for credit losses for management’s current estimate of expected credit losses on loans is reported in net income as a credit loss expense. Actual credit losses (amounts deemed uncollectible, in whole or in part), net of recoveries, are generally determined based on detailed loan reviews and a credit assessment by management at each balance sheet date and are deducted from the allowance for credit losses as net charge-offs. The MUFG Group generally applies its charge-off policy to all loans in its portfolio regardless of the type of borrower. Management believes that the provision for credit losses is adequate. Key elements relating to the policies and discipline used in determining the allowance for credit losses are credit classification and the related borrower categorization process. The categorization is based on conditions that may affect the ability of borrowers to service their debt, taking into consideration current financial information, historical payment experience, credit documentation, public information, analyses of relevant industry segments and existing economic conditions. In determining the appropriate level of the allowance, the MUFG Group evaluates the probable loss by collateral value, historical loss experience, probability of insolvency and category of loan based on its type and characteristics. For the allowance methodology, the MUFG Group uses quantitative models that incorporate economic forecast scenarios. These economic forecast scenarios include macroeconomic variables that have historically been correlated with historical credit losses. These variables include, but are not limited to, unemployment rates and gross domestic product. As any one economic forecast scenario is inherently uncertain, multiple economic forecast scenarios were leveraged. The macroeconomic variables in multiple economic forecast scenarios and weightings given to each scenario depend on a variety of factors including recent economic conditions and views of internal, as well as third-party, economists. The allowance for credit losses for TDR is measured using the discounted cash flow method, or based on the fair value of the collateral if the loan is collateral dependent. The allowance for credit losses includes qualitative adjustments to cover losses that are expected but were not reflected in the modeled allowance. For example, factors that the MUFG considers include remaining time to maturity and extent of prepayments, credit concentration, the volume and severity of past due, changes in lending policy and procedures, among others. In all segments, when estimating the allowance for credit losses, significant management assumptions are incorporated in economic variables, qualitative adjustments, or both to capture the heightened volatility and uncertainty in the economy due to the COVID-19 pandemic. 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. The methodologies used to estimate the allowance and the charge-off policy for the major portfolio segments are as follows: Commercial segment In the Commercial segment, expected credit losses of loans are measured on a collective basis when similar risk characteristics exist. Risk characteristics that are considered for aggregation of loans include internal credit ratings, geographical location, and industry of the borrower. The collectively-assessed allowance is measured over the contractual term of the loans that is adjusted for expected prepayments, using probability of default (“PD”), loss given default (“LGD”) and exposure at default (“EAD”) loss forecasting model, which is based on historical information and adjusted to incorporate expectations of future economic conditions considering economic variables such as gross domestic product and unemployment rates. The PD is determined as the marginal PD that denotes the likelihood that a borrower is observed to experience the default during a defined period of time, based on internal credit rating, geographical location, or industry of the borrower. The LGD is determined as the estimated loss on the loan that would be realized upon the default of the borrower, mainly based on the historical experience of collections against loans in default. The PD and LGD are continually reviewed to determine the appropriate level of the allowance for credit loss. Qualitative adjustments are made to cover losses that are expected but not adequately captured in the quantitative forecasting model or economic assumptions, considering factors such as remaining time to maturity and extent of prepayments, the volume and severity of past due loans, changes in lending policy and procedures, the industry in which a borrower operates, and changes in other external factors. The collectively-assessed allowance methodology incorporates an economic forecast over a three-year period. Beyond the three-year economic forecast, the allowance methodology reverts to an average historical loss information on a straight-line basis over a two-year period. When a loan does not share risk characteristics with other loans, expected credit losses for that loan are measured on an individual basis. Individually-assessed allowance is measured based on the present value of expected future cash flows discounted at the loan’s original effective interest rate, or the fair value of the collateral if the loan is collateral dependent. The allowance for loans that have been modified into a TDR or reasonably expected to be modified into TDR are measured on an individual basis. For nonaccrual TDRs, the allowance for credit losses is provided for these loans using the discounted cash flow method, or based on the fair value of the collateral. For TDRs accounted for as accruing loans, the allowance for credit losses is determined by discounting the estimated future cash flows using the original effective interest rate of the loans prior to modification. In relation to loans categorized as Legally/Virtually Bankrupt, the carrying amount of loans less estimated value of the collateral and guaranteed amount is generally considered uncollectible, and is charged off. Residential segment In the Residential segment, the loans are comprised of smaller-balance homogeneous loans and expected credit losses of loans are measured on a collective basis. The allowance for credit losses is measured over the contractual term of the loans that is adjusted for expected prepayments, using the state transition probability matrix, which captures delinquency status changes and prepayments by loans’ remaining term, and is based on historical information and adjusted to incorporate expectations of future economic conditions considering economic variables, such as unemployment rates. The LGD is also used to capture the estimated loss on the loan that would be realized upon the default of the borrower. The collectively-assessed allowance methodology incorporates an economic forecast over a three-year period. Beyond the three-year economic forecast, the allowance methodology reverts to average historical loss information on a straight-line basis over a two-year period. The allowance for loans that have been modified into a TDR or reasonably expected to be modified TDR are measured on an individual basis. For nonaccrual TDRs, the allowance for credit losses is provided for these loans using the discounted cash flow method, or based on the fair value of the collateral. For TDRs accounted for as accruing loans, the allowance for credit losses is determined by discounting the estimated future cash flows using the original effective interest rate of the loans prior to modification. In relation to loans that are in past due status over a certain period of time and deemed uncollectible, the carrying amount of loans less estimated value of the collateral and guaranteed amount is generally considered uncollectible and charged off. Card segment In the Card segment, the loans are smaller-balance homogeneous loans and expected credit losses of loans are measured on a collective basis. The allowance for credit losses is measured over the contractual term of the loans that is adjusted for expected prepayments, using the state transition probability matrix, which captures delinquency status changes and prepayments by loans’ remaining term, and is based on historical information and adjusted to incorporate expectations of future economic conditions considering economic variables, such as unemployment rate. The collectively-assessed allowance methodology incorporates an economic forecast over a three-year period. Beyond the three-year economic forecast, the allowance methodology reverts to average historical loss information. The allowance for loans that have been modified into a TDR or reasonably expected to be modified TDR are measured on an individual basis, and the allowance for credit losses is determined using the discounted cash flow method whereby the estimated future cash flows are discounted using the original effective interest rate of the loans prior to modification. In relation to loans that are in past due status over a certain period of time and deemed uncollectible, the amount of loans is generally fully charged off. MUFG Americas Holdings segment In the MUFG Americas Holdings segment, expected credit losses are measured on a collective basis when similar risk characteristics exist. The allowance for credit loss is calculated as the product of PD, LGD, and EAD modeled parameters that are projected over the assets’ remaining contractual lives.Expected loss models use historical loss information and a variety of economic assumptions that consider economic variables such as gross domestic product and unemployment rates, to estimate PD, LGD, and EAD. These models are tailored to different loan segments, classes and products by changing the economic variables or their weighting in the calculation used to estimate expected losses. The collectively-assessed allowance methodology incorporates an economic forecast over a three-year period. Beyond the two-year economic forecast, the allowance methodology reverts to average historical loss information on a straight-line basis over two-year period. Loans that do not share risk characteristics are evaluated individually to determine the allowance balance. Individually-assessed allowance is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, or the fair value of the collateral if the loan is collateral dependent. Management implements qualitative adjustments to the collectively-assessed allowance to account for the risks not incorporated in the model between current conditions and those reflected in the historical loss information used to estimate the models. These qualitative factors include changes in credit policies, problem loan trends, identification of new risks not incorporated into the modeling framework, credit concentrations, changes in lending management and other external factors. Qualitative adjustments are also used to adjust the collectively-assessed allowance to account for risks attributed to imprecision in the economic forecast and when risks emerge that impact specific portfolio components (i.e., natural disasters). The allocated allowance for large groups of smaller-balance homogeneous loans is established for consumer loans as well as for smaller balance commercial loans. These loans are managed on a pool basis, and loss factors are based on expected net charge-off ranges. The allowance for loans that have been modified into a TDR or reasonably expected to be modified TDR are measured either individually or in pools with similar risk characteristics. The allowance for individually assessed TDR loans can be measured using a discounted cash flow methodology, or by evaluating the fair value of the collateral, if collateral dependent. When the value of a concession cannot be measured using a method other than the discounted cash flow method, the value of a concession is measured by discounting the expected future cash flows at the original interest rate of the loan. Commercial loans are generally considered uncollectible based on an evaluation of the financial condition of a borrower as well as the value of any collateral and, when considered to be uncollectible, loans are charged off in whole or in part. Consumer loans are generally considered uncollectible based on past due status and the value of any collateral and, when considered to be uncollectible, loans are charged off in whole or in part. Krungsri segment In the Krungsri segment, expected credit losses are measured on a collective basis for portfolios of loans that share similar economic risk characteristics. Expected credit losses are a probability-weighted estimate of the present value of credit losses. These are measured as the present value of the difference between the cash flows under the contract and the cash flows expected to be received arising from the weighting of multiple future economic scenarios that consider economic variables such as gross domestic product and unemployment rates, discounted at the loan’s effective interest rate. Qualitative adjustments are made to cover losses that are expected but not adequately captured in the quantitative forecasting model. Loans that do not share risk characteristics are evaluated individually to determine the allowance balance. Individually-assessed allowance is measured based on the present value of expected future cash flows discounted at the loan’s original effective interest rate, or the fair value of the collateral if the loan is collateral dependent. The allocated allowance for large groups of smaller-balance homogeneous loans is established for smaller balance loans such as housing loans, credit card loans, and personal loans. These loans are managed on a pool basis, and loss factors are based on expected net charge-off ranges. The allowance for loans that have been modified into a TDR or reasonably expected to be modified TDR are measured on an individual basis. For nonaccrual TDRs, the allowance for credit losses is provided for these loans using the discounted cash flow method, or based on the fair value of the collateral. For TDRs accounted for as accruing loans, the allowance for credit losses is determined by using the discounted cash flow method whereby the estimated future cash flows are discounted using the original effective interest rate of the loans prior to modification.
Allowance for Off-balance Sheet Credit Instruments	Allowance for Off-Balance Sheet Credit Instruments—The MUFG Group maintains an allowance for credit losses on off-balance sheet credit instruments that are not unconditionally cancellable, including commitments to extend credit, guarantees, standby letters of credit and other financial instruments. The allowance is recorded as a liability in Other liabilities. The MUFG Group adopts the same methodology used in determining the allowance for credit losses on loans. Potential credit losses related to derivatives are considered in the fair value of the derivatives.
Premises and Equipment	Premises and Equipment —Premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation is charged to operations over the estimated useful lives of the related assets. Leasehold improvements are depreciated over the terms of the respective leases or the estimated useful lives of the improvements, whichever is shorter. MUFG, MUFG Bank and Mitsubishi UFJ Trust and Banking apply the declining-balance method in depreciating their premises and equipment, while other subsidiaries mainly apply the straight-line method, at rates principally based on the following estimated useful lives: Years Buildings 15 to 50 Equipment and furniture 2 to 20 Leasehold improvements 2 to 39 Maintenance, repairs and minor improvements are charged to operations as incurred. Major improvements are capitalized. Net gains or losses on dispositions of premises and equipment are included in Other non-interest income or expense, as appropriate. Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of an asset to be held and used is measured by a comparison of the carrying amount to future undiscounted net cash flows expected to be generated by the asset. If an asset is considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the asset exceeds the fair value. For purposes of recognition and measurement of an impairment loss, a long-lived asset or assets are grouped with other assets and liabilities at the lowest level with independent and identifiable cash flows. Assets to be disposed of by sale are reported at the lower of the carrying amount or fair value less estimated cost to sell.
Goodwill	Goodwill —The MUFG Group recognizes goodwill, as of the acquisition date, measured as the excess of the purchase price over the fair value of the net assets acquired. Goodwill related to investments in equity method investees is included in Other assets as a part of the carrying amount of investments in equity method investees. Goodwill arising from a business combination is not amortized but is tested at least annually for impairment. Goodwill is recorded at a designated reporting unit level for the purpose of assessing impairment.
Intangible Assets	Intangible assets —Intangible assets consist of software, core deposit intangibles, customer relationships, trade names and other intangible assets. These are amortized over their estimated useful lives unless they have indefinite useful lives. Amortization of intangible assets is computed in a manner that best reflects the economic benefits of the intangible assets as follows: Useful lives (years) Amortization method Software 3 to 10 Straight-line Core deposit intangibles 9 to 16 Straight-line Customer relationships 3 to 27 Straight-line, Declining-balance Trade names 10 to 40 Straight-line Intangible assets having indefinite useful lives are not amortized but are subject to annual impairment tests. An impairment exists if the carrying value of an indefinite-lived intangible asset exceeds its fair value. For other intangible assets subject to amortization, an impairment is recognized if the carrying amount is not recoverable and the carrying amount exceeds the fair value of the intangible asset.
Assets and Liabilities Held for Sale	Assets and Liabilities Held for Sale —The MUFG Group classifies assets and liabilities as held for sale (“disposal group”) when management, having the authority to approve the action, commits to a plan to sell the disposal group and the sale is probable within one year, actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn , and the disposal group is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such disposal groups. The disposal group is measured at the lower of carrying value or fair value less costs to sell. Any loss resulting from the measurement is recognized in the period the held-for-sale criteria are met. Conversely, gains are not recognized until the date of the sale. After being classified as held for sale, loans held for investment are transferred to loans held for sale, carried at the lower of cost or fair value measured on a portfolio basis, and no allowance for loan losses is estimated. After being classified as held for sale, held-to-maturity debt securities are transferred to securities available for sale and assets are not depreciated or amortized. In September 2021, the MUFG Group agreed to the sale of all shares in MUFG Union Bank, N.A., the wholly-owned primary operating subsidiary in the United States, to U.S. Bancorp. As a result, the assets and liabilities of MUFG Union Bank, which will be transferred to U.S. Bancorp, were reclassified as held for sale, and included in Other assets and Other liabilities in the accompanying consolidated balance sheets at March 31, 2022. See Note 2 for further discussion. Unless otherwise indicated, all other notes to the consolidated financial statements do not include amounts of assets and liabilities held for sale.
Accrued Severance and Pension Liabilities	Accrued Severance and Pension Liabilities —The MUFG Group has defined benefit pension plans and other postretirement benefit plans, including severance indemnities plans (“SIPs”). The liabilities related to these plans are computed and recognized based on actuarial computations. Net actuarial gains and losses that arise from differences between actual experience and assumptions are
Long-term Debt	Long-Term Debt—Premiums, discounts and issuance costs of long-term debt are amortized based on the method that approximates the interest method over the term of the long-term debt.
Obligations under Guarantees	Obligations under Guarantees—The MUFG Group provides customers with a variety of guarantees and similar arrangements, including standby letters of credit, financial and performance guarantees, credit protection, and liquidity facilities. The MUFG Group recognizes guarantee fee income over the guarantee period based on the contractual terms of the guarantee contracts. It is the MUFG Group’s business practice to receive a guarantee fee at the inception of the guarantee, which approximates market value of the guarantee and is initially recorded as a liability, which is then recognized as guarantee fee income over the guarantee period.
Allowance for Repayment of Excess Interest	Allowance for 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’s future forecasts. The allowance is recorded as a liability in Other liabilities.
Fees and Commissions	Fees and Commissions —The MUFG Group recognizes revenue from contracts with customers in the amount of consideration it expects to receive upon the transfer of control of a good or service. The timing of recognition is dependent on whether the MUFG Group satisfies a performance obligation by transferring control of the product or service to a customer over time or at a point in time. The following is an explanation of the MUFG Group’s key revenue from contracts with customers and the timing of its recognition. Fees and commissions on deposits consist of fees and commissions charged for transaction-based services such as usage of automated teller machines and withdrawal services, and for periodic account maintenance services. The MUFG Group’s performance obligation for transaction-based services is satisfied and the fees and commissions are recognized at the point in time when the MUFG Group’s performance under the terms of a contractual arrangement is completed, which is at the settlement of a transaction, while the MUFG Group’s performance obligation for maintenance services is satisfied and the fees and commissions are recognized over the course of each month. Fees and commissions on remittances and transfers consist of fees and commissions charged for settlement transactions such as domestic fund remittances, including electronic banking transactions, and are recognized at the point in time when the MUFG Group’s performance under the terms of a contractual arrangement is completed, which is at the settlement of a transaction. Fees and commissions on foreign trading business consist of fees and commissions charged for fund collection and trade-related financing services related to foreign trading business, and are recognized in the period in which the related service is provided. If they arise from foreign trading business activities under which the customer consumes the related services at a point in time (e.g. foreign exchange fees), such fees are recognized at the same point in time. If they arise from foreign trading business activities under which the customer consumes the related services equally over the period of service (e.g. commercial letters of credit), such fees are recognized over the same period. Fees and commissions on credit card business consist of fees and commissions such as interchange income, royalty and other service charges from franchisees. Interchange income from the credit card business is recognized as processed transactions are settled through the associated payment networks, while royalty and other service charges related to the credit card business are recognized on a straight-line basis over the period of service. Fees and commissions on security-related services primarily consist of fees and commissions for sales and transfers of securities including investment funds, underwriting, brokerage and advisory services, arrangement fees on securitizations, and agency services for the calculation and payment of dividends. Fees and commissions on security-related services are recognized in the period in which the related service is provided. If they arise from security-related services under which the customer consumes the related services at a point in time (e.g. sales and transfers of securities are executed at the customer’s direction; underwritings of debt and equity securities or securitizations are completed at the trade date; advice is provided to the clients; and dividends are calculated and then paid to investors), such fees are recognized at the same point in time. If they arise from security-related services under which the customer consumes the related services equally over the period of service (e.g. retainer fees on M&A advisory fees), such fees are recognized over the same period. The advisory fees which are paid upon meeting certain performance goals (e.g. success fees on M&A advisory fees) are recognized at the point in time when the performance goals are met. Fees and commissions on administration and management services for investment funds primarily consist of fees and commissions earned from administrating and managing investment funds, including assets under management on behalf of clients. Such fees and commissions are recognized equally over the period of service at the amount calculated primarily based on the outstanding amount of each entrusted asset, the percentage of fees, and the extent of the service provided to administer the investment funds. Trust fees consist primarily of fees earned by fiduciary asset management and administration services for corporate pension plans and investment funds, and are recognized on an accrual basis, generally based on the volume of trust assets under management and/or the operating performance for the accounting period of each trust account. With respect to the trust accounts with a guarantee of trust principal, trust fees are determined based on the profits earned by individual trust accounts during the trust accounting period, less deductions, including provision for reserves, impairment for individual investments and dividends paid to beneficiary certificate holders. The trust fees for these trust accounts are accrued based on the amounts expected to be earned during the accounting period of each trust account. Guarantee fees consist of fees related to the guarantee business such as providing guarantees on residential mortgage loans and other loans, and are recognized over the contractual periods of the respective guarantees. Insurance commissions consist of commissions earned from third-party insurance companies for marketing and selling insurance products and for the maintenance of insurance contracts. The former is recognized at the point in time which the associated service is fulfilled as the insurance contract is established by the insurance company, while the latter is recognized over the insurance period. Fees and commissions on real estate business primarily consist of fees from real estate agent services, and are recognized in the period in which the related service is provided when assisting customers in the sales or purchase of real estate property.
Income Taxes	Income Taxes —The MUFG Group accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and deferred tax liabilities for the expected future tax consequences of events that have been included in the accompanying consolidated financial statements. Under this method, deferred tax assets and deferred tax liabilities are determined based on the differences between the financial statements and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and deferred tax liabilities is recognized in income in the period that includes the enactment date. The MUFG Group records net deferred tax assets to the extent these assets will more likely than not be realized. In making such determination, all available positive and negative evidence is considered, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies and recent financial operations. In the event the MUFG Group were to determine that it would be able to realize deferred tax assets in the future in excess of their net recorded amount, the MUFG Group would make an adjustment to the valuation allowance, which would reduce the provision for income taxes.
Free Distributions of Common Shares	Free Distributions of Common Shares—As permitted by the Companies Act of Japan (the “Companies Act”), Japanese companies, upon approval by the Board of Directors, may make a free distribution of shares, in the form of a “stock split” as defined, to shareholders. In accordance with generally accepted accounting practice in Japan, such distribution does not give rise to any change in capital stock or capital surplus accounts. Common shares distributed are recorded as shares issued on the distribution date. See Note 18 for further information.
Earnings (loss) Per Common Share	Earnings (loss) per Common Share—Basic earnings per share (“EPS”) excludes dilutive effects of potential common shares and is computed by dividing earnings applicable to common stock shareholders by the weighted average number of common shares outstanding for the period, while diluted EPS gives effect to all dilutive potential common shares that were outstanding during the period. See Note 22 for the computation of basic and diluted EPS.
Treasury Stock	Treasury Stock—The MUFG Group presents its treasury stock, including shares of MUFG owned by its subsidiaries and affiliated companies, as a reduction of equity on the accompanying consolidated balance sheets at cost and accounts for treasury stock transactions under an average cost method. Gains (losses) on sales of treasury stock are charged to capital surplus and unappropriated retained earnings.
Comprehensive Income	Comprehensive Income—Comprehensive income includes net income (loss) before attribution to noncontrolling interests and other comprehensive income (“OCI”). All changes in unrealized gains and losses on investment securities, unrealized gains and losses on derivatives qualifying for cash flow hedges, defined benefit plans and foreign currency translation adjustments constitute OCI and are presented, with related income tax effects, in the accompanying consolidated statements of comprehensive income. OCI also includes changes in the instrument-specific credit risk on financial liabilities (“debt valuation adjustments” or “DVA”) accounted for under the fair value option.
Stock-Based Compensation	Stock-Based Compensation—MUFG and certain of its subsidiaries have a stock compensation-type stock option plan (“Stock Option Plan”) for directors (excluding outside directors and directors serving as audit committee members), corporate executives, executive officers and senior fellows (collectively, “officers”). Compensation costs under the Stock Option Plan are recognized based on the grant date fair value of the stock option (“Stock Acquisition Rights”) over the period during officers are required to provide service in accordance with the terms of the plan. MUFG and certain of its subsidiaries also have performance-based stock compensation plan (“the Board Incentive Plan”). The awards granted under the Board Incentive Plan are classified as either liability for the part of award which are provided to officers in cash or equity for the part of award which are provided to officers in the common shares of MUFG. Compensation costs are recognized over the requisite service period for the entire awards. For awards classified as liability, compensation costs are measured based on the fair value calculated by the quoted price of common shares of MUFG at the date of fiscal year-end and remeasured at the end of each reporting period. Changes in quoted prices of common shares of MUFG between the date of grant and the settlement of awards are recognized in the period which the changes occur. For awards classified as equity, compensation costs are measured based on the grant date fair value by the quoted price of the common shares of MUFG.
Accounting Changes	Accounting Changes Measurement of Credit Losses on Financial Instruments —In June 2016, the Financial Accounting Standards Board ("FASB") issued new guidance which replaces the incurred loss impairment methodology in current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to estimate credit losses. Under this guidance, the measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount of the financial asset (or a group of financial assets) measured at amortized cost basis. For available-for-sale debt securities, a credit loss is recorded through an allowance for credit losses and the amount of the allowance is limited to the amount by which fair value is below amortized cost. For purchased financial assets with a more-than-insignificant amount of credit deterioration since origination that are measured at amortized cost basis, the initial allowance for credit losses is added to the purchase price rather than being reported as a credit loss expense, only subsequent changes in the allowance are recorded as a credit loss expense, and interest income is recognized based on the effective interest rate, excluding the discount embedded in the purchase price that is attributable to the acquirer’s assessment of credit losses at acquisition. This guidance also expands the disclosure requirements regarding an entity’s assumptions, models, and methods for estimating the allowance, and requires the entity to disclose the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination. In April 2019 and November 2019, the FASB issued additional guidance to improve certain aspects of this guidance. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The MUFG Group adopted the guidance on April 1, 2020. Upon adoption, the MUFG Group resulted in an increase in the beginning balance of the allowance for credit losses and the allowance for off-balance sheet credit instruments of ¥408.1 billion and a decrease in retained earnings of ¥285.8 billion.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Troubled Debt Restructurings and Vintage Disclosures – In March 2022, the FASB issued new guidance which eliminates the accounting and disclosure requirements for troubled debt restructurings 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

Basis of Financial Statements_3

Basis of Financial Statements and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Estimated Useful Lives of Premises and Equipment	MUFG Bank and Mitsubishi UFJ Trust and Banking apply the declining-balance method in depreciating their premises and equipment, while other subsidiaries mainly apply the straight-line method, at rates principally based on the following estimated useful lives: Years Buildings 15 to 50 Equipment and furniture 2 to 20 Leasehold improvements 2 to 39
Useful Lives of Intangible Assets and Amortization Method by Major Class	Amortization of intangible assets is computed in a manner that best reflects the economic benefits of the intangible assets as follows: Useful lives (years) Amortization method Software 3 to 10 Straight-line Core deposit intangibles 9 to 16 Straight-line Customer relationships 3 to 27 Straight-line, Declining-balance Trade names 10 to 40 Straight-line

Business Developments (Tables)

Business Developments (Tables)	12 Months Ended
	Mar. 31, 2022
Business Combinations [Abstract]
Estimated Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the estimated fair values of the assets acquired and liabilities assumed of Danamon and its subsidiaries as of the acquisition date: (in millions) Loans ¥ 1,086,638 Intangible assets (1) 146,899 Total assets 1,728,480 Deposits—Total deposits 915,075 Total liabilities 1,242,115 Note:
Pro Forma Assets and Liabilities	The following table summarizes the estimated fair values of the assets acquired and liabilities as of the acquisition date: (in millions) Loans ¥ 515,933 Total assets 522,797 Total liabilities 138
Disposal Groups, Including Discontinued Operations	Assets and liabilities reclassified as held for sale at March 31, 2022 are shown below: At March 31, 2022 (in millions) Assets held for sale: Interest-earning deposits in other banks ¥ 1,110,633 Investment securities 3,188,257 Loans, net of allowance for credit losses 6,561,316 Other 761,361 Total ¥ 11,621,567 Liabilities held for sale: Deposits ¥ 10,448,481 Other 709,179 Total ¥ 11,157,660

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Amortized Cost, Gross Unrealized Gains (Losses) and Fair Value of 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, 2021 and 2022: At March 31, 2021: 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 ¥ 35,166,245 ¥ 147,844 ¥ 40,878 ¥ 35,273,211 Japanese prefectural and municipal bonds 3,719,205 15,123 2,815 3,731,513 Foreign government and official institution bonds 2,854,037 84,707 11,781 2,926,963 Corporate bonds 1,123,271 11,400 401 1,134,270 Residential mortgage-backed securities 1,459,062 9,119 1,051 1,467,130 Commercial mortgage-backed securities 435,975 29,502 912 464,565 Asset-backed securities 1,373,450 11,685 650 1,384,485 Other debt securities 168,528 3,780 730 171,578 Commercial paper 564,072 31 5 564,098 Total ¥ 46,863,845 ¥ 313,191 ¥ 59,223 ¥ 47,117,813 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 1,100,447 ¥ 23,033 ¥ — ¥ 1,123,480 Foreign government and official institution bonds 233,883 2,262 2,795 233,350 Residential mortgage-backed securities 411,024 18,590 — (1) 429,614 Commercial mortgage-backed securities 111,750 4,846 — (1) 116,596 Asset-backed securities 2,046,659 1,721 12,277 2,036,103 Total ¥ 3,903,763 ¥ 50,452 ¥ 15,072 ¥ 3,939,143 Note: (1) MUFG Americas Holdings reclassified residential mortgage-backed securities and commercial mortgage-backed securities from Available-for-sale debt securities to Held-to-maturity debt securities. As a result of the reclassification of residential mortgage-backed securities and commercial mortgage-backed securities, the unrealized losses before taxes at the date of reclassification remaining in Accumulated OCI in the accompanying consolidated balance sheets were ¥4,849 million and ¥1,920 million, respectively, at March 31, 2021 and are not included in the table above. 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
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 cost Fair value Fair value (in millions) Due in one year or less ¥ 7,645 ¥ 7,647 ¥ 23,510,044 Due from one year to five years 1,243,939 1,257,188 11,252,103 Due from five years to ten years 2,251,995 2,250,937 6,191,452 Due after ten years 1,091,530 1,090,533 4,844,843 Total ¥ 4,595,109 ¥ 4,606,305 ¥ 45,798,442
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, 2021 and 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, 2021: Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Number of securities (in millions, except number of securities) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 12,098,437 ¥ 31,055 ¥ 429,235 ¥ 9,823 ¥ 12,527,672 ¥ 40,878 286 Japanese prefectural and municipal bonds 870,007 1,584 276,172 1,231 1,146,179 2,815 405 Foreign government and official institution bonds 429,204 11,768 50,478 13 479,682 11,781 71 Corporate bonds 96,582 166 229,518 235 326,100 401 120 Residential mortgage-backed securities 378,351 577 139,214 474 517,565 1,051 218 Commercial mortgage-backed securities 36,633 905 2,616 7 39,249 912 21 Asset-backed securities 190,795 394 49,428 256 240,223 650 89 Other debt securities 22,812 91 22,388 639 45,200 730 17 Commercial paper 116,016 5 — — 116,016 5 8 Total ¥ 14,238,837 ¥ 46,545 ¥ 1,199,049 ¥ 12,678 ¥ 15,437,886 ¥ 59,223 1,235 Less than 12 months 12 months or more Total At March 31, 2022: Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses 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
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 March 31, 2020, 2021 and 2022: Fiscal years ended March 31, 2020 2021 2022 (in millions) Net gains (losses) recognized during the period (1) ¥ (639,813) ¥ 1,467,763 ¥ (125,271) Less: Net gains (losses) recognized during the period on equity securities sold during the period (37,541) 47,775 (38,042) Net unrealized gains (losses) recognized during the reporting period still held at the reporting date ¥ (602,272) ¥ 1,419,988 ¥ (87,229) Note:
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, 2021 and 2022: 2021 2022 (in millions) Measurement alternative balance ¥ 356,074 ¥ 310,570
Related Adjustments for Nonmarketable Equity Securities	The related adjustments for these securities for the fiscal years ended March 31, 2020, 2021 and 2022 were as follows: Fiscal years ended March 31, 2020 2021 2022 (in millions) Measurement alternative impairment losses (1)(4) ¥ (3,099) ¥ (5,188) ¥ (4,299) Measurement alternative downward changes for observable prices (1)(2)(3)(5) ¥ (953) ¥ — ¥ — Measurement alternative upward changes for observable prices (1)(2)(3)(6) ¥ 6,223 ¥ 21,710 ¥ 3,067 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, 2021 and 2022 were ¥10,102 million and ¥12,354 million respectively. (5) The cumulative downward changes for observable prices at March 31, 2021 and 2022 were ¥953 million and ¥954 million, respectively.

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	12 Months Ended
	Mar. 31, 2022
Receivables [Abstract]
Financing Receivable, Past Due	The table below presents total outstanding loans and past due analysis by class at March 31, 2021 and 2022. Past Due At March 31, 2021: 1-3 months Greater Total Current Loans Total Past Due 90 Days and (in millions) Commercial Domestic ¥ 4,763 ¥ 22,996 ¥ 27,759 ¥ 54,605,452 ¥ 47,632 ¥ 54,680,843 ¥ 4,673 Foreign 7,302 22,473 29,775 31,262,476 194,696 31,486,947 91 Residential 39,577 28,375 67,952 13,114,863 — 13,182,815 11,150 Card 2,127 26,786 28,913 450,383 22,945 502,241 — MUAH 42,082 29,337 71,419 8,424,325 87,822 8,583,566 4,626 Krungsri 131,573 127,533 259,106 6,345,539 — 6,604,645 — Other 21,776 24,201 45,977 940,711 — 986,688 — Total ¥ 249,200 ¥ 281,701 ¥ 530,901 ¥ 115,143,749 ¥ 353,095 ¥ 116,027,745 ¥ 20,540 Unearned income, unamortized premiums—net and deferred loan fees—net (308,882) Total ¥ 115,718,863 Past Due At March 31, 2022: 1-3 months Greater Total Current Loans Total Past Due 90 Days and Accruing (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
Nonaccrual Loans by Class	The information on nonaccrual loans by class at March 31, 2021 and 2022, and recognized interest income on nonaccrual loans by class for the fiscal years ended March 31, 2021 and 2022 are shown below: Recorded Loan Balance March 31, 2021: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) Recognized (in millions) Commercial Domestic ¥ 565,671 ¥ 111,141 ¥ 4,355 Foreign 258,391 96,833 5,110 Residential 67,968 4,720 923 Card 60,200 — 37 MUAH 73,706 30,242 1,057 Krungsri 161,338 3,042 5,562 Other 26,567 29 4,203 Total ¥ 1,213,841 ¥ 246,007 ¥ 21,247 Recorded Loan Balance March 31, 2022: Nonaccrual Loans (1) Nonaccrual Loans Not Requiring an Allowance for Credit Losses (2) Recognized Interest Income (in millions) Commercial Domestic ¥ 633,768 ¥ 109,919 ¥ 6,532 Foreign 224,566 84,837 4,734 Residential 56,175 3,579 811 Card 62,578 — 25 MUAH 15,349 — 77 Krungsri 165,775 2,824 4,076 Other 26,618 7 3,688 Total ¥ 1,184,829 ¥ 201,166 ¥ 19,943 Notes: (1) Nonaccrual loans in the above table do not include loans held for sale of ¥8,562 million and ¥7,946 million at March 31, 2021 and 2022, respectively.
TDRs by Class	The following table summarizes the MUFG Group’s TDRs by class for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 Troubled Debt Restructurings Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment (in millions) Commercial (1)(3) Domestic ¥ 61,735 ¥ 61,735 ¥ 39,282 ¥ 39,282 ¥ 168,348 ¥ 167,342 Foreign 39,827 39,827 33,839 33,839 16,144 16,144 Loans acquired with deteriorated credit quality 10,786 10,786 — — — — Residential (1)(3) 5,137 5,137 18,121 18,121 22,484 22,484 Card (2)(3) 22,625 21,561 20,857 19,737 20,937 19,824 MUAH (2)(3) 33,782 33,564 22,801 22,763 11,384 11,384 Krungsri (2)(3) 31,238 31,209 18,548 18,548 14,869 14,869 Other (2)(3) 12,781 12,780 24,968 24,956 11,403 11,403 Total ¥ 217,911 ¥ 216,599 ¥ 178,416 ¥ 177,246 ¥ 265,569 ¥ 263,450 2020 2021 2022 Troubled Debt Restructurings That Subsequently defaulted Recorded Investment (in millions) Commercial (1)(3) Domestic ¥ 8,857 ¥ 16,179 ¥ 12,020 Foreign 2,337 9,861 13,180 Residential (1)(3) 31 157 203 Card (2)(3) 3,320 2,733 2,746 MUAH (2)(3) 4,656 3,437 — Krungsri (2)(3) 7,305 6,226 5,657 Other (2)(3) 15 857 4,715 Total ¥ 26,521 ¥ 39,450 ¥ 38,521 Notes: (1) TDRs for the Commercial and Residential segments include accruing loans, and do not include nonaccrual loans. (2) TDRs for the Card, MUFG Americas Holdings, Krungsri and Other segments include accrual and nonaccrual loans.
Credit Quality Indicators of Loans by Class	Credit quality indicators of loans and fiscal year of origination by class at March 31, 2021 and 2022 are shown below: Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Total (1) At March 31, 2021 2020 2019 2018 2017 2016 Prior (in millions) Commercial: ¥ 29,805,641 ¥ 10,256,709 ¥ 9,410,172 ¥ 5,360,221 ¥ 4,736,515 ¥ 6,945,092 ¥ 19,401,336 ¥ 9,776 ¥ 85,925,462 Domestic 22,402,694 6,392,946 6,126,746 3,840,964 3,649,145 5,286,408 6,934,308 — 54,633,211 Normal 21,936,776 6,058,126 5,915,318 3,666,734 3,551,332 4,847,597 6,604,586 — 52,580,469 Close Watch 431,223 319,073 195,630 162,176 74,698 317,622 306,236 — 1,806,658 Likely to become Bankrupt or Legally/Virtually Bankrupt 34,695 15,747 15,798 12,054 23,115 121,189 23,486 — 246,084 Foreign 7,402,947 3,863,763 3,283,426 1,519,257 1,087,370 1,658,684 12,467,028 9,776 31,292,251 Normal 7,158,793 3,704,240 3,155,261 1,423,064 1,032,052 1,534,943 12,231,018 9,776 30,249,147 Close Watch 200,305 118,027 91,867 60,422 51,433 69,436 197,405 — 788,895 Likely to become Bankrupt or Legally/Virtually Bankrupt 43,849 41,496 36,298 35,771 3,885 54,305 38,605 — 254,209 Residential ¥ 623,328 ¥ 847,314 ¥ 822,883 ¥ 892,166 ¥ 1,304,110 ¥ 8,660,022 ¥ 32,984 ¥ 8 ¥ 13,182,815 Accrual 623,035 846,787 822,411 891,407 1,302,427 8,599,621 30,897 — 13,116,585 Nonaccrual 293 527 472 759 1,683 60,401 2,087 8 66,230 Card ¥ 14 ¥ 96 ¥ 171 ¥ 304 ¥ 110 ¥ 513 ¥ 417,804 ¥ 60,284 ¥ 479,296 Accrual 1 10 13 19 7 79 404,301 14,666 419,096 Nonaccrual 13 86 158 285 103 434 13,503 45,618 60,200 MUAH ¥ 1,406,996 ¥ 1,366,930 ¥ 915,570 ¥ 861,742 ¥ 770,568 ¥ 1,291,561 ¥ 1,882,377 ¥ — ¥ 8,495,744 Credit Quality Based on the Number of Delinquencies Accrual 472,892 608,580 324,369 552,380 516,051 656,087 130,514 — 3,260,873 Nonaccrual — 725 518 1,139 1,035 14,801 828 — 19,046 Credit Quality Based on Internal Credit Ratings Pass 920,959 707,841 486,354 287,316 236,715 542,634 1,625,799 — 4,807,618 Special Mention 4,865 31,361 49,784 14,904 9,522 30,015 76,487 — 216,938 Classified 8,280 18,423 54,545 6,003 7,245 48,024 48,749 — 191,269 Krungsri ¥ 1,316,031 ¥ 1,197,815 ¥ 958,241 ¥ 506,919 ¥ 285,427 ¥ 402,752 ¥ 1,922,946 ¥ 14,514 ¥ 6,604,645 Performing 1,251,246 1,086,710 855,915 434,818 241,811 314,114 1,754,840 — 5,939,454 Under-Performing 52,821 85,408 74,848 57,314 31,886 57,129 144,447 — 503,853 Non-Performing 11,964 25,697 27,478 14,787 11,730 31,509 23,659 14,514 161,338 Other ¥ 338,342 ¥ 164,650 ¥ 84,115 ¥ 37,394 ¥ 11,030 ¥ 8,538 ¥ 342,619 ¥ — ¥ 986,688 Accrual 335,830 159,363 79,608 35,366 10,556 8,201 331,197 — 960,121 Nonaccrual 2,512 5,287 4,507 2,028 474 337 11,422 — 26,567 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis 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 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 by portfolio segment for the fiscal years ended March 31, 2020, 2021 and 2022 are shown below: Fiscal year ended March 31, 2020: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of fiscal year ¥ 389,615 ¥ 38,626 ¥ 32,550 ¥ 52,581 ¥ 144,812 ¥ — ¥ 658,184 Provision for (reversal of) credit losses 153,782 (1,028) 26,542 30,825 70,023 41,569 321,713 Charge-offs 85,326 3,227 25,149 27,934 77,907 23,592 243,135 Recoveries collected 26,427 375 1,237 4,173 23,170 8,476 63,858 Net charge-offs 58,899 2,852 23,912 23,761 54,737 15,116 179,277 Other (1) (2,223) — — (650) 9,528 2,265 8,920 Balance at end of fiscal year ¥ 482,275 ¥ 34,746 ¥ 35,180 ¥ 58,995 ¥ 169,626 ¥ 28,718 ¥ 809,540 Fiscal year ended March 31, 2021: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of fiscal year ¥ 482,275 ¥ 34,746 ¥ 35,180 ¥ 58,995 ¥ 169,626 ¥ 28,718 ¥ 809,540 Effect of adopting new guidance on measurement of credit losses on financial instruments (2) 83,828 49,494 14,262 25,037 118,333 32,750 323,704 Provision for credit losses 235,584 1,385 17,876 90,064 90,167 49,134 484,210 Charge-offs 77,904 2,745 24,564 40,376 93,192 51,725 290,506 Recoveries collected 9,262 13 1,463 4,362 23,415 6,567 45,082 Net charge-offs 68,642 2,732 23,101 36,014 69,777 45,158 245,424 Other (1) 1,532 — — (6,327) (14,953) (3,891) (23,639) Balance at end of fiscal year ¥ 734,577 ¥ 82,893 ¥ 44,217 ¥ 131,755 ¥ 293,396 ¥ 61,553 ¥ 1,348,391 Fiscal year ended March 31, 2022: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of fiscal year ¥ 734,577 ¥ 82,893 ¥ 44,217 ¥ 131,755 ¥ 293,396 ¥ 61,553 ¥ 1,348,391 Provision for (reversal of) credit losses 236,659 (10,899) 15,473 (101,112) 90,514 47,360 277,995 Charge-offs 57,848 2,121 20,153 19,208 83,474 55,208 238,012 Recoveries collected 11,898 14 1,231 9,532 22,890 13,150 58,715 Net charge-offs 45,950 2,107 18,922 9,676 60,584 42,058 179,297 Other (1) 8,800 — — 9,398 (940) 6,354 23,612 Balance at end of fiscal year ¥ 934,086 ¥ 69,887 ¥ 40,768 ¥ 30,365 ¥ 322,386 ¥ 73,209 ¥ 1,470,701 Notes: (1) Other is principally comprised of gains or losses from foreign exchange translation. (2) See Note 1 for more information.

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Mar. 31, 2022
Property, Plant and Equipment [Abstract]
Components of Premises and Equipment	Premises and equipment at March 31, 2021 and 2022 consisted of the following: 2021 2022 (in millions) Land ¥ 379,560 ¥ 372,710 Buildings 765,341 766,945 Equipment and furniture 564,273 497,478 Leasehold improvements 303,164 255,679 Construction in progress 46,513 30,894 Total 2,058,851 1,923,706 Less accumulated depreciation 1,183,859 1,107,877 Premises and equipment-net ¥ 874,992 ¥ 815,829

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Movement in Carrying Amount of Goodwill by Business Segment	The table below presents the movement in the carrying amount of goodwill by business segment during the fiscal years ended March 31, 2021 and 2022: Global Corporate & Investment Banking Business Group Global Commercial Banking Business Group Asset Management & Investor Services Business Group Global Markets Business Group Total (in millions) Balance at March 31, 2020: Goodwill ¥ 138,538 ¥ 738,645 ¥ 214,071 ¥ 2,300 ¥ 1,093,554 Accumulated impairment losses (2) (32,868) (528,692) (14,368) — (575,928) 105,670 209,953 199,703 2,300 517,626 Goodwill acquired during the fiscal year (1) 1,105 — 4,164 — 5,269 Impairment loss (30,525) (117,039) — — (147,564) Foreign currency translation adjustments and other 456 (10,001) 5,066 — (4,479) Balance at March 31, 2021: Goodwill 140,099 728,644 223,301 2,300 1,094,344 Accumulated impairment losses (63,393) (645,731) (14,368) — (723,492) ¥ 76,706 ¥ 82,913 ¥ 208,933 ¥ 2,300 ¥ 370,852 Foreign currency translation adjustments and other 4,694 7,358 12,493 — 24,545 Balance at March 31, 2022: Goodwill 144,793 736,002 235,794 2,300 1,118,889 Accumulated impairment losses (63,393) (645,731) (14,368) — (723,492) Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank (3) (2,415) (89,371) — — (91,786) ¥ 78,985 ¥ 900 ¥ 221,426 ¥ 2,300 ¥ 303,611 Notes: (1) See Note 2 for the goodwill acquired in connection with acquisitions. (2) Effective April 1, 2018, the MUFG Group reorganized its business groups. Goodwill originally recognized for Retail Banking Business Group, Corporate Banking Business Group, Trust Assets Business Group and Global Business Group other than MUAH and Krungsri was ¥1,900,019 million, which has been fully impaired before April 1, 2017. As these impairment losses recorded in past before the reorganization of the segment and are irrelevant to the annual impairment test under the new segment, the accumulated impaired loss is not allocated to new business segments after the reorganization of business group. (3) Represents goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank, which is included in Other assets in the accompanying consolidated balance sheet at March 31, 2022. See Notes 2 for more information.
Carrying Amount of Other Intangible Assets by Major Class	The table below presents the gross carrying amount, accumulated amortization and net carrying amount, in total and by major class of other intangible assets at March 31, 2021 and 2022: 2021 2022 Gross carrying amount Accumulated amortization Net carrying amount Gross carrying amount Accumulated amortization Net carrying amount (in millions) Intangible assets subject to amortization: Software ¥ 3,025,769 ¥ 2,249,340 ¥ 776,429 ¥ 3,169,332 ¥ 2,380,861 ¥ 788,471 Customer relationships 555,796 290,641 265,155 528,969 282,324 246,645 Core deposit intangibles 164,979 102,958 62,021 114,059 58,972 55,087 Trade names 92,422 41,629 50,793 76,858 36,846 40,012 Other 16,136 5,640 10,496 15,194 4,859 10,335 Total ¥ 3,855,102 ¥ 2,690,208 1,164,894 ¥ 3,904,412 ¥ 2,763,862 1,140,550 Intangible assets not subject to amortization: Other (1) 20,100 8,051 Total ¥ 1,184,994 ¥ 1,148,601
Estimated Aggregate Amortization Expense for Intangible Assets for Next Five Fiscal Years	The estimated aggregate amortization expense for intangible assets for the next five fiscal years is as follows: (in millions) Fiscal year ending March 31: 2023 ¥ 270,745 2024 232,942 2025 190,321 2026 142,645 2027 99,395

Lease Transactions (Tables)

Lease Transactions (Tables)	12 Months Ended
	Mar. 31, 2022
Leases [Abstract]
Profit or Loss of Lease Transactions as a Lessee	The following table presents profit or loss of lease transactions as a lessee for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Finance lease cost: Amortization of right-of-use assets ¥ 5,455 ¥ 4,971 ¥ 4,816 Interest on lease liabilities 460 240 198 Operating lease cost 99,939 91,276 81,206
Information of Lease Transactions as a Lessee	The following table presents information of lease transactions as a lessee for the fiscal years ended March 31, 2021 and 2022: 2021 2022 (in millions, except years and percentages) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases ¥ 331 ¥ 262 Operating cash flows from operating leases 102,982 107,047 Financing cash flows from finance leases 7,709 7,426 Right-of-use assets obtained in exchange for new finance lease liabilities 3,487 4,055 Right-of-use assets obtained in exchange for new operating lease liabilities 50,564 48,095 Weighted-average remaining lease term: Finance leases 4.1 years 3.6 years Operating leases 8.3 years 8.0 years Weighted-average discount rate: Finance leases 0.87 % 0.77 % Operating leases 0.97 % 0.76 %
Maturities of Lease Liabilities as a Leasee	Maturities of lease liabilities as of March 31, 2022 are as follows: Finance leases Operating leases (in millions) 2023 ¥ 6,250 ¥ 89,016 2024 4,583 70,274 2025 2,395 51,582 2026 1,532 40,012 2027 839 28,138 2028 and thereafter 916 124,388 Total undiscounted cash flows 16,515 403,410 Difference between undiscounted and discounted cash flows (411) (19,227) Amount on balance sheet ¥ 16,104 ¥ 384,183
Profit or Loss of Lease Transactions as a Lessor	The following table presents profit or loss of lease transactions as a lessor for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Sales type and direct financing leases: Finance income on net investment ¥ 119,010 ¥ 122,810 ¥ 116,430 Operating leases: Lease income 7,856 3,663 4,202 Total ¥ 126,866 ¥ 126,473 ¥ 120,632
Component of Direct Financing Lease Transactions	The following table presents the components of sales type and direct financing leases transactions as of March 31, 2021 and 2022. 2021 2022 (in millions) Lease receivables (undiscounted) ¥ 1,913,852 ¥ 1,855,125 Adjustments: Discounted unguaranteed residual value 15,435 12,439 Initial direct cost on sales type and direct financing leases 27,869 27,695 Deferred selling profit (313,784) (306,316) Net investment in sales type and direct financing leases ¥ 1,643,372 ¥ 1,588,943
Maturity of the Lease Payment Receivables of Direct Financing Lease Transactions	The following table presents maturity of the lease payment receivables of sales type and direct financing lease transactions as of March 31, 2022: Lease receivables (in millions) 2023 ¥ 452,739 2024 428,280 2025 348,436 2026 264,847 2027 170,471 2028 and thereafter 190,352 Total undiscounted cash flows 1,855,125 Difference between undiscounted cash flows and the lease receivables recognized on balance sheet (266,182) Amount on balance sheet ¥ 1,588,943

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income before Income Tax Expense by Jurisdiction	Income (loss) before income tax expense (benefit) by jurisdiction for the fiscal years ended March 31, 2020, 2021 and 2022 was as follows: 2020 2021 2022 (in millions) Domestic income (loss) ¥ 89,440 ¥ 575,101 ¥ (886,921) Foreign income 343,780 1,033,241 828,194 Total ¥ 433,220 ¥ 1,608,342 ¥ (58,727)
Details of Current and Deferred Income Tax Expense (Benefit)	The detail of current and deferred income tax expense (benefit) for the fiscal years ended March 31, 2020, 2021 and 2022 was as follows: 2020 2021 2022 (in millions) Current: Domestic ¥ 28,128 ¥ 95,183 ¥ 243,993 Foreign 147,344 83,492 112,164 Total 175,472 178,675 356,157 Deferred: Domestic (18,949) 310,490 (308,214) Foreign (42,018) (44,217) (62,454) Total (60,967) 266,273 (370,668) Income tax expense (benefit) 114,505 444,948 (14,511) Income tax expense (benefit) reported in Accumulated OCI relating to: Investment securities (29,747) 1,146 (87,628) Debt valuation adjustments 23,908 (36,792) 10,296 Derivatives qualifying for cash flow hedges 4,012 12,244 (4,968) Defined benefit plans (57,685) 139,883 19,039 Foreign currency translation adjustments (20,693) (3,368) 96,742 Total (80,205) 113,113 33,481 Total ¥ 34,300 ¥ 558,061 ¥ 18,970
Reconciliation of Effective Income Tax Rate	A reconciliation of the effective income tax rates reflected in the accompanying consolidated statements of operations to the combined normal effective statutory tax rates for the fiscal years ended March 31, 2020, 2021 and 2022 is as follows: 2020 2021 2022 Combined normal effective statutory tax rate 30.6 % 30.6 % 30.6 % Nondeductible expenses 1.2 0.3 (12.0) Impairment of goodwill 26.1 2.4 — Foreign tax credit and payments (9.2) (0.9) 28.7 Lower tax rates applicable to income of subsidiaries (3.2) (1.0) 30.8 Change in valuation allowance 7.9 (0.9) (90.1) Realization of previously unrecognized tax effects of subsidiaries (19.8) (1) — — Nontaxable dividends received (15.6) (1.9) 85.1 Undistributed earnings of subsidiaries 3.6 — (25.6) Tax and interest expense for uncertainty in income taxes — (0.1) (10.8) Noncontrolling interest income (loss) (0.1) 0.1 (0.7) Effect of changes in tax laws — (0.1) (2.4) Expiration of loss carryforward 1.9 0.1 (7.0) Other—net 3.0 (0.9) (1.9) Effective income tax rate 26.4 % 27.7 % 24.7 % Note:
Components of Net Deferred Tax Assets	The tax effects of the items comprising the MUFG Group’s net deferred tax assets at March 31, 2021 and 2022 were as follows: 2021 2022 (in millions) Deferred tax assets: Allowance for credit losses ¥ 462,369 ¥ 462,303 Operating loss carryforwards 97,844 99,566 Loans 790 37 Accrued liabilities and other 300,942 309,017 Premises and equipment 117,322 124,419 Derivative financial instruments 69,039 154,237 Obligations under operating leases 132,443 106,864 Valuation allowance (137,503) (184,932) Total deferred tax assets 1,043,246 1,071,511 2021 2022 (in millions) Deferred tax liabilities: Investment securities (including trading account assets at fair value under the fair value option) 1,017,131 605,443 Intangible assets 70,575 69,276 Lease transactions 48,519 47,432 Defined benefit plans 81,282 102,998 Investments in subsidiaries and affiliates 338,713 506,829 Right-of-use assets of operating leases 100,260 77,274 Other 92,306 113,335 Total deferred tax liabilities 1,748,786 1,522,587 Net deferred tax assets (liabilities) ¥ (705,540) ¥ (451,076)
Operating Loss Carryforwards and Tax Credit Carryforwards	Such carryforwards, if not utilized, are scheduled to expire as follows: Operating loss carryforwards Tax credit carryforwards (in millions) Fiscal year ending March 31: 2023 ¥ 4,881 ¥ 458 2024 5,145 328 2025 84,109 188 2026 53,634 94 2027 543 151 2028 — 55 2029 and thereafter 24,022 45,367 No definite expiration date 40,263 7,421 Total ¥ 212,597 ¥ 54,062
Roll-forward of Unrecognized Tax Benefits	The following is a roll-forward of the MUFG Group’s unrecognized tax benefits for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Balance at beginning of fiscal year ¥ 19,160 ¥ 19,249 ¥ 13,829 Gross amount of increases for current year’s tax positions 399 202 28 Gross amount of decreases for current year’s tax positions — (1,919) — Gross amount of increases for prior years’ tax positions 212 489 6,320 Gross amount of decreases for prior years’ tax positions — (2,329) (183) Net amount of changes relating to settlements with tax authorities (81) — — Decreases due to lapse of applicable statutes of limitations (297) (116) (8) Foreign exchange translation and other (144) (1,747) 1,808 Balance at end of fiscal year ¥ 19,249 ¥ 13,829 ¥ 21,794
Roll-forward of Interest and Penalties Recognized	The following is a roll-forward of the interest and penalties recognized in the accompanying consolidated financial statements for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Balance at beginning of fiscal year ¥ 3,056 ¥ 2,612 ¥ 2,417 Total interest and penalties in the consolidated statements of operations (398) (398) 156 Total cash settlements, foreign exchange translation and other (46) 203 275 Balance at end of fiscal year ¥ 2,612 ¥ 2,417 ¥ 2,848
Status of Years under Audit or Open to Examination by Major Tax Jurisdictions	The following are the major tax jurisdictions in which the MUFG Group operates and the status of years under audit or open to examination: Jurisdiction Tax years Japan 2021 and forward United States—Federal 2019 and forward United States—California 2015 and forward Indonesia 2018 and forward

Pledged Assets and Collateral (

Pledged Assets and Collateral (Tables)	12 Months Ended
	Mar. 31, 2022
Financial Instruments Pledged as Collateral [Abstract]
Assets Mortgaged Pledged or Otherwise Subject to Lien	At March 31, 2022, assets mortgaged, pledged, or otherwise subject to lien were as follows: 2022 (in millions) Trading account securities ¥ 11,951,845 Investment securities 21,594,409 Loans 11,718,468 Other 317,444 Total ¥ 45,582,166
Pledged Assets Classified by Type of Liabilities	The above pledged assets were classified by type of liabilities to which they related as follows: 2022 (in millions) Deposits ¥ 310,450 Payables under repurchase agreements and securities lending transactions 15,383,440 Other short-term borrowings and long-term debt 29,857,428 Other 30,848 Total ¥ 45,582,166

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Mar. 31, 2022
Deposits [Abstract]
Time Deposits by Maturity	The maturity information at March 31, 2022 for domestic and foreign time deposits, including CDs, is summarized as follows: Domestic Foreign (in millions) Due in one year or less ¥ 31,917,457 ¥ 24,814,801 Due after one year through two years 4,230,918 210,799 Due after two years through three years 2,456,467 125,802 Due after three years through four years 604,082 89,178 Due after four years through five years 503,677 41,565 Due after five years 750,898 60,812 Total ¥ 40,463,499 ¥ 25,342,957

Call Money and Funds Purchased

Call Money and Funds Purchased (Tables)	12 Months Ended
	Mar. 31, 2022
Call Money And Funds Purchased [Abstract]
Summary of Funds Transactions	A summary of funds transactions for the fiscal years ended March 31, 2021 and 2022 is as follows: 2021 2022 (in millions, except percentages and days) Outstanding at end of fiscal year: Amount ¥ 2,353,830 ¥ 2,416,313 Principal range of maturities 1 day to 30 days 1 day to 30 days Weighted average interest rate 0.04 % 0.06 %

Due to Trust Account, Short-t_2

Due to Trust Account, Short-term Borrowings and Long-term Debt (Tables)	12 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Summary of Due to Trust Account Transactions	A summary of due to trust account transactions at March 31, 2021 and 2022 is as follows: 2021 2022 (in millions, except percentages) Amount outstanding at end of fiscal year ¥ 3,891,831 ¥ 6,307,463 Weighted average interest rate on outstanding balance at end of fiscal year 0.00 % 0.00 %
Components of Other Short-term Borrowings	Other short-term borrowings at March 31, 2021 and 2022 were comprised of the following: 2021 2022 (in millions, except percentages) Domestic offices: Commercial paper ¥ 1,207,610 ¥ 1,491,509 Borrowings from the Bank of Japan 9,238,209 10,231,483 Borrowings from other financial institutions 141,060 68,384 Other 126,060 810,849 (1) Total domestic offices 10,712,939 12,602,225 Foreign offices: Commercial paper 3,281,866 3,776,737 Borrowings from other financial institutions 113,874 82,914 Short-term debentures 7,775 22,059 Other 71,306 59,287 Total foreign offices 3,474,821 3,940,997 Total 14,187,760 16,543,222 Less unamortized discount 37 85 Other short-term borrowings—net ¥ 14,187,723 ¥ 16,543,137 Weighted average interest rate on outstanding balance at end of fiscal year 0.06 % 0.09 % Note: (1) Other include borrowings from the jointly operated designated money in trusts.
Components of Long-term Debt	Long-term debt (with original maturities of more than one year) at March 31, 2021 and 2022 was comprised of the following: 2021 2022 (in millions) MUFG: Obligations under finance leases ¥ 4,989 ¥ 3,326 Unsubordinated debt (1) : Fixed rate bonds, payable in US dollars, due 2022-2039, principally 0.85%-4.29% 4,224,401 5,501,311 Fixed rate bonds, payable in Euro, due 2023-2033, principally 0.34%-1.75% 482,856 508,524 Fixed rate bonds, payable in other currencies, due 2024-2029, principally 2.08%-4.05% (2) 34,262 37,424 Adjustable rate bonds, payable in Japanese yen, due 2025-2032, principally 0.14%-0.42% — 95,900 Adjustable rate bonds, payable in Euro, due 2027, principally 0.34% — 68,350 Floating rate bonds, payable in US dollars, due 2022-2023, principally 1.05%-1.24% 669,464 416,171 Floating rate bonds, payable in Euro, due 2023, principally 0.02% 45,430 47,845 Floating rate bonds, payable in other currencies, due 2024, principally 1.31% (2) 33,744 36,800 Total 5,490,157 6,712,325 Subordinated debt (1) : Fixed rate bonds, payable in Japanese yen, due 2024-2031, principally 0.37%-1.39% 776,886 771,014 Adjustable rate bonds, payable in Japanese yen, due 2027-2031, principally 0.29%-0.58% 1,072,209 905,925 Adjustable rate bonds, payable in Japanese yen, no stated maturity, principally 0.82%-2.50% 1,704,816 1,486,734 Adjustable rate borrowings, payable in Japanese yen, due 2028-2029, principally 0.30%-0.46% 31,500 31,500 Adjustable rate borrowings, payable in Japanese yen, no stated maturity, principally 0.85%-1.17% 87,085 86,725 Floating rate borrowings, payable in Japanese yen, due 2025-2028, principally 0.57%-0.79% 86,000 86,000 Total 3,758,496 3,367,898 Total 9,253,642 10,083,549 MUFG Bank: Obligations under finance leases ¥ 4,628 ¥ 4,419 Unsubordinated debt (1) : Fixed rate bonds, payable in Japanese yen, due 2022-2027, principally 0.63%-2.34% 123,300 72,400 Fixed rate bonds, payable in US dollars, due 2023-2052, principally 0.00%-4.70% 1,041,115 1,052,443 Fixed rate bonds, payable in Euro, due 2033, principally 1.81% 109,619 6,152 Fixed rate bonds, payable in other currencies, due 2047, principally 0.00% (2) 3,100 — Fixed rate borrowings, payable in Japanese yen, due 2022-2028, principally 0.00%-0.25% 18,689,074 18,582,830 Fixed rate borrowings, payable in US dollars, due 2026-2030, principally 0.72%-2.93% 7,833 8,371 Floating rate borrowings, payable in US dollars, due 2022-2031, principally 0.16%-4.45% 721,941 714,718 Floating rate borrowings, payable in Euro, due 2025-2036, principally 0.00%-0.40% 111,611 103,231 Total 20,807,593 20,540,145 Subordinated debt (1) : Fixed rate bonds, payable in Japanese yen, due 2022-2031, principally 1.39%-2.91% 350,900 236,000 Fixed rate borrowings, payable in Japanese yen, due 2022-2035, principally 0.43%-2.24% 73,400 71,000 Adjustable rate borrowings, payable in Japanese yen, due 2028, principally 1.06% 10,000 10,000 Floating rate borrowings, payable in Japanese yen, due 2027, principally 0.25% 15,000 15,000 Total 449,300 332,000 Obligations under loan securitization transaction accounted for as secured borrowings due 2022-2080, principally 0.13%-10.00% 618,072 519,718 Total 21,879,593 21,396,282 2021 2022 (in millions) Other subsidiaries: Obligations under finance leases ¥ 10,520 ¥ 8,359 Unsubordinated debt (1) : Fixed rate borrowings, bonds and notes, payable in Japanese yen, due 2022-2051, principally 0.00%-17.30% 878,276 1,088,884 Fixed rate borrowings, bonds and notes, payable in US dollars, due 2022-2036, principally 0.00%-21.50% 885,950 124,841 Fixed rate borrowings, bonds and notes, payable in Euro, due 2024-2030, principally 0.00% 2,719 10,796 Fixed rate borrowings, bonds and notes, payable in Thai baht, due 2022-2028, principally 0.00%-7.15% 349,666 230,630 Fixed rate borrowings, bonds and notes, payable in other currencies, due 2022-2037, principally 0.00%-9.50% (2) 320,663 306,778 Floating/Adjustable rate borrowings, bonds and notes, payable in Japanese yen, due 2022-2052, principally 0.00%-65.00% 1,007,882 1,000,691 Floating/Adjustable rate borrowings, bonds and notes, payable in US dollars, due 2022-2032, principally 0.00%-53.50% 174,997 130,597 Floating/Adjustable rate bonds and notes, payable in Euro, due 2022-2024, principally 0.00%-3.00% 1,092 230 Total 3,621,245 2,893,447 Subordinated debt (1) : Fixed rate borrowings, bonds and notes, payable in Japanese yen, due 2022-2030, principally 1.36%-2.61% 184,894 114,946 Fixed rate bonds and notes, payable in US dollars, due 2022-2030, principally 7.50%-9.90% 1,212 2,262 Fixed rate bonds and notes, payable in Thai baht, due 2027-2031, principally 3.00%-3.90% 209,189 208,581 Fixed rate bonds and notes, payable in other currencies, due 2021, principally 0.00% (2) 6,915 — Floating rate bonds and notes, payable in US dollars, due 2028, principally 6.90% 3,820 2,866 Total 406,030 328,655 Obligations under loan securitization transaction accounted for as secured borrowings due 2022, principally 2.25% 11 1 Total 4,037,806 3,230,462 Total 35,171,041 34,710,293 Debt issuance cost ¥ (13,390) ¥ (13,694) Total ¥ 35,157,651 ¥ 34,696,599 Notes: (1) Adjustable rate debts are debts where interest rates are reset in accordance with the terms of the debt agreements, and floating rate debts are debts where interest rates are repriced in accordance with movements of markets indices.
Summary of Subsequent Maturities of Long-term Debt	The following is a summary of maturities of long-term debt subsequent to March 31, 2022 : MUFG BK Other subsidiaries Total (in millions) Fiscal year ending March 31: 2023 ¥ 987,009 ¥ 981,284 ¥ 1,026,760 ¥ 2,995,053 2024 827,301 1,107,551 427,939 2,362,791 2025 1,060,164 16,551,665 398,353 18,010,182 2026 966,692 1,218,584 223,445 2,408,721 2027 414,824 156,907 186,208 757,939 2028 and thereafter 5,827,559 1,380,291 967,757 8,175,607 Total ¥ 10,083,549 ¥ 21,396,282 ¥ 3,230,462 ¥ 34,710,293

Severance Indemnities and Pen_2

Severance Indemnities and Pension Plans (Tables)	12 Months Ended
	Mar. 31, 2022
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost of Pension Benefits, SIPs and Other Benefits	Net periodic cost of pension benefits and other benefits for the fiscal years ended March 31, 2020, 2021 and 2022 include the following components: Domestic subsidiaries Foreign offices and subsidiaries 2020 2021 2022 2020 2021 2022 Pension benefits and SIP Pension benefits and SIP Pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits Pension benefits Other benefits (in millions) Service cost—benefits earned during the fiscal year ¥ 49,194 ¥ 46,861 ¥ 44,160 ¥ 14,406 ¥ 366 ¥ 13,947 ¥ 229 ¥ 16,853 ¥ 140 Interest cost on projected benefit obligation 10,969 11,091 11,995 17,370 1,159 14,295 793 11,233 494 Expected return on plan assets (74,744) (71,078) (81,902) (31,382) (1,882) (31,161) (2,118) (33,269) (2,415) Amortization of net actuarial loss 5,641 17,019 770 8,685 1,162 11,560 208 16,573 (64) Amortization of prior service cost (1,204) (1,205) (1,280) (2,633) (1,881) (2,614) (448) (2,802) (385) Loss (gain) on settlements and curtailment (2,366) (4,605) (5,820) 223 — 30 — 44 — Net periodic benefit cost (income) ¥ (12,510) ¥ (1,917) ¥ (32,077) ¥ 6,669 ¥ (1,076) ¥ 6,057 ¥ (1,336) ¥ 8,632 ¥ (2,230)
Summary of Assumptions Used in Computation	The following table summarizes the assumptions used in computing the present value of the projected benefit obligations and the net periodic benefit cost: Domestic subsidiaries Foreign offices and subsidiaries 2020 2021 2022 2020 2021 2022 Pension benefits and SIP Pension benefits and SIP Pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits Pension benefits Other benefits (in millions) Weighted-average assumptions used: Discount rates in determining expense 0.61 % 0.63 % 0.71 % 3.80 % 3.87 % 2.94 % 2.72 % 2.19 % 1.82 % Discount rates in determining benefit obligation 0.63 0.71 0.86 3.05 2.96 2.34 2.23 2.78 2.63 Rates of increase in future compensation level for determining expense 3.21 3.46 3.46 5.01 — 5.12 — 5.09 — Rates of increase in future compensation level for determining benefit obligation 3.46 3.46 3.46 5.12 — 5.09 — 5.04 — Expected rates of return on plan assets 2.89 2.93 2.89 6.25 7.00 6.19 7.00 5.91 7.00 Cash balance crediting rate for determining expense 2.46 2.46 2.46 3.03 — 2.39 — 1.62 — Cash balance crediting rate for determining benefit obligation 2.46 2.46 2.46 2.39 — 1.62 — 1.94 —
Assumed Health Care Cost Trend Rates and Effect of a One-percentage-point Change for Foreign Offices and Subsidiaries	The following tables present the assumed health care cost trend rates for foreign offices and subsidiaries, which are used to measure the expected cost of benefits for the next year: MUAH Other than MUAH 2021 (1) 2022 (1) 2021 (1) 2022 (1) Initial trend rate 4.17 % 4.13 % 6.50 % 6.50 % Ultimate trend rate 3.78 % 3.77 % 4.50 % 4.50 % Year the rate reaches the ultimate trend rate 2028 2029 2028 2029 Note:
Combined Funded Status and Amounts Recognized in Consolidated Balance Sheets	The following table sets forth the combined funded status and amounts recognized in the accompanying consolidated balance sheets at March 31, 2021 and 2022: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 Non-contributory pension benefits and SIP Non-contributory pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits (in millions) Change in benefit obligation: Benefit obligation at beginning of fiscal year ¥ 1,807,905 ¥ 1,753,483 ¥ 547,013 ¥ 32,383 ¥ 580,953 ¥ 31,354 Service cost 46,861 44,160 13,947 229 16,853 140 Interest cost 11,091 11,995 14,295 793 11,233 494 Plan participants’ contributions — — 30 440 — 433 Acquisitions/ Divestitures (2,845) (242) (260) — (130) — Amendments (22) (1,054) (1,187) — 402 — Actuarial loss (gain) (21,558) (28,814) 51,724 (1) 1,506 (24,611) (1) (2,269) Benefits paid (65,730) (65,853) (20,816) (2,488) (24,501) (2,580) Lump-sum payment (22,219) (21,570) (2,825) — (3,591) — Translation adjustments and other — — (20,968) (1,509) 63,131 3,219 Benefit obligation at end of fiscal year 1,753,483 1,692,105 580,953 31,354 619,739 30,791 Change in plan assets: Fair value of plan assets at beginning of fiscal year 2,432,847 2,858,013 559,508 31,919 604,404 33,349 Actual return on plan assets 472,185 77,848 82,615 5,165 49,277 4,619 Employer contributions 21,151 20,487 3,896 181 4,627 (116) Acquisitions/ Divestitures (2,440) 8 — — — — Plan participants’ contributions — — 30 440 — 433 Benefits paid (65,730) (65,853) (20,816) (2,488) (24,501) (2,580) Translation adjustments and other — — (20,829) (1,868) 72,057 3,823 Fair value of plan assets at end of fiscal year 2,858,013 2,890,503 604,404 33,349 705,864 39,528 Amounts recognized in the consolidated balance sheets: Prepaid benefit cost ¥ 1,122,507 ¥ 1,216,703 ¥ 94,445 ¥ 6,754 ¥ 153,861 ¥ 12,104 Accrued benefit cost (17,977) (18,305) (70,994) (4,759) (67,736) (3,367) Net amount recognized ¥ 1,104,530 ¥ 1,198,398 ¥ 23,451 ¥ 1,995 ¥ 86,125 ¥ 8,737 Note:
Aggregated Accumulated Benefit Obligations	The aggregated accumulated benefit obligations of these plans at March 31, 2021 and 2022 were as follows: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 (in millions) Aggregated accumulated benefit obligations ¥ 1,719,798 ¥ 1,663,543 ¥ 554,375 ¥ 596,153
Summary for Plans with Accumulated Benefit Obligations in Excess of Plan Assets	The projected benefit obligations, accumulated benefit obligations and fair value of plan assets for the plans with accumulated benefit obligations in excess of plan assets at March 31, 2021 and 2022 were as follows: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 (in millions) Projected benefit obligations ¥ 24,527 ¥ 25,327 ¥ 92,527 ¥ 87,876 Accumulated benefit obligations 24,527 25,327 68,720 67,612 Fair value of plan assets 6,738 7,223 21,532 20,139
Amounts Recognized in Accumulated OCI	The following table presents the amounts recognized in Accumulated OCI of the MUFG Group at March 31, 2021 and 2022: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 Pension benefits and SIP Pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits (in millions) Net actuarial loss (gain) ¥ 1,557 ¥ (18,183) ¥ 96,807 ¥ 3,255 ¥ 47,093 ¥ (1,070) Prior service cost (3,072) (2,845) (6,167) (1,869) (3,742) (1,650) Gross amount recognized in Accumulated OCI (1,515) (21,028) 90,640 1,386 43,351 (2,720) Taxes (41,639) (36,389) (23,900) (489) (12,092) 616 Net amount recognized in Accumulated OCI ¥ (43,154) ¥ (57,417) ¥ 66,740 ¥ 897 ¥ 31,259 ¥ (2,104)
Amounts Recognized in OCI	The following table presents OCI for the fiscal years ended March 31, 2021 and 2022: Domestic subsidiaries Foreign offices and subsidiaries 2021 2022 2021 2022 Pension benefits and SIP Pension benefits and SIP Pension benefits Other benefits Pension benefits Other benefits (in millions) Net actuarial loss (gain) arising during the year ¥ (423,283) ¥ (24,790) ¥ 319 ¥ (1,541) ¥ (40,559) ¥ (4,471) Prior service cost arising during the year (22) (1,053) (1,187) — 402 55 Losses (gains) due to amortization: Net actuarial loss (gain) (17,019) (770) (11,560) (208) (16,573) 64 Prior service cost 1,205 1,280 2,614 448 2,802 385 Curtailment and settlement 4,605 5,820 (30) — (44) — Foreign currency translation adjustments — — (5,808) (173) 6,683 (139) Total changes in Accumulated OCI ¥ (434,514) ¥ (19,513) ¥ (15,652) ¥ (1,474) ¥ (47,289) ¥ (4,106)
Weighted-average Target Asset Allocation of Plan Assets for Pension Benefits and Other Benefits	The weighted-average target asset allocation of plan assets for the pension benefits and other benefits at March 31, 2022 was as follows: Domestic subsidiaries Foreign offices and subsidiaries Asset category Pension benefits and SIP Pension benefits Other benefits Japanese equity securities 35.5 % — % — % Japanese debt securities 28.4 — — Non-Japanese equity securities 14.8 41.3 63.0 Non-Japanese debt securities 14.5 42.0 27.0 Real estate 1.5 10.2 10.0 Short-term assets and other 5.3 6.5 — Total 100.0 % 100.0 % 100.0 %
Estimated Future Benefit Payments	The following table presents benefit payments expected to be paid, which include the effect of expected future service for the fiscal years indicated: Domestic subsidiaries Foreign offices and subsidiaries Pension benefits and SIP Pension benefits Other benefits (in millions) Fiscal year ending March 31: 2023 ¥ 80,812 ¥ 26,258 ¥ 2,198 2024 79,376 27,869 2,228 2025 79,934 28,678 2,203 2026 78,977 30,656 2,142 2027 77,807 32,659 2,062 Thereafter (2028-2032) 380,256 197,642 8,335
Fair Value of Each Major Category of Plan Assets	The following table presents the fair value of each major category of plan assets as of March 31, 2021 and 2022: Pension benefits and SIP Investments: At March 31, 2021 Domestic subsidiaries Foreign offices and subsidiaries Assets category Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total (in millions) Japanese government bonds ¥ 145,236 ¥ — ¥ — ¥ 145,236 ¥ — ¥ — ¥ — ¥ — Non-Japanese government bonds — — — — 44,105 4,645 — 48,750 Other debt securities 10,136 14,065 230 24,431 — 117,696 — 117,696 Japanese marketable equity securities 862,096 — — 862,096 — — — — Non-Japanese marketable equity securities 81,525 588 — 82,113 34,584 671 — 35,255 Other investment funds — — — — 76,520 164,810 — 241,330 (2) Japanese general account of life insurance companies (1) — 217,827 — 217,827 — — — — Other investments 8,390 5,092 — 13,482 812 13,502 333 14,647 Total ¥ 1,107,383 ¥ 237,572 ¥ 230 ¥ 1,345,185 ¥ 156,021 ¥ 301,324 ¥ 333 ¥ 457,678 At March 31, 2022 Domestic subsidiaries Foreign offices and subsidiaries Assets category Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total (in millions) Japanese government bonds ¥ 140,538 ¥ — ¥ — ¥ 140,538 ¥ — ¥ — ¥ — ¥ — Non-Japanese government bonds — — — — 68,887 5,385 — 74,272 Other debt securities 9,950 14,648 232 24,830 — 133,815 — 133,815 Japanese marketable equity securities 848,482 — — 848,482 — — — — Non-Japanese marketable equity securities 87,983 176 — 88,159 34,659 556 — 35,215 Other investment funds — — — — 83,442 186,372 — 269,814 (2) Japanese general account of life insurance companies (1) — 209,482 — 209,482 — — — — Other investments 11,819 17,563 — 29,382 1,001 11,095 39,729 51,825 Total ¥ 1,098,772 ¥ 241,869 ¥ 232 ¥ 1,340,873 ¥ 187,989 ¥ 337,223 ¥ 39,729 ¥ 564,941 Notes: (1) “Japanese general accounts of life insurance companies” is a contract with life insurance companies that guarantees a return of approximately 1.25% from April 1, 2020 to March 31, 2021 and 1.25% from April 1, 2021 to March 31, 2022.
Fair Values of Certain Investments Valued at Net Asset per Share (or Its Equivalent)	The following table presents fair values of certain investments valued at net asset value per share (or its equivalent) as a practical expedient that were excluded from the above table as of March 31, 2021 and 2022: Domestic subsidiaries Foreign offices and subsidiaries Assets category 2021 2022 2021 2022 (in millions) Japanese pooled funds: Japanese marketable equity securities ¥ 118,509 ¥ 104,793 ¥ — ¥ — Japanese debt securities 324,700 221,250 — — Non-Japanese marketable equity securities 90,598 219,018 — — Non-Japanese debt securities 215,015 249,274 — — Other 153,483 92,558 — — Total pooled funds 902,305 886,893 — — Other investment funds 610,523 (1) 662,737 (1) 146,726 (2) 140,923 (2) Total ¥ 1,512,828 ¥ 1,549,630 ¥ 146,726 ¥ 140,923 Notes: (1) Other investment funds of the domestic subsidiaries include mutual funds and real estate funds of ¥580,617 million and ¥14,763 million, respectively, at March 31, 2021 and ¥625,237 million and ¥15,417 million, respectively, at March 31, 2022.

Other Assets and Liabilities (T

Other Assets and Liabilities (Tables)	12 Months Ended
	Mar. 31, 2022
Other Assets And Liabilities [Abstract]
Major Components of Other Assets and Liabilities	Major components of other assets and liabilities at March 31, 2021 and 2022 were as follows: 2021 2022 (in millions) Other assets: Accounts receivable: Receivables from brokers, dealers and customers for securities transactions ¥ 400,776 ¥ 644,443 Other (1) 1,162,424 1,187,311 Investments in equity method investees 2,560,339 3,066,738 Prepaid benefit cost (Note 13) 1,223,706 1,356,603 Cash collateral pledged for derivative transactions (Note 9) 2,005,136 2,893,178 Cash collateral for the use of Bank of Japan’s settlement infrastructure 998,838 933,000 Accrued interest 259,336 246,271 Deferred tax assets (Note 8) 122,031 79,191 Right-of-use assets of operating leases (Note 7) 338,547 261,803 Assets held for sale relating to transferred business of MUFG Union Bank (Note 2) — 11,621,567 Other 4,250,171 4,421,979 Total ¥ 13,321,304 ¥ 26,712,084 Other liabilities: Accounts payable: Payables to brokers, dealers and customers for securities transactions ¥ 1,202,371 ¥ 1,970,158 Other 1,281,436 1,311,035 Obligations to return securities received as collateral (Notes 15, 16 and 31) 6,581,759 6,826,215 Accrued interest 110,856 98,183 Deferred tax liabilities (Note 8) 827,571 530,267 Allowance for off-balance sheet credit instruments 83,615 126,055 Accrued benefit cost (Note 13) 93,730 89,062 Guarantees and indemnifications 38,123 45,358 Cash collateral received for derivative transactions (Note 9) 909,641 1,017,580 Obligations under operating leases (Note 7) 476,104 384,183 Liabilities held for sale relating to transferred business of MUFG Union Bank (Note 2) — 11,157,660 Accrued and other liabilities 3,465,614 3,106,706 Total ¥ 15,070,820 ¥ 26,662,462 Note:
Summarized Financial Information	Summarized financial information of Morgan Stanley, the largest portion of the MUFG Group’s equity method investees, as of March 31, 2021 and 2022, and for each of the three years ended March 31, 2022 is as follows: 2021 2022 (in billions) Trading assets ¥ 34,670 ¥ 36,335 Securities purchased under agreements to resell 12,701 15,637 Securities borrowed 11,309 18,480 Total assets 128,288 149,589 Deposits 35,775 44,163 Customer and other payables 25,477 29,815 Borrowings 23,894 28,127 Total liabilities 116,377 136,851 Noncontrolling interests 147 144 2020 2021 2022 (in billions) Net revenues ¥ 4,457 ¥ 5,841 ¥ 6,655 Total non-interest expenses 3,259 3,932 4,498 Income from continuing operations before income taxes 1,140 1,881 2,139 Net income applicable to Morgan Stanley 903 1,433 1,650 Summarized financial information of the MUFG Group’s equity method investees, other than Morgan Stanley as of March 31, 2021 and 2022, and for each of the three years ended March 31, 2022 is as follows: 2021 2022 (in billions) Net loans ¥ 15,417 ¥ 17,107 Total assets 28,459 32,992 Deposits 9,651 11,291 Total liabilities 24,176 27,255 Noncontrolling interests 85 93 2020 2021 2022 (in billions) Total interest income ¥ 1,093 ¥ 1,058 ¥ 1,119 Total interest expense 419 375 335 Net interest income 674 683 784 Provision for credit losses 171 215 207 Income before income tax expense 366 476 582 Net income 285 400 488

Offsetting of Derivatives, Re_2

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions (Tables)	12 Months Ended
	Mar. 31, 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 consolidated balance sheet” column in the tabular disclosure below. At March 31, 2021: Gross amounts of recognized assets/liabilities Gross amounts offset in the consolidated balance sheet Net amounts presented in the consolidated balance sheet Gross amounts not offset in the consolidated balance sheet Net amounts Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 11,997 ¥ — ¥ 11,997 ¥ (8,628) ¥ (605) ¥ 2,764 Receivables under resale agreements 16,053 (2,273) 13,780 (12,687) (37) 1,056 Receivables under securities borrowing transactions 3,370 — 3,370 (3,289) — 81 Total ¥ 31,420 ¥ (2,273) ¥ 29,147 ¥ (24,604) ¥ (642) ¥ 3,901 Financial liabilities: Derivative liabilities ¥ 11,714 ¥ — ¥ 11,714 ¥ (8,545) ¥ (1,624) ¥ 1,545 Payables under repurchase agreements 26,800 (2,232) 24,568 (23,835) (60) 673 Payables under securities lending transactions 843 — 843 (814) (2) 27 Obligations to return securities received as collateral 6,582 — 6,582 (1,931) — 4,651 Total ¥ 45,939 ¥ (2,232) ¥ 43,707 ¥ (35,125) ¥ (1,686) ¥ 6,896 At March 31, 2022: Gross amounts of recognized assets/liabilities Gross amounts offset in the consolidated balance sheet Net amounts presented in the consolidated balance sheet (1) Gross amounts not offset in the consolidated balance sheet Net amounts 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 Note: (1) Net amounts in this 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 consolidated balance sheet” column in the tabular disclosure below. At March 31, 2021: Gross amounts of recognized assets/liabilities Gross amounts offset in the consolidated balance sheet Net amounts presented in the consolidated balance sheet Gross amounts not offset in the consolidated balance sheet Net amounts Financial instruments Cash collateral received/pledged (in billions) Financial assets: Derivative assets ¥ 11,997 ¥ — ¥ 11,997 ¥ (8,628) ¥ (605) ¥ 2,764 Receivables under resale agreements 16,053 (2,273) 13,780 (12,687) (37) 1,056 Receivables under securities borrowing transactions 3,370 — 3,370 (3,289) — 81 Total ¥ 31,420 ¥ (2,273) ¥ 29,147 ¥ (24,604) ¥ (642) ¥ 3,901 Financial liabilities: Derivative liabilities ¥ 11,714 ¥ — ¥ 11,714 ¥ (8,545) ¥ (1,624) ¥ 1,545 Payables under repurchase agreements 26,800 (2,232) 24,568 (23,835) (60) 673 Payables under securities lending transactions 843 — 843 (814) (2) 27 Obligations to return securities received as collateral 6,582 — 6,582 (1,931) — 4,651 Total ¥ 45,939 ¥ (2,232) ¥ 43,707 ¥ (35,125) ¥ (1,686) ¥ 6,896 At March 31, 2022: Gross amounts of recognized assets/liabilities Gross amounts offset in the consolidated balance sheet Net amounts presented in the consolidated balance sheet (1) Gross amounts not offset in the consolidated balance sheet Net amounts 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 Note: (1) Net amounts in this 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 Se_2

Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings (Tables)	12 Months Ended
	Mar. 31, 2022
Disclosure of Repurchase Agreements [Abstract]
Gross Obligations by Remaining Contractual Maturity and Class of Collateral Pledged	March 31, 2021 Remaining Contractual Maturity Overnight and open 30 days or less 31-90 days Over 90 days Total (in billions) Payables under repurchase agreements ¥ 6,006 ¥ 16,888 ¥ 1,973 ¥ 1,933 ¥ 26,800 Payables under securities lending transactions 789 26 28 — 843 Obligations to return securities received as collateral 5,607 278 528 169 6,582 Total ¥ 12,402 ¥ 17,192 ¥ 2,529 ¥ 2,102 ¥ 34,225 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
Secured Borrowing by the Class of Collateral Pledged	Secured borrowing by the class of collateral pledged at March 31, 2021 and 2022 was as follows: March 31, 2021 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 ¥ 7,754 ¥ 104 ¥ 4,022 ¥ 11,880 Foreign government and official institution bonds 13,914 17 738 14,669 Corporate bonds 702 1 214 917 Residential mortgage-backed securities 3,729 — — 3,729 Other debt securities 218 — 5 223 Marketable equity securities 462 721 1,603 2,786 Other 21 — — 21 Total ¥ 26,800 ¥ 843 ¥ 6,582 ¥ 34,225 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

Common Stock and Capital Surp_2

Common Stock and Capital Surplus (Tables)	12 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Number of Shares Issued and Outstanding	The changes in the number of issued shares of common stock during the fiscal years ended March 31, 2020, 2021 and 2022 were as follows: 2020 2021 2022 (shares) Balance at beginning of fiscal year 13,667,770,520 13,581,995,120 13,581,995,120 Retirement of shares of common stock (85,775,400) — (300,000,000) Balance at end of fiscal year 13,581,995,120 13,581,995,120 13,281,995,120

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Changes in Accumulated OCI, Net of Tax and Net of Noncontrolling Interests	The following table presents the changes in Accumulated OCI, net of tax and net of noncontrolling interests, for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 (in millions) Accumulated other comprehensive income (loss), net of taxes: Net unrealized gains (losses) on investment securities: Balance at beginning of fiscal year ¥ (369,369) ¥ (344,785) ¥ (383,004) Net change during the fiscal year 24,584 (38,253) (291,226) Effect of adopting new guidance on measurement of credit losses on financial instruments — 34 — Balance at end of fiscal year ¥ (344,785) ¥ (383,004) ¥ (674,230) Net debt valuation adjustments: Balance at beginning of fiscal year ¥ (8,670) ¥ 45,502 ¥ (37,862) Net change during the fiscal year 54,172 (83,364) 23,324 Balance at end of fiscal year ¥ 45,502 ¥ (37,862) ¥ (14,538) Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Balance at beginning of fiscal year ¥ (24,140) ¥ (13,343) ¥ 19,029 Net change during the fiscal year 10,797 32,372 (13,060) Balance at end of fiscal year ¥ (13,343) ¥ 19,029 ¥ 5,969 Defined benefit plans: Balance at beginning of fiscal year ¥ (208,273) ¥ (337,918) ¥ (20,382) Net change during the fiscal year (129,645) 317,536 49,506 Balance at end of fiscal year ¥ (337,918) ¥ (20,382) ¥ 29,124 Foreign currency translation adjustments: Balance at beginning of fiscal year ¥ 326,183 ¥ 230,127 ¥ 132,738 Net change during the fiscal year (96,056) (97,389) 747,970 Balance at end of fiscal year ¥ 230,127 ¥ 132,738 ¥ 880,708 Balance at end of fiscal year ¥ (420,417) ¥ (289,481) ¥ 227,033
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 fiscal years ended March 31, 2020, 2021 and 2022: 2020 2021 2022 Before tax Tax (expense) or benefit Net of tax 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 ¥ 100,974 ¥ (2,260) ¥ 98,714 ¥ (69,247) ¥ (599) ¥ (69,846) ¥ (347,106) ¥ 76,360 ¥ (270,746) Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests (107,102) 32,007 (75,095) (383) (547) (930) (2,015) 11,268 9,253 Net change (6,128) 29,747 23,619 (69,630) (1,146) (70,776) (349,121) 87,628 (261,493) Net unrealized gains (losses) on investment securities attributable to noncontrolling interests (965) (32,523) 29,733 Net unrealized gains (losses) on investment securities attributable to Mitsubishi UFJ Financial Group 24,584 (38,253) (291,226) Net debt valuation adjustments: Net debt valuation adjustments 77,765 (23,812) 53,953 (126,007) 38,584 (87,423) 32,735 (10,025) 22,710 Reclassification adjustment for losses included in net income (loss) before attribution of noncontrolling interests 315 (96) 219 5,851 (1,792) 4,059 885 (271) 614 Net change 78,080 (23,908) 54,172 (120,156) 36,792 (83,364) 33,620 (10,296) 23,324 Net debt valuation adjustments attributable to noncontrolling interests — — — Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group 54,172 (83,364) 23,324 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Net unrealized gains (losses) on derivatives qualifying for cash flow hedges 1,375 (560) 815 44,255 (12,359) 31,896 (5,542) 1,825 (3,717) Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests 13,279 (3,452) 9,827 164 115 279 (12,200) 3,143 (9,057) Net change 14,654 (4,012) 10,642 44,419 (12,244) 32,175 (17,742) 4,968 (12,774) 2020 2021 2022 Before tax Tax (expense) or benefit Net of tax 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 derivatives qualifying for cash flow hedges attributable to noncontrolling interests (155) (197) 286 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group 10,797 32,372 (13,060) Defined benefit plans: Defined benefit plans (195,851) 59,426 (136,425) 436,435 (133,404) 303,031 62,946 (17,350) 45,596 Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests 6,643 (1,741) 4,902 22,504 (6,479) 16,025 7,042 (1,689) 5,353 Net change (189,208) 57,685 (131,523) 458,939 (139,883) 319,056 69,988 (19,039) 50,949 Defined benefit plans attributable to noncontrolling interests (1,878) 1,520 1,443 Defined benefit plans attributable to Mitsubishi UFJ Financial Group (129,645) 317,536 49,506 Foreign currency translation adjustments: Foreign currency translation adjustments (99,520) 19,588 (79,932) (61,085) (14,370) (75,455) 853,517 (98,059) 755,458 Reclassification adjustment for losses (gains) included in net income (loss) before attribution of noncontrolling interests (2,238) 1,105 (1,133) (57,534) 17,738 (39,796) (4,296) 1,317 (2,979) Net change (101,758) 20,693 (81,065) (118,619) 3,368 (115,251) 849,221 (96,742) 752,479 Foreign currency translation adjustments attributable to noncontrolling interests 14,991 (17,862) 4,509 Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group (96,056) (97,389) 747,970 Other comprehensive income (loss) attributable to Mitsubishi UFJ Financial Group ¥ (136,148) ¥ 130,902 ¥ 516,514
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 consolidated statements of operations for the fiscal years ended March 31, 2020, 2021 and 2022: 2020 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 losses (gains) on sales and redemptions of Available-for-sale debt securities ¥ (108,193) ¥ 6,410 ¥ (48,637) Investment securities gains (losses)—net Impairment losses on investment securities 1,590 6 47,069 Investment securities gains Other (499) (6,799) (447) (107,102) (383) (2,015) Total before tax 32,007 (547) 11,268 Income tax expense (benefit) ¥ (75,095) ¥ (930) ¥ 9,253 Net of tax Net debt valuation adjustments ¥ 315 ¥ 5,851 ¥ 885 Equity in earnings of equity method investees—net or Other non-interest income 315 5,851 885 Total before tax (96) (1,792) (271) Income tax expense (benefit) ¥ 219 ¥ 4,059 ¥ 614 Net of tax Net unrealized losses (gains) on derivatives qualifying for cash flow hedges Interest rate contracts Interest rate contracts ¥ 9,878 ¥ (3,579) ¥ (12,017) Interest income on Loans, Foreign exchange contracts 3,399 3,743 (183) Interest expense on Long- term debt or Foreign exchange losses—net Other 2 — — 13,279 164 (12,200) Total before tax (3,452) 115 3,143 Income tax expense (benefit) ¥ 9,827 ¥ 279 ¥ (9,057) Net of tax Defined benefit plans Net actuarial loss (1) ¥ 15,488 ¥ 28,787 ¥ 17,279 Other non-interest expenses Prior service cost (1) (5,718) (4,267) (4,467) Other non-interest expenses Gain on settlements and curtailment, and other (1) (3,127) (2,016) (5,770) Other non-interest income or expenses 6,643 22,504 7,042 Total before tax (1,741) (6,479) (1,689) Income tax expense (benefit) ¥ 4,902 ¥ 16,025 ¥ 5,353 Net of tax Foreign currency translation adjustments ¥ (5,003) ¥ (57,561) ¥ (4,303) Other non-interest income 2,765 27 7 Other non-interest expenses (2,238) (57,534) (4,296) Total before tax 1,105 17,738 1,317 Income tax expense (benefit) ¥ (1,133) ¥ (39,796) ¥ (2,979) Net of tax Total reclassifications for the period ¥ (89,103) ¥ (29,398) ¥ (10,584) Total before tax 27,823 9,035 13,768 Income tax expense (benefit) ¥ (61,280) ¥ (20,363) ¥ 3,184 Net of tax Note:

Regulatory Capital Requiremen_2

Regulatory Capital Requirements (Tables)	12 Months Ended
	Mar. 31, 2022
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Risk-adjusted Capital Amounts and Ratios	The risk-adjusted capital amounts and ratios, and leverage ratios, of MUFG, MUFG Bank and Mitsubishi UFJ Trust and Banking presented in the following table are based on amounts calculated in accordance with Japanese GAAP as required by the FSA. Actual For capital adequacy purposes Amount Ratio Amount Ratio (in millions, except percentages) Consolidated: At March 31, 2021: Total capital (to risk-weighted assets): MUFG (1) ¥ 18,669,510 16.31 % ¥ 13,730,324 12.00 % BK 14,630,443 15.04 7,779,147 8.00 TB 2,099,662 22.47 747,524 8.00 Tier 1 capital (to risk-weighted assets): MUFG (1) 15,982,746 13.96 11,441,937 10.00 BK 12,411,352 12.76 5,834,360 6.00 TB 1,870,988 20.02 560,643 6.00 Common Equity Tier 1 capital (to risk-weighted assets): MUFG (1) 14,113,722 12.33 9,725,646 8.50 BK 10,865,302 11.17 4,375,770 4.50 TB 1,681,140 17.99 420,482 4.50 Leverage ratio: MUFG 15,982,746 5.45 8,781,753 3.00 BK 12,411,352 5.22 7,123,396 3.00 TB 1,870,988 7.53 744,744 3.00 At March 31, 2022: Total capital (to risk-weighted assets): MUFG (1) ¥ 17,858,656 14.29 % ¥ 15,002,201 12.01 % BK 14,076,877 12.94 8,700,226 8.00 TB 1,969,282 20.78 758,073 8.00 Tier 1 capital (to risk-weighted assets): MUFG (1) 15,476,287 12.38 12,503,916 10.01 BK 12,092,189 11.11 6,525,170 6.00 TB 1,803,306 19.03 568,555 6.00 Common Equity Tier 1 capital (to risk-weighted assets): MUFG (1) 13,823,912 11.06 10,630,203 8.51 BK 10,728,587 9.86 4,893,877 4.50 TB 1,640,458 17.31 426,416 4.50 Leverage ratio: MUFG 15,476,287 5.14 9,023,770 3.00 BK 12,092,189 4.96 7,312,672 3.00 TB 1,803,306 6.77 798,855 3.00 Actual For capital Amount Ratio Amount Ratio (in millions, except percentages) Stand-alone: At March 31, 2021: Total capital (to risk-weighted assets): BK ¥ 12,359,493 14.60 % ¥ 6,770,631 8.00 % TB 2,294,694 21.91 837,567 8.00 Tier 1 capital (to risk-weighted assets): BK 10,512,405 12.42 5,077,974 6.00 TB 2,066,480 19.73 628,176 6.00 Common Equity Tier 1 capital (to risk-weighted assets): BK 9,025,272 10.66 3,808,480 4.50 TB 1,876,980 17.92 471,132 4.50 Leverage ratio: BK 10,512,405 5.14 6,127,521 3.00 TB 2,066,480 8.95 691,914 3.00 At March 31, 2022: Total capital (to risk-weighted assets): BK ¥ 11,167,553 11.91 % ¥ 7,498,348 8.00 % TB 2,122,840 19.97 850,030 8.00 Tier 1 capital (to risk-weighted assets): BK 9,565,792 10.20 5,623,761 6.00 TB 1,957,340 18.42 637,523 6.00 Common Equity Tier 1 capital (to risk-weighted assets): BK 8,261,659 8.81 4,217,821 4.50 TB 1,794,840 16.89 478,142 4.50 Leverage ratio: BK 9,565,792 4.59 6,249,606 3.00 TB 1,957,340 7.81 751,302 3.00 Note: (1) Effective March 31, 2016, the FSA’s capital conservation buffer, countercyclical buffer and G-SIB surcharge requirements became applicable to Japanese banking institutions with international operations conducted through foreign offices. As a result, in addition to the 4.50% minimum Common Equity Tier 1 capital ratio, MUFG is required to maintain a capital conservation buffer of 2.5% and a G-SIB surcharge of 1.5% as of March 31, 2021 and 2022, and the countercyclical buffer of 0.00% and 0.01% as of March 31, 2021 and 2022, respectively. Actual Minimum capital ratios required (1) Amount Ratio Amount Ratio (in millions, except percentages) MUAH: At December 31, 2020: Total capital (to risk-weighted assets) $ 16,871 16.29 % $ 12,843 12.40 % Tier 1 capital (to risk-weighted assets) 15,823 15.28 10,772 10.40 % Tier 1 capital (to quarterly average assets) (2) 15,823 9.56 6,623 4.00 % Common Equity Tier 1 capital (to risk-weighted assets) 15,823 15.28 9,218 8.90 % At December 31, 2021: Total capital (to risk-weighted assets) $ 17,177 16.32 % $ 11,890 11.30 % Tier 1 capital (to risk-weighted assets) 16,843 16.01 9,786 9.30 % Tier 1 capital (to quarterly average assets) (2) 16,843 10.44 6,453 4.00 % Common Equity Tier 1 capital (to risk-weighted assets) 16,843 16.01 8,208 7.80 % Notes: (1) The minimum capital requirement includes a capital conservation buffer of 4.4% at December 31, 2020 and 3.3% at December 31, 2021. (2) Excludes certain deductions. The figures on the table below are calculated according to U.S. Basel III as of December 31, 2020 and 2021. MUFG Union Bank’s actual capital amounts and ratios are presented as follows: Actual Minimum capital ratios required (1) Ratios OCC requires to be “well capitalized” Amount Ratio Amount Ratio Amount Ratio (in millions, except percentages) BK(US): At December 31, 2020: Total capital (to risk-weighted assets) $ 15,629 16.68 % $ 9,836 10.50 % $ 9,368 10.00 % Tier 1 capital (to risk-weighted assets) 14,634 15.62 7,963 8.50 7,494 8.00 Tier 1 capital (to quarterly average assets) (2) 14,634 11.12 5,262 4.00 6,577 5.00 Common Equity Tier 1 capital (to risk-weighted assets) 14,634 15.62 6,557 7.00 6,089 6.50 At December 31, 2021: Total capital (to risk-weighted assets) $ 16,265 17.36 % $ 9,840 10.50 % $ 9,371 10.00 % Tier 1 capital (to risk-weighted assets) 15,629 16.68 7,966 8.50 7,497 8.00 Tier 1 capital (to quarterly average assets) (2) 15,629 12.14 5,149 4.00 6,436 5.00 Common Equity Tier 1 capital (to risk-weighted assets) 15,629 16.68 6,560 7.00 6,091 6.50 Notes: (1) Beginning January 1, 2019, the minimum capital requirement includes a capital conservation buffer of 2.5%. (2) Excludes certain deductions.

Earnings (Loss) Per Common Sh_2

Earnings (Loss) Per Common Share Applicable to Common Shareholders of MUFG (Tables)	12 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Reconciliations of Net Income (Loss) and Weighted Average Number of Common Shares Outstanding Used for Computation of Basic EPS to Adjusted Amounts for Computation of Diluted EPS	Reconciliations of net income (loss) and weighted average number of common shares outstanding used for the computation of basic EPS to the adjusted amounts for the computation of diluted EPS for the fiscal years ended March 31, 2020, 2021 and 2022 are as follows: 2020 2021 2022 (in millions) Income (loss) (Numerator): Net income (loss) attributable to Mitsubishi UFJ Financial Group ¥ 305,955 ¥ 1,117,298 ¥ (83,320) Effect of dilutive instruments: Stock acquisition rights and restricted stock units—Morgan Stanley (2,861) (4,159) (5,361) Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions ¥ 303,094 ¥ 1,113,139 ¥ (88,681) 2020 2021 2022 (thousands of shares) Shares (Denominator): Weighted average common shares outstanding 12,912,790 12,859,737 12,798,060 Effect of dilutive instruments: Stock acquisition rights and the common shares of MUFG under the Board Incentive Plan (1) 166 — — Weighted average common shares for diluted computation 12,912,956 12,859,737 12,798,060 2020 2021 2022 (in yen) Earnings (loss) per common share applicable to common shareholders of Mitsubishi UFJ Financial Group: Basic earnings (loss) per common share: Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group ¥ 23.69 ¥ 86.88 ¥(6.51) Diluted earnings (loss) per common share: Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group (1) ¥ 23.47 ¥ 86.56 ¥(6.93) Note:

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Mar. 31, 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, 2021 and 2022: Notional amounts (1) 2021 2022 (in trillions) Interest rate contracts ¥ 1,308.4 ¥ 1,391.8 Foreign exchange contracts 222.0 245.0 Equity contracts 8.0 7.4 Commodity contracts 0.1 0.1 Credit derivatives 9.8 9.8 Other 3.5 3.2 Total ¥ 1,551.8 ¥ 1,657.3 Note:
Fair Value Information on Derivative Instruments Recorded on Consolidated Balance Sheet	The following table summarizes fair value information on derivative instruments that are recorded on the MUFG Group’s consolidated balance sheets at March 31, 2021 and 2022: Fair value of derivative instruments 2021 (1)(5) 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 ¥ 7,718 ¥ — ¥ 7,718 ¥ 5,445 ¥ — ¥ 5,445 Foreign exchange contracts 3,910 — 3,910 4,801 2 4,803 Equity contracts 231 — 231 151 — 151 Commodity contracts 27 — 27 22 — 22 Credit derivatives 94 — 94 103 — 103 Other (6) 17 — 17 10 — 10 Total derivative assets ¥ 11,997 ¥ — ¥ 11,997 ¥ 10,532 ¥ 2 ¥ 10,534 Derivative liabilities: Interest rate contracts ¥ 7,361 ¥ — ¥ 7,361 ¥ 5,652 ¥ — ¥ 5,652 Foreign exchange contracts 4,022 5 4,027 4,907 1 4,908 Equity contracts 237 — 237 277 — 277 Commodity contracts 27 — 27 22 — 22 Credit derivatives 109 — 109 101 — 101 Other (6) (47) — (47) (65) — (65) Total derivative liabilities ¥ 11,709 ¥ 5 ¥ 11,714 ¥ 10,894 ¥ 1 ¥ 10,895 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 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.
Gains and Losses for Trading and Risk Management Derivatives (Not Designated as Hedging Instruments)	Gains and losses for trading and risk management derivatives (not designated as hedging instruments) Trading and risk management derivatives gains and losses (Not designated as hedging instruments) 2020 2021 2022 Foreign exchange gains (losses) —net Trading account profits (losses) —net Total Foreign exchange gains (losses) —net Trading account profits (losses) —net Total Foreign exchange gains (losses) —net Trading account profits (losses) —net Total (in billions) Interest rate contracts ¥ — ¥ (173) ¥ (173) ¥ — ¥ 70 ¥ 70 ¥ — ¥ 51 ¥ 51 Foreign exchange contracts (429) — (429) (91) — (91) (39) — (39) Equity contracts — 30 30 — (269) (269) — (98) (98) Credit derivatives — 15 15 — (53) (53) — (34) (34) Other (1) (5) (31) (36) 11 (178) (167) (6) (21) (27) Total ¥ (434) ¥ (159) ¥ (593) ¥ (80) ¥ (430) ¥ (510) ¥ (45) ¥ (102) ¥ (147) Note:
Protection Sold Through Credit Derivatives	The table below summarizes certain information regarding protection sold through credit derivatives as of March 31, 2021 and 2022: Protection sold Maximum potential/Notional amount by expiration period Fair value At March 31, 2021: 1 year or less 1-5 years Over 5 years Total (Asset)/ Liability (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 294,312 ¥ 2,235,390 ¥ 715,896 ¥ 3,245,598 ¥ (67,707) Non-investment grade 84,780 311,702 59,145 455,627 5,284 Not rated — 1,683 — 1,683 (83) Total 379,092 2,548,775 775,041 3,702,908 (62,506) Index and basket credit default swaps: Investment grade (2) 43,000 470,063 29,133 542,196 (4,753) Non-investment grade 35,427 65,319 — 100,746 (1,165) Not rated 59,534 29,971 852 90,357 (919) Total 137,961 565,353 29,985 733,299 (6,837) Total credit default swaps sold 517,053 3,114,128 805,026 4,436,207 (69,343) Other credit derivatives sold (3) : Investment grade (2) — 16,606 — 16,606 57 Total credit derivatives ¥ 517,053 ¥ 3,130,734 ¥ 805,026 ¥ 4,452,813 ¥ (69,286) 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 Not rated — — — — — 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) Other credit derivatives sold: Investment grade — — — — — Total credit derivatives ¥ 643,285 ¥ 2,982,687 ¥ 836,239 ¥ 4,462,211 ¥ (72,915) 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)	12 Months Ended
	Mar. 31, 2022
Guarantee Obligations And Other Off Balance Sheet Instruments [Abstract]
Contractual or Notional Amounts of Guarantees with Amount by Expiration Period	The contractual or notional amounts summarized in the following table do not necessarily bear any direct relationship to the future actual credit exposure, primarily because of risk management techniques of the MUFG Group. Maximum potential/ Contractual or Notional amount Amount by expiration period At March 31, 2021: 1 year or less 1-5 years Over 5 years (in billions) Standby letters of credit and financial guarantees ¥ 4,055 ¥ 3,174 ¥ 698 ¥ 183 Performance guarantees 3,193 2,315 755 123 Derivative instruments (1) 38,499 15,534 15,104 7,861 Liabilities of trust accounts 10,656 5,667 718 4,271 Other 40 6 34 — Total ¥ 56,443 ¥ 26,696 ¥ 17,309 ¥ 12,438 Maximum potential/ Contractual or Notional amount Amount by expiration period At March 31, 2022: 1 year or less 1-5 years Over 5 years (in billions) Standby letters of credit and financial guarantees ¥ 4,731 ¥ 3,733 ¥ 784 ¥ 214 Performance guarantees 3,828 2,807 887 134 Derivative instruments (1) 39,982 14,670 16,988 8,324 Liabilities of trust accounts 12,262 6,413 672 5,177 Other 71 6 65 — Total ¥ 60,874 ¥ 27,629 ¥ 19,396 ¥ 13,849 Note:
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, 2021 and 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. Amount by borrower grade At March 31, 2021: Maximum potential/ Contractual or Notional amount Normal Close Watch (1) Likely to become Bankrupt or Legally/ Virtually Bankrupt (2) Not rated (in billions) Standby letters of credit and financial guarantees ¥ 4,055 ¥ 3,929 ¥ 108 ¥ 15 ¥ 3 Performance guarantees 3,193 3,092 70 3 28 Total ¥ 7,248 ¥ 7,021 ¥ 178 ¥ 18 ¥ 31 Amount by borrower grade At March 31, 2022: Maximum potential/ Contractual or Notional amount Normal Close Watch (1) Likely to become Bankrupt or Legally/ Virtually Bankrupt (2) 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 Notes: (1) Borrowers classified as Close Watch represent those that require close monitoring as the borrower has begun to exhibit elements of potential concern with respect to its business performance and financial condition, the borrower has begun to exhibit elements of serious concern with respect to its business performance and financial condition, including business problems requiring long-term solutions, or the borrower’s loans are TDRs or loans contractually past due 90 days or more for special reasons.
Contractual Amounts with Regard to Other Off-balance Sheet Instruments	The table below presents the contractual amounts with regard to the other off-balance sheet instruments at March 31, 2021 and 2022: 2021 2022 (in billions) Commitments to extend credit ¥ 84,614 ¥ 82,886 Commercial letters of credit 835 908 Commitments to make investments 281 478

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	12 Months Ended
	Mar. 31, 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 consolidated balance sheets at March 31, 2021 and 2022: Consolidated VIEs Consolidated assets At March 31, 2021: 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 ¥ 5,986,887 ¥ 109,439 ¥ 40,061 ¥ 5,433 ¥ 1,015,434 ¥ 4,800,221 ¥ 16,299 Investment funds 374,324 — 15,171 240,327 41,512 — 77,314 Special purpose entities created for structured financing 175,630 — 2,058 4,645 — 113,943 54,984 Repackaged instruments 281,331 3,179 — 73,914 118,199 85,782 257 Securitization of the MUFG Group’s assets 10,358,628 — 996 — — 10,339,273 18,359 Trust arrangements 9,029,390 — — 623,466 1,071,708 7,334,215 1 Other 43,320 323 3,826 17,108 — 4,660 17,403 Total consolidated assets before elimination 26,249,510 112,941 62,112 964,893 2,246,853 22,678,094 184,617 The amounts eliminated in consolidation (8,121,094) (110,243) (31,690) (5,892) (519,561) (7,430,166) (23,542) Total consolidated assets ¥ 18,128,416 ¥ 2,698 ¥ 30,422 ¥ 959,001 ¥ 1,727,292 ¥ 15,247,928 ¥ 161,075 Consolidated liabilities Total Deposits Other short-term borrowings Long-term debt All other liabilities (in millions) Asset-backed conduits ¥ 5,989,188 ¥ — ¥ 4,058,248 ¥ 1,461,043 ¥ 469,897 Investment funds 15,039 — — 5,831 9,208 Special purpose entities created for structured financing 97,226 — — 84,973 12,253 Repackaged instruments 284,795 — 21,343 195,987 67,465 Securitization of the MUFG Group’s assets 10,367,099 — 31,000 9,839,204 496,895 Trust arrangements 9,029,272 7,826,959 — — 1,202,313 Other 39,141 — 3,433 18,315 17,393 Total consolidated liabilities before elimination 25,821,760 7,826,959 4,114,024 11,605,353 2,275,424 The amounts eliminated in consolidation (14,679,458) — (2,422,978) (11,144,547) (1,111,933) The amount of liabilities with recourse to the general credit of the MUFG Group (10,547,483) (7,826,959) (1,657,447) (3,043) (1,060,034) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 594,819 ¥ — ¥ 33,599 ¥ 457,763 ¥ 103,457 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 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, 2021 and 2022: Non-consolidated VIEs On-balance sheet assets On-balance sheet At March 31, 2021: Total assets Maximum Total Trading Investment Loans All Total All other (in millions) Asset-backed conduits ¥ 25,491,847 ¥ 5,606,965 ¥ 4,211,342 ¥ 277 ¥ 1,598,992 ¥ 2,612,073 ¥ — ¥ — ¥ — Investment funds 102,840,486 2,646,071 2,288,210 538,190 501,434 1,213,179 35,407 114,911 114,911 Special purpose entities created for structured financing 38,771,947 4,409,839 3,254,145 476,784 25,234 2,745,441 6,686 10,447 10,447 Repackaged instruments 8,604,182 3,088,564 3,008,695 611,245 2,142,482 204,332 50,636 29,478 29,478 Other 65,455,861 3,039,135 2,176,775 198,144 — 1,915,912 62,719 24,732 24,732 Total ¥ 241,164,323 ¥ 18,790,574 ¥ 14,939,167 ¥ 1,824,640 ¥ 4,268,142 ¥ 8,690,937 ¥ 155,448 ¥ 179,568 ¥ 179,568 Non-consolidated VIEs On-balance sheet assets On-balance sheet At March 31, 2022: Total assets Maximum Total Trading Investment Loans All Total All other (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

Fees and Commissions Income (Ta

Fees and Commissions Income (Tables)	12 Months Ended
	Mar. 31, 2022
Revenue from Contract with Customer [Abstract]
Details of Fees and Commissions Income	Details of fees and commissions income for the fiscal years ended March 31, 2020, 2021 and 2022 were as follows: 2020 2021 2022 (in millions) Fees and commissions on deposits ¥ 53,684 ¥ 50,131 ¥ 51,032 Fees and commissions on remittances and transfers 169,407 165,288 157,236 Fees and commissions on foreign trading business 66,025 79,353 56,344 Fees and commissions on credit card business 238,112 199,625 207,080 Fees and commissions on security-related services 221,494 244,017 264,530 Fees and commissions on administration and management services for investment funds 184,559 235,497 286,549 Trust fees 119,919 125,658 133,322 Guarantee fees (1) 46,322 43,889 45,849 Insurance commissions 44,415 42,117 42,353 Fees and commissions on real estate business 49,764 48,110 65,611 Other fees and commissions (2) 308,351 293,598 348,957 Total ¥ 1,502,052 ¥ 1,527,283 ¥ 1,658,863 Notes: (1) Guarantee fees are not within the scope of the guidance on revenue from contracts with customers.

Trading Account Profits and L_2

Trading Account Profits and Losses (Tables)	12 Months Ended
	Mar. 31, 2022
Trading Account Profits And Losses [Abstract]
Net Trading Gains (Losses)	Net trading gains (losses) for the fiscal years ended March 31, 2020, 2021 and 2022 were comprised of the following: 2020 2021 2022 (in millions) Interest rate and other derivative contracts ¥ (159,045) ¥ (429,586) ¥ (102,122) Trading account securities, excluding derivatives 924,418 19,218 (722,298) Trading account profits (losses)—net 765,373 (410,368) (824,420) Foreign exchange derivative contracts (1) (434,052) (79,559) (44,693) Net trading gains (losses) ¥ 331,321 ¥ (489,927) ¥ (869,113) Note:

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Mar. 31, 2022
Segment Reporting [Abstract]
Financial Information by Business Segment	Prior period business segment information has been restated to enable comparison between the relevant amounts for the fiscal years ended March 31, 2020, 2021 and 2022. Customer Business Global Other Total Digital Retail & Japanese Global Asset Global Total (in billions) Fiscal year ended March 31, 2020: Net revenue: ¥ 789.6 ¥ 604.9 ¥ 575.9 ¥ 795.6 ¥ 243.1 ¥ 409.3 ¥ 3,418.4 ¥ 535.7 ¥ 19.1 ¥ 3,973.2 BK and TB (1) : 282.7 422.7 444.8 (0.2) 94.8 294.3 1,539.1 311.8 21.7 1,872.6 Net interest income 253.6 189.8 188.6 0.6 2.5 128.6 763.7 125.4 35.8 924.9 Net fees 24.6 209.8 202.1 — 92.3 148.1 676.9 (16.1) (55.4) 605.4 Other 4.5 23.1 54.1 (0.8) — 17.6 98.5 202.5 41.3 342.3 Other than BK and TB 506.9 182.2 131.1 795.8 148.3 115.0 1,879.3 223.9 (2.6) 2,100.6 Operating expenses 578.4 532.3 331.1 564.3 173.9 258.9 2,438.9 235.8 124.4 2,799.1 Operating profit (loss) ¥ 211.2 ¥ 72.6 ¥ 244.8 ¥ 231.3 ¥ 69.2 ¥ 150.4 ¥ 979.5 ¥ 299.9 ¥ (105.3) ¥ 1,174.1 Fiscal year ended March 31, 2021: Net revenue: ¥ 731.1 ¥ 567.4 ¥ 563.1 ¥ 783.5 ¥ 293.5 ¥ 431.5 ¥ 3,370.1 ¥ 640.3 ¥ 7.5 ¥ 4,017.9 BK and TB (1) : 258.4 373.8 451.5 1.0 99.5 274.4 1,458.6 386.3 32.9 1,877.8 Net interest income 223.6 165.8 187.0 1.6 5.5 138.3 721.8 212.3 37.3 971.4 Net fees 32.1 188.9 216.3 — 94.0 150.2 681.5 (4.5) (70.7) 606.3 Other 2.7 19.1 48.2 (0.6) — (14.1) 55.3 178.5 66.3 300.1 Other than BK and TB 472.7 193.6 111.6 782.5 194.0 157.1 1,911.5 254.0 (25.4) 2,140.1 Operating expenses 559.6 500.2 323.0 507.3 212.9 269.9 2,372.9 240.2 157.8 2,770.9 Operating profit (loss) ¥ 171.5 ¥ 67.2 ¥ 240.1 ¥ 276.2 ¥ 80.6 ¥ 161.6 ¥ 997.2 ¥ 400.1 ¥ (150.3) ¥ 1,247.0 Fiscal year ended March 31, 2022: Net revenue: ¥ 727.0 ¥ 600.6 ¥ 620.6 ¥ 781.4 ¥ 348.9 ¥ 527.2 ¥ 3,605.7 ¥ 427.0 ¥ 27.2 ¥ 4,059.9 BK and TB (1) : 260.4 388.6 495.2 1.9 106.4 361.7 1,614.2 203.4 53.7 1,871.3 Net interest income 219.0 166.5 230.6 2.1 9.3 170.5 798.0 219.9 134.7 1,152.6 Net fees 38.4 201.3 211.6 — 97.1 189.0 737.4 (10.7) (70.1) 656.6 Other 3.0 20.8 53.0 (0.2) — 2.2 78.8 (5.8) (10.9) 62.1 Other than BK and TB 466.6 212.0 125.4 779.5 242.5 165.5 1,991.5 223.6 (26.5) 2,188.6 Operating expenses 554.6 495.9 319.2 538.0 241.3 288.9 2,437.9 250.0 139.6 2,827.5 Operating profit (loss) ¥ 172.4 ¥ 104.7 ¥ 301.4 ¥ 243.4 ¥ 107.6 ¥ 238.3 ¥ 1,167.8 ¥ 177.0 ¥ (112.4) ¥ 1,232.4 Fixed assets (2) ¥ 140.6 ¥ 191.7 ¥ 155.8 ¥ 1.0 ¥ 13.3 ¥ 133.0 ¥ 635.4 ¥ 108.4 ¥ 550.3 ¥ 1,294.1 Notes: (1) “BK and TB” is a sum of MUFG Bank on a stand-alone basis and Mitsubishi UFJ Trust and Banking on a stand-alone basis. (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
Reconciliation of Operating Profit (Loss) from Segments to Consolidated Statements of Income	A reconciliation of operating profit and fixed assets under the internal management reporting system for the fiscal years ended March 31, 2020, 2021 and 2022 above to income before income tax expense shown in the accompanying consolidated statements of operations and the total amount of premises and equipment-net, intangible assets-net and goodwill are as follows: 2020 2021 2022 (in billions) Operating profit: ¥ 1,174 ¥ 1,247 ¥ 1,232 Provision for credit losses (322) (484) (278) Trading account profits (losses)—net 920 (678) (1,174) Equity investment securities gains (losses)—net (618) 1,480 (109) Debt investment securities gains (losses)—net (403) (129) 139 Foreign exchange gains (losses)—net (145) 9 (9) Equity in earnings of equity method investees—net 283 356 437 Impairment of goodwill (384) (148) — Impairment of intangible assets (4) (22) (33) Reversal of (provision for) off-balance sheet credit instruments 62 57 (46) Impairment of assets held for sale — — (134) Other—net (130) (80) (84) Income (loss) before income tax expense (benefit) ¥ 433 ¥ 1,608 ¥ (59) Fixed assets: ¥ — ¥ — ¥ 1,294 U.S. GAAP adjustments and other — — 974 Premises and equipment-net, Intangible assets-net and Goodwill ¥ — ¥ — ¥ 2,268

Foreign Activities (Tables)

Foreign Activities (Tables)	12 Months Ended
	Mar. 31, 2022
Segments, Geographical Areas [Abstract]
Estimated Financial Information by Geographic Areas	The following table sets forth estimated total assets at March 31, 2020, 2021 and 2022, and estimated total revenue, total expense, income (loss) before income tax expense (benefit) and net income (loss) attributable to Mitsubishi UFJ Financial Group for the respective fiscal years then ended: Domestic Foreign Total Japan United States of America Europe Asia/ Oceania excluding Japan Other areas (1) (in millions) Fiscal year ended March 31, 2020: Total revenue (2) ¥ 1,596,794 ¥ 2,223,984 ¥ 89,412 ¥ 1,326,426 ¥ 566,222 ¥ 5,802,838 Total expense (3) 2,565,895 1,051,164 218,623 1,174,200 359,736 5,369,618 Income (loss) before income tax expense (benefit) (969,101) 1,172,820 (129,211) 152,226 206,486 433,220 Net income (loss) attributable to Mitsubishi UFJ Financial Group (1,001,477) 1,113,913 (140,372) 142,568 191,323 305,955 Total assets at end of fiscal year 207,532,337 60,587,867 19,099,410 30,845,864 13,687,805 331,753,283 Fiscal year ended March 31, 2021: Total revenue (2) ¥ 3,348,733 ¥ 741,137 ¥ 356,112 ¥ 1,134,233 ¥ 329,568 ¥ 5,909,783 Total expense (3) 2,316,323 713,441 263,753 889,494 118,430 4,301,441 Income before income tax expense 1,032,410 27,696 92,359 244,739 211,138 1,608,342 Net income (loss) attributable to Mitsubishi UFJ Financial Group 627,138 (231,116) 74,230 366,880 280,166 1,117,298 Total assets at end of fiscal year 240,603,939 49,478,851 21,126,639 31,368,443 11,246,753 353,824,625 Fiscal year ended March 31, 2022: Total revenue (2) ¥ 2,160,509 ¥ 500,590 ¥ 67,687 ¥ 975,340 ¥ 221,601 ¥ 3,925,727 Total expense (3) 2,198,650 666,564 311,639 726,042 81,559 3,984,454 Income (loss) before income tax expense (benefit) (38,141) (165,974) (243,952) 249,298 140,042 (58,727) Net income (loss) attributable to Mitsubishi UFJ Financial Group (7,380) (498,205) (344,044) 506,621 259,688 (83,320) Total assets at end of fiscal year (4) 246,637,054 54,576,602 22,319,350 31,909,321 12,207,691 367,650,018 Notes: (1) Other areas primarily include Canada, Latin America, the Caribbean and the Middle East. (2) Total revenue is comprised of Interest income and Non-interest income. (3) Total expense is comprised of Interest expense, Provision for credit losses and Non-interest expense. (4) Total assets at the fiscal year ended March 31, 2022 in this table includes those relating to Financial assets and liabilities of transferred business of MUFG Union Bank. See Note 2 for more information.
Analysis of Certain Asset and Liability Accounts Related to Foreign Activities	The following is an analysis of certain asset and liability accounts related to foreign activities at March 31, 2021 and 2022: 2021 2022 (in millions) Cash and due from banks ¥ 1,090,501 ¥ 1,050,661 Interest-earning deposits in other banks 12,377,887 12,459,897 Total ¥ 13,468,388 ¥ 13,510,558 Trading account assets ¥ 28,525,243 ¥ 26,849,102 Investment securities ¥ 8,694,138 ¥ 7,157,322 Loans—net of unearned income, unamortized premiums and deferred loan fees ¥ 47,333,878 ¥ 45,338,581 Deposits ¥ 55,145,437 ¥ 46,932,643 Funds borrowed: Call money, funds purchased ¥ 323,066 ¥ 306,053 Payables under repurchase agreements 10,974,238 10,769,853 Payables under securities lending transactions 130,380 144,854 Other short-term borrowings 3,474,821 3,940,997 Long-term debt 2,421,267 1,596,146 Total ¥ 17,323,772 ¥ 16,757,903 Trading account liabilities ¥ 5,575,956 ¥ 5,919,017

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value by Level 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, 2021 and 2022: At March 31, 2021 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 18,439,146 ¥ 13,165,127 ¥ 756,413 ¥ 32,360,686 Debt securities Japanese national government and Japanese government agency bonds 6,800,379 401,454 — 7,201,833 Japanese prefectural and municipal bonds — 193,936 — 193,936 Foreign government and official institution bonds 9,508,030 450,443 1,280 9,959,753 Corporate bonds 5,123 2,706,611 77 2,711,811 Residential mortgage-backed securities 27 6,166,313 1,000 6,167,340 Asset-backed securities — 1,045,706 336,811 1,382,517 Other debt securities — — 277,635 277,635 Commercial paper — 1,001,233 — 1,001,233 Equity securities (2) 2,125,587 1,199,431 139,610 3,464,628 Trading derivative assets 136,515 11,774,865 70,058 11,981,438 Interest rate contracts 23,906 7,673,031 21,018 7,717,955 Foreign exchange contracts 929 3,896,713 12,520 3,910,162 Equity contracts 111,680 113,586 6,309 231,575 Commodity contracts — 1 26,896 26,897 Credit derivatives — 91,534 2,354 93,888 Other (7) — — 961 961 Investment securities: Available-for-sale debt securities 34,010,613 12,817,584 289,616 47,117,813 Japanese national government and Japanese government agency bonds 32,073,409 3,199,802 — 35,273,211 Japanese prefectural and municipal bonds — 3,731,513 — 3,731,513 Foreign government and official institution bonds 1,937,204 973,041 16,718 2,926,963 Corporate bonds — 1,134,108 162 1,134,270 Residential mortgage-backed securities — 1,467,115 15 1,467,130 Commercial mortgage-backed securities — 462,966 1,599 464,565 Asset-backed securities — 1,247,565 136,920 1,384,485 Other debt securities — 37,376 134,202 171,578 Commercial paper — 564,098 — 564,098 Equity securities 5,530,077 229,415 45,569 5,805,061 Marketable equity securities 5,530,077 229,415 — 5,759,492 Nonmarketable equity securities (3) — — 45,569 45,569 Other (4) 1,202,230 42,687 18,784 1,263,701 Total ¥ 59,318,581 ¥ 38,029,678 ¥ 1,180,440 ¥ 98,528,699 At March 31, 2021 Level 1 Level 2 Level 3 Fair Value (in millions) Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 260,149 ¥ 989 ¥ — ¥ 261,138 Trading derivative liabilities 150,750 11,560,634 45,031 11,756,415 Interest rate contracts 10,696 7,343,594 6,839 7,361,129 Foreign exchange contracts 977 4,015,927 5,237 4,022,141 Equity contracts 139,077 92,655 5,686 237,418 Commodity contracts — 1 26,959 26,960 Credit derivatives — 108,457 83 108,540 Other (7) — — 227 227 Obligation to return securities received as collateral (5) 6,484,452 97,307 — 6,581,759 Other (6) — 558,553 (2,212) 556,341 Total ¥ 6,895,351 ¥ 12,217,483 ¥ 42,819 ¥ 19,155,653 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 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 were ¥102,255 million and ¥179,278 million at March 31, 2021 and 2022, respectively. The amounts of unfunded commitments related to these private equity funds were ¥97,413 million and ¥110,360 million at March 31, 2021 and 2022, respectively. (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, 2021 were ¥27,395 million and ¥34,390 million, respectively, and those at March 31, 2022 were ¥30,142 million and ¥39,462 million, respectively. The amounts of unfunded commitments related to these real estate funds and private equity and other funds at March 31, 2021 were ¥1,006 million and ¥4,758 million, respectively, and those at March 31, 2022 were ¥1,011 million and nil, respectively. (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.
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. March 31, 2020 Total gains (losses) for the period March 31, 2021 Change in Included Included Purchases Issues Sales Settlements Transfers Transfers out of Level 3 (in millions) Assets Trading account assets: Trading securities (1) ¥ 525,946 ¥ 21,730 (2) ¥ — ¥ 352,917 ¥ — ¥ (189,980) ¥ (117,399) ¥ 190,391 ¥ (27,192) ¥ 756,413 ¥ 23,477 (2) Debt securities Foreign government and official institution bonds 1,052 625 — 49,637 — (49,927) (59) — (48) 1,280 159 Corporate bonds 144 31 — 82 — (180) — — — 77 (5) Residential mortgage-backed securities — — — 51,533 — (50,533) — — — 1,000 — Asset-backed securities 416,259 12,808 — 106,308 — (83,700) (114,864) — — 336,811 16,309 Other debt securities 6,651 11,096 — 69,499 — — — 190,389 (8) — 277,635 11,096 Equity securities 101,840 (2,830) — 75,858 — (5,640) (2,476) 2 (27,144) (8) 139,610 (4,082) Trading derivatives—net 3,477 45,361 (2) (104) 597 (653) — (20,689) (2,159) (803) 25,027 31,184 (2) Interest rate contracts—net (750) 14,401 (32) — — — 1,405 (99) (746) 14,179 11,807 Foreign exchange contracts—net 5,005 3,743 (128) — — — 140 (1,480) 3 7,283 3,812 Equity contracts—net (4,222) 27,299 55 3 — — (21,944) (580) 12 623 15,660 Commodity contracts—net (65) 1 1 — — — — — — (63) 1 Credit derivatives—net 2,727 (166) — — — — (290) — — 2,271 (182) Other—net (9) 782 83 — 594 (653) — — — (72) 734 86 Investment securities: Available-for-sale debt securities 274,930 6,710 (3) (14,559) 308,672 — (11) (276,234) 70 (9,962) 289,616 (2,779) (3) Foreign government and official institution bonds 15,767 — (888) 3,518 — — (1,679) — — 16,718 473 Corporate bonds 10,108 (8) (1) — — — (45) 70 (9,962) (5) 162 (10) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed 1,977 — (346) — — (11) (21) — — 1,599 (163) Asset-backed securities 140,875 6,718 (7,958) 267,767 — — (270,482) — — 136,920 (4,047) Other debt securities 106,188 — (5,366) 37,387 — — (4,007) — — 134,202 968 Equity securities 39,963 (3,231) (3) — 10,481 — (1,725) — 285 (204) 45,569 (4,150) (3) Nonmarketable equity securities 39,963 (3,231) — 10,481 — (1,725) — 285 (204) 45,569 (4,150) Other 36,701 (18,626) (7) (1,349) 2,346 — (18) (270) — — 18,784 (18,620) (7) Total ¥ 881,017 ¥ 51,944 ¥ (16,012) ¥ 675,013 ¥ (653) ¥ (191,734) ¥ (414,592) ¥ 188,587 ¥ (38,161) ¥ 1,135,409 ¥ 29,112 Liabilities Other ¥ 6,606 ¥ (32,946) (4) ¥ 937 ¥ — ¥ 5,336 ¥ — ¥ (27,823) ¥ (7,686) (6) ¥ (10,654) (6) ¥ (2,212) ¥ (17,043) (4) Total ¥ 6,606 ¥ (32,946) ¥ 937 ¥ — ¥ 5,336 ¥ — ¥ (27,823) ¥ (7,686) ¥ (10,654) ¥ (2,212) ¥ (17,043) March 31, 2021 Total gains (losses) for the period Purchases Issues Sales Settlements Transfers into Level 3 (10) Transfers out of Level 3 (10) March 31, 2022 Change in Included Included (in millions) Assets Trading account assets: Trading securities (1) ¥ 756,413 ¥ 41,919 (2) ¥ — ¥ 458,395 ¥ — ¥ (197,245) ¥ (262,150) ¥ 665 ¥ — ¥ 797,997 ¥ 40,113 (2) Debt securities Foreign government and official institution bonds 1,280 287 — 31,591 — (31,432) (15) — — 1,711 47 Corporate bonds 77 (68) — 126 — (100) — 648 — 683 (69) Residential mortgage-backed securities 1,000 (2) — 97,197 — (98,176) (19) — — — — Asset-backed securities 336,811 26,692 — 270,974 — (67,500) (251,746) — — 315,231 27,693 Other debt securities 277,635 14,179 — 21,352 — — — — — 313,166 14,179 Equity securities 139,610 831 — 37,155 — (37) (10,370) 17 — 167,206 (1,737) Trading derivatives—net 25,027 23,754 (2) 1,882 51 (674) — (16,312) 41,076 (3,715) 71,089 46,149 (2) Interest rate contracts—net 14,179 (25,977) 824 — — — 9,696 39,609 (5) (838) 37,493 4,410 Foreign exchange contracts—net 7,283 2,403 206 21 — — 1,833 1,467 (5,750) 7,463 (1,640) Equity contracts—net 623 46,579 858 30 — — (27,543) — 2,873 23,420 42,546 Commodity contracts—net (63) 30 (6) — — — (6) — — (45) 30 Credit derivatives—net 2,271 750 — — — — (292) — — 2,729 819 Other—net (9) 734 (31) — — (674) — — — — 29 (16) Investment securities: Available-for-sale debt securities 289,616 277 (3) 25,143 236,786 — — (287,747) 15,651 (66,790) 212,936 12,545 (3) Foreign government and official institution bonds 16,718 — 607 5,163 — — (5,964) — (4,634) 11,890 87 Corporate bonds 162 (328) 68 557 — — (114) 2,854 (110) 3,089 (265) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed securities 1,599 — 104 — — — (524) — (1,179) — — Asset-backed securities 136,920 580 14,066 231,039 — — (258,226) — — 124,379 6,651 Other debt securities 134,202 25 10,298 27 — — (22,919) 12,797 (8) (60,867) 73,563 6,072 Equity securities 45,569 5,856 (3) — 9,899 — (3,113) — 130 (2,458) 55,883 3,960 (3) Nonmarketable equity securities 45,569 5,856 — 9,899 — (3,113) — 130 (2,458) 55,883 3,960 Other 18,784 (402) (7) 1,049 2,369 — (4,612) (202) — (12,074) 4,912 1,245 (7) Assets held for sale — (2,589) (11) 4,234 770 — — (4,247) 78,750 — 76,918 1,461 (11) Investment securities — (963) 3,791 1 — — (4,247) 66,680 — 65,262 5,737 Other — (1,626) 443 769 — — — 12,070 — 11,656 (4,276) Total ¥ 1,135,409 ¥ 68,815 ¥ 32,308 ¥ 708,270 ¥ (674) ¥ (204,970) ¥ (570,658) ¥ 136,272 ¥ (85,037) ¥ 1,219,735 ¥ 105,473 Liabilities Other ¥ (2,212) ¥ 8,315 (4) ¥ (3,080) ¥ — ¥ 36,535 ¥ — ¥ (19,361) ¥ 5,364 (6) ¥ 1,372 (6) ¥ 16,463 ¥ 15,532 (4) Total ¥ (2,212) ¥ 8,315 ¥ (3,080) ¥ — ¥ 36,535 ¥ — ¥ (19,361) ¥ 5,364 ¥ 1,372 ¥ 16,463 ¥ 15,532 Notes: (1) Includes Trading securities measured under the fair value option. (2) Included in Trading account profits (losses)—net and Foreign exchange gains (losses)—net. (3) Included in Investment securities gains (losses)—net and Other comprehensive income—net. (4) Included in Trading account profits (losses)—net. (5) 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 input includes loss given default. Transfers out of Level 3 for Corporate bonds were due to changes in the impact of unobservable credit worthiness inputs to the entire fair value measurement of the private placement bonds issued by Japanese non-public companies. Unobservable credit worthiness inputs include probability of default based on credit ratings of the bond issuers and loss given default. (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) Includes the reclassification of assets and liabilities in transferred business of MUFG Union Bank to assets and liabilities held for sale.
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, 2021 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted average (2) (in millions) Assets Trading securities and Investment securities: Foreign government and official institution bonds ¥ 16,718 Return on equity method Probability of default 0.2%~1.8% 0.5 % Recovery rate 35.0%~90.0% 66.9 % Market-required return on capital 8.0%~10.0% 10.0 % Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities 89,607 Discounted cash flow Probability of default 4.3%~4.9% 4.7 % Recovery rate 78.0%~96.6% 90.6 % 279,547 Internal model (4) Asset correlations 3.0% 3.0 % Discount factor 1.3%~1.6% 1.3 % Prepayment rate 18.3% 18.3 % Probability of default 0.0%~83.7% — (3) Recovery rate 57.4% 57.4 % Other debt securities 313,895 Discounted cash flow Liquidity premium 1.0%~3.2% 2.9 % 79,541 Return on equity method Probability of default 0.0%~8.0% 0.4 % Recovery rate 60.0%~90.0% 78.8 % Market-required return on capital 8.0%~10.0% 10.0 % At March 31, 2021 Fair value (1) Valuation technique Significant unobservable inputs Range Median (2) (in millions) Trading derivatives—net: Interest rate contracts—net 12,841 Option model Correlation between interest rates 30.0%~61.9% 44.8 % Correlation between interest rate and foreign exchange rate 15.1%~60.0% 41.6 % Volatility 0.0%~100.0% 65.0 % Foreign exchange contracts—net 7,283 Option model Correlation between interest rates 10.0%~70.0% 51.0 % Correlation between interest rate and foreign exchange rate 0.0%~60.0% 38.9 % Correlation between foreign exchange rates 50.0%~70.6% 66.4 % Volatility 9.5%~22.1% 13.7 % Equity contracts—net (4,597) Option model Correlation between foreign exchange rate and equity (58.4)%~55.0% 26.2 % Correlation between equities 15.0%~95.0% 54.0 % Volatility 27.5%~40.0% 31.8 % 5,557 Discounted cash flow Term of litigation 0.0 year ~1.2 years 0.6 year 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 Notes: (1) The fair value as of March 31, 2021 and 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 “Changes in and range of unobservable inputs.” (4) For further detail of Internal model, refer to the last paragraph of “Trading Account Assets and Liabilities—Trading Account Securities.”
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, 2021 and 2022: 2021 2022 Level 1 Level 2 Level 3 Total carrying value Level 1 Level 2 Level 3 Total carrying value (in millions) Assets (3) Investment securities (1)(2) ¥ — ¥ 32,421 ¥ 8,357 ¥ 40,778 ¥ — ¥ 9,839 ¥ 11,158 ¥ 20,997 Loans 2,667 5,125 255,676 263,468 2,175 3,153 236,622 241,950 Loans held for sale — — 52,159 52,159 — — 42,994 42,994 Collateral dependent loans 2,667 5,125 203,517 211,309 2,175 3,153 193,628 198,956 Premises and equipment — — 15,243 15,243 — — 17,301 17,301 Intangible assets — — 2,421 2,421 — — 359 359 Goodwill — — 132,976 132,976 — — — — Other assets 111,626 33,840 24,512 169,978 11,880 — 17,282 29,162 Investments in equity method investees (1) 111,626 33,840 8,384 153,850 11,880 — 1,035 12,915 Other — — 16,128 16,128 — — 16,247 16,247 Assets held for sale — — — — — — 255,002 255,002 Loans held for sale — — — — — — 255,002 255,002 Total ¥ 114,293 ¥ 71,386 ¥ 439,185 ¥ 624,864 ¥ 14,055 ¥ 12,992 ¥ 537,724 ¥ 564,771 Notes: (1) Excludes certain investments valued at net asset value of ¥24,319 million and ¥26,644 million at March 31, 2021 and 2022, respectively. The unfunded commitments related to these investments are ¥19,101 million and ¥22,197 million at March 31, 2021 and 2022, respectively. These investments are in private equity funds. (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 will be transferred to U.S. Bancorp, were reclassified as held for sale. As a result, the disposal group was measured at fair value less expected costs to sell which was lower than its carrying amount. The amount of the fair value is ¥1,992,632 million as of March 31, 2022 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 fiscal years ended March 31, 2021 and 2022: 2021 2022 (in millions) Investment securities ¥ (16,522) ¥ 1,232 Loans 116,849 30,638 Loans held for sale 959 1,893 Collateral dependent loans 115,890 28,745 Premises and equipment 11,548 5,701 Intangible assets 19,200 10,412 Goodwill 147,564 — Other assets 111,374 27,268 Investments in equity method investees 53,758 6,949 Other 57,616 20,319 Assets held for sale — 3,165 Loans held for sale — 3,165 Total (1) ¥ 390,013 ¥ 78,416 Note: (1) In addition to the above table, the assets and liabilities of MUFG Union Bank, which will be transferred to U.S. Bancorp, were reclassified as held for sale. As a result, the disposal group was measured at fair value less expected costs to sell which was lower than its carrying amount. The impairment of assets held for sale was ¥134,141 million for the fiscal year ended March 31,2022.
Gains (Losses) Related to Instruments for which Fair Value Option was Elected	The following table presents the gains or losses recorded for the fiscal years ended March 31, 2020, 2021 and 2022 related to the eligible instruments for which the MUFG Group elected the fair value option: 2020 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 Trading account profits (losses) Foreign exchange gains (losses) Total changes in fair value (in millions) Financial assets: Trading account securities ¥ 837,832 ¥ (596,017) ¥ 241,815 ¥ (370,238) ¥ 723,505 ¥ 353,267 ¥ (984,605) ¥ 1,752,995 ¥ 768,390 Total ¥ 837,832 ¥ (596,017) ¥ 241,815 ¥ (370,238) ¥ 723,505 ¥ 353,267 ¥ (984,605) ¥ 1,752,995 ¥ 768,390 Financial liabilities: Other short-term borrowings (1) ¥ 5,194 ¥ — ¥ 5,194 ¥ (6,484) ¥ — ¥ (6,484) ¥ 5,552 ¥ — ¥ 5,552 Long-term debt (1) (8,087) — (8,087) 1,523 — 1,523 50,082 — 50,082 Total ¥ (2,893) ¥ — ¥ (2,893) ¥ (4,961) ¥ — ¥ (4,961) ¥ 55,634 ¥ — ¥ 55,634 Note:
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, 2021 and 2022 for long-term debt instruments for which the fair value option has been elected: 2021 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 ¥ 420,227 ¥ 402,823 ¥ (17,404) ¥ 511,851 ¥ 483,051 ¥ (28,800) Total ¥ 420,227 ¥ 402,823 ¥ (17,404) ¥ 511,851 ¥ 483,051 ¥ (28,800)
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 consolidated balance sheets as of March 31, 2021 and 2022: Carrying amount Estimated fair value At March 31, 2021 Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 49,977 ¥ 49,977 ¥ 49,977 ¥ — ¥ — Interest-earning deposits in other banks 53,347 53,347 — 53,347 — Call loans and funds sold 1,256 1,256 — 1,256 — Receivables under resale agreements 13,780 13,780 — 13,780 — Receivables under securities borrowing transactions 3,370 3,370 — 3,370 — Investment securities 3,904 3,939 1,123 780 2,036 Loans, net of allowance for credit losses (1) 114,350 115,709 3 298 115,408 Other financial assets (2) 8,108 8,108 — 8,108 — Financial liabilities: Deposits Non-interest-bearing ¥ 38,521 ¥ 38,521 ¥ — ¥ 38,521 ¥ — Interest-bearing 190,695 190,712 — 190,712 — Total deposits 229,216 229,233 — 229,233 — Call money and funds purchased 2,354 2,354 — 2,354 — Payables under repurchase agreements 24,568 24,568 — 24,568 — Payables under securities lending transactions 843 843 — 843 — Due to trust account and other short-term borrowings 17,883 17,883 — 17,883 — Long-term debt 34,773 35,042 — 35,042 — Other financial liabilities 7,027 7,027 — 7,027 — Carrying amount Estimated fair value At March 31, 2022 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 — 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.

Parent Company Only Financial_2

Parent Company Only Financial Information (Tables)	12 Months Ended
	Mar. 31, 2022
Condensed Financial Information Disclosure [Abstract]
Condensed Balance Sheets	The following table presents the parent company only financial information of MUFG: Condensed Balance Sheets As of March 31, 2021 2022 (in millions) Assets: Cash and interest-earning deposits with banking subsidiaries ¥ 229,380 ¥ 231,389 Investments in subsidiaries and affiliated companies 16,658,522 16,504,756 Banking subsidiaries 12,793,367 11,731,745 Non-banking subsidiaries and affiliated companies 3,865,155 4,773,011 Loans to subsidiaries 9,208,439 10,062,030 Banking subsidiaries 8,690,696 9,516,847 Non-banking subsidiaries 517,743 545,183 Other assets 197,231 266,773 Total assets ¥ 26,293,572 ¥ 27,064,948 Liabilities and Shareholders’ equity: Short-term borrowings from banking subsidiaries ¥ 1,206,694 ¥ 1,146,147 Long-term debt from non-banking subsidiaries and affiliated companies 15,897 24,535 Long-term debt 9,226,046 10,055,876 Other liabilities 183,986 233,322 Total liabilities 10,632,623 11,459,880 Total shareholders’ equity 15,660,949 15,605,068 Total liabilities and shareholders’ equity ¥ 26,293,572 ¥ 27,064,948
Condensed Statements of Income	Condensed Statements of Operations Fiscal years ended March 31, 2020 2021 2022 (in millions) Income: Dividends from subsidiaries and affiliated companies ¥ 376,376 ¥ 404,064 ¥ 586,108 Banking subsidiaries 277,472 317,453 419,691 Non-banking subsidiaries and affiliated companies 98,904 86,611 166,417 Management fees from subsidiaries 33,543 35,095 34,957 Interest income from subsidiaries 174,500 174,816 183,679 Foreign exchange gains—net 4,834 1,089 6,851 Trading account losses—net (37,272) (18,285) (4,059) Gains on sales of investment in subsidiaries and affiliated companies—net 67,406 95 — Other income 14,968 12,552 11,732 Total income 634,355 609,426 819,268 Expense: Operating expenses 30,431 37,567 40,158 Interest expense to subsidiaries and affiliated companies 26,244 11,415 12,256 Interest expense 155,774 159,057 167,057 Other expense 15,024 8,164 7,154 Total expense 227,473 216,203 226,625 Equity in undistributed net income (loss) of subsidiaries and affiliated companies—net (108,069) 727,257 (667,088) Income (loss) before income tax expense (benefit) 298,813 1,120,480 (74,445) Income tax expense (benefit) (7,142) 3,182 8,875 Net income (loss) ¥ 305,955 ¥ 1,117,298 ¥ (83,320)
Condensed Statements of Cash Flows	Condensed Statements of Cash Flows Fiscal years ended March 31, 2020 2021 2022 (in millions) Operating activities: Net income (loss) ¥ 305,955 ¥ 1,117,298 ¥ (83,320) Adjustments and other (1,704) (568,317) 653,768 Net cash provided by operating activities 304,251 548,981 570,448 Investing activities: Proceeds from redemption of other investment securities 240,000 — — Proceeds from sales of investment in subsidiaries and affiliated companies 135,581 35,081 136 Purchase of equity investment in subsidiaries and an affiliated company — — (1,000) Net increase in loans to subsidiaries (1,547,178) (462,208) (257,619) Other—net (12,572) (11,531) (9,413) Net cash used in investing activities (1,184,169) (438,658) (267,896) Financing activities: Net decrease in short-term borrowings from subsidiaries (164,272) (49,058) (61,415) Proceeds from issuance of long-term debt 1,844,488 831,121 1,625,173 Repayment of long-term debt (214,994) (514,436) (1,369,254) Repayment of long-term debt to affiliated companies (241,000) (10,500) — Proceeds from sales of treasury stock 2 1 — Payments for acquisition of treasury stock (50,022) (13) (150,017) Dividends paid (304,538) (321,772) (334,620) Other—net (7,791) (1,954) (10,410) Net cash provided by (used in) financing activities 861,873 (66,611) (300,543) Net increase (decrease) in cash and cash equivalents (18,045) 43,712 2,009 Cash and cash equivalents at beginning of fiscal year 203,713 185,668 229,380 Cash and cash equivalents at end of fiscal year ¥ 185,668 ¥ 229,380 ¥ 231,389

Basis of Financial Statements_4

Basis of Financial Statements and Summary of Significant Accounting Policies (Narrative) (Detail) - JPY (¥) ¥ in Millions	3 Months Ended					12 Months Ended
	Mar. 31, 2022		Mar. 31, 2021		Mar. 31, 2020	Mar. 31, 2022		Apr. 01, 2020	Mar. 31, 2019
Basis of financial statements:
Increase (decrease) to net income attributable to Mitsubishi UFJ Financial Group not recognized for the fiscal year	¥ 60,640		¥ 157,320		¥ 164,480
Summary of significant accounting policies:
Floor percentage of the corridor defined for the amortization of net actuarial gains and losses						10%
Accounting changes:
Financing receivable, allowance for credit loss	1,470,701	[1]	1,348,391	[1]	809,540	¥ 1,470,701	[1]		¥ 658,184
Equity, including portion attributable to noncontrolling interest	(16,296,522)		(16,244,554)		(15,744,516)	(16,296,522)
Unappropriated retained earnings
Accounting changes:
Equity, including portion attributable to noncontrolling interest	(8,172,646)		(8,589,900)		(8,079,530)	¥ (8,172,646)			(8,094,026)
Minimum
Summary of significant accounting policies:
Threshold of "more likely than not" recognition for a tax position						50%
Effect of adopting new guidance on measurement of credit losses on financial instruments (Note 1) | Revision of Prior Period, Accounting Standards Update, Adjustment
Accounting changes:
Financing receivable, allowance for credit loss								¥ 408,100
Effect of adopting new guidance on measurement of credit losses on financial instruments (Note 1) | Revision of Prior Period, Accounting Standards Update, Adjustment | Unappropriated retained earnings
Accounting changes:
Equity, including portion attributable to noncontrolling interest	0		285,838		0	¥ 0		¥ 285,800
Commercial
Accounting changes:
Financing receivable, allowance for credit loss	934,086		734,577		482,275	¥ 934,086			389,615
Commercial | Forecast
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year						3 years
Commercial | Average historic loss
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year						2 years
Commercial | Minimum
Summary of significant accounting policies:
Loans contractually past due before being placed on nonaccrual status, in month						1 month
Card
Accounting changes:
Financing receivable, allowance for credit loss	40,768		44,217		35,180	¥ 40,768			32,550
Card | Forecast
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year						3 years
Card | Minimum
Summary of significant accounting policies:
Loans contractually past due before being placed on nonaccrual status, in month						3 months
MUAH
Accounting changes:
Financing receivable, allowance for credit loss	30,365		131,755		58,995	¥ 30,365			52,581
MUAH | Forecast
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year						3 years
MUAH | Average historic loss
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year						2 years
MUAH | Minimum
Summary of significant accounting policies:
Loans contractually past due before being placed on nonaccrual status, in month						3 months
Krungsri
Accounting changes:
Financing receivable, allowance for credit loss	322,386		293,396		169,626	¥ 322,386			144,812
Krungsri | Minimum
Summary of significant accounting policies:
Loans contractually past due before being placed on nonaccrual status, in month						3 months
Residential
Accounting changes:
Financing receivable, allowance for credit loss	¥ 69,887		¥ 82,893		¥ 34,746	¥ 69,887			¥ 38,626
Residential | Forecast
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year						3 years
Residential | Average historic loss
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year						2 years
Residential | Minimum
Summary of significant accounting policies:
Loans contractually past due before being placed on nonaccrual status, in month						6 months
[1]New guidance on measurement of credit losses on financial instruments requires the allowance for credit losses to be measured using the current expected credit losses model from April 1, 2020. For additional information, refer to Note 1.

Basis of Financial Statements_5

Basis of Financial Statements and Summary of Significant Accounting Policies (Estimated Useful Lives of Premises and Equipment) (Detail)	12 Months Ended
	Mar. 31, 2022
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Premises and equipment, Useful life, years	15 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Premises and equipment, Useful life, years	50 years
Equipment and furniture | Minimum
Property, Plant and Equipment [Line Items]
Premises and equipment, Useful life, years	2 years
Equipment and furniture | Maximum
Property, Plant and Equipment [Line Items]
Premises and equipment, Useful life, years	20 years
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Premises and equipment, Useful life, years	2 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Premises and equipment, Useful life, years	39 years

Basis of Financial Statements_6

Basis of Financial Statements and Summary of Significant Accounting Policies (Useful Lives of Intangible Assets and Amortization Method by Major Class) (Detail)	12 Months Ended
	Mar. 31, 2022
Software | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Useful life, years	3 years
Software | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Useful life, years	10 years
Core deposit intangibles | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Useful life, years	9 years
Core deposit intangibles | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Useful life, years	16 years
Customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Useful life, years	3 years
Customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Useful life, years	27 years
Trade names | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Useful life, years	10 years
Trade names | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Useful life, years	40 years

Business Developments (Narrativ

Business Developments (Narrative) (Detail) ¥ / shares in Units, Rp / shares in Units, ¥ in Millions, Rp in Billions										11 Months Ended	12 Months Ended
	Nov. 18, 2019 JPY (¥)	Aug. 02, 2019 JPY (¥) Subsidiaries	Apr. 29, 2019 JPY (¥) ¥ / shares	Apr. 29, 2019 IDR (Rp)	Apr. 28, 2019 JPY (¥)	Aug. 03, 2018 JPY (¥)	Aug. 03, 2018 IDR (Rp) shares Rp / shares	Dec. 29, 2017 JPY (¥)	Dec. 29, 2017 IDR (Rp) shares step Rp / shares	Mar. 31, 2020 JPY (¥)	Mar. 31, 2022 JPY (¥) Offices	Mar. 31, 2021 JPY (¥)	Mar. 31, 2020 JPY (¥)	Feb. 18, 2020 JPY (¥)	May 01, 2019	Apr. 29, 2019 Rp / shares	Aug. 03, 2018 shares ¥ / shares	Dec. 29, 2017 shares step ¥ / shares	Dec. 26, 2017
Business Developments [Line Items]
Goodwill										¥ 517,626	¥ 303,611	¥ 370,852	¥ 517,626
Remeasurement profits											0	0	41,218
Goodwill purchase accounting adjustments												1,105
Impairment of assets held for sale											134,141	0	0
Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Business Developments [Line Items]
Impairment of assets held for sale											134,141
Loss from discontinued operation before income tax											¥ 11,385	¥ 52,021	80,479
Customer relationships
Business Developments [Line Items]
Weighted average amortization period, in years											6 years	21 years
Bank Danamon
Business Developments [Line Items]
Final expected equity interest																			73.80%
Number of offices in Indonesia | Offices											900
Number of steps | step									3									3
Voting interests acquired									19.90%									19.90%
Price per share paid (in IDR/Yen per share) | (per share)			¥ 77				Rp 8,921		Rp 8,323							Rp 9,590	¥ 69	¥ 70
Investment amount paid			¥ 397,000	Rp 50,000		¥ 132,300	Rp 17,187	¥ 133,000	Rp 15,875
Price book-value ratio | shares							2		2								2	2
Additional equity interests acquired, in percentage			54%	54%		20.10%	20.10%
Equity interest in acquiree, including subsequent acquisition,			94%				40%								94.10%		40%
Goodwill			¥ 254,271
Intangible assets			146,899
Noncontrolling interests, recorded on acquisition			¥ 51,314
Equity interest remeasured to fair value					¥ 271,830
Remeasurement profits												¥ 41,218
Acquisition-related costs													869
Revenue of acquiree since acquisition date										119,331
Loss of acquiree since acquisition date										4,553
Exchange rate of IDR			0.0080				0.0077		0.0084								0.0077	0.0084
Weighted average amortization period, in years			10 years 1 month 6 days	10 years 1 month 6 days
Total assets			¥ 1,728,480
Total liabilities			1,242,115
Bank Danamon | Customer relationships
Business Developments [Line Items]
Intangible assets			¥ 79,552
Weighted average amortization period, in years			13 years 2 months 12 days	13 years 2 months 12 days
Bank Danamon | Estimated fair value
Business Developments [Line Items]
Loans not subject to the guidance on loans and debt securities acquired with deteriorated credit quality			¥ 1,068,906
Gross contractual amounts receivable for loans			1,082,422
Gross contractual amounts receivable for loans not expected to be collected			¥ 34,363
PT Bank Nusantara Parahyangan
Business Developments [Line Items]
Price per share paid (in IDR/Yen per share) | (per share)			¥ 33													Rp 4,088
Investment amount paid			¥ 24,100	Rp 3,000
Additional equity interests acquired, in percentage			92.10%	92.10%
Equity interest in acquiree, including subsequent acquisition,			99.90%
Exchange rate of IDR			0.0080
Colonial First State Group Limited
Business Developments [Line Items]
Voting interests acquired		100%
Goodwill		¥ 177,065
Intangible assets		¥ 105,973
Acquisition-related costs													3,775
Number of subsidiaries acquired | Subsidiaries		9
Payment in cash		¥ 312,225
Weighted average amortization period, in years		18 years 8 months 12 days
Colonial First State Group Limited | First sentier investors
Business Developments [Line Items]
Revenue of acquiree since acquisition date													38,508
Loss of acquiree since acquisition date													734
Colonial First State Group Limited | Customer relationships
Business Developments [Line Items]
Intangible assets		¥ 100,862
Weighted average amortization period, in years		18 years
Colonial First State Group Limited | Estimated fair value
Business Developments [Line Items]
Intangible assets										105,973			105,973
Total assets										197,867			197,867
Cash and bank deposits										42,019			42,019
Total liabilities										68,519			68,519
Accrued bonuses										¥ 18,769			¥ 18,769
DVB Bank SE finance division
Business Developments [Line Items]
Goodwill	¥ 32,591
Payment in cash	¥ 555,000
Total assets														¥ 522,797
Total liabilities														¥ 138

Business Developments ( Fair Va

Business Developments ( Fair Values of the Assets and Liabilities - Danamon and DVB Bank SE) (Detail) - JPY (¥) ¥ in Millions		12 Months Ended
	Apr. 29, 2019	Mar. 31, 2022	Mar. 31, 2021	Feb. 18, 2020
Customer relationships
Business Developments [Line Items]
Weighted average amortization period, in years		6 years	21 years
Bank Danamon
Business Developments [Line Items]
Loans	¥ 1,086,638
Intangible assets	146,899
Total assets	1,728,480
Deposits—Total deposits	915,075
Total liabilities	¥ 1,242,115
Weighted average amortization period, in years	10 years 1 month 6 days
Bank Danamon | Customer relationships
Business Developments [Line Items]
Intangible assets	¥ 79,552
Weighted average amortization period, in years	13 years 2 months 12 days
Bank Danamon | Core deposit intangibles
Business Developments [Line Items]
Intangible assets	¥ 44,140
Weighted average amortization period, in years	13 years 1 month 6 days
DVB Bank SE finance division
Business Developments [Line Items]
Loans				¥ 515,933
Total assets				522,797
Total liabilities				¥ 138

Business Developments - MUFG Un

Business Developments - MUFG Union Bank (Details) - Disposal group, disposed of by sale, not discontinued operations - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Assets held for sale:
Assets held for sale	¥ 11,621,567	¥ 0
Liabilities held for sale:
Other	11,157,660	¥ 0
MUFG Union Bank
Assets held for sale:
Interest-earning deposits in other banks	1,110,633
Investment securities	3,188,257
Loans, net of allowance for credit losses	6,561,316
Other	761,361
Assets held for sale	11,621,567
Liabilities held for sale:
Deposits	10,448,481
Other	709,179
Liabilities held for sale	¥ 11,157,660

Investment Securities (Amortize

Investment Securities (Amortized Cost, Gross Unrealized Gains (Losses) and Fair Value of Investment Securities) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	¥ 45,854,380	¥ 46,863,845
Available-for-sale debt securities, Gross unrealized gains	146,095	313,191
Available-for-sale debt securities, Gross unrealized losses	202,033	59,223
Available-for-sale debt securities, Fair value	45,798,442	47,117,813
Held-to-maturity debt securities, Amortized cost	4,595,109	3,903,763
Held-to-maturity debt securities, Gross unrealized gains	26,096	50,452
Held-to-maturity debt securities, Gross unrealized losses	14,900	15,072
Held-to-maturity debt securities, Fair value	4,606,305	3,939,143
Japanese national government and Japanese government agency bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	34,383,131	35,166,245
Available-for-sale debt securities, Gross unrealized gains	77,144	147,844
Available-for-sale debt securities, Gross unrealized losses	132,511	40,878
Available-for-sale debt securities, Fair value	34,327,764	35,273,211
Held-to-maturity debt securities, Amortized cost	1,808,312	1,100,447
Held-to-maturity debt securities, Gross unrealized gains	13,691	23,033
Held-to-maturity debt securities, Gross unrealized losses	3,633	0
Held-to-maturity debt securities, Fair value	1,818,370	1,123,480
Japanese prefectural and municipal bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	4,154,459	3,719,205
Available-for-sale debt securities, Gross unrealized gains	6,672	15,123
Available-for-sale debt securities, Gross unrealized losses	14,987	2,815
Available-for-sale debt securities, Fair value	4,146,144	3,731,513
Held-to-maturity debt securities, Amortized cost	175,072
Held-to-maturity debt securities, Gross unrealized gains	4
Held-to-maturity debt securities, Gross unrealized losses	1,116
Held-to-maturity debt securities, Fair value	173,960
Foreign government and official institution bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	2,671,797	2,854,037
Available-for-sale debt securities, Gross unrealized gains	8,586	84,707
Available-for-sale debt securities, Gross unrealized losses	49,040	11,781
Available-for-sale debt securities, Fair value	2,631,343	2,926,963
Held-to-maturity debt securities, Amortized cost		233,883
Held-to-maturity debt securities, Gross unrealized gains		2,262
Held-to-maturity debt securities, Gross unrealized losses		2,795
Held-to-maturity debt securities, Fair value		233,350
Corporate bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,081,620	1,123,271
Available-for-sale debt securities, Gross unrealized gains	9,601	11,400
Available-for-sale debt securities, Gross unrealized losses	1,073	401
Available-for-sale debt securities, Fair value	1,090,148	1,134,270
Residential mortgage-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	900,799	1,459,062
Available-for-sale debt securities, Gross unrealized gains	256	9,119
Available-for-sale debt securities, Gross unrealized losses	648	1,051
Available-for-sale debt securities, Fair value	900,407	1,467,130
Held-to-maturity debt securities, Amortized cost	234,652	411,024
Held-to-maturity debt securities, Gross unrealized gains	49	18,590
Held-to-maturity debt securities, Gross unrealized losses	8,778	0
Held-to-maturity debt securities, Fair value	225,923	429,614
Residential mortgage-backed securities | MUAH
Investment Securities [Line Items]
Unrealized losses before taxes remaining in accumulated OCI		4,849
Commercial mortgage-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost		435,975
Available-for-sale debt securities, Gross unrealized gains		29,502
Available-for-sale debt securities, Gross unrealized losses		912
Available-for-sale debt securities, Fair value		464,565
Held-to-maturity debt securities, Amortized cost		111,750
Held-to-maturity debt securities, Gross unrealized gains		4,846
Held-to-maturity debt securities, Gross unrealized losses		0
Held-to-maturity debt securities, Fair value		116,596
Commercial mortgage-backed securities | MUAH
Investment Securities [Line Items]
Unrealized losses before taxes remaining in accumulated OCI		1,920
Asset-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,547,098	1,373,450
Available-for-sale debt securities, Gross unrealized gains	41,544	11,685
Available-for-sale debt securities, Gross unrealized losses	222	650
Available-for-sale debt securities, Fair value	1,588,420	1,384,485
Held-to-maturity debt securities, Amortized cost	2,377,073	2,046,659
Held-to-maturity debt securities, Gross unrealized gains	12,352	1,721
Held-to-maturity debt securities, Gross unrealized losses	1,373	12,277
Held-to-maturity debt securities, Fair value	2,388,052	2,036,103
Other debt securities
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	104,869	168,528
Available-for-sale debt securities, Gross unrealized gains	2,243	3,780
Available-for-sale debt securities, Gross unrealized losses	3,533	730
Available-for-sale debt securities, Fair value	103,579	171,578
Commercial paper
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,010,607	564,072
Available-for-sale debt securities, Gross unrealized gains	49	31
Available-for-sale debt securities, Gross unrealized losses	19	5
Available-for-sale debt securities, Fair value	¥ 1,010,637	¥ 564,098

Investment Securities (Amorti_2

Investment Securities (Amortized Cost and Fair Value by Contractual Maturity) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Held-to-maturity debt securities, Amortized cost:
Due in one year or less	¥ 7,645
Due from one year to five years	1,243,939
Due from five years to ten years	2,251,995
Due after ten years	1,091,530
Held-to-maturity debt securities, Amortized cost	4,595,109	¥ 3,903,763
Held-to-maturity debt securities, Fair value:
Due in one year or less	7,647
Due from one year to five years	1,257,188
Due from five years to ten years	2,250,937
Due after ten years	1,090,533
Held-to-maturity debt securities, Fair value	4,606,305	3,939,143
Available-for-sale debt securities, Fair value:
Due in one year or less	23,510,044
Due from one year to five years	11,252,103
Due from five years to ten years	6,191,452
Due after ten years	4,844,843
Available-for-sale debt securities, Fair value	¥ 45,798,442	¥ 47,117,813

Investment Securities (Narrativ

Investment Securities (Narrative) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Investment Securities [Line Items]
Gross realized gains on sales of Available-for-sale debt securities	¥ 85,525	¥ 42,123	¥ 151,015
Gross realized losses on sales of Available-for-sale debt securities	36,698	¥ 48,606	44,662
Corporate bonds
Investment Securities [Line Items]
Other-than-temporary impairment ("OTTI") losses of debt securities included in Investment securities gains (losses)—net	¥ 47,281		¥ 1,590

Investment Securities (Investme

Investment Securities (Investments by Length and Category in Continuous Loss Position) (Detail) ¥ in Millions	Mar. 31, 2022 JPY (¥) Securities	Mar. 31, 2021 JPY (¥) Securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 27,939,292	¥ 14,238,837
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	177,600	46,545
Available-for-sale debt securities, Fair value, 12 months or more	1,039,235	1,199,049
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	24,433	12,678
Available-for-sale debt securities, Fair value, Total	28,978,527	15,437,886
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 202,033	¥ 59,223
Available-for-sale debt securities, Number of securities | Securities	1,730	1,235
Japanese national government and Japanese government agency bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 22,998,960	¥ 12,098,437
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	126,516	31,055
Available-for-sale debt securities, Fair value, 12 months or more	353,932	429,235
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	5,995	9,823
Available-for-sale debt securities, Fair value, Total	23,352,892	12,527,672
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 132,511	¥ 40,878
Available-for-sale debt securities, Number of securities | Securities	486	286
Japanese prefectural and municipal bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 2,430,603	¥ 870,007
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	14,864	1,584
Available-for-sale debt securities, Fair value, 12 months or more	31,139	276,172
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	123	1,231
Available-for-sale debt securities, Fair value, Total	2,461,742	1,146,179
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 14,987	¥ 2,815
Available-for-sale debt securities, Number of securities | Securities	926	405
Foreign government and official institution bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 1,376,267	¥ 429,204
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	31,470	11,768
Available-for-sale debt securities, Fair value, 12 months or more	167,446	50,478
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	17,570	13
Available-for-sale debt securities, Fair value, Total	1,543,713	479,682
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 49,040	¥ 11,781
Available-for-sale debt securities, Number of securities | Securities	87	71
Corporate bonds
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 427,739	¥ 96,582
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	925	166
Available-for-sale debt securities, Fair value, 12 months or more	94,364	229,518
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	148	235
Available-for-sale debt securities, Fair value, Total	522,103	326,100
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 1,073	¥ 401
Available-for-sale debt securities, Number of securities | Securities	173	120
Residential mortgage-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 178,857	¥ 378,351
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	58	577
Available-for-sale debt securities, Fair value, 12 months or more	391,265	139,214
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	590	474
Available-for-sale debt securities, Fair value, Total	570,122	517,565
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 648	¥ 1,051
Available-for-sale debt securities, Number of securities | Securities	12	218
Commercial mortgage-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months		¥ 36,633
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months		905
Available-for-sale debt securities, Fair value, 12 months or more		2,616
Available-for-sale debt securities, Gross unrealized losses, 12 months or more		7
Available-for-sale debt securities, Fair value, Total		39,249
Available-for-sale debt securities, Gross unrealized losses, Total		¥ 912
Available-for-sale debt securities, Number of securities | Securities		21
Asset-backed securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 115,695	¥ 190,795
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	222	394
Available-for-sale debt securities, Fair value, 12 months or more	0	49,428
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	0	256
Available-for-sale debt securities, Fair value, Total	115,695	240,223
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 222	¥ 650
Available-for-sale debt securities, Number of securities | Securities	12	89
Other debt securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 44,128	¥ 22,812
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	3,526	91
Available-for-sale debt securities, Fair value, 12 months or more	1,089	22,388
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	7	639
Available-for-sale debt securities, Fair value, Total	45,217	45,200
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 3,533	¥ 730
Available-for-sale debt securities, Number of securities | Securities	4	17
Commercial paper
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 367,043	¥ 116,016
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	19	5
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	367,043	116,016
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 19	¥ 5
Available-for-sale debt securities, Number of securities | Securities	30	8

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	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Net gains (losses) recognized during the period	¥ (125,271)	¥ 1,467,763	¥ (639,813)
Net gains (losses) recognized during the period on equity securities sold during the period	(38,042)	47,775	(37,541)
Net unrealized gains (losses) recognized during the reporting period still held at the reporting date	¥ (87,229)	¥ 1,419,988	¥ (602,272)

Investment Securities (Carrying

Investment Securities (Carrying Value of Nonmarketable Equity Securities) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Nonmarketable equity securities | Measurement alternative
Investment Securities [Line Items]
Measurement alternative balance	¥ 310,570	¥ 356,074

Investment Securities (Related

Investment Securities (Related Adjustments for Nonmarketable Equity Securities) (Detail) - Nonmarketable equity securities - Measurement alternative - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Investment Securities [Line Items]
Measurement alternative impairment losses	¥ (4,299)	¥ (5,188)	¥ (3,099)
Measurement alternative downward changes for observable prices	0	0	(953)
Measurement alternative upward changes for observable prices	3,067	21,710	¥ 6,223
Cumulative impairment losses	12,354	10,102
Cumulative downward changes for observable prices	954	953
Cumulative upward changes for observable prices	¥ 54,223	¥ 54,806

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses (Total Outstanding Loans and Past Due Analysis) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Total	¥ 113,471,623	¥ 116,027,745
Loans Held for Sale	514,109	353,095
Past Due 90 Days and Accruing	6,620	20,540
Unearned income, unamortized premiums—net and deferred loan fees—net	(322,230)	(308,882)
Total	113,149,393	115,718,863
1 to 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	210,279	249,200
Greater than 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	207,798	281,701
Total past due
Loans and Leases Receivable Disclosure [Line Items]
Total	418,077	530,901
Financial Asset, Current
Loans and Leases Receivable Disclosure [Line Items]
Total	112,539,437	115,143,749
Residential
Loans and Leases Receivable Disclosure [Line Items]
Total	13,301,505	13,182,815
Loans Held for Sale	0	0
Past Due 90 Days and Accruing	3,360	11,150
Residential | 1 to 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	32,078	39,577
Residential | Greater than 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	13,598	28,375
Residential | Total past due
Loans and Leases Receivable Disclosure [Line Items]
Total	45,676	67,952
Residential | Financial Asset, Current
Loans and Leases Receivable Disclosure [Line Items]
Total	13,255,829	13,114,863
Card
Loans and Leases Receivable Disclosure [Line Items]
Total	464,266	502,241
Loans Held for Sale	0	22,945
Past Due 90 Days and Accruing	0	0
Card | 1 to 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	10,250	2,127
Card | Greater than 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	26,818	26,786
Card | Total past due
Loans and Leases Receivable Disclosure [Line Items]
Total	37,068	28,913
Card | Financial Asset, Current
Loans and Leases Receivable Disclosure [Line Items]
Total	427,198	450,383
MUAH
Loans and Leases Receivable Disclosure [Line Items]
Total	2,812,969	8,583,566
Loans Held for Sale	70,841	87,822
Past Due 90 Days and Accruing	0	4,626
MUAH | 1 to 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	625	42,082
MUAH | Greater than 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	0	29,337
MUAH | Total past due
Loans and Leases Receivable Disclosure [Line Items]
Total	625	71,419
MUAH | Financial Asset, Current
Loans and Leases Receivable Disclosure [Line Items]
Total	2,741,503	8,424,325
Krungsri
Loans and Leases Receivable Disclosure [Line Items]
Total	6,822,765	6,604,645
Loans Held for Sale	0	0
Past Due 90 Days and Accruing	0	0
Krungsri | 1 to 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	115,636	131,573
Krungsri | Greater than 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	126,494	127,533
Krungsri | Total past due
Loans and Leases Receivable Disclosure [Line Items]
Total	242,130	259,106
Krungsri | Financial Asset, Current
Loans and Leases Receivable Disclosure [Line Items]
Total	6,580,635	6,345,539
Other
Loans and Leases Receivable Disclosure [Line Items]
Total	1,045,121	986,688
Loans Held for Sale	0	0
Past Due 90 Days and Accruing	0	0
Other | 1 to 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	21,729	21,776
Other | Greater than 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	21,152	24,201
Other | Total past due
Loans and Leases Receivable Disclosure [Line Items]
Total	42,881	45,977
Other | Financial Asset, Current
Loans and Leases Receivable Disclosure [Line Items]
Total	1,002,240	940,711
Domestic | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total	54,044,718	54,680,843
Loans Held for Sale	69,257	47,632
Past Due 90 Days and Accruing	3,260	4,673
Domestic | Commercial | 1 to 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	12,556	4,763
Domestic | Commercial | Greater than 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	9,138	22,996
Domestic | Commercial | Total past due
Loans and Leases Receivable Disclosure [Line Items]
Total	21,694	27,759
Domestic | Commercial | Financial Asset, Current
Loans and Leases Receivable Disclosure [Line Items]
Total	53,953,767	54,605,452
Foreign
Loans and Leases Receivable Disclosure [Line Items]
Total		45,338,581	¥ 47,333,878
Foreign | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total	34,980,279	31,486,947
Loans Held for Sale	374,011	194,696
Past Due 90 Days and Accruing	0	91
Foreign | Commercial | 1 to 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	17,405	7,302
Foreign | Commercial | Greater than 3 months past due
Loans and Leases Receivable Disclosure [Line Items]
Total	10,598	22,473
Foreign | Commercial | Total past due
Loans and Leases Receivable Disclosure [Line Items]
Total	28,003	29,775
Foreign | Commercial | Financial Asset, Current
Loans and Leases Receivable Disclosure [Line Items]
Total	¥ 34,578,265	¥ 31,262,476

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses (Narrative) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Financing Receivable, Allowance for Credit Losses [Line Items]
Commitments to extend credit to customers with TDRs	¥ 132,456	¥ 130,788
Nonperforming loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Decrease from charge-offs in the allowance for credit losses due to loan disposal activity	¥ 400	16,800	¥ 19,400
Minimum | Close Watch
Financing Receivable, Allowance for Credit Losses [Line Items]
Accruing loans contractually past due, in day	90 days
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Significant sales of loans	¥ 2,011,000	1,684,000	¥ 2,136,000
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 | Minimum | Close Watch
Financing Receivable, Allowance for Credit Losses [Line Items]
Accruing loans contractually past due, in day	90 days
Commercial | Maximum
Financing Receivable, Allowance for Credit Losses [Line Items]
Temporary extensions of maturity dates to nonaccrual loans, in day	90 days
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
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	¥ 518,000	¥ 586,000
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
Krungsri | Minimum | Under-Performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Cumulative period of loans for categorizing internal borrower ratings, commencing from the contractual due date, in day	30 days
Krungsri | Minimum | Non-Performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Cumulative period of loans for categorizing internal borrower ratings, commencing from the contractual due date, 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	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	¥ 1,184,829	¥ 1,213,841
Nonaccrual loans not requiring an allowance for credit losses	201,166	246,007
Recognized Interest Income	19,943	21,247
Loans held for sale placed on nonaccrual status	7,946	8,562
Commercial | Domestic
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	633,768	565,671
Nonaccrual loans not requiring an allowance for credit losses	109,919	111,141
Recognized Interest Income	6,532	4,355
Commercial | Foreign
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	224,566	258,391
Nonaccrual loans not requiring an allowance for credit losses	84,837	96,833
Recognized Interest Income	4,734	5,110
Residential
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	56,175	67,968
Nonaccrual loans not requiring an allowance for credit losses	3,579	4,720
Recognized Interest Income	811	923
Card
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	62,578	60,200
Nonaccrual loans not requiring an allowance for credit losses	0	0
Recognized Interest Income	25	37
MUAH
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	15,349	73,706
Nonaccrual loans not requiring an allowance for credit losses	0	30,242
Recognized Interest Income	77	1,057
Krungsri
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	165,775	161,338
Nonaccrual loans not requiring an allowance for credit losses	2,824	3,042
Recognized Interest Income	4,076	5,562
Other
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	26,618	26,567
Nonaccrual loans not requiring an allowance for credit losses	7	29
Recognized Interest Income	¥ 3,688	¥ 4,203

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses (Troubled Debt Restructurings by Class) (Detail) - JPY (¥)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	¥ 265,569,000,000	¥ 178,416,000,000	¥ 217,911,000,000
Troubled debt restructurings, Post-modification outstanding recorded investment	263,450,000,000	177,246,000,000	216,599,000,000
Troubled debt restructurings that subsequently defaulted, Recorded Investment	38,521,000,000	39,450,000,000	26,521,000,000
Commercial | Loans acquired with deteriorated credit quality
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	0	0	10,786,000,000
Troubled debt restructurings, Post-modification outstanding recorded investment	0	0	10,786,000,000
Commercial | Domestic
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	168,348,000,000	39,282,000,000	61,735,000,000
Troubled debt restructurings, Post-modification outstanding recorded investment	167,342,000,000	39,282,000,000	61,735,000,000
Troubled debt restructurings that subsequently defaulted, Recorded Investment	12,020,000,000	16,179,000,000	8,857,000,000
Commercial | Foreign
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	16,144,000,000	33,839,000,000	39,827,000,000
Troubled debt restructurings, Post-modification outstanding recorded investment	16,144,000,000	33,839,000,000	39,827,000,000
Troubled debt restructurings that subsequently defaulted, Recorded Investment	13,180,000,000	9,861,000,000	2,337,000,000
Residential
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	22,484,000,000	18,121,000,000	5,137,000,000
Troubled debt restructurings, Post-modification outstanding recorded investment	22,484,000,000	18,121,000,000	5,137,000,000
Troubled debt restructurings that subsequently defaulted, Recorded Investment	203,000,000	157,000,000	31,000,000
Card
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	20,937,000,000	20,857,000,000	22,625,000,000
Troubled debt restructurings, Post-modification outstanding recorded investment	19,824,000,000	19,737,000,000	21,561,000,000
Troubled debt restructurings that subsequently defaulted, Recorded Investment	2,746,000,000	2,733,000,000	3,320,000,000
MUAH
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	11,384,000,000	22,801,000,000	33,782,000,000
Troubled debt restructurings, Post-modification outstanding recorded investment	11,384,000,000	22,763,000,000	33,564,000,000
Troubled debt restructurings that subsequently defaulted, Recorded Investment	0	3,437,000,000	4,656,000,000
Krungsri
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	14,869,000,000	18,548,000,000	31,238,000,000
Troubled debt restructurings, Post-modification outstanding recorded investment	14,869,000,000	18,548,000,000	31,209,000,000
Troubled debt restructurings that subsequently defaulted, Recorded Investment	5,657,000,000	6,226,000,000	7,305,000,000
Other
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	11,403,000,000	24,968,000,000	12,781,000,000
Troubled debt restructurings, Post-modification outstanding recorded investment	11,403,000,000	24,956,000,000	12,780,000,000
Troubled debt restructurings that subsequently defaulted, Recorded Investment	¥ 4,715,000,000	¥ 857,000,000	¥ 15,000,000

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses (Credit Quality Indicators of Loans and Year of Origination by Class) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	¥ 113,471,623	¥ 116,027,745
Commercial | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	27,445,726	29,805,641
Financing receivable, year 2	10,850,943	10,256,709
Financing receivable, year 3	7,634,337	9,410,172
Financing receivable, year 4	6,509,048	5,360,221
Financing receivable, year 5	3,924,194	4,736,515
Financing receivable, >5 years	8,827,987	6,945,092
Revolving loans amortized cost basis	23,380,258	19,401,336
Revolving loans converted to term loans amortized cost basis	9,236	9,776
Total	88,581,729	85,925,462
Commercial | Domestic
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	54,044,718	54,680,843
Commercial | Domestic | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	19,038,698	22,402,694
Financing receivable, year 2	7,937,529	6,392,946
Financing receivable, year 3	5,003,439	6,126,746
Financing receivable, year 4	4,499,174	3,840,964
Financing receivable, year 5	2,817,819	3,649,145
Financing receivable, >5 years	6,639,931	5,286,408
Revolving loans amortized cost basis	8,038,871	6,934,308
Revolving loans converted to term loans amortized cost basis	0	0
Total	53,975,461	54,633,211
Commercial | Domestic | Normal | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	18,756,933	21,936,776
Financing receivable, year 2	7,646,272	6,058,126
Financing receivable, year 3	4,669,784	5,915,318
Financing receivable, year 4	4,335,640	3,666,734
Financing receivable, year 5	2,698,956	3,551,332
Financing receivable, >5 years	6,205,070	4,847,597
Revolving loans amortized cost basis	7,686,772	6,604,586
Revolving loans converted to term loans amortized cost basis	0	0
Total	51,999,427	52,580,469
Commercial | Domestic | Close Watch | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	257,276	431,223
Financing receivable, year 2	266,311	319,073
Financing receivable, year 3	167,387	195,630
Financing receivable, year 4	150,834	162,176
Financing receivable, year 5	104,047	74,698
Financing receivable, >5 years	307,367	317,622
Revolving loans amortized cost basis	306,193	306,236
Revolving loans converted to term loans amortized cost basis	0	0
Total	1,559,415	1,806,658
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]
Financing receivable, year 1	24,489	34,695
Financing receivable, year 2	24,946	15,747
Financing receivable, year 3	166,268	15,798
Financing receivable, year 4	12,700	12,054
Financing receivable, year 5	14,816	23,115
Financing receivable, >5 years	127,494	121,189
Revolving loans amortized cost basis	45,906	23,486
Revolving loans converted to term loans amortized cost basis	0	0
Total	416,619	246,084
Commercial | Foreign
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	34,980,279	31,486,947
Commercial | Foreign | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	8,407,028	7,402,947
Financing receivable, year 2	2,913,414	3,863,763
Financing receivable, year 3	2,630,898	3,283,426
Financing receivable, year 4	2,009,874	1,519,257
Financing receivable, year 5	1,106,375	1,087,370
Financing receivable, >5 years	2,188,056	1,658,684
Revolving loans amortized cost basis	15,341,387	12,467,028
Revolving loans converted to term loans amortized cost basis	9,236	9,776
Total	34,606,268	31,292,251
Commercial | Foreign | Normal | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	8,250,729	7,158,793
Financing receivable, year 2	2,814,362	3,704,240
Financing receivable, year 3	2,501,594	3,155,261
Financing receivable, year 4	1,881,532	1,423,064
Financing receivable, year 5	1,031,105	1,032,052
Financing receivable, >5 years	2,031,243	1,534,943
Revolving loans amortized cost basis	15,089,995	12,231,018
Revolving loans converted to term loans amortized cost basis	1,912	9,776
Total	33,602,472	30,249,147
Commercial | Foreign | Close Watch | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	149,502	200,305
Financing receivable, year 2	90,355	118,027
Financing receivable, year 3	73,253	91,867
Financing receivable, year 4	110,170	60,422
Financing receivable, year 5	36,274	51,433
Financing receivable, >5 years	93,622	69,436
Revolving loans amortized cost basis	223,203	197,405
Revolving loans converted to term loans amortized cost basis	7,324	0
Total	783,703	788,895
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]
Financing receivable, year 1	6,797	43,849
Financing receivable, year 2	8,697	41,496
Financing receivable, year 3	56,051	36,298
Financing receivable, year 4	18,172	35,771
Financing receivable, year 5	38,996	3,885
Financing receivable, >5 years	63,191	54,305
Revolving loans amortized cost basis	28,189	38,605
Revolving loans converted to term loans amortized cost basis	0	0
Total	220,093	254,209
Residential
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	13,301,505	13,182,815
Residential | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	782,446	623,328
Financing receivable, year 2	641,706	847,314
Financing receivable, year 3	976,736	822,883
Financing receivable, year 4	866,282	892,166
Financing receivable, year 5	900,959	1,304,110
Financing receivable, >5 years	9,104,691	8,660,022
Revolving loans amortized cost basis	28,685	32,984
Revolving loans converted to term loans amortized cost basis	0	8
Total	13,301,505	13,182,815
Residential | Accrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	782,314	623,035
Financing receivable, year 2	641,499	846,787
Financing receivable, year 3	976,162	822,411
Financing receivable, year 4	865,761	891,407
Financing receivable, year 5	900,120	1,302,427
Financing receivable, >5 years	9,054,326	8,599,621
Revolving loans amortized cost basis	26,460	30,897
Revolving loans converted to term loans amortized cost basis	0	0
Total	13,246,642	13,116,585
Residential | Nonaccrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	132	293
Financing receivable, year 2	207	527
Financing receivable, year 3	574	472
Financing receivable, year 4	521	759
Financing receivable, year 5	839	1,683
Financing receivable, >5 years	50,365	60,401
Revolving loans amortized cost basis	2,225	2,087
Revolving loans converted to term loans amortized cost basis	0	8
Total	54,863	66,230
Card
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	464,266	502,241
Card | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	19	14
Financing receivable, year 2	106	96
Financing receivable, year 3	182	171
Financing receivable, year 4	175	304
Financing receivable, year 5	276	110
Financing receivable, >5 years	437	513
Revolving loans amortized cost basis	400,552	417,804
Revolving loans converted to term loans amortized cost basis	62,519	60,284
Total	464,266	479,296
Card | Accrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	1	1
Financing receivable, year 2	8	10
Financing receivable, year 3	8	13
Financing receivable, year 4	9	19
Financing receivable, year 5	13	7
Financing receivable, >5 years	41	79
Revolving loans amortized cost basis	387,648	404,301
Revolving loans converted to term loans amortized cost basis	13,960	14,666
Total	401,688	419,096
Card | Nonaccrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	18	13
Financing receivable, year 2	98	86
Financing receivable, year 3	174	158
Financing receivable, year 4	166	285
Financing receivable, year 5	263	103
Financing receivable, >5 years	396	434
Revolving loans amortized cost basis	12,904	13,503
Revolving loans converted to term loans amortized cost basis	48,559	45,618
Total	62,578	60,200
MUAH
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	2,812,969	8,583,566
MUAH | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	364,236	1,406,996
Financing receivable, year 2	306,134	1,366,930
Financing receivable, year 3	147,821	915,570
Financing receivable, year 4	62,455	861,742
Financing receivable, year 5	50,264	770,568
Financing receivable, >5 years	122,149	1,291,561
Revolving loans amortized cost basis	1,689,069	1,882,377
Revolving loans converted to term loans amortized cost basis	0	0
Total	2,742,128	8,495,744
MUAH | Accrual | Credit Quality Based on the Number of Delinquencies | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1		472,892
Financing receivable, year 2		608,580
Financing receivable, year 3		324,369
Financing receivable, year 4		552,380
Financing receivable, year 5		516,051
Financing receivable, >5 years		656,087
Revolving loans amortized cost basis		130,514
Revolving loans converted to term loans amortized cost basis		0
Total		3,260,873
MUAH | Nonaccrual | Credit Quality Based on the Number of Delinquencies | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1		0
Financing receivable, year 2		725
Financing receivable, year 3		518
Financing receivable, year 4		1,139
Financing receivable, year 5		1,035
Financing receivable, >5 years		14,801
Revolving loans amortized cost basis		828
Revolving loans converted to term loans amortized cost basis		0
Total		19,046
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]
Financing receivable, year 1	357,334	920,959
Financing receivable, year 2	298,658	707,841
Financing receivable, year 3	126,083	486,354
Financing receivable, year 4	48,653	287,316
Financing receivable, year 5	43,938	236,715
Financing receivable, >5 years	117,778	542,634
Revolving loans amortized cost basis	1,642,946	1,625,799
Revolving loans converted to term loans amortized cost basis	0	0
Total	2,635,390	4,807,618
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]
Financing receivable, year 1	3,106	4,865
Financing receivable, year 2	0	31,361
Financing receivable, year 3	20,013	49,784
Financing receivable, year 4	2,415	14,904
Financing receivable, year 5	5,981	9,522
Financing receivable, >5 years	805	30,015
Revolving loans amortized cost basis	33,471	76,487
Revolving loans converted to term loans amortized cost basis	0	0
Total	65,791	216,938
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]
Financing receivable, year 1	3,796	8,280
Financing receivable, year 2	7,476	18,423
Financing receivable, year 3	1,725	54,545
Financing receivable, year 4	11,387	6,003
Financing receivable, year 5	345	7,245
Financing receivable, >5 years	3,566	48,024
Revolving loans amortized cost basis	12,652	48,749
Revolving loans converted to term loans amortized cost basis	0	0
Total	40,947	191,269
Krungsri
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	6,822,765	6,604,645
Krungsri | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	1,350,265	1,316,031
Financing receivable, year 2	964,094	1,197,815
Financing receivable, year 3	901,955	958,241
Financing receivable, year 4	680,090	506,919
Financing receivable, year 5	329,847	285,427
Financing receivable, >5 years	481,981	402,752
Revolving loans amortized cost basis	2,099,727	1,922,946
Revolving loans converted to term loans amortized cost basis	14,806	14,514
Total	6,822,765	6,604,645
Krungsri | Performing | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	1,297,054	1,251,246
Financing receivable, year 2	891,374	1,086,710
Financing receivable, year 3	788,828	855,915
Financing receivable, year 4	573,840	434,818
Financing receivable, year 5	270,783	241,811
Financing receivable, >5 years	363,905	314,114
Revolving loans amortized cost basis	1,961,481	1,754,840
Revolving loans converted to term loans amortized cost basis	0	0
Total	6,147,265	5,939,454
Krungsri | Under-Performing | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	42,326	52,821
Financing receivable, year 2	58,084	85,408
Financing receivable, year 3	90,519	74,848
Financing receivable, year 4	80,841	57,314
Financing receivable, year 5	45,982	31,886
Financing receivable, >5 years	78,690	57,129
Revolving loans amortized cost basis	113,283	144,447
Revolving loans converted to term loans amortized cost basis	0	0
Total	509,725	503,853
Krungsri | Non-Performing | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	10,885	11,964
Financing receivable, year 2	14,636	25,697
Financing receivable, year 3	22,608	27,478
Financing receivable, year 4	25,409	14,787
Financing receivable, year 5	13,082	11,730
Financing receivable, >5 years	39,386	31,509
Revolving loans amortized cost basis	24,963	23,659
Revolving loans converted to term loans amortized cost basis	14,806	14,514
Total	165,775	161,338
Other
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Total	1,045,121	986,688
Other | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	400,482	338,342
Financing receivable, year 2	143,336	164,650
Financing receivable, year 3	85,496	84,115
Financing receivable, year 4	40,445	37,394
Financing receivable, year 5	35,346	11,030
Financing receivable, >5 years	0	8,538
Revolving loans amortized cost basis	340,016	342,619
Revolving loans converted to term loans amortized cost basis	0	0
Total	1,045,121	986,688
Other | Accrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	398,744	335,830
Financing receivable, year 2	136,317	159,363
Financing receivable, year 3	83,278	79,608
Financing receivable, year 4	38,609	35,366
Financing receivable, year 5	32,934	10,556
Financing receivable, >5 years	0	8,201
Revolving loans amortized cost basis	328,621	331,197
Revolving loans converted to term loans amortized cost basis	0	0
Total	1,018,503	960,121
Other | Nonaccrual | Excluding loans held for sale and covered loans
Financing Receivables Credit Quality Indicator By Year Of Origination [Line Items]
Financing receivable, year 1	1,738	2,512
Financing receivable, year 2	7,019	5,287
Financing receivable, year 3	2,218	4,507
Financing receivable, year 4	1,836	2,028
Financing receivable, year 5	2,412	474
Financing receivable, >5 years	0	337
Revolving loans amortized cost basis	11,395	11,422
Revolving loans converted to term loans amortized cost basis	0	0
Total	¥ 26,618	¥ 26,567

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses (Changes in Allowance for Credit Losses by Portfolio Segment) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022		Mar. 31, 2021		Mar. 31, 2020
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	¥ 1,348,391	[1]	¥ 809,540		¥ 658,184
Provision for (reversal of) credit losses	277,995		484,210		321,713
Charge-offs	238,012		290,506		243,135
Recoveries collected	58,715		45,082		63,858
Net charge-offs	179,297		245,424		179,277
Other	23,612		(23,639)		8,920
Balance at end of fiscal year	1,470,701	[1]	1,348,391	[1]	809,540
Cumulative effect adjustment | Effect of adopting new guidance on measurement of credit losses on financial instruments
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	323,704
Balance at end of fiscal year			323,704
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	734,577		482,275		389,615
Provision for (reversal of) credit losses	236,659		235,584		153,782
Charge-offs	57,848		77,904		85,326
Recoveries collected	11,898		9,262		26,427
Net charge-offs	45,950		68,642		58,899
Other	8,800		1,532		(2,223)
Balance at end of fiscal year	934,086		734,577		482,275
Commercial | Cumulative effect adjustment | Effect of adopting new guidance on measurement of credit losses on financial instruments
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	83,828
Balance at end of fiscal year			83,828
Residential
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	82,893		34,746		38,626
Provision for (reversal of) credit losses	(10,899)		1,385		(1,028)
Charge-offs	2,121		2,745		3,227
Recoveries collected	14		13		375
Net charge-offs	2,107		2,732		2,852
Other	0		0		0
Balance at end of fiscal year	69,887		82,893		34,746
Residential | Cumulative effect adjustment | Effect of adopting new guidance on measurement of credit losses on financial instruments
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	49,494
Balance at end of fiscal year			49,494
Card
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	44,217		35,180		32,550
Provision for (reversal of) credit losses	15,473		17,876		26,542
Charge-offs	20,153		24,564		25,149
Recoveries collected	1,231		1,463		1,237
Net charge-offs	18,922		23,101		23,912
Other	0		0		0
Balance at end of fiscal year	40,768		44,217		35,180
Card | Cumulative effect adjustment | Effect of adopting new guidance on measurement of credit losses on financial instruments
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	14,262
Balance at end of fiscal year			14,262
MUAH
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	131,755		58,995		52,581
Provision for (reversal of) credit losses	(101,112)		90,064		30,825
Charge-offs	19,208		40,376		27,934
Recoveries collected	9,532		4,362		4,173
Net charge-offs	9,676		36,014		23,761
Other	9,398		(6,327)		(650)
Balance at end of fiscal year	30,365		131,755		58,995
MUAH | Cumulative effect adjustment | Effect of adopting new guidance on measurement of credit losses on financial instruments
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	25,037
Balance at end of fiscal year			25,037
Krungsri
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	293,396		169,626		144,812
Provision for (reversal of) credit losses	90,514		90,167		70,023
Charge-offs	83,474		93,192		77,907
Recoveries collected	22,890		23,415		23,170
Net charge-offs	60,584		69,777		54,737
Other	(940)		(14,953)		9,528
Balance at end of fiscal year	322,386		293,396		169,626
Krungsri | Cumulative effect adjustment | Effect of adopting new guidance on measurement of credit losses on financial instruments
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	118,333
Balance at end of fiscal year			118,333
Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	61,553		28,718		0
Provision for (reversal of) credit losses	47,360		49,134		41,569
Charge-offs	55,208		51,725		23,592
Recoveries collected	13,150		6,567		8,476
Net charge-offs	42,058		45,158		15,116
Other	6,354		(3,891)		2,265
Balance at end of fiscal year	73,209		61,553		¥ 28,718
Other | Cumulative effect adjustment | Effect of adopting new guidance on measurement of credit losses on financial instruments
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of fiscal year	¥ 32,750
Balance at end of fiscal year			¥ 32,750
[1]New guidance on measurement of credit losses on financial instruments requires the allowance for credit losses to be measured using the current expected credit losses model from April 1, 2020. For additional information, refer to Note 1.

Premises and Equipment (Compone

Premises and Equipment (Components of Premises and Equipment) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Property, Plant and Equipment [Line Items]
Total	¥ 1,923,706	¥ 2,058,851
Less accumulated depreciation	1,107,877	1,183,859
Premises and equipment-net	815,829	874,992
Land
Property, Plant and Equipment [Line Items]
Total	372,710	379,560
Buildings
Property, Plant and Equipment [Line Items]
Total	766,945	765,341
Equipment and furniture
Property, Plant and Equipment [Line Items]
Total	497,478	564,273
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total	255,679	303,164
Construction in progress
Property, Plant and Equipment [Line Items]
Total	¥ 30,894	¥ 46,513

Premises and Equipment (Narrati

Premises and Equipment (Narrative) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Property, Plant and Equipment [Line Items]
Impairment losses for long-lived assets	¥ 6,574	¥ 11,424	¥ 16,575
Impairment of assets held for sale	134,141	0	0
Real estate
Property, Plant and Equipment [Line Items]
Impairment of assets held for sale	¥ 58	¥ 773	¥ 194

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Movement in Carrying Amount of Goodwill by Business Segment) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Apr. 01, 2017
Goodwill [Line Items]
Goodwill	¥ 1,118,889	¥ 1,094,344	¥ 1,093,554
Accumulated impairment losses	(723,492)	(723,492)	(575,928)
Goodwill (Notes 2 and 6)	303,611	370,852	517,626
Goodwill acquired during the fiscal year		5,269
Impairment loss	0	(147,564)	(383,810)
Foreign currency translation adjustments and other	24,545	(4,479)
Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank	(91,786)
Goodwill, fully impaired				¥ 1,900,019
Operating Segments | Customer business | Global Corporate & Investment Banking Business Group
Goodwill [Line Items]
Goodwill	144,793	140,099	138,538
Accumulated impairment losses	(63,393)	(63,393)	32,868
Goodwill (Notes 2 and 6)	78,985	76,706	105,670
Goodwill acquired during the fiscal year		1,105
Impairment loss		(30,525)
Foreign currency translation adjustments and other	4,694	456
Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank	(2,415)
Operating Segments | Customer business | Global Commercial Banking Business Group
Goodwill [Line Items]
Goodwill	736,002	728,644	738,645
Accumulated impairment losses	(645,731)	(645,731)	(528,692)
Goodwill (Notes 2 and 6)	900	82,913	209,953
Goodwill acquired during the fiscal year		0
Impairment loss		(117,039)
Foreign currency translation adjustments and other	7,358	(10,001)
Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank	(89,371)
Operating Segments | Customer business | Asset Management & Investor Services Business Group
Goodwill [Line Items]
Goodwill	235,794	223,301	214,071
Accumulated impairment losses	(14,368)	(14,368)	(14,368)
Goodwill (Notes 2 and 6)	221,426	208,933	199,703
Goodwill acquired during the fiscal year		4,164
Impairment loss		0
Foreign currency translation adjustments and other	12,493	5,066
Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank	0
Operating Segments | Global Markets Business Group
Goodwill [Line Items]
Goodwill	2,300	2,300	2,300
Accumulated impairment losses	0	0	0
Goodwill (Notes 2 and 6)	2,300	2,300	¥ 2,300
Goodwill acquired during the fiscal year		0
Impairment loss		0
Foreign currency translation adjustments and other	0	¥ 0
Less: Goodwill, net of accumulated impairment losses in transferred business of MUFG Union Bank	¥ 0

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets (Narrative) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Goodwill and Other Intangible Assets [Line Items]
Impairment losses on goodwill	¥ 0	¥ 147,564	¥ 383,810
Intangible assets subject to amortization acquired	262,826	255,336
Intangible assets not subject to amortization acquired	3,498	1,960
Impairment losses for intangible assets, whose carrying amounts exceeded their fair value	33,301	21,680	3,732
Danamon Portfolio Segment | Customer business
Goodwill and Other Intangible Assets [Line Items]
Impairment losses on goodwill			241,356
Software
Goodwill and Other Intangible Assets [Line Items]
Intangible assets subject to amortization acquired	¥ 262,645	¥ 251,452
Weighted average amortization periods of intangible assets subject to amortization, years		5 years
Customer relationships
Goodwill and Other Intangible Assets [Line Items]
Intangible assets subject to amortization acquired		¥ 3,765
Weighted average amortization periods of intangible assets subject to amortization, years	6 years	21 years
Operating Segments | Global Commercial Banking Business Group and Global Corporate & Investment Banking Business Group | Krungsri | Customer business
Goodwill and Other Intangible Assets [Line Items]
Impairment losses on goodwill			62,157
Operating Segments | Global Commercial Banking Business Group and Global Corporate & Investment Banking Business Group | MUAH | Customer business
Goodwill and Other Intangible Assets [Line Items]
Impairment losses on goodwill		¥ 147,564	¥ 80,297

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets (Carrying Amount of Other Intangible Assets by Major Class) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Intangible assets subject to amortization:
Gross carrying amount	¥ 3,904,412	¥ 3,855,102
Accumulated amortization	2,763,862	2,690,208
Net carrying amount	1,140,550	1,164,894
Intangible assets not subject to amortization:
Other	8,051	20,100
Total	1,148,601	1,184,994
Mortgage servicing rights
Intangible assets not subject to amortization:
Other	0	11,355
Software
Intangible assets subject to amortization:
Gross carrying amount	3,169,332	3,025,769
Accumulated amortization	2,380,861	2,249,340
Net carrying amount	788,471	776,429
Customer relationships
Intangible assets subject to amortization:
Gross carrying amount	528,969	555,796
Accumulated amortization	282,324	290,641
Net carrying amount	246,645	265,155
Core deposit intangibles
Intangible assets subject to amortization:
Gross carrying amount	114,059	164,979
Accumulated amortization	58,972	102,958
Net carrying amount	55,087	62,021
Trade names
Intangible assets subject to amortization:
Gross carrying amount	76,858	92,422
Accumulated amortization	36,846	41,629
Net carrying amount	40,012	50,793
Other
Intangible assets subject to amortization:
Gross carrying amount	15,194	16,136
Accumulated amortization	4,859	5,640
Net carrying amount	¥ 10,335	¥ 10,496

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets (Estimated Aggregate Amortization Expense for Intangible Assets for Next Five Fiscal Years) (Detail) ¥ in Millions	Mar. 31, 2022 JPY (¥)
Estimated aggregate amortization expense for intangible assets for the next five fiscal years:
2023	¥ 270,745
2024	232,942
2025	190,321
2026	142,645
2027	¥ 99,395

Lease Transactions (Narrative)

Lease Transactions (Narrative) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
Right-of-use assets of finance leases	¥ 12,980	¥ 15,218
Lease liabilities of finance leases	16,104	20,137
Right-of-use assets of operating leases	261,803	338,547
Amount on balance sheet	384,183	476,104
Operating Lease, Impairment Loss	¥ 20,830	¥ 56,424
Right-of-use assets of finance leases, in consolidated balance sheets line item	Premises and equipment—net (Notes 5 and 7)	Premises and equipment—net (Notes 5 and 7)
Lease liabilities of finance leases, in consolidated balance sheets line item	Long-term debt (including ¥402,823 and ¥483,051 measured at fair value under the fair value option in 2021 and 2022) (Notes 7, 9, 12 and 31)	Long-term debt (including ¥402,823 and ¥483,051 measured at fair value under the fair value option in 2021 and 2022) (Notes 7, 9, 12 and 31)
Right-of-use assets of operating leases, in consolidated balance sheets line item	Other Assets	Other Assets
Lease liabilities of operating leases, in consolidated balance sheets line item	Other Liabilities	Other Liabilities

Lease Transactions (Profit or L

Lease Transactions (Profit or Loss of Lease Transactions as a Lessee) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Finance lease cost:
Amortization of right-of-use assets	¥ 4,816	¥ 4,971	¥ 5,455
Interest on lease liabilities	198	240	460
Operating lease cost	¥ 81,206	¥ 91,276	¥ 99,939

Lease Transactions (Information

Lease Transactions (Information of Lease Transactions as a Lessee) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases	¥ 262	¥ 331
Operating cash flows from operating leases	107,047	102,982
Financing cash flows from finance leases	7,426	7,709
Right-of-use assets obtained in exchange for new finance lease liabilities	4,055	3,487	¥ 12,754
Right-of-use assets obtained in exchange for new operating lease liabilities	¥ 48,095	¥ 50,564	¥ 46,482
Weighted-average remaining lease term:
Finance leases	3 years 7 months 6 days	4 years 1 month 6 days
Operating leases	8 years	8 years 3 months 18 days
Weighted-average discount rate:
Finance leases	0.77%	0.87%
Operating leases	0.76%	0.97%

Lease Transactions (Maturities

Lease Transactions (Maturities of Lease Liabilities) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Undiscounted total lease payments: Finance leases, maturities in
2023	¥ 6,250
2024	4,583
2024	2,395
2026	1,532
2027	839
2028 and thereafter	916
Total undiscounted cash flows	16,515
Difference between undiscounted and discounted cash flows	(411)
Lease liabilities of finance leases	16,104	¥ 20,137
Undiscounted total lease payments: Operating leases, maturities in
2023	89,016
2024	70,274
2025	51,582
2026	40,012
2027	28,138
2028 and thereafter	124,388
Total undiscounted cash flows	403,410
Difference between undiscounted and discounted cash flows	(19,227)
Amount on balance sheet	¥ 384,183	¥ 476,104

Lease Transactions (Profit or_2

Lease Transactions (Profit or Loss of Lease Transactions as a Lessor) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Sales type and direct financing leases:
Finance income on net investment	¥ 116,430	¥ 122,810	¥ 119,010
Operating leases:
Lease income	4,202	3,663	7,856
Total	¥ 120,632	¥ 126,473	¥ 126,866

Lease Transactions (Component o

Lease Transactions (Component of Sales Type and Direct Financing Lease Transactions) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
Lease receivables (undiscounted)	¥ 1,855,125	¥ 1,913,852
Adjustments:
Discounted unguaranteed residual value	12,439	15,435
Initial direct cost on sales type and direct financing leases	27,695	27,869
Deferred selling profit	(306,316)	(313,784)
Net investment in sales type and direct financing leases	¥ 1,588,943	¥ 1,643,372

Lease Transactions (Maturity of

Lease Transactions (Maturity of the Lease Payment Receivables of Sales Type and Direct Financing Lease Transactions) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
2023	¥ 452,739
2024	428,280
2025	348,436
2026	264,847
2027	170,471
2028 and thereafter	190,352
Total undiscounted cash flows	1,855,125	¥ 1,913,852
Difference between undiscounted cash flows and the lease receivables recognized on balance sheet	(266,182)
Amount on balance sheet	¥ 1,588,943

Income Taxes (Income before Inc

Income Taxes (Income before Income Tax Expense by Jurisdiction) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Income Taxes [Line Items]
Total before tax	¥ (58,727)	¥ 1,608,342	¥ 433,220
Domestic income (loss)
Income Taxes [Line Items]
Total before tax	(886,921)	575,101	89,440
Domestic income (loss)
Income Taxes [Line Items]
Total before tax	¥ 828,194	¥ 1,033,241	¥ 343,780

Income Taxes (Detail of Current

Income Taxes (Detail of Current and Deferred Income Tax Expense (Benefit)) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Current:
Domestic	¥ 243,993	¥ 95,183	¥ 28,128
Foreign	112,164	83,492	147,344
Total	356,157	178,675	175,472
Deferred:
Domestic	(308,214)	310,490	(18,949)
Foreign	(62,454)	(44,217)	(42,018)
Total	(370,668)	266,273	(60,967)
Income tax expense (benefit)	(14,511)	444,948	114,505
Income tax expense (benefit) reported in Accumulated OCI relating to:
Investment securities	(87,628)	1,146	(29,747)
Debt valuation adjustments	10,296	(36,792)	23,908
Derivatives qualifying for cash flow hedges	(4,968)	12,244	4,012
Defined benefit plans	19,039	139,883	(57,685)
Foreign currency translation adjustments	96,742	(3,368)	(20,693)
Other Comprehensive Income (Loss), Tax (expense) or benefit	33,481	113,113	(80,205)
Total	¥ 18,970	¥ 558,061	¥ 34,300

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Income Taxes [Line Items]
Approximate effective statutory rate of corporate income tax	30.60%	30.60%	30.60%
Undistributed earnings of foreign subsidiaries	¥ 108,311	¥ 105,934
Operating loss carryforwards	212,597
Tax credit carryforwards	¥ 54,062
Requirements of Japanese Tax Law for Domestic Company to Exclude from Taxable Income Dividend Received from Foreign Company
Income Taxes [Line Items]
Percentage of dividend that can be excluded from the taxable income	95%
Percentage of taxable dividends over the amount received from certain foreign subsidiaries	5%
Requirements of Japanese Tax Law for Domestic Company to Exclude from Taxable Income Dividend Received from Foreign Company | Minimum
Income Taxes [Line Items]
Percentage of outstanding shares held in a foreign company who declared a dividend	25%
Continuous holding period on the date the dividend is declared by a foreign company	6 months

Income Taxes (Reconciliation of

Income Taxes (Reconciliation of Effective Income Tax Rates) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Reconciliation of effective income tax rate:
Combined normal effective statutory tax rate	30.60%	30.60%	30.60%
Nondeductible expenses	(12.00%)	0.30%	1.20%
Impairment of goodwill	0%	2.40%	26.10%
Foreign tax credit and payments	28.70%	(0.90%)	(9.20%)
Lower tax rates applicable to income of subsidiaries	30.80%	(1.00%)	(3.20%)
Change in valuation allowance	(90.10%)	(0.90%)	7.90%
Realization of previously unrecognized tax effects of subsidiaries	0%	0%	(19.80%)
Nontaxable dividends received	85.10%	(1.90%)	(15.60%)
Undistributed earnings of subsidiaries	(25.60%)	0%	3.60%
Tax and interest expense for uncertainty in income taxes	(10.80%)	(0.10%)	0%
Noncontrolling interest income (loss)	(0.70%)	0.10%	(0.10%)
Effect of changes in tax laws	(2.40%)	(0.10%)	0%
Expiration of loss carryforward	(7.00%)	0.10%	1.90%
Other—net	(1.90%)	(0.90%)	3%
Effective income tax rate	24.70%	27.70%	26.40%
Realization of tax benefits that were not previously recognized as deferred tax assets			¥ 85,588
Realization of tax benefits that were not previously recognized as deferred tax assets, percentage			19.80%

Income Taxes (Components of Net

Income Taxes (Components of Net Deferred Tax Assets) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Deferred tax assets:
Allowance for credit losses	¥ 462,303	¥ 462,369
Operating loss carryforwards	99,566	97,844
Loans	37	790
Accrued liabilities and other	309,017	300,942
Premises and equipment	124,419	117,322
Derivative financial instruments	154,237	69,039
Obligations under operating leases	106,864	132,443
Valuation allowance	(184,932)	(137,503)
Total deferred tax assets	1,071,511	1,043,246
Deferred tax liabilities:
Investment securities (including trading account assets at fair value under the fair value option)	605,443	1,017,131
Intangible assets	69,276	70,575
Lease transactions	47,432	48,519
Defined benefit plans	102,998	81,282
Investments in subsidiaries and affiliates	506,829	338,713
Right-of-use assets of operating leases	77,274	100,260
Other	113,335	92,306
Total deferred tax liabilities	1,522,587	1,748,786
Net deferred tax assets (liabilities)	¥ (451,076)	¥ (705,540)

Income Taxes (Operating Loss an

Income Taxes (Operating Loss and Tax Credit Carryforwards) (Detail) ¥ in Millions	Mar. 31, 2022 JPY (¥)
Operating Loss and Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	¥ 212,597
Tax credit carryforwards	54,062
2023
Operating Loss and Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	4,881
Tax credit carryforwards	458
2024
Operating Loss and Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	5,145
Tax credit carryforwards	328
2025
Operating Loss and Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	84,109
Tax credit carryforwards	188
2026
Operating Loss and Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	53,634
Tax credit carryforwards	94
2027
Operating Loss and Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	543
Tax credit carryforwards	151
2028
Operating Loss and Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	0
Tax credit carryforwards	55
2029 and thereafter
Operating Loss and Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	24,022
Tax credit carryforwards	45,367
No definite expiration date
Operating Loss and Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	40,263
Tax credit carryforwards	¥ 7,421

Income Taxes (Roll-forward of U

Income Taxes (Roll-forward of Unrecognized Tax Benefits) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Roll-forward of unrecognized tax benefits:
Balance at beginning of fiscal year	¥ 13,829	¥ 19,249	¥ 19,160
Gross amount of increases for current year’s tax positions	28	202	399
Gross amount of decreases for current year’s tax positions	0	(1,919)	0
Gross amount of increases for prior years’ tax positions	6,320	489	212
Gross amount of decreases for prior years’ tax positions	(183)	(2,329)	0
Net amount of changes relating to settlements with tax authorities	0	0	(81)
Decreases due to lapse of applicable statutes of limitations	(8)	(116)	(297)
Foreign exchange translation and other	1,808	(1,747)	(144)
Balance at end of fiscal year	¥ 21,794	¥ 13,829	¥ 19,249

Income Taxes (Roll-forward of I

Income Taxes (Roll-forward of Interest and Penalties Recognized) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Balance at beginning of fiscal year	¥ 2,417	¥ 2,612	¥ 3,056
Total interest and penalties in the consolidated statements of operations	(156)	398	398
Total cash settlements, foreign exchange translation and other	275	203	(46)
Balance at end of fiscal year	¥ 2,848	¥ 2,417	¥ 2,612

Pledged Assets and Collateral_2

Pledged Assets and Collateral (Narrative) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Financial Instruments Pledged as Collateral [Abstract]
Investment securities pledged for acting as a collection agent of public funds	¥ 21,227,472
Reserve funds included in Cash and due from banks and Interest-earning deposits in other banks	2,991,833	¥ 2,881,778
Pledged assets that may not be sold or repledged by secured parties	46,858,000
Fair value of securities accepted as collateral that is permitted to be sold or repledged	31,167,000	30,983,000
Fair value of securities accepted as collateral that was sold or repledged	23,699,000	23,478,000
Cash collateral pledged for derivative transactions included in Other assets	2,893,178	2,005,136
Cash collateral received for derivative transactions included in Other liabilities	¥ 1,017,580	¥ 909,641

Pledged Assets and Collateral_3

Pledged Assets and Collateral (Assets Mortgaged, Pledged, or Otherwise Subject to Lien) (Detail) ¥ in Millions	Mar. 31, 2022 JPY (¥)
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 45,582,166
Trading account securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	11,951,845
Investment securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	21,594,409
Loans
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	11,718,468
Other
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 317,444

Pledged Assets and Collateral_4

Pledged Assets and Collateral (Pledged Assets Classified by Type of Liabilities) (Detail) ¥ in Millions	Mar. 31, 2022 JPY (¥)
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 45,582,166
Deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	310,450
Payables under repurchase agreements and securities lending transactions
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	15,383,440
Other short-term borrowings and long-term debt
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	29,857,428
Other
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 30,848

Deposits (Narrative) (Detail)

Deposits (Narrative) (Detail) ¥ in Millions	Mar. 31, 2022 JPY (¥)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 JPY (¥)
Deposits [Line Items]
Time deposits, including certificates of deposits ("CDs"), issued in amount of JPY10 million or more, Domestic deposits	¥ 54,819,050		¥ 54,110,025
Minimum
Deposits [Line Items]
Issue amount of domestic time deposits in Japanese Yen	¥ 10
Issue amount of foreign time deposits in U.S. dollars | $		$ 100,000

Deposits (Time Deposits by Matu

Deposits (Time Deposits by Maturity) (Detail) ¥ in Millions	Mar. 31, 2022 JPY (¥)
Domestic
Maturities of time deposits:
Due in one year or less	¥ 31,917,457
Due after one year through two years	4,230,918
Due after two years through three years	2,456,467
Due after three years through four years	604,082
Due after four years through five years	503,677
Due after five years	750,898
Total	40,463,499
Foreign
Maturities of time deposits:
Due in one year or less	24,814,801
Due after one year through two years	210,799
Due after two years through three years	125,802
Due after three years through four years	89,178
Due after four years through five years	41,565
Due after five years	60,812
Total	¥ 25,342,957

Call Money and Funds Purchase_2

Call Money and Funds Purchased (Summary of Funds Transactions) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Call Money and Funds Purchased Transactions [Line Items]
Amount	¥ 2,416,313	¥ 2,353,830
Weighted average interest rate	0.06%	0.04%
Minimum
Call Money and Funds Purchased Transactions [Line Items]
Principal range of maturities	1 day	1 day
Maximum
Call Money and Funds Purchased Transactions [Line Items]
Principal range of maturities	30 days	30 days

Due to Trust Account, Short-t_3

Due to Trust Account, Short-term Borrowings and Long-term Debt (Summary of Due to Trust Account Transactions) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Debt Disclosure [Abstract]
Amount outstanding at end of fiscal year	¥ 6,307,463	¥ 3,891,831
Weighted average interest rate on outstanding balance at end of fiscal year	0%	0%

Due to Trust Account, Short-t_4

Due to Trust Account, Short-term Borrowings and Long-term Debt (Narrative) (Detail) € in Millions, ¥ in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2022 JPY (¥)	Mar. 31, 2022 USD ($)	Mar. 31, 2022 EUR (€)	Mar. 31, 2021 JPY (¥)
Debt Instrument [Line Items]
Unused lines of credit for financing	¥ 4,741,464			¥ 4,408,245
Aggregated principal amount of long term debt issued	¥ 100,000
Minimum TLAC ratio, required by March 31, 2022, over risk weighted assets	18%
Minimum TLAC ratio, required by March 31, 2022, over leverage ratio denominator	6.75%
Basel III
Debt Instrument [Line Items]
Floor of Common Equity Tier 1 ratio, which leads the Group's discretion over unsecured perpetual subordinated Additional Tier 1 notes	5.125%
Unsecured Perpetual Subordinated Additional Tier 1 Notes | Basel III
Debt Instrument [Line Items]
Aggregated principal amount of long term debt issued	¥ 40,000
Bonds for TLAC | Euro
Debt Instrument [Line Items]
Aggregated principal amount of long term debt issued	68,350		€ 500
Bonds for TLAC | Dollars
Debt Instrument [Line Items]
Aggregated principal amount of long term debt issued	¥ 1,383,007	$ 11,300

Due to Trust Account, Short-t_5

Due to Trust Account, Short-term Borrowings and Long-term Debt (Components of Other Short-term Borrowings) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Short-term Debt [Line Items]
Total	¥ 16,543,222	¥ 14,187,760
Less unamortized discount	85	37
Other short-term borrowings—net	¥ 16,543,137	¥ 14,187,723
Weighted average interest rate on outstanding balance at end of fiscal year	0.09%	0.06%
Domestic offices:
Short-term Debt [Line Items]
Total	¥ 12,602,225	¥ 10,712,939
Domestic offices: | Commercial paper
Short-term Debt [Line Items]
Total	1,491,509	1,207,610
Domestic offices: | Borrowings from the Bank of Japan
Short-term Debt [Line Items]
Total	10,231,483	9,238,209
Domestic offices: | Borrowings from other financial institutions
Short-term Debt [Line Items]
Total	68,384	141,060
Domestic offices: | Other
Short-term Debt [Line Items]
Total	810,849	126,060
Foreign offices:
Short-term Debt [Line Items]
Total	3,940,997	3,474,821
Other short-term borrowings—net		3,940,997	¥ 3,474,821
Foreign offices: | Commercial paper
Short-term Debt [Line Items]
Total	3,776,737	3,281,866
Foreign offices: | Borrowings from other financial institutions
Short-term Debt [Line Items]
Total	82,914	113,874
Foreign offices: | Short-term debentures
Short-term Debt [Line Items]
Total	22,059	7,775
Foreign offices: | Other
Short-term Debt [Line Items]
Total	¥ 59,287	¥ 71,306

Due to Trust Account, Short-t_6

Due to Trust Account, Short-term Borrowings and Long-term Debt (Components of Long-term Debt) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Debt Instrument [Line Items]
Obligations under finance leases	¥ 16,104	¥ 20,137
Total	34,710,293	35,171,041
Debt issuance cost	(13,694)	(13,390)
Total, after debt issuance costs	34,696,599	35,157,651
MUFG:
Debt Instrument [Line Items]
Obligations under finance leases	3,326	4,989
Total	10,083,549	9,253,642
MUFG: | Unsubordinated Debt
Debt Instrument [Line Items]
Long-term debt	6,712,325	5,490,157
MUFG: | Unsubordinated Debt | Fixed Rate Bonds I
Debt Instrument [Line Items]
Long-term debt	¥ 5,501,311	4,224,401
MUFG: | Unsubordinated Debt | Fixed Rate Bonds I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.85%
MUFG: | Unsubordinated Debt | Fixed Rate Bonds I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	4.29%
MUFG: | Unsubordinated Debt | Fixed Rate Bonds II
Debt Instrument [Line Items]
Long-term debt	¥ 508,524	482,856
MUFG: | Unsubordinated Debt | Fixed Rate Bonds II | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.34%
MUFG: | Unsubordinated Debt | Fixed Rate Bonds II | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	1.75%
MUFG: | Unsubordinated Debt | Fixed Rate Bonds III
Debt Instrument [Line Items]
Long-term debt	¥ 37,424	34,262
MUFG: | Unsubordinated Debt | Fixed Rate Bonds III | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	2.08%
MUFG: | Unsubordinated Debt | Fixed Rate Bonds III | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	4.05%
MUFG: | Unsubordinated Debt | Adjustable Rate Bonds I
Debt Instrument [Line Items]
Long-term debt	¥ 95,900	0
MUFG: | Unsubordinated Debt | Adjustable Rate Bonds I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.14%
MUFG: | Unsubordinated Debt | Adjustable Rate Bonds I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.42%
MUFG: | Unsubordinated Debt | Adjustable Rate Bonds II
Debt Instrument [Line Items]
Long-term debt	¥ 68,350	0
Interest rate, stated percentage	0.34%
MUFG: | Unsubordinated Debt | Floating Rate Bonds I
Debt Instrument [Line Items]
Long-term debt	¥ 416,171	669,464
MUFG: | Unsubordinated Debt | Floating Rate Bonds I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	1.05%
MUFG: | Unsubordinated Debt | Floating Rate Bonds I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	1.24%
MUFG: | Unsubordinated Debt | Floating Rate Bonds II
Debt Instrument [Line Items]
Long-term debt	¥ 47,845	45,430
Interest rate, stated percentage	0.02%
MUFG: | Unsubordinated Debt | Floating Rate Bonds III
Debt Instrument [Line Items]
Long-term debt	¥ 36,800	33,744
Interest rate, stated percentage	1.31%
MUFG: | Subordinated Debt
Debt Instrument [Line Items]
Long-term debt	¥ 3,367,898	3,758,496
MUFG: | Subordinated Debt | Fixed Rate Bonds I
Debt Instrument [Line Items]
Long-term debt	¥ 771,014	776,886
MUFG: | Subordinated Debt | Fixed Rate Bonds I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.37%
MUFG: | Subordinated Debt | Fixed Rate Bonds I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	1.39%
MUFG: | Subordinated Debt | Adjustable Rate Bonds I
Debt Instrument [Line Items]
Long-term debt	¥ 905,925	1,072,209
MUFG: | Subordinated Debt | Adjustable Rate Bonds I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.29%
MUFG: | Subordinated Debt | Adjustable Rate Bonds I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.58%
MUFG: | Subordinated Debt | Adjustable Rate Bonds II
Debt Instrument [Line Items]
Long-term debt	¥ 1,486,734	1,704,816
MUFG: | Subordinated Debt | Adjustable Rate Bonds II | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.82%
MUFG: | Subordinated Debt | Adjustable Rate Bonds II | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	2.50%
MUFG: | Subordinated Debt | Adjustable Rate Borrowings I
Debt Instrument [Line Items]
Long-term debt	¥ 31,500	31,500
MUFG: | Subordinated Debt | Adjustable Rate Borrowings I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.30%
MUFG: | Subordinated Debt | Adjustable Rate Borrowings I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.46%
MUFG: | Subordinated Debt | Adjustable Rate Borrowings II
Debt Instrument [Line Items]
Long-term debt	¥ 86,725	87,085
MUFG: | Subordinated Debt | Adjustable Rate Borrowings II | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.85%
MUFG: | Subordinated Debt | Adjustable Rate Borrowings II | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	1.17%
MUFG: | Subordinated Debt | Floating Rate Borrowings I
Debt Instrument [Line Items]
Long-term debt	¥ 86,000	86,000
MUFG: | Subordinated Debt | Floating Rate Borrowings I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.57%
MUFG: | Subordinated Debt | Floating Rate Borrowings I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.79%
MUFG Bank:
Debt Instrument [Line Items]
Obligations under finance leases	¥ 4,419	4,628
Total	21,396,282	21,879,593
MUFG Bank: | Unsubordinated Debt
Debt Instrument [Line Items]
Long-term debt	20,540,145	20,807,593
MUFG Bank: | Unsubordinated Debt | Fixed Rate Bonds I
Debt Instrument [Line Items]
Long-term debt	¥ 72,400	123,300
MUFG Bank: | Unsubordinated Debt | Fixed Rate Bonds I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.63%
MUFG Bank: | Unsubordinated Debt | Fixed Rate Bonds I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	2.34%
MUFG Bank: | Unsubordinated Debt | Fixed Rate Bonds II
Debt Instrument [Line Items]
Long-term debt	¥ 1,052,443	1,041,115
MUFG Bank: | Unsubordinated Debt | Fixed Rate Bonds II | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
MUFG Bank: | Unsubordinated Debt | Fixed Rate Bonds II | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	4.70%
MUFG Bank: | Unsubordinated Debt | Fixed Rate Bonds III
Debt Instrument [Line Items]
Long-term debt	¥ 6,152	109,619
Interest rate, stated percentage	1.81%
MUFG Bank: | Unsubordinated Debt | Floating Rate Borrowings I
Debt Instrument [Line Items]
Long-term debt	¥ 714,718	721,941
MUFG Bank: | Unsubordinated Debt | Floating Rate Borrowings I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.16%
MUFG Bank: | Unsubordinated Debt | Floating Rate Borrowings I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	4.45%
MUFG Bank: | Unsubordinated Debt | Fixed Rate Bonds IV
Debt Instrument [Line Items]
Long-term debt	¥ 0	¥ 3,100
Interest rate, stated percentage		0%
MUFG Bank: | Unsubordinated Debt | Fixed Rate Borrowings I
Debt Instrument [Line Items]
Long-term debt	¥ 18,582,830	¥ 18,689,074
MUFG Bank: | Unsubordinated Debt | Fixed Rate Borrowings I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
MUFG Bank: | Unsubordinated Debt | Fixed Rate Borrowings I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.25%
MUFG Bank: | Unsubordinated Debt | Fixed Rate Borrowings II
Debt Instrument [Line Items]
Long-term debt	¥ 8,371	7,833
MUFG Bank: | Unsubordinated Debt | Fixed Rate Borrowings II | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.72%
MUFG Bank: | Unsubordinated Debt | Fixed Rate Borrowings II | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	2.93%
MUFG Bank: | Unsubordinated Debt | Floating Rate Borrowings II
Debt Instrument [Line Items]
Long-term debt	¥ 103,231	111,611
MUFG Bank: | Unsubordinated Debt | Floating Rate Borrowings II | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
MUFG Bank: | Unsubordinated Debt | Floating Rate Borrowings II | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.40%
MUFG Bank: | Subordinated Debt
Debt Instrument [Line Items]
Long-term debt	¥ 332,000	449,300
MUFG Bank: | Subordinated Debt | Fixed Rate Bonds I
Debt Instrument [Line Items]
Long-term debt	¥ 236,000	350,900
MUFG Bank: | Subordinated Debt | Fixed Rate Bonds I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	1.39%
MUFG Bank: | Subordinated Debt | Fixed Rate Bonds I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	2.91%
MUFG Bank: | Subordinated Debt | Adjustable Rate Borrowings I
Debt Instrument [Line Items]
Long-term debt	¥ 10,000	10,000
Interest rate, stated percentage	1.06%
MUFG Bank: | Subordinated Debt | Floating Rate Borrowings I
Debt Instrument [Line Items]
Long-term debt	¥ 15,000	15,000
Interest rate, stated percentage	0.25%
MUFG Bank: | Subordinated Debt | Fixed Rate Borrowings I
Debt Instrument [Line Items]
Long-term debt	¥ 71,000	73,400
MUFG Bank: | Subordinated Debt | Fixed Rate Borrowings I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.43%
MUFG Bank: | Subordinated Debt | Fixed Rate Borrowings I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	2.24%
MUFG Bank: | Obligations under loan securitization transaction accounted for as secured borrowings due 2022, principally 2.25%
Debt Instrument [Line Items]
Long-term debt	¥ 519,718	618,072
MUFG Bank: | Obligations under loan securitization transaction accounted for as secured borrowings due 2022, principally 2.25% | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0.13%
MUFG Bank: | Obligations under loan securitization transaction accounted for as secured borrowings due 2022, principally 2.25% | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	10%
Other subsidiaries:
Debt Instrument [Line Items]
Obligations under finance leases	¥ 8,359	10,520
Total	3,230,462	4,037,806
Other subsidiaries: | Unsubordinated Debt
Debt Instrument [Line Items]
Long-term debt	2,893,447	3,621,245
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes I
Debt Instrument [Line Items]
Long-term debt	¥ 1,088,884	878,276
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	17.30%
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes II
Debt Instrument [Line Items]
Long-term debt	¥ 124,841	885,950
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes II | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes II | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	21.50%
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes III
Debt Instrument [Line Items]
Long-term debt	¥ 10,796	2,719
Interest rate, stated percentage	0%
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes IV
Debt Instrument [Line Items]
Long-term debt	¥ 230,630	349,666
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes IV | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes IV | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	7.15%
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes V
Debt Instrument [Line Items]
Long-term debt	¥ 306,778	320,663
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes V | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	9.50%
Other subsidiaries: | Unsubordinated Debt | Fixed Rate Borrowings, Bonds and Notes V | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
Other subsidiaries: | Unsubordinated Debt | Floating/Adjustable Rate Borrowings, Bonds and Notes I
Debt Instrument [Line Items]
Long-term debt	¥ 1,000,691	1,007,882
Other subsidiaries: | Unsubordinated Debt | Floating/Adjustable Rate Borrowings, Bonds and Notes I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
Other subsidiaries: | Unsubordinated Debt | Floating/Adjustable Rate Borrowings, Bonds and Notes I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	65%
Other subsidiaries: | Unsubordinated Debt | Floating Rate Borrowings, Bonds and Notes I
Debt Instrument [Line Items]
Long-term debt	¥ 130,597	174,997
Other subsidiaries: | Unsubordinated Debt | Floating Rate Borrowings, Bonds and Notes I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
Other subsidiaries: | Unsubordinated Debt | Floating Rate Borrowings, Bonds and Notes I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	53.50%
Other subsidiaries: | Unsubordinated Debt | Floating Rate Borrowings Bonds And Notes II
Debt Instrument [Line Items]
Long-term debt	¥ 230	1,092
Other subsidiaries: | Unsubordinated Debt | Floating Rate Borrowings Bonds And Notes II | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	0%
Other subsidiaries: | Unsubordinated Debt | Floating Rate Borrowings Bonds And Notes II | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	3%
Other subsidiaries: | Subordinated Debt
Debt Instrument [Line Items]
Long-term debt	¥ 328,655	406,030
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes I
Debt Instrument [Line Items]
Long-term debt	¥ 114,946	184,894
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes I | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	1.36%
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes I | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	2.61%
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes II
Debt Instrument [Line Items]
Long-term debt	¥ 2,262	1,212
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes II | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	7.50%
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes II | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	9.90%
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes III
Debt Instrument [Line Items]
Long-term debt	¥ 208,581	209,189
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes III | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	3%
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes III | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	3.90%
Other subsidiaries: | Subordinated Debt | Fixed Rate Borrowings, Bonds and Notes IV
Debt Instrument [Line Items]
Long-term debt	¥ 0	¥ 6,915
Interest rate, stated percentage		0%
Other subsidiaries: | Subordinated Debt | Floating Rate Borrowings Bonds And Notes II
Debt Instrument [Line Items]
Long-term debt	¥ 2,866	¥ 3,820
Interest rate, stated percentage	6.90%
Other subsidiaries: | Obligations under loan securitization transaction accounted for as secured borrowings due 2022, principally 2.25%
Debt Instrument [Line Items]
Long-term debt	¥ 1	¥ 11
Other subsidiaries: | Obligations under loan securitization transaction accounted for as secured borrowings due 2022, principally 2.25% | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	2.25%

Due to Trust Account, Short-t_7

Due to Trust Account, Short-term Borrowings and Long-term Debt (Summary of Subsequent Maturities of Long-term Debt) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Long-term debt by maturity:
2023	¥ 2,995,053
2024	2,362,791
2025	18,010,182
2026	2,408,721
2027	757,939
2028 and thereafter	8,175,607
Total	34,710,293	¥ 35,171,041
MUFG
Long-term debt by maturity:
2023	987,009
2024	827,301
2025	1,060,164
2026	966,692
2027	414,824
2028 and thereafter	5,827,559
Total	10,083,549	9,253,642
BK
Long-term debt by maturity:
2023	981,284
2024	1,107,551
2025	16,551,665
2026	1,218,584
2027	156,907
2028 and thereafter	1,380,291
Total	21,396,282	21,879,593
Other subsidiaries
Long-term debt by maturity:
2023	1,026,760
2024	427,939
2025	398,353
2026	223,445
2027	186,208
2028 and thereafter	967,757
Total	¥ 3,230,462	¥ 4,037,806

Severance Indemnities and Pen_3

Severance Indemnities and Pension Plans (Narrative) (Detail)	12 Months Ended
	Mar. 31, 2022 JPY (¥)	Mar. 31, 2021 JPY (¥)	Mar. 31, 2020 JPY (¥)
Defined Benefit Plan Disclosure [Line Items]
Eligible age for lifetime annuity payments		65 years
Special lump-sum early termination benefits charged to operations for the fiscal year	¥ 16,235,000,000	¥ 16,716,000,000	¥ 13,883,000,000
Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Number of major fund types	4
Domestic, Japan | Pension benefits and SIPs | Other debt securities and Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of debt securities issued by the MUFG Group included in plan assets	¥ 625,000,000	¥ 600,000,000
Percentage of fair value of debt securities issued by the MUFG Group to total fair value of plan assets	0.02%	0.02%
Domestic, Japan | Pension benefits and SIPs | Japanese marketable equity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of common stock issued by the MUFG Group included in plan assets	¥ 4,606,000,000	¥ 6,116,000,000
Percentage of fair value of common stock issued by the MUFG Group to total fair value of plan assets	0.13%	0.18%

Severance Indemnities and Pen_4

Severance Indemnities and Pension Plans (Components of Net Periodic Cost of Pension Benefits and Other Benefits) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost (income)	¥ (25,675)	¥ 2,804	¥ (6,917)
Domestic, Japan | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the fiscal year	44,160	46,861	49,194
Interest cost on projected benefit obligation	11,995	11,091	10,969
Expected return on plan assets	(81,902)	(71,078)	(74,744)
Amortization of net actuarial loss	770	17,019	5,641
Amortization of prior service cost	(1,280)	(1,205)	(1,204)
Loss (gain) on settlements and curtailment	(5,820)	(4,605)	(2,366)
Net periodic benefit cost (income)	(32,077)	(1,917)	(12,510)
Foreign offices and subsidiaries | Pension benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the fiscal year	16,853	13,947	14,406
Interest cost on projected benefit obligation	11,233	14,295	17,370
Expected return on plan assets	(33,269)	(31,161)	(31,382)
Amortization of net actuarial loss	16,573	11,560	8,685
Amortization of prior service cost	(2,802)	(2,614)	(2,633)
Loss (gain) on settlements and curtailment	44	30	223
Net periodic benefit cost (income)	8,632	6,057	6,669
Foreign offices and subsidiaries | Other benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the fiscal year	140	229	366
Interest cost on projected benefit obligation	494	793	1,159
Expected return on plan assets	(2,415)	(2,118)	(1,882)
Amortization of net actuarial loss	(64)	208	1,162
Amortization of prior service cost	(385)	(448)	(1,881)
Loss (gain) on settlements and curtailment	0	0	0
Net periodic benefit cost (income)	¥ (2,230)	¥ (1,336)	¥ (1,076)

Severance Indemnities and Pen_5

Severance Indemnities and Pension Plans (Summary of Assumptions Used in Computation) (Detail)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Domestic, Japan | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Discount rates in determining expense	0.71%	0.63%	0.61%
Discount rates in determining benefit obligation	0.86%	0.71%	0.63%
Rates of increase in future compensation level for determining expense	3.46%	3.46%	3.21%
Rates of increase in future compensation level for determining benefit obligation	3.46%	3.46%	3.46%
Expected rates of return on plan assets	2.89%	2.93%	2.89%
Cash balance crediting rate for determining expense	2.46%	2.46%	2.46%
Cash balance crediting rate for determining benefit obligation	2.46%	2.46%	2.46%
Foreign offices and subsidiaries | Pension benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rates in determining expense	2.19%	2.94%	3.80%
Discount rates in determining benefit obligation	2.78%	2.34%	3.05%
Rates of increase in future compensation level for determining expense	5.09%	5.12%	5.01%
Rates of increase in future compensation level for determining benefit obligation	5.04%	5.09%	5.12%
Expected rates of return on plan assets	5.91%	6.19%	6.25%
Cash balance crediting rate for determining expense	1.62%	2.39%	3.03%
Cash balance crediting rate for determining benefit obligation	1.94%	1.62%	2.39%
Foreign offices and subsidiaries | Other benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rates in determining expense	1.82%	2.72%	3.87%
Discount rates in determining benefit obligation	2.63%	2.23%	2.96%
Rates of increase in future compensation level for determining expense	0%	0%	0%
Rates of increase in future compensation level for determining benefit obligation	0%	0%	0%
Expected rates of return on plan assets	7%	7%	7%
Cash balance crediting rate for determining expense	0%	0%	0%
Cash balance crediting rate for determining benefit obligation	0%	0%	0%

Severance Indemnities and Pen_6

Severance Indemnities and Pension Plans (Assumed Health Care Cost Trend Rates and Effect of a One-percentage-point Change for Foreign Offices and Subsidiaries) (Detail)	Mar. 31, 2022	Mar. 31, 2021
MUAH
Defined benefit plan, assumed health care cost trend rates for the next fiscal year:
Initial trend rate	4.13%	4.17%
Ultimate trend rate	3.77%	3.78%
Other than MUAH
Defined benefit plan, assumed health care cost trend rates for the next fiscal year:
Initial trend rate	6.50%	6.50%
Ultimate trend rate	4.50%	4.50%

Severance Indemnities and Pen_7

Severance Indemnities and Pension Plans (Combined Funded Status and Amounts Recognized in Consolidated Balance Sheets) (Detail) - JPY (¥)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Amounts recognized in the consolidated balance sheets:
Prepaid benefit cost	¥ 1,356,603,000,000	¥ 1,223,706,000,000
Accrued benefit cost	(89,062,000,000)	(93,730,000,000)
Domestic, Japan | Non-contributory pension benefits and SIP
Change in benefit obligation:
Benefit obligation at beginning of fiscal year	1,753,483,000,000	1,807,905,000,000
Service cost	44,160,000,000	46,861,000,000
Interest cost	11,995,000,000	11,091,000,000
Plan participants’ contributions	0	0
Acquisitions/ Divestitures	242,000,000	2,845,000,000
Amendments	(1,054,000,000)	(22,000,000)
Actuarial loss (gain)	(28,814,000,000)	(21,558,000,000)
Benefits paid	(65,853,000,000)	(65,730,000,000)
Lump-sum payment	(21,570,000,000)	(22,219,000,000)
Translation adjustments and other	0	0
Benefit obligation at end of fiscal year	1,692,105,000,000	1,753,483,000,000	¥ 1,807,905,000,000
Change in plan assets:
Fair value of plan assets at beginning of fiscal year	2,858,013,000,000	2,432,847,000,000
Actual return on plan assets	77,848,000,000	472,185,000,000
Employer contributions	20,487,000,000	21,151,000,000
Acquisitions/ Divestitures	8,000,000	(2,440,000,000)
Plan participants’ contributions	0	0
Benefits paid	(65,853,000,000)	(65,730,000,000)
Translation adjustments and other	0	0
Fair value of plan assets at end of fiscal year	2,890,503,000,000	2,858,013,000,000	2,432,847,000,000
Amounts recognized in the consolidated balance sheets:
Prepaid benefit cost	1,216,703,000,000	1,122,507,000,000
Accrued benefit cost	(18,305,000,000)	(17,977,000,000)
Net amount recognized	1,198,398,000,000	1,104,530,000,000
Foreign offices and subsidiaries | Pension benefits
Change in benefit obligation:
Benefit obligation at beginning of fiscal year	580,953,000,000	547,013,000,000
Service cost	16,853,000,000	13,947,000,000	14,406,000,000
Interest cost	11,233,000,000	14,295,000,000	17,370,000,000
Plan participants’ contributions	0	30,000,000
Acquisitions/ Divestitures	130,000,000	260,000,000
Amendments	402,000,000	(1,187,000,000)
Actuarial loss (gain)	(24,611,000,000)	51,724,000,000
Benefits paid	(24,501,000,000)	(20,816,000,000)
Lump-sum payment	(3,591,000,000)	(2,825,000,000)
Translation adjustments and other	(63,131,000,000)	20,968,000,000
Benefit obligation at end of fiscal year	619,739,000,000	580,953,000,000	547,013,000,000
Change in plan assets:
Fair value of plan assets at beginning of fiscal year	604,404,000,000	559,508,000,000
Actual return on plan assets	49,277,000,000	82,615,000,000
Employer contributions	4,627,000,000	3,896,000,000
Acquisitions/ Divestitures	0	0
Plan participants’ contributions	0	30,000,000
Benefits paid	(24,501,000,000)	(20,816,000,000)
Translation adjustments and other	72,057,000,000	(20,829,000,000)
Fair value of plan assets at end of fiscal year	705,864,000,000	604,404,000,000	559,508,000,000
Amounts recognized in the consolidated balance sheets:
Prepaid benefit cost	153,861,000,000	94,445,000,000
Accrued benefit cost	(67,736,000,000)	(70,994,000,000)
Net amount recognized	86,125,000,000	23,451,000,000
Foreign offices and subsidiaries | Other benefits
Change in benefit obligation:
Benefit obligation at beginning of fiscal year	31,354,000,000	32,383,000,000
Service cost	140,000,000	229,000,000	366,000,000
Interest cost	494,000,000	793,000,000	1,159,000,000
Plan participants’ contributions	433,000,000	440,000,000
Acquisitions/ Divestitures	0	0
Amendments	0	0
Actuarial loss (gain)	(2,269,000,000)	1,506,000,000
Benefits paid	(2,580,000,000)	(2,488,000,000)
Lump-sum payment	0	0
Translation adjustments and other	(3,219,000,000)	1,509,000,000
Benefit obligation at end of fiscal year	30,791,000,000	31,354,000,000	32,383,000,000
Change in plan assets:
Fair value of plan assets at beginning of fiscal year	33,349,000,000	31,919,000,000
Actual return on plan assets	4,619,000,000	5,165,000,000
Employer contributions		181,000,000
Acquisitions/ Divestitures	0	0
Plan participants’ contributions	433,000,000	440,000,000
Benefits paid	(2,580,000,000)	(2,488,000,000)
Translation adjustments and other	3,823,000,000	(1,868,000,000)
Fair value of plan assets at end of fiscal year	39,528,000,000	33,349,000,000	¥ 31,919,000,000
Amounts recognized in the consolidated balance sheets:
Prepaid benefit cost	12,104,000,000	6,754,000,000
Accrued benefit cost	(3,367,000,000)	(4,759,000,000)
Net amount recognized	8,737,000,000	¥ 1,995,000,000
Foreign offices and subsidiaries | Other benefits netting
Change in plan assets:
Employer contributions	¥ (116,000,000)

Severance Indemnities and Pen_8

Severance Indemnities and Pension Plans (Aggregated Accumulated Benefit Obligations) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Domestic, Japan | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Aggregated accumulated benefit obligations	¥ 1,663,543	¥ 1,719,798
Foreign offices and subsidiaries | Pension benefits and other benefits
Defined Benefit Plan Disclosure [Line Items]
Aggregated accumulated benefit obligations	¥ 596,153	¥ 554,375

Severance Indemnities and Pen_9

Severance Indemnities and Pension Plans (Summary for Plans with Accumulated Benefit Obligations in Excess of Plan Assets) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Domestic, Japan | Pension benefits and SIPs
Defined benefit plan, pension plans with accumulated benefit obligations in excess of plan assets:
Projected benefit obligations	¥ 25,327	¥ 24,527
Accumulated benefit obligations	25,327	24,527
Fair value of plan assets	7,223	6,738
Foreign offices and subsidiaries | Pension benefits and other benefits
Defined benefit plan, pension plans with accumulated benefit obligations in excess of plan assets:
Projected benefit obligations	87,876	92,527
Accumulated benefit obligations	67,612	68,720
Fair value of plan assets	¥ 20,139	¥ 21,532

Severance Indemnities and Pe_10

Severance Indemnities and Pension Plans (Amounts Recognized in Accumulated OCI) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Domestic, Japan | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	¥ (18,183)	¥ 1,557
Prior service cost	(2,845)	(3,072)
Gross amount recognized in Accumulated OCI	(21,028)	(1,515)
Taxes	(36,389)	(41,639)
Net amount recognized in Accumulated OCI	(57,417)	(43,154)
Foreign offices and subsidiaries | Pension benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	47,093	96,807
Prior service cost	(3,742)	(6,167)
Gross amount recognized in Accumulated OCI	43,351	90,640
Taxes	(12,092)	(23,900)
Net amount recognized in Accumulated OCI	31,259	66,740
Foreign offices and subsidiaries | Other benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	(1,070)	3,255
Prior service cost	(1,650)	(1,869)
Gross amount recognized in Accumulated OCI	(2,720)	1,386
Taxes	616	(489)
Net amount recognized in Accumulated OCI	¥ (2,104)	¥ 897

Severance Indemnities and Pe_11

Severance Indemnities and Pension Plans (Amounts Recognized in OCI) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Domestic, Japan | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain) arising during the year	¥ (24,790)	¥ (423,283)
Prior service cost arising during the year	(1,053)	(22)
Losses (gains) due to amortization:
Net actuarial loss (gain)	(770)	(17,019)
Prior service cost	1,280	1,205
Curtailment and settlement	5,820	4,605
Foreign currency translation adjustments	0	0
Total changes in Accumulated OCI	(19,513)	(434,514)
Foreign offices and subsidiaries | Pension benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain) arising during the year	(40,559)	319
Prior service cost arising during the year	402	(1,187)
Losses (gains) due to amortization:
Net actuarial loss (gain)	(16,573)	(11,560)
Prior service cost	2,802	2,614
Curtailment and settlement	(44)	(30)
Foreign currency translation adjustments	6,683	(5,808)
Total changes in Accumulated OCI	(47,289)	(15,652)
Foreign offices and subsidiaries | Other benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain) arising during the year	(4,471)	(1,541)
Prior service cost arising during the year	55	0
Losses (gains) due to amortization:
Net actuarial loss (gain)	64	(208)
Prior service cost	385	448
Curtailment and settlement	0	0
Foreign currency translation adjustments	(139)	(173)
Total changes in Accumulated OCI	¥ (4,106)	¥ (1,474)

Severance Indemnities and Pe_12

Severance Indemnities and Pension Plans (Weighted-average Target Asset Allocation of Plan Assets for Pension Benefits and Other Benefits) (Detail)	Mar. 31, 2022
Domestic, Japan | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	100%
Domestic, Japan | Pension benefits and SIPs | Japanese equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	35.50%
Domestic, Japan | Pension benefits and SIPs | Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	28.40%
Domestic, Japan | Pension benefits and SIPs | Non-Japanese equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	14.80%
Domestic, Japan | Pension benefits and SIPs | Non-Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	14.50%
Domestic, Japan | Pension benefits and SIPs | Real estate
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	1.50%
Domestic, Japan | Pension benefits and SIPs | Short-term assets and other
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	5.30%
Foreign offices and subsidiaries | Pension benefits
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	100%
Foreign offices and subsidiaries | Pension benefits | Japanese equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	0%
Foreign offices and subsidiaries | Pension benefits | Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	0%
Foreign offices and subsidiaries | Pension benefits | Non-Japanese equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	41.30%
Foreign offices and subsidiaries | Pension benefits | Non-Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	42%
Foreign offices and subsidiaries | Pension benefits | Real estate
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	10.20%
Foreign offices and subsidiaries | Pension benefits | Short-term assets and other
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	6.50%
Foreign offices and subsidiaries | Other benefits
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	100%
Foreign offices and subsidiaries | Other benefits | Japanese equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	0%
Foreign offices and subsidiaries | Other benefits | Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	0%
Foreign offices and subsidiaries | Other benefits | Non-Japanese equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	63%
Foreign offices and subsidiaries | Other benefits | Non-Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	27%
Foreign offices and subsidiaries | Other benefits | Real estate
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	10%
Foreign offices and subsidiaries | Other benefits | Short-term assets and other
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan assets	0%

Severance Indemnities and Pe_13

Severance Indemnities and Pension Plans (Estimated Future Benefit Payments) (Detail) ¥ in Millions	Mar. 31, 2022 JPY (¥)
Domestic, Japan | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
2023	¥ 80,812
2024	79,376
2025	79,934
2026	78,977
2027	77,807
Thereafter (2028-2032)	380,256
Foreign offices and subsidiaries | Pension benefits
Defined Benefit Plan Disclosure [Line Items]
2023	26,258
2024	27,869
2025	28,678
2026	30,656
2027	32,659
Thereafter (2028-2032)	197,642
Foreign offices and subsidiaries | Other benefits
Defined Benefit Plan Disclosure [Line Items]
2023	2,198
2024	2,228
2025	2,203
2026	2,142
2027	2,062
Thereafter (2028-2032)	¥ 8,335

Severance Indemnities and Pe_14

Severance Indemnities and Pension Plans (Fair Value of Each Major Category of Plan Assets for Pension Benefits and SIP Investments: Domestic Subsidiaries) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Domestic, Japan | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	¥ 1,340,873	¥ 1,345,185
Approximate guaranteed rate of return of "Japanese general accounts of life insurance companies"	1.25%	1.25%
Domestic, Japan | Pension benefits and SIPs | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	¥ 1,098,772	¥ 1,107,383
Domestic, Japan | Pension benefits and SIPs | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	241,869	237,572
Domestic, Japan | Pension benefits and SIPs | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	232	230
Domestic, Japan | Pension benefits and SIPs | Japanese government bonds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	140,538	145,236
Domestic, Japan | Pension benefits and SIPs | Japanese government bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	140,538	145,236
Domestic, Japan | Pension benefits and SIPs | Japanese government bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Japanese government bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Non-Japanese government bonds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Non-Japanese government bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Non-Japanese government bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Non-Japanese government bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Other debt securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	24,830	24,431
Domestic, Japan | Pension benefits and SIPs | Other debt securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	9,950	10,136
Domestic, Japan | Pension benefits and SIPs | Other debt securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	14,648	14,065
Domestic, Japan | Pension benefits and SIPs | Other debt securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	232	230
Domestic, Japan | Pension benefits and SIPs | Japanese marketable equity securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	848,482	862,096
Domestic, Japan | Pension benefits and SIPs | Japanese marketable equity securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	848,482	862,096
Domestic, Japan | Pension benefits and SIPs | Japanese marketable equity securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Japanese marketable equity securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Non-Japanese marketable equity securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	88,159	82,113
Domestic, Japan | Pension benefits and SIPs | Non-Japanese marketable equity securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	87,983	81,525
Domestic, Japan | Pension benefits and SIPs | Non-Japanese marketable equity securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	176	588
Domestic, Japan | Pension benefits and SIPs | Non-Japanese marketable equity securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Other investment funds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Other investment funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Other investment funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Other investment funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Japanese general account of life insurance companies
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	209,482	217,827
Domestic, Japan | Pension benefits and SIPs | Japanese general account of life insurance companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Japanese general account of life insurance companies | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	209,482	217,827
Domestic, Japan | Pension benefits and SIPs | Japanese general account of life insurance companies | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Domestic, Japan | Pension benefits and SIPs | Other investments
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	29,382	13,482
Domestic, Japan | Pension benefits and SIPs | Other investments | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	11,819	8,390
Domestic, Japan | Pension benefits and SIPs | Other investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	17,563	5,092
Domestic, Japan | Pension benefits and SIPs | Other investments | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	564,941	457,678
Foreign offices and subsidiaries | Pension benefits and SIPs | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	187,989	156,021
Foreign offices and subsidiaries | Pension benefits and SIPs | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	337,223	301,324
Foreign offices and subsidiaries | Pension benefits and SIPs | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	39,729	333
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese government bonds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese government bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese government bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese government bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Non-Japanese government bonds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	74,272	48,750
Foreign offices and subsidiaries | Pension benefits and SIPs | Non-Japanese government bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	68,887	44,105
Foreign offices and subsidiaries | Pension benefits and SIPs | Non-Japanese government bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	5,385	4,645
Foreign offices and subsidiaries | Pension benefits and SIPs | Non-Japanese government bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Other debt securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	133,815	117,696
Foreign offices and subsidiaries | Pension benefits and SIPs | Other debt securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Other debt securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	133,815	117,696
Foreign offices and subsidiaries | Pension benefits and SIPs | Other debt securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese marketable equity securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese marketable equity securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese marketable equity securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese marketable equity securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Non-Japanese marketable equity securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	35,215	35,255
Foreign offices and subsidiaries | Pension benefits and SIPs | Non-Japanese marketable equity securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	34,659	34,584
Foreign offices and subsidiaries | Pension benefits and SIPs | Non-Japanese marketable equity securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	556	671
Foreign offices and subsidiaries | Pension benefits and SIPs | Non-Japanese marketable equity securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Other investment funds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	269,814	241,330
Foreign offices and subsidiaries | Pension benefits and SIPs | Other investment funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	83,442	76,520
Foreign offices and subsidiaries | Pension benefits and SIPs | Other investment funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	186,372	164,810
Foreign offices and subsidiaries | Pension benefits and SIPs | Other investment funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese general account of life insurance companies
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese general account of life insurance companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese general account of life insurance companies | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Japanese general account of life insurance companies | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	0	0
Foreign offices and subsidiaries | Pension benefits and SIPs | Other investments
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	51,825	14,647
Foreign offices and subsidiaries | Pension benefits and SIPs | Other investments | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	1,001	812
Foreign offices and subsidiaries | Pension benefits and SIPs | Other investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	11,095	13,502
Foreign offices and subsidiaries | Pension benefits and SIPs | Other investments | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	¥ 39,729	¥ 333
Foreign offices and subsidiaries | Pension benefits | Other investment funds | Mutual funds | MUAH
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets			¥ 86,724	¥ 80,717
Foreign offices and subsidiaries | Pension benefits | Other investment funds | Common collective funds | MUAH
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets			¥ 146,169	¥ 128,005

Severance Indemnities and Pe_15

Severance Indemnities and Pension Plans (Fair Values of Investments Valued at Net Asset per Share (or Its Equivalent) for Pension Benefits and SIP Investments) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Domestic, Japan | Pension benefits and SIPs
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	¥ 1,549,630	¥ 1,512,828
Domestic, Japan | Pension benefits and SIPs | Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	625,237	580,617
Domestic, Japan | Pension benefits and SIPs | Real estate funds
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	15,417	14,763
Domestic, Japan | Pension benefits and SIPs | Total pooled funds
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	886,893	902,305
Domestic, Japan | Pension benefits and SIPs | Total pooled funds | Japanese marketable equity securities
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	104,793	118,509
Domestic, Japan | Pension benefits and SIPs | Total pooled funds | Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	221,250	324,700
Domestic, Japan | Pension benefits and SIPs | Total pooled funds | Non-Japanese marketable equity securities
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	219,018	90,598
Domestic, Japan | Pension benefits and SIPs | Total pooled funds | Non-Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	249,274	215,015
Domestic, Japan | Pension benefits and SIPs | Total pooled funds | Other
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	92,558	153,483
Domestic, Japan | Pension benefits and SIPs | Other investment funds
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	662,737	610,523
Foreign offices and subsidiaries | Pension benefits
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	140,923	146,726
Foreign offices and subsidiaries | Pension benefits | Total pooled funds
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	0	0
Foreign offices and subsidiaries | Pension benefits | Total pooled funds | Japanese marketable equity securities
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	0	0
Foreign offices and subsidiaries | Pension benefits | Total pooled funds | Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	0	0
Foreign offices and subsidiaries | Pension benefits | Total pooled funds | Non-Japanese marketable equity securities
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	0	0
Foreign offices and subsidiaries | Pension benefits | Total pooled funds | Non-Japanese debt securities
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	0	0
Foreign offices and subsidiaries | Pension benefits | Total pooled funds | Other
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	0	0
Foreign offices and subsidiaries | Pension benefits | Other investment funds
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	140,923	146,726
Foreign offices and subsidiaries | Pension benefits | Other investment funds | Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	25,356	58,086
Foreign offices and subsidiaries | Pension benefits | Other investment funds | Real estate funds
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	80,349	51,318
Foreign offices and subsidiaries | Pension benefits | Other investment funds | Common collective funds
Defined Benefit Plan Disclosure [Line Items]
Investments valued at net asset per share (or its equivalent)	¥ 34,971	¥ 37,161

Other Assets and Liabilities (M

Other Assets and Liabilities (Major Components of Other Assets and Liabilities) (Detail) - JPY (¥) ¥ in Millions	Apr. 01, 2020	Mar. 31, 2022	Mar. 31, 2021
Other assets:
Receivables from brokers, dealers and customers for securities transactions		¥ 644,443	¥ 400,776
Accounts receivable: Other		1,187,311	1,162,424
Investments in equity method investees		3,066,738	2,560,339
Prepaid benefit cost (Note 13)		1,356,603	1,223,706
Cash collateral pledged for derivative transactions (Note 9)		2,893,178	2,005,136
Cash collateral for the use of Bank of Japan’s settlement infrastructure		933,000	998,838
Accrued interest		246,271	259,336
Deferred tax assets (Note 8)		79,191	122,031
Right-of-use assets of operating leases (Note 7)		261,803	338,547
Other		4,421,979	4,250,171
Total		26,712,084	13,321,304
Other liabilities:
Payables to brokers, dealers and customers for securities transactions		1,970,158	1,202,371
Other		1,311,035	1,281,436
Obligations to return securities received as collateral (Notes 15, 16 and 31)		6,826,215	6,581,759
Accrued interest		98,183	110,856
Deferred tax liabilities (Note 8)		530,267	827,571
Allowance for off-balance sheet credit instruments		126,055	83,615
Accrued benefit cost (Note 13)		89,062	93,730
Guarantees and indemnifications		45,358	38,123
Cash collateral received for derivative transactions (Note 9)		1,017,580	909,641
Obligations under operating leases (Note 7)		384,183	476,104
Accrued and other liabilities		3,106,706	3,465,614
Total		26,662,462	15,070,820
Disposal group, disposed of by sale, not discontinued operations
Other assets:
Assets held for sale relating to transferred business of MUFG Union Bank (Note 2)		11,621,567	0
Other liabilities:
Liabilities held for sale relating to transferred business of MUFG Union Bank (Note 2)		11,157,660	0
Credit card receivable
Other liabilities:
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	¥ 10,248
Card | Total past due
Other assets:
Accounts receivable: Other		5,483	4,980
Card | 1 to 3 months past due
Other assets:
Accounts receivable: Other		2,581	2,252
Card | Greater than 3 months past due
Other assets:
Accounts receivable: Other		¥ 2,902	¥ 2,728

Other Assets and Liabilities (N

Other Assets and Liabilities (Narrative) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Schedule of Equity Method Investments [Line Items]
Investments in equity method investees	¥ 3,066,738	¥ 2,560,339
Marketable equity securities included in investment in equity method investees, aggregated market values	4,714,562	3,943,990
Investment in equity method investees, recognized impairment losses of other-than-temporary declines in the value of investments in certain affiliated companies	¥ 6,949	53,758	¥ 21,672
Morgan Stanley
Schedule of Equity Method Investments [Line Items]
Equity method investment, Ownership percentage, approximately	21.47%
Marketable equity securities
Schedule of Equity Method Investments [Line Items]
Investments in equity method investees	¥ 2,481,644	1,964,118
Marketable equity securities | Morgan Stanley
Schedule of Equity Method Investments [Line Items]
Investments in equity method investees	2,058,638	1,618,579
Marketable equity securities | Morgan Stanley MUFG Securities, Co., Ltd.
Schedule of Equity Method Investments [Line Items]
Investments in equity method investees	¥ 183,932	¥ 174,190

Other Assets and Liabilities (S

Other Assets and Liabilities (Summarized Financial Information of Morgan Stanley) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Schedule of Equity Method Investments [Line Items]
Total assets	¥ 367,650,018	¥ 353,824,625	¥ 331,753,283
Total liabilities	351,353,496	337,580,071
Noncontrolling interests	691,454	583,605
Equity Method Investment, Summarized Financial Information, Income and Loss
Net income applicable to Morgan Stanley	(44,216)	1,163,394	318,715
Morgan Stanley
Schedule of Equity Method Investments [Line Items]
Trading assets	36,335,000	34,670,000
Securities purchased under agreements to resell	15,637,000	12,701,000
Securities borrowed	18,480,000	11,309,000
Total assets	149,589,000	128,288,000
Deposits	44,163,000	35,775,000
Customer and other payables	29,815,000	25,477,000
Borrowings	28,127,000	23,894,000
Total liabilities	136,851,000	116,377,000
Noncontrolling interests	144,000	147,000
Equity Method Investment, Summarized Financial Information, Income and Loss
Net revenues	6,655,000	5,841,000	4,457,000
Total non-interest expenses	4,498,000	3,932,000	3,259,000
Income from continuing operations before income taxes	2,139,000	1,881,000	1,140,000
Net income applicable to Morgan Stanley	¥ 1,650,000	¥ 1,433,000	¥ 903,000

Other Assets and Liabilities _2

Other Assets and Liabilities (Summarized Financial Information of Equity Method Investees, Other than Morgan Stanley) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Schedule of Equity Method Investments [Line Items]
Total assets	¥ 367,650,018	¥ 353,824,625	¥ 331,753,283
Total liabilities	351,353,496	337,580,071
Noncontrolling interests	691,454	583,605
Equity Method Investment, Summarized Financial Information, Income and Loss
Net income applicable to Morgan Stanley	(44,216)	1,163,394	318,715
Equity Method Investees Other than Morgan Stanley
Schedule of Equity Method Investments [Line Items]
Net loans	17,107,000	15,417,000
Total assets	32,992,000	28,459,000
Deposits	11,291,000	9,651,000
Total liabilities	27,255,000	24,176,000
Noncontrolling interests	93,000	85,000
Equity Method Investment, Summarized Financial Information, Income and Loss
Total interest income	1,119,000	1,058,000	1,093,000
Total interest expense	335,000	375,000	419,000
Net interest income	784,000	683,000	674,000
Provision for credit losses	207,000	215,000	171,000
Income before income tax expense	582,000	476,000	366,000
Net income applicable to Morgan Stanley	¥ 488,000	¥ 400,000	¥ 285,000

Offsetting of Derivatives, Re_3

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions (Summary of Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Offsetting Derivative Assets [Abstract]
Derivative assets, Gross amounts of recognized assets/liabilities		¥ 11,997,000
Derivative assets, Gross amounts offset in the condensed consolidated balance sheet		0
Derivative assets, Net amounts presented in the condensed consolidated balance sheet	¥ 10,534,000	11,997,000
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments		(8,628,000)
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged		(605,000)
Derivative assets, Net amounts		2,764,000
Offsetting Securities Purchased under Agreements to Resell [Abstract]
Receivables under resale agreements, Gross amounts of recognized assets/liabilities		16,053,000
Receivables under resale agreements, Gross amounts offset in the consolidated balance sheet		(2,273,000)
Receivables under resale agreements, Net amounts presented in the consolidated balance sheet	12,503,396	13,779,763
Receivables under resale agreements, Gross amounts not offset in the consolidated balance sheet, Financial instruments		(12,687,000)
Receivables under resale agreements, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged		(37,000)
Receivables under resale agreements, Net amounts		1,056,000
Offsetting Securities Borrowed [Abstract]
Receivables under securities borrowing transactions, Gross amounts of recognized assets/liabilities		3,370,000
Receivables under securities borrowing transactions, Gross amounts offset in the consolidated balance sheet		0
Receivables under securities borrowing transactions, Net amounts presented in the consolidated balance sheet	4,496,376	3,369,903
Receivables under securities borrowing transactions, Gross amounts not offset in the consolidated balance sheet, Financial instruments		(3,289,000)
Receivables under securities borrowing transactions, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged		0
Receivables under securities borrowing transactions, Net amounts		81,000
Offsetting Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed [Abstract]
Financial assets, Gross amounts of recognized assets/liabilities, Total		31,420,000
Financial assets, Gross amounts offset in the consolidated balance sheet, Total		(2,273,000)
Financial assets, Net amounts presented in the consolidated balance sheet, Total		29,147,000
Financial assets, Gross amounts not offset in the consolidated balance sheet, Financial instruments, Total		(24,604,000)
Financial assets, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged, Total		(642,000)
Financial assets, Net amounts, Total		3,901,000
Offsetting Derivative Liabilities [Abstract]
Derivative liabilities, Gross amounts of recognized assets/liabilities		11,714,000
Derivative liabilities, Gross amounts offset in the consolidated balance sheet		0
Derivative liabilities, Net amounts presented in the consolidated balance sheet	10,895,000	11,714,000
Derivative liabilities, Gross amounts not offset in the consolidated balance sheet, Financial instruments		(8,545,000)
Derivative liabilities, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged		(1,624,000)
Derivative liabilities, Net amounts		1,545,000
Offsetting Securities Sold under Agreements to Repurchase [Abstract]
Payables under repurchase agreements, Gross amounts of recognized assets/liabilities	29,717,000	26,800,000
Payables under repurchase agreements, Gross amounts offset in the consolidated balance sheet		(2,232,000)
Payables under repurchase agreements, Net amounts presented in the consolidated balance sheet		24,568,000
Payables under repurchase agreements, Gross amounts not offset in the consolidated balance sheet, Financial instruments		(23,835,000)
Payables under repurchase agreements, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged		(60,000)
Payables under repurchase agreements, Net amounts		673,000
Offsetting Securities Loaned [Abstract]
Payables under securities lending transactions, Gross amounts of recognized assets/liabilities	1,097,000	843,000
Payables under securities lending transactions, Gross amounts offset in the consolidated balance sheet		0
Payables under securities lending transactions, Net amounts presented in the consolidated balance sheet	1,021,887	842,590
Payables under securities lending transactions, Gross amounts not offset in the consolidated balance sheet, Financial instruments		(814,000)
Payables under securities lending transactions, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged		(2,000)
Payables under securities lending transactions, Net amounts		27,000
Offsetting Obligations To Return Securities Received As Collateral [Abstract]
Obligations to return securities received as collateral, Gross amounts of recognized assets/liabilities	6,826,000	6,582,000
Obligations to return securities received as collateral, Gross amounts offset in the consolidated balance sheet		0
Obligations to return securities received as collateral, Net amounts presented in the consolidated balance sheet	6,826,215	6,581,759
Obligations to return securities received as collateral, Gross amounts not offset in the consolidated balance sheet, Financial instruments		(1,931,000)
Obligations to return securities received as collateral, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged		0
Obligations to return securities received as collateral, Net amounts		4,651,000
Offsetting Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned [Abstract]
Financial liabilities, Gross amounts of recognized assets/liabilities, Total		45,939,000
Financial liabilities, Gross amounts offset in the consolidated balance sheet, Total		(2,232,000)
Financial liabilities, Net amounts presented in the consolidated balance sheet, Total		43,707,000
Financial liabilities, Gross amounts not offset in the consolidated balance sheet, Financial instruments, Total		(35,125,000)
Financial liabilities, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged, Total		(1,686,000)
Financial liabilities, Net amounts, Total		¥ 6,896,000
Financial Instruments including those of transferred business of MUFG Union Bank
Offsetting Derivative Assets [Abstract]
Derivative assets, Gross amounts of recognized assets/liabilities	10,611,000
Derivative assets, Gross amounts offset in the condensed consolidated balance sheet	0
Derivative assets, Net amounts presented in the condensed consolidated balance sheet	10,611,000
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments	(7,032,000)
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged	(620,000)
Derivative assets, Net amounts	2,959,000
Offsetting Securities Purchased under Agreements to Resell [Abstract]
Receivables under resale agreements, Gross amounts of recognized assets/liabilities	14,527,000
Receivables under resale agreements, Gross amounts offset in the consolidated balance sheet	(2,024,000)
Receivables under resale agreements, Net amounts presented in the consolidated balance sheet	12,503,000
Receivables under resale agreements, Gross amounts not offset in the consolidated balance sheet, Financial instruments	(11,614,000)
Receivables under resale agreements, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged	(29,000)
Receivables under resale agreements, Net amounts	860,000
Offsetting Securities Borrowed [Abstract]
Receivables under securities borrowing transactions, Gross amounts of recognized assets/liabilities	4,571,000
Receivables under securities borrowing transactions, Gross amounts offset in the consolidated balance sheet	(75,000)
Receivables under securities borrowing transactions, Net amounts presented in the consolidated balance sheet	4,496,000
Receivables under securities borrowing transactions, Gross amounts not offset in the consolidated balance sheet, Financial instruments	(4,367,000)
Receivables under securities borrowing transactions, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged	0
Receivables under securities borrowing transactions, Net amounts	129,000
Offsetting Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed [Abstract]
Financial assets, Gross amounts of recognized assets/liabilities, Total	29,709,000
Financial assets, Gross amounts offset in the consolidated balance sheet, Total	(2,099,000)
Financial assets, Net amounts presented in the consolidated balance sheet, Total	27,610,000
Financial assets, Gross amounts not offset in the consolidated balance sheet, Financial instruments, Total	(23,013,000)
Financial assets, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged, Total	(649,000)
Financial assets, Net amounts, Total	3,948,000
Offsetting Derivative Liabilities [Abstract]
Derivative liabilities, Gross amounts of recognized assets/liabilities	10,948,000
Derivative liabilities, Gross amounts offset in the consolidated balance sheet	0
Derivative liabilities, Net amounts presented in the consolidated balance sheet	10,948,000
Derivative liabilities, Gross amounts not offset in the consolidated balance sheet, Financial instruments	(6,749,000)
Derivative liabilities, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged	(2,225,000)
Derivative liabilities, Net amounts	1,974,000
Offsetting Securities Sold under Agreements to Repurchase [Abstract]
Payables under repurchase agreements, Gross amounts of recognized assets/liabilities	29,717,000
Payables under repurchase agreements, Gross amounts offset in the consolidated balance sheet	(1,991,000)
Payables under repurchase agreements, Net amounts presented in the consolidated balance sheet	27,726,000
Payables under repurchase agreements, Gross amounts not offset in the consolidated balance sheet, Financial instruments	(26,115,000)
Payables under repurchase agreements, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged	(85,000)
Payables under repurchase agreements, Net amounts	1,526,000
Offsetting Securities Loaned [Abstract]
Payables under securities lending transactions, Gross amounts of recognized assets/liabilities	1,097,000
Payables under securities lending transactions, Gross amounts offset in the consolidated balance sheet	(75,000)
Payables under securities lending transactions, Net amounts presented in the consolidated balance sheet	1,022,000
Payables under securities lending transactions, Gross amounts not offset in the consolidated balance sheet, Financial instruments	(990,000)
Payables under securities lending transactions, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged	(5,000)
Payables under securities lending transactions, Net amounts	27,000
Offsetting Obligations To Return Securities Received As Collateral [Abstract]
Obligations to return securities received as collateral, Gross amounts of recognized assets/liabilities	6,826,000
Obligations to return securities received as collateral, Gross amounts offset in the consolidated balance sheet	0
Obligations to return securities received as collateral, Net amounts presented in the consolidated balance sheet	6,826,000
Obligations to return securities received as collateral, Gross amounts not offset in the consolidated balance sheet, Financial instruments	(1,864,000)
Obligations to return securities received as collateral, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged	0
Obligations to return securities received as collateral, Net amounts	4,962,000
Offsetting Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned [Abstract]
Financial liabilities, Gross amounts of recognized assets/liabilities, Total	48,588,000
Financial liabilities, Gross amounts offset in the consolidated balance sheet, Total	(2,066,000)
Financial liabilities, Net amounts presented in the consolidated balance sheet, Total	46,522,000
Financial liabilities, Gross amounts not offset in the consolidated balance sheet, Financial instruments, Total	(35,718,000)
Financial liabilities, Gross amounts not offset in the consolidated balance sheet, Cash collateral received/pledged, Total	(2,315,000)
Financial liabilities, Net amounts, Total	¥ 8,489,000

Repurchase Agreements, and Se_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	Mar. 31, 2022	Mar. 31, 2021
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	¥ 29,717	¥ 26,800
Payables under securities lending transactions	1,097	843
Obligations to return securities received as collateral	6,826	6,582
Total	37,640	34,225
Overnight and open
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	6,703	6,006
Payables under securities lending transactions	972	789
Obligations to return securities received as collateral	5,782	5,607
Total	13,457	12,402
30 days or less
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	17,050	16,888
Payables under securities lending transactions	95	26
Obligations to return securities received as collateral	450	278
Total	17,595	17,192
31 to 90 days
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	3,934	1,973
Payables under securities lending transactions	29	28
Obligations to return securities received as collateral	437	528
Total	4,400	2,529
Over 90 days
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	2,030	1,933
Payables under securities lending transactions	1	0
Obligations to return securities received as collateral	157	169
Total	¥ 2,188	¥ 2,102

Repurchase Agreements, and Se_4

Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings (Secured Borrowing by the Class of Collateral Pledged) (Detail) - JPY (¥) ¥ in Billions	Mar. 31, 2022	Mar. 31, 2021
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	¥ 29,717	¥ 26,800
Payables under securities lending transactions	1,097	843
Obligations to return securities received as collateral	6,826	6,582
Total	37,640	34,225
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	7,486	7,754
Payables under securities lending transactions	359	104
Obligations to return securities received as collateral	4,199	4,022
Total	12,044	11,880
Foreign government and official institution bonds
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	14,116	13,914
Payables under securities lending transactions	11	17
Obligations to return securities received as collateral	1,017	738
Total	15,144	14,669
Corporate bonds
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	745	702
Payables under securities lending transactions	68	1
Obligations to return securities received as collateral	330	214
Total	1,143	917
Residential mortgage-backed securities
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	6,720	3,729
Payables under securities lending transactions	1	0
Obligations to return securities received as collateral	0	0
Total	6,721	3,729
Other debt securities
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	276	218
Payables under securities lending transactions	0	0
Obligations to return securities received as collateral	2	5
Total	278	223
Marketable equity securities
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	360	462
Payables under securities lending transactions	641	721
Obligations to return securities received as collateral	1,278	1,603
Total	2,279	2,786
Other
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	14	21
Payables under securities lending transactions	17	0
Obligations to return securities received as collateral	0	0
Total	¥ 31	¥ 21

Preferred Stock (Narrative) (De

Preferred Stock (Narrative) (Detail)	Mar. 31, 2022 ¥ / shares shares
Class 5 preferred stock
Class of Stock [Line Items]
Stock authorized (in shares) | shares	400,000,000
Liquidation distribution per share | ¥ / shares	¥ 2,500
Class 6 preferred stock
Class of Stock [Line Items]
Stock authorized (in shares) | shares	200,000,000
Liquidation distribution per share | ¥ / shares	¥ 2,500
Class 7 preferred stock
Class of Stock [Line Items]
Stock authorized (in shares) | shares	200,000,000
Liquidation distribution per share | ¥ / shares	¥ 2,500

Common Stock and Capital Surp_3

Common Stock and Capital Surplus (Changes in Number of Issued Shares of Common Stock) (Detail) - Common stock - shares	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Common Stock and Capital Surplus Disclosure [Line Items]
Balance at beginning of fiscal year	13,581,995,120	13,581,995,120	13,667,770,520
Retirement of shares of common stock	(300,000,000)	0	(85,775,400)
Balance at end of fiscal year	13,281,995,120	13,581,995,120	13,581,995,120

Common Stock and Capital Surp_4

Common Stock and Capital Surplus (Narrative) (Detail) - JPY (¥)		1 Months Ended	5 Months Ended
	Nov. 30, 2021	Dec. 23, 2019	Mar. 31, 2022	Nov. 15, 2021	Nov. 13, 2019
Treasury Stock:
Treasury stock %			5%
Minimum
Common Stock and Capital Surplus Disclosure [Line Items]
Percentage of proceeds per issuance of common stock, including conversions of bonds and notes, to be credited to the common stock account			50%
Percentage of outstanding common stock issued as free share distribution prior to April 1, 1991			5%
Maximum
Common Stock and Capital Surplus Disclosure [Line Items]
Percentage of outstanding common stock issued as free share distribution prior to April 1, 1991			10%
Common stock
Treasury Stock:
Number of own shares repurchased (in shares)		85,775,400	225,408,800
Approximate repurchase amount in aggregate of own shares based on the discretionary dealing contract		¥ 50,000,000,000
Approximate percentage of shares allowed for repurchase over total number of outstanding shares					0.77%
Treasury shares value			¥ 149,999,964,992
Treasury shares cancelled (in shares)	300,000,000
Common stock | Maximum
Treasury Stock:
Aggregated number of shares allowed for repurchase (in shares)				300,000,000	100,000,000
Aggregate amount of shares allowed for repurchase				¥ 150,000,000,000	¥ 50,000,000,000
BK and TB | Common stock
Common Stock and Capital Surplus Disclosure [Line Items]
Increase (decrease) by amount equal to the fair value of the shares issued by the application of U.S. accounting practices for issuance of free shares distribution made prior to April 1, 1991			1,910,106,000,000
BK and TB | Unappropriated retained earnings
Common Stock and Capital Surplus Disclosure [Line Items]
Increase (decrease) by amount equal to the fair value of the shares issued by the application of U.S. accounting practices for issuance of free shares distribution made prior to April 1, 1991			¥ 1,910,106,000,000

Retained Earnings, Legal Rese_2

Retained Earnings, Legal Reserve and Dividends (Narrative) (Detail) - JPY (¥)	Mar. 31, 2022	Mar. 31, 2021	Oct. 01, 2005	Apr. 02, 2001
Retained Earnings Appropriated and Transferred [Line Items]
Legal capital surplus	¥ 5,327,772,000,000	¥ 5,533,761,000,000
Common stock and preferred stock issued, Value	2,090,270,000,000	¥ 2,090,270,000,000
Code and Japanese GAAP
Retained Earnings Appropriated and Transferred [Line Items]
Common stock issued, Value				¥ 924,400,000,000
Preferred stock issued, Value				222,100,000,000
Legal capital surplus			¥ 3,577,570,000,000	2,838,693,000,000
Common stock and preferred stock issued, Value			1,383,052,000,000
Retained earnings			¥ 757,458,000,000	¥ 0
Japanese GAAP
Retained Earnings Appropriated and Transferred [Line Items]
MUFG's amount available for dividends	¥ 4,440,891,000,000
Minimum | Banking Law
Retained Earnings Appropriated and Transferred [Line Items]
Percentage of aggregate amount of cash dividends and certain appropriations of retained earnings associated with cash set aside as legal reserve	20%
Minimum | Companies Act
Retained Earnings Appropriated and Transferred [Line Items]
Percentage of aggregate amount of cash dividends and certain appropriations of retained earnings associated with cash set aside as legal reserve	10%
Maximum | Banking Law
Retained Earnings Appropriated and Transferred [Line Items]
Percentage of aggregate amount of legal reserve set aside as an appropriation of retained earnings and the legal capital surplus over stated capital	100%
Percentage of aggregate amount of legal reserve set aside as an appropriation of retained earnings and the legal capital surplus available for dividends over stated capital	100%
Maximum | Companies Act
Retained Earnings Appropriated and Transferred [Line Items]
Percentage of aggregate amount of legal reserve set aside as an appropriation of retained earnings and the legal capital surplus over stated capital	25%
Percentage of aggregate amount of legal reserve set aside as an appropriation of retained earnings and the legal capital surplus available for dividends over stated capital	25%

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	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of fiscal year	¥ 16,244,554	¥ 15,744,516
Net change during the fiscal year	552,485	81,840	¥ (124,155)
Balance at end of fiscal year	16,296,522	16,244,554	15,744,516
Accumulated other comprehensive income (loss), net of taxes:
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of fiscal year	(289,481)	(420,417)	(284,269)
Net change during the fiscal year	516,514	130,902	(136,148)
Balance at end of fiscal year	227,033	(289,481)	(420,417)
Accumulated other comprehensive income (loss), net of taxes: | Revision of Prior Period, Accounting Standards Update, Adjustment | Effect of adopting new guidance on measurement of credit losses on financial instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of fiscal year	34	0
Balance at end of fiscal year	0	34	0
Net unrealized losses (gains) on investment securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of fiscal year	(383,004)	(344,785)	(369,369)
Net change during the fiscal year	(291,226)	(38,253)	24,584
Balance at end of fiscal year	(674,230)	(383,004)	(344,785)
Net unrealized losses (gains) on investment securities | Revision of Prior Period, Accounting Standards Update, Adjustment | Effect of adopting new guidance on measurement of credit losses on financial instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of fiscal year	34	0
Balance at end of fiscal year	0	34	0
Net debt valuation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of fiscal year	(37,862)	45,502	(8,670)
Net change during the fiscal year	23,324	(83,364)	54,172
Balance at end of fiscal year	(14,538)	(37,862)	45,502
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges:
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of fiscal year	19,029	(13,343)	(24,140)
Net change during the fiscal year	(13,060)	32,372	10,797
Balance at end of fiscal year	5,969	19,029	(13,343)
Defined benefit plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of fiscal year	(20,382)	(337,918)	(208,273)
Net change during the fiscal year	49,506	317,536	(129,645)
Balance at end of fiscal year	29,124	(20,382)	(337,918)
Foreign currency translation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of fiscal year	132,738	230,127	326,183
Net change during the fiscal year	747,970	(97,389)	(96,056)
Balance at end of fiscal year	¥ 880,708	¥ 132,738	¥ 230,127

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	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), Tax (expense) or benefit	¥ 33,481	¥ 113,113	¥ (80,205)
Total	552,485	81,840	(124,155)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	516,514	130,902	(136,148)
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	(347,106)	(69,247)	100,974
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	(76,360)	599	2,260
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(270,746)	(69,846)	98,714
Reclassification adjustment, Current Period, before Tax	2,015	383	107,102
Reclassification adjustment, Current Period, Tax (expense) or benefit	11,268	(547)	32,007
Reclassification adjustment, Current Period, Net of Tax	(9,253)	930	75,095
Other Comprehensive Income (Loss), before Tax	(349,121)	(69,630)	(6,128)
Other Comprehensive Income (Loss), Tax (expense) or benefit	(87,628)	1,146	(29,747)
Total	(261,493)	(70,776)	23,619
Net unrealized gains (losses) on investment securities attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	29,733	(32,523)	(965)
Net unrealized gains (losses) on investment securities attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(291,226)	(38,253)	24,584
Net debt valuation adjustments:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	32,735	(126,007)	77,765
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	10,025	(38,584)	23,812
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	22,710	(87,423)	53,953
Reclassification adjustment, Current Period, before Tax	(885)	(5,851)	(315)
Reclassification adjustment, Current Period, Tax (expense) or benefit	(271)	(1,792)	(96)
Reclassification adjustment, Current Period, Net of Tax	(614)	(4,059)	(219)
Other Comprehensive Income (Loss), before Tax	33,620	(120,156)	78,080
Other Comprehensive Income (Loss), Tax (expense) or benefit	10,296	(36,792)	23,908
Total	23,324	(83,364)	54,172
Net debt valuation adjustments attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	0	0	0
Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	23,324	(83,364)	54,172
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(5,542)	44,255	1,375
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	(1,825)	12,359	560
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(3,717)	31,896	815
Reclassification adjustment, Current Period, before Tax	12,200	(164)	(13,279)
Reclassification adjustment, Current Period, Tax (expense) or benefit	3,143	115	(3,452)
Reclassification adjustment, Current Period, Net of Tax	9,057	(279)	(9,827)
Other Comprehensive Income (Loss), before Tax	(17,742)	44,419	14,654
Other Comprehensive Income (Loss), Tax (expense) or benefit	(4,968)	12,244	4,012
Total	(12,774)	32,175	10,642
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	286	(197)	(155)
Net unrealized gains (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	(13,060)	32,372	10,797
Defined benefit plans:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	62,946	436,435	(195,851)
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	17,350	133,404	(59,426)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	45,596	303,031	(136,425)
Reclassification adjustment, Current Period, before Tax	(7,042)	(22,504)	(6,643)
Reclassification adjustment, Current Period, Tax (expense) or benefit	(1,689)	(6,479)	(1,741)
Reclassification adjustment, Current Period, Net of Tax	(5,353)	(16,025)	(4,902)
Other Comprehensive Income (Loss), before Tax	69,988	458,939	(189,208)
Other Comprehensive Income (Loss), Tax (expense) or benefit	19,039	139,883	(57,685)
Total	50,949	319,056	(131,523)
Defined benefit plans attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	1,443	1,520	(1,878)
Defined benefit plans attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	49,506	317,536	(129,645)
Foreign currency translation adjustments:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax	853,517	(61,085)	(99,520)
Other Comprehensive Income (Loss) before Reclassifications, Tax (expense) or benefit	98,059	14,370	(19,588)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	755,458	(75,455)	(79,932)
Reclassification adjustment, Current Period, before Tax	4,296	57,534	2,238
Reclassification adjustment, Current Period, Tax (expense) or benefit	1,317	17,738	1,105
Reclassification adjustment, Current Period, Net of Tax	2,979	39,796	1,133
Other Comprehensive Income (Loss), before Tax	849,221	(118,619)	(101,758)
Other Comprehensive Income (Loss), Tax (expense) or benefit	96,742	(3,368)	(20,693)
Total	752,479	(115,251)	(81,065)
Foreign currency translation adjustments attributable to noncontrolling interests
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	4,509	(17,862)	14,991
Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	¥ 747,970	¥ (97,389)	¥ (96,056)

Accumulated Other Comprehensi_5

Accumulated Other Comprehensive Income (Loss) (Reclassification of Significant Items out of Accumulated OCI) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains (losses)—net	¥ 119,026	¥ (1,458,264)	¥ 532,248
Total before tax	(58,727)	1,608,342	433,220
Income tax expense (benefit)	(14,511)	444,948	114,505
Net income (loss) before attribution of noncontrolling interests	(44,216)	1,163,394	318,715
Equity in earnings of equity method investees—net or Other non-interest income	(436,583)	(355,730)	(282,712)
Interest income on Loans, including fees	(1,731,962)	(1,940,754)	(2,597,932)
Other non-interest expenses	(264,477)	(322,171)	(367,721)
Other non-interest income	(119,321)	(109,615)	(88,422)
Amount reclassified out of Accumulated OCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	10,584	29,398	89,103
Income tax expense (benefit)	13,768	9,035	27,823
Net income (loss) before attribution of noncontrolling interests	(3,184)	20,363	61,280
Amount reclassified out of Accumulated OCI | Net losses (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	(48,637)	6,410	(108,193)
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	47,069	6	1,590
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	(447)	(6,799)	(499)
Total before tax	2,015	383	107,102
Income tax expense (benefit)	11,268	(547)	32,007
Net income (loss) before attribution of noncontrolling interests	(9,253)	930	75,095
Amount reclassified out of Accumulated OCI | Net debt valuation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(885)	(5,851)	(315)
Income tax expense (benefit)	(271)	(1,792)	(96)
Net income (loss) before attribution of noncontrolling interests	(614)	(4,059)	(219)
Equity in earnings of equity method investees—net or Other non-interest income	885	5,851	315
Amount reclassified out of Accumulated OCI | Net unrealized gains (losses) on derivatives qualifying for cash flow hedges:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	12,200	(164)	(13,279)
Income tax expense (benefit)	3,143	115	(3,452)
Net income (loss) before attribution of noncontrolling interests	9,057	(279)	(9,827)
Amount reclassified out of Accumulated OCI | Net unrealized gains (losses) 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	(12,017)	(3,579)	9,878
Amount reclassified out of Accumulated OCI | Net unrealized gains (losses) 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 losses—net	(183)	3,743	3,399
Amount reclassified out of Accumulated OCI | Other
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Gains Losses	0	0	2
Amount reclassified out of Accumulated OCI | Net actuarial loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	17,279	28,787	15,488
Amount reclassified out of Accumulated OCI | Prior service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	(4,467)	(4,267)	(5,718)
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	(5,770)	(2,016)	(3,127)
Amount reclassified out of Accumulated OCI | Defined benefit plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(7,042)	(22,504)	(6,643)
Income tax expense (benefit)	(1,689)	(6,479)	(1,741)
Net income (loss) before attribution of noncontrolling interests	(5,353)	(16,025)	(4,902)
Amount reclassified out of Accumulated OCI | Foreign currency translation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	4,296	57,534	2,238
Income tax expense (benefit)	1,317	17,738	1,105
Net income (loss) before attribution of noncontrolling interests	2,979	39,796	1,133
Other non-interest expenses	7	27	2,765
Other non-interest income	¥ (4,303)	¥ (57,561)	¥ (5,003)

Regulatory Capital Requiremen_3

Regulatory Capital Requirements (Narrative) (Detail) ¥ in Millions	12 Months Ended
	Mar. 31, 2022 JPY (¥) guideline Approach capitalRatio	Dec. 31, 2021	Mar. 31, 2021 JPY (¥)	Dec. 31, 2020	Dec. 31, 2019
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Number of methodologies/guidelines | guideline	2
Number of regulatory capital ratios | capitalRatio	3
Basel III
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Number of approaches | Approach	3
Risk weighted threshold of items not deducted from Common Equity Tier 1 capital	250%
FSA's requirements applicable to Japanese banking institutions
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum Common Equity Tier 1 capital ratio	0.0450		0.0450
Capital conservation buffer	2.50%		2.50%
G-SIB surcharge	1.50%		1.50%
Countercyclical buffer	0.01%		0%
Tier 1 leverage ratio	0.03
Percentage of G-SIB leverage ratio buffer to G-SIB capital surcharge, effective on January 1, 2022	50%
Basel III for Security Companies in Japan
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum capital ratio required for financial Instruments firms to maintain by Financial Instruments and Exchange Act and related ordinance	120%
Minimum capital ratio requirement for financial instruments firms which will call for regulatory reporting	140%
Minimum capital ratio requirement for financial instrument firms which may lead to a suspension of all or part of the business for a period of time and cancellation of a registration	100%
Basel III for Security Companies in Japan | Stand-alone, Mitsubishi UFJ Morgan Stanley Securities
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Amount of capital accounts less certain fixed assets | ¥	¥ 486,756		¥ 475,343
Percentage of capital accounts to the total amounts equivalent to market, counterparty credit and operational risks	317.10%		275.40%
U.S. Basel III
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum Common Equity Tier 1 capital ratio	0.045
Capital conservation buffer	2.50%
Countercyclical buffer	2.50%
Tier 1 leverage ratio	0.04
Total minimum Common Equity Tier 1 capital ratio	7%
Tier 1 supplementary leverage ratio	0.03
Phase-in period to eliminate the accumulated OCI or loss exclusion applied under Basel I and Basel II rules	4 years
Capital conservation buffer phase-in arrangements	0.625%
Phase-in period for full implementation of capital conservation buffer	4 years
U.S. Basel III | BK (US)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum total risk-based capital ratio to be categorized as "well capitalized"		0.10		0.10
Tier 1 risk-based capital ratio to be categorized as "well capitalized"				0.08	0.08
Tier 1 capital to quarterly average assets to be categorized as "well capitalized"		0.05		0.05
Common Equity Tier 1 risk-based capital ratio to be categorized as "well capitalized"		0.065		0.065

Regulatory Capital Requiremen_4

Regulatory Capital Requirements (Risk-adjusted Capital Amounts and Ratios, Japan) (Detail) ¥ in Millions	Mar. 31, 2022 JPY (¥)	Mar. 31, 2021 JPY (¥)
Consolidated, MUFG
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets): Actual amount	¥ 17,858,656	¥ 18,669,510
Total capital (to risk-weighted assets): Actual ratio	0.1429	0.1631
Tier 1 capital (to risk-weighted assets): Actual amount	¥ 15,476,287	¥ 15,982,746
Tier 1 capital (to risk-weighted assets): Actual ratio	0.1238	0.1396
Common Equity Tier 1 capital (to risk-weighted assets): Actual amount	¥ 13,823,912	¥ 14,113,722
Common Equity Tier 1 capital (to risk-weighted assets): Actual ratio	0.1106	0.1233
Leverage Ratio: Actual amount	¥ 15,476,287	¥ 15,982,746
Leverage Ratio: Actual ratio	0.0514	0.0545
Total capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 15,002,201	¥ 13,730,324
Total capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.1201	0.1200
Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 12,503,916	¥ 11,441,937
Tier 1 capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.1001	0.1000
Common Equity Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 10,630,203	¥ 9,725,646
Common Equity Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0851	0.0850
Leverage Ratio: Amount for capital adequacy purposes	¥ 9,023,770	¥ 8,781,753
Tier 1 capital (to quarterly average assets): Ratio for minimum capital ratios required	0.0300	0.0300
Consolidated, MUFG | FSA's requirements applicable to Japanese banking institutions
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0450	0.0450
Capital conservation buffer	2.50%	2.50%
G-SIB surcharge	1.50%	1.50%
Consolidated, BK
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets): Actual amount	¥ 14,076,877	¥ 14,630,443
Total capital (to risk-weighted assets): Actual ratio	0.1294	0.1504
Tier 1 capital (to risk-weighted assets): Actual amount	¥ 12,092,189	¥ 12,411,352
Tier 1 capital (to risk-weighted assets): Actual ratio	0.1111	0.1276
Common Equity Tier 1 capital (to risk-weighted assets): Actual amount	¥ 10,728,587	¥ 10,865,302
Common Equity Tier 1 capital (to risk-weighted assets): Actual ratio	0.0986	0.1117
Leverage Ratio: Actual amount	¥ 12,092,189	¥ 12,411,352
Leverage Ratio: Actual ratio	0.0496	0.0522
Total capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 8,700,226	¥ 7,779,147
Total capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.0800	0.0800
Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 6,525,170	¥ 5,834,360
Tier 1 capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.0600	0.0600
Common Equity Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 4,893,877	¥ 4,375,770
Common Equity Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0450	0.0450
Leverage Ratio: Amount for capital adequacy purposes	¥ 7,312,672	¥ 7,123,396
Tier 1 capital (to quarterly average assets): Ratio for minimum capital ratios required	0.0300	0.0300
Consolidated, TB
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets): Actual amount	¥ 1,969,282	¥ 2,099,662
Total capital (to risk-weighted assets): Actual ratio	0.2078	0.2247
Tier 1 capital (to risk-weighted assets): Actual amount	¥ 1,803,306	¥ 1,870,988
Tier 1 capital (to risk-weighted assets): Actual ratio	0.1903	0.2002
Common Equity Tier 1 capital (to risk-weighted assets): Actual amount	¥ 1,640,458	¥ 1,681,140
Common Equity Tier 1 capital (to risk-weighted assets): Actual ratio	0.1731	0.1799
Leverage Ratio: Actual amount	¥ 1,803,306	¥ 1,870,988
Leverage Ratio: Actual ratio	0.0677	0.0753
Total capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 758,073	¥ 747,524
Total capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.0800	0.0800
Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 568,555	¥ 560,643
Tier 1 capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.0600	0.0600
Common Equity Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 426,416	¥ 420,482
Common Equity Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0450	0.0450
Leverage Ratio: Amount for capital adequacy purposes	¥ 798,855	¥ 744,744
Tier 1 capital (to quarterly average assets): Ratio for minimum capital ratios required	0.0300	0.0300
Stand-alone, BK
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets): Actual amount	¥ 11,167,553	¥ 12,359,493
Total capital (to risk-weighted assets): Actual ratio	0.1191	0.1460
Tier 1 capital (to risk-weighted assets): Actual amount	¥ 9,565,792	¥ 10,512,405
Tier 1 capital (to risk-weighted assets): Actual ratio	0.1020	0.1242
Common Equity Tier 1 capital (to risk-weighted assets): Actual amount	¥ 8,261,659	¥ 9,025,272
Common Equity Tier 1 capital (to risk-weighted assets): Actual ratio	0.0881	0.1066
Leverage Ratio: Actual amount	¥ 9,565,792	¥ 10,512,405
Leverage Ratio: Actual ratio	0.0459	0.0514
Total capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 7,498,348	¥ 6,770,631
Total capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.0800	0.0800
Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 5,623,761	¥ 5,077,974
Tier 1 capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.0600	0.0600
Common Equity Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 4,217,821	¥ 3,808,480
Common Equity Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0450	0.0450
Leverage Ratio: Amount for capital adequacy purposes	¥ 6,249,606	¥ 6,127,521
Tier 1 capital (to quarterly average assets): Ratio for minimum capital ratios required	0.0300	0.0300
Stand-alone, TB
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets): Actual amount	¥ 2,122,840	¥ 2,294,694
Total capital (to risk-weighted assets): Actual ratio	0.1997	0.2191
Tier 1 capital (to risk-weighted assets): Actual amount	¥ 1,957,340	¥ 2,066,480
Tier 1 capital (to risk-weighted assets): Actual ratio	0.1842	0.1973
Common Equity Tier 1 capital (to risk-weighted assets): Actual amount	¥ 1,794,840	¥ 1,876,980
Common Equity Tier 1 capital (to risk-weighted assets): Actual ratio	0.1689	0.1792
Leverage Ratio: Actual amount	¥ 1,957,340	¥ 2,066,480
Leverage Ratio: Actual ratio	0.0781	0.0895
Total capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 850,030	¥ 837,567
Total capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.0800	0.0800
Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 637,523	¥ 628,176
Tier 1 capital (to risk-weighted assets): Ratio for capital adequacy purposes	0.0600	0.0600
Common Equity Tier 1 capital (to risk-weighted assets): Amount for capital adequacy purposes	¥ 478,142	¥ 471,132
Common Equity Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0450	0.0450
Leverage Ratio: Amount for capital adequacy purposes	¥ 751,302	¥ 691,914
Tier 1 capital (to quarterly average assets): Ratio for minimum capital ratios required	0.0300	0.0300

Regulatory Capital Requiremen_5

Regulatory Capital Requirements (Risk-adjusted Capital Amounts and Ratios, United States of America, MUAH) (Detail) - U.S. Basel III $ in Millions	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jan. 01, 2019
BK (US)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets): Actual amount	$ 16,265	$ 15,629
Tier 1 capital (to risk-weighted assets): Actual amount	15,629	14,634
Tier 1 capital (to quarterly average assets): Actual amount	15,629	14,634
Common Equity Tier 1 capital (to risk-weighted assets): Actual amount	$ 15,629	$ 14,634
Total capital (to risk-weighted assets): Actual ratio	0.1736	0.1668
Tier 1 capital (to risk-weighted assets): Actual ratio	0.1668	0.1562
Tier 1 capital (to quarterly average assets): Actual ratio	0.1214	0.1112
Common Equity Tier 1 capital (to risk-weighted assets): Actual ratio	0.1668	0.1562
Total capital (to risk-weighted assets): Amount for minimum capital ratios required	$ 9,840	$ 9,836
Tier 1 capital (to risk-weighted assets): Amount for minimum capital ratios required	7,966	7,963
Tier 1 capital (to quarterly average assets): Amount for minimum capital ratios required	5,149	5,262
Common Equity Tier 1 capital (to risk-weighted assets): Amount for minimum capital ratios required	$ 6,560	$ 6,557
Total capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.1050	0.1050
Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0850	0.0850
Tier 1 capital (to quarterly average assets): Ratio for minimum capital ratios required	0.0400	0.0400
Common Equity Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0700	0.0700
Total capital (to risk-weighted assets): Amount OCC requires to be "well capitalized"	$ 9,371	$ 9,368
Tier 1 capital (to risk-weighted assets): Amount OCC requires to be "well capitalized"	7,497	7,494
Tier 1 capital (to quarterly average assets): Amount OCC requires to be "well capitalized"	6,436	6,577
Common Equity Tier 1 capital (to risk-weighted assets): Amount OCC requires to be "well capitalized"	$ 6,091	$ 6,089
Total capital (to risk-weighted assets): Ratios OCC requires to be "well capitalized"	0.1000	0.1000
Tier 1 capital (to risk-weighted assets): Ratios OCC requires to be "well capitalized"	0.0800	0.0800
Tier 1 capital (to quarterly average assets): Ratios OCC requires to be "well capitalized"	0.0500	0.0500
Common Equity Tier 1 capital (to risk-weighted assets): Ratios OCC requires to be "well capitalized"	0.0650	0.0650
Capital conservation buffer			2.50%
MUAH
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets): Actual amount	$ 17,177	$ 16,871
Tier 1 capital (to risk-weighted assets): Actual amount	16,843	15,823
Tier 1 capital (to quarterly average assets): Actual amount	16,843	15,823
Common Equity Tier 1 capital (to risk-weighted assets): Actual amount	$ 16,843	$ 15,823
Total capital (to risk-weighted assets): Actual ratio	0.1632	0.1629
Tier 1 capital (to risk-weighted assets): Actual ratio	0.1601	0.1528
Tier 1 capital (to quarterly average assets): Actual ratio	0.1044	0.0956
Common Equity Tier 1 capital (to risk-weighted assets): Actual ratio	0.1601	0.1528
Total capital (to risk-weighted assets): Amount for minimum capital ratios required	$ 11,890	$ 12,843
Tier 1 capital (to risk-weighted assets): Amount for minimum capital ratios required	9,786	10,772
Tier 1 capital (to quarterly average assets): Amount for minimum capital ratios required	6,453	6,623
Common Equity Tier 1 capital (to risk-weighted assets): Amount for minimum capital ratios required	$ 8,208	$ 9,218
Total capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.1130	0.1240
Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0930	0.1040
Tier 1 capital (to quarterly average assets): Ratio for minimum capital ratios required	0.0400	0.0400
Common Equity Tier 1 capital (to risk-weighted assets): Ratio for minimum capital ratios required	0.0780	0.0890
Capital conservation buffer	3.30%	4.40%

Earnings (Loss) Per Common Sh_3

Earnings (Loss) Per Common Share Applicable to Common Shareholders of MUFG (Reconciliations of Net Income and Weighted Average Number of Common Shares Outstanding Used for Computation of Basic EPS to Adjusted Amounts for Computation of Diluted EPS) (Detail) - JPY (¥) ¥ / shares in Units, shares in Thousands, ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Income (loss) (Numerator):
Net income (loss) attributable to Mitsubishi UFJ Financial Group	¥ (83,320)	¥ 1,117,298	¥ 305,955
Effect of dilutive instruments:
Stock acquisition rights and restricted stock units—Morgan Stanley	(5,361)	(4,159)	(2,861)
Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions	¥ (88,681)	¥ 1,113,139	¥ 303,094
Shares (Denominator):
Weighted average common shares outstanding (in shares)	12,798,060	12,859,737	12,912,790
Effect of dilutive instruments:
Stock acquisition rights and the common shares of MUFG under the Board Incentive Plan (in shares)	0	0	166
Weighted average common shares for diluted computation (in shares)	12,798,060	12,859,737	12,912,956
Basic earnings (loss) per common share:
Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)	¥ (6.51)	¥ 86.88	¥ 23.69
Diluted earnings (loss) per common share:
Earnings (loss) applicable to common shareholders of Mitsubishi UFJ Financial Group (in JPY per share)	¥ (6.93)	¥ 86.56	¥ 23.47

Derivative Financial Instrume_3

Derivative Financial Instruments (Notional Amounts of Derivative Contracts) (Detail) - JPY (¥) ¥ in Trillions	Mar. 31, 2022	Mar. 31, 2021
Derivative [Line Items]
Total	¥ 1,657.3	¥ 1,551.8
Interest rate contracts
Derivative [Line Items]
Total	1,391.8	1,308.4
Foreign exchange contracts
Derivative [Line Items]
Total	245	222
Equity contracts
Derivative [Line Items]
Total	7.4	8
Commodity contracts
Derivative [Line Items]
Total	0.1	0.1
Credit derivatives
Derivative [Line Items]
Total	9.8	9.8
Other
Derivative [Line Items]
Total	¥ 3.2	¥ 3.5

Derivative Financial Instrume_4

Derivative Financial Instruments (Fair Value Information on Derivative Instruments Recorded on Consolidated Balance Sheets) (Detail) - JPY (¥) ¥ in Billions	Mar. 31, 2022	Mar. 31, 2021
Derivatives, Fair Value [Line Items]
Total derivative assets	¥ 10,534	¥ 11,997
Total derivative liabilities	10,895	11,714
Interest rate contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	5,445	7,718
Total derivative liabilities	5,652	7,361
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	4,803	3,910
Total derivative liabilities	4,908	4,027
Equity contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	151	231
Total derivative liabilities	277	237
Commodity contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	22	27
Total derivative liabilities	22	27
Credit derivatives
Derivatives, Fair Value [Line Items]
Total derivative assets	103	94
Total derivative liabilities	101	109
Other
Derivatives, Fair Value [Line Items]
Total derivative assets	10	17
Total derivative liabilities	(65)	(47)
Not designated as hedges
Derivatives, Fair Value [Line Items]
Total derivative assets	10,532	11,997
Total derivative liabilities	10,894	11,709
Not designated as hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	5,445	7,718
Total derivative liabilities	5,652	7,361
Not designated as hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	4,801	3,910
Total derivative liabilities	4,907	4,022
Not designated as hedges | Equity contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	151	231
Total derivative liabilities	277	237
Not designated as hedges | Commodity contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	22	27
Total derivative liabilities	22	27
Not designated as hedges | Credit derivatives
Derivatives, Fair Value [Line Items]
Total derivative assets	103	94
Total derivative liabilities	101	109
Not designated as hedges | Other
Derivatives, Fair Value [Line Items]
Total derivative assets	10	17
Total derivative liabilities	(65)	(47)
Designated as hedges
Derivatives, Fair Value [Line Items]
Total derivative assets	2	0
Total derivative liabilities	1	5
Designated as hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	0	0
Total derivative liabilities	0	0
Designated as hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	2	0
Total derivative liabilities	1	5
Designated as hedges | Equity contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	0	0
Total derivative liabilities	0	0
Designated as hedges | Commodity contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	0	0
Total derivative liabilities	0	0
Designated as hedges | Credit derivatives
Derivatives, Fair Value [Line Items]
Total derivative assets	0	0
Total derivative liabilities	0	0
Designated as hedges | Other
Derivatives, Fair Value [Line Items]
Total derivative assets	0	0
Total derivative liabilities	¥ 0	¥ 0

Derivative Financial Instrume_5

Derivative Financial Instruments (Gains and Losses for Trading and Risk Management Derivatives (Not Designated as Hedging Instruments)) (Detail) - JPY (¥) ¥ in Billions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Total	¥ (147)	¥ (510)	¥ (593)
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	51	70	(173)
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	(39)	(91)	(429)
Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	(98)	(269)	30
Credit derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Total	(34)	(53)	15
Other
Derivative Instruments, Gain (Loss) [Line Items]
Total	(27)	(167)	(36)
Foreign exchange gains (losses)—net
Derivative Instruments, Gain (Loss) [Line Items]
Total	(45)	(80)	(434)
Foreign exchange gains (losses)—net | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	0	0	0
Foreign exchange gains (losses)—net | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	(39)	(91)	(429)
Foreign exchange gains (losses)—net | Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	0	0	0
Foreign exchange gains (losses)—net | Credit derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Total	0	0	0
Foreign exchange gains (losses)—net | Other
Derivative Instruments, Gain (Loss) [Line Items]
Total	(6)	11	(5)
Trading account profits (losses)—net
Derivative Instruments, Gain (Loss) [Line Items]
Total	(102)	(430)	(159)
Trading account profits (losses)—net | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	51	70	(173)
Trading account profits (losses)—net | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	0	0	0
Trading account profits (losses)—net | Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	(98)	(269)	30
Trading account profits (losses)—net | Credit derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Total	(34)	(53)	15
Trading account profits (losses)—net | Other
Derivative Instruments, Gain (Loss) [Line Items]
Total	¥ (21)	¥ (178)	¥ (31)

Derivative Financial Instrume_6

Derivative Financial Instruments (Protection Sold Through Credit Default Swaps) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	¥ 643,285	¥ 517,053
Maximum potential/Notional amount, Expiring in 1-5 years	2,982,687	3,130,734
Maximum potential/Notional amount, Expiring over 5 years	836,239	805,026
Maximum potential/Notional amount, Total	4,462,211	4,452,813
Credit derivative (asset) liability at fair value	(72,915)	(69,286)
Protection sold
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	643,285	517,053
Maximum potential/Notional amount, Expiring in 1-5 years	2,982,687	3,114,128
Maximum potential/Notional amount, Expiring over 5 years	836,239	805,026
Maximum potential/Notional amount, Total	4,462,211	4,436,207
Credit derivative (asset) liability at fair value	(72,915)	(69,343)
Protection sold | Single name credit default swaps:
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	499,442	379,092
Maximum potential/Notional amount, Expiring in 1-5 years	2,224,643	2,548,775
Maximum potential/Notional amount, Expiring over 5 years	798,398	775,041
Maximum potential/Notional amount, Total	3,522,483	3,702,908
Credit derivative (asset) liability at fair value	(55,930)	(62,506)
Protection sold | Single name credit default swaps: | Investment grade
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	408,281	294,312
Maximum potential/Notional amount, Expiring in 1-5 years	1,874,796	2,235,390
Maximum potential/Notional amount, Expiring over 5 years	731,946	715,896
Maximum potential/Notional amount, Total	3,015,023	3,245,598
Credit derivative (asset) liability at fair value	(61,308)	(67,707)
Protection sold | Single name credit default swaps: | Non-investment grade
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	91,161	84,780
Maximum potential/Notional amount, Expiring in 1-5 years	349,847	311,702
Maximum potential/Notional amount, Expiring over 5 years	66,452	59,145
Maximum potential/Notional amount, Total	507,460	455,627
Credit derivative (asset) liability at fair value	5,378	5,284
Protection sold | Single name credit default swaps: | Not rated
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	0	0
Maximum potential/Notional amount, Expiring in 1-5 years	0	1,683
Maximum potential/Notional amount, Expiring over 5 years	0	0
Maximum potential/Notional amount, Total	0	1,683
Credit derivative (asset) liability at fair value	0	(83)
Protection sold | Index and basket credit default swaps:
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	143,843	137,961
Maximum potential/Notional amount, Expiring in 1-5 years	758,044	565,353
Maximum potential/Notional amount, Expiring over 5 years	37,841	29,985
Maximum potential/Notional amount, Total	939,728	733,299
Credit derivative (asset) liability at fair value	(16,985)	(6,837)
Protection sold | Index and basket credit default swaps: | Investment grade
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	67,600	43,000
Maximum potential/Notional amount, Expiring in 1-5 years	458,153	470,063
Maximum potential/Notional amount, Expiring over 5 years	36,955	29,133
Maximum potential/Notional amount, Total	562,708	542,196
Credit derivative (asset) liability at fair value	(9,604)	(4,753)
Protection sold | Index and basket credit default swaps: | Non-investment grade
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	56,299	35,427
Maximum potential/Notional amount, Expiring in 1-5 years	19,936	65,319
Maximum potential/Notional amount, Expiring over 5 years	0	0
Maximum potential/Notional amount, Total	76,235	100,746
Credit derivative (asset) liability at fair value	(61)	(1,165)
Protection sold | Index and basket credit default swaps: | Not rated
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	19,944	59,534
Maximum potential/Notional amount, Expiring in 1-5 years	279,955	29,971
Maximum potential/Notional amount, Expiring over 5 years	886	852
Maximum potential/Notional amount, Total	300,785	90,357
Credit derivative (asset) liability at fair value	(7,320)	(919)
Other credit derivatives sold | Investment grade
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	0	0
Maximum potential/Notional amount, Expiring in 1-5 years	0	16,606
Maximum potential/Notional amount, Expiring over 5 years	0	0
Maximum potential/Notional amount, Total	0	16,606
Credit derivative (asset) liability at fair value	¥ 0	¥ 57

Derivative Financial Instrume_7

Derivative Financial Instruments (Narrative) (Detail) - JPY (¥) ¥ in Billions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Carrying value of credit protection, offsetting with purchased protection with identical underlying referenced entities, in approximate	¥ 70	¥ 66
Notional amounts of credit protection, offsetting with purchased protection with identical underlying referenced entities, in approximate	4,083	4,097
Aggregate fair value of derivative instruments with credit-risk-related contingent features in a liability position, in approximate	500	700
Aggregate fair value of derivative instruments with credit-risk-related contingent features in a liability position, posted collateral, in approximate	349	227
Additional collateral amount which could be requested if the MUFG Group's debt falls below investment grade	53	63
Early termination amount which could be requested if the MUFG Group's debt falls below investment grade	¥ 60	¥ 92

Obligations under Guarantees _3

Obligations under Guarantees and Other Off-balance Sheet Instruments (Narrative) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Guarantor Obligations [Line Items]
Amount of Obligations under Guarantees	¥ 60,874,000	¥ 56,443,000
Contractual maturities of guarantees mainly comprised of guarantees of housing loans, in years	5 years
Carrying amounts of the liabilities related to guarantees and similar instruments	¥ 814,734	857,862
Allowance for off-balance sheet instruments	¥ 51,852	27,688
Lending-related commitments which expire within one year, in approximate percentage	65%
Lending-related commitments which expire from one year to five years, in approximate percentage	32%
Lending-related commitments which expire after five years, in approximate percentage	3%
Portion syndicated out to third parties
Guarantor Obligations [Line Items]
Amount of Obligations under Guarantees	¥ 646,100	499,000
Options sold
Guarantor Obligations [Line Items]
Amount of Obligations under Guarantees	¥ 769,376	¥ 819,739

Obligations under Guarantees _4

Obligations under Guarantees and Other Off-balance Sheet Instruments (Contractual or Notional Amounts of Guarantees with Amount by Expiration Period) (Detail) - JPY (¥) ¥ in Billions	Mar. 31, 2022	Mar. 31, 2021
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Total	¥ 60,874	¥ 56,443
Maximum potential / Contractual or Notional amount, Expiring in 1 year or less	27,629	26,696
Maximum potential / Contractual or Notional amount, Expiring in 1-5 years	19,396	17,309
Maximum potential / Contractual or Notional amount, Expiring in Over 5 years	13,849	12,438
Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Total	4,731	4,055
Maximum potential / Contractual or Notional amount, Expiring in 1 year or less	3,733	3,174
Maximum potential / Contractual or Notional amount, Expiring in 1-5 years	784	698
Maximum potential / Contractual or Notional amount, Expiring in Over 5 years	214	183
Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Total	3,828	3,193
Maximum potential / Contractual or Notional amount, Expiring in 1 year or less	2,807	2,315
Maximum potential / Contractual or Notional amount, Expiring in 1-5 years	887	755
Maximum potential / Contractual or Notional amount, Expiring in Over 5 years	134	123
Derivative instruments
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Total	39,982	38,499
Maximum potential / Contractual or Notional amount, Expiring in 1 year or less	14,670	15,534
Maximum potential / Contractual or Notional amount, Expiring in 1-5 years	16,988	15,104
Maximum potential / Contractual or Notional amount, Expiring in Over 5 years	8,324	7,861
Liabilities of trust accounts
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Total	12,262	10,656
Maximum potential / Contractual or Notional amount, Expiring in 1 year or less	6,413	5,667
Maximum potential / Contractual or Notional amount, Expiring in 1-5 years	672	718
Maximum potential / Contractual or Notional amount, Expiring in Over 5 years	5,177	4,271
Other
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Total	71	40
Maximum potential / Contractual or Notional amount, Expiring in 1 year or less	6	6
Maximum potential / Contractual or Notional amount, Expiring in 1-5 years	65	34
Maximum potential / Contractual or Notional amount, Expiring in Over 5 years	¥ 0	¥ 0

Obligations under Guarantees _5

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	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	¥ 60,874	¥ 56,443
Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	4,731	4,055
Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	3,828	3,193
Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	8,559	7,248
Normal | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	4,575	3,929
Normal | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	3,706	3,092
Normal | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	¥ 8,281	7,021
Close Watch | Minimum
Guarantor Obligations [Line Items]
Accruing loans contractually past due, in day	90 days
Close Watch | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	¥ 121	108
Close Watch | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	73	70
Close Watch | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	194	178
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	31	15
Likely to become Bankrupt or Legally/Virtually Bankrupt | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	22	3
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	53	18
Not rated | Standby letters of credit and financial guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	4	3
Not rated | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	27	28
Not rated | Standby letters of credit, financial and performance guarantees
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	¥ 31	¥ 31

Obligations under Guarantees _6

Obligations under Guarantees and Other Off-balance Sheet Instruments (Contractual Amounts with Regard to Other Off-balance Sheet Instruments) (Detail) - JPY (¥) ¥ in Billions	Mar. 31, 2022	Mar. 31, 2021
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	¥ 82,886	¥ 84,614
Commercial letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	908	835
Commitments to make investments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	¥ 478	¥ 281

Variable Interest Entities (Ass

Variable Interest Entities (Assets and Liabilities of Consolidated Variable Interest Entities) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Variable Interest Entity [Line Items]
Total assets	¥ 367,650,018	¥ 353,824,625	¥ 331,753,283
Cash and due from banks	50,972,491	49,977,480
Interest-earning deposits in other banks	58,848,056	53,346,721
Trading account assets	42,668,336	44,444,379
Investment securities	55,815,751	57,244,496
Loans	111,678,692	114,370,472
Total liabilities	351,353,496	337,580,071
Deposits	224,589,943	229,206,936
Long-term debt	34,696,599	35,157,651
Consolidated VIEs
Variable Interest Entity [Line Items]
Total assets	18,958,567	18,128,416
Cash and due from banks	6,728	2,698
Interest-earning deposits in other banks	27,382	30,422
Trading account assets	1,252,308	959,001
Investment securities	1,824,892	1,727,292
Loans	15,651,462	15,247,928
All other assets	195,795	161,075
Total liabilities	584,032	594,819
Deposits	0	0
Other short-term borrowings	39,582	33,599
Long-term debt	449,231	457,763
Consolidated liabilities, All other liabilities	95,219	103,457
Consolidated VIEs | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Total assets	18,958,567
Cash and due from banks	6,728
Interest-earning deposits in other banks	27,382
Trading account assets	1,252,308
Investment securities	1,824,892
Loans	15,651,462
All other assets	195,795
Consolidated VIEs | Total consolidated assets before elimination
Variable Interest Entity [Line Items]
Total assets		26,249,510
Cash and due from banks		112,941
Interest-earning deposits in other banks		62,112
Trading account assets		964,893
Investment securities		2,246,853
Loans		22,678,094
All other assets		184,617
Total liabilities	25,782,756	25,821,760
Deposits	7,063,850	7,826,959
Other short-term borrowings	5,152,061	4,114,024
Long-term debt	11,830,663	11,605,353
Consolidated liabilities, All other liabilities	1,736,182	2,275,424
Consolidated VIEs | Total consolidated assets before elimination | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Total assets	26,382,625
Cash and due from banks	122,214
Interest-earning deposits in other banks	63,557
Trading account assets	1,306,671
Investment securities	2,392,134
Loans	22,270,506
All other assets	227,543
Consolidated VIEs | Total consolidated assets before elimination | Asset-backed conduits
Variable Interest Entity [Line Items]
Total assets	6,115,286	5,986,887
Cash and due from banks		109,439
Interest-earning deposits in other banks		40,061
Trading account assets		5,433
Investment securities		1,015,434
Loans		4,800,221
All other assets		16,299
Total liabilities	6,091,830	5,989,188
Deposits	0	0
Other short-term borrowings	4,443,656	4,058,248
Long-term debt	1,337,938	1,461,043
Consolidated liabilities, All other liabilities	310,236	469,897
Consolidated VIEs | Total consolidated assets before elimination | Asset-backed conduits | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Cash and due from banks	114,679
Interest-earning deposits in other banks	24,959
Trading account assets	30,114
Investment securities	906,109
Loans	5,016,254
All other assets	23,171
Consolidated VIEs | Total consolidated assets before elimination | Investment funds
Variable Interest Entity [Line Items]
Total assets		374,324
Cash and due from banks		0
Interest-earning deposits in other banks		15,171
Trading account assets		240,327
Investment securities		41,512
Loans		0
All other assets		77,314
Total liabilities	29,368	15,039
Deposits	0	0
Other short-term borrowings	0	0
Long-term debt	6,497	5,831
Consolidated liabilities, All other liabilities	22,871	9,208
Consolidated VIEs | Total consolidated assets before elimination | Investment funds | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Total assets	538,336
Cash and due from banks	578
Interest-earning deposits in other banks	28,021
Trading account assets	351,806
Investment securities	55,567
Loans	0
All other assets	102,364
Consolidated VIEs | Total consolidated assets before elimination | Special purpose entities created for structured financing
Variable Interest Entity [Line Items]
Total assets		175,630
Cash and due from banks		0
Interest-earning deposits in other banks		2,058
Trading account assets		4,645
Investment securities		0
Loans		113,943
All other assets		54,984
Total liabilities	101,814	97,226
Deposits	0	0
Other short-term borrowings	0	0
Long-term debt	95,218	84,973
Consolidated liabilities, All other liabilities	6,596	12,253
Consolidated VIEs | Total consolidated assets before elimination | Special purpose entities created for structured financing | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Total assets	192,200
Cash and due from banks	1,694
Interest-earning deposits in other banks	5,463
Trading account assets	7,294
Investment securities	0
Loans	119,002
All other assets	58,747
Consolidated VIEs | Total consolidated assets before elimination | Repackaged instruments
Variable Interest Entity [Line Items]
Total assets		281,331
Cash and due from banks		3,179
Interest-earning deposits in other banks		0
Trading account assets		73,914
Investment securities		118,199
Loans		85,782
All other assets		257
Total liabilities	345,606	284,795
Deposits	0	0
Other short-term borrowings	22,791	21,343
Long-term debt	248,535	195,987
Consolidated liabilities, All other liabilities	74,280	67,465
Consolidated VIEs | Total consolidated assets before elimination | Repackaged instruments | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Total assets	342,771
Cash and due from banks	4,798
Interest-earning deposits in other banks	0
Trading account assets	134,387
Investment securities	111,711
Loans	88,209
All other assets	3,666
Consolidated VIEs | Total consolidated assets before elimination | Securitization of the MUFG Group’s assets
Variable Interest Entity [Line Items]
Total assets		10,358,628
Cash and due from banks		0
Interest-earning deposits in other banks		996
Trading account assets		0
Investment securities		0
Loans		10,339,273
All other assets		18,359
Total liabilities	10,569,281	10,367,099
Deposits	0	0
Other short-term borrowings	0	31,000
Long-term debt	10,102,964	9,839,204
Consolidated liabilities, All other liabilities	466,317	496,895
Consolidated VIEs | Total consolidated assets before elimination | Securitization of the MUFG Group’s assets | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Total assets	10,544,934
Cash and due from banks	0
Interest-earning deposits in other banks	1,204
Trading account assets	0
Investment securities	0
Loans	10,526,124
All other assets	17,606
Consolidated VIEs | Total consolidated assets before elimination | Trust arrangements
Variable Interest Entity [Line Items]
Total assets		9,029,390
Cash and due from banks		0
Interest-earning deposits in other banks		0
Trading account assets		623,466
Investment securities		1,071,708
Loans		7,334,215
All other assets		1
Total liabilities	8,581,731	9,029,272
Deposits	7,063,850	7,826,959
Other short-term borrowings	683,346	0
Long-term debt	0	0
Consolidated liabilities, All other liabilities	834,535	1,202,313
Consolidated VIEs | Total consolidated assets before elimination | Trust arrangements | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Total assets	8,581,448
Cash and due from banks	0
Interest-earning deposits in other banks	0
Trading account assets	760,960
Investment securities	1,303,063
Loans	6,517,421
All other assets	4
Consolidated VIEs | Total consolidated assets before elimination | Other
Variable Interest Entity [Line Items]
Total assets		43,320
Cash and due from banks		323
Interest-earning deposits in other banks		3,826
Trading account assets		17,108
Investment securities		0
Loans		4,660
All other assets		17,403
Total liabilities	63,126	39,141
Deposits	0	0
Other short-term borrowings	2,268	3,433
Long-term debt	39,511	18,315
Consolidated liabilities, All other liabilities	21,347	17,393
Consolidated VIEs | Total consolidated assets before elimination | Other | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Total assets	67,650
Cash and due from banks	465
Interest-earning deposits in other banks	3,910
Trading account assets	22,110
Investment securities	15,684
Loans	3,496
All other assets	21,985
Consolidated VIEs | The amounts eliminated in consolidation
Variable Interest Entity [Line Items]
Total assets		(8,121,094)
Cash and due from banks		(110,243)
Interest-earning deposits in other banks		(31,690)
Trading account assets		(5,892)
Investment securities		(519,561)
Loans		(7,430,166)
All other assets		(23,542)
Total liabilities	(15,116,977)	(14,679,458)
Deposits	(756)	0
Other short-term borrowings	(2,590,224)	(2,422,978)
Long-term debt	(11,378,021)	(11,144,547)
Consolidated liabilities, All other liabilities	(1,147,976)	(1,111,933)
Consolidated VIEs | The amounts eliminated in consolidation | Pro forma, before transfer of assets and liabilities
Variable Interest Entity [Line Items]
Total assets	(7,424,058)
Cash and due from banks	(115,486)
Interest-earning deposits in other banks	(36,175)
Trading account assets	(54,363)
Investment securities	(567,242)
Loans	(6,619,044)
All other assets	(31,748)
Consolidated VIEs | The amount of liabilities with recourse to the general credit of the MUFG Group
Variable Interest Entity [Line Items]
Total liabilities	(10,081,747)	(10,547,483)
Deposits	(7,063,094)	(7,826,959)
Other short-term borrowings	(2,522,255)	(1,657,447)
Long-term debt	(3,411)	(3,043)
Consolidated liabilities, All other liabilities	¥ (492,987)	¥ (1,060,034)

Variable Interest Entities (A_2

Variable Interest Entities (Assets and Liabilities of Non-consolidated Variable Interest Entities) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Variable Interest Entity [Line Items]
Total assets	¥ 367,650,018	¥ 353,824,625	¥ 331,753,283
Total liabilities	351,353,496	337,580,071
Non-consolidated VIEs
Variable Interest Entity [Line Items]
Total assets	263,554,458	241,164,323
Maximum exposure	21,293,857	18,790,574
Total assets	16,606,190	14,939,167
Trading account assets	1,297,730	1,824,640
Investment securities	4,832,097	4,268,142
Loans	10,256,662	8,690,937
All other assets	219,701	155,448
Total liabilities	60,169	179,568
All other liabilities	60,169	179,568
Non-consolidated VIEs | Asset-backed conduits
Variable Interest Entity [Line Items]
Total assets	27,325,711	25,491,847
Maximum exposure	6,010,143	5,606,965
Total assets	4,858,210	4,211,342
Trading account assets	0	277
Investment securities	1,756,122	1,598,992
Loans	3,102,088	2,612,073
All other assets	0	0
Total liabilities	520	0
All other liabilities	520	0
Non-consolidated VIEs | Investment funds
Variable Interest Entity [Line Items]
Total assets	112,262,392	102,840,486
Maximum exposure	3,352,266	2,646,071
Total assets	2,622,407	2,288,210
Trading account assets	328,963	538,190
Investment securities	622,967	501,434
Loans	1,628,737	1,213,179
All other assets	41,740	35,407
Total liabilities	4,507	114,911
All other liabilities	4,507	114,911
Non-consolidated VIEs | Special purpose entities created for structured financing
Variable Interest Entity [Line Items]
Total assets	42,312,881	38,771,947
Maximum exposure	4,829,867	4,409,839
Total assets	3,275,008	3,254,145
Trading account assets	234,384	476,784
Investment securities	20,854	25,234
Loans	3,012,252	2,745,441
All other assets	7,518	6,686
Total liabilities	25,424	10,447
All other liabilities	25,424	10,447
Non-consolidated VIEs | Repackaged instruments
Variable Interest Entity [Line Items]
Total assets	7,533,839	8,604,182
Maximum exposure	3,627,418	3,088,564
Total assets	3,448,224	3,008,695
Trading account assets	563,524	611,245
Investment securities	2,424,602	2,142,482
Loans	373,834	204,332
All other assets	86,264	50,636
Total liabilities	1,590	29,478
All other liabilities	1,590	29,478
Non-consolidated VIEs | Other
Variable Interest Entity [Line Items]
Total assets	74,119,635	65,455,861
Maximum exposure	3,474,163	3,039,135
Total assets	2,402,341	2,176,775
Trading account assets	170,859	198,144
Investment securities	7,552	0
Loans	2,139,751	1,915,912
All other assets	84,179	62,719
Total liabilities	28,128	24,732
All other liabilities	¥ 28,128	¥ 24,732

Contingent Liabilities (Narrati

Contingent Liabilities (Narrative) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Allowance for repayment of excess interest	¥ 21,120	¥ 24,943
Provision (reversal) for repayment of excess interest recognized on Equity in earnings of equity method investee	¥ 23,332	¥ 0	¥ 7,800

Fees and Commissions Income (De

Fees and Commissions Income (Details of Fees and Commissions Income) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Contract Revenue [Line Items]
Total	¥ 1,658,863	¥ 1,527,283	¥ 1,502,052
Fees and commissions on deposits
Disaggregation of Contract Revenue [Line Items]
Total	51,032	50,131	53,684
Fees and commissions on remittances and transfers
Disaggregation of Contract Revenue [Line Items]
Total	157,236	165,288	169,407
Fees and commissions on foreign trading business
Disaggregation of Contract Revenue [Line Items]
Total	56,344	79,353	66,025
Fees and commissions on credit card business
Disaggregation of Contract Revenue [Line Items]
Total	207,080	199,625	238,112
Fees and commissions on security-related services
Disaggregation of Contract Revenue [Line Items]
Total	264,530	244,017	221,494
Fees and commissions on administration and management services for investment funds
Disaggregation of Contract Revenue [Line Items]
Total	286,549	235,497	184,559
Trust fees
Disaggregation of Contract Revenue [Line Items]
Total	133,322	125,658	119,919
Guarantee fees
Disaggregation of Contract Revenue [Line Items]
Total	45,849	43,889	46,322
Insurance commissions
Disaggregation of Contract Revenue [Line Items]
Total	42,353	42,117	44,415
Fees and commissions on real estate business
Disaggregation of Contract Revenue [Line Items]
Total	65,611	48,110	49,764
Other fees and commissions
Disaggregation of Contract Revenue [Line Items]
Total	¥ 348,957	¥ 293,598	¥ 308,351

Trading Account Profits and L_3

Trading Account Profits and Losses (Net Trading Gains (Losses)) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Trading Account Profits And Losses [Abstract]
Interest rate and other derivative contracts	¥ (102,122)	¥ (429,586)	¥ (159,045)
Trading account securities, excluding derivatives	(722,298)	19,218	924,418
Trading account profits (losses)—net	(824,420)	(410,368)	765,373
Foreign exchange derivative contracts	(44,693)	(79,559)	(434,052)
Net trading gains (losses)	¥ (869,113)	¥ (489,927)	¥ 331,321

Business Segments (Narrative) (

Business Segments (Narrative) (Detail) ¥ in Billions	12 Months Ended
	Mar. 31, 2022 segment	Mar. 31, 2021 JPY (¥)	Mar. 31, 2020 JPY (¥)
Segment Reporting Information [Line Items]
Number of operating segments | segment	7
Business plan, term	3 years
Operating Segments | Global Corporate & Investment Banking Business Group | Customer business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		¥ (5.1)	¥ (9)
Operating Segments | Global Commercial Banking Business Group | Customer business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		(2)	(0.2)
Operating Segments | Retail & Commercial Banking Business Group | Customer business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		191.8	217
Operating Segments | Japanese Corporate & Investment Banking Business Group | Customer business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		0.5	3.5
Operating Segments | Global Markets Business Group
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		0.7	2.9
Operating Segments | Asset Management & Investor Services Business Group | Customer business
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		2.8	2.1
Other
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)		¥ (15.6)	¥ (4.2)

Business Segments (Financial In

Business Segments (Financial Information by Business Segment) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Business segment information
Net revenue:	¥ 4,059,900	¥ 4,017,900	¥ 3,973,200
Net interest income	1,970,581	2,004,094	2,242,799
Operating expenses	2,827,500	2,770,900	2,799,100
Operating profit (loss)	1,232,400	1,247,000	1,174,100
Fixed assets:	1,294,100
BK and TB
Business segment information
Net revenue:	1,871,300	1,877,800	1,872,600
Net interest income	1,152,600	971,400	924,900
Net fees	656,600	606,300	605,400
Other	62,100	300,100	342,300
Other than BK and TB
Business segment information
Net revenue:	2,188,600	2,140,100	2,100,600
Operating Segments | Customer business
Business segment information
Net revenue:	3,605,700	3,370,100	3,418,400
Operating expenses	2,437,900	2,372,900	2,438,900
Operating profit (loss)	1,167,800	997,200	979,500
Fixed assets:	635,400
Operating Segments | Customer business | BK and TB
Business segment information
Net revenue:	1,614,200	1,458,600	1,539,100
Net interest income	798,000	721,800	763,700
Net fees	737,400	681,500	676,900
Other	78,800	55,300	98,500
Operating Segments | Customer business | Other than BK and TB
Business segment information
Net revenue:	1,991,500	1,911,500	1,879,300
Operating Segments | Digital Service Business Group | Customer business
Business segment information
Net revenue:	727,000	731,100	789,600
Operating expenses	554,600	559,600	578,400
Operating profit (loss)	172,400	171,500	211,200
Fixed assets:	140,600
Operating Segments | Digital Service Business Group | Customer business | BK and TB
Business segment information
Net revenue:	260,400	258,400	282,700
Net interest income	219,000	223,600	253,600
Net fees	38,400	32,100	24,600
Other	3,000	2,700	4,500
Operating Segments | Digital Service Business Group | Customer business | Other than BK and TB
Business segment information
Net revenue:	466,600	472,700	506,900
Operating Segments | Retail & Commercial Banking Business Group | Customer business
Business segment information
Net revenue:	600,600	567,400	604,900
Operating expenses	495,900	500,200	532,300
Operating profit (loss)	104,700	67,200	72,600
Fixed assets:	191,700
Operating Segments | Retail & Commercial Banking Business Group | Customer business | BK and TB
Business segment information
Net revenue:	388,600	373,800	422,700
Net interest income	166,500	165,800	189,800
Net fees	201,300	188,900	209,800
Other	20,800	19,100	23,100
Operating Segments | Retail & Commercial Banking Business Group | Customer business | Other than BK and TB
Business segment information
Net revenue:	212,000	193,600	182,200
Operating Segments | Japanese Corporate & Investment Banking Business Group | Customer business
Business segment information
Net revenue:	620,600	563,100	575,900
Operating expenses	319,200	323,000	331,100
Operating profit (loss)	301,400	240,100	244,800
Fixed assets:	155,800
Operating Segments | Japanese Corporate & Investment Banking Business Group | Customer business | BK and TB
Business segment information
Net revenue:	495,200	451,500	444,800
Net interest income	230,600	187,000	188,600
Net fees	211,600	216,300	202,100
Other	53,000	48,200	54,100
Operating Segments | Japanese Corporate & Investment Banking Business Group | Customer business | Other than BK and TB
Business segment information
Net revenue:	125,400	111,600	131,100
Operating Segments | Global Commercial Banking Business Group | Customer business
Business segment information
Net revenue:	781,400	783,500	795,600
Operating expenses	538,000	507,300	564,300
Operating profit (loss)	243,400	276,200	231,300
Fixed assets:	1,000
Operating Segments | Global Commercial Banking Business Group | Customer business | BK and TB
Business segment information
Net revenue:	1,900	1,000	(200)
Net interest income	2,100	1,600	600
Net fees	0	0	0
Other	(200)	(600)	(800)
Operating Segments | Global Commercial Banking Business Group | Customer business | Other than BK and TB
Business segment information
Net revenue:	779,500	782,500	795,800
Operating Segments | Asset Management & Investor Services Business Group | Customer business
Business segment information
Net revenue:	348,900	293,500	243,100
Operating expenses	241,300	212,900	173,900
Operating profit (loss)	107,600	80,600	69,200
Fixed assets:	13,300
Operating Segments | Asset Management & Investor Services Business Group | Customer business | BK and TB
Business segment information
Net revenue:	106,400	99,500	94,800
Net interest income	9,300	5,500	2,500
Net fees	97,100	94,000	92,300
Other	0	0	0
Operating Segments | Asset Management & Investor Services Business Group | Customer business | Other than BK and TB
Business segment information
Net revenue:	242,500	194,000	148,300
Operating Segments | Global Corporate & Investment Banking Business Group | Customer business
Business segment information
Net revenue:	527,200	431,500	409,300
Operating expenses	288,900	269,900	258,900
Operating profit (loss)	238,300	161,600	150,400
Fixed assets:	133,000
Operating Segments | Global Corporate & Investment Banking Business Group | Customer business | BK and TB
Business segment information
Net revenue:	361,700	274,400	294,300
Net interest income	170,500	138,300	128,600
Net fees	189,000	150,200	148,100
Other	2,200	(14,100)	17,600
Operating Segments | Global Corporate & Investment Banking Business Group | Customer business | Other than BK and TB
Business segment information
Net revenue:	165,500	157,100	115,000
Operating Segments | Global Markets Business Group
Business segment information
Net revenue:	427,000	640,300	535,700
Operating expenses	250,000	240,200	235,800
Operating profit (loss)	177,000	400,100	299,900
Fixed assets:	108,400
Operating Segments | Global Markets Business Group | BK and TB
Business segment information
Net revenue:	203,400	386,300	311,800
Net interest income	219,900	212,300	125,400
Net fees	(10,700)	(4,500)	(16,100)
Other	(5,800)	178,500	202,500
Operating Segments | Global Markets Business Group | Other than BK and TB
Business segment information
Net revenue:	223,600	254,000	223,900
Other
Business segment information
Net revenue:	27,200	7,500	19,100
Operating expenses	139,600	157,800	124,400
Operating profit (loss)	(112,400)	(150,300)	(105,300)
Fixed assets:	550,300
Other | Subsidiaries
Business segment information
Fixed assets:	1,286,100
Other | BK and TB
Business segment information
Net revenue:	53,700	32,900	21,700
Net interest income	134,700	37,300	35,800
Net fees	(70,100)	(70,700)	(55,400)
Other	(10,900)	66,300	41,300
Other | Other than BK and TB
Business segment information
Net revenue:	¥ (26,500)	¥ (25,400)	¥ (2,600)

Business Segments (Reconciliati

Business Segments (Reconciliation of Operating Profit (Loss) from Segments to Consolidated Statements of Income) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit:	¥ 1,232,400	¥ 1,247,000	¥ 1,174,100
Provision for credit losses	(277,995)	(484,210)	(321,713)
Trading account profits (losses)—net	(824,420)	(410,368)	765,373
Equity investment securities gains (losses)—net	(38,042)	47,775	(37,541)
Foreign exchange gains (losses)—net	106,868	99,337	(281,790)
Equity in earnings of equity method investees—net	436,583	355,730	282,712
Impairment of goodwill	0	(147,564)	(383,810)
Impairment of intangible assets	(33,301)	(21,680)	(3,732)
Reversal of (provision for) off-balance sheet credit instruments	(46,339)	56,749	62,279
Impairment of assets held for sale (Note 2)	134,141	0	0
Income (loss) before income tax expense (benefit)	(58,727)	1,608,342	433,220
Fixed assets:	1,294,100
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit:	1,232,000	1,247,000	1,174,000
Provision for credit losses	(278,000)	(484,000)	(322,000)
Trading account profits (losses)—net	(1,174,000)	(678,000)	920,000
Equity investment securities gains (losses)—net	(109,000)	1,480,000	(618,000)
Debt investment securities gains (losses)—net	139,000	(129,000)	(403,000)
Foreign exchange gains (losses)—net	(9,000)	9,000	(145,000)
Equity in earnings of equity method investees—net	437,000	356,000	283,000
Impairment of goodwill	0	(148,000)
Impairment of intangible assets	(33,000)	(22,000)	(4,000)
Reversal of (provision for) off-balance sheet credit instruments	(46,000)	57,000	62,000
Impairment of assets held for sale (Note 2)	134,000	0	0
Other—net	(84,000)	(80,000)	(130,000)
Income (loss) before income tax expense (benefit)	(59,000)	1,608,000	433,000
Fixed assets:	0	0	2,268,000
U.S. GAAP adjustments and other	0	0	974,000
Segment Reconciling Items | Japanese GAAP
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Fixed assets:	¥ 0	¥ 0	¥ 1,294,000

Foreign Activities (Estimated F

Foreign Activities (Estimated Financial Information by Geographic Areas) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Foreign Activities Disclosure [Line Items]
Total revenue	¥ 3,925,727	¥ 5,909,783	¥ 5,802,838
Total expense	3,984,454	4,301,441	5,369,618
Income (loss) before income tax expense (benefit)	(58,727)	1,608,342	433,220
Net income (loss) attributable to Mitsubishi UFJ Financial Group	(83,320)	1,117,298	305,955
Total assets at end of fiscal year	367,650,018	353,824,625	331,753,283
Domestic, Japan
Foreign Activities Disclosure [Line Items]
Total revenue	2,160,509	3,348,733	1,596,794
Total expense	2,198,650	2,316,323	2,565,895
Income (loss) before income tax expense (benefit)	(38,141)	1,032,410	(969,101)
Net income (loss) attributable to Mitsubishi UFJ Financial Group	(7,380)	627,138	(1,001,477)
Total assets at end of fiscal year	246,637,054	240,603,939	207,532,337
Foreign, United States of America
Foreign Activities Disclosure [Line Items]
Total revenue	500,590	741,137	2,223,984
Total expense	666,564	713,441	1,051,164
Income (loss) before income tax expense (benefit)	(165,974)	27,696	1,172,820
Net income (loss) attributable to Mitsubishi UFJ Financial Group	(498,205)	(231,116)	1,113,913
Total assets at end of fiscal year	54,576,602	49,478,851	60,587,867
Foreign, Europe
Foreign Activities Disclosure [Line Items]
Total revenue	67,687	356,112	89,412
Total expense	311,639	263,753	218,623
Income (loss) before income tax expense (benefit)	(243,952)	92,359	(129,211)
Net income (loss) attributable to Mitsubishi UFJ Financial Group	(344,044)	74,230	(140,372)
Total assets at end of fiscal year	22,319,350	21,126,639	19,099,410
Foreign, Asia / Oceania Excluding Japan
Foreign Activities Disclosure [Line Items]
Total revenue	975,340	1,134,233	1,326,426
Total expense	726,042	889,494	1,174,200
Income (loss) before income tax expense (benefit)	249,298	244,739	152,226
Net income (loss) attributable to Mitsubishi UFJ Financial Group	506,621	366,880	142,568
Total assets at end of fiscal year	31,909,321	31,368,443	30,845,864
Foreign, Other areas
Foreign Activities Disclosure [Line Items]
Total revenue	221,601	329,568	566,222
Total expense	81,559	118,430	359,736
Income (loss) before income tax expense (benefit)	140,042	211,138	206,486
Net income (loss) attributable to Mitsubishi UFJ Financial Group	259,688	280,166	191,323
Total assets at end of fiscal year	¥ 12,207,691	¥ 11,246,753	¥ 13,687,805

Foreign Activities (Analysis of

Foreign Activities (Analysis of Certain Asset and Liability Accounts Related to Foreign Activities) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Foreign Activities Disclosure [Line Items]
Cash and due from banks	¥ 50,972,491	¥ 49,977,480
Interest-earning deposits in other banks	58,848,056	53,346,721
Cash, due from banks and interest-earning deposits in other banks	109,820,547	103,324,201	¥ 78,549,712
Trading account assets	42,668,336	44,444,379
Investment securities	55,815,751	57,244,496
Loans—net of unearned income, unamortized premiums and deferred loan fees	113,149,393	115,718,863
Deposits	224,589,943	229,206,936
Funds borrowed:
Call money, funds purchased	2,416,313	2,353,830
Payables under repurchase agreements	27,725,612	24,567,943
Payables under securities lending transactions	1,021,887	842,590
Other short-term borrowings	16,543,137	14,187,723
Long-term debt	34,696,599	35,157,651
Trading account liabilities	¥ 11,019,046	12,017,553
Foreign
Foreign Activities Disclosure [Line Items]
Cash and due from banks		1,050,661	1,090,501
Interest-earning deposits in other banks		12,459,897	12,377,887
Cash, due from banks and interest-earning deposits in other banks		13,510,558	13,468,388
Trading account assets		26,849,102	28,525,243
Investment securities		7,157,322	8,694,138
Loans—net of unearned income, unamortized premiums and deferred loan fees		45,338,581	47,333,878
Deposits		46,932,643	55,145,437
Funds borrowed:
Call money, funds purchased		306,053	323,066
Payables under repurchase agreements		10,769,853	10,974,238
Payables under securities lending transactions		144,854	130,380
Other short-term borrowings		3,940,997	3,474,821
Long-term debt		1,596,146	2,421,267
Total		16,757,903	17,323,772
Trading account liabilities		¥ 5,919,017	¥ 5,575,956

Fair Value (Assets and Liabilit

Fair Value (Assets and Liabilities Measured at Fair Value by Level on Recurring Basis) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Assets
Trading derivative assets	¥ 10,534,000	¥ 11,997,000
Available-for-sale debt securities, Fair value	45,798,442	47,117,813
Equity securities	5,422,200	6,222,920
Liabilities
Trading derivative liabilities	10,895,000	11,714,000
Obligation to return securities received as collateral	6,826,215	6,581,759
Disposal group, disposed of by sale, not discontinued operations
Assets
Assets held for sale relating to transferred business of MUFG Union Bank (Note 2)	11,621,567	0
Liabilities held for sale:
Other	11,157,660	0
Interest rate contracts
Assets
Trading derivative assets	5,445,000	7,718,000
Liabilities
Trading derivative liabilities	5,652,000	7,361,000
Foreign exchange contracts
Assets
Trading derivative assets	4,803,000	3,910,000
Liabilities
Trading derivative liabilities	4,908,000	4,027,000
Equity contracts
Assets
Trading derivative assets	151,000	231,000
Liabilities
Trading derivative liabilities	277,000	237,000
Commodity contracts
Assets
Trading derivative assets	22,000	27,000
Liabilities
Trading derivative liabilities	22,000	27,000
Credit derivatives
Assets
Trading derivative assets	103,000	94,000
Liabilities
Trading derivative liabilities	101,000	109,000
Other
Assets
Trading derivative assets	10,000	17,000
Liabilities
Trading derivative liabilities	(65,000)	(47,000)
Japanese national government and Japanese government agency bonds
Assets
Available-for-sale debt securities, Fair value	34,327,764	35,273,211
Japanese prefectural and municipal bonds
Assets
Available-for-sale debt securities, Fair value	4,146,144	3,731,513
Foreign government and official institution bonds
Assets
Available-for-sale debt securities, Fair value	2,631,343	2,926,963
Corporate bonds
Assets
Available-for-sale debt securities, Fair value	1,090,148	1,134,270
Residential mortgage-backed securities
Assets
Available-for-sale debt securities, Fair value	900,407	1,467,130
Commercial mortgage-backed securities
Assets
Available-for-sale debt securities, Fair value		464,565
Asset-backed securities
Assets
Available-for-sale debt securities, Fair value	1,588,420	1,384,485
Other debt securities
Assets
Available-for-sale debt securities, Fair value	103,579	171,578
Commercial paper
Assets
Available-for-sale debt securities, Fair value	1,010,637	564,098
Fair Value, Measurements, Recurring
Assets
Trading account assets:	31,967,627	32,360,686
Trading derivative assets	10,521,431	11,981,438
Available-for-sale debt securities, Fair value	45,798,442	47,117,813
Equity securities	5,042,026	5,805,061
Other	1,477,532	1,263,701
Assets held for sale:
Total	98,098,401	98,528,699
Liabilities
Trading securities sold, not yet purchased	59,826	261,138
Trading derivative liabilities	10,959,220	11,756,415
Obligation to return securities received as collateral	6,826,215	6,581,759
Other	541,598	556,341
Liabilities held for sale	53,199
Liabilities held for sale:
Other	53,199
Total	18,440,058	19,155,653
Fair Value, Measurements, Recurring | Disposal group, disposed of by sale, not discontinued operations
Assets
Assets held for sale relating to transferred business of MUFG Union Bank (Note 2)	3,291,343
Assets held for sale:
Investment securities	3,188,257
Other	103,086
Fair Value, Measurements, Recurring | Equity securities
Assets
Trading account assets:	2,904,839	3,464,628
Fair Value, Measurements, Recurring | Equity securities | NAV of private equity funds
Liabilities held for sale:
Investment securities valued at net asset value	179,278	102,255
Unfunded commitments	110,360	97,413
Fair Value, Measurements, Recurring | Level 1
Assets
Trading account assets:	17,170,976	18,439,146
Trading derivative assets	201,860	136,515
Available-for-sale debt securities, Fair value	32,672,696	34,010,613
Equity securities	4,834,102	5,530,077
Other	1,434,046	1,202,230
Assets held for sale:
Total	56,735,130	59,318,581
Liabilities
Trading securities sold, not yet purchased	57,371	260,149
Trading derivative liabilities	217,570	150,750
Obligation to return securities received as collateral	6,670,482	6,484,452
Other	0	0
Liabilities held for sale:
Other	852
Total	6,946,275	6,895,351
Fair Value, Measurements, Recurring | Level 1 | Disposal group, disposed of by sale, not discontinued operations
Assets
Assets held for sale relating to transferred business of MUFG Union Bank (Note 2)	421,450
Assets held for sale:
Investment securities	409,618
Other	11,832
Liabilities
Liabilities held for sale	852
Fair Value, Measurements, Recurring | Level 1 | Equity securities
Assets
Trading account assets:	1,633,726	2,125,587
Fair Value, Measurements, Recurring | Level 2
Assets
Trading account assets:	13,998,654	13,165,127
Trading derivative assets	10,204,531	11,774,865
Available-for-sale debt securities, Fair value	12,912,810	12,817,584
Equity securities	152,041	229,415
Other	38,574	42,687
Assets held for sale:
Total	40,097,982	38,029,678
Liabilities
Trading securities sold, not yet purchased	2,455	989
Trading derivative liabilities	10,697,699	11,560,634
Obligation to return securities received as collateral	155,733	97,307
Other	525,135	558,553
Liabilities held for sale	50,744
Liabilities held for sale:
Other	50,744
Total	11,431,766	12,217,483
Fair Value, Measurements, Recurring | Level 2 | Disposal group, disposed of by sale, not discontinued operations
Assets
Assets held for sale relating to transferred business of MUFG Union Bank (Note 2)	2,791,372
Assets held for sale:
Investment securities	2,713,377
Other	77,995
Fair Value, Measurements, Recurring | Level 2 | Equity securities
Assets
Trading account assets:	1,103,907	1,199,431
Fair Value, Measurements, Recurring | Level 3
Assets
Trading account assets:	797,997	756,413
Trading derivative assets	115,040	70,058
Available-for-sale debt securities, Fair value	212,936	289,616
Equity securities	55,883	45,569
Other	4,912	18,784
Assets held for sale:
Total	1,265,289	1,180,440
Liabilities
Trading securities sold, not yet purchased	0	0
Trading derivative liabilities	43,951	45,031
Obligation to return securities received as collateral	0	0
Other	16,463	(2,212)
Liabilities held for sale	1,603
Liabilities held for sale:
Other	1,603
Total	62,017	42,819
Fair Value, Measurements, Recurring | Level 3 | Disposal group, disposed of by sale, not discontinued operations
Assets
Assets held for sale relating to transferred business of MUFG Union Bank (Note 2)	78,521
Assets held for sale:
Investment securities	65,262
Other	13,259
Fair Value, Measurements, Recurring | Level 3 | Equity securities
Assets
Trading account assets:	167,206	139,610
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds
Assets
Available-for-sale debt securities, Fair value	34,327,764	35,273,211
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Debt securities
Assets
Trading account assets:	8,271,741	7,201,833
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 1
Assets
Available-for-sale debt securities, Fair value	30,989,319	32,073,409
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 1 | Debt securities
Assets
Trading account assets:	7,927,707	6,800,379
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 2
Assets
Available-for-sale debt securities, Fair value	3,338,445	3,199,802
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 2 | Debt securities
Assets
Trading account assets:	344,034	401,454
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 3
Assets
Available-for-sale debt securities, Fair value	0	0
Fair Value, Measurements, Recurring | Japanese national government and Japanese government agency bonds | Level 3 | Debt securities
Assets
Trading account assets:	0	0
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds
Assets
Available-for-sale debt securities, Fair value	4,146,144	3,731,513
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Debt securities
Assets
Trading account assets:	132,097	193,936
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Level 1
Assets
Available-for-sale debt securities, Fair value	0	0
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Level 1 | Debt securities
Assets
Trading account assets:	0	0
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Level 2
Assets
Available-for-sale debt securities, Fair value	4,146,144	3,731,513
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Level 2 | Debt securities
Assets
Trading account assets:	132,097	193,936
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Level 3
Assets
Available-for-sale debt securities, Fair value	0	0
Fair Value, Measurements, Recurring | Japanese prefectural and municipal bonds | Level 3 | Debt securities
Assets
Trading account assets:	0	0
Fair Value, Measurements, Recurring | Foreign government and official institution bonds
Assets
Available-for-sale debt securities, Fair value	2,631,343	2,926,963
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Debt securities
Assets
Trading account assets:	8,079,219	9,959,753
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 1
Assets
Available-for-sale debt securities, Fair value	1,683,377	1,937,204
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 1 | Debt securities
Assets
Trading account assets:	7,606,345	9,508,030
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 2
Assets
Available-for-sale debt securities, Fair value	936,076	973,041
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 2 | Debt securities
Assets
Trading account assets:	471,163	450,443
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 3
Assets
Available-for-sale debt securities, Fair value	11,890	16,718
Fair Value, Measurements, Recurring | Foreign government and official institution bonds | Level 3 | Debt securities
Assets
Trading account assets:	1,711	1,280
Fair Value, Measurements, Recurring | Corporate bonds
Assets
Available-for-sale debt securities, Fair value	1,090,148	1,134,270
Fair Value, Measurements, Recurring | Corporate bonds | Debt securities
Assets
Trading account assets:	2,668,750	2,711,811
Fair Value, Measurements, Recurring | Corporate bonds | Level 1
Assets
Available-for-sale debt securities, Fair value	0	0
Fair Value, Measurements, Recurring | Corporate bonds | Level 1 | Debt securities
Assets
Trading account assets:	3,198	5,123
Fair Value, Measurements, Recurring | Corporate bonds | Level 2
Assets
Available-for-sale debt securities, Fair value	1,087,059	1,134,108
Fair Value, Measurements, Recurring | Corporate bonds | Level 2 | Debt securities
Assets
Trading account assets:	2,664,869	2,706,611
Fair Value, Measurements, Recurring | Corporate bonds | Level 3
Assets
Available-for-sale debt securities, Fair value	3,089	162
Fair Value, Measurements, Recurring | Corporate bonds | Level 3 | Debt securities
Assets
Trading account assets:	683	77
Fair Value, Measurements, Recurring | Residential mortgage-backed securities
Assets
Available-for-sale debt securities, Fair value	900,407	1,467,130
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Debt securities
Assets
Trading account assets:	6,792,386	6,167,340
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 1
Assets
Available-for-sale debt securities, Fair value	0	0
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 1 | Debt securities
Assets
Trading account assets:	0	27
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 2
Assets
Available-for-sale debt securities, Fair value	900,392	1,467,115
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 2 | Debt securities
Assets
Trading account assets:	6,792,386	6,166,313
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 3
Assets
Available-for-sale debt securities, Fair value	15	15
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 3 | Debt securities
Assets
Trading account assets:	0	1,000
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities
Assets
Available-for-sale debt securities, Fair value		464,565
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Debt securities
Assets
Trading account assets:	7,402
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 1
Assets
Available-for-sale debt securities, Fair value		0
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 1 | Debt securities
Assets
Trading account assets:	0
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 2
Assets
Available-for-sale debt securities, Fair value		462,966
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 2 | Debt securities
Assets
Trading account assets:	7,402
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 3
Assets
Available-for-sale debt securities, Fair value		1,599
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 3 | Debt securities
Assets
Trading account assets:	0
Fair Value, Measurements, Recurring | Asset-backed securities
Assets
Available-for-sale debt securities, Fair value	1,588,420	1,384,485
Fair Value, Measurements, Recurring | Asset-backed securities | Debt securities
Assets
Trading account assets:	1,526,106	1,382,517
Fair Value, Measurements, Recurring | Asset-backed securities | Level 1
Assets
Available-for-sale debt securities, Fair value	0	0
Fair Value, Measurements, Recurring | Asset-backed securities | Level 1 | Debt securities
Assets
Trading account assets:	0	0
Fair Value, Measurements, Recurring | Asset-backed securities | Level 2
Assets
Available-for-sale debt securities, Fair value	1,464,041	1,247,565
Fair Value, Measurements, Recurring | Asset-backed securities | Level 2 | Debt securities
Assets
Trading account assets:	1,210,875	1,045,706
Fair Value, Measurements, Recurring | Asset-backed securities | Level 3
Assets
Available-for-sale debt securities, Fair value	124,379	136,920
Fair Value, Measurements, Recurring | Asset-backed securities | Level 3 | Debt securities
Assets
Trading account assets:	315,231	336,811
Fair Value, Measurements, Recurring | Other debt securities
Assets
Available-for-sale debt securities, Fair value	103,579	171,578
Fair Value, Measurements, Recurring | Other debt securities | Debt securities
Assets
Trading account assets:	313,166	277,635
Fair Value, Measurements, Recurring | Other debt securities | Level 1
Assets
Available-for-sale debt securities, Fair value	0	0
Fair Value, Measurements, Recurring | Other debt securities | Level 1 | Debt securities
Assets
Trading account assets:	0	0
Fair Value, Measurements, Recurring | Other debt securities | Level 2
Assets
Available-for-sale debt securities, Fair value	30,016	37,376
Fair Value, Measurements, Recurring | Other debt securities | Level 2 | Debt securities
Assets
Trading account assets:	0	0
Fair Value, Measurements, Recurring | Other debt securities | Level 3
Assets
Available-for-sale debt securities, Fair value	73,563	134,202
Fair Value, Measurements, Recurring | Other debt securities | Level 3 | Debt securities
Assets
Trading account assets:	313,166	277,635
Fair Value, Measurements, Recurring | Commercial paper
Assets
Available-for-sale debt securities, Fair value	1,010,637	564,098
Fair Value, Measurements, Recurring | Commercial paper | Debt securities
Assets
Trading account assets:	1,271,921	1,001,233
Fair Value, Measurements, Recurring | Commercial paper | Level 1
Assets
Available-for-sale debt securities, Fair value	0	0
Fair Value, Measurements, Recurring | Commercial paper | Level 1 | Debt securities
Assets
Trading account assets:	0	0
Fair Value, Measurements, Recurring | Commercial paper | Level 2
Assets
Available-for-sale debt securities, Fair value	1,010,637	564,098
Fair Value, Measurements, Recurring | Commercial paper | Level 2 | Debt securities
Assets
Trading account assets:	1,271,921	1,001,233
Fair Value, Measurements, Recurring | Commercial paper | Level 3
Assets
Available-for-sale debt securities, Fair value	0	0
Fair Value, Measurements, Recurring | Commercial paper | Level 3 | Debt securities
Assets
Trading account assets:	0	0
Fair Value, Measurements, Recurring | Marketable equity securities
Assets
Equity securities	4,986,143	5,759,492
Fair Value, Measurements, Recurring | Marketable equity securities | Level 1
Assets
Equity securities	4,834,102	5,530,077
Fair Value, Measurements, Recurring | Marketable equity securities | Level 2
Assets
Equity securities	152,041	229,415
Fair Value, Measurements, Recurring | Marketable equity securities | Level 3
Assets
Equity securities	0	0
Fair Value, Measurements, Recurring | Nonmarketable equity securities
Assets
Equity securities	55,883	45,569
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Private equity funds
Liabilities held for sale:
Unfunded commitments	0	4,758
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Real estate funds
Liabilities held for sale:
Investment securities valued at net asset value	30,142	27,395
Unfunded commitments	1,011	1,006
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Private equity and other funds
Liabilities held for sale:
Investment securities valued at net asset value	39,462	34,390
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Level 1
Assets
Equity securities	0	0
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Level 2
Assets
Equity securities	0	0
Fair Value, Measurements, Recurring | Nonmarketable equity securities | Level 3
Assets
Equity securities	55,883	45,569
Fair Value, Measurements, Recurring | Interest rate contracts
Assets
Trading derivative assets	5,444,683	7,717,955
Liabilities
Trading derivative liabilities	5,651,690	7,361,129
Fair Value, Measurements, Recurring | Interest rate contracts | Level 1
Assets
Trading derivative assets	121,584	23,906
Liabilities
Trading derivative liabilities	19,841	10,696
Fair Value, Measurements, Recurring | Interest rate contracts | Level 2
Assets
Trading derivative assets	5,268,790	7,673,031
Liabilities
Trading derivative liabilities	5,615,033	7,343,594
Fair Value, Measurements, Recurring | Interest rate contracts | Level 3
Assets
Trading derivative assets	54,309	21,018
Liabilities
Trading derivative liabilities	16,816	6,839
Fair Value, Measurements, Recurring | Foreign exchange contracts
Assets
Trading derivative assets	4,800,813	3,910,162
Liabilities
Trading derivative liabilities	4,907,168	4,022,141
Fair Value, Measurements, Recurring | Foreign exchange contracts | Level 1
Assets
Trading derivative assets	2,514	929
Liabilities
Trading derivative liabilities	4,017	977
Fair Value, Measurements, Recurring | Foreign exchange contracts | Level 2
Assets
Trading derivative assets	4,788,739	3,896,713
Liabilities
Trading derivative liabilities	4,901,054	4,015,927
Fair Value, Measurements, Recurring | Foreign exchange contracts | Level 3
Assets
Trading derivative assets	9,560	12,520
Liabilities
Trading derivative liabilities	2,097	5,237
Fair Value, Measurements, Recurring | Equity contracts
Assets
Trading derivative assets	150,948	231,575
Liabilities
Trading derivative liabilities	277,077	237,418
Fair Value, Measurements, Recurring | Equity contracts | Level 1
Assets
Trading derivative assets	77,762	111,680
Liabilities
Trading derivative liabilities	193,712	139,077
Fair Value, Measurements, Recurring | Equity contracts | Level 2
Assets
Trading derivative assets	47,207	113,586
Liabilities
Trading derivative liabilities	80,806	92,655
Fair Value, Measurements, Recurring | Equity contracts | Level 3
Assets
Trading derivative assets	25,979	6,309
Liabilities
Trading derivative liabilities	2,559	5,686
Fair Value, Measurements, Recurring | Commodity contracts
Assets
Trading derivative assets	22,072	26,897
Liabilities
Trading derivative liabilities	22,029	26,960
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	88	1
Liabilities
Trading derivative liabilities	0	1
Fair Value, Measurements, Recurring | Commodity contracts | Level 3
Assets
Trading derivative assets	21,984	26,896
Liabilities
Trading derivative liabilities	22,029	26,959
Fair Value, Measurements, Recurring | Credit derivatives
Assets
Trading derivative assets	102,515	93,888
Liabilities
Trading derivative liabilities	100,885	108,540
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	99,707	91,534
Liabilities
Trading derivative liabilities	100,806	108,457
Fair Value, Measurements, Recurring | Credit derivatives | Level 3
Assets
Trading derivative assets	2,808	2,354
Liabilities
Trading derivative liabilities	79	83
Fair Value, Measurements, Recurring | Other
Assets
Trading derivative assets	400	961
Liabilities
Trading derivative liabilities	371	227
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	400	961
Liabilities
Trading derivative liabilities	¥ 371	¥ 227

Fair Value (Reconciliation of A

Fair Value (Reconciliation of Assets and Liabilities Measured at Fair Value on Recurring Basis Using Level 3 Inputs) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gains (losses) for the period included in earnings, Liabilities	¥ 8,315
Fair Value, Measurements, Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	1,135,409	¥ 881,017
Total gains (losses) for the period included in earnings, Assets	68,815	51,944
Total gains (losses) for the period included in other comprehensive income, Assets	32,308	(16,012)
Purchases, Assets	708,270	675,013
Issues, Assets	674	653
Sales, Assets	(204,970)	(191,734)
Settlements, Assets	(570,658)	(414,592)
Transfers into Level 3, Assets	136,272	188,587
Transfers out of Level 3, Assets	(85,037)	(38,161)
Level 3 assets, Ending balance	1,219,735	1,135,409
Change in unrealized gains (losses) included in earnings for assets still held at period end	105,473	29,112
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 liabilities, Beginning balance	(2,212)	6,606
Total gains (losses) for the period included in earnings, Liabilities		(32,946)
Total gains (losses) for the period included in other comprehensive income, Liabilities	(3,080)	937
Purchases, Liabilities	0	0
Issues, Liabilities	36,535	5,336
Sales, Liabilities	0	0
Settlements, Liabilities	(19,361)	(27,823)
Transfers into Level 3, Liabilities	5,364
Transfers out of Level 3, Liabilities	1,372	(10,654)
Level 3 liabilities, Ending balance	16,463	(2,212)
Change in unrealized gains (losses) included in earnings for liabilities still held at period end	15,532	(17,043)
Fair Value, Measurements, Recurring | Discontinued Operations, Held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gains (losses) for the period included in earnings, Assets	(2,589)
Total gains (losses) for the period included in other comprehensive income, Assets	4,234
Purchases, Assets	770
Issues, Assets	0
Sales, Assets	0
Settlements, Assets	(4,247)
Transfers into Level 3, Assets	78,750
Transfers out of Level 3, Assets	0
Level 3 assets, Ending balance	76,918
Change in unrealized gains (losses) included in earnings for assets still held at period end	1,461
Fair Value, Measurements, Recurring | Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	0
Level 3 assets, Ending balance		0
Fair Value, Measurements, Recurring | Other
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 liabilities, Beginning balance	(2,212)	6,606
Total gains (losses) for the period included in earnings, Liabilities	8,315	(32,946)
Total gains (losses) for the period included in other comprehensive income, Liabilities	(3,080)	937
Purchases, Liabilities	0	0
Issues, Liabilities	36,535	5,336
Sales, Liabilities	0	0
Settlements, Liabilities	(19,361)	(27,823)
Transfers into Level 3, Liabilities	5,364	(7,686)
Transfers out of Level 3, Liabilities	1,372	(10,654)
Level 3 liabilities, Ending balance	16,463	(2,212)
Change in unrealized gains (losses) included in earnings for liabilities still held at period end	15,532	(17,043)
Fair Value, Measurements, Recurring | Trading account, Trading securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	756,413	525,946
Total gains (losses) for the period included in earnings, Assets	41,919	21,730
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	458,395	352,917
Issues, Assets	0	0
Sales, Assets	(197,245)	(189,980)
Settlements, Assets	(262,150)	(117,399)
Transfers into Level 3, Assets	665	190,391
Transfers out of Level 3, Assets	0	(27,192)
Level 3 assets, Ending balance	797,997	756,413
Change in unrealized gains (losses) included in earnings for assets still held at period end	40,113	23,477
Fair Value, Measurements, Recurring | 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	1,280	1,052
Total gains (losses) for the period included in earnings, Assets	287	625
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	31,591	49,637
Issues, Assets	0	0
Sales, Assets	(31,432)	(49,927)
Settlements, Assets	(15)	(59)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	(48)
Level 3 assets, Ending balance	1,711	1,280
Change in unrealized gains (losses) included in earnings for assets still held at period end	47	159
Fair Value, Measurements, Recurring | Trading account, Debt securities | Corporate bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	77	144
Total gains (losses) for the period included in earnings, Assets	(68)	31
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	126	82
Issues, Assets	0	0
Sales, Assets	(100)	(180)
Settlements, Assets	0	0
Transfers into Level 3, Assets	648	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	683	77
Change in unrealized gains (losses) included in earnings for assets still held at period end	(69)	(5)
Fair Value, Measurements, Recurring | 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	0
Total gains (losses) for the period included in earnings, Assets	(2)	0
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	97,197	51,533
Issues, Assets	0	0
Sales, Assets	(98,176)	(50,533)
Settlements, Assets	(19)	0
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	0	1,000
Change in unrealized gains (losses) included in earnings for assets still held at period end	0	0
Fair Value, Measurements, Recurring | 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	336,811	416,259
Total gains (losses) for the period included in earnings, Assets	26,692	12,808
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	270,974	106,308
Issues, Assets	0	0
Sales, Assets	(67,500)	(83,700)
Settlements, Assets	(251,746)	(114,864)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	315,231	336,811
Change in unrealized gains (losses) included in earnings for assets still held at period end	27,693	16,309
Fair Value, Measurements, Recurring | 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	277,635	6,651
Total gains (losses) for the period included in earnings, Assets	14,179	11,096
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	21,352	69,499
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	0	0
Transfers into Level 3, Assets	0	190,389
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	313,166	277,635
Change in unrealized gains (losses) included in earnings for assets still held at period end	14,179	11,096
Fair Value, Measurements, Recurring | Trading account, equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	139,610	101,840
Total gains (losses) for the period included in earnings, Assets	831	(2,830)
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	37,155	75,858
Issues, Assets	0	0
Sales, Assets	(37)	(5,640)
Settlements, Assets	(10,370)	(2,476)
Transfers into Level 3, Assets	17	2
Transfers out of Level 3, Assets	0	(27,144)
Level 3 assets, Ending balance	167,206	139,610
Change in unrealized gains (losses) included in earnings for assets still held at period end	(1,737)	(4,082)
Fair Value, Measurements, Recurring | Trading derivatives—net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	25,027	3,477
Total gains (losses) for the period included in earnings, Assets	23,754	45,361
Total gains (losses) for the period included in other comprehensive income, Assets	1,882	(104)
Purchases, Assets	51	597
Issues, Assets	674	653
Sales, Assets	0	0
Settlements, Assets	(16,312)	(20,689)
Transfers into Level 3, Assets	41,076	(2,159)
Transfers out of Level 3, Assets	(3,715)	(803)
Level 3 assets, Ending balance	71,089	25,027
Change in unrealized gains (losses) included in earnings for assets still held at period end	46,149	31,184
Fair Value, Measurements, Recurring | Trading derivatives—net | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	14,179	(750)
Total gains (losses) for the period included in earnings, Assets	(25,977)	14,401
Total gains (losses) for the period included in other comprehensive income, Assets	824	(32)
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	9,696	1,405
Transfers into Level 3, Assets	39,609	(99)
Transfers out of Level 3, Assets	(838)	(746)
Level 3 assets, Ending balance	37,493	14,179
Change in unrealized gains (losses) included in earnings for assets still held at period end	4,410	11,807
Fair Value, Measurements, Recurring | Trading derivatives—net | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	7,283	5,005
Total gains (losses) for the period included in earnings, Assets	2,403	3,743
Total gains (losses) for the period included in other comprehensive income, Assets	206	(128)
Purchases, Assets	21	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	1,833	140
Transfers into Level 3, Assets	1,467	(1,480)
Transfers out of Level 3, Assets	(5,750)	3
Level 3 assets, Ending balance	7,463	7,283
Change in unrealized gains (losses) included in earnings for assets still held at period end	(1,640)	3,812
Fair Value, Measurements, Recurring | Trading derivatives—net | Equity contracts
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	623	(4,222)
Total gains (losses) for the period included in earnings, Assets	46,579	27,299
Total gains (losses) for the period included in other comprehensive income, Assets	858	55
Purchases, Assets	30	3
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(27,543)	(21,944)
Transfers into Level 3, Assets	0	(580)
Transfers out of Level 3, Assets	2,873	12
Level 3 assets, Ending balance	23,420	623
Change in unrealized gains (losses) included in earnings for assets still held at period end	42,546	15,660
Fair Value, Measurements, Recurring | Trading derivatives—net | Commodity contracts
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	(63)	(65)
Total gains (losses) for the period included in earnings, Assets	30	1
Total gains (losses) for the period included in other comprehensive income, Assets	(6)	1
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(6)	0
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	(45)	(63)
Change in unrealized gains (losses) included in earnings for assets still held at period end	30	1
Fair Value, Measurements, Recurring | Trading derivatives—net | Credit derivatives
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	2,271	2,727
Total gains (losses) for the period included in earnings, Assets	750	(166)
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	(292)	(290)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	2,729	2,271
Change in unrealized gains (losses) included in earnings for assets still held at period end	819	(182)
Fair Value, Measurements, Recurring | Trading derivatives—net | Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	734	782
Total gains (losses) for the period included in earnings, Assets	(31)	83
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	0	594
Issues, Assets	674	653
Sales, Assets	0	0
Settlements, Assets	0	0
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	(72)
Level 3 assets, Ending balance	29	734
Change in unrealized gains (losses) included in earnings for assets still held at period end	(16)	86
Fair Value, Measurements, Recurring | Available-for-sale debt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	289,616	274,930
Total gains (losses) for the period included in earnings, Assets	277	6,710
Total gains (losses) for the period included in other comprehensive income, Assets	25,143	(14,559)
Purchases, Assets	236,786	308,672
Issues, Assets	0	0
Sales, Assets	0	(11)
Settlements, Assets	(287,747)	(276,234)
Transfers into Level 3, Assets	15,651	70
Transfers out of Level 3, Assets	(66,790)	(9,962)
Level 3 assets, Ending balance	212,936	289,616
Change in unrealized gains (losses) included in earnings for assets still held at period end	12,545	(2,779)
Fair Value, Measurements, Recurring | Available-for-sale debt securities | Discontinued Operations, Held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	0
Total gains (losses) for the period included in earnings, Assets	(963)
Total gains (losses) for the period included in other comprehensive income, Assets	3,791
Purchases, Assets	1
Issues, Assets	0
Sales, Assets	0
Settlements, Assets	(4,247)
Transfers into Level 3, Assets	66,680
Transfers out of Level 3, Assets	0
Level 3 assets, Ending balance	65,262	0
Change in unrealized gains (losses) included in earnings for assets still held at period end	5,737
Fair Value, Measurements, Recurring | Available-for-sale 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	16,718	15,767
Total gains (losses) for the period included in earnings, Assets	0	0
Total gains (losses) for the period included in other comprehensive income, Assets	607	(888)
Purchases, Assets	5,163	3,518
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(5,964)	(1,679)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	(4,634)	0
Level 3 assets, Ending balance	11,890	16,718
Change in unrealized gains (losses) included in earnings for assets still held at period end	87	473
Fair Value, Measurements, Recurring | Available-for-sale debt securities | Corporate bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	162	10,108
Total gains (losses) for the period included in earnings, Assets	(328)	(8)
Total gains (losses) for the period included in other comprehensive income, Assets	68	(1)
Purchases, Assets	557	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(114)	(45)
Transfers into Level 3, Assets	2,854	70
Transfers out of Level 3, Assets	(110)	(9,962)
Level 3 assets, Ending balance	3,089	162
Change in unrealized gains (losses) included in earnings for assets still held at period end	(265)	(10)
Fair Value, Measurements, Recurring | Available-for-sale debt securities | Residential mortgage-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	15	15
Total gains (losses) for the period included in earnings, Assets	0	0
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	0	0
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	15	15
Change in unrealized gains (losses) included in earnings for assets still held at period end	0	0
Fair Value, Measurements, Recurring | Available-for-sale debt 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	1,977
Total gains (losses) for the period included in earnings, Assets	0	0
Total gains (losses) for the period included in other comprehensive income, Assets	104	(346)
Purchases, Assets	0	0
Issues, Assets	0	0
Sales, Assets	0	(11)
Settlements, Assets	(524)	(21)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	(1,179)	0
Level 3 assets, Ending balance	0	1,599
Change in unrealized gains (losses) included in earnings for assets still held at period end	0	(163)
Fair Value, Measurements, Recurring | Available-for-sale debt securities | Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	136,920	140,875
Total gains (losses) for the period included in earnings, Assets	580	6,718
Total gains (losses) for the period included in other comprehensive income, Assets	14,066	(7,958)
Purchases, Assets	231,039	267,767
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(258,226)	(270,482)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	0	0
Level 3 assets, Ending balance	124,379	136,920
Change in unrealized gains (losses) included in earnings for assets still held at period end	6,651	(4,047)
Fair Value, Measurements, Recurring | Available-for-sale debt securities | Other debt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	134,202	106,188
Total gains (losses) for the period included in earnings, Assets	25	0
Total gains (losses) for the period included in other comprehensive income, Assets	10,298	(5,366)
Purchases, Assets	27	37,387
Issues, Assets	0	0
Sales, Assets	0	0
Settlements, Assets	(22,919)	(4,007)
Transfers into Level 3, Assets	12,797	0
Transfers out of Level 3, Assets	(60,867)	0
Level 3 assets, Ending balance	73,563	134,202
Change in unrealized gains (losses) included in earnings for assets still held at period end	6,072	968
Fair Value, Measurements, Recurring | Investment securities, equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	45,569	39,963
Total gains (losses) for the period included in earnings, Assets	5,856	(3,231)
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	9,899	10,481
Issues, Assets	0	0
Sales, Assets	(3,113)	(1,725)
Settlements, Assets	0	0
Transfers into Level 3, Assets	130	285
Transfers out of Level 3, Assets	(2,458)	(204)
Level 3 assets, Ending balance	55,883	45,569
Change in unrealized gains (losses) included in earnings for assets still held at period end	3,960	(4,150)
Fair Value, Measurements, Recurring | 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	45,569	39,963
Total gains (losses) for the period included in earnings, Assets	5,856	(3,231)
Total gains (losses) for the period included in other comprehensive income, Assets	0	0
Purchases, Assets	9,899	10,481
Issues, Assets	0	0
Sales, Assets	(3,113)	(1,725)
Settlements, Assets	0	0
Transfers into Level 3, Assets	130	285
Transfers out of Level 3, Assets	(2,458)	(204)
Level 3 assets, Ending balance	55,883	45,569
Change in unrealized gains (losses) included in earnings for assets still held at period end	3,960	(4,150)
Fair Value, Measurements, Recurring | Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	18,784	36,701
Total gains (losses) for the period included in earnings, Assets	(402)	(18,626)
Total gains (losses) for the period included in other comprehensive income, Assets	1,049	(1,349)
Purchases, Assets	2,369	2,346
Issues, Assets	0	0
Sales, Assets	(4,612)	(18)
Settlements, Assets	(202)	(270)
Transfers into Level 3, Assets	0	0
Transfers out of Level 3, Assets	(12,074)	0
Level 3 assets, Ending balance	4,912	18,784
Change in unrealized gains (losses) included in earnings for assets still held at period end	1,245	(18,620)
Fair Value, Measurements, Recurring | Other | Discontinued Operations, Held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Level 3 assets, Beginning balance	0
Total gains (losses) for the period included in earnings, Assets	(1,626)
Total gains (losses) for the period included in other comprehensive income, Assets	443
Purchases, Assets	769
Issues, Assets	0
Sales, Assets	0
Settlements, Assets	0
Transfers into Level 3, Assets	12,070
Transfers out of Level 3, Assets	0
Level 3 assets, Ending balance	11,656	¥ 0
Change in unrealized gains (losses) included in earnings for assets still held at period end	¥ (4,276)

Fair Value (Quantitative Inform

Fair Value (Quantitative Information about Level 3 Fair Value Measurements) (Detail) - Fair Value, Measurements, Recurring - Level 3 ¥ in Millions	Mar. 31, 2022 JPY (¥) yr	Mar. 31, 2021 JPY (¥) yr
Interest rate contracts | Option model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 35,195	¥ (12,841)
Interest rate contracts | 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 | Option model | Correlation between interest rates | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.629	0.619
Interest rate contracts | Option model | Correlation between interest rates | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.456	0.448
Interest rate contracts | 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	0.153	0.151
Interest rate contracts | 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 | 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	0.410	0.416
Interest rate contracts | Option model | Volatility | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0	0
Interest rate contracts | Option model | Volatility | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	1	1
Interest rate contracts | Option model | Volatility | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.619	0.650
Foreign exchange contracts | Option model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 7,463	¥ 7,283
Foreign exchange contracts | Option model | Correlation between interest rates | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.100	0.100
Foreign exchange contracts | 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 | Option model | Correlation between interest rates | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.515	0.510
Foreign exchange contracts | 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 | 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 | 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	0.374	0.389
Foreign exchange contracts | Option model | Volatility | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.090	0.095
Foreign exchange contracts | Option model | Volatility | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.217	0.221
Foreign exchange contracts | Option model | Volatility | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.133	0.137
Foreign exchange contracts | 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 | 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 | 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 | Discounted cash flow
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 22,648	¥ 5,557
Equity contracts | Discounted cash flow | Term of litigation
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs | yr	1.8
Equity contracts | Discounted cash flow | Term of litigation | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs | yr		0
Equity contracts | Discounted cash flow | Term of litigation | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs | yr		1.2
Equity contracts | Discounted cash flow | Term of litigation | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs | yr	1.8	0.6
Equity contracts | Option model
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Fair value	¥ 772	¥ 4,597
Equity contracts | Option model | Volatility | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.260	0.275
Equity contracts | Option model | Volatility | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.380	0.400
Equity contracts | Option model | Volatility | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.318	0.318
Equity contracts | 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 | 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 | 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	0.231	0.262
Equity contracts | Option model | Correlation between equities | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.024	0.150
Equity contracts | 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 | Option model | Correlation between equities | Median
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives—net, Significant unobservable inputs	0.514	0.540
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	¥ 17,297	¥ 16,718
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	0.002	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	0.005	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	0.700	0.900
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	0.644	0.669
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	0.100	0.080
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	¥ 98,325	¥ 89,607
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		0.043
Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities | Discounted cash flow | Probability of default | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.049
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		0.047
Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities | Discounted cash flow | Recovery rate | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	1	0.780
Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities | Discounted cash flow | Recovery rate | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.966
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	0.906
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	¥ 238,864	¥ 279,547
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	0.854	0.837
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	0.699	0.574
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	0.699	0.574
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	0.006	0.013
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	0.010	0.016
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	0.009	0.013
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	0.290	0.183
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	0.290	0.183
Other debt securities | Discounted cash flow
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 369,445	¥ 313,895
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	0.009	0.010
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	0.029
Other debt securities | Return on equity method
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	¥ 58,677	¥ 79,541
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
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	0.080	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	0.600	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	0.827	0.788
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	0.099	0.100

Fair Value (Carrying Value of A

Fair Value (Carrying Value of Assets Measured at Fair Value on Nonrecurring Basis by Level) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Goodwill	¥ 303,611	¥ 370,852	¥ 517,626
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	20,997	40,778
Loans	241,950	263,468
Loans held for sale	42,994	52,159
Collateral dependent loans	198,956	211,309
Premises and equipment	17,301	15,243
Intangible assets	359	2,421
Goodwill	0	132,976
Other assets	29,162	169,978
Investments in equity method investees	12,915	153,850
Other	16,247	16,128
Total	564,771	624,864
Fair Value, Measurements, Nonrecurring | Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held for sale	255,002	0
Assets held for sale	255,002	0
Fair Value, Measurements, Nonrecurring | Private equity funds
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities valued at net asset value	26,644	24,319
Unfunded commitments related to investment securities valued at net asset value	22,197	19,101
Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	0	0
Loans	2,175	2,667
Loans held for sale	0	0
Collateral dependent loans	2,175	2,667
Premises and equipment	0	0
Intangible assets	0	0
Goodwill	0	0
Other assets	11,880	111,626
Investments in equity method investees	11,880	111,626
Other	0	0
Total	14,055	114,293
Fair Value, Measurements, Nonrecurring | 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
Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	9,839	32,421
Loans	3,153	5,125
Loans held for sale	0	0
Collateral dependent loans	3,153	5,125
Premises and equipment	0	0
Intangible assets	0	0
Goodwill	0	0
Other assets	0	33,840
Investments in equity method investees	0	33,840
Other	0	0
Total	12,992	71,386
Fair Value, Measurements, Nonrecurring | 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
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	11,158	8,357
Loans	236,622	255,676
Loans held for sale	42,994	52,159
Collateral dependent loans	193,628	203,517
Premises and equipment	17,301	15,243
Intangible assets	359	2,421
Goodwill	0	132,976
Other assets	17,282	24,512
Investments in equity method investees	1,035	8,384
Other	16,247	16,128
Total	537,724	439,185
Fair Value, Measurements, Nonrecurring | 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	255,002	0
Assets held for sale	255,002	¥ 0
Fair Value, Measurements, Nonrecurring | 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)	¥ 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	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	¥ 78,416	¥ 390,013
Impairment of assets held for sale	134,141	0	¥ 0
Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	3,165	0
Disposal group, disposed of by sale, not discontinued operations | MUFG Union Bank
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Impairment of assets held for sale	134,141
Investment securities
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	1,232	(16,522)
Loans
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	30,638	116,849
Loans | Loans held for sale
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	1,893	959
Loans | Loans held for sale | Disposal group, disposed of by sale, not discontinued operations
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	3,165	0
Loans | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	28,745	115,890
Premises and equipment
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	5,701	11,548
Intangible assets
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	10,412	19,200
Goodwill
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	0	147,564
Other assets
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	27,268	111,374
Other assets | Investments in equity method investees
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	6,949	53,758
Loans held for sale
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	¥ 20,319	¥ 57,616

Fair Value (Gains (Losses) Rela

Fair Value (Gains (Losses) Related to Instruments for which Fair Value Option was Elected) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Financial liabilities:
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	¥ 55,634	¥ (4,961)	¥ (2,893)
Financial liabilities: | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	55,634	(4,961)	(2,893)
Financial liabilities: | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	0	0	0
Financial liabilities: | Other short-term borrowings
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	5,552	(6,484)	5,194
Financial liabilities: | Other short-term borrowings | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	5,552	(6,484)	5,194
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	0
Financial liabilities: | Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	50,082	1,523	(8,087)
Financial liabilities: | Long-term debt | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	50,082	1,523	(8,087)
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	0
Financial assets:
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	768,390	353,267	241,815
Financial assets: | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	(984,605)	(370,238)	837,832
Financial assets: | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	1,752,995	723,505	(596,017)
Financial assets: | Trading account securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	768,390	353,267	241,815
Financial assets: | Trading account securities | Trading account profits (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	(984,605)	(370,238)	837,832
Financial assets: | Trading account securities | Foreign exchange gains (losses)
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	¥ 1,752,995	¥ 723,505	¥ (596,017)

Fair Value (Differences between

Fair Value (Differences between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining aggregate contractual amounts outstanding, Financial liabilities	¥ 511,851	¥ 420,227
Fair value	483,051	402,823
Fair value over (under) remaining aggregate contractual amounts outstanding, Financial liabilities	(28,800)	(17,404)
Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining aggregate contractual amounts outstanding, Financial liabilities	511,851	420,227
Fair value	483,051	402,823
Fair value over (under) remaining aggregate contractual amounts outstanding, Financial liabilities	¥ (28,800)	¥ (17,404)

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 Millions	Mar. 31, 2022	Mar. 31, 2021
Financial liabilities:
Carrying amounts of investments in equity method investees	¥ 3,066,738	¥ 2,560,339
Carrying amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	50,972,000	49,977,000
Interest-earning deposits in other banks	58,848,000	53,347,000
Call loans and funds sold	1,316,000	1,256,000
Receivables under resale agreements	12,503,000	13,780,000
Receivables under securities borrowing transactions	4,496,000	3,370,000
Investment securities	4,595,000	3,904,000
Loans, net of allowance for credit losses	111,669,000	114,350,000
Other financial assets	9,207,000	8,108,000
Financial liabilities:
Non-interest-bearing	36,496,000	38,521,000
Interest-bearing	188,112,000	190,695,000
Total deposits	224,608,000	229,216,000
Call money and funds purchased	2,416,000	2,354,000
Payables under repurchase agreements	27,726,000	24,568,000
Payables under securities lending transactions	1,022,000	843,000
Due to trust account and other short-term borrowings	22,728,000	17,883,000
Long-term debt	34,245,000	34,773,000
Other financial liabilities	7,560,000	7,027,000
Carrying amounts of investments in equity method investees	3,067,000	2,560,000
Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	50,972,000	49,977,000
Interest-earning deposits in other banks	58,848,000	53,347,000
Call loans and funds sold	1,316,000	1,256,000
Receivables under resale agreements	12,503,000	13,780,000
Receivables under securities borrowing transactions	4,496,000	3,370,000
Investment securities	4,606,000	3,939,000
Loans, net of allowance for credit losses	112,391,000	115,709,000
Other financial assets	9,207,000	8,108,000
Financial liabilities:
Non-interest-bearing	36,496,000	38,521,000
Interest-bearing	188,080,000	190,712,000
Total deposits	224,576,000	229,233,000
Call money and funds purchased	2,416,000	2,354,000
Payables under repurchase agreements	27,726,000	24,568,000
Payables under securities lending transactions	1,022,000	843,000
Due to trust account and other short-term borrowings	22,728,000	17,883,000
Long-term debt	33,974,000	35,042,000
Other financial liabilities	7,560,000	7,027,000
Estimated fair value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	50,972,000	49,977,000
Interest-earning deposits in other banks	0	0
Call loans and funds sold	0	0
Receivables under resale agreements	0	0
Receivables under securities borrowing transactions	0	0
Investment securities	1,758,000	1,123,000
Loans, net of allowance for credit losses	2,000	3,000
Other financial assets	0	0
Financial liabilities:
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	58,848,000	53,347,000
Call loans and funds sold	1,316,000	1,256,000
Receivables under resale agreements	12,503,000	13,780,000
Receivables under securities borrowing transactions	4,496,000	3,370,000
Investment securities	460,000	780,000
Loans, net of allowance for credit losses	245,000	298,000
Other financial assets	9,207,000	8,108,000
Financial liabilities:
Non-interest-bearing	36,496,000	38,521,000
Interest-bearing	188,080,000	190,712,000
Total deposits	224,576,000	229,233,000
Call money and funds purchased	2,416,000	2,354,000
Payables under repurchase agreements	27,726,000	24,568,000
Payables under securities lending transactions	1,022,000	843,000
Due to trust account and other short-term borrowings	22,728,000	17,883,000
Long-term debt	33,974,000	35,042,000
Other financial liabilities	7,560,000	7,027,000
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	2,388,000	2,036,000
Loans, net of allowance for credit losses	112,144,000	115,408,000
Other financial assets	0	0
Financial liabilities:
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

Parent Company Only Financial_3

Parent Company Only Financial Information (Narrative) (Detail) - BK and TB - JPY (¥) ¥ in Billions	Mar. 31, 2022	Mar. 31, 2021
Companies Act
Parent Company Only Financial Information [Line Items]
Unrestricted amount of retained earnings that are in excess of the level required under the statutory reserve requirements	¥ 5,094	¥ 5,155
Banking Law and Related Regulations
Parent Company Only Financial Information [Line Items]
Percentage limitation of loans or credits to the parent company over the banking subsidiary's consolidated total capital	15%
Restricted amount of net assets of consolidated subsidiaries as to payment of cash dividends and loans to the parent company	¥ 5,662	¥ 6,007

Parent Company Only Financial_4

Parent Company Only Financial Information (Condensed Balance Sheets) (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Assets:
Total assets	¥ 367,650,018	¥ 353,824,625	¥ 331,753,283
Liabilities and Shareholders’ equity:
Total liabilities	351,353,496	337,580,071
Total shareholders’ equity	15,605,068	15,660,949
Total liabilities and equity	367,650,018	353,824,625
MUFG:
Assets:
Cash and interest-earning deposits with banking subsidiaries	231,389	229,380
Investments in subsidiaries and affiliated companies	16,504,756	16,658,522
Banking subsidiaries	11,731,745	12,793,367
Non-banking subsidiaries and affiliated companies	4,773,011	3,865,155
Loans to subsidiaries	10,062,030	9,208,439
Loans to subsidiaries, Banking subsidiaries	9,516,847	8,690,696
Loans to subsidiaries, Non-banking subsidiaries	545,183	517,743
Other assets	266,773	197,231
Total assets	27,064,948	26,293,572
Liabilities and Shareholders’ equity:
Short-term borrowings from banking subsidiaries	1,146,147	1,206,694
Long-term debt from non-banking subsidiaries and affiliated companies	24,535	15,897
Long-term debt	10,055,876	9,226,046
Other liabilities	233,322	183,986
Total liabilities	11,459,880	10,632,623
Total shareholders’ equity	15,605,068	15,660,949
Total liabilities and equity	¥ 27,064,948	¥ 26,293,572

Parent Company Only Financial_5

Parent Company Only Financial Information (Condensed Statements of Income) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Income:
Foreign exchange gains (losses)—net	¥ 106,868	¥ 99,337	¥ (281,790)
Trading account profits (losses)—net	(824,420)	(410,368)	765,373
Expense:
Operating expenses	2,827,500	2,770,900	2,799,100
Income (loss) before income tax expense (benefit)	(58,727)	1,608,342	433,220
Income tax expense (benefit)	(14,511)	444,948	114,505
Net income (loss) attributable to Mitsubishi UFJ Financial Group	(83,320)	1,117,298	305,955
MUFG:
Income:
Dividends from subsidiaries and affiliated companies	586,108	404,064	376,376
Banking subsidiaries	419,691	317,453	277,472
Non-banking subsidiaries and affiliated companies	166,417	86,611	98,904
Management fees from subsidiaries	34,957	35,095	33,543
Interest income from subsidiaries	183,679	174,816	174,500
Foreign exchange gains (losses)—net	6,851	1,089	4,834
Trading account profits (losses)—net	(4,059)	(18,285)	(37,272)
Gains on sales of investment in subsidiaries and affiliated companies—net	0	95	67,406
Other income	11,732	12,552	14,968
Total income	819,268	609,426	634,355
Expense:
Operating expenses	40,158	37,567	30,431
Interest expense to subsidiaries and affiliated companies	12,256	11,415	26,244
Interest expense	167,057	159,057	155,774
Other expense	7,154	8,164	15,024
Total expense	226,625	216,203	227,473
Equity in undistributed net income (loss) of subsidiaries and affiliated companies—net	(667,088)	727,257	(108,069)
Income (loss) before income tax expense (benefit)	(74,445)	1,120,480	298,813
Income tax expense (benefit)	8,875	3,182	(7,142)
Net income (loss) attributable to Mitsubishi UFJ Financial Group	¥ (83,320)	¥ 1,117,298	¥ 305,955

Parent Company Only Financial_6

Parent Company Only Financial Information (Condensed Statements of Cash Flows) (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income (loss)	¥ (83,320)	¥ 1,117,298	¥ 305,955
Net cash provided by (used in) operating activities	909,355	(245,067)	(1,355,900)
Cash flows from investing activities:
Other—net	(16,608)	(14,802)	(68,611)
Net cash provided by (used in) investing activities	236,835	3,657,359	(18,085,443)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	4,659,212	18,707,004	4,999,531
Repayment of long-term debt	(5,466,007)	(11,360,120)	(4,983,073)
Proceeds from sales of treasury stock	2,688	899	1,235
Payments for acquisition of treasury stock	(158,529)	(20)	(50,028)
Other—net	(385,778)	(22,566)	358,922
Net cash provided by financing activities	5,385,042	20,963,620	23,782,518
Net increase in cash and cash equivalents	7,782,754	24,773,199	3,978,523
Cash and cash equivalents at beginning of fiscal year	103,328,790	78,555,591	74,577,068
Cash and cash equivalents at end of fiscal year	111,111,544	103,328,790	78,555,591
MUFG:
Cash flows from operating activities:
Net income (loss)	(83,320)	1,117,298	305,955
Adjustments and other	653,768	(568,317)	(1,704)
Net cash provided by (used in) operating activities	570,448	548,981	304,251
Cash flows from investing activities:
Proceeds from redemption of other investment securities	0	0	240,000
Proceeds from sales of investment in subsidiaries and affiliated companies	136	35,081	135,581
Purchase of equity investment in subsidiaries and an affiliated company	(1,000)	0	0
Net increase in loans to subsidiaries	(257,619)	(462,208)	(1,547,178)
Other—net	(9,413)	(11,531)	(12,572)
Net cash provided by (used in) investing activities	(267,896)	(438,658)	(1,184,169)
Cash flows from financing activities:
Net decrease in short-term borrowings from subsidiaries	(61,415)	(49,058)	(164,272)
Proceeds from issuance of long-term debt	1,625,173	831,121	1,844,488
Repayment of long-term debt	(1,369,254)	(514,436)	(214,994)
Repayment of long-term debt to affiliated companies	0	(10,500)	(241,000)
Proceeds from sales of treasury stock	0	1	2
Payments for acquisition of treasury stock	(150,017)	(13)	(50,022)
Dividends paid	(334,620)	(321,772)	(304,538)
Other—net	(10,410)	(1,954)	(7,791)
Net cash provided by financing activities	(300,543)	(66,611)	861,873
Net increase in cash and cash equivalents	2,009	43,712	(18,045)
Cash and cash equivalents at beginning of fiscal year	229,380	185,668	203,713
Cash and cash equivalents at end of fiscal year	¥ 231,389	¥ 229,380	¥ 185,668

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Detail) - Subsequent Event - JPY (¥) ¥ / shares in Units, ¥ in Millions		1 Months Ended
	May 16, 2022	Jun. 30, 2022	Jun. 29, 2022
Subsequent Event [Line Items]
Aggregated number of shares allowed for repurchase (in shares)	600,000,000
Aggregate amount of shares allowed for repurchase	¥ 300,000
Number of own shares repurchased (in shares)		105,461,600
Treasury Stock, Value, Acquired, Cost Method		¥ 77,753
Common stock
Subsequent Event [Line Items]
Dividends payable (in JPY per share)			¥ 14.5
Dividends payable, total amount			¥ 183,397
Shares authorized to be repurchased as % of total shares outstanding	4.70%