Mitsubishi UFJ Financial (MUFG) 6-K 27 Jan 20 Current report (foreign) Financial data

Cover Page

Cover Page	6 Months Ended
	Sep. 30, 2019
Cover [Abstract]
Document Type	6-K
Document Period End Date	Sep. 30, 2019
Amendment Flag	false
Entity Registrant Name	MITSUBISHI UFJ FINANCIAL GROUP, INC.
Current Fiscal Year End Date	--03-31
Entity Central Index Key	0000067088

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019
ASSETS
Cash and due from banks		¥ 34,248,338	¥ 33,924,340
Interest-earning deposits in other banks		39,079,835	40,646,920
Cash, due from banks and interest-earning deposits in other banks		73,328,173	74,571,260
Call loans, funds sold, and receivables under resale agreements		17,294,840	12,084,735
Receivables under securities borrowing transactions		2,873,750	2,758,573
Trading account assets (including assets pledged that secured parties are permitted to sell or repledge of ¥7,512,025 and ¥5,244,371 at March 31, 2019 and September 30, 2019) (including ¥18,597,303 and ¥18,719,078 at March 31, 2019 and September 30, 2019 measured at fair value under fair value option)		43,575,119	40,576,618
Investment securities:
Available-for-sale debt securities (including assets pledged that secured parties are permitted to sell or repledge of ¥6,981,664 and ¥4,647,112 at March 31, 2019 and September 30, 2019)		31,647,120	33,518,503
Held-to-maturity debt securities (including assets pledged that secured parties are permitted to sell or repledge of ¥160,828 and ¥130,777 at March 31, 2019 and September 30, 2019) (fair value of ¥4,452,947 and ¥4,257,509 at March 31, 2019 and September 30, 2019)		4,219,827	4,441,901
Equity securities (including assets pledged that secured parties are permitted to sell or repledge of ¥1,364 and ¥1,889 at March 31, 2019 and September 30, 2019) (including ¥6,413,867 and ¥6,192,613 at March 31, 2019 and September 30, 2019 measured at fair value)		6,893,247	6,977,600
Total investment securities		42,760,194	44,938,004
Loans, net of unearned income, unamortized premiums and deferred loan fees (including assets pledged that secured parties are permitted to sell or repledge of ¥802,185 and ¥683,673 at March 31, 2019 and September 30, 2019)	[1]	115,263,410	116,883,941
Allowance for credit losses		(690,673)	(658,184)
Net loans		114,572,737	116,225,757
Premises and equipment—net		940,681	973,600
Customers' acceptance liability		250,776	247,996
Intangible assets—net		1,201,401	927,196
Goodwill		616,620	433,891
Other assets		11,965,815	11,491,269
Total assets		309,380,106	305,228,899
LIABILITIES AND EQUITY
Deposits: Domestic offices, Non-interest-bearing		25,582,593	25,222,218
Deposits: Domestic offices, Interest-bearing		124,092,317	124,859,036
Deposits: Overseas offices, principally interest-bearing		48,503,832	49,199,535
Total deposits		198,178,742	199,280,789
Call money, funds purchased, and payables under repurchase agreements		28,912,405	27,674,952
Payables under securities lending transactions		1,111,362	913,087
Due to trust account and other short-term borrowings (including ¥289,755 and ¥300,196 at March 31, 2019 and September 30, 2019 measured at fair value under fair value option)		10,381,757	9,467,025
Trading account liabilities		14,678,972	13,009,492
Bank acceptances outstanding		250,776	247,996
Long-term debt (including ¥325,808 and ¥299,768 at March 31, 2019 and September 30, 2019 measured at fair value under fair value option)		27,649,456	27,990,543
Other liabilities		11,686,597	10,660,267
Total liabilities		292,850,067	289,244,151
Commitments and contingent liabilities
Mitsubishi UFJ Financial Group shareholders' equity:
Capital stock—common stock authorized, 33,000,000,000 shares; common stock issued, 13,667,770,520 shares and 13,667,770,520 shares at March 31, 2019 and September 30, 2019, with no stated value		2,090,270	2,090,270
Capital surplus		5,580,795	5,577,186
Retained earnings:
Appropriated for legal reserve		239,571	239,571
Unappropriated retained earnings		8,553,535	8,094,026
Accumulated other comprehensive income, net of taxes		(404,141)	(284,269)
Treasury stock, at cost—745,921,774 common shares and 742,091,586 common shares at March 31, 2019 and September 30, 2019		(514,765)	(517,236)
Total Mitsubishi UFJ Financial Group shareholders' equity		15,545,265	15,199,548
Noncontrolling interests		984,774	785,200
Total equity		16,530,039	15,984,748
Total liabilities and equity		309,380,106	305,228,899
Consolidated VIEs [Member]
ASSETS
Cash and due from banks		35	7
Interest-earning deposits in other banks		26,572	23,655
Trading account assets (including assets pledged that secured parties are permitted to sell or repledge of ¥7,512,025 and ¥5,244,371 at March 31, 2019 and September 30, 2019) (including ¥18,597,303 and ¥18,719,078 at March 31, 2019 and September 30, 2019 measured at fair value under fair value option)		789,650	528,690
Investment securities:
Total investment securities		1,775,175	1,828,194
Net loans		16,456,854	15,545,328
All other assets		387,508	294,212
Total assets		19,435,794	18,220,086
LIABILITIES AND EQUITY
Total deposits
Other short-term borrowings		34,721	20,535
Long-term debt (including ¥325,808 and ¥299,768 at March 31, 2019 and September 30, 2019 measured at fair value under fair value option)		472,532	490,033
All other liabilities		84,856	62,146
Total liabilities		¥ 592,109	¥ 572,714
[1]	The above table includes loans held for sale of ¥291,794 million at March 31, 2019 and ¥393,781 million at September 30, 2019, respectively.

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - JPY (¥) ¥ in Millions	Sep. 30, 2019	Mar. 31, 2019
Statement of Financial Position [Abstract]
Trading account assets pledged that secured parties are permitted to sell or repledge	¥ 5,244,371	¥ 7,512,025
Trading account assets measured at fair value under fair value option	18,719,078	18,597,303
Available-for-sale debt securities pledged that secured parties are permitted to sell or repledge	4,647,112	6,981,664
Held-to-maturity debt securities pledged that secured parties are permitted to sell or repledge	130,777	160,828
Held-to-maturity debt securities, Fair value	4,257,509	4,452,947
Equity securities pledged that secured parties are permitted to sell or repledge	1,889	1,364
Equity securities measured at fair value	6,192,613	6,413,867
Loans, net of unearned income, unamortized premiums and deferred loan fees, pledged that secured parties are permitted to sell or repledge	683,673	802,185
Due to trust account and other short-term borrowings measured at fair value under fair value option	300,196	289,755
Long-term debt measured at fair value under fair value option	¥ 299,768	¥ 325,808
Common stock, authorized	33,000,000,000	33,000,000,000
Common stock, issued	13,667,770,520	13,667,770,520
Common stock, stated value
Treasury stock, shares	742,091,586	745,921,774

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - JPY (¥) shares in Thousands, ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Interest income:
Loans, including fees		¥ 1,322,361	¥ 1,236,933
Deposits in other banks		95,288	83,569
Investment securities		223,367	201,580
Trading account assets		251,891	233,857
Call loans, funds sold, and receivables under resale agreements and securities borrowing transactions		127,604	62,959
Total		2,020,511	1,818,898
Interest expense:
Deposits		439,708	323,884
Call money, funds purchased, and payables under repurchase agreements and securities lending transactions		187,285	142,906
Due to trust account, other short-term borrowings and trading account liabilities		89,447	73,942
Long-term debt		166,318	145,113
Total		882,758	685,845
Net interest income		1,137,753	1,133,053
Provision for (reversal of) credit losses		102,121	(71,060)
Net interest income after provision for (reversal of) credit losses		1,035,632	1,204,113
Non-interest income:
Fees and commissions income		698,463	705,438
Foreign exchange losses—net		(108,687)	(99,407)
Trading account profits (losses)—net		547,299	(332,431)
Investment securities gains—net	[1]	11,654	422,998
Equity in earnings of equity method investees—net		165,487	140,014
Gain on remeasurement of previously held equity method investment		41,218
Other non-interest income		73,729	63,078
Total		1,429,163	899,690
Non-interest expense:
Salaries and employee benefits		591,594	577,915
Occupancy expenses—net		87,768	88,484
Fees and commissions expenses		160,619	155,522
Outsourcing expenses, including data processing		147,839	137,912
Depreciation of premises and equipment		62,395	44,664
Amortization of intangible assets		114,748	114,484
Impairment of intangible assets		2,334	667
Insurance premiums, including deposit insurance		48,220	46,696
Communications		29,582	29,557
Taxes and public charges		46,766	51,786
Impairment of goodwill		241,356
Provision for (reversal of) off-balance sheet credit instruments		(63,342)	42,151
Other non-interest expenses		156,424	118,198
Total		1,626,303	1,408,036
Income before income tax expense		838,492	695,767
Income tax expense		221,171	143,212
Net income before attribution of noncontrolling interests		617,321	552,555
Net income (loss) attributable to noncontrolling interests		779	(696)
Net income attributable to Mitsubishi UFJ Financial Group		616,542	553,251
Income used for the computation of basic EPS and diluted EPS (Numerator):
Net income attributable to Mitsubishi UFJ Financial Group		616,542	553,251
Effect of dilutive instruments:
Restricted stock units and performance stock units	[2]	(1,460)	(1,962)
Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group and assumed conversions		¥ 615,082	¥ 551,289
Shares used for the computation of basic EPS and diluted EPS (Denominator):
Weighted average common shares outstanding		12,938,860	13,123,663
Effect of dilutive instruments:
Stock acquisition rights	[2]	167	484
Weighted average common shares for diluted computation		12,939,027	13,124,147
Earnings per common share applicable to common shareholders of Mitsubishi UFJ Financial Group
Basic earnings per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group		¥ 47.65	¥ 42.16
Diluted earnings per common share—Earnings applicable to common shareholders of Mitsubishi UFJ Financial Group	[2]	47.54	42.01
Cash dividend per common share		¥ 11	¥ 10
[1]	The following credit losses are included in Investment securities gains—net: Decline in fair value by ¥81 million and ¥582 million; Other comprehensive income—net by ¥4 million and ¥79 million; Total credit losses by ¥85 million and ¥661 million, for the six months ended September 30, 2018 and 2019, respectively.
[2]	For the six months ended September 30, 2018, the performance-based plan under the Board Incentive Plan could potentially dilute earnings per common share but were not included in the computation of diluted earnings per common share due to their antidilutive effects.

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Income (Unaudited) (Parenthetical) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Decline in fair value	¥ 582	¥ 81
Other comprehensive income—net	79	4
Total credit losses	¥ 661	¥ 85

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income before attribution of noncontrolling interests	¥ 617,321	¥ 552,555
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on investment securities	91,456	(74,345)
Net debt valuation adjustments	850	(2,226)
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges	9,130	(6,843)
Defined benefit plans	(8,373)	16,495
Foreign currency translation adjustments	(200,618)	25,649
Total	(107,555)	(41,270)
Comprehensive income	509,766	511,285
Net income (loss) attributable to noncontrolling interests	779	(696)
Other comprehensive income attributable to noncontrolling interests	12,317	6,043
Comprehensive income attributable to Mitsubishi UFJ Financial Group	¥ 496,670	¥ 505,938

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Equity (Unaudited) - JPY (¥) ¥ in Millions	Total	Mitsubishi UFJ Financial Group Shareholders' Equity [Member]	Mitsubishi UFJ Financial Group Shareholders' Equity [Member]Capital Stock [Member]	Mitsubishi UFJ Financial Group Shareholders' Equity [Member]Capital Surplus [Member]	Mitsubishi UFJ Financial Group Shareholders' Equity [Member]Retained Earnings Appropriated for Legal Reserve [Member]	Mitsubishi UFJ Financial Group Shareholders' Equity [Member]Unappropriated Retained Earnings [Member]	Mitsubishi UFJ Financial Group Shareholders' Equity [Member]Accumulated Other Comprehensive Income (Loss), Net of Taxes [Member]	Mitsubishi UFJ Financial Group Shareholders' Equity [Member]Treasury Stock, at Cost [Member]	Noncontrolling Interests [Member]
Balance at beginning of period at Mar. 31, 2018			¥ 2,090,270	¥ 5,740,165	¥ 239,571	¥ 4,945,733	¥ 2,477,315	¥ (522,872)	¥ 675,633
Stock-based compensation				(3,247)
Net income attributable to Mitsubishi UFJ Financial Group	¥ 553,251					553,251
Cash dividends: Common stock—¥10.00 per share and ¥11.00 per share in 2018 and 2019						(131,634)
Purchases of shares of treasury stock								(60,721)
Sales of shares of treasury stock								3,730
Retirement of common stock				(51,527)				51,527
Net decrease resulting from changes in interests in consolidated subsidiaries, consolidated VIEs, and affiliated companies								65
Initial subscriptions of noncontrolling interests									8,682
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders									7,186
Decrease in noncontrolling interests related to deconsolidation of subsidiaries									(21,213)
Net income (loss) attributable to noncontrolling interests	(696)								(696)
Dividends paid to noncontrolling interests									(12,176)
Other comprehensive income, net of taxes	(41,270)						(47,313)		6,043
Other—net				36					47
Balance at end of period at Sep. 30, 2018	15,949,639	¥ 15,286,133	2,090,270	5,685,427	239,571	8,071,376	(272,240)	(528,271)	663,506
Effect of adopting new guidance | Recognition and Measurement of Financial Assets and Financial Liabilities [Member]						2,702,242	(2,702,242)
Effect of adopting new guidance | Recognition of Breakage for Certain Prepaid Stored-Value Products [Member]						1,784
Balance at beginning of period at Mar. 31, 2019	15,984,748		2,090,270	5,577,186	239,571	8,094,026	(284,269)	(517,236)	785,200
Stock-based compensation				(2,485)
Net income attributable to Mitsubishi UFJ Financial Group	616,542					616,542
Cash dividends: Common stock—¥10.00 per share and ¥11.00 per share in 2018 and 2019						(142,150)
Purchases of shares of treasury stock								(21)
Sales of shares of treasury stock								2,449
Net decrease resulting from changes in interests in consolidated subsidiaries, consolidated VIEs, and affiliated companies								43
Initial subscriptions of noncontrolling interests									84,095
Transactions between the consolidated subsidiaries and the related noncontrolling interest shareholders									115,025
Decrease in noncontrolling interests related to deconsolidation of subsidiaries									(1,880)
Net income (loss) attributable to noncontrolling interests	779								779
Dividends paid to noncontrolling interests									(7,469)
Other comprehensive income, net of taxes	(107,555)						(119,872)		12,317
Other—net				6,094					(3,293)
Balance at end of period at Sep. 30, 2019	¥ 16,530,039	¥ 15,545,265	¥ 2,090,270	¥ 5,580,795	¥ 239,571	8,553,535	¥ (404,141)	¥ (514,765)	¥ 984,774
Effect of adopting new guidance | Leases [Member]						¥ (14,883)

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Equity (Unaudited) (Parenthetical) - ¥ / shares	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash dividends: Common stock, per share	¥ 11	¥ 10
Mitsubishi UFJ Financial Group Shareholders' Equity [Member] | Unappropriated Retained Earnings [Member]
Cash dividends: Common stock, per share	¥ 11	¥ 10

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows (Unaudited) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income before attribution of noncontrolling interests		¥ 617,321	¥ 552,555
Adjustments to reconcile net income before attribution of noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization		177,143	159,148
Impairment of goodwill		241,356
Impairment of intangible assets		2,334	667
Provision for (reversal of) credit losses		102,121	(71,060)
Investment securities gains—net	[1]	(11,654)	(422,998)
Foreign exchange losses—net		296,321	360,395
Equity in earnings of equity method investees—net		(165,487)	(140,014)
Provision for deferred income tax expense		117,448	68,680
Decrease (increase) in trading account assets, excluding foreign exchange contracts		(3,826,916)	73,602
Increase (decrease) in trading account liabilities, excluding foreign exchange contracts		2,235,832	(493,461)
Increase in collateral for derivative transactions		(16,491)	(546,434)
Increase in cash collateral for the use of Bank of Japan's settlement infrastructure		(54,018)	(60,462)
Other—net		(384,432)	(206,574)
Net cash used in operating activities		(669,122)	(725,956)
Cash flows from investing activities:
Proceeds from sales and maturities of Available-for-sale debt securities (including proceeds from sales of debt securities under the fair value option)		41,728,624	29,447,103
Purchases of Available-for-sale debt securities (including purchases of debt securities under the fair value option)		(39,378,784)	(27,222,037)
Proceeds from maturities of Held-to-maturity debt securities		326,466	377,310
Purchases of Held-to-maturity debt securities		(192,438)	(723,414)
Proceeds from sales and redemption of Equity securities (including proceeds from equity securities under the fair value option)		1,442,025	1,069,888
Purchases of Equity securities (including purchases of equity securities under the fair value option)		(1,627,850)	(1,264,444)
Purchase of common stock in Bank Danamon, an equity method investee of BK			(132,335)
Acquisition of Bank Danamon, a subsidiary of BK, net of cash acquired		(243,597)
Acquisition of FSI (formerly, Colonial First State Global Asset Management), subsidiaries of TB, net of cash acquired		(249,354)
Net decrease in loans		789,756	507,521
Net decrease (increase) in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions		(5,542,176)	289,196
Capital expenditures for premises and equipment		(47,119)	(60,694)
Purchases of intangible assets		(157,965)	(135,962)
Proceeds from sales of consolidated VIEs and subsidiaries—net		29,057	51,775
Other—net		91,756	58,278
Net cash provided by (used in) investing activities		(3,031,599)	2,262,185
Cash flows from financing activities:
Net increase (decrease) in deposits		17,803	(3,513,570)
Net increase in call money, funds purchased, and payables under repurchase agreements and securities lending transactions		1,958,302	583,900
Net increase (decrease) in due to trust account and other short-term borrowings		1,060,876	(135,693)
Proceeds from issuance of long-term debt		2,194,947	2,767,744
Repayments of long-term debt		(2,425,134)	(2,295,485)
Proceeds from sales of treasury stock		1,061	2,270
Dividends paid		(142,143)	(131,654)
Payments for acquisition of treasury stock		(21)	(59,640)
Other—net		205,134	(32,406)
Net cash provided by (used in) financing activities		2,870,825	(2,814,534)
Effect of exchange rate changes on cash and cash equivalents		(410,876)	233,918
Net decrease in cash and cash equivalents		(1,240,772)	(1,044,387)
Cash and cash equivalents at beginning of period		74,577,068	75,873,456
Cash and cash equivalents: Cash, due from banks and interest-earning deposits in other banks		73,328,173	74,820,970
Cash and cash equivalents: Restricted cash included in other assets		8,123	8,099
Cash and cash equivalents at end of period		73,336,296	74,829,069
Cash paid during the period for:
Interest		893,453	658,461
Income taxes, net of refunds		(17,473)	153,902
Non-cash investing and financing activities:
Assets acquired under finance lease arrangements		9,981	¥ 2,733
Assets acquired under operating lease arrangements		19,490
Acquisition of Bank Danamon, a subsidiary of BK (Note 2):
Fair value of assets acquired, excluding cash and cash equivalents		1,811,160
Fair value of liabilities assumed		1,242,115
Fair value of noncontrolling interests		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		336,030
Fair value of liabilities assumed		¥ 71,716
[1]	The following credit losses are included in Investment securities gains—net: Decline in fair value by ¥81 million and ¥582 million; Other comprehensive income—net by ¥4 million and ¥79 million; Total credit losses by ¥85 million and ¥661 million, for the six months ended September 30, 2018 and 2019, respectively.

Basis of Semiannual Condensed C

Basis of Semiannual Condensed Consolidated Financial Statements [Text Block]	6 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Basis of Semiannual Condensed Consolidated Financial Statements [Text Block]	1. BASIS OF SEMIANNUAL CONDENSED CONSOLIDATED FINANCIAL STATEMENTS Description of Business Mitsubishi UFJ Financial Group, Inc. (“MUFG”) is a holding company for MUFG Bank, Ltd. (formerly, The Bank of Tokyo-Mitsubishi UFJ, 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 18 for more information by business segment. Basis of Financial Statements The accompanying semiannual condensed consolidated financial statements are presented in Japanese yen, the currency of the country in which MUFG is incorporated and principally operates. The accompanying condensed consolidated financial statements include the accounts of MUFG, its subsidiaries and certain variable interest entities (“VIE”s) (together, the “MUFG Group”), and reflect all adjustments (consisting of normal recurring adjustments) that, in the opinion of management, are necessary to conform with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements for the fiscal year ended March 31, 2019. Certain information that would be included in annual financial statements but is not required for semiannual reporting purposes under U.S. GAAP has been omitted or condensed. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Accounting Changes Disclosure Framework Changes to the Disclosure Requirements for Fair Value Measurement Leases— the FASB issued new guidance which requires that lessees recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use The MUFG Group adopted this guidance on April 1, 2019 and recorded ¥428 b right-of-use b of lease liabilities on the MUFG Group’s consolidated balance sheet. T Premium Amortization on Purchased Callable Debt Securities Targeted Improvements to Accounting for Hedging Activities Improvements to Nonemployee Share-Based Payment Accounting Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes Simplifying the Test for Goodwill Impairment disclosure of the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. This guidance is effective for its annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The MUFG Group early adopted this guidance in connection with an interim quantitative impairment test of goodwill during the six months ended September 30, 2019. Under this guidance, the quantitative impairment test is performed by comparing the carrying amount of a reporting unit with its fair value, and 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. See Note 5 for details of the goodwill impairment. Recently Issued Accounting Pronouncements Measurement of Credit Losses on Financial Instruments available-for-sale 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. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The MUFG Group is continuing to evaluate what effect the guidance above will have on its consolidated financial statements, related disclosures and internal controls. The MUFG Group’s implementation efforts include assessing the impact, developing and refining credit forecasting models and processes. Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract— internal-use internal-use internal-use capitalized-implementation-cost-related

Business Developments _Text Blo

Business Developments [Text Block]	6 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Business Developments [Text Block]	2. 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) (1) Available-for-sale 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) IDR 17,187 billion (approximately ¥132.3 billion (2) 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) in cash , none of which is deductible for income tax purpos es m profits non-interest (3) On May 1, 2019, MUFG Bank made BNP merged 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 weighted average amortization period of 13.2 79,552 customer s with weighted average amortiz a period of 13.1 years 44,140 10.1 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. Pro forma statements of income The following unaudited pro forma statements of income present the result of operations as if the acquisition of Danamon had occurred on April 1, 2018: Six months ended 2018 2019 (in millions) Statement of income data: Net interest income ¥ 68,378 ¥ 61,073 Non-interest 13,837 14,387 Net income attributable to Mitsubishi UFJ Financial Group 8,058 7,420 The unaudited pro forma statements of income include the pro forma adjustments to reflect the impact of amortizing certain acquisition accounting adjustments such as intangible assets subject to amortization of ¥5,796 million and ¥5,723 million for the six months ended September 30, 2018 and 2019, respectively. Acquisition of Colonial First State Global Asset Management On August 2, 2019, Mitsubishi UFJ Trust and Banking acquired 100% of the shares in each nine subsidiaries of Colonial First State Group Limited, for ¥297,217 million in cash, and recognized additional liabilities of ¥14,960 million, with pending purchase price adjustments, from Australian financial group Commonwealth Bank of Australia and its wholly-owned subsidiary, Colonial First State Group Limited, and thereby provisionally recorded goodwill of ¥ million, none of which is deductible for income tax purposes and intangible assets of ¥ million with weighted average amortization period of 18.8 years primarily include ¥97,117 million of customer relationships with 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. There were no 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. These fair value estimates are considered provisional and are subject to change pending the receipt of additional information relative to closing date fair values, but not to exceed a period of one year after the closing date of the acquisition. During the six months ended September 30, 2019, the MUFG Group incurred ¥3,744 million of acquisition-related costs. These expenses are included in Other non-interest expenses in the accompanying condensed consolidated statements of income for the six months ended September 30, 2019. Total assets acquired amounted to ¥194,012 million, including cash and bank deposits of ¥42,019 million and intangible assets of ¥102,315 million, and total liabilities assumed amounted to ¥45,418 million, including accrued bonuses of ¥20,958 million. Pro forma statements of income The following unaudited pro forma statements of income present the results of operations as if the acquisition of FSI had occurred on April 1, 2018: Six months ended 2018 2019 (in millions) Statement of income data: Non-interest ¥ 42,222 ¥ 35,294 Net income attributable to Mitsubishi UFJ Financial Group 9,375 7,479 The unaudited pro forma statements of income include the pro forma adjustments to reflect the impact of amortizing certain acquisition accounting adjustments relating to Acquisition of DVB Bank SE’s Aviation Finance Division On March 1, 2019, MUFG Bank and its consolidated subsidiary, BOT Lease Co., Ltd. (“BOT Lease”), entered into an agreement with DVB Bank SE (“DVB”) to transfer DVB’s aviation finance division to MUFG Bank and BOT Lease, subject to applicable regulatory and other approvals and certain conditions. Under the agreement, the entire aviation finance client lending portfolio, employees, and other parts of the operating infrastructure will be transferred to MUFG Bank. In addition, DVB’s aviation investment management and asset management businesses will be transferred to a newly established subsidiary of 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.

Investment Securities _Text Blo

Investment Securities [Text Block]	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Investment Securities [Text Block]	3. INVESTMENT SECURITIES The following tables present the amortized cost, gross unrealized gains and losses, and fair value of Available-for-sale Held-to-maturity At March 31, 2019: Amortized Gross Gross Fair value (in millions) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 23,748,558 ¥ 330,115 ¥ 977 ¥ 24,077,696 Japanese prefectural and municipal bonds 2,203,978 22,593 5 2,226,566 Foreign government and official institution bonds 2,648,874 18,099 25,554 2,641,419 Corporate bonds 1,117,302 14,251 822 1,130,731 Residential mortgage-backed securities 1,635,220 1,469 21,338 1,615,351 Commercial mortgage-backed securities 132,996 310 2,351 130,955 Asset-backed securities 1,494,629 10,846 2,553 1,502,922 Other debt securities (1) 192,930 2,851 2,918 192,863 Total ¥ 33,174,487 ¥ 400,534 ¥ 56,518 ¥ 33,518,503 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 1,100,701 ¥ 41,619 ¥ — ¥ 1,142,320 Foreign government and official institution bonds 138,731 193 212 138,712 Residential mortgage-backed securities 910,990 1,209 21,202 (2) 890,997 Commercial mortgage-backed securities 160,267 1,903 2,032 (2) 160,138 Asset-backed securities 2,131,212 1,415 11,847 2,120,780 Total ¥ 4,441,901 ¥ 46,339 ¥ 35,293 ¥ 4,452,947 Notes: (1) Other debt securities in the table above mainly include ¥ 112,822 (2) MUFG Americas Holdings Corporation (“MUFG Americas Holdings” or “MUAH”) reclassified residential mortgage-backed securities and commercial mortgage-backed securities from Available-for-sale Held-to-maturity 10,591 4,667 At September 30, 2019: Amortized Gross Gross Fair value (in millions) Available-for-sale Japanese national government and Japanese government agency bonds ¥ 21,345,842 ¥ 360,037 ¥ 11,051 ¥ 21,694,828 Japanese prefectural and municipal bonds 2,537,868 22,897 251 2,560,514 Foreign government and official institution bonds 2,660,491 45,464 3,594 2,702,361 Corporate bonds 1,203,227 14,818 333 1,217,712 Residential mortgage-backed securities 1,655,995 7,473 5,565 1,657,903 Commercial mortgage-backed securities 162,997 5,330 13 168,314 Asset-backed securities 1,483,711 10,036 1,044 1,492,703 Other debt securities (1) 151,507 3,152 1,874 152,785 Total ¥ 31,201,638 ¥ 469,207 ¥ 23,725 ¥ 31,647,120 Held-to-maturity Japanese national government and Japanese government agency bonds ¥ 1,100,638 ¥ 46,492 ¥ — ¥ 1,147,130 Foreign government and official institution bonds 97,068 144 377 96,835 Residential mortgage-backed securities 830,192 10,169 3,386 (2) 836,975 Commercial mortgage-backed securities 140,589 3,459 792 (2) 143,256 Asset-backed securities 2,051,340 1,611 19,638 2,033,313 Total ¥ 4,219,827 ¥ 61,875 ¥ 24,193 ¥ 4,257,509 Notes: (1) Other debt securities in the table above mainly include ¥ 87,626 (2) MUFG Americas Holdings reclassified residential mortgage-backed securities and commercial mortgage-backed securities from Available-for-sale Held-to-maturity 9,500 3,708 Contractual Maturities The amortized cost and fair values of Held-to-maturity Available-for-sale Held-to-maturity Available-for-sale Amortized Fair value Fair value (in millions) Due in one year or less ¥ 53,532 ¥ 53,593 ¥ 13,671,457 Due from one year to five years 916,865 954,658 7,024,193 Due from five years to ten years 874,560 882,891 5,174,748 Due after ten years 2,374,870 2,366,367 5,776,722 Total ¥ 4,219,827 ¥ 4,257,509 ¥ 31,647,120 Realized Gains and Losses For the six months ended September 30, 2018 and 2019, gross realized gains on sales of Available-for-sale Available-for-sale Other-than-temporary Impairments of Investment Securities For the six months ended September 30, 2018 and 2019, losses resulting from impairment of investment securities to reflect the decline in value considered to be other-than-temporary were ¥85 million and ¥661 million, respectively, which were included in Investment securities gains—net in the accompanying condensed consolidated statements of income. These losses were recorded from Available-for-sale debt securities which mainly comprised of corporate bonds for the six months ended September 30, 2018 and 2019. Gross Unrealized Losses and Fair Value The following tables show the gross unrealized losses and fair value of Available-for-sale Held-to-maturity Less than 12 months 12 months or more Total At March 31, 2019: Fair value Gross Fair value Gross Fair value Gross Number of (in millions, except number of securities) Available-for-sale Japanese national government and Japanese government agency bonds ¥ 4,149,302 ¥ 976 ¥ 5,599 ¥ 1 ¥ 4,154,901 ¥ 977 39 Japanese prefectural and municipal bonds 12,772 5 — — 12,772 5 4 Foreign government and official institution bonds 397,718 1,125 1,160,671 24,429 1,558,389 25,554 179 Corporate bonds 163,615 776 79,758 46 243,373 822 92 Residential mortgage-backed securities 316,942 1,757 648,353 19,581 965,295 21,338 536 Commercial mortgage-backed securities 42,126 678 57,167 1,673 99,293 2,351 104 Asset-backed securities 164,738 2,553 — — 164,738 2,553 87 Other debt securities 77,660 549 37,027 2,369 114,687 2,918 38 Total ¥ 5,324,873 ¥ 8,419 ¥ 1,988,575 ¥ 48,099 ¥ 7,313,448 ¥ 56,518 1,079 Held-to-maturity Foreign government and official institution bonds ¥ — ¥ — ¥ 55,084 ¥ 212 ¥ 55,084 ¥ 212 10 Residential mortgage-backed securities 74,180 1,199 798,165 20,003 872,345 21,202 457 Commercial mortgage-backed securities 3,154 37 155,011 1,995 158,165 2,032 32 Asset-backed securities 1,423,048 10,196 241,233 1,651 1,664,281 11,847 102 Total ¥ 1,500,382 ¥ 11,432 ¥ 1,249,493 ¥ 23,861 ¥ 2,749,875 ¥ 35,293 601 Less than 12 months 12 months or more Total At September 30, 2019: Fair value Gross Fair value Gross Fair value Gross Number of (in millions, except number of securities) Available-for-sale Japanese national government and Japanese ¥ 3,144,915 ¥ 11,051 ¥ — ¥ — ¥ 3,144,915 ¥ 11,051 29 Japanese prefectural and municipal bonds 140,429 251 — — 140,429 251 47 Foreign government and official institution bonds 271,032 152 488,282 3,442 759,314 3,594 95 Corporate bonds 80,808 332 6,982 1 87,790 333 45 Residential mortgage-backed securities 127,244 631 440,122 4,934 567,366 5,565 423 Commercial mortgage-backed securities 3,411 3 3,523 10 6,934 13 10 Asset-backed securities 118,876 750 28,296 294 147,172 1,044 80 Other debt securities 35,829 23 31,929 1,851 67,758 1,874 22 Total ¥ 3,922,544 ¥ 13,193 ¥ 999,134 ¥ 10,532 ¥ 4,921,678 ¥ 23,725 751 Held-to-maturity Foreign government and official institution bonds ¥ 33,013 ¥ 360 ¥ 26,901 ¥ 17 ¥ 59,914 ¥ 377 12 Residential mortgage-backed securities 103,117 14 625,441 3,372 728,558 3,386 394 Commercial mortgage-backed securities — — 138,479 792 138,479 792 30 Asset-backed securities 1,409,643 16,083 323,507 3,555 1,733,150 19,638 70 Total ¥ 1,545,773 ¥ 16,457 ¥ 1,114,328 ¥ 7,736 ¥ 2,660,101 ¥ 24,193 506 Evaluating Investment Securities for Other-than-temporary Impairments The following describes the nature of the MUFG Group’s investments and the conclusions reached in determining whether the unrealized losses were temporary or other-than-temporary. Corporate bonds As of September 30, 2019, unrealized losses associated with corporate bonds were primarily related to private placement bonds issued by Japanese non-public The following table presents a roll-forward of the credit loss component recognized in earnings. The balance at the beginning of each period for the six months ended September 30 represents the credit loss component for which other-than-temporary impairment (“OTTI”) occurred on debt securities in prior periods. The additions represent the first time a debt security was credit impaired or when subsequent credit impairment has occurred. The credit loss component is reduced when the corporate bonds mature or are sold. Six months ended 2018 2019 (in millions) Balance at beginning of period ¥ 3,498 ¥ 1,761 Additions: Initial credit impairments 34 661 Subsequent credit impairments 51 — Reductions: Securities sold or matured (233 ) (296 ) Balance at end of period ¥ 3,350 ¥ 2,126 The cumulative declines in fair value of the credit impaired debt securities, which were mainly corporate bonds, held at September 30, 2018 and 2019 were ¥1,826 million and ¥1,298 million, respectively. Of which, the credit loss components recognized in earnings were ¥3,350 million and ¥2,126 million, and the remaining amounts related to all other factors recognized in Accumulated OCI before taxes were ¥1,524 million and ¥828 million at September 30, 2018 and 2019, respectively. Residential mortgage-backed securities As of September 30, 2019, 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 analyzed that no OTTI was identified on such securities as of September 30, 2019 and no impairment loss has been recorded because the strength of the issuers’ guarantees through direct obligations or support from the U.S. government is expected to be sufficient to recover the entire amortized cost basis of these securities. Asset-backed securities As of September 30, 2019, unrealized losses on these securities were primarily driven by certain collateralized loan obligations (“CLOs”), highly illiquid securities for which fair values are difficult to determine. Unrealized losses arise from widening credit spreads, deterioration of the credit quality of the underlying collateral, uncertainty regarding the valuation of such securities and the market’s view of the performance of the fund managers. When the fair value of a security is lower than its amortized cost or when any security is subject to a deterioration in credit rating, the MUFG Group undertakes a cash flow analysis of the underlying collateral to estimate the OTTI and confirms the intent and ability to hold these securities until recovery. Based on the analysis performed, no OTTI was identified as of September 30, 2019 and no impairment loss has been recorded. Other debt securities As of September 30, 2019, other debt securities primarily consist of private placement debt conduit bonds, which are not rated by external credit rating agencies. The unrealized losses on these bonds result from a higher Notes: (1) Included in Investment securities gains—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 (4) The cumulative impairment losses at March 31, 2019 and September 30, 2019 were ¥ 2,292 3,325 (5) The cumulative downward changes for observable prices at March 31, 2019 and September 30, 2019 were nil (6) The cumulative upward changes for observable prices at March 31, 2019 and September 30, 2019 were ¥ 53,077 28,405 return on capital expected by the secondary market compared with the return on capital required at the time of origination when the bonds were purchased. The MUFG Group estimates loss projections for each security by assessing the underlying collateral of each security. The MUFG Group estimates the portion of loss attributable to credit based on the expected cash flows of the underlying collateral using estimates of current key assumptions, such as probability of default and loss severity. Cash flow analysis of the underlying collateral provides an estimate of OTTI, which is performed when the fair value of a security is lower than its amortized cost and potential impairment is identified. Based on the analysis, no OTTI losses were recorded in the accompanying condensed consolidated statements of income. Equity Securities The following table presents net realized gains (losses) on sales of equity securities, and net unrealized gains (losses) on equity securities still held at September 30, 2018 and 2019. Six months ended 2018 2019 (in millions) Net gains (losses) (1) ¥ 411,720 ¥ (36,019 ) Less: Net gains (losses) recognized during the period on equity securities sold during the period 12,470 (9,960 ) Net unrealized gains (losses) recognized during the reporting period still held at the reporting date ¥ 399,250 ¥ (26,059 ) Note: (1) Included in Investment securities gains—net. Measurement Alternative of Equity Securities The following table presents the carrying value of nonmarketable equity ​​​​​​​securities held at March 31, 2019 and September 30, 2019. March 31, September 30, (in millions) Measurement alternative balance ¥ 563,733 ¥ 700,634 The related adjustments for these securities during the six months ended September 30, 2018 and 2019 were as follow. Six months ended 2018 2019 (in millions) Measurement alternative impairment losses (1)(4) ¥ (479 ) ¥ (1,402 ) Measurement alternative downward changes for observable prices (1)(2)(3)(5) ¥ — ¥ (953 ) Measurement alternative upward changes for observable prices (1)(2)(3)(6) ¥ ¥ 162

Loans and Allowance for Credit

Loans and Allowance for Credit Losses [Text Block]	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Loans and Allowance for Credit Losses [Text Block]	4. LOANS AND ALLOWANCE FOR CREDIT LOSSES Loans at March 31, 2019 and September 30, 2019 by domicile and industry of the borrower are summarized below. Classification of loans by industry is based on the industry segment loan classifications as defined by the Bank of Japan. March 31, September 30, (in millions) Domestic: Manufacturing ¥ 11,153,996 ¥ 11,135,322 Construction 717,664 700,550 Real estate 11,706,419 11,566,390 Services 2,653,191 2,632,130 Wholesale and retail 7,643,397 7,335,637 Banks and other financial institutions (1) 5,213,020 5,086,664 Communication and information services 1,510,596 1,526,814 Other industries 8,756,483 8,576,044 Consumer 15,802,024 15,542,007 Total domestic 65,156,790 64,101,558 Foreign: Governments and official institutions 841,695 763,483 Banks and other financial institutions (1) 11,641,373 11,068,930 Commercial and industrial 31,951,169 31,438,990 Other 7,597,502 8,209,329 Total foreign 52,031,739 51,480,732 Unearned income, unamortized premiums—net and deferred loan fees—net (304,588 ) (318,880 ) Total (2) ¥ 116,883,941 ¥ 115,263,410 Notes: (1) Loans to so-called “non-bank Non-bank (2) The above table includes loans held for sale of ¥ 291,794 393,781 The MUFG Group classifies its loan portfolio into the following portfolio segments—Commercial, Residential, Card, MUFG Americas Holdings, 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. See Note 1 to the consolidated financial statements for the fiscal year ended March 31, 2019 for further information. 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 to the consolidated financial statements for the fiscal year ended March 31, 2019 for further information. The nonaccrual loans by class at March 31, 2019 and September 30, 2019 is shown below: March 31, September 30, (in millions) Commercial Domestic ¥ 272,777 ¥ 291,435 Manufacturing 65,896 68,232 Construction 9,813 8,944 Real estate 23,152 20,966 Services 26,188 49,172 Wholesale and retail 94,531 96,017 Banks and other financial institutions 898 860 Communication and information services 11,955 11,449 Other industries 25,406 22,572 Consumer 14,938 13,223 Foreign 111,002 101,241 Residential 68,499 65,819 Card 61,419 62,246 MUAH 46,549 55,635 Krungsri 127,424 130,831 Other — 20,107 Total (1) ¥ 687,670 ¥ 727,314 Note: (1) The above table does not include loans held for sale of ¥ 12,702 11,759 6,284 12,462 Impaired Loans The MUFG Group’s impaired loans primarily include nonaccrual loans and troubled debt restructurings (“TDRs”). The following table shows information about impaired loans by class at March 31, 2019 and September 30, 2019: Recorded Loan Balance At March 31, 2019: Requiring Not Requiring (1) Total (2) Unpaid Related (in millions) Commercial Domestic ¥ 560,474 ¥ 157,465 ¥ 717,939 ¥ 759,399 ¥ 227,004 Manufacturing 349,597 28,189 377,786 384,306 92,919 Construction 8,366 5,975 14,341 14,779 6,574 Real estate 20,848 29,961 50,809 55,943 5,704 Services 30,239 13,020 43,259 46,838 20,059 Wholesale and retail 118,253 45,620 163,873 175,714 84,503 Banks and other financial institutions 1,012 21 1,033 1,033 830 Communication and information services 8,794 6,929 15,723 16,587 6,817 Other industries 13,772 17,989 31,761 38,342 6,874 Consumer 9,593 9,761 19,354 25,857 2,724 Foreign 127,521 34,484 162,005 183,133 85,966 Loans acquired with deteriorated credit quality 8,136 — 8,136 14,990 5,450 Residential (4) 97,176 6,495 103,671 120,526 14,357 Card (4) 64,691 330 65,021 72,226 21,829 MUAH (4) 46,552 23,208 69,760 83,300 8,294 Krungsri (4) 57,066 26,193 83,259 90,377 28,254 Total (3) ¥ 961,616 ¥ 248,175 ¥ 1,209,791 ¥ 1,323,951 ¥ 391,154 Recorded Loan Balance At September 30, 2019: Requiring Not Requiring (1) Total (2) Unpaid Related (in millions) Commercial Domestic ¥ 564,458 ¥ 152,097 ¥ 716,555 ¥ 755,988 ¥ 235,107 Manufacturing 346,580 30,272 376,852 383,364 90,210 Construction 7,566 5,498 13,064 13,282 5,790 Real estate 17,133 28,563 45,696 50,856 4,856 Services 49,565 14,824 64,389 68,261 35,299 Wholesale and retail 117,234 39,960 157,194 167,279 83,897 Banks and other financial 937 42 979 979 773 Communication and information services 8,471 6,439 14,910 16,147 6,640 Other industries 8,625 18,644 27,269 33,708 5,243 Consumer 8,347 7,855 16,202 22,112 2,399 Foreign 134,365 36,966 171,331 191,514 92,694 Loans acquired with deteriorated credit quality 7,103 — 7,103 14,367 5,086 Residential (4) 91,551 6,595 98,146 114,610 13,766 Card (4) 64,906 337 65,243 72,511 19,830 MUAH (4) 52,873 30,611 83,484 103,903 9,018 Krungsri (4) 65,819 26,481 92,300 99,254 29,878 Other (4) 16,054 — 16,054 16,622 1,210 Total (3) ¥ 997,129 ¥ 253,087 ¥ 1,250,216 ¥ 1,368,769 ¥ 406,589 Notes: (1) 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, loans’ observable market price, or the fair value of the collateral if the loan is a collateral-dependent loan. (2) Included in impaired loans at March 31, 2019 and September 30, 2019 are accrual TDRs as follows: ¥ 497,013 34,449 31,715 26,183 33,155 26,851 34,213 (3) In addition to impaired loans presented in the above table, there were impaired loans held for sale of ¥12,702 million and ¥14,554 million at March 31, 2019 and September 30, 2019, respectively. (4) Impaired Loans for Residential, Card, MUAH, Krungsri and Other segments in the above table include loans acquired with deteriorated credit quality. The following table shows information regarding the average recorded loan balance and recognized interest income on impaired loans for the six months ended September 30, 2018 and 2019: 2018 2019 Average Recognized Average Recognized (in millions) Commercial Domestic ¥ 796,431 ¥ 5,846 ¥ 717,249 ¥ 5,151 Manufacturing 392,695 2,787 377,319 2,558 Construction 16,393 162 13,704 116 Real estate 61,434 544 48,253 452 Services 51,767 420 53,824 390 Wholesale and retail 175,516 1,385 160,534 1,248 Banks and other financial institutions 1,474 4 1,007 3 Communication and information services 25,854 246 15,317 159 Other industries 48,080 91 29,515 93 Consumer 23,218 207 17,776 132 Foreign 153,708 1,598 163,110 1,359 Loans acquired with deteriorated credit quality 7,648 194 7,636 113 Residential 108,914 856 100,910 700 Card 66,762 857 65,132 651 MUAH 66,505 955 84,488 1,025 Krungsri 83,239 2,640 88,624 2,828 Other — — 4,066 66 Total ¥ 1,283,207 ¥ 12,946 ¥ 1,231,215 ¥ 11,893 Interest income on nonaccrual loans for all classes was recognized on a cash basis when ultimate collectibility of principal was certain. Otherwise, cash receipts were applied as principal reductions. Interest income on accruing impaired loans, including TDRs, was recognized on an accrual basis to the extent that the collectibility of interest income was reasonably certain based on management’s assessment. The following table shows a roll-forward of accrual TDRs and other impaired loans (including nonaccrual TDRs) for the six months ended September 30, 2018 and 2019: 2018 2019 (in millions) Accrual TDRs: Balance at beginning of period ¥ 670,255 ¥ 617,651 Additions (new accrual TDR status) (1) 40,021 83,196 Transfers to other impaired loans (including nonaccrual TDRs) (9,623 ) (16,694 ) Loans sold (26 ) — Principal payments and other (46,855 ) (54,609 ) Balance at end of period (1) ¥ 653,772 ¥ 629,544 Other impaired loans (including nonaccrual TDRs): Balance at beginning of period ¥ 660,868 ¥ 592,140 Additions (new other impaired loans (including nonaccrual TDRs) status) (1)(2) 97,596 192,692 Charge-off (28,410 ) (20,679 ) Transfers to accrual TDRs (14,548 ) (31,522 ) Loans sold (2,496 ) (14,113 ) Principal payments and other (112,026 ) (97,846 ) Balance at end of period (1) ¥ 600,984 ¥ 620,672 Notes: (1) For the six months ended September 30, 2018, lease receivables of ¥ 538 50 3,642 1,135 918 228 segment, and ¥69 million and nil segment, which were accrual TDRs and nonaccrual TDRs, respectively, are excluded from the additions of accrual TDRs and other impaired loans, respectively, and the related ending balances of such TDRs amounting to ¥ 5,037 3,529 in the Krungsri segment, and ¥68 million and nil are also excluded from the balance of accrual TDRs and other impaired loans, respectively, as of September 30, 2019. (2) Included in the additions of other impaired loans for the six months ended September 30, 2018 and 2019 are nonaccrual TDRs as follows: ¥6,870 million and ¥7,741 million—Card; ¥9,809 million and ¥7,904 million—MUFG Americas Holdings; ¥6,499 million and ¥4,478 million— Troubled Debt Restructurings The following table summarizes the MUFG Group’s TDRs by class for the six months ended September 30, 2018 and 2019: 2018 2019 Troubled Debt Troubled Debt Troubled Debt Troubled Debt Pre- Post- Recorded Pre- Post- Recorded (in millions) Commercial (1)(3) Domestic ¥ 20,440 ¥ 20,440 ¥ 1,643 ¥ 20,607 ¥ 20,607 ¥ 6,342 Manufacturing 4,594 4,594 74 9,120 9,120 2,544 Construction 43 43 — 42 42 — Real estate 561 561 — 254 254 — Services 1,505 1,505 436 2,422 2,422 2 Wholesale and retail 12,240 12,240 615 7,779 7,779 3,708 Banks and other financial institutions — — — — — — Communication and information services 156 156 518 240 240 — Other industries 312 312 — 615 615 — Consumer 1,029 1,029 — 135 135 88 Foreign 5,649 5,649 — 29,360 29,360 — Loans acquired with deteriorated credit quality — — — — — — Residential (1)(3) 4,235 4,235 83 3,215 3,215 27 Card (2)(3) 10,382 9,953 1,810 11,900 11,362 1,825 MUAH (2)(3) 11,621 11,621 199 18,766 18,656 4,572 Krungsri (2)(3) 11,889 11,889 3,545 16,724 16,695 3,815 Other (2) — — — 5,117 5,117 — Total ¥ 64,216 ¥ 63,787 ¥ 7,280 ¥ 105,689 ¥ 105,012 ¥ 16,581 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 , (3) For the six months ended September 30, 2018, 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 segment. For the six months ended September 30, 2019, extension of the stated maturity date of loans was the primary concession type in the Commercial and Residential segments, reduction in the stated rate was the primary concession type in the Card segment, and some combination thereof were the primary concession type in the MUFG Americas Holdings and Krungsri segments. The following table summarizes outstanding recorded investment balances of TDRs by class at March 31, 2019 and September 30, 2019: March 31, September 30, (in millions) Commercial (1) Domestic ¥ 445,312 ¥ 425,231 Manufacturing 311,890 308,620 Construction 4,591 4,176 Real estate 27,657 24,730 Services 17,135 15,257 Wholesale and retail 69,350 61,182 Banks and other financial institutions 135 120 Communication and information services 3,780 3,468 Other industries 6,357 4,699 Consumer 4,417 2,979 Foreign 51,701 70,140 Residential (1) 34,449 31,715 Card (2) 65,021 65,243 MUAH (2) 48,128 58,063 Krungsri (2) 62,980 72,333 Other (2) — 5,052 Total ¥ 707,591 ¥ 727,777 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. Included in the outstanding recorded investment balances as of March 31, 2019 and September 30, 2019 are nonaccrual TDRs as follows: ¥ 38,838 39,637 14,973 19,936 31,069 33,083 ; and 472 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. Those loans are also considered impaired loans, and hence the allowance for credit losses is separately established for each loan. As a result, the amount of allowance for credit losses increases in many cases upon classification as a TDR loan. The amount of pre-modification 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 nonaccruing 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. Credit Quality Indicator Credit quality indicators of loans by class at March 31, 2019 and September 30, 2019 are shown below: At March 31, 2019: Normal Close Likely to become Total (1) (in millions) Commercial Domestic ¥ 49,391,991 ¥ 1,242,075 ¥ 217,745 ¥ 50,851,811 Manufacturing 10,819,594 279,801 47,968 11,147,363 Construction 672,152 37,236 7,857 717,245 Real estate 11,403,613 222,791 22,515 11,648,919 Services 2,436,489 174,784 19,953 2,631,226 Wholesale and retail 7,240,801 329,249 68,736 7,638,786 Banks and other financial institutions 5,199,889 7,654 898 5,208,441 Communication and information services 1,465,652 34,542 10,172 1,510,366 Other industries 8,610,464 119,581 24,947 8,754,992 Consumer 1,543,337 36,437 14,699 1,594,473 Foreign 35,418,267 562,854 112,103 36,093,224 Loans acquired with deteriorated credit quality 11,622 10,833 3,790 26,245 Total ¥ 84,821,880 ¥ 1,815,762 ¥ 333,638 ¥ 86,971,280 Accrual Nonaccrual Total (1) (in millions) Residential ¥ 13,661,794 ¥ 66,290 ¥ 13,728,084 Card ¥ 516,983 ¥ 61,599 ¥ 578,582 Credit Quality Based on Credit Quality Based on Accrual Nonaccrual Pass Special Classified Total (1)(2) (in millions) MUAH ¥ 4,752,021 ¥ 15,540 ¥ 4,699,698 ¥ 51,948 ¥ 88,356 ¥ 9,607,563 Normal Special Substandard or Total (1) (in millions) Krungsri ¥ 5,682,245 ¥ 199,070 ¥ 129,222 ¥ 6,010,537 At September 30, 2019: Normal Close Likely to become Total (1) (in millions) Commercial Domestic ¥ 48,621,489 ¥ 1,121,861 ¥ 211,209 ¥ 49,954,559 Manufacturing 10,772,765 277,025 44,962 11,094,752 Construction 659,171 33,812 7,191 700,174 Real estate 11,308,023 184,868 20,665 11,513,556 Services 2,437,279 155,459 21,235 2,613,973 Wholesale and retail 6,957,169 289,119 72,255 7,318,543 Banks and other financial institutions 5,053,997 7,332 860 5,062,189 Communication and information services 1,484,370 32,607 9,614 1,526,591 Other industries 8,442,000 109,763 21,522 8,573,285 Consumer 1,506,715 31,876 12,905 1,551,496 Foreign 33,355,422 547,441 97,932 34,000,795 Loans acquired with deteriorated credit quality 10,708 9,958 2,826 23,492 Total ¥ 81,987,619 ¥ 1,679,260 ¥ 311,967 ¥ 83,978,846 Accrual Nonaccrual Total (1) (in millions) Residential ¥ 13,451,371 ¥ 63,697 ¥ 13,515,068 Card ¥ 506,130 ¥ 62,398 ¥ 568,528 Credit Quality Based on Credit Quality Based on Accrual Nonaccrual Pass Special Classified Total (1)(2) (in millions) MUAH ¥ 4,738,147 ¥ 14,983 ¥ 4,586,635 ¥ 82,567 ¥ 100,355 ¥ 9,522,687 Normal Special Substandard or Total (1) (in millions) Krungsri ¥ 6,156,695 ¥ 207,183 ¥ 132,678 ¥ 6,496,556 Accrual Nonaccrual Total (1) (in millions) Other ¥ 1,078,936 ¥ 27,309 ¥ 1,106,245 Notes: (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. (2 ) Total loans of MUFG Americas Holdings do not include Federal Deposit Insurance Corporation (“FDIC”) covered loans which are not individually rated totaling ¥689 million and ¥579 million at March 31, 2019 and September 30, 2019, respectively. The MUFG Group will be reimbursed for a substantial portion of any future losses on FDIC covered loans under the terms of the FDIC loss share agreements. For a discussion and explanation of the MUFG Group’s credit quality indicator, see Note 4 to the consolidated financial statements for the fiscal year ended March 31, 2019. For the Commercial, Residential and Card segments, credit quality indicators at March , and September , are based on information as of March , and September , , . For the MUFG Americas Past Due Analysis Ages of past due loans by class at March 31, 2019 and September 30, 2019 are shown below: At March 31, 2019: 1-3 Greater Total Current Total (1) Recorded (in millions) Commercial Domestic ¥ 11,551 ¥ 30,648 ¥ 42,199 ¥ 50,809,612 ¥ 50,851,811 ¥ 6,900 Manufacturing 1,597 3,036 4,633 11,142,730 11,147,363 — Construction 218 60 278 716,967 717,245 1 Real estate 2,034 4,256 6,290 11,642,629 11,648,919 2,524 Services 778 569 1,347 2,629,879 2,631,226 1 Wholesale and retail 2,791 2,390 5,181 7,633,605 7,638,786 62 Banks and other financial institutions — 21 21 5,208,420 5,208,441 — Communication and information services 411 758 1,169 1,509,197 1,510,366 — Other industries 365 13,037 13,402 8,741,590 8,754,992 — Consumer 3,357 6,521 9,878 1,584,595 1,594,473 4,312 Foreign 10,881 19,993 30,874 36,062,350 36,093,224 236 Residential 62,686 16,615 79,301 13,641,449 13,720,750 6,584 Card 17,203 30,568 47,771 527,421 575,192 — MUAH 28,696 10,827 39,523 9,557,501 9,597,024 2,287 Krungsri 126,313 106,777 233,090 5,771,541 6,004,631 — Total ¥ 257,330 ¥ 215,428 ¥ 472,758 ¥ 116,369,874 ¥ 116,842,632 ¥ 16,007 At September 30, 2019: 1-3 Greater Total Current Total (1) Recorded (in millions) Commercial Domestic ¥ 10,355 ¥ 35,204 ¥ 45,559 ¥ 49,909,000 ¥ 49,954,559 ¥ 5,800 Manufacturing 1,367 1,744 3,111 11,091,641 11,094,752 2 Construction 26 97 123 700,051 700,174 — Real estate 1,311 3,828 5,139 11,508,417 11,513,556 1,736 Services 1,317 1,156 2,473 2,611,500 2,613,973 31 Wholesale and retail 2,730 7,640 10,370 7,308,173 7,318,543 — Banks and other financial institutions — 21 21 5,062,168 5,062,189 — Communication and information services 199 864 1,063 1,525,528 1,526,591 7 Other industries 79 14,205 14,284 8,559,001 8,573,285 — Consumer 3,326 5,649 8,975 1,542,521 1,551,496 4,024 Foreign 16,252 17,417 33,669 33,967,126 34,000,795 21 Residential 56,580 16,082 72,662 13,435,300 13,507,962 6,096 Card 16,599 30,340 46,939 518,427 565,366 — MUAH 36,588 19,706 56,294 9,458,170 9,514,464 1,374 Krungsri 131,259 110,259 241,518 6,249,090 6,490,608 — Other 17,960 18,745 36,705 1,055,502 1,092,207 — Total ¥ 285,593 ¥ 247,753 ¥ 533,346 ¥ 114,592,615 ¥ 115,125,961 ¥ 13,291 Note: (1) Total loans in the above table do not include loans held for sale and loans acquired with deteriorated credit quality and represent balances without adjustments in relation to unearned income, unamortized premiums and deferred loan fees. Allowance for Credit Losses Changes in the allowance for credit losses by portfolio segment for the six months ended September 30, 2018 and 2019 are shown below: Six months ended September 30, 2018: Commercial Residential Card MUAH Krungsri Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 491,098 ¥ 42,546 ¥ 32,119 ¥ 53,765 ¥ 144,596 ¥ 764,124 Provision for (reversal of) credit losses (104,297 ) (1,651 ) 12,400 1,423 21,065 (71,060 ) Charge-offs 22,432 1,648 12,401 7,909 30,213 74,603 Recoveries 6,616 416 500 1,448 10,119 19,099 Net charge-offs 15,816 1,232 11,901 6,461 20,094 55,504 Others (1) 3,368 — — (1,274 ) (5,045 ) (2,951 ) Balance at end of period ¥ 374,353 ¥ 39,663 ¥ 32,618 ¥ 47,453 ¥ 140,522 ¥ 634,609 Six months ended September 30, 2019: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 389,615 ¥ 38,626 ¥ 32,550 ¥ 52,581 ¥ 144,812 ¥ — ¥ 658,184 Provision for credit losses 28,388 130 14,456 17,950 24,902 16,295 102,121 Charge-offs 29,033 2,093 12,715 16,266 36,240 6,223 102,570 Recoveries 15,612 355 721 2,791 11,115 2,420 33,014 Net charge-offs 13,421 1,738 11,994 13,475 25,125 3,803 69,556 Others (1) (3,410 ) — — (1,613 ) 3,568 1,379 (76 ) Balance at end of period ¥ 401,172 ¥ 37,018 ¥ 35,012 ¥ 55,443 ¥ 148,157 ¥ 13,871 ¥ 690,673 Note: (1 ) Others are principally comprised of gains or losses from foreign exchange translation. Allowance for credit losses and recorded investment in loans by portfolio segment at March 31, 2019 and September 30, 2019 are shown below: At March 31, 2019: Commercial Residential Card MUAH Krungsri Total (in millions) Allowance for credit losses: Individually evaluated for impairment ¥ 312,970 ¥ 14,175 ¥ 21,829 ¥ 8,294 ¥ 28,254 ¥ 385,522 Collectively evaluated for impairment 63,366 23,413 10,708 44,282 116,529 258,298 Loans acquired with deteriorated credit quality (2) 13,279 1,038 13 5 29 14,364 Total ¥ 389,615 ¥ 38,626 ¥ 32,550 ¥ 52,581 ¥ 144,812 ¥ 658,184 Loans: Individually evaluated for impairment ¥ 879,944 ¥ 102,948 ¥ 64,752 ¥ 69,760 ¥ 83,259 ¥ 1,200,663 Collectively evaluated for impairment 86,065,091 13,617,802 510,440 9,527,264 5,921,372 115,641,969 Loans acquired with deteriorated credit quality (2) 26,245 7,334 3,390 11,228 5,906 54,103 Total (1) ¥ 86,971,280 ¥ 13,728,084 ¥ 578,582 ¥ 9,608,252 ¥ 6,010,537 ¥ 116,896,735 At September 30, 2019: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Individually evaluated for impairment ¥ 327,801 ¥ 13,597 ¥ 19,830 ¥ 9,018 ¥ 29,878 ¥ 462 ¥ 400,586 Collectively evaluated for impairment 61,397 22,159 15,175 46,420 118,251 12,660 276,062 Loans acquired with deteriorated credit quality (2) 11,974 1,262 7 5 28 749 14,025 Total ¥ 401,172 ¥ 37,018 ¥ 35,012 ¥ 55,443 ¥ 148,157 ¥ 13,871 ¥ 690,673 Loans: Individually evaluated for impairment ¥ 887,886 ¥ 97,534 ¥ 65,004 ¥ 83,484 ¥ 92,300 ¥ 8,901 ¥ 1,235,109 Collectively evaluated for impairment 83,067,468 13,410,428 500,362 9,430,980 6,398,308 1,083,306 113,890,852 Loans acquired with deteriorated credit quality (2) 23,492 7,106 3,162 8,802 5,948 14,038 62,548 Total (1) ¥ 83,978,846 ¥ 13,515,068 ¥ 568,528 ¥ 9,523,266 ¥ 6,496,556 ¥ 1,106,245 ¥ 115,188,509 Notes: (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. (2 ) Loans acquired with deteriorated credit quality in the above table include impaired loans which are individually evaluated for impairment. The MUFG Group sold ¥590 billion and ¥816 billion of loans within the Commercial segment during the six months ended September 30, 2018 and 2019, respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets [Text Block]	6 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets [Text Block]	5. GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill The table below presents the movement in the carrying amount of goodwill during the six months ended September 30, 2018 and 2019: Six months ended 2018 2019 (in millions) Balance at beginning of period Goodwill (1) ¥ 633,452 ¥ 626,009 Accumulated impairment losses (1) (192,118 ) (192,118 ) 441,334 433,891 Goodwill acquired during the six months (2) — 446,643 Impairment loss — (241,356 ) Foreign currency translation adjustments and other (10,179 ) (22,558 ) Balance at end of period Goodwill 623,273 1,050,094 Accumulated impairment losses (192,118 ) (433,474 ) ¥ 431,155 ¥ 616,620 Note s (1 ) Goodwill originally recognized was ¥1,900,019 million, which has been fully impaired before April 1, 201 8 (2 ) See Note 2 for the goodwill acquired in connection with acquisitions. The impairment losses on goodwill for the six months ended September 30, 2019 w ere million and relating to Danamon reporting unit, which is included in impairment of goodwill in the accompanying condensed consolidated statements of income. 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 with the fair value 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 the ones 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. Other Intangible Assets The table below presents the net carrying amount by major class of other intangible assets at March 31, 2019 and September 30, 2019: March 31, September 30, (in millions) Intangible assets subject to amortization: Software ¥ 673,638 ¥ 715,487 Customer relationships 141,410 306,089 Core deposit intangibles 38,153 78,129 Trade names 42,921 57,556 Other 5,381 12,034 Total 901,503 1,169,295 Intangible assets not subject to amortization: Other (1) 25,693 32,106 Total ¥ 927,196 ¥ 1,201,401 Note: (1 ) Intangible assets not subject to amortization includes mortgage servicing rights accounted for at fair value of ¥ 17,431 23,480 The impairment losses on other intangible assets for the six months ended September 30, 2018 and 2019 were ¥667 million and ¥2,334 million, respectively, which are included in I

Lease Transactions _Text Block_

Lease Transactions [Text Block]	6 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Lease Transactions [Text Block]	6. LEASE TRANSACTIONS Lease transaction as a lessee Right-of-use assets of finance lease, which are principally related to data processing equipment and included in Premises and equipment in the accompanying condensed consolidated balance sheets, amounted to ¥19,182 million at September 30, 2019. Lease liabilities of these finance leases, which are included in Long-term debt in the accompanying condensed consolidated balance sheets, amounted to ¥26,097 million at September 30, 2019. Right-of-use assets of operating leases, which are principally related to office space and equipment are included in Other assets in the accompanying condensed consolidated balance sheets, amounted to ¥406,567 million at September 30, 2019. Lease liabilities of these operating leases, which are included in Other liabilities in the accompanying condensed consolidated balance sheets, amounted to ¥482,474 million at September 30, 2019. 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 have elected to exclude leases with original terms of less than one year from the operating lease ROU assets and lease liabilities. The MUFG Group’s lease arrangements that have not yet commenced as of September 30, 2019 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 six months ended September 30, 2019: September 30, 2019 (in millions) Finance lease cost: Amortization of right-of-use assets ¥ 2,420 Interest on lease liabilities 150 Operating lease cost 46,783 The following table presents information of lease transactions as a lessee for the six months ended September 30, 2019: September 30, 2019 (in millions) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases ¥ 218 Operating cash flows from operating leases 54,517 Financing cash flows from finance leases 3,430 Right-of-use assets obtained in exchange for new finance lease liabilities 9,981 Right-of-use assets obtained in exchange for new operating lease liabilities 19,490 Weighted-average remaining lease term: Finance leases 4.7 years Operating leases 9.3 years Weighted-average discount rate: Finance leases 1.16 % Operating leases 1.29 % Maturities of lease liabilities as of September 30, 2019 are as follows: Finance Operating leases (in millions) 2020 (excluding these six months ended September 30, 2019) ¥ 4,084 ¥ 49,340 2021 7,350 93,869 2022 6,074 72,109 2023 4,034 52,910 2024 2,528 37,623 2025 and thereafter 3,285 210,928 Total undiscounted cash flows 27,355 516,779 Difference between undiscounted and discounted cash flows (1,258 ) (34,305 ) Amount on balance sheet ¥ 26,097 ¥ 482,474 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 various types of data processing equipment, office equipment and transportation equipm ent. Financing leases are presented in loans. In certain case, the MUFG Group requests lessees to deposit in amount nearly or equal to residual value of leased assets. The following table presents profit or loss of lease transactions as a lessor for the six months ended September 30, 2019: September 30, 2019 (in millions) Financing leases: Finance income on net investment ¥ 59,058 Operating leases: Lease income 1,917 Total ¥ 60,975 Finance income on net investment is included in Interest income—Loans, including fees in the condensed consolidated statements of income. Lease income from operating lease transactions is included in Other non-interest The following table presents the components of direct financing lease transactions as of September 30, 2019. September 30, (in millions) Lease receivables ( un ¥ 2,057,016 Adjustments: Discounted unguaranteed residual value 25,504 Initial direct cost on direct financing leases 26,756 Deferred selling profit (331,036 ) Net investment in direct financing leases ¥ 1,778,240 The following table presents maturity of the lease payment receivables of direct financing lease transactions as of September 30, 2019: Lease receivables (in millions) 2020 (excluding these six months ended September 30, 2019) ¥ 328,477 2021 490,312 2022 392,828 2023 307,340 2024 222,265 2025 and thereafter 315,794 Total undiscounted cash flows 2,057,016 Difference between undiscounted cash flows and the lease receivables recognized on balance sheet (278,776 ) Amount on balance sheet ¥ 1,778,240

Pledged Assets and Collateral _

Pledged Assets and Collateral [Text Block]	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Pledged Assets and Collateral [Text Block]	7. PLEDGED ASSETS AND COLLATERAL At September 30, 2019, assets mortgaged, pledged, or otherwise subject to lien were as follows: September 30, (in millions) Trading account securities ¥ 7,397,338 Investment securities 5,264,459 Loans 13,075,475 Other 39,010 Total ¥ 25,776,282 The above pledged assets were classified by type of liabilities to which they related as follows: September 30, (in millions) Deposits ¥ 260,151 Call money and funds purchased 6,314 Payables under repurchase agreements and securities lending transactions 12,014,688 Other short-term borrowings and long-term debt 13,478,750 Other 16,379 Total ¥ 25,776,282 At September 30, 2019, certain investment securities, principally Japanese national government and Japanese government agency bonds, loans and other assets with a combined carrying value of ¥21,932,410 million were pledged for acting as a collection agent of public funds, for settlement of exchange at the Bank of Japan and Japanese Banks’ Payment Clearing Network, for derivative transactions and for certain other purposes. The MUFG Group engages in on-balance sheet securitizations. These securitizations of mortgage and apartment loans, which do not qualify for sales treatment, are accounted for as secured borrowings. The amount of loans in the table above represents the carrying amount of these transactions with the carrying amount of the associated liabilities included in Other short-term borrowings and Long-term debt. At March 31, 2019 and September 30, 2019, the cash collateral pledged for derivative transactions, which is included in Other assets, was ¥1,276,897 million and ¥1,366,194 million, respectively, and the cash collateral received for derivative transactions, which is included in Other liabilities, was ¥844,234 million and ¥963,909 million, respectively.

Severance Indemnities and Pensi

Severance Indemnities and Pension Plans [Text Block]	6 Months Ended
	Sep. 30, 2019
Retirement Benefits [Abstract]
Severance Indemnities and Pension Plans [Text Block]	8. SEVERANCE INDEMNITIES AND PENSION PLANS The following table summarizes the components of net periodic benefit costs of pension benefits, severance indemnities plans (“SIPs”) and other benefits for the six months ended September 30, 2018 and 2019: Six months ended September 30, Domestic subsidiaries Foreign offices and subsidiaries 2018 2019 2018 2019 Pension Pension Pension Other Pension Other (in millions) Service cost—benefits earned during the period ¥ 24,205 ¥ 24,585 ¥ 5,975 ¥ 271 ¥ 6,550 ¥ 175 Interest cost on projected benefit obligation 6,764 5,545 7,407 515 8,667 575 Expected return on plan assets (37,170 ) (37,585 ) (16,413 ) (1,139 ) (15,847 ) (949 ) Amortization of net actuarial loss 612 2,602 3,492 349 4,915 556 Amortization of prior service cost (604 ) (602 ) (1,496 ) (995 ) (1,332 ) (948 ) Loss ) (3,901 ) (2,347 ) — — 185 — Net periodic benefit cost (income) ¥ (10,094 ) ¥ (7,802 ) ¥ (1,035 ) ¥ (999 ) ¥ 3,138 ¥ (591 ) The MUFG Group has contributed to the plan assets for the six months ended September 30, 2019 and expects to contribute for the remainder of the fiscal year ending March 31, 2020 as follows, based upon its current funded status and expected asset return assumptions: Domestic Foreign offices Pension Pension Other (in billions) For the six months ended September 30, 2019 ¥ 21.5 ¥ 0.8 ¥ 0.2 For the remainder of the fiscal year ending March 31, 2020 ¥ 7.7 ¥ 0.4 ¥ 0.2

Offsetting of Derivatives, Repu

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions [Text Block]	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions [Text Block]	9. OFFSETTING OF DERIVATIVES, REPURCHASE AGREEMENTS, AND SECURITIES LENDING TRANSACTIONS The following tables present, as of March 31, 2019 and September 30, 2019, the gross and net amounts of derivatives, resale and repurchase agreements, and securities borrowing and lending transactions, including the related gross amounts subject to an enforceable master netting arrangement or similar agreement not offset in the condensed consolidated balance sheets. The MUFG Group primarily enters into International Swaps and Derivatives Association master netting agreements, master repurchase agreements and master securities lending agreements or similar agreements for derivative contracts, resale and repurchase agreements, and securities borrowing and lending transactions. In the event of default on or termination of any one contract, these agreements provide the contracting parties with the right to net a counterparty’s rights and obligations and to liquidate and 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 condensed consolidated balance sheet” column in the tabular disclosure below. For certain transactions where a legal opinion with respect to the enforceability of netting has not been sought or obtained, the related amounts are not subject to enforceable master netting agreements and not included in “Gross amounts not offset in the condensed consolidated balance sheet” column in the tabular disclosure below. Gross amounts of Gross amounts Net amounts Gross amounts not offset At March 31, 2019 consolidated Financial Cash collateral Net amounts (in billions) Financial assets: Derivative assets ¥ 13,205 ¥ — ¥ 13,205 ¥ (10,752 ) ¥ (590 ) ¥ 1,863 Receivables under resale 13,885 (2,910 ) 10,975 (9,793 ) (20 ) 1,162 Receivables under securities 2,759 — 2,759 (2,693 ) — 66 Total ¥ 29,849 ¥ (2,910 ) ¥ 26,939 ¥ (23,238 ) ¥ (610 ) ¥ 3,091 Financial liabilities: Derivative liabilities ¥ 12,710 ¥ — ¥ 12,710 ¥ (10,671 ) ¥ (933 ) ¥ 1,106 Payables under repurchase agreements 28,125 (2,900 ) 25,225 (24,930 ) (15 ) 280 Payables under securities lending transactions 913 — 913 (880 ) — 33 Obligations to return securities received as collateral 3,087 — 3,087 (1,244 ) — 1,843 Total ¥ 44,835 ¥ (2,900 ) ¥ 41,935 ¥ (37,725 ) ¥ (948 ) ¥ 3,262 Gross amounts of recognized Gross amounts consolidated Net amounts presented in the condensed Gross amounts not offset in the condensed consolidated balance sheet At September 30, 2019 consolidated Financial Cash collateral Net amounts (in billions) Financial assets: Derivative assets ¥ 14,975 ¥ — ¥ 14,975 ¥ (11,956 ) ¥ (726 ) ¥ 2,293 Receivables under resale 18,104 (1,857 ) 16,247 (15,349 ) (23 ) 875 Receivables under securities 2,874 — 2,874 (2,802 ) — 72 Total ¥ 35,953 ¥ (1,857 ) ¥ 34,096 ¥ (30,107 ) ¥ (749 ) ¥ 3,240 Financial liabilities: Derivative liabilities ¥ 14,182 ¥ — ¥ 14,182 ¥ (11,999 ) ¥ (1,003 ) ¥ 1,180 Payables under repurchase 28,468 (1,852 ) 26,616 (26,286 ) (13 ) 317 Payables under securities lending transactions 1,111 — 1,111 (1,075 ) — 36 Obligations to return securities 3,391 — 3,391 (1,196 ) — 2,195 Total ¥ 47,152 ¥ (1,852 ) ¥ 45,300 ¥ (40,556 ) ¥ (1,016 ) ¥ 3,728

Repurchase Agreements, and Secu

Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Text Block]	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Text Block]	10. 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, 2019 and September 30, 2019. 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, 2019 Remaining Contractual Maturity Overnight 30 days 31-90 Over Total (in billions) Payables under repurchase agreements ¥ 3,892 ¥ 18,586 ¥ 2,824 ¥ 2,823 ¥ 28,125 Payables under securities lending transactions 913 — — — 913 Obligations to return securities received as collateral 2,572 396 117 2 3,087 Total ¥ 7,377 ¥ 18,982 ¥ 2,941 ¥ 2,825 ¥ 32,125 September 30, 2019 Remaining Contractual Maturity Overnight 30 days 31-90 Over Total (in billions) Payables under repurchase agreements ¥ 8,368 ¥ 12,467 ¥ 4,557 ¥ 3,076 ¥ 28,468 Payables under securities lending transactions 1,061 50 — — 1,111 Obligations to return securities received as collateral 3,046 210 134 1 3,391 Total ¥ 12,475 ¥ 12,727 ¥ 4,691 ¥ 3,077 ¥ 32,970 Secured borrowing by the class of collateral pledged at March 31, 2019 and September 30, 2019 was as follows: March 31, 2019 Payables under Payables under Obligations Total (in billions) Japanese national government and Japanese government agency bonds ¥ 8,306 ¥ 21 ¥ 856 ¥ 9,183 Foreign government and official institution bonds 14,291 — 1,286 15,577 Corporate bonds 705 — 172 877 Residential mortgage-backed securities 4,369 — — 4,369 Other debt securities 238 — — 238 Marketable equity securities 200 892 772 1,864 Others 16 — 1 17 Total ¥ 28,125 ¥ 913 ¥ 3,087 ¥ 32,125 September 30, 2019 Payables under Payables under Obligations Total (in billions) Japanese national government and Japanese government agency bonds ¥ 9,662 ¥ 87 ¥ 1,208 ¥ 10,957 Foreign government and official institution bonds 15,142 57 1,018 16,217 Corporate bonds 663 — 122 785 Residential mortgage-backed securities 2,323 — — 2,323 Other debt securities 275 — — 275 Marketable equity securities 276 965 1,043 2,284 Others 127 2 — 129 Total ¥ 28,468 ¥ 1,111 ¥ 3,391 ¥ 32,970

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss) [Text Block]	6 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss) [Text Block]	11. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following table presents the changes in Accumulated OCI, net of tax and net of noncontrolling interests, for the six months ended September 30, 2018 and 2019: Six months ended 2018 2019 (in millions) Accumulated other comprehensive i Net unrealized gains (losses) on investment securities: Balance at beginning of period ¥ 2,270,346 ¥ (369,369 ) Net change during the period (91,819 ) 82,908 Effect of adopting new guidance on recognition and measurement of financial assets and financial liabilities (2,700,331 ) — Balance at end of period ¥ (521,804 ) ¥ (286,461 ) Net debt valuation adjustments: Balance at beginning of period ¥ (16,488 ) ¥ (8,670 ) Net change during the period (2,226 ) 850 Effect of adopting new guidance on recognition and measurement of financial assets and financial liabilities (1,911 ) — Balance at end of period ¥ (20,625 ) ¥ (7,820 ) Net unrealized losses on derivatives qualifying for cash flow hedges: Balance at beginning of period ¥ (19,250 ) ¥ (24,140 ) Net change during the period (6,843 ) 9,167 Balance at end of period ¥ (26,093 ) ¥ (14,973 ) Defined benefit plans: Balance at beginning of period ¥ (119,593 ) ¥ (208,273 ) Net change during the period 16,459 (7,750 ) Balance at end of period ¥ (103,134 ) ¥ (216,023 ) Foreign currency translation adjustments: Balance at beginning of period ¥ 362,300 ¥ 326,183 Net change during the period 37,116 (205,047 ) Balance at end of period ¥ 399,416 ¥ 121,136 Balance at end of period ¥ (272,240 ) ¥ (404,141 ) The following table presents the before tax and net of tax changes in each component of Accumulated OCI for the six months ended September 30, 2018 and 2019: Six months ended September 30, 2018 2019 Before tax Tax (expense) Net of tax Before tax Tax (expense) Net of tax (in millions) Net unrealized gains (losses) on investment securities: Net unrealized gains (losses) on investment securities ¥ (94,429 ) ¥ 29,952 ¥ (64,477 ) ¥ 157,642 ¥ (34,202 ) ¥ 123,440 Reclassification adjustment for gains included in net income before attribution of noncontrolling interests (14,494 ) 4,626 (9,868 ) (45,354 ) 13,370 (31,984 ) Net change (108,923 ) 34,578 (74,345 ) 112,288 (20,832 ) 91,456 Net unrealized gains on investment securities attributable to noncontrolling interests 17,474 8,548 Net unrealized gains (losses) on investment securities attributable to Mitsubishi UFJ Financial Group (91,819 ) 82,908 Net debt valuation adjustments: Net debt valuation adjustments (4,038 ) 1,236 (2,802 ) 1,067 (327 ) 740 Reclassification adjustment for losses included in net income before attribution of noncontrolling interests 829 (253 ) 576 159 (49 ) 110 Net change (3,209 ) 983 (2,226 ) 1,226 (376 ) 850 Net debt valuation adjustments attributable to noncontrolling interests — — Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group (2,226 ) 850 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Net unrealized gains (losses) on derivatives qualifying for cash flow hedges (10,138 ) 2,774 (7,364 ) 6,748 (1,934 ) 4,814 Reclassification adjustment for losses included in net income before attribution of noncontrolling interests 735 (214 ) 521 5,843 (1,527 ) 4,316 Net change (9,403 ) 2,560 (6,843 ) 12,591 (3,461 ) 9,130 Net unrealized losses on derivatives qualifying for cash flow hedges attributable to noncontrolling interests — (37 ) Net unrealized gains (losses) on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group (6,843 ) 9,167 Defined benefit plans: Defined benefit plans 26,282 (8,022 ) 18,260 (13,959 ) 3,917 (10,042 ) Reclassification adjustment for gains ( losses (2,643 ) 878 (1,765 ) 2,169 (500 ) 1,669 Net change 23,639 (7,144 ) 16,495 (11,790 ) 3,417 (8,373 ) Defined benefit plans attributable to noncontrolling interests 36 (623 ) Defined benefit plans attributable to Mitsubishi UFJ Financial Group 16,459 (7,750 ) Foreign currency translation adjustments: Foreign currency translation adjustments 63,376 (35,893 ) 27,483 (224,257 ) 24,752 (199,505 ) Reclassification adjustment for gains included in net income before attribution of noncontrolling interests (2,685 ) 851 (1,834 ) (2,208 ) 1,095 (1,113 ) Net change 60,691 (35,042 ) 25,649 (226,465 ) 25,847 (200,618 ) Foreign currency translation adjustments attributable to noncontrolling interests (11,467 ) 4,429 Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group 37,116 (205,047 ) Other comprehensive loss attributable to Mitsubishi UFJ Financial Group ¥ (47,313 ) ¥ (119,872 ) The following table presents the effect of the reclassification of significant items out of Accumulated OCI on the respective line items of the accompanying condensed consolidated statements of income for the six months ended September 30, 2018 and 2019: Six months ended 2018 2019 Details of Accumulated OCI components Amount reclassified out of Line items in the consolidated statements of income (in millions) Net unrealized losses (gains) on investment securities Net gains on sales and redemptions of Available-for-sale ¥ (14,476 ) ¥ (45,550 ) Investment securities gains—net Other (18 ) 196 (14,494 ) (45,354 ) Total before tax 4,626 13,370 Income tax expense ¥ (9,868 ) ¥ (31,984 ) Net of tax Net debt valuation adjustments ¥ 829 ¥ 159 Equity in earnings of equity method investees—net 829 159 Total before tax (253 ) (49 ) Income tax expense ¥ 576 ¥ 110 Net of tax Net unrealized losses (gains) on derivatives qualifying for cash flow hedges Interest rate contracts ¥ 816 ¥ 4,408 Interest income on Loans, including fees Foreign exchange contracts ¥ — ¥ 1,433 Interest expense on Long-term debt or Foreign exchange losses—net Other (81 ) 2 735 5,843 Total before tax (214 ) (1,527 ) Income tax expense ¥ 521 ¥ 4,316 Net of tax Defined benefit plans Net actuarial loss (1) ¥ 4,452 ¥ 8,073 Other non-interest Prior service cost (1) (3,095 ) (2,882 ) Other non-interest Loss (gain) on settlements and curtailment, and other (1) (4,000 ) (3,022 ) Other non-interest (2,643 ) 2,169 Total before tax 878 (500 ) Income tax expense ¥ (1,765 ) ¥ 1,669 Net of tax Foreign currency translation adjustments ¥ (2,686 ) ¥ (4,976 ) Other non-interest 1 2,768 Other non-interest (2,685 ) (2,208 ) Total before tax 851 1,095 Income tax expense ¥ (1,834 ) ¥ (1,113 ) Net of tax Total reclassifications for the period ¥ (18,258 ) ¥ (39,391 ) Total before tax 5,888 12,389 Income tax expense ¥ (12,370 ) ¥ (27,002 ) Net of tax Note: (1) These Accumulated OCI components are components of net periodic benefit cost. See Note 8 for more information.

Noncontrolling Interests _Text

Noncontrolling Interests [Text Block]	6 Months Ended
	Sep. 30, 2019
Noncontrolling Interest [Abstract]
Noncontrolling Interests [Text Block]	12. NONCONTROLLING INTERESTS Changes in MUFG’s Ownership Interests in Subsidiaries The following table presents the effect on MUFG’s shareholders’ equity from changes in ownership of subsidiaries resulting from transactions with the noncontrolling interest shareholders during the six months ended September 30, 2018 and 2019: Six months ended 2018 2019 (in millions) Net income attributable to Mitsubishi UFJ Financial Group ¥ 553,251 ¥ 616,542 Transactions between Mitsubishi UFJ Financial Group and the noncontrolling interest shareholders 36 6,094 Net transfers from the noncontrolling interest shareholders 36 6,094 Change from net income attributable to Mitsubishi UFJ Financial Group and transactions between Mitsubishi UFJ Financial Group and the noncontrolling interest shareholders ¥ 553,287 ¥ 622,636

Derivative Financial Instrument

Derivative Financial Instruments [Text Block]	6 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments [Text Block]	13. DERIVATIVE FINANCIAL INSTRUMENTS The MUFG Group uses various derivative financial instruments both for trading purposes and for purposes other than trading (primarily risk management purposes) in the normal course of business to meet the financial needs of its customers, as a source of revenue and to manage its exposures to a variety of risks. See Note 24 to the consolidated financial statements for the fiscal year ended March 31, 2019 for a further discussion of the MUFG Group’s use of derivative instruments. During the six months ended September 30, 2019, there was no change in the MUFG Group’s use of derivative instruments that had a material impact on the MUFG Group’s financial position and results of operations. Derivatives Designated as Hedges The MUFG Group adopts hedging strategies and applies hedge accounting to certain derivative transactions entered mainly by Cash Flow Hedges From time to time, MUFG Americas Holdings uses interest rate derivatives to hedge the risk of changes in cash flows attributable to changes in the designated interest rate on LIBOR indexed loans, and to a lesser extent, to hedge interest rate risk on rollover debt. MUFG Americas Holdings used interest rate derivatives with an aggregate notional amount of ¥377.3 billion at June 30, 2019 to hedge the risk of changes in cash flows attributable to changes in the designated interest rates from variable rate loans. MUFG Americas Holdings used interest rate derivatives with an aggregate notional amount of ¥7.4 billion at June 30, 2019 to hedge the risk of changes in cash flows attributable to changes in the designated interest rate on LIBOR indexed short-term borrowings . 2.8 years. For cash flow hedges, changes in the fair value of the hedging instruments are ¥8.6 billion of losses from A ccumulated OCI Fair Value Hedges MUFG Americas Holdings engaged in an interest rate hedging strategy in which one or more interest rate derivatives were associated with a specified interest Prior to December 2018, for fair value hedges, any ineffectiveness was recognized in noninterest expense in the period in which it arose. The change in the fair value of the hedged item and the hedging instrument, to the extent completely effective, offset with no impact on earnings. For the six months ended June 30, 2018, MUFG Americas Holdings recorded losses on the hedging instruments and gains on the hedged liability, both of which were less than ¥ billion. For the six months ended June 30, 2019, MUFG Americas Holdings did not have any fair value hedges. Notional Amounts of Derivative Contracts The following table summarizes the notional amounts of derivative contracts at March 31, 2019 and September 30, 2019: Notional amounts (1) March 31, September 30, (in trillions) Interest rate contracts ¥ 1,409.6 ¥ 1,457.5 Foreign exchange contracts 230.5 237.6 Equity contracts 6.4 7.2 Commodity contracts 0.2 0.2 Credit derivatives 7.2 7.8 Others 3.0 3.0 Total ¥ 1,656.9 ¥ 1,713.3 Note: (1) Includes both written and purchased positions. Impact of Derivatives on the Condensed Consolidated Balance Sheets The following table summarizes fair value information on derivative instruments that are recorded on the MUFG Group’s condensed consolidated balance sheets at March 31, 2019 and September 30, 2019: Fair value of derivative instruments March 31, 2019 (1)(5) September 30, 2019 (1)(5) Not designated (2) Designated (3) Total (4) Not designated (2) Designated (3) Total (4) (in billions) Derivative assets: Interest rate contracts ¥ 10,108 ¥ 1 ¥ 10,109 ¥ 11,734 ¥ — ¥ 11,734 Foreign exchange contracts 2,795 — 2,795 2,967 1 2,968 Equity contracts 188 — 188 149 — 149 Commodity contracts 27 — 27 28 — 28 Credit derivatives 84 — 84 95 — 95 Others 2 — 2 1 — 1 Total derivative assets ¥ 13,204 ¥ 1 ¥ 13,205 ¥ 14,974 ¥ 1 ¥ 14,975 Derivative liabilities: Interest rate contracts ¥ 9,896 ¥ — ¥ 9,896 ¥ 11,217 ¥ — ¥ 11,217 Foreign exchange contracts 2,671 — 2,671 2,773 3 2,776 Equity contracts 183 — 183 189 — 189 Commodity contracts 27 — 27 26 — 26 Credit derivatives 69 — 69 84 — 84 Others (6) (136 ) — (136 ) (110 ) — (110 ) Total derivative liabilities ¥ 12,710 ¥ — ¥ 12,710 ¥ 14,179 ¥ 3 ¥ 14,182 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/liabilities except for (6). (3) The MUFG Group adopts hedging strategies and applies hedge accounting to certain derivative transactions entered into by certain subsidiaries (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 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. (6) Others mainly include bifurcated embedded derivatives carried at fair value, which are presented in Deposits and Long-term debt. Impact of Derivatives and Hedged Items on the Condensed Consolidated Statements of Income and Accumulated OCI The following tables provide more detailed information regarding the derivative-related impact on the accompanying condensed consolidated statements of income and Accumulated OCI by accounting designation for the six months ended September 30, 2018 and 2019: Gains and losses for trading and risk management derivatives (not designated as hedging instruments) Trading and risk management derivatives gains and losses Foreign exchange Trading account Total (in billions) Six months ended September 30, 2018: Interest rate contracts ¥ — ¥ (53 ) ¥ (53 ) Foreign exchange contracts (287 ) — (287 ) Equity contracts — (115 ) (115 ) Credit derivatives — (5 ) (5 ) Others (5 ) (55 ) (60 ) Total ¥ (292 ) ¥ (228 ) ¥ (520 ) Six months ended September 30, 2019: Interest rate contracts ¥ — ¥ 122 ¥ 122 Foreign exchange contracts (185 ) — (185 ) Equity contracts — (58 ) (58 ) Commodity contracts — (15 ) (15 ) Credit derivatives — (23 ) (23 ) Others — (48 ) (48 ) Total ¥ (185 ) ¥ (22 ) ¥ (207 ) Gains and losses for derivatives designated as cash flow hedges Six months ended September 30, 2018 2019 (in billions) Gains (losses) recognized in Accumulated OCI on derivative instruments Interest rate contracts ¥ (11 ) ¥ 8 Foreign exchange contracts ¥ — ¥ (2 ) Total ¥ (11 ) ¥ 6 Losses reclassified from Accumulated OCI into income (1) Interest rate contracts ¥ (1 ) ¥ (5 ) Foreign exchange contracts ¥ — ¥ (1 ) Total ¥ (1 ) ¥ (6 ) Note: (1) Mainly included in Interest income and Interest expense. Embedded Derivatives Features embedded in other non-derivative of a derivative. The change in the fair value of such an embedded derivative is recognized currently in earnings, unless it qualifies as a hedge. The fair value of the embedded derivative is presented in the accompanying condensed consolidated balance sheets with the host contract. Credit Derivatives The MUFG Group enters into credit derivatives to manage its credit risk exposure, to facilitate client transactions, and for proprietary trading purposes, under which they provide the counterparty protection against the risk of default on a set of debt obligations issued by a specified reference entity or entities. See Note 24 to the consolidated financial statements for the fiscal year ended March 31, 2019 for a more detailed explanation and discussion of credit derivatives. The table below summarizes certain information regarding protection sold through credit derivatives as of March 31, 2019 and September 30, 2019: Protection sold Maximum potential/Notional amount Fair value At March 31 , 2019 : 1 year 1-5 Over Total (Asset)/ (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 378,527 ¥ 1,603,962 ¥ 145,689 ¥ 2,128,178 ¥ (30,303 ) Non-investment 112,901 238,330 5,672 356,903 (127 ) Not rated — 5,097 — 5,097 (47 ) Total 491,428 1,847,389 151,361 2,490,178 (30,477 ) Index and basket credit default swaps held by BK: Investment grade (2) — 120,854 — 120,854 (82 ) Non-investment — 101,001 — 101,001 (2,010 ) Total — 221,855 — 221,855 (2,092 ) Index and basket credit default swaps held by SCHD: Investment grade (2) 13,000 194,618 8,000 215,618 (3,853 ) Non-investment — — — — — Not rated 8,863 206,832 3,444 219,139 (3,043 ) Total 21,863 401,450 11,444 434,757 (6,896 ) Total index and basket credit default swaps sold 21,863 623,305 11,444 656,612 (8,988 ) Total credit default swaps sold 513,291 2,470,694 162,805 3,146,790 (39,465 ) Other credit derivatives sold (3) Investment grade 77,693 — — 77,693 (620 ) Total credit derivatives ¥ 590,984 ¥ 2,470,694 ¥ 162,805 ¥ 3,224,483 ¥ (40,085 ) Protection sold Maximum potential/Notional amount by Fair value At September 30, 2019: 1 year 1-5 Over Total (Asset)/ (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 309,164 ¥ 2,106,326 ¥ 204,179 ¥ 2,619,669 ¥ (53,843 ) Non-investment 90,915 233,751 6,563 331,229 (1,168 ) Not rated — 10,848 — 10,848 2 Total 400,079 2,350,925 210,742 2,961,746 (55,009 ) Index and basket credit default swaps held by BK: Investment grade (2) — 74,275 — 74,275 (2 ) Non-investment grade — 98,207 — 98,207 (2,024 ) Not rated — 1,079 — 1,079 — Total — 173,561 — 173,561 (2,026 ) Index and basket credit default swaps held by SCHD: Investment grade (2) ¥ — ¥ 24,301 ¥ 831 ¥ 25,132 ¥ (603 ) Non-investment 14,000 159,000 9,000 182,000 (3,335 ) Not rated 16,491 247,850 3,920 268,261 (5,714 ) Total 30,491 431,151 13,751 475,393 (9,652 ) Total index and basket credit default swaps sold 30,491 604,712 13,751 648,954 (11,678 ) Total credit default swaps sold 430,570 2,955,637 224,493 3,610,700 (66,687 ) Other credit derivatives sold (3) Investment grade 75,544 — — 75,544 (2,596 ) Total credit derivatives ¥ 506,114 ¥ 2,955,637 ¥ 224,493 ¥ 3,686,244 ¥ (69,283 ) 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- (3) Other credit derivatives primarily consist of total return swaps. 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 ¥ billion and ¥ billion, respectively, at March 31, 2019, and approximately ¥ billion and ¥ billion, respectively, at September 30, 2019. Collateral is held by the MUFG Group in relation to these instruments. Collateral requirements are determined at the counterparty level and cover numerous transactions and products as opposed to individual contracts. Credit Risk, Liquidity Risk and Credit-risk-related Contingent Features Certain derivative instruments held by the MUFG Group contain provisions that require the MUFG Group’s debt to maintain an investment grade credit rating from each of the major credit rating agencies. If the MUFG Group’s debt were to fall below investment grade, it would be in violation of these provisions, and the counterparties to the derivative instruments could request payments on early termination or demand immediate and ongoing full overnight collateralization on derivative instruments in net liability positions. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position at March 31, 2019 and September 30, 2019 was approximately ¥0.6 trillion and ¥0.7 trillion, respectively, for which the MUFG Group has posted collateral of approximately ¥85 billion and ¥141 billion, respectively, in the normal course of business. The amount of additional collateral and early termination amount which could be requested if the MUFG Group’s debt falls below investment grade was ¥84 billion and ¥56 billion, respectively, as of March 31, 2019 and ¥68 billion and ¥78 billion, respectively, as of September 30, 2019.

Obligations under Guarantees an

Obligations under Guarantees and Other Off-balance Sheet Instruments [Text Block]	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Obligations under Guarantees and Other Off-balance Sheet Instruments [Text Block]	14. OBLIGATIONS UNDER GUARANTEES AND OTHER OFF-BALANCE Obligations under Guarantees The MUFG Group provides customers with a variety of guarantees and similar arrangements as described in Note 25 to the consolidated financial statements for the fiscal year ended March 31, 2019. The table below presents the contractual or notional amounts of such guarantees at March 31, 2019 and September 30, 2019: March 31, September 30, (in billions) Standby letters of credit and financial guarantees ¥ 3,901 ¥ 3,986 Performance guarantees 3,256 3,172 Derivative instruments (1)(2) 58,025 60,002 Liabilities of trust accounts 11,520 12,394 Others 53 76 Total ¥ 76,755 ¥ 79,630 Notes: (1) Credit derivatives sold by the MUFG Group are excluded from this presentation. (2) Derivative instruments that are deemed to be included within the definition of guarantees as prescribed in the guidance on guarantees include certain written options and credit default swaps. Performance Risk The MUFG Group monitors performance risk of its guarantees using the same credit rating system utilized for estimating probabilities of default with its loan portfolio. The MUFG Group’s credit rating system is consistent with both the method of evaluating credit risk under Basel III and those of third-party credit rating agencies. On certain underlying referenced credits or entities, ratings are not available. Such referenced credits are included in the “Not rated” category in the following tables. Presented in the tables below is the maximum potential amount of future payments classified based upon internal credit ratings as of March 31, 2019 and September 30, 2019. The determination of the maximum potential future payments is based on the notional amount of the guarantees without consideration of possible recoveries under recourse provisions or from collateral held or pledged. Such amounts do not represent the anticipated losses, if any, on these guarantees. At March 31, 2019: Maximum Amount by borrower grade Normal Close (1) Likely to (1) Not rated (in billions) Standby letters of credit and financial guarantees ¥ 3,901 ¥ 3,779 ¥ 98 ¥ 21 ¥ 3 Performance guarantees 3,256 3,070 79 78 29 Total ¥ 7,157 ¥ 6,849 ¥ 177 ¥ 99 ¥ 32 At September 30, 2019: Maximum Amount by borrower grade Normal Close (1) Likely to (1) Not rated (in billions) Standby letters of credit and financial guarantees ¥ 3,986 ¥ 3,855 ¥ 91 ¥ 37 ¥ 3 Performance guarantees 3,172 2,976 127 45 24 Total ¥ 7,158 ¥ 6,831 ¥ 218 ¥ 82 ¥ 27 Note: (1 ) See Notes of the tables regarding “the maximum potential amount of future payments classified based upon internal credit ratings “in Note 25 to the consolidated financial statements for the fiscal year ended March 31, 2019. The guarantees the MUFG Group does not classify based upon internal credit ratings are described in Note 25 to the consolidated financial statements for the fiscal year ended March 31, 2019. Other Off-balance In addition to obligations under guarantees and similar arrangements set forth above, the MUFG Group issues other off-balance March 31, September 30, (in billions) Commitments to extend credit ¥ 77,273 ¥ 78,181 Commercial letters of credit 1,057 826 Commitments to make investments 240 240 Other 5 6

Contingent Liabilities _Text Bl

Contingent Liabilities [Text Block]	6 Months Ended
	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities [Text Block]	15. CONTINGENT LIABILITIES Repayment of Excess Interest The Japanese government implemented regulatory reforms affecting the consumer lending industry. In December 2006, the Diet passed legislation to reduce the maximum permissible interest rate under the Act Regulating the Receipt of Contributions, the Receipt of Deposits, and Interest Rates from 29.2% per annum to 20% per annum. The reduction in interest rates was implemented in June 2010. The regulatory reforms also included amendments to the Money Lending Business Act which, effective June 18, 2010, abolished the so-called Under the regulatory reforms, all interest rates for loans originated after this reform are subject to the lower limits imposed by the Interest Rate Restriction Act. Furthermore, the new regulations require stringent review procedures for consumer finance companies before lending, and with the exception of certain provisions, one of those new regulations introduces a limit on aggregate credit extensions to one-third Formerly, consumer finance companies were able to charge interest rates exceeding the limits stipulated by the Interest Rate Restriction Act so long as the payment was made voluntarily by the borrowers, and the lender complied with various notice and other requirements. Accordingly, MUFG’s consumer finance subsidiaries and equity method investees offered loans at interest rates above the Interest Rate Restriction Act. Upon the implementation of the regulatory reforms in June 2010, they lowered the interest rates for loans originated after this reform to below the Interest Rate Restriction Act. In 2006, the Supreme Court of Japan passed decisions in a manner more favorable to borrowers requiring reimbursement of previously paid interest exceeding the limits stipulated by the Interest Rate Restriction Act in certain circumstances. Borrowers’ claims for reimbursement of excess interest arose after such decisions and other regulatory changes. 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 ¥24,983 million and ¥19,598 million as of March 31, 2019 and September 30, 2019, respectively. Provision (reversal) related to the allowance for the six months ended September 30, 2018 and 2019 were not material. Litigation In the ordinary course of business, the MUFG Group is subject to various litigation and regulatory matters. In accordance with applicable accounting guidance, the MUFG Group establishes an accrued liability for loss contingencies arising from litigation and regulatory matters when they are determined to be probable in their occurrence and the probable loss amount can be reasonably estimated. Based upon current knowledge and consultation with counsel, management believes the eventual outcome of such litigation and regulatory matters, where losses are probable and the probable loss amounts can be reasonably estimated, would not have a material adverse effect on the MUFG Group’s financial position, results of operations or cash flows. Additionally, management believes the amount of loss that is reasonably possible, but not probable, from various litigation and regulatory matters is not material to the MUFG Group’s financial position, results of operations or cash flows.

Variable Interest Entities _Tex

Variable Interest Entities [Text Block]	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Variable Interest Entities [Text Block]	16. VARIABLE INTEREST ENTITIES In the normal course of business, the MUFG Group has financial interests and other contractual obligations in various entities which may be deemed to be VIEs such as asset-backed conduits, various investment funds, special purpose entities created for structured financing, repackaged instruments, entities created for the securitization of the MUFG Group’s assets, and trust arrangements. See Note 26 to the consolidated financial statements for the fiscal year ended March 31, 2019 for further information about the MUFG Group’s involvements with VIEs. The following tables present the assets and liabilities of consolidated VIEs recorded on the accompanying condensed consolidated balance sheets at March 31, 2019 and September 30, 2019: Consolidated VIEs Consolidated assets At March 31, 2019: Total Cash and Interest-earning Trading Investment Loans All other (in millions) Asset-backed conduits ¥ 6,698,146 ¥ 92,310 ¥ 26,101 ¥ 3,005 ¥ 1,424,444 ¥ 5,124,462 ¥ 27,824 Investment funds 680,922 — 14,113 477,239 18,118 — 171,452 Special purpose entities created for structured financing 203,458 — 2,214 — — 127,243 74,001 Repackaged instruments 279,327 506 — 53,346 137,509 86,753 1,213 Securitization of the MUFG Group’s assets 10,208,496 — — — — 10,183,624 24,872 Trust arrangements 7,888,210 — 8,953 202 311,412 7,565,862 1,781 Others 34,303 362 1,635 — 42 9,699 22,565 Total consolidated assets before elimination 25,992,862 93,178 53,016 533,792 1,891,525 23,097,643 323,708 The amounts eliminated in consolidation (7,772,776 ) (93,171 ) (29,361 ) (5,102 ) (63,331 ) (7,552,315 ) (29,496 ) Total consolidated assets ¥ 18,220,086 ¥ 7 ¥ 23,655 ¥ 528,690 ¥ 1,828,194 ¥ 15,545,328 ¥ 294,212 Consolidated liabilities Total Deposits Other Long-term All other (in millions) Asset-backed conduits ¥ 6,691,362 ¥ — ¥ 4,678,588 ¥ 1,552,572 ¥ 460,202 Investment funds 6,852 — — 5,158 1,694 Special purpose entities created for structured financing 114,469 — 609 111,523 2,337 Repackaged instruments 277,179 — 48,014 174,215 54,950 Securitization of the MUFG Group’s assets 10,167,632 — — 10,162,231 5,401 Trust arrangements 7,881,332 7,616,575 — — 264,757 Others 32,584 — 8,611 1,474 22,499 Total consolidated liabilities before elimination 25,171,410 7,616,575 4,735,822 12,007,173 811,840 The amounts eliminated in consolidation (14,676,389 ) (50,396 ) (2,996,041 ) (11,517,019 ) (112,933 ) The amount of liabilities with recourse to the general credit of the MUFG Group (9,922,307 ) (7,566,179 ) (1,719,246 ) (121 ) (636,761 ) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 572,714 ¥ — ¥ 20,535 ¥ 490,033 ¥ 62,146 Consolidated VIEs Consolidated assets At September 30, 2019: Total Cash and Interest-earning Trading Investment Loans All other (in millions) Asset-backed conduits ¥ 6,258,951 ¥ 42,849 ¥ 29,798 ¥ 9,640 ¥ 1,280,174 ¥ 4,869,809 ¥ 26,681 Investment funds 868,307 — 15,064 586,508 24,635 — 242,100 Special purpose entities created for structured financing 212,667 — 2,246 — — 115,375 95,046 Repackaged instruments 286,959 504 3,000 46,652 134,281 99,787 2,735 Securitization of the MUFG Group’s assets 11,373,985 — — — — 11,351,035 22,950 Trust arrangements 7,546,940 — 1,566 154,754 499,070 6,890,574 976 Others 30,335 353 1,755 — 50 8,120 20,057 Total consolidated assets before elimination 26,578,144 43,706 53,429 797,554 1,938,210 23,334,700 410,545 The amounts eliminated in consolidation (7,142,350 ) (43,671 ) (26,857 ) (7,904 ) (163,035 ) (6,877,846 ) (23,037 ) Total consolidated assets ¥ 19,435,794 ¥ 35 ¥ 26,572 ¥ 789,650 ¥ 1,775,175 ¥ 16,456,854 ¥ 387,508 Consolidated liabilities Total Deposits Other Long-term All other (in millions) Asset-backed conduits ¥ 6,247,794 ¥ — ¥ 4,314,641 ¥ 1,490,152 ¥ 443,001 Investment funds 23,330 — — 5,392 17,938 Special purpose entities created for structured financing 117,285 — 308 114,935 2,042 Repackaged instruments 285,596 — 81,736 168,002 35,858 Securitization of the MUFG Group’s assets 11,344,643 — — 10,522,062 822,581 Trust arrangements 7,539,764 7,044,811 — — 494,953 Others 28,576 — 7,142 1,386 20,048 Total consolidated liabilities before elimination 25,586,988 7,044,811 4,403,827 12,301,929 1,836,421 The amounts eliminated in consolidation (15,332,750 ) (5,226 ) (2,487,360 ) (11,829,397 ) (1,010,767 ) The amount of liabilities with recourse to the general credit of the MUFG Group (9,662,129 ) (7,039,585 ) (1,881,746 ) — (740,798 ) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 592,109 ¥ — ¥ 34,721 ¥ 472,532 ¥ 84,856 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 non-consolidated non-consolidated Non-consolidated VIEs On-balance On-balance sheet At March 31, 2019: Total assets Maximum Total Trading Investment Loans All other Total All other (in millions) Asset-backed conduits ¥ 29,621,609 ¥ 6,221,274 ¥ 4,982,357 ¥ 659 ¥ 1,704,553 ¥ 3,277,145 ¥ — ¥ — ¥ — Investment funds 67,750,419 1,952,676 1,753,823 187,166 1,253,705 304,310 8,642 206 206 Special purpose entities created for structured financing 42,676,571 3,972,450 3,015,593 252,597 48,895 2,709,008 5,093 9,827 9,827 Repackaged instruments 12,885,367 3,477,545 3,383,161 690,305 2,169,798 478,252 44,806 6,087 6,087 Others 60,074,743 3,482,153 2,454,807 123,595 65,451 2,145,665 120,096 57,567 57,567 Total ¥ 213,008,709 ¥ 19,106,098 ¥ 15,589,741 ¥ 1,254,322 ¥ 5,242,402 ¥ 8,914,380 ¥ 178,637 ¥ 73,687 ¥ 73,687 Non-consolidated VIEs On-balance On-balance At September 30, 2019: Total assets Maximum Total Trading Investment Loans All other Total All other (in millions) Asset-backed conduits ¥ 28,764,664 ¥ 5,880,328 ¥ 4,768,093 ¥ 209 ¥ 1,730,253 ¥ 3,037,631 ¥ — ¥ — ¥ — Investment funds 77,435,115 2,387,773 2,189,030 485,904 1,172,673 508,348 22,105 905 905 Special purpose entities created for structured financing 40,927,261 3,897,816 2,927,608 360,859 44,726 2,515,702 6,321 14,957 14,957 Repackaged instruments 9,269,157 3,152,126 3,087,467 546,494 2,089,473 395,565 55,935 — — Others 56,608,382 2,991,332 2,118,362 140,756 9,353 1,882,405 85,848 35,542 35,542 Total ¥ 213,004,579 ¥ 18,309,375 ¥ 15,090,560 ¥ 1,534,222 ¥ 5,046,478 ¥ 8,339,651 ¥ 170,209 ¥ 51,404 ¥ 51,404 Maximum exposure to loss on each type of entity is determined based on the carrying amount of any on-balance off-balance on-balance

Fees and Commissions Income _Te

Fees and Commissions Income [Text Block]	6 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Fees and Commissions Income [Text Block]	17. FEES AND COMMISSIONS INCOME Disaggregation of Contract Revenue Details of fees and commissions income for the six months ended September 30, 2018 and 2019 are as follows: 2018 2019 (in millions) Fees and commissions on deposits ¥ 26,568 ¥ 26,731 Fees and commissions on remittances and transfers 84,342 83,541 Fees and commissions on foreign trading business 35,453 33,117 Fees and commissions on credit card business 110,223 118,916 Fees and commissions on security-related services 119,007 108,403 Fees and commissions on administration and management services for investment funds 74,928 71,981 Trust fees 57,459 58,948 Guarantee fees (1) 22,205 22,846 Insurance commissions 23,469 21,178 Fees and commissions on real estate business 17,878 21,094 Other fees and commissions (2) 133,906 131,708 Total ¥ 705,438 ¥ 698,463 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 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 18. The business segment information is derived from the internal management reporting system used by management to measure the performance of the MUFG Group’s business segments. In addition, the business segment information is primarily based on the financial information prepared in accordance with accounting principles generally accepted in Japan as adjusted in accordance with internal management accounting rules and practices. Further, the format and information as disclosed in Note 18 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 from the business activities relevant to Retail & Commercial Banking Business Group (“R&C”), with Global Commercial Banking Group (“GCB”) providing a smaller impact. The business activities relevant to fees and commissions on remittances and transfers are attributable to R&C, Japanese Corporate Investment Banking Group (“JCIB”), Global Corporate Investment Banking 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 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 R&C. 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 R&C, with GCB providing a smaller impact. The business activities relevant to fees and commissions on real estate business are attributable to R&C and JCIB with no significant concentration in any particular segments. Contract Balances Contract balances are recognized in the consolidated balance sheets in accordance with the definition of receivables and contract liabilities specified in the guidance on revenue from contracts with customers. Receivables include receivables for which the services are completed, and accrued income which represents the amount of consideration unpaid for the performance obligations that have been fulfilled pursuant to certain contracts under which the services are continuously provided. Contract liabilities include unearned revenue which represents the amount of consideration received for the performance obligations that have not been fulfilled pursuant to certain contracts under which the services are continuously provided. As of March 31, 2019 and September 30, 2019, receivables from contracts with customers of ¥185 billion and ¥189 billion, respectively, were included primarily in Other assets. As of March 31, 2019 and September 30, 2019, contract liabilities of ¥8 billion and ¥9 billion, respectively, were included in Other liabilities.

Business Segments _Text Block_

Business Segments [Text Block]	6 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Business Segments [Text Block]	18. BUSINESS SEGMENTS The reportable segments of the MUFG Group are subject to the periodical review by the Executive Committee, which represents the MUFG Group’s chief operating decision maker, to determine the allocation of management resources and assess performance. The MUFG Group has established its business units according to the characteristics of customers and the nature of the underlying business. Each business unit engages in business activities based on comprehensive strategies developed for and aimed at respective targeted customers and businesses. The business segment information is primarily based on the financial information prepared in accordance with accounting principles generally accepted in Japan as adjusted in accordance with internal management accounting rules and practices. Accordingly, the format and information are not consistent with the accompanying condensed consolidated financial statements prepared on the basis of U.S. GAAP. A reconciliation is provided for the total amounts of segments’ operating profit with income before income tax expense under U.S. GAAP. Effective April 1 , 2018 , the MUFG Group reorganized its business groups in an effort to further integrate the expertise and capabilities of its consolidated subsidiaries to respond to the needs of customers more effectively and efficiently, as part of its current medium-term business plan. To make and execute unified group-wide strategies based on customer characteristics and the nature of business, the MUFG Group integrated the operations of its consolidated subsidiaries into six business segments.—Retail & Commercial Banking, Japanese Corporate & Investment Banking, Global Corporate & Investment Banking, Global Commercial Banking, Asset Management & Investor Services, and Global Markets. The following is a brief explanation of the MUFG Group’s business segments: Retail & Commercial Banking Business Group Japanese Corporate & Investment Banking​​​​​​​ Business Group Global Corporate & Investment Banking Business Group non-Japanese Global Commercial Banking Business Group 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 Asset Management & Investor Services Business Group Global Markets Business Group Other Management does not use information on segments’ total assets to allocate resources and assess performance. Accordingly, business segment information on total assets is not presented. The MUFG Group made modifications to t • increasing the operating profits of the Retail & Commercial Banking Business Group, the Global Markets Business Group and Other by ¥0.3 billion, ¥1.0 billion and ¥16.1 billion, respectively; and • reducing the operating profits of the Japanese Corporate & Investment Banking Business Group, the Global Corporate & Investment Banking Business Group and the Global Commercial Banking Business Group by ¥5.2 billion, ¥4.8 billion and ¥7.4 billion, respectively. Prior period business segment information has been restated to enable comparison between the relevant amounts for the six months ended September 30, 2018 and 2019. Customer Business Retail & Japanese Global Global Asset Total Global Other Total (in billions) Six months ended September 30, 2018: Net revenue: ¥ 754.1 ¥ 261.6 ¥ 193.7 ¥ 335.8 ¥ 104.4 ¥ 1,649.6 ¥ 260.3 ¥ 24.3 ¥ 1,934.2 BK and TB (1) 361.9 199.9 130.0 (0.8 ) 49.0 740.0 165.7 109.6 1,015.3 Net interest income 232.1 75.5 56.8 (0.8 ) — 363.6 128.5 167.1 659.2 Net fees 114.2 97.7 73.0 — 49.0 333.9 (9.1 ) (23.4 ) 301.4 Other 15.6 26.7 0.2 — — 42.5 46.3 (34.1 ) 54.7 Other than BK and TB 392.2 61.7 63.7 336.6 55.4 909.6 94.6 (85.3 ) 918.9 Operating expenses 608.1 151.2 121.3 238.9 60.6 1,180.1 114.1 69.5 1,363.7 Operating profit (loss) ¥ 146.0 ¥ 110.4 ¥ 72.4 ¥ 96.9 ¥ 43.8 ¥ 469.5 ¥ 146.2 ¥ (45.2 ) ¥ 570.5 Six months ended September 30, 2019: Net revenue: ¥ 731.9 ¥ 265.0 ¥ 186.4 ¥ 371.3 ¥ 101.3 ¥ 1,655.9 ¥ 323.6 ¥ 36.7 ¥ 2,016.2 BK and TB (1) 352.1 200.4 128.5 (0.5 ) 45.6 726.1 226.9 62.8 1,015.8 Net interest income 225.8 83.0 56.3 0.4 0.8 366.3 66.7 57.6 490.6 Net fees 111.6 92.6 72.4 — 44.8 321.4 (6.3 ) (23.8 ) 291.3 Other 14.7 24.8 (0.2 ) (0.9 ) — 38.4 166.5 29.0 233.9 Other than BK and TB 379.8 64.6 57.9 371.8 55.7 929.8 96.7 (26.1 ) 1,000.4 Operating expenses 594.0 156.2 120.5 274.2 65.3 1,210.2 112.9 70.8 1,393.9 Operating profit (loss) ¥ 137.9 ¥ 108.8 ¥ 65.9 ¥ 97.1 ¥ 36.0 ¥ 445.7 ¥ 210.7 ¥ (34.1 ) ¥ 622.3 Note: (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. Reconciliation As set forth above, the measurement basis and the income and expense items of the internal management reporting system are different from the accompanying condensed consolidated statements of income. Therefore, it is impracticable to present reconciliations of all of the business segments’ information, other than operating profit, to corresponding items in the accompanying condensed consolidated statements of income. A reconciliation of operating profit under the internal management reporting system for the six months ended September 30, 2018 and 2019 above to income before income tax expense shown in the accompanying condensed consolidated statements of income is as follows: Six months ended 2018 2019 (in billions) Operating profit ¥ 571 ¥ 622 Reversal of (provision for) credit losses 71 (102 ) Foreign exchange losses—net (43 ) (32 ) Trading account profits (losses)—net (330 ) 505 Equity investment securities gains (losses)—net 391 (26 ) Debt investment securities gains (losses)—net 14 (136 ) Equity in earnings of equity method investees—net 140 165 Impairment of goodwill — (241 ) Reversal of ( p (42 ) 63 Other—net (76 ) 20 Income before income tax expense ¥ 696 ¥ 838

Fair Value _Text Block_

Fair Value [Text Block]	6 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value [Text Block]	19. FAIR VALUE For a discussion and explanation of the MUFG Group’s valuation methodologies for assets and liabilities measured at fair value and the fair value hierarchy, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. During the six months ended September 30, 2019, there were no changes to the MUFG Group’s valuation methodologies that had a material impact on the MUFG Group’s financial position and results of operations. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following tables present the financial instruments carried at fair value by level within the fair value hierarchy as of March 31, 2019 and September 30, 2019: At March 31, 2019 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 12,821,328 ¥ 13,725,079 ¥ 785,326 ¥ 27,331,733 Debt securities Japanese national government and Japanese government agency bonds 2,117,841 512,134 — 2,629,975 Japanese prefectural and municipal bonds — 117,799 — 117,799 Foreign government and official institution bonds 9,264,028 454,365 792 9,719,185 Corporate bonds — 3,203,585 31,384 3,234,969 Residential mortgage-backed securities — 7,038,353 35,181 7,073,534 Asset-backed securities — 253,274 627,678 880,952 Other debt securities — 747 35,148 35,895 Commercial paper — 1,473,693 — 1,473,693 Equity securities (2) 1,439,459 671,129 55,143 2,165,731 Trading derivative assets 63,582 13,047,590 93,313 13,204,485 Interest rate contracts 23,430 10,067,719 17,307 10,108,456 Foreign exchange contracts 1,115 2,771,115 22,861 2,795,091 Equity contracts 39,037 139,666 9,000 187,703 Commodity contracts — 3,727 25,684 29,411 Credit derivatives — 65,363 18,461 83,824 Investment securities: Available-for-sale 22,550,086 10,684,983 283,434 33,518,503 Japanese national government and Japanese government agency bonds 20,635,872 3,441,824 — 24,077,696 Japanese prefectural and municipal bonds — 2,226,566 — 2,226,566 Foreign government and official institution bonds 1,914,214 707,959 19,246 2,641,419 Corporate bonds — 1,126,535 4,196 1,130,731 Residential mortgage-backed securities — 1,615,336 15 1,615,351 Commercial mortgage-backed securities — 128,917 2,038 130,955 Asset-backed securities — 1,371,467 131,455 1,502,922 Other debt securities — 66,379 126,484 192,863 Equity securities 5,982,629 375,914 27,820 6,386,363 Marketable equity securities 5,982,629 375,914 — 6,358,543 Nonmarketable equity securities (5) — — 27,820 27,820 Others (3) 807,193 42,184 32,378 881,755 Total ¥ 42,224,818 ¥ 37,875,750 ¥ 1,222,271 ¥ 81,322,839 Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 157,114 ¥ 5,796 ¥ — ¥ 162,910 Trading derivative liabilities 88,329 12,701,110 57,143 12,846,582 Interest rate contracts 35,179 9,839,618 21,496 9,896,293 Foreign exchange contracts 2,633 2,663,347 4,670 2,670,650 Equity contracts 50,517 126,737 6,138 183,392 Commodity contracts — 2,916 24,735 27,651 Credit derivatives — 68,492 104 68,596 Obligation to return securities received as collateral 2,912,355 174,671 — 3,087,026 Others (4) — 426,368 65,648 492,016 Total ¥ 3,157,798 ¥ 13,307,945 ¥ 122,791 ¥ 16,588,534 At September 30, 2019 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 14,173,666 ¥ 13,692,234 ¥ 682,862 ¥ 28,548,762 Debt securities Japanese national government and Japanese government agency bonds 3,020,794 491,006 — 3,511,800 Japanese prefectural and municipal bonds — 113,830 — 113,830 Foreign government and official institution bonds 9,518,196 493,023 3,601 10,014,820 Corporate bonds — 2,874,588 36,118 2,910,706 Residential mortgage-backed securities — 6,319,014 11,973 6,330,987 Commercial mortgage-backed securities — 811 — 811 Asset-backed securities — 409,497 536,427 945,924 Other debt securities — 16,088 34,196 50,284 Commercial paper — 2,044,252 — 2,044,252 Equity securities (2) 1,634,676 930,125 60,547 2,625,348 Trading derivative assets 87,912 14,775,434 110,752 14,974,098 Interest rate contracts 37,296 11,674,714 21,657 11,733,667 Foreign exchange contracts 2,456 2,912,812 51,634 2,966,902 Equity contracts 48,160 93,103 8,077 149,340 Commodity contracts — 3,331 25,768 29,099 Credit derivatives — 91,474 3,616 95,090 Investment securities: Available-for-sale 20,077,993 11,315,256 253,871 31,647,120 Japanese national government and Japanese government agency bonds 18,189,416 3,505,412 — 21,694,828 Japanese prefectural and municipal bonds — 2,560,514 — 2,560,514 Foreign government and official institution bonds 1,888,577 799,782 14,002 2,702,361 Corporate bonds — 1,211,976 5,736 1,217,712 Residential mortgage-backed securities — 1,657,888 15 1,657,903 Commercial mortgage-backed securities — 166,251 2,063 168,314 Asset-backed securities — 1,361,823 130,880 1,492,703 Other debt securities — 51,610 101,175 152,785 Equity securities 5,517,963 601,333 34,398 6,153,694 Marketable equity securities 5,517,963 601,333 — 6,119,296 Nonmarketable equity securities (5) — — 34,398 34,398 Others (3) 548,359 18,179 58,141 624,679 Total ¥ 40,405,893 ¥ 40,402,436 ¥ 1,140,024 ¥ 81,948,353 Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 382,820 ¥ 5,319 ¥ — ¥ 388,139 Trading derivative liabilities 138,690 14,096,679 55,464 14,290,833 Interest rate contracts 46,311 11,156,041 14,609 11,216,961 Foreign exchange contracts 4,477 2,762,772 5,671 2,772,920 Equity contracts 87,902 91,702 9,895 189,499 Commodity contracts — 1,823 25,198 27,021 Credit derivatives — 84,341 91 84,432 Obligation to return securities received as collateral 3,276,784 114,299 — 3,391,083 Others (4) — 465,392 39,103 504,495 Total ¥ 3,798,294 ¥ 14,681,689 ¥ 94,567 ¥ 18,574,550 Notes: (1) Includes securities measured under the fair value option. (2) Excludes certain investments valued at net asset value of private equity funds whose fair values at March 31, 2019 were ¥40,400 million and those at September 30, 2019 were ¥52,259 million, respectively. The amounts of unfunded commitments related to these private equity funds at March 31, 2019 were ¥94,483 million, and those at September 30, 2019 were ¥101,730 million, respectively. For the nature and details of these investments, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. (3) Mainly comprises 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 derivative assets designated as hedging instruments. ( 4 Includes other short-term borrowings, long-term debt, bifurcated embedded derivatives carried at fair value and derivative liabilities designated as hedging instruments. ( 5 Excludes certain investments valued at net asset value of real estate funds, private funds, and private equity funds whose fair values at March 31, 2019 ¥17,583 million, ¥9,921 million and nil respectively, and those at September 30, 2019 were ¥19,954 million, ¥9,797 million and ¥9,168 million, respectively. The amounts of unfunded commitments related to these real estate funds, private funds and private equity funds at March 31, 2019 were ¥2,054 million, nil and nil respectively, and those at September 30, 2019 were ¥2,047 million, nil and nil, respectively. For the nature and details of these investments, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. Changes in Level 3 Recurring Fair Value Measurements The following tables present a reconciliation of the assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the six months ended September 30, 2018 and 2019. The determination to classify a financial instrument within Level 3 is based upon the significance of the unobservable inputs to overall fair value measurement. However, Level 3 financial instruments typically include, in addition to the unobservable or Level 3 input, observable inputs (inputs that are actively quoted and can be validated to external sources). Accordingly, the gains and losses in the tables below include changes in fair value due in part to observable inputs used in the valuation techniques. Total gains (losses) Change in March 31, Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, (in millions) Assets Trading account assets: Trading securities (1) ¥ 827,493 ¥ 42,948 (2) ¥ — ¥ 274,937 ¥ — ¥ (177,306 ) ¥ (181,133 ) ¥ 4,532 ¥ (15,067 ) ¥ 776,404 ¥ 40,167 (2) Debt securities Foreign government and official institution bonds 1,047 214 — 40,600 — (40,710 ) (16 ) — — 1,135 6 Corporate bonds 23,092 682 — 729 — (193 ) (1,375 ) 4,532 (5) (15,067 ) (5) 12,400 642 Residential mortgage-backed securities 41,141 667 — — — — (3,072 ) — — 38,736 636 Asset-backed securities 684,637 38,155 — 216,109 — (136,388 ) (175,579 ) — — 626,934 36,181 Other debt securities 33,450 2,346 — — — — — — — 35,796 2,346 Equity securities 44,126 884 — 17,499 — (15 ) (1,091 ) — — 61,403 356 Trading derivatives—net 12,119 3,739 (2) (545 ) 582 (429 ) — (34,413 ) 23,922 8,424 13,399 (7,391 ) (2) Interest rate contracts—net 14,596 2,127 (134 ) — (94 ) — (18,154 ) 311 (1,798 ) (3,146 ) 2,256 Foreign exchange contracts—net 6,736 (12,064 ) (262 ) 18 — — (2,614 ) 23,611 (5) (2,863 ) 12,562 (11,544 ) Equity contracts—net (10,685 ) 13,488 (153 ) — — — (13,690 ) — 13,085 (5) 2,045 964 Commodity contracts—net 683 156 4 564 (335 ) — (1 ) — — 1,071 900 Credit derivatives—net 789 32 — — — — 46 — — 867 33 Investment securities: Available-for-sale 350,660 6,323 (3) (9,056 ) 131,326 — — (181,004 ) 102 (89 ) 298,262 (83 ) (3) Foreign government and official institution bonds 20,192 — (1,002 ) 242 — — (487 ) — — 18,945 — Corporate bonds 6,037 4 (3 ) 1,670 — — (5,318 ) 102 (89 ) 2,403 (83 ) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed securities 2,430 — (104 ) — — — (33 ) — — 2,293 — Asset-backed securities 161,172 6,319 (2,806 ) 129,400 — — (163,469 ) — — 130,616 — Other debt securities 160,814 — (5,141 ) 14 — — (11,697 ) — — 143,990 — Equity securities 28,359 (1,199 ) (3) — 2,203 — (825 ) — — (125 ) 28,413 (1,602 ) (3) Nonmarketable equity securities 28,359 (1,199 ) — 2,203 — (825 ) — — (125 ) 28,413 (1,602 ) Others 8,660 966 (7) (22 ) 8,601 — (183 ) — — — 18,022 872 (7) Total ¥ 1,227,291 ¥ 52,777 ¥ (9,623 ) ¥ 417,649 ¥ (429 ) ¥ (178,314 ) ¥ (396,550 ) ¥ 28,556 ¥ (6,857 ) ¥ 1,134,500 ¥ 31,963 Liabilities Others ¥ (25,528 ) ¥ (5,160 ) (4) ¥ 2,262 ¥ — ¥ 848 ¥ — ¥ (11,902 ) ¥ 14,454 (6) ¥ 24,235 (6) ¥ 5,005 ¥ (1,049 ) (4) Total ¥ (25,528 ) ¥ (5,160 ) ¥ 2,262 ¥ — ¥ 848 ¥ — ¥ (11,902 ) ¥ 14,454 ¥ 24,235 ¥ 5,005 ¥ (1,049 ) Total gains (losses) Change in March 31, Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, (in millions) Assets Trading account assets: Trading securities (1) ¥ 785,326 ¥ (20,158 ) (2) ¥ — ¥ 134,609 ¥ — ¥ (120,505 ) ¥ (105,890 ) ¥ 24,882 ¥ (15,402 ) ¥ 682,862 ¥ (19,011 ) (2) Debt securities Foreign government and official institution 792 347 — 50,548 — (48,068 ) (18 ) — — 3,601 (11 ) Corporate bonds 31,384 (76 ) — — — (1,049 ) (3,621 ) 24,882 (5) (15,402 ) (5) 36,118 6 Residential mortgage-backed securities 35,181 (1,425 ) — — — (11,134 ) (10,649 ) — — 11,973 (1,109 ) Asset-backed securities 627,678 (20,780 ) — 79,717 — (60,249 ) (89,939 ) — — 536,427 (18,740 ) Other debt securities 35,148 (952 ) — — — — — — — 34,196 (952 ) Equity securities 55,143 2,728 — 4,344 — (5 ) (1,663 ) — — 60,547 1,795 Trading derivatives—net 36,170 4,283 (2) (107 ) 99 (773 ) — (21,616 ) 37,553 (321 ) 55,288 1,797 (2) Interest rate contracts—net (4,189 ) 14,185 (113 ) — — — (5,471 ) 2,976 (340 ) 7,048 6,246 Foreign exchange contracts—net 18,191 (10,614 ) (87 ) 3 — — 4,037 34,577 (5) (144 ) 45,963 (5,580 ) Equity contracts—net 2,862 743 87 96 (419 ) — (5,350 ) — 163 (1,818 ) 703 Commodity contracts—net 949 (27 ) 2 — (354 ) — — — — 570 645 Credit derivatives—net 18,357 (4 ) 4 — — — (14,832 ) — — 3,525 (217 ) Investment securities: Available-for-sale 283,434 1,331 (3) (5,379 ) 134,575 — — (162,520 ) 5,450 (3,020 ) 253,871 (619 ) (3) Foreign government and official institution bonds 19,246 — 209 382 — — (5,835 ) — — 14,002 — Corporate bonds 4,196 (383 ) 114 20 — — (641 ) 5,450 (5) (3,020 ) (5) 5,736 (619 ) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed securities 2,038 — 58 — — — (33 ) — — 2,063 — Asset-backed securities 131,455 1,714 (3,914 ) 134,169 — — (132,544 ) — — 130,880 — Other debt securities 126,484 — (1,846 ) 4 — — (23,467 ) — — 101,175 — Equity securities 27,820 2,660 (3) — 5,636 — (1,515 ) (1 ) — (202 ) 34,398 1,736 (3) Nonmarketable equity securities 27,820 2,660 — 5,636 — (1,515 ) (1 ) — (202 ) 34,398 1,736 Others 32,378 (8,350 ) (7) (1,732 ) 35,894 — (48 ) (1 ) — — 58,141 (8,346 ) (7) Total ¥ 1,165,128 ¥ (20,234 ) ¥ (7,218 ) ¥ 310,813 ¥ (773 ) ¥ (122,068 ) ¥ (290,028 ) ¥ 67,885 ¥ (18,945 ) ¥ 1,084,560 ¥ (24,443 ) Liabilities Others ¥ 65,648 ¥ (18,504 ) (4) ¥ 1,807 ¥ — ¥ 2,338 ¥ — ¥ (9,708 ) ¥ 1,171 (6) ¥ (37,043 ) (6) ¥ 39,103 ¥ (16,212 ) (4) Total ¥ 65,648 ¥ (18,504 ) ¥ 1,807 ¥ — ¥ 2,338 ¥ — ¥ (9,708 ) ¥ 1,171 ¥ (37,043 ) ¥ 39,103 ¥ (16,212 ) Notes: (1 ) Includes Trading securities measured under the fair value option. (2 ) Included in Trading account profits (losses)—net and in Foreign exchange losses—net. (3 ) Included in Investment securities gains—net. (4 ) Included in Trading account profits (losses)—net. (5 ) Transfers into Level 3 for Foreign exchange contract were mainly caused by the valuation using certain unobservable input. Transfers into (out of) Level 3 for corporate bonds were mainly caused by the decrease (increase) in liquidity or the availability of the quoted prices provided by third-party venders and Equity contracts—net were mainly caused by the change of valuation model and the change cease using certain unobservable input. (6 ) Transfers into (out of) Level 3 for bifurcated embedded derivatives in Others 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 com m s non-interest 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, 2019 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted a (2) (in millions) Assets Trading securities and Investment securities: Foreign government and official institution bonds ¥ 19,246 Return on equity method Probability of default 0.0%~ 0.4 0.3 % Recovery rate 60.0%~70.0% 66.7 % Market-required return on capital 10.0 10.0 Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities 109,213 Discounted cash flow Probability of default 1.2 5.3 5.0 % Recovery rate 60.0 76.0 67.2 % Loan price 90.5%~100.3% 95.4 % 587,577 Internal model (4) Asset correlations 10.0% 10.0 % Discount factor 1.0%~1.2% 1.2 % Prepayment rate 22.7% 22.7 % Probability of default 0.0 90.1 —​​​​​​​ (3) Recovery rate 64.3% 64.3 % Other debt securities 35,148 Discounted cash flow Liquidity premium 1.0%~2.4% 1.3 % 112,822 Return on equity method Probability of default 0.0 25.0 0.3 % Recovery rate 40.0 90.0 78.0 % Market-required return on capital 8.0 10.0 9.5 % At March 31, 2019 Fair value (1) Valuation technique Significant unobservable inputs Range (in millions) Trading derivatives—net: Interest rate (4,189 ) Option model Probability of default 0.0%~12.0% Correlation between interest rates 29.2%~51.3% Correlation between interest rate and foreign exchange rate 22.8%~60.0% Recovery rate 41.0%~48.0% Volatility 11.0%~71.3% Foreign exchange contracts—net 18,198 Option model Probability of default 0.0%~12.0% Correlation between interest rates 35.0%~70.0% Correlation between interest rate and foreign exchange rate 14.8%~60.0% Recovery rate 41.0%~48.0% Correlation between underlying assets 65.0% Volatility 9.7%~18.2% Equity contracts—net (2,727 ) Option model Correlation between foreign exchange rate and equity 7.0%~64.1% Correlation between equities 21.6%~80.3% Correlation between underlying assets 51.7%~82.0% Volatility 21.0%~30.0% 5,878 Discounted cash flow Term of litigation 1.0year At September 30, 2019 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted a (2) (in millions) Assets Trading securities and Investment securities: Foreign government and official institution bonds ¥ 14,002 Return on equity method Probability of default 0.1%~1.3% 0.4 % Recovery rate 55.0%~90.0% 70.4 % Market-required return on capital 8.0%~ 10.0% 10.0 % Corporate bonds 5,212 Discounted cash flow Probability of default 7.2% 7.2% Recovery rate 41.0%~70.3% 42.5% Residential mortgage- backed securities, Commercial mortgage- backed securities and Asset-backed securities 81,804 Discounted cash flow Probability of default 1.2%~5.3% 5.0 % Recovery rate 60.0%~76.0% 67.7 % 504,203 Internal model (4) Asset correlations 10.0% 10.0 % Discount factor 1.1%~ 1.5% 1.4 % Prepayment rate 16.3% 16.3 % Probability of default 0.0%~86.3% — (3) Recovery rate 63.8% 63.8 % Other debt securities 34,196 Discounted cash flow Liquidity premium 1.0%~2.4% 1.3 % 87,626 Return on equity method Probability of default 0.0%~25.0% 0.3 % Recovery rate 60.0%~90.0% 79.6 % Market-required return on capital 8.0%~10.0% 9.4 % At September 30, 2019 Fair value (1) Valuation technique Significant unobservable inputs Range (in millions) Trading derivatives—net: Interest rate contracts—net 6,775 Option model Probability of default 0.0%~11.3% Correlation between interest rates 34.2%~58.3% Correlation between interest rate and foreign exchange rate 25.8%~60.0% Recovery rate 41.0%~48.0% Volatility 0.0%~100.0% Foreign exchange contracts—net 45,967 Option model Probability of default 0.0%~11.3% Correlation between interest rates 35.0%~70.0% Correlation between interest rate and foreign exchange rate 13.9%~60.0% Recovery rate 41.0%~48.0% Correlation between underlying assets 60.0% Volatility 8.1%~18.0% Equity contracts—net (7,097 ) Option model Correlation between foreign exchange rate and equity 7.0%~ 58.2% Correlation between equities 20.7%~73.7% Correlation between underlying assets 51.7%~82.0% Volatility 12.2%~30.0% 5,854 Discounted cash flow Term of litigation 0.6 Credit derivatives—net 1,735 Internal model Correlation between interest rate and foreign exchange rate 33.9% Notes: (1) The fair value as of March 31, 2019 and September 30, 2019 excludes the fair value of investments valued using vendor prices. (2) Weighted averages are calculated by weighing each input by the relative fair value of the respective financial instruments. (3) See “Probability of default” in “Sensitivity to and range of unobservable inputs” in Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. (4) For further detail of Internal model, refer to the last paragraph of “Trading Account Assets and Liabilities—Trading Account Securities” in Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. Sensitivity to and range of unobservable inputs For a discussion of the impact on fair value of changes in unobservable inputs and the relationships between unobservable inputs as well as a description of attributes of the underlying instruments and external market factors that affect the range of inputs used in the valuation of the MUFG Group’s Level 3 financial instruments, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Certain assets and liabilities may be measured at fair value on a nonrecurring basis in periods subsequent to their initial recognition. These assets are subject to fair value adjustments that result from the application of the lower of cost or fair value accounting, write-downs of individual assets or the measurement alternative for nonmarketable equity securities. See Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019 for further information on assets and liabilities measured at fair value on a nonrecurring basis. The following table presents the carrying value of assets measured at fair value on a nonrecurring basis by level within the fair value hierarchy as of March 31, 2019 and September 30, 2019: March 31, 2019 September 30, 2019 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total (in millions) Assets Investment securities (1)(2) ¥ — ¥ 80,779 ¥ 4,208 ¥ 84,987 ¥ — ¥ 7,300 ¥ 2,474 ¥ 9,774 Loans 2,656 9,104 250,678 262,438 2,469 7,586 262,451 272,506 Loans held for sale — — 77,506 77,506 — — 75,319 75,319 Collateral dependent loans 2,656 9,104 173,172 184,932 2,469 7,586 187,132 197,187 Premises and equipment — — 35,352 35,352 — — 13,595 13,595 Intangible assets — — 19,635 19,635 — — 395 395 Other assets 136,528 49,756 9,774 196,058 17,986 43,905 14,614 76,505 Investments in equity method investees (1) 136,528 49,756 — 186,284 17,986 — 5,911 23,897 Other — — 9,774 9,774 — 43,905 (3) 8,703 52,608 Total ¥ 139,184 ¥ 139,639 ¥ 319,647 ¥ 598,470 ¥ 20,455 ¥ 58,791 ¥ 293,529 ¥ 372,775 Notes: (1 ) Excludes certain investments valued at net asset value of ¥8,866 million and ¥3,230 million at March 31, 2019 and September 30, 2019, respectively. The unfunded commitments related to these investments are ¥12,242 million and ¥ 12,176 (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 ) Includes certain held for sale assets that are measured at fair value on a nonrecurring basis, including impairment. The following table presents losses (gains) recorded as a result of changes in the fair value of assets measured at fair value on a nonrecurring basis for the six months ended September 30, 2018 and 2019: Losses(gains) for the 2018 2019 (in millions) Investment securities ¥ (8,013 ) ¥ 2,193 Loans 23,727 30,664 Loans held for sale 3 8,468 Collateral dependent loans 23,724 22,196 Premises and equipment 3,552 5,975 Intangible assets 667 2,334 Goodwill — 241,356 Other assets 10,696 15,437 Investments in equity method investees 10,034 4,944 Other 662 10,493 Total ¥ 30,629 ¥ 297,959 Fair Value Option For a discussion of the primary financial instruments for which the fair value option was previously elected, including the basis for those, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. The following table presents the gains or losses recorded for the six months ended September 30, 2018 and 2019 related to the eligible instruments for which the MUFG Group elected the fair value option: Six months ended September 30, 2018 2019 Trading Foreign Total Trading Foreign Total (in millions) Financial assets: Trading account securities (1) ¥ (157,359 ) ¥ 638,886 ¥ 481,527 ¥ 437,931 ¥ (654,622 ) ¥ (216,691 ) Total ¥ (157,359 ) ¥ 638,886 ¥ 481,527 ¥ 437,931 ¥ (654,622 ) ¥ (216,691 ) Financial liabilities: Other short-term borrowings (2) ¥ (1,446 ) ¥ — ¥ (1,446 ) ¥ (778 ) ¥ — ¥ (778 ) Long-term debt (2) (6,491 ) — (6,491 ) (20,559 ) — (20,559 ) Total ¥ (7,937 ) ¥ — ¥ (7,937 ) ¥ (21,337 ) ¥ — ¥ (21,337 ) The following table presents the differences between the aggregate fair value and the aggregate remaining contractual principal balance outstanding as of March 31, 2019 and September 30, 2019 for long-term debt instruments for which the fair value option has been elected: March 31, 2019 September 30, 2019 Remaining Fair value Fair value Remaining Fair value Fair value (in millions) Financial liabilities: Long-term debt ¥ 358,730 ¥ 325,808 ¥ (32,922 ) ¥ 319,736 ¥ 299,768 ¥ (19,968 ) Total ¥ 358,730 ¥ 325,808 ¥ (32,922 ) ¥ 319,736 ¥ 299,768 ¥ (19,968 ) Interest income and expense related to the assets and liabilities for which the fair value option is elected are measured based on the contractual rates and dividend income related to these assets are recognized when the shareholder right to receive the dividend is established. These interest income and expense and dividend income are reported in the accompanying condensed consolidated statements of income as either interest income or expense, depending on the nature of the related asset or liability. Estimated Fair Value of Financial Instruments The following is a summary of carrying amounts and estimated fair values by level within the fair value hierarchy of financial instruments which are not carried at fair value on a recurring basis in the accompanying condensed consolidated balance sheets as of March 31, 2019 and September 30, 2019: At March 31, 2019 Carrying Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 33,924 ¥ 33,924 ¥ 33,924 ¥ — ¥ — Interest-earning deposits in other banks 40,647 40,647 — 40,647 — Call loans and funds sold 1,110 1,110 — 1,110 — Receivables under resale agreements 10,975 10,975 — 10,975 — Receivables under securities borrowing transactions 2,759 2,759 — 2,759 — Investment securities 4,442 4,453 1,197 1,135 2,121 Loans, net of allowance for credit losses (1) 116,213 117,064 3 247 116,814 Other financial assets (2) 7,455 7,455 — 7,455 — Financial liabilities: Deposits Non-interest-bearing ¥ 30,443 ¥ 30,443 ¥ — ¥ 30,443 ¥ — Interest-bearing 168,846 168,899 — 168,899 — Total deposits 199,289 199,342 — 199,342 — Call money and funds purchased 2,450 2,450 — 2,450 — Payables under repurchase agreements 25,225 25,225 — 25,225 — Payables under securities lending transactions 913 913 — 913 — Due to trust account and other short-term borrowings 9,177 9,177 — 9,177 — Long-term debt 27,790 27,968 — 27,968 — Other financial liabilities 6,781 6,781 — 6,781 — At September 30, 2019 Carrying Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 34,248 ¥ 34,248 ¥ 34,248 ¥ — ¥ — Interest-earning deposits in other banks 39,080 39,080 — 39,080 — Call loans and funds sold 1,048 1,048 — 1,048 — Receivables under resale agreements 16,247 16,247 — 16,247 — Receivables under securities borrowing transactions 2,874 2,874 — 2,874 — Investment securities 4,220 4,258 1,177 1,048 2,033 Loans, net of allowance for credit losses (1) 114,541 115,593 2 254 115,337 Other financial assets (2) 7,976 7,976 — 7,976 — Financial liabilities: Deposits Non-interest-bearing ¥ 30,511 ¥ 30,511 ¥ — ¥ 30,511 ¥ — Interest-bearing 167,672 167,742 — 167,742 — Total deposits 198,183 198,253 — 198,253 — Call money and funds purchased 2,296 2,296 — 2,296 — Payables under repurchase agreements 26,616 26,616 — 26,616 — Payables under securities lending transactions 1,111 1,111 — 1,111 — Due to trust account and other short-term borrowings 10,082 10,082 — 10,082 — Long-term debt 27,430 27,802 — 27,802 — Other financial liabilities 6,912 6,912 — 6,912 — Notes: (1) Includes loans held for sale and collateral dependent loans measured at fair value on a nonrecurring basis. Refer to “Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis” for the details of the level classification. (2) Excludes investments in equity method investees of ¥ 2,487 2,286 The fair values of certain off-balance

Investments in Equity Method In

Investments in Equity Method Investees [Text Block]	6 Months Ended
	Sep. 30, 2019
Equity Method Investments and Joint Ventures [Abstract]
Investments in Equity Method Investees [Text Block]	20. INVESTMENTS IN EQUITY METHOD INVESTEES Summarized Financial Information of the MUFG Group’s Equity Method Investee Summarized operating results of Morgan Stanley, the largest portion of the MUFG Group’s equity method investees, for the six months ended September 30, 2018 and 2019 are as follows: 2018 2019 (in billions) Net revenues ¥ 2,258 ¥ 2,203 Total non-interest 1,601 1,593 Income from continuing operations before income taxes 657 610 Net income applicable to Morgan Stanley 502 475

Subsequent Events _Text Block_

Subsequent Events [Text Block]	6 Months Ended
	Sep. 30, 2019
Subsequent Events [Abstract]
Subsequent Events [Text Block]	21. SUBSEQUENT EVENTS Approval of Dividends On November 13, 2019, the Board of Directors of MUFG approved the payment of semi-annual interim cash dividends of ¥12.5 per share of Common stock, totaling ¥161,991 million, that were payable on December 5, 2019 Acquisition of DVB Bank SE’s Aviation Finance Division On November 18, 2019, MUFG Bank completed its acquisition of DVB’s aviation finance lending portfolio of € related . R ption of On January 27, 2020, MUFG redeemed a total of ¥240 billion of non-cumulative and non-dilutive perpetual preferred securities issued by MUFG Capital Finance 9 Limited, a special purpose company established in the Cayman Islands. The securities were previously accounted for as part of MUFG’s Tier 1 capital at September 30, 2019 under its capital adequacy requirements, subject to certain limitations. Repurchase and Cancellation of own shares From November 14, 2019 to December 23 ¥50 billion. The purpose of the repurchase is to enhance the return of earnings to shareholders, to improve capital efficiency, and to implement flexible capital policies. On January 20, 2020 led

Basis of Semiannual Condensed_2

Basis of Semiannual Condensed Consolidated Financial Statements [Text Block] (Policies)	6 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Description of Business [Policy Text Block]	Description of Business Mitsubishi UFJ Financial Group, Inc. (“MUFG”) is a holding company for MUFG Bank, Ltd. (formerly, The Bank of Tokyo-Mitsubishi UFJ, 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 18 for more information by business segment.
Basis of Financial Statements [Policy Text Block]	Basis of Financial Statements The accompanying semiannual condensed consolidated financial statements are presented in Japanese yen, the currency of the country in which MUFG is incorporated and principally operates. The accompanying condensed consolidated financial statements include the accounts of MUFG, its subsidiaries and certain variable interest entities (“VIE”s) (together, the “MUFG Group”), and reflect all adjustments (consisting of normal recurring adjustments) that, in the opinion of management, are necessary to conform with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements for the fiscal year ended March 31, 2019. Certain information that would be included in annual financial statements but is not required for semiannual reporting purposes under U.S. GAAP has been omitted or condensed.
Use of Estimates [Policy Text Block]	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Accounting Changes [Policy Text Block]	Accounting Changes Disclosure Framework Changes to the Disclosure Requirements for Fair Value Measurement Leases— the FASB issued new guidance which requires that lessees recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use The MUFG Group adopted this guidance on April 1, 2019 and recorded ¥428 b right-of-use b of lease liabilities on the MUFG Group’s consolidated balance sheet. T Premium Amortization on Purchased Callable Debt Securities Targeted Improvements to Accounting for Hedging Activities Improvements to Nonemployee Share-Based Payment Accounting Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes Simplifying the Test for Goodwill Impairment disclosure of the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. This guidance is effective for its annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The MUFG Group early adopted this guidance in connection with an interim quantitative impairment test of goodwill during the six months ended September 30, 2019. Under this guidance, the quantitative impairment test is performed by comparing the carrying amount of a reporting unit with its fair value, and 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. See Note 5 for details of the goodwill impairment.
Recently Issued Accounting Pronouncements [Policy Text Block]	Recently Issued Accounting Pronouncements Measurement of Credit Losses on Financial Instruments available-for-sale 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. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The MUFG Group is continuing to evaluate what effect the guidance above will have on its consolidated financial statements, related disclosures and internal controls. The MUFG Group’s implementation efforts include assessing the impact, developing and refining credit forecasting models and processes. Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract— internal-use internal-use internal-use capitalized-implementation-cost-related

Business Developments _Text B_2

Business Developments [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
MUFG Bank's Acquisition of Shares in Bank Danamon in Indonesia [Member]
Business Developments [Line Items]
Estimated Fair Values of Assets Acquired and Liabilities Assumed [Table Text Block]	(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 weighted average amortization period of 13.2 79,552 customer s with weighted average amortiz a period of 13.1 years 44,140 10.1
Pro Forma Statements of Income (Unaudited) [Table Text Block]	Six months ended 2018 2019 (in millions) Statement of income data: Net interest income ¥ 68,378 ¥ 61,073 Non-interest 13,837 14,387 Net income attributable to Mitsubishi UFJ Financial Group 8,058 7,420
Mitsubishi UFJ Trust and Banking's Acquisition of Colonial First State Global Asset Management [Member]
Business Developments [Line Items]
Pro Forma Statements of Income (Unaudited) [Table Text Block]	Six months ended 2018 2019 (in millions) Statement of income data: Non-interest ¥ 42,222 ¥ 35,294 Net income attributable to Mitsubishi UFJ Financial Group 9,375 7,479

Investment Securities _Text B_2

Investment Securities [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Amortized Cost, Gross Unrealized Gains (Losses) and Fair Value of Investment Securities [Table Text Block]	At March 31, 2019: Amortized Gross Gross Fair value (in millions) Available-for-sale debt securities: Japanese national government and Japanese government agency bonds ¥ 23,748,558 ¥ 330,115 ¥ 977 ¥ 24,077,696 Japanese prefectural and municipal bonds 2,203,978 22,593 5 2,226,566 Foreign government and official institution bonds 2,648,874 18,099 25,554 2,641,419 Corporate bonds 1,117,302 14,251 822 1,130,731 Residential mortgage-backed securities 1,635,220 1,469 21,338 1,615,351 Commercial mortgage-backed securities 132,996 310 2,351 130,955 Asset-backed securities 1,494,629 10,846 2,553 1,502,922 Other debt securities (1) 192,930 2,851 2,918 192,863 Total ¥ 33,174,487 ¥ 400,534 ¥ 56,518 ¥ 33,518,503 Held-to-maturity debt securities: Japanese national government and Japanese government agency bonds ¥ 1,100,701 ¥ 41,619 ¥ — ¥ 1,142,320 Foreign government and official institution bonds 138,731 193 212 138,712 Residential mortgage-backed securities 910,990 1,209 21,202 (2) 890,997 Commercial mortgage-backed securities 160,267 1,903 2,032 (2) 160,138 Asset-backed securities 2,131,212 1,415 11,847 2,120,780 Total ¥ 4,441,901 ¥ 46,339 ¥ 35,293 ¥ 4,452,947 Notes: (1) Other debt securities in the table above mainly include ¥ 112,822 (2) MUFG Americas Holdings Corporation (“MUFG Americas Holdings” or “MUAH”) reclassified residential mortgage-backed securities and commercial mortgage-backed securities from Available-for-sale Held-to-maturity 10,591 4,667 At September 30, 2019: Amortized Gross Gross Fair value (in millions) Available-for-sale Japanese national government and Japanese government agency bonds ¥ 21,345,842 ¥ 360,037 ¥ 11,051 ¥ 21,694,828 Japanese prefectural and municipal bonds 2,537,868 22,897 251 2,560,514 Foreign government and official institution bonds 2,660,491 45,464 3,594 2,702,361 Corporate bonds 1,203,227 14,818 333 1,217,712 Residential mortgage-backed securities 1,655,995 7,473 5,565 1,657,903 Commercial mortgage-backed securities 162,997 5,330 13 168,314 Asset-backed securities 1,483,711 10,036 1,044 1,492,703 Other debt securities (1) 151,507 3,152 1,874 152,785 Total ¥ 31,201,638 ¥ 469,207 ¥ 23,725 ¥ 31,647,120 Held-to-maturity Japanese national government and Japanese government agency bonds ¥ 1,100,638 ¥ 46,492 ¥ — ¥ 1,147,130 Foreign government and official institution bonds 97,068 144 377 96,835 Residential mortgage-backed securities 830,192 10,169 3,386 (2) 836,975 Commercial mortgage-backed securities 140,589 3,459 792 (2) 143,256 Asset-backed securities 2,051,340 1,611 19,638 2,033,313 Total ¥ 4,219,827 ¥ 61,875 ¥ 24,193 ¥ 4,257,509 Notes: (1) Other debt securities in the table above mainly include ¥ 87,626 (2) MUFG Americas Holdings reclassified residential mortgage-backed securities and commercial mortgage-backed securities from Available-for-sale Held-to-maturity 9,500 3,708
Amortized Cost and Fair Value by Contractual Maturity [Table Text Block]	Held-to-maturity Available-for-sale Amortized Fair value Fair value (in millions) Due in one year or less ¥ 53,532 ¥ 53,593 ¥ 13,671,457 Due from one year to five years 916,865 954,658 7,024,193 Due from five years to ten years 874,560 882,891 5,174,748 Due after ten years 2,374,870 2,366,367 5,776,722 Total ¥ 4,219,827 ¥ 4,257,509 ¥ 31,647,120
Investments by Length and Category in Continuous Loss Position [Table Text Block]	Less than 12 months 12 months or more Total At March 31, 2019: Fair value Gross Fair value Gross Fair value Gross Number of (in millions, except number of securities) Available-for-sale Japanese national government and Japanese government agency bonds ¥ 4,149,302 ¥ 976 ¥ 5,599 ¥ 1 ¥ 4,154,901 ¥ 977 39 Japanese prefectural and municipal bonds 12,772 5 — — 12,772 5 4 Foreign government and official institution bonds 397,718 1,125 1,160,671 24,429 1,558,389 25,554 179 Corporate bonds 163,615 776 79,758 46 243,373 822 92 Residential mortgage-backed securities 316,942 1,757 648,353 19,581 965,295 21,338 536 Commercial mortgage-backed securities 42,126 678 57,167 1,673 99,293 2,351 104 Asset-backed securities 164,738 2,553 — — 164,738 2,553 87 Other debt securities 77,660 549 37,027 2,369 114,687 2,918 38 Total ¥ 5,324,873 ¥ 8,419 ¥ 1,988,575 ¥ 48,099 ¥ 7,313,448 ¥ 56,518 1,079 Held-to-maturity Foreign government and official institution bonds ¥ — ¥ — ¥ 55,084 ¥ 212 ¥ 55,084 ¥ 212 10 Residential mortgage-backed securities 74,180 1,199 798,165 20,003 872,345 21,202 457 Commercial mortgage-backed securities 3,154 37 155,011 1,995 158,165 2,032 32 Asset-backed securities 1,423,048 10,196 241,233 1,651 1,664,281 11,847 102 Total ¥ 1,500,382 ¥ 11,432 ¥ 1,249,493 ¥ 23,861 ¥ 2,749,875 ¥ 35,293 601 Less than 12 months 12 months or more Total At September 30, 2019: Fair value Gross Fair value Gross Fair value Gross Number of (in millions, except number of securities) Available-for-sale Japanese national government and Japanese ¥ 3,144,915 ¥ 11,051 ¥ — ¥ — ¥ 3,144,915 ¥ 11,051 29 Japanese prefectural and municipal bonds 140,429 251 — — 140,429 251 47 Foreign government and official institution bonds 271,032 152 488,282 3,442 759,314 3,594 95 Corporate bonds 80,808 332 6,982 1 87,790 333 45 Residential mortgage-backed securities 127,244 631 440,122 4,934 567,366 5,565 423 Commercial mortgage-backed securities 3,411 3 3,523 10 6,934 13 10 Asset-backed securities 118,876 750 28,296 294 147,172 1,044 80 Other debt securities 35,829 23 31,929 1,851 67,758 1,874 22 Total ¥ 3,922,544 ¥ 13,193 ¥ 999,134 ¥ 10,532 ¥ 4,921,678 ¥ 23,725 751 Held-to-maturity Foreign government and official institution bonds ¥ 33,013 ¥ 360 ¥ 26,901 ¥ 17 ¥ 59,914 ¥ 377 12 Residential mortgage-backed securities 103,117 14 625,441 3,372 728,558 3,386 394 Commercial mortgage-backed securities — — 138,479 792 138,479 792 30 Asset-backed securities 1,409,643 16,083 323,507 3,555 1,733,150 19,638 70 Total ¥ 1,545,773 ¥ 16,457 ¥ 1,114,328 ¥ 7,736 ¥ 2,660,101 ¥ 24,193 506
Roll-forward of Credit Loss Component Recognized in Earnings [Table Text Block]	Six months ended 2018 2019 (in millions) Balance at beginning of period ¥ 3,498 ¥ 1,761 Additions: Initial credit impairments 34 661 Subsequent credit impairments 51 — Reductions: Securities sold or matured (233 ) (296 ) Balance at end of period ¥ 3,350 ¥ 2,126
Carrying Value of Nonmarketable Equity Securities [Table Text Block]	March 31, September 30, (in millions) Measurement alternative balance ¥ 563,733 ¥ 700,634
Related Adjustments for Nonmarketable Equity Securities [Table Text Block]	Six months ended 2018 2019 (in millions) Measurement alternative impairment losses (1)(4) ¥ (479 ) ¥ (1,402 ) Measurement alternative downward changes for observable prices (1)(2)(3)(5) ¥ — ¥ (953 ) Measurement alternative upward changes for observable prices (1)(2)(3)(6) ¥ ¥ 162 Notes: (1) Included in Investment securities gains—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 (4) The cumulative impairment losses at March 31, 2019 and September 30, 2019 were ¥ 2,292 3,325 (5) The cumulative downward changes for observable prices at March 31, 2019 and September 30, 2019 were nil (6) The cumulative upward changes for observable prices at March 31, 2019 and September 30, 2019 were ¥ 53,077 28,405
Marketable Equity Securities [Member]
Net Realized Gains (Losses) on Sales of Equity Securities and Net Unrealized Gains (Losses) on Equity Securities Still Held at the Reporting Date [Table Text Block]	Six months ended 2018 2019 (in millions) Net gains (losses) (1) ¥ 411,720 ¥ (36,019 ) Less: Net gains (losses) recognized during the period on equity securities sold during the period 12,470 (9,960 ) Net unrealized gains (losses) recognized during the reporting period still held at the reporting date ¥ 399,250 ¥ (26,059 ) Note: (1) Included in Investment securities gains—net.

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Loans by Domicile and Industry of Borrower Segment Classification [Table Text Block]	March 31, September 30, (in millions) Domestic: Manufacturing ¥ 11,153,996 ¥ 11,135,322 Construction 717,664 700,550 Real estate 11,706,419 11,566,390 Services 2,653,191 2,632,130 Wholesale and retail 7,643,397 7,335,637 Banks and other financial institutions (1) 5,213,020 5,086,664 Communication and information services 1,510,596 1,526,814 Other industries 8,756,483 8,576,044 Consumer 15,802,024 15,542,007 Total domestic 65,156,790 64,101,558 Foreign: Governments and official institutions 841,695 763,483 Banks and other financial institutions (1) 11,641,373 11,068,930 Commercial and industrial 31,951,169 31,438,990 Other 7,597,502 8,209,329 Total foreign 52,031,739 51,480,732 Unearned income, unamortized premiums—net and deferred loan fees—net (304,588 ) (318,880 ) Total (2) ¥ 116,883,941 ¥ 115,263,410 Notes: (1) Loans to so-called “non-bank Non-bank (2) The above table includes loans held for sale of ¥ 291,794 393,781
Nonaccrual Loans by Class [Table Text Block]	March 31, September 30, (in millions) Commercial Domestic ¥ 272,777 ¥ 291,435 Manufacturing 65,896 68,232 Construction 9,813 8,944 Real estate 23,152 20,966 Services 26,188 49,172 Wholesale and retail 94,531 96,017 Banks and other financial institutions 898 860 Communication and information services 11,955 11,449 Other industries 25,406 22,572 Consumer 14,938 13,223 Foreign 111,002 101,241 Residential 68,499 65,819 Card 61,419 62,246 MUAH 46,549 55,635 Krungsri 127,424 130,831 Other — 20,107 Total (1) ¥ 687,670 ¥ 727,314 Note: (1) The above table does not include loans held for sale of ¥ 12,702 11,759 6,284 12,462
Impaired Loans by Class [Table Text Block]	Recorded Loan Balance At March 31, 2019: Requiring Not Requiring (1) Total (2) Unpaid Related (in millions) Commercial Domestic ¥ 560,474 ¥ 157,465 ¥ 717,939 ¥ 759,399 ¥ 227,004 Manufacturing 349,597 28,189 377,786 384,306 92,919 Construction 8,366 5,975 14,341 14,779 6,574 Real estate 20,848 29,961 50,809 55,943 5,704 Services 30,239 13,020 43,259 46,838 20,059 Wholesale and retail 118,253 45,620 163,873 175,714 84,503 Banks and other financial institutions 1,012 21 1,033 1,033 830 Communication and information services 8,794 6,929 15,723 16,587 6,817 Other industries 13,772 17,989 31,761 38,342 6,874 Consumer 9,593 9,761 19,354 25,857 2,724 Foreign 127,521 34,484 162,005 183,133 85,966 Loans acquired with deteriorated credit quality 8,136 — 8,136 14,990 5,450 Residential (4) 97,176 6,495 103,671 120,526 14,357 Card (4) 64,691 330 65,021 72,226 21,829 MUAH (4) 46,552 23,208 69,760 83,300 8,294 Krungsri (4) 57,066 26,193 83,259 90,377 28,254 Total (3) ¥ 961,616 ¥ 248,175 ¥ 1,209,791 ¥ 1,323,951 ¥ 391,154 Recorded Loan Balance At September 30, 2019: Requiring Not Requiring (1) Total (2) Unpaid Related (in millions) Commercial Domestic ¥ 564,458 ¥ 152,097 ¥ 716,555 ¥ 755,988 ¥ 235,107 Manufacturing 346,580 30,272 376,852 383,364 90,210 Construction 7,566 5,498 13,064 13,282 5,790 Real estate 17,133 28,563 45,696 50,856 4,856 Services 49,565 14,824 64,389 68,261 35,299 Wholesale and retail 117,234 39,960 157,194 167,279 83,897 Banks and other financial 937 42 979 979 773 Communication and information services 8,471 6,439 14,910 16,147 6,640 Other industries 8,625 18,644 27,269 33,708 5,243 Consumer 8,347 7,855 16,202 22,112 2,399 Foreign 134,365 36,966 171,331 191,514 92,694 Loans acquired with deteriorated credit quality 7,103 — 7,103 14,367 5,086 Residential (4) 91,551 6,595 98,146 114,610 13,766 Card (4) 64,906 337 65,243 72,511 19,830 MUAH (4) 52,873 30,611 83,484 103,903 9,018 Krungsri (4) 65,819 26,481 92,300 99,254 29,878 Other (4) 16,054 — 16,054 16,622 1,210 Total (3) ¥ 997,129 ¥ 253,087 ¥ 1,250,216 ¥ 1,368,769 ¥ 406,589 Notes: (1) 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, loans’ observable market price, or the fair value of the collateral if the loan is a collateral-dependent loan. (2) Included in impaired loans at March 31, 2019 and September 30, 2019 are accrual TDRs as follows: ¥ 497,013 34,449 31,715 26,183 33,155 26,851 34,213 (3) In addition to impaired loans presented in the above table, there were impaired loans held for sale of ¥12,702 million and ¥14,554 million at March 31, 2019 and September 30, 2019, respectively. (4) Impaired Loans for Residential, Card, MUAH, Krungsri and Other segments in the above table include loans acquired with deteriorated credit quality.
Average Recorded Loan Balance and Recognized Interest Income on Impaired Loans by Class [Table Text Block]	2018 2019 Average Recognized Average Recognized (in millions) Commercial Domestic ¥ 796,431 ¥ 5,846 ¥ 717,249 ¥ 5,151 Manufacturing 392,695 2,787 377,319 2,558 Construction 16,393 162 13,704 116 Real estate 61,434 544 48,253 452 Services 51,767 420 53,824 390 Wholesale and retail 175,516 1,385 160,534 1,248 Banks and other financial institutions 1,474 4 1,007 3 Communication and information services 25,854 246 15,317 159 Other industries 48,080 91 29,515 93 Consumer 23,218 207 17,776 132 Foreign 153,708 1,598 163,110 1,359 Loans acquired with deteriorated credit quality 7,648 194 7,636 113 Residential 108,914 856 100,910 700 Card 66,762 857 65,132 651 MUAH 66,505 955 84,488 1,025 Krungsri 83,239 2,640 88,624 2,828 Other — — 4,066 66 Total ¥ 1,283,207 ¥ 12,946 ¥ 1,231,215 ¥ 11,893
Roll-forward of Accrual TDRs and Other Impaired Loans [Table Text Block]	2018 2019 (in millions) Accrual TDRs: Balance at beginning of period ¥ 670,255 ¥ 617,651 Additions (new accrual TDR status) (1) 40,021 83,196 Transfers to other impaired loans (including nonaccrual TDRs) (9,623 ) (16,694 ) Loans sold (26 ) — Principal payments and other (46,855 ) (54,609 ) Balance at end of period (1) ¥ 653,772 ¥ 629,544 Other impaired loans (including nonaccrual TDRs): Balance at beginning of period ¥ 660,868 ¥ 592,140 Additions (new other impaired loans (including nonaccrual TDRs) status) (1)(2) 97,596 192,692 Charge-off (28,410 ) (20,679 ) Transfers to accrual TDRs (14,548 ) (31,522 ) Loans sold (2,496 ) (14,113 ) Principal payments and other (112,026 ) (97,846 ) Balance at end of period (1) ¥ 600,984 ¥ 620,672 Notes: (1) For the six months ended September 30, 2018, lease receivables of ¥ 538 50 3,642 1,135 918 228 segment, and ¥69 million and nil segment, which were accrual TDRs and nonaccrual TDRs, respectively, are excluded from the additions of accrual TDRs and other impaired loans, respectively, and the related ending balances of such TDRs amounting to ¥ 5,037 3,529 in the Krungsri segment, and ¥68 million and nil are also excluded from the balance of accrual TDRs and other impaired loans, respectively, as of September 30, 2019. (2) Included in the additions of other impaired loans for the six months ended September 30, 2018 and 2019 are nonaccrual TDRs as follows: ¥6,870 million and ¥7,741 million—Card; ¥9,809 million and ¥7,904 million—MUFG Americas Holdings; ¥6,499 million and ¥4,478 million—
TDRs by Class [Table Text Block]	2018 2019 Troubled Debt Troubled Debt Troubled Debt Troubled Debt Pre- Post- Recorded Pre- Post- Recorded (in millions) Commercial (1)(3) Domestic ¥ 20,440 ¥ 20,440 ¥ 1,643 ¥ 20,607 ¥ 20,607 ¥ 6,342 Manufacturing 4,594 4,594 74 9,120 9,120 2,544 Construction 43 43 — 42 42 — Real estate 561 561 — 254 254 — Services 1,505 1,505 436 2,422 2,422 2 Wholesale and retail 12,240 12,240 615 7,779 7,779 3,708 Banks and other financial institutions — — — — — — Communication and information services 156 156 518 240 240 — Other industries 312 312 — 615 615 — Consumer 1,029 1,029 — 135 135 88 Foreign 5,649 5,649 — 29,360 29,360 — Loans acquired with deteriorated credit quality — — — — — — Residential (1)(3) 4,235 4,235 83 3,215 3,215 27 Card (2)(3) 10,382 9,953 1,810 11,900 11,362 1,825 MUAH (2)(3) 11,621 11,621 199 18,766 18,656 4,572 Krungsri (2)(3) 11,889 11,889 3,545 16,724 16,695 3,815 Other (2) — — — 5,117 5,117 — Total ¥ 64,216 ¥ 63,787 ¥ 7,280 ¥ 105,689 ¥ 105,012 ¥ 16,581 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 , (3) For the six months ended September 30, 2018, 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 segment. For the six months ended September 30, 2019, extension of the stated maturity date of loans was the primary concession type in the Commercial and Residential segments, reduction in the stated rate was the primary concession type in the Card segment, and some combination thereof were the primary concession type in the MUFG Americas Holdings and Krungsri segments.
Outstanding Recorded Investment Balances of TDRs by Class [Table Text Block]	March 31, September 30, (in millions) Commercial (1) Domestic ¥ 445,312 ¥ 425,231 Manufacturing 311,890 308,620 Construction 4,591 4,176 Real estate 27,657 24,730 Services 17,135 15,257 Wholesale and retail 69,350 61,182 Banks and other financial institutions 135 120 Communication and information services 3,780 3,468 Other industries 6,357 4,699 Consumer 4,417 2,979 Foreign 51,701 70,140 Residential (1) 34,449 31,715 Card (2) 65,021 65,243 MUAH (2) 48,128 58,063 Krungsri (2) 62,980 72,333 Other (2) — 5,052 Total ¥ 707,591 ¥ 727,777 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. Included in the outstanding recorded investment balances as of March 31, 2019 and September 30, 2019 are nonaccrual TDRs as follows: ¥ 38,838 39,637 14,973 19,936 31,069 33,083 ; and 472
Credit Quality Indicators of Loans by Class [Table Text Block]	At March 31, 2019: Normal Close Likely to become Total (1) (in millions) Commercial Domestic ¥ 49,391,991 ¥ 1,242,075 ¥ 217,745 ¥ 50,851,811 Manufacturing 10,819,594 279,801 47,968 11,147,363 Construction 672,152 37,236 7,857 717,245 Real estate 11,403,613 222,791 22,515 11,648,919 Services 2,436,489 174,784 19,953 2,631,226 Wholesale and retail 7,240,801 329,249 68,736 7,638,786 Banks and other financial institutions 5,199,889 7,654 898 5,208,441 Communication and information services 1,465,652 34,542 10,172 1,510,366 Other industries 8,610,464 119,581 24,947 8,754,992 Consumer 1,543,337 36,437 14,699 1,594,473 Foreign 35,418,267 562,854 112,103 36,093,224 Loans acquired with deteriorated credit quality 11,622 10,833 3,790 26,245 Total ¥ 84,821,880 ¥ 1,815,762 ¥ 333,638 ¥ 86,971,280 Accrual Nonaccrual Total (1) (in millions) Residential ¥ 13,661,794 ¥ 66,290 ¥ 13,728,084 Card ¥ 516,983 ¥ 61,599 ¥ 578,582 Credit Quality Based on Credit Quality Based on Accrual Nonaccrual Pass Special Classified Total (1)(2) (in millions) MUAH ¥ 4,752,021 ¥ 15,540 ¥ 4,699,698 ¥ 51,948 ¥ 88,356 ¥ 9,607,563 Normal Special Substandard or Total (1) (in millions) Krungsri ¥ 5,682,245 ¥ 199,070 ¥ 129,222 ¥ 6,010,537 At September 30, 2019: Normal Close Likely to become Total (1) (in millions) Commercial Domestic ¥ 48,621,489 ¥ 1,121,861 ¥ 211,209 ¥ 49,954,559 Manufacturing 10,772,765 277,025 44,962 11,094,752 Construction 659,171 33,812 7,191 700,174 Real estate 11,308,023 184,868 20,665 11,513,556 Services 2,437,279 155,459 21,235 2,613,973 Wholesale and retail 6,957,169 289,119 72,255 7,318,543 Banks and other financial institutions 5,053,997 7,332 860 5,062,189 Communication and information services 1,484,370 32,607 9,614 1,526,591 Other industries 8,442,000 109,763 21,522 8,573,285 Consumer 1,506,715 31,876 12,905 1,551,496 Foreign 33,355,422 547,441 97,932 34,000,795 Loans acquired with deteriorated credit quality 10,708 9,958 2,826 23,492 Total ¥ 81,987,619 ¥ 1,679,260 ¥ 311,967 ¥ 83,978,846 Accrual Nonaccrual Total (1) (in millions) Residential ¥ 13,451,371 ¥ 63,697 ¥ 13,515,068 Card ¥ 506,130 ¥ 62,398 ¥ 568,528 Credit Quality Based on Credit Quality Based on Accrual Nonaccrual Pass Special Classified Total (1)(2) (in millions) MUAH ¥ 4,738,147 ¥ 14,983 ¥ 4,586,635 ¥ 82,567 ¥ 100,355 ¥ 9,522,687 Normal Special Substandard or Total (1) (in millions) Krungsri ¥ 6,156,695 ¥ 207,183 ¥ 132,678 ¥ 6,496,556 Accrual Nonaccrual Total (1) (in millions) Other ¥ 1,078,936 ¥ 27,309 ¥ 1,106,245 Notes: (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. (2 ) Total loans of MUFG Americas Holdings do not include Federal Deposit Insurance Corporation (“FDIC”) covered loans which are not individually rated totaling ¥689 million and ¥579 million at March 31, 2019 and September 30, 2019, respectively. The MUFG Group will be reimbursed for a substantial portion of any future losses on FDIC covered loans under the terms of the FDIC loss share agreements.
Ages of Past Due Loans by Class [Table Text Block]	At March 31, 2019: 1-3 Greater Total Current Total (1) Recorded (in millions) Commercial Domestic ¥ 11,551 ¥ 30,648 ¥ 42,199 ¥ 50,809,612 ¥ 50,851,811 ¥ 6,900 Manufacturing 1,597 3,036 4,633 11,142,730 11,147,363 — Construction 218 60 278 716,967 717,245 1 Real estate 2,034 4,256 6,290 11,642,629 11,648,919 2,524 Services 778 569 1,347 2,629,879 2,631,226 1 Wholesale and retail 2,791 2,390 5,181 7,633,605 7,638,786 62 Banks and other financial institutions — 21 21 5,208,420 5,208,441 — Communication and information services 411 758 1,169 1,509,197 1,510,366 — Other industries 365 13,037 13,402 8,741,590 8,754,992 — Consumer 3,357 6,521 9,878 1,584,595 1,594,473 4,312 Foreign 10,881 19,993 30,874 36,062,350 36,093,224 236 Residential 62,686 16,615 79,301 13,641,449 13,720,750 6,584 Card 17,203 30,568 47,771 527,421 575,192 — MUAH 28,696 10,827 39,523 9,557,501 9,597,024 2,287 Krungsri 126,313 106,777 233,090 5,771,541 6,004,631 — Total ¥ 257,330 ¥ 215,428 ¥ 472,758 ¥ 116,369,874 ¥ 116,842,632 ¥ 16,007 At September 30, 2019: 1-3 Greater Total Current Total (1) Recorded (in millions) Commercial Domestic ¥ 10,355 ¥ 35,204 ¥ 45,559 ¥ 49,909,000 ¥ 49,954,559 ¥ 5,800 Manufacturing 1,367 1,744 3,111 11,091,641 11,094,752 2 Construction 26 97 123 700,051 700,174 — Real estate 1,311 3,828 5,139 11,508,417 11,513,556 1,736 Services 1,317 1,156 2,473 2,611,500 2,613,973 31 Wholesale and retail 2,730 7,640 10,370 7,308,173 7,318,543 — Banks and other financial institutions — 21 21 5,062,168 5,062,189 — Communication and information services 199 864 1,063 1,525,528 1,526,591 7 Other industries 79 14,205 14,284 8,559,001 8,573,285 — Consumer 3,326 5,649 8,975 1,542,521 1,551,496 4,024 Foreign 16,252 17,417 33,669 33,967,126 34,000,795 21 Residential 56,580 16,082 72,662 13,435,300 13,507,962 6,096 Card 16,599 30,340 46,939 518,427 565,366 — MUAH 36,588 19,706 56,294 9,458,170 9,514,464 1,374 Krungsri 131,259 110,259 241,518 6,249,090 6,490,608 — Other 17,960 18,745 36,705 1,055,502 1,092,207 — Total ¥ 285,593 ¥ 247,753 ¥ 533,346 ¥ 114,592,615 ¥ 115,125,961 ¥ 13,291 Note: (1) Total loans in the above table do not include loans held for sale and loans acquired with deteriorated credit quality 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 [Table Text Block]	Six months ended September 30, 2018: Commercial Residential Card MUAH Krungsri Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 491,098 ¥ 42,546 ¥ 32,119 ¥ 53,765 ¥ 144,596 ¥ 764,124 Provision for (reversal of) credit losses (104,297 ) (1,651 ) 12,400 1,423 21,065 (71,060 ) Charge-offs 22,432 1,648 12,401 7,909 30,213 74,603 Recoveries 6,616 416 500 1,448 10,119 19,099 Net charge-offs 15,816 1,232 11,901 6,461 20,094 55,504 Others (1) 3,368 — — (1,274 ) (5,045 ) (2,951 ) Balance at end of period ¥ 374,353 ¥ 39,663 ¥ 32,618 ¥ 47,453 ¥ 140,522 ¥ 634,609 Six months ended September 30, 2019: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Balance at beginning of period ¥ 389,615 ¥ 38,626 ¥ 32,550 ¥ 52,581 ¥ 144,812 ¥ — ¥ 658,184 Provision for credit losses 28,388 130 14,456 17,950 24,902 16,295 102,121 Charge-offs 29,033 2,093 12,715 16,266 36,240 6,223 102,570 Recoveries 15,612 355 721 2,791 11,115 2,420 33,014 Net charge-offs 13,421 1,738 11,994 13,475 25,125 3,803 69,556 Others (1) (3,410 ) — — (1,613 ) 3,568 1,379 (76 ) Balance at end of period ¥ 401,172 ¥ 37,018 ¥ 35,012 ¥ 55,443 ¥ 148,157 ¥ 13,871 ¥ 690,673 Note: (1 ) Others are principally comprised of gains or losses from foreign exchange translation.
Allowance for Credit Losses and Recorded Investment in Loans by Portfolio Segment [Table Text Block]	At March 31, 2019: Commercial Residential Card MUAH Krungsri Total (in millions) Allowance for credit losses: Individually evaluated for impairment ¥ 312,970 ¥ 14,175 ¥ 21,829 ¥ 8,294 ¥ 28,254 ¥ 385,522 Collectively evaluated for impairment 63,366 23,413 10,708 44,282 116,529 258,298 Loans acquired with deteriorated credit quality (2) 13,279 1,038 13 5 29 14,364 Total ¥ 389,615 ¥ 38,626 ¥ 32,550 ¥ 52,581 ¥ 144,812 ¥ 658,184 Loans: Individually evaluated for impairment ¥ 879,944 ¥ 102,948 ¥ 64,752 ¥ 69,760 ¥ 83,259 ¥ 1,200,663 Collectively evaluated for impairment 86,065,091 13,617,802 510,440 9,527,264 5,921,372 115,641,969 Loans acquired with deteriorated credit quality (2) 26,245 7,334 3,390 11,228 5,906 54,103 Total (1) ¥ 86,971,280 ¥ 13,728,084 ¥ 578,582 ¥ 9,608,252 ¥ 6,010,537 ¥ 116,896,735 At September 30, 2019: Commercial Residential Card MUAH Krungsri Other Total (in millions) Allowance for credit losses: Individually evaluated for impairment ¥ 327,801 ¥ 13,597 ¥ 19,830 ¥ 9,018 ¥ 29,878 ¥ 462 ¥ 400,586 Collectively evaluated for impairment 61,397 22,159 15,175 46,420 118,251 12,660 276,062 Loans acquired with deteriorated credit quality (2) 11,974 1,262 7 5 28 749 14,025 Total ¥ 401,172 ¥ 37,018 ¥ 35,012 ¥ 55,443 ¥ 148,157 ¥ 13,871 ¥ 690,673 Loans: Individually evaluated for impairment ¥ 887,886 ¥ 97,534 ¥ 65,004 ¥ 83,484 ¥ 92,300 ¥ 8,901 ¥ 1,235,109 Collectively evaluated for impairment 83,067,468 13,410,428 500,362 9,430,980 6,398,308 1,083,306 113,890,852 Loans acquired with deteriorated credit quality (2) 23,492 7,106 3,162 8,802 5,948 14,038 62,548 Total (1) ¥ 83,978,846 ¥ 13,515,068 ¥ 568,528 ¥ 9,523,266 ¥ 6,496,556 ¥ 1,106,245 ¥ 115,188,509 Notes: (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. (2 ) Loans acquired with deteriorated credit quality in the above table include impaired loans which are individually evaluated for impairment.

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Movement in Carrying Amount of Goodwill [Table Text Block]	Six months ended 2018 2019 (in millions) Balance at beginning of period Goodwill (1) ¥ 633,452 ¥ 626,009 Accumulated impairment losses (1) (192,118 ) (192,118 ) 441,334 433,891 Goodwill acquired during the six months (2) — 446,643 Impairment loss — (241,356 ) Foreign currency translation adjustments and other (10,179 ) (22,558 ) Balance at end of period Goodwill 623,273 1,050,094 Accumulated impairment losses (192,118 ) (433,474 ) ¥ 431,155 ¥ 616,620 Note s (1 ) Goodwill originally recognized was ¥1,900,019 million, which has been fully impaired before April 1, 201 8 (2 ) See Note 2 for the goodwill acquired in connection with acquisitions.
Carrying Amount of Other Intangible Assets by Major Class [Table Text Block]	March 31, September 30, (in millions) Intangible assets subject to amortization: Software ¥ 673,638 ¥ 715,487 Customer relationships 141,410 306,089 Core deposit intangibles 38,153 78,129 Trade names 42,921 57,556 Other 5,381 12,034 Total 901,503 1,169,295 Intangible assets not subject to amortization: Other (1) 25,693 32,106 Total ¥ 927,196 ¥ 1,201,401 Note: (1 ) Intangible assets not subject to amortization includes mortgage servicing rights accounted for at fair value of ¥ 17,431 23,480

Lease Transactions _Text Bloc_2

Lease Transactions [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Profit or Loss of Lease Transactions as a Lessee [Table Text Block]	September 30, 2019 (in millions) Finance lease cost: Amortization of right-of-use assets ¥ 2,420 Interest on lease liabilities 150 Operating lease cost 46,783
Information of Lease Transactions as a Lessee [Table Text Block]	September 30, 2019 (in millions) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases ¥ 218 Operating cash flows from operating leases 54,517 Financing cash flows from finance leases 3,430 Right-of-use assets obtained in exchange for new finance lease liabilities 9,981 Right-of-use assets obtained in exchange for new operating lease liabilities 19,490 Weighted-average remaining lease term: Finance leases 4.7 years Operating leases 9.3 years Weighted-average discount rate: Finance leases 1.16 % Operating leases 1.29 %
Maturities of Lease Liabilities as a Leasee [Table Text Block]	Finance Operating leases (in millions) 2020 (excluding these six months ended September 30, 2019) ¥ 4,084 ¥ 49,340 2021 7,350 93,869 2022 6,074 72,109 2023 4,034 52,910 2024 2,528 37,623 2025 and thereafter 3,285 210,928 Total undiscounted cash flows 27,355 516,779 Difference between undiscounted and discounted cash flows (1,258 ) (34,305 ) Amount on balance sheet ¥ 26,097 ¥ 482,474
Profit or Loss of Lease Transactions as a Lessor [Table Text Block]	September 30, 2019 (in millions) Financing leases: Finance income on net investment ¥ 59,058 Operating leases: Lease income 1,917 Total ¥ 60,975
Component of Direct Financing Lease Transactions [Table Text Block]	September 30, (in millions) Lease receivables ( un ¥ 2,057,016 Adjustments: Discounted unguaranteed residual value 25,504 Initial direct cost on direct financing leases 26,756 Deferred selling profit (331,036 ) Net investment in direct financing leases ¥ 1,778,240
Maturity of the Lease Payment Receivables of Direct Financing Lease Transactions [Table Text Block]	Lease receivables (in millions) 2020 (excluding these six months ended September 30, 2019) ¥ 328,477 2021 490,312 2022 392,828 2023 307,340 2024 222,265 2025 and thereafter 315,794 Total undiscounted cash flows 2,057,016 Difference between undiscounted cash flows and the lease receivables recognized on balance sheet (278,776 ) Amount on balance sheet ¥ 1,778,240

Pledged Assets and Collateral_2

Pledged Assets and Collateral [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Assets Mortgaged Pledged or Otherwise Subject to Lien [Table Text Block]	September 30, (in millions) Trading account securities ¥ 7,397,338 Investment securities 5,264,459 Loans 13,075,475 Other 39,010 Total ¥ 25,776,282
Pledged Assets Classified by Type of Liabilities [Table Text Block]	September 30, (in millions) Deposits ¥ 260,151 Call money and funds purchased 6,314 Payables under repurchase agreements and securities lending transactions 12,014,688 Other short-term borrowings and long-term debt 13,478,750 Other 16,379 Total ¥ 25,776,282

Severance Indemnities and Pen_2

Severance Indemnities and Pension Plans [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost of Pension Benefits, SIPs and Other Benefits [Table Text Block]	Six months ended September 30, Domestic subsidiaries Foreign offices and subsidiaries 2018 2019 2018 2019 Pension Pension Pension Other Pension Other (in millions) Service cost—benefits earned during the period ¥ 24,205 ¥ 24,585 ¥ 5,975 ¥ 271 ¥ 6,550 ¥ 175 Interest cost on projected benefit obligation 6,764 5,545 7,407 515 8,667 575 Expected return on plan assets (37,170 ) (37,585 ) (16,413 ) (1,139 ) (15,847 ) (949 ) Amortization of net actuarial loss 612 2,602 3,492 349 4,915 556 Amortization of prior service cost (604 ) (602 ) (1,496 ) (995 ) (1,332 ) (948 ) Loss ) (3,901 ) (2,347 ) — — 185 — Net periodic benefit cost (income) ¥ (10,094 ) ¥ (7,802 ) ¥ (1,035 ) ¥ (999 ) ¥ 3,138 ¥ (591 )
Contributed to Plan Assets and Expected to Contribute for Remainder of Fiscal Year [Table Text Block]	Domestic Foreign offices Pension Pension Other (in billions) For the six months ended September 30, 2019 ¥ 21.5 ¥ 0.8 ¥ 0.2 For the remainder of the fiscal year ending March 31, 2020 ¥ 7.7 ¥ 0.4 ¥ 0.2

Offsetting of Derivatives, Re_2

Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Summary of Offsetting of Derivatives, Repurchase Agreements, and Securities Lending Transactions [Table Text Block]	Gross amounts of Gross amounts Net amounts Gross amounts not offset At March 31, 2019 consolidated Financial Cash collateral Net amounts (in billions) Financial assets: Derivative assets ¥ 13,205 ¥ — ¥ 13,205 ¥ (10,752 ) ¥ (590 ) ¥ 1,863 Receivables under resale 13,885 (2,910 ) 10,975 (9,793 ) (20 ) 1,162 Receivables under securities 2,759 — 2,759 (2,693 ) — 66 Total ¥ 29,849 ¥ (2,910 ) ¥ 26,939 ¥ (23,238 ) ¥ (610 ) ¥ 3,091 Financial liabilities: Derivative liabilities ¥ 12,710 ¥ — ¥ 12,710 ¥ (10,671 ) ¥ (933 ) ¥ 1,106 Payables under repurchase agreements 28,125 (2,900 ) 25,225 (24,930 ) (15 ) 280 Payables under securities lending transactions 913 — 913 (880 ) — 33 Obligations to return securities received as collateral 3,087 — 3,087 (1,244 ) — 1,843 Total ¥ 44,835 ¥ (2,900 ) ¥ 41,935 ¥ (37,725 ) ¥ (948 ) ¥ 3,262 Gross amounts of recognized Gross amounts consolidated Net amounts presented in the condensed Gross amounts not offset in the condensed consolidated balance sheet At September 30, 2019 consolidated Financial Cash collateral Net amounts (in billions) Financial assets: Derivative assets ¥ 14,975 ¥ — ¥ 14,975 ¥ (11,956 ) ¥ (726 ) ¥ 2,293 Receivables under resale 18,104 (1,857 ) 16,247 (15,349 ) (23 ) 875 Receivables under securities 2,874 — 2,874 (2,802 ) — 72 Total ¥ 35,953 ¥ (1,857 ) ¥ 34,096 ¥ (30,107 ) ¥ (749 ) ¥ 3,240 Financial liabilities: Derivative liabilities ¥ 14,182 ¥ — ¥ 14,182 ¥ (11,999 ) ¥ (1,003 ) ¥ 1,180 Payables under repurchase 28,468 (1,852 ) 26,616 (26,286 ) (13 ) 317 Payables under securities lending transactions 1,111 — 1,111 (1,075 ) — 36 Obligations to return securities 3,391 — 3,391 (1,196 ) — 2,195 Total ¥ 47,152 ¥ (1,852 ) ¥ 45,300 ¥ (40,556 ) ¥ (1,016 ) ¥ 3,728

Repurchase Agreements, and Se_2

Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Gross Obligations by Remaining Contractual Maturity and Class of Collateral Pledged [Table Text Block]	March 31, 2019 Remaining Contractual Maturity Overnight 30 days 31-90 Over Total (in billions) Payables under repurchase agreements ¥ 3,892 ¥ 18,586 ¥ 2,824 ¥ 2,823 ¥ 28,125 Payables under securities lending transactions 913 — — — 913 Obligations to return securities received as collateral 2,572 396 117 2 3,087 Total ¥ 7,377 ¥ 18,982 ¥ 2,941 ¥ 2,825 ¥ 32,125 September 30, 2019 Remaining Contractual Maturity Overnight 30 days 31-90 Over Total (in billions) Payables under repurchase agreements ¥ 8,368 ¥ 12,467 ¥ 4,557 ¥ 3,076 ¥ 28,468 Payables under securities lending transactions 1,061 50 — — 1,111 Obligations to return securities received as collateral 3,046 210 134 1 3,391 Total ¥ 12,475 ¥ 12,727 ¥ 4,691 ¥ 3,077 ¥ 32,970
Secured Borrowing by the Class of Collateral Pledged [Table Text Block]	March 31, 2019 Payables under Payables under Obligations Total (in billions) Japanese national government and Japanese government agency bonds ¥ 8,306 ¥ 21 ¥ 856 ¥ 9,183 Foreign government and official institution bonds 14,291 — 1,286 15,577 Corporate bonds 705 — 172 877 Residential mortgage-backed securities 4,369 — — 4,369 Other debt securities 238 — — 238 Marketable equity securities 200 892 772 1,864 Others 16 — 1 17 Total ¥ 28,125 ¥ 913 ¥ 3,087 ¥ 32,125 September 30, 2019 Payables under Payables under Obligations Total (in billions) Japanese national government and Japanese government agency bonds ¥ 9,662 ¥ 87 ¥ 1,208 ¥ 10,957 Foreign government and official institution bonds 15,142 57 1,018 16,217 Corporate bonds 663 — 122 785 Residential mortgage-backed securities 2,323 — — 2,323 Other debt securities 275 — — 275 Marketable equity securities 276 965 1,043 2,284 Others 127 2 — 129 Total ¥ 28,468 ¥ 1,111 ¥ 3,391 ¥ 32,970

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Changes in Accumulated OCI, Net of Tax and Net of Noncontrolling Interests [Table Text Block]	Six months ended 2018 2019 (in millions) Accumulated other comprehensive i Net unrealized gains (losses) on investment securities: Balance at beginning of period ¥ 2,270,346 ¥ (369,369 ) Net change during the period (91,819 ) 82,908 Effect of adopting new guidance on recognition and measurement of financial assets and financial liabilities (2,700,331 ) — Balance at end of period ¥ (521,804 ) ¥ (286,461 ) Net debt valuation adjustments: Balance at beginning of period ¥ (16,488 ) ¥ (8,670 ) Net change during the period (2,226 ) 850 Effect of adopting new guidance on recognition and measurement of financial assets and financial liabilities (1,911 ) — Balance at end of period ¥ (20,625 ) ¥ (7,820 ) Net unrealized losses on derivatives qualifying for cash flow hedges: Balance at beginning of period ¥ (19,250 ) ¥ (24,140 ) Net change during the period (6,843 ) 9,167 Balance at end of period ¥ (26,093 ) ¥ (14,973 ) Defined benefit plans: Balance at beginning of period ¥ (119,593 ) ¥ (208,273 ) Net change during the period 16,459 (7,750 ) Balance at end of period ¥ (103,134 ) ¥ (216,023 ) Foreign currency translation adjustments: Balance at beginning of period ¥ 362,300 ¥ 326,183 Net change during the period 37,116 (205,047 ) Balance at end of period ¥ 399,416 ¥ 121,136 Balance at end of period ¥ (272,240 ) ¥ (404,141 )
Before Tax and Net of Tax Changes in Each Component of Accumulated OCI [Table Text Block]	Six months ended September 30, 2018 2019 Before tax Tax (expense) Net of tax Before tax Tax (expense) Net of tax (in millions) Net unrealized gains (losses) on investment securities: Net unrealized gains (losses) on investment securities ¥ (94,429 ) ¥ 29,952 ¥ (64,477 ) ¥ 157,642 ¥ (34,202 ) ¥ 123,440 Reclassification adjustment for gains included in net income before attribution of noncontrolling interests (14,494 ) 4,626 (9,868 ) (45,354 ) 13,370 (31,984 ) Net change (108,923 ) 34,578 (74,345 ) 112,288 (20,832 ) 91,456 Net unrealized gains on investment securities attributable to noncontrolling interests 17,474 8,548 Net unrealized gains (losses) on investment securities attributable to Mitsubishi UFJ Financial Group (91,819 ) 82,908 Net debt valuation adjustments: Net debt valuation adjustments (4,038 ) 1,236 (2,802 ) 1,067 (327 ) 740 Reclassification adjustment for losses included in net income before attribution of noncontrolling interests 829 (253 ) 576 159 (49 ) 110 Net change (3,209 ) 983 (2,226 ) 1,226 (376 ) 850 Net debt valuation adjustments attributable to noncontrolling interests — — Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group (2,226 ) 850 Net unrealized gains (losses) on derivatives qualifying for cash flow hedges: Net unrealized gains (losses) on derivatives qualifying for cash flow hedges (10,138 ) 2,774 (7,364 ) 6,748 (1,934 ) 4,814 Reclassification adjustment for losses included in net income before attribution of noncontrolling interests 735 (214 ) 521 5,843 (1,527 ) 4,316 Net change (9,403 ) 2,560 (6,843 ) 12,591 (3,461 ) 9,130 Net unrealized losses on derivatives qualifying for cash flow hedges attributable to noncontrolling interests — (37 ) Net unrealized gains (losses) on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group (6,843 ) 9,167 Defined benefit plans: Defined benefit plans 26,282 (8,022 ) 18,260 (13,959 ) 3,917 (10,042 ) Reclassification adjustment for gains ( losses (2,643 ) 878 (1,765 ) 2,169 (500 ) 1,669 Net change 23,639 (7,144 ) 16,495 (11,790 ) 3,417 (8,373 ) Defined benefit plans attributable to noncontrolling interests 36 (623 ) Defined benefit plans attributable to Mitsubishi UFJ Financial Group 16,459 (7,750 ) Foreign currency translation adjustments: Foreign currency translation adjustments 63,376 (35,893 ) 27,483 (224,257 ) 24,752 (199,505 ) Reclassification adjustment for gains included in net income before attribution of noncontrolling interests (2,685 ) 851 (1,834 ) (2,208 ) 1,095 (1,113 ) Net change 60,691 (35,042 ) 25,649 (226,465 ) 25,847 (200,618 ) Foreign currency translation adjustments attributable to noncontrolling interests (11,467 ) 4,429 Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group 37,116 (205,047 ) Other comprehensive loss attributable to Mitsubishi UFJ Financial Group ¥ (47,313 ) ¥ (119,872 )
Reclassification of Significant Items out of Accumulated OCI [Table Text Block]	Six months ended 2018 2019 Details of Accumulated OCI components Amount reclassified out of Line items in the consolidated statements of income (in millions) Net unrealized losses (gains) on investment securities Net gains on sales and redemptions of Available-for-sale ¥ (14,476 ) ¥ (45,550 ) Investment securities gains—net Other (18 ) 196 (14,494 ) (45,354 ) Total before tax 4,626 13,370 Income tax expense ¥ (9,868 ) ¥ (31,984 ) Net of tax Net debt valuation adjustments ¥ 829 ¥ 159 Equity in earnings of equity method investees—net 829 159 Total before tax (253 ) (49 ) Income tax expense ¥ 576 ¥ 110 Net of tax Net unrealized losses (gains) on derivatives qualifying for cash flow hedges Interest rate contracts ¥ 816 ¥ 4,408 Interest income on Loans, including fees Foreign exchange contracts ¥ — ¥ 1,433 Interest expense on Long-term debt or Foreign exchange losses—net Other (81 ) 2 735 5,843 Total before tax (214 ) (1,527 ) Income tax expense ¥ 521 ¥ 4,316 Net of tax Defined benefit plans Net actuarial loss (1) ¥ 4,452 ¥ 8,073 Other non-interest Prior service cost (1) (3,095 ) (2,882 ) Other non-interest Loss (gain) on settlements and curtailment, and other (1) (4,000 ) (3,022 ) Other non-interest (2,643 ) 2,169 Total before tax 878 (500 ) Income tax expense ¥ (1,765 ) ¥ 1,669 Net of tax Foreign currency translation adjustments ¥ (2,686 ) ¥ (4,976 ) Other non-interest 1 2,768 Other non-interest (2,685 ) (2,208 ) Total before tax 851 1,095 Income tax expense ¥ (1,834 ) ¥ (1,113 ) Net of tax Total reclassifications for the period ¥ (18,258 ) ¥ (39,391 ) Total before tax 5,888 12,389 Income tax expense ¥ (12,370 ) ¥ (27,002 ) Net of tax Note: (1) These Accumulated OCI components are components of net periodic benefit cost. See Note 8 for more information.

Noncontrolling Interests _Tex_2

Noncontrolling Interests [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Noncontrolling Interest [Abstract]
Effect on MUFG's Shareholders' Equity from Changes in Ownership of Subsidiaries [Table Text Block]	Six months ended 2018 2019 (in millions) Net income attributable to Mitsubishi UFJ Financial Group ¥ 553,251 ¥ 616,542 Transactions between Mitsubishi UFJ Financial Group and the noncontrolling interest shareholders 36 6,094 Net transfers from the noncontrolling interest shareholders 36 6,094 Change from net income attributable to Mitsubishi UFJ Financial Group and transactions between Mitsubishi UFJ Financial Group and the noncontrolling interest shareholders ¥ 553,287 ¥ 622,636

Derivative Financial Instrume_2

Derivative Financial Instruments [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Notional Amounts of Derivative Contracts [Table Text Block]	Notional amounts (1) March 31, September 30, (in trillions) Interest rate contracts ¥ 1,409.6 ¥ 1,457.5 Foreign exchange contracts 230.5 237.6 Equity contracts 6.4 7.2 Commodity contracts 0.2 0.2 Credit derivatives 7.2 7.8 Others 3.0 3.0 Total ¥ 1,656.9 ¥ 1,713.3 Note: (1) Includes both written and purchased positions.
Fair Value Information on Derivative Instruments Recorded on Condensed Consolidated Balance Sheets [Table Text Block]	Fair value of derivative instruments March 31, 2019 (1)(5) September 30, 2019 (1)(5) Not designated (2) Designated (3) Total (4) Not designated (2) Designated (3) Total (4) (in billions) Derivative assets: Interest rate contracts ¥ 10,108 ¥ 1 ¥ 10,109 ¥ 11,734 ¥ — ¥ 11,734 Foreign exchange contracts 2,795 — 2,795 2,967 1 2,968 Equity contracts 188 — 188 149 — 149 Commodity contracts 27 — 27 28 — 28 Credit derivatives 84 — 84 95 — 95 Others 2 — 2 1 — 1 Total derivative assets ¥ 13,204 ¥ 1 ¥ 13,205 ¥ 14,974 ¥ 1 ¥ 14,975 Derivative liabilities: Interest rate contracts ¥ 9,896 ¥ — ¥ 9,896 ¥ 11,217 ¥ — ¥ 11,217 Foreign exchange contracts 2,671 — 2,671 2,773 3 2,776 Equity contracts 183 — 183 189 — 189 Commodity contracts 27 — 27 26 — 26 Credit derivatives 69 — 69 84 — 84 Others (6) (136 ) — (136 ) (110 ) — (110 ) Total derivative liabilities ¥ 12,710 ¥ — ¥ 12,710 ¥ 14,179 ¥ 3 ¥ 14,182 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/liabilities except for (6). (3) The MUFG Group adopts hedging strategies and applies hedge accounting to certain derivative transactions entered into by certain subsidiaries (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 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. (6) Others mainly include bifurcated embedded derivatives carried at fair value, which are presented in Deposits and Long-term debt.
Gains and Losses for Trading and Risk Management Derivatives (Not Designated as Hedging Instruments) [Table Text Block]	Trading and risk management derivatives gains and losses Foreign exchange Trading account Total (in billions) Six months ended September 30, 2018: Interest rate contracts ¥ — ¥ (53 ) ¥ (53 ) Foreign exchange contracts (287 ) — (287 ) Equity contracts — (115 ) (115 ) Credit derivatives — (5 ) (5 ) Others (5 ) (55 ) (60 ) Total ¥ (292 ) ¥ (228 ) ¥ (520 ) Six months ended September 30, 2019: Interest rate contracts ¥ — ¥ 122 ¥ 122 Foreign exchange contracts (185 ) — (185 ) Equity contracts — (58 ) (58 ) Commodity contracts — (15 ) (15 ) Credit derivatives — (23 ) (23 ) Others — (48 ) (48 ) Total ¥ (185 ) ¥ (22 ) ¥ (207 )
Gains and Losses for Derivatives Designated as Cash Flow Hedges [Table Text Block]	Six months ended September 30, 2018 2019 (in billions) Gains (losses) recognized in Accumulated OCI on derivative instruments Interest rate contracts ¥ (11 ) ¥ 8 Foreign exchange contracts ¥ — ¥ (2 ) Total ¥ (11 ) ¥ 6 Losses reclassified from Accumulated OCI into income (1) Interest rate contracts ¥ (1 ) ¥ (5 ) Foreign exchange contracts ¥ — ¥ (1 ) Total ¥ (1 ) ¥ (6 ) Note: (1) Mainly included in Interest income and Interest expense.
Protection Sold Through Credit Default Swaps [Table Text Block]	Protection sold Maximum potential/Notional amount Fair value At March 31 , 2019 : 1 year 1-5 Over Total (Asset)/ (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 378,527 ¥ 1,603,962 ¥ 145,689 ¥ 2,128,178 ¥ (30,303 ) Non-investment 112,901 238,330 5,672 356,903 (127 ) Not rated — 5,097 — 5,097 (47 ) Total 491,428 1,847,389 151,361 2,490,178 (30,477 ) Index and basket credit default swaps held by BK: Investment grade (2) — 120,854 — 120,854 (82 ) Non-investment — 101,001 — 101,001 (2,010 ) Total — 221,855 — 221,855 (2,092 ) Index and basket credit default swaps held by SCHD: Investment grade (2) 13,000 194,618 8,000 215,618 (3,853 ) Non-investment — — — — — Not rated 8,863 206,832 3,444 219,139 (3,043 ) Total 21,863 401,450 11,444 434,757 (6,896 ) Total index and basket credit default swaps sold 21,863 623,305 11,444 656,612 (8,988 ) Total credit default swaps sold 513,291 2,470,694 162,805 3,146,790 (39,465 ) Other credit derivatives sold (3) Investment grade 77,693 — — 77,693 (620 ) Total credit derivatives ¥ 590,984 ¥ 2,470,694 ¥ 162,805 ¥ 3,224,483 ¥ (40,085 ) Protection sold Maximum potential/Notional amount by Fair value At September 30, 2019: 1 year 1-5 Over Total (Asset)/ (1) (in millions) Single name credit default swaps: Investment grade (2) ¥ 309,164 ¥ 2,106,326 ¥ 204,179 ¥ 2,619,669 ¥ (53,843 ) Non-investment 90,915 233,751 6,563 331,229 (1,168 ) Not rated — 10,848 — 10,848 2 Total 400,079 2,350,925 210,742 2,961,746 (55,009 ) Index and basket credit default swaps held by BK: Investment grade (2) — 74,275 — 74,275 (2 ) Non-investment grade — 98,207 — 98,207 (2,024 ) Not rated — 1,079 — 1,079 — Total — 173,561 — 173,561 (2,026 ) Index and basket credit default swaps held by SCHD: Investment grade (2) ¥ — ¥ 24,301 ¥ 831 ¥ 25,132 ¥ (603 ) Non-investment 14,000 159,000 9,000 182,000 (3,335 ) Not rated 16,491 247,850 3,920 268,261 (5,714 ) Total 30,491 431,151 13,751 475,393 (9,652 ) Total index and basket credit default swaps sold 30,491 604,712 13,751 648,954 (11,678 ) Total credit default swaps sold 430,570 2,955,637 224,493 3,610,700 (66,687 ) Other credit derivatives sold (3) Investment grade 75,544 — — 75,544 (2,596 ) Total credit derivatives ¥ 506,114 ¥ 2,955,637 ¥ 224,493 ¥ 3,686,244 ¥ (69,283 ) 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- (3) Other credit derivatives primarily consist of total return swaps.

Obligations under Guarantees _2

Obligations under Guarantees and Other Off-balance Sheet Instruments [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Text Block [Abstract]
Contractual or Notional Amounts of Guarantees [Table Text Block]	March 31, September 30, (in billions) Standby letters of credit and financial guarantees ¥ 3,901 ¥ 3,986 Performance guarantees 3,256 3,172 Derivative instruments (1)(2) 58,025 60,002 Liabilities of trust accounts 11,520 12,394 Others 53 76 Total ¥ 76,755 ¥ 79,630 Notes: (1) Credit derivatives sold by the MUFG Group are excluded from this presentation. (2) Derivative instruments that are deemed to be included within the definition of guarantees as prescribed in the guidance on guarantees include certain written options and credit default swaps.
Maximum Potential Amount of Future Payments Classified Based upon Internal Credit Ratings [Table Text Block]	At March 31, 2019: Maximum Amount by borrower grade Normal Close (1) Likely to (1) Not rated (in billions) Standby letters of credit and financial guarantees ¥ 3,901 ¥ 3,779 ¥ 98 ¥ 21 ¥ 3 Performance guarantees 3,256 3,070 79 78 29 Total ¥ 7,157 ¥ 6,849 ¥ 177 ¥ 99 ¥ 32 At September 30, 2019: Maximum Amount by borrower grade Normal Close (1) Likely to (1) Not rated (in billions) Standby letters of credit and financial guarantees ¥ 3,986 ¥ 3,855 ¥ 91 ¥ 37 ¥ 3 Performance guarantees 3,172 2,976 127 45 24 Total ¥ 7,158 ¥ 6,831 ¥ 218 ¥ 82 ¥ 27 Note: (1 ) See Notes of the tables regarding “the maximum potential amount of future payments classified based upon internal credit ratings “in Note 25 to the consolidated financial statements for the fiscal year ended March 31, 2019.
Contractual Amounts with Regard to Other Off-balance Sheet Instruments [Table Text Block]	March 31, September 30, (in billions) Commitments to extend credit ¥ 77,273 ¥ 78,181 Commercial letters of credit 1,057 826 Commitments to make investments 240 240 Other 5 6

Variable Interest Entities _T_2

Variable Interest Entities [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Consolidated VIEs [Member]
Assets and Liabilities of Variable Interest Entities [Table Text Block]	Consolidated VIEs Consolidated assets At March 31, 2019: Total Cash and Interest-earning Trading Investment Loans All other (in millions) Asset-backed conduits ¥ 6,698,146 ¥ 92,310 ¥ 26,101 ¥ 3,005 ¥ 1,424,444 ¥ 5,124,462 ¥ 27,824 Investment funds 680,922 — 14,113 477,239 18,118 — 171,452 Special purpose entities created for structured financing 203,458 — 2,214 — — 127,243 74,001 Repackaged instruments 279,327 506 — 53,346 137,509 86,753 1,213 Securitization of the MUFG Group’s assets 10,208,496 — — — — 10,183,624 24,872 Trust arrangements 7,888,210 — 8,953 202 311,412 7,565,862 1,781 Others 34,303 362 1,635 — 42 9,699 22,565 Total consolidated assets before elimination 25,992,862 93,178 53,016 533,792 1,891,525 23,097,643 323,708 The amounts eliminated in consolidation (7,772,776 ) (93,171 ) (29,361 ) (5,102 ) (63,331 ) (7,552,315 ) (29,496 ) Total consolidated assets ¥ 18,220,086 ¥ 7 ¥ 23,655 ¥ 528,690 ¥ 1,828,194 ¥ 15,545,328 ¥ 294,212 Consolidated liabilities Total Deposits Other Long-term All other (in millions) Asset-backed conduits ¥ 6,691,362 ¥ — ¥ 4,678,588 ¥ 1,552,572 ¥ 460,202 Investment funds 6,852 — — 5,158 1,694 Special purpose entities created for structured financing 114,469 — 609 111,523 2,337 Repackaged instruments 277,179 — 48,014 174,215 54,950 Securitization of the MUFG Group’s assets 10,167,632 — — 10,162,231 5,401 Trust arrangements 7,881,332 7,616,575 — — 264,757 Others 32,584 — 8,611 1,474 22,499 Total consolidated liabilities before elimination 25,171,410 7,616,575 4,735,822 12,007,173 811,840 The amounts eliminated in consolidation (14,676,389 ) (50,396 ) (2,996,041 ) (11,517,019 ) (112,933 ) The amount of liabilities with recourse to the general credit of the MUFG Group (9,922,307 ) (7,566,179 ) (1,719,246 ) (121 ) (636,761 ) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 572,714 ¥ — ¥ 20,535 ¥ 490,033 ¥ 62,146 Consolidated VIEs Consolidated assets At September 30, 2019: Total Cash and Interest-earning Trading Investment Loans All other (in millions) Asset-backed conduits ¥ 6,258,951 ¥ 42,849 ¥ 29,798 ¥ 9,640 ¥ 1,280,174 ¥ 4,869,809 ¥ 26,681 Investment funds 868,307 — 15,064 586,508 24,635 — 242,100 Special purpose entities created for structured financing 212,667 — 2,246 — — 115,375 95,046 Repackaged instruments 286,959 504 3,000 46,652 134,281 99,787 2,735 Securitization of the MUFG Group’s assets 11,373,985 — — — — 11,351,035 22,950 Trust arrangements 7,546,940 — 1,566 154,754 499,070 6,890,574 976 Others 30,335 353 1,755 — 50 8,120 20,057 Total consolidated assets before elimination 26,578,144 43,706 53,429 797,554 1,938,210 23,334,700 410,545 The amounts eliminated in consolidation (7,142,350 ) (43,671 ) (26,857 ) (7,904 ) (163,035 ) (6,877,846 ) (23,037 ) Total consolidated assets ¥ 19,435,794 ¥ 35 ¥ 26,572 ¥ 789,650 ¥ 1,775,175 ¥ 16,456,854 ¥ 387,508 Consolidated liabilities Total Deposits Other Long-term All other (in millions) Asset-backed conduits ¥ 6,247,794 ¥ — ¥ 4,314,641 ¥ 1,490,152 ¥ 443,001 Investment funds 23,330 — — 5,392 17,938 Special purpose entities created for structured financing 117,285 — 308 114,935 2,042 Repackaged instruments 285,596 — 81,736 168,002 35,858 Securitization of the MUFG Group’s assets 11,344,643 — — 10,522,062 822,581 Trust arrangements 7,539,764 7,044,811 — — 494,953 Others 28,576 — 7,142 1,386 20,048 Total consolidated liabilities before elimination 25,586,988 7,044,811 4,403,827 12,301,929 1,836,421 The amounts eliminated in consolidation (15,332,750 ) (5,226 ) (2,487,360 ) (11,829,397 ) (1,010,767 ) The amount of liabilities with recourse to the general credit of the MUFG Group (9,662,129 ) (7,039,585 ) (1,881,746 ) — (740,798 ) Liabilities of consolidated VIEs for which creditors or beneficial interest holders do not have recourse to the general credit of the MUFG Group ¥ 592,109 ¥ — ¥ 34,721 ¥ 472,532 ¥ 84,856
Non-consolidated VIEs [Member]
Assets and Liabilities of Variable Interest Entities [Table Text Block]	Non-consolidated VIEs On-balance On-balance sheet At March 31, 2019: Total assets Maximum Total Trading Investment Loans All other Total All other (in millions) Asset-backed conduits ¥ 29,621,609 ¥ 6,221,274 ¥ 4,982,357 ¥ 659 ¥ 1,704,553 ¥ 3,277,145 ¥ — ¥ — ¥ — Investment funds 67,750,419 1,952,676 1,753,823 187,166 1,253,705 304,310 8,642 206 206 Special purpose entities created for structured financing 42,676,571 3,972,450 3,015,593 252,597 48,895 2,709,008 5,093 9,827 9,827 Repackaged instruments 12,885,367 3,477,545 3,383,161 690,305 2,169,798 478,252 44,806 6,087 6,087 Others 60,074,743 3,482,153 2,454,807 123,595 65,451 2,145,665 120,096 57,567 57,567 Total ¥ 213,008,709 ¥ 19,106,098 ¥ 15,589,741 ¥ 1,254,322 ¥ 5,242,402 ¥ 8,914,380 ¥ 178,637 ¥ 73,687 ¥ 73,687 Non-consolidated VIEs On-balance On-balance At September 30, 2019: Total assets Maximum Total Trading Investment Loans All other Total All other (in millions) Asset-backed conduits ¥ 28,764,664 ¥ 5,880,328 ¥ 4,768,093 ¥ 209 ¥ 1,730,253 ¥ 3,037,631 ¥ — ¥ — ¥ — Investment funds 77,435,115 2,387,773 2,189,030 485,904 1,172,673 508,348 22,105 905 905 Special purpose entities created for structured financing 40,927,261 3,897,816 2,927,608 360,859 44,726 2,515,702 6,321 14,957 14,957 Repackaged instruments 9,269,157 3,152,126 3,087,467 546,494 2,089,473 395,565 55,935 — — Others 56,608,382 2,991,332 2,118,362 140,756 9,353 1,882,405 85,848 35,542 35,542 Total ¥ 213,004,579 ¥ 18,309,375 ¥ 15,090,560 ¥ 1,534,222 ¥ 5,046,478 ¥ 8,339,651 ¥ 170,209 ¥ 51,404 ¥ 51,404

Fees and Commissions Income __2

Fees and Commissions Income [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Details of Fees and Commissions Income [Table Text Block]	Details of fees and commissions income for the six months ended September 30, 2018 and 2019 are as follows: 2018 2019 (in millions) Fees and commissions on deposits ¥ 26,568 ¥ 26,731 Fees and commissions on remittances and transfers 84,342 83,541 Fees and commissions on foreign trading business 35,453 33,117 Fees and commissions on credit card business 110,223 118,916 Fees and commissions on security-related services 119,007 108,403 Fees and commissions on administration and management services for investment funds 74,928 71,981 Trust fees 57,459 58,948 Guarantee fees (1) 22,205 22,846 Insurance commissions 23,469 21,178 Fees and commissions on real estate business 17,878 21,094 Other fees and commissions (2) 133,906 131,708 Total ¥ 705,438 ¥ 698,463 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

Business Segments _Text Block_

Business Segments [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Financial Information by Business Segment [Table Text Block]	Customer Business Retail & Japanese Global Global Asset Total Global Other Total (in billions) Six months ended September 30, 2018: Net revenue: ¥ 754.1 ¥ 261.6 ¥ 193.7 ¥ 335.8 ¥ 104.4 ¥ 1,649.6 ¥ 260.3 ¥ 24.3 ¥ 1,934.2 BK and TB (1) 361.9 199.9 130.0 (0.8 ) 49.0 740.0 165.7 109.6 1,015.3 Net interest income 232.1 75.5 56.8 (0.8 ) — 363.6 128.5 167.1 659.2 Net fees 114.2 97.7 73.0 — 49.0 333.9 (9.1 ) (23.4 ) 301.4 Other 15.6 26.7 0.2 — — 42.5 46.3 (34.1 ) 54.7 Other than BK and TB 392.2 61.7 63.7 336.6 55.4 909.6 94.6 (85.3 ) 918.9 Operating expenses 608.1 151.2 121.3 238.9 60.6 1,180.1 114.1 69.5 1,363.7 Operating profit (loss) ¥ 146.0 ¥ 110.4 ¥ 72.4 ¥ 96.9 ¥ 43.8 ¥ 469.5 ¥ 146.2 ¥ (45.2 ) ¥ 570.5 Six months ended September 30, 2019: Net revenue: ¥ 731.9 ¥ 265.0 ¥ 186.4 ¥ 371.3 ¥ 101.3 ¥ 1,655.9 ¥ 323.6 ¥ 36.7 ¥ 2,016.2 BK and TB (1) 352.1 200.4 128.5 (0.5 ) 45.6 726.1 226.9 62.8 1,015.8 Net interest income 225.8 83.0 56.3 0.4 0.8 366.3 66.7 57.6 490.6 Net fees 111.6 92.6 72.4 — 44.8 321.4 (6.3 ) (23.8 ) 291.3 Other 14.7 24.8 (0.2 ) (0.9 ) — 38.4 166.5 29.0 233.9 Other than BK and TB 379.8 64.6 57.9 371.8 55.7 929.8 96.7 (26.1 ) 1,000.4 Operating expenses 594.0 156.2 120.5 274.2 65.3 1,210.2 112.9 70.8 1,393.9 Operating profit (loss) ¥ 137.9 ¥ 108.8 ¥ 65.9 ¥ 97.1 ¥ 36.0 ¥ 445.7 ¥ 210.7 ¥ (34.1 ) ¥ 622.3 Note: (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.
Reconciliation of Operating Profit (Loss) from Segments to Condensed Consolidated Statements of Income [Table Text Block]	Six months ended 2018 2019 (in billions) Operating profit ¥ 571 ¥ 622 Reversal of (provision for) credit losses 71 (102 ) Foreign exchange losses—net (43 ) (32 ) Trading account profits (losses)—net (330 ) 505 Equity investment securities gains (losses)—net 391 (26 ) Debt investment securities gains (losses)—net 14 (136 ) Equity in earnings of equity method investees—net 140 165 Impairment of goodwill — (241 ) Reversal of ( p (42 ) 63 Other—net (76 ) 20 Income before income tax expense ¥ 696 ¥ 838

Fair Value _Text Block_ (Tables

Fair Value [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Assets and Liabilities Measured at Fair Value by Level on Recurring Basis [Table Text Block]	At March 31, 2019 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 12,821,328 ¥ 13,725,079 ¥ 785,326 ¥ 27,331,733 Debt securities Japanese national government and Japanese government agency bonds 2,117,841 512,134 — 2,629,975 Japanese prefectural and municipal bonds — 117,799 — 117,799 Foreign government and official institution bonds 9,264,028 454,365 792 9,719,185 Corporate bonds — 3,203,585 31,384 3,234,969 Residential mortgage-backed securities — 7,038,353 35,181 7,073,534 Asset-backed securities — 253,274 627,678 880,952 Other debt securities — 747 35,148 35,895 Commercial paper — 1,473,693 — 1,473,693 Equity securities (2) 1,439,459 671,129 55,143 2,165,731 Trading derivative assets 63,582 13,047,590 93,313 13,204,485 Interest rate contracts 23,430 10,067,719 17,307 10,108,456 Foreign exchange contracts 1,115 2,771,115 22,861 2,795,091 Equity contracts 39,037 139,666 9,000 187,703 Commodity contracts — 3,727 25,684 29,411 Credit derivatives — 65,363 18,461 83,824 Investment securities: Available-for-sale 22,550,086 10,684,983 283,434 33,518,503 Japanese national government and Japanese government agency bonds 20,635,872 3,441,824 — 24,077,696 Japanese prefectural and municipal bonds — 2,226,566 — 2,226,566 Foreign government and official institution bonds 1,914,214 707,959 19,246 2,641,419 Corporate bonds — 1,126,535 4,196 1,130,731 Residential mortgage-backed securities — 1,615,336 15 1,615,351 Commercial mortgage-backed securities — 128,917 2,038 130,955 Asset-backed securities — 1,371,467 131,455 1,502,922 Other debt securities — 66,379 126,484 192,863 Equity securities 5,982,629 375,914 27,820 6,386,363 Marketable equity securities 5,982,629 375,914 — 6,358,543 Nonmarketable equity securities (5) — — 27,820 27,820 Others (3) 807,193 42,184 32,378 881,755 Total ¥ 42,224,818 ¥ 37,875,750 ¥ 1,222,271 ¥ 81,322,839 Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 157,114 ¥ 5,796 ¥ — ¥ 162,910 Trading derivative liabilities 88,329 12,701,110 57,143 12,846,582 Interest rate contracts 35,179 9,839,618 21,496 9,896,293 Foreign exchange contracts 2,633 2,663,347 4,670 2,670,650 Equity contracts 50,517 126,737 6,138 183,392 Commodity contracts — 2,916 24,735 27,651 Credit derivatives — 68,492 104 68,596 Obligation to return securities received as collateral 2,912,355 174,671 — 3,087,026 Others (4) — 426,368 65,648 492,016 Total ¥ 3,157,798 ¥ 13,307,945 ¥ 122,791 ¥ 16,588,534 At September 30, 2019 Level 1 Level 2 Level 3 Fair Value (in millions) Assets Trading account assets: Trading securities (1) ¥ 14,173,666 ¥ 13,692,234 ¥ 682,862 ¥ 28,548,762 Debt securities Japanese national government and Japanese government agency bonds 3,020,794 491,006 — 3,511,800 Japanese prefectural and municipal bonds — 113,830 — 113,830 Foreign government and official institution bonds 9,518,196 493,023 3,601 10,014,820 Corporate bonds — 2,874,588 36,118 2,910,706 Residential mortgage-backed securities — 6,319,014 11,973 6,330,987 Commercial mortgage-backed securities — 811 — 811 Asset-backed securities — 409,497 536,427 945,924 Other debt securities — 16,088 34,196 50,284 Commercial paper — 2,044,252 — 2,044,252 Equity securities (2) 1,634,676 930,125 60,547 2,625,348 Trading derivative assets 87,912 14,775,434 110,752 14,974,098 Interest rate contracts 37,296 11,674,714 21,657 11,733,667 Foreign exchange contracts 2,456 2,912,812 51,634 2,966,902 Equity contracts 48,160 93,103 8,077 149,340 Commodity contracts — 3,331 25,768 29,099 Credit derivatives — 91,474 3,616 95,090 Investment securities: Available-for-sale 20,077,993 11,315,256 253,871 31,647,120 Japanese national government and Japanese government agency bonds 18,189,416 3,505,412 — 21,694,828 Japanese prefectural and municipal bonds — 2,560,514 — 2,560,514 Foreign government and official institution bonds 1,888,577 799,782 14,002 2,702,361 Corporate bonds — 1,211,976 5,736 1,217,712 Residential mortgage-backed securities — 1,657,888 15 1,657,903 Commercial mortgage-backed securities — 166,251 2,063 168,314 Asset-backed securities — 1,361,823 130,880 1,492,703 Other debt securities — 51,610 101,175 152,785 Equity securities 5,517,963 601,333 34,398 6,153,694 Marketable equity securities 5,517,963 601,333 — 6,119,296 Nonmarketable equity securities (5) — — 34,398 34,398 Others (3) 548,359 18,179 58,141 624,679 Total ¥ 40,405,893 ¥ 40,402,436 ¥ 1,140,024 ¥ 81,948,353 Liabilities Trading account liabilities: Trading securities sold, not yet purchased ¥ 382,820 ¥ 5,319 ¥ — ¥ 388,139 Trading derivative liabilities 138,690 14,096,679 55,464 14,290,833 Interest rate contracts 46,311 11,156,041 14,609 11,216,961 Foreign exchange contracts 4,477 2,762,772 5,671 2,772,920 Equity contracts 87,902 91,702 9,895 189,499 Commodity contracts — 1,823 25,198 27,021 Credit derivatives — 84,341 91 84,432 Obligation to return securities received as collateral 3,276,784 114,299 — 3,391,083 Others (4) — 465,392 39,103 504,495 Total ¥ 3,798,294 ¥ 14,681,689 ¥ 94,567 ¥ 18,574,550 Notes: (1) Includes securities measured under the fair value option. (2) Excludes certain investments valued at net asset value of private equity funds whose fair values at March 31, 2019 were ¥40,400 million and those at September 30, 2019 were ¥52,259 million, respectively. The amounts of unfunded commitments related to these private equity funds at March 31, 2019 were ¥94,483 million, and those at September 30, 2019 were ¥101,730 million, respectively. For the nature and details of these investments, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. (3) Mainly comprises 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 derivative assets designated as hedging instruments. ( 4 Includes other short-term borrowings, long-term debt, bifurcated embedded derivatives carried at fair value and derivative liabilities designated as hedging instruments. ( 5 Excludes certain investments valued at net asset value of real estate funds, private funds, and private equity funds whose fair values at March 31, 2019 ¥17,583 million, ¥9,921 million and nil respectively, and those at September 30, 2019 were ¥19,954 million, ¥9,797 million and ¥9,168 million, respectively. The amounts of unfunded commitments related to these real estate funds, private funds and private equity funds at March 31, 2019 were ¥2,054 million, nil and nil respectively, and those at September 30, 2019 were ¥2,047 million, nil and nil, respectively. For the nature and details of these investments, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.
Reconciliation of Assets and Liabilities Measured at Fair Value on Recurring Basis Using Level 3 Inputs [Table Text Block]	Total gains (losses) Change in March 31, Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, (in millions) Assets Trading account assets: Trading securities (1) ¥ 827,493 ¥ 42,948 (2) ¥ — ¥ 274,937 ¥ — ¥ (177,306 ) ¥ (181,133 ) ¥ 4,532 ¥ (15,067 ) ¥ 776,404 ¥ 40,167 (2) Debt securities Foreign government and official institution bonds 1,047 214 — 40,600 — (40,710 ) (16 ) — — 1,135 6 Corporate bonds 23,092 682 — 729 — (193 ) (1,375 ) 4,532 (5) (15,067 ) (5) 12,400 642 Residential mortgage-backed securities 41,141 667 — — — — (3,072 ) — — 38,736 636 Asset-backed securities 684,637 38,155 — 216,109 — (136,388 ) (175,579 ) — — 626,934 36,181 Other debt securities 33,450 2,346 — — — — — — — 35,796 2,346 Equity securities 44,126 884 — 17,499 — (15 ) (1,091 ) — — 61,403 356 Trading derivatives—net 12,119 3,739 (2) (545 ) 582 (429 ) — (34,413 ) 23,922 8,424 13,399 (7,391 ) (2) Interest rate contracts—net 14,596 2,127 (134 ) — (94 ) — (18,154 ) 311 (1,798 ) (3,146 ) 2,256 Foreign exchange contracts—net 6,736 (12,064 ) (262 ) 18 — — (2,614 ) 23,611 (5) (2,863 ) 12,562 (11,544 ) Equity contracts—net (10,685 ) 13,488 (153 ) — — — (13,690 ) — 13,085 (5) 2,045 964 Commodity contracts—net 683 156 4 564 (335 ) — (1 ) — — 1,071 900 Credit derivatives—net 789 32 — — — — 46 — — 867 33 Investment securities: Available-for-sale 350,660 6,323 (3) (9,056 ) 131,326 — — (181,004 ) 102 (89 ) 298,262 (83 ) (3) Foreign government and official institution bonds 20,192 — (1,002 ) 242 — — (487 ) — — 18,945 — Corporate bonds 6,037 4 (3 ) 1,670 — — (5,318 ) 102 (89 ) 2,403 (83 ) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed securities 2,430 — (104 ) — — — (33 ) — — 2,293 — Asset-backed securities 161,172 6,319 (2,806 ) 129,400 — — (163,469 ) — — 130,616 — Other debt securities 160,814 — (5,141 ) 14 — — (11,697 ) — — 143,990 — Equity securities 28,359 (1,199 ) (3) — 2,203 — (825 ) — — (125 ) 28,413 (1,602 ) (3) Nonmarketable equity securities 28,359 (1,199 ) — 2,203 — (825 ) — — (125 ) 28,413 (1,602 ) Others 8,660 966 (7) (22 ) 8,601 — (183 ) — — — 18,022 872 (7) Total ¥ 1,227,291 ¥ 52,777 ¥ (9,623 ) ¥ 417,649 ¥ (429 ) ¥ (178,314 ) ¥ (396,550 ) ¥ 28,556 ¥ (6,857 ) ¥ 1,134,500 ¥ 31,963 Liabilities Others ¥ (25,528 ) ¥ (5,160 ) (4) ¥ 2,262 ¥ — ¥ 848 ¥ — ¥ (11,902 ) ¥ 14,454 (6) ¥ 24,235 (6) ¥ 5,005 ¥ (1,049 ) (4) Total ¥ (25,528 ) ¥ (5,160 ) ¥ 2,262 ¥ — ¥ 848 ¥ — ¥ (11,902 ) ¥ 14,454 ¥ 24,235 ¥ 5,005 ¥ (1,049 ) Total gains (losses) Change in March 31, Included Included Purchases Issues Sales Settlements Transfers Transfers September 30, (in millions) Assets Trading account assets: Trading securities (1) ¥ 785,326 ¥ (20,158 ) (2) ¥ — ¥ 134,609 ¥ — ¥ (120,505 ) ¥ (105,890 ) ¥ 24,882 ¥ (15,402 ) ¥ 682,862 ¥ (19,011 ) (2) Debt securities Foreign government and official institution 792 347 — 50,548 — (48,068 ) (18 ) — — 3,601 (11 ) Corporate bonds 31,384 (76 ) — — — (1,049 ) (3,621 ) 24,882 (5) (15,402 ) (5) 36,118 6 Residential mortgage-backed securities 35,181 (1,425 ) — — — (11,134 ) (10,649 ) — — 11,973 (1,109 ) Asset-backed securities 627,678 (20,780 ) — 79,717 — (60,249 ) (89,939 ) — — 536,427 (18,740 ) Other debt securities 35,148 (952 ) — — — — — — — 34,196 (952 ) Equity securities 55,143 2,728 — 4,344 — (5 ) (1,663 ) — — 60,547 1,795 Trading derivatives—net 36,170 4,283 (2) (107 ) 99 (773 ) — (21,616 ) 37,553 (321 ) 55,288 1,797 (2) Interest rate contracts—net (4,189 ) 14,185 (113 ) — — — (5,471 ) 2,976 (340 ) 7,048 6,246 Foreign exchange contracts—net 18,191 (10,614 ) (87 ) 3 — — 4,037 34,577 (5) (144 ) 45,963 (5,580 ) Equity contracts—net 2,862 743 87 96 (419 ) — (5,350 ) — 163 (1,818 ) 703 Commodity contracts—net 949 (27 ) 2 — (354 ) — — — — 570 645 Credit derivatives—net 18,357 (4 ) 4 — — — (14,832 ) — — 3,525 (217 ) Investment securities: Available-for-sale 283,434 1,331 (3) (5,379 ) 134,575 — — (162,520 ) 5,450 (3,020 ) 253,871 (619 ) (3) Foreign government and official institution bonds 19,246 — 209 382 — — (5,835 ) — — 14,002 — Corporate bonds 4,196 (383 ) 114 20 — — (641 ) 5,450 (5) (3,020 ) (5) 5,736 (619 ) Residential mortgage-backed securities 15 — — — — — — — — 15 — Commercial mortgage-backed securities 2,038 — 58 — — — (33 ) — — 2,063 — Asset-backed securities 131,455 1,714 (3,914 ) 134,169 — — (132,544 ) — — 130,880 — Other debt securities 126,484 — (1,846 ) 4 — — (23,467 ) — — 101,175 — Equity securities 27,820 2,660 (3) — 5,636 — (1,515 ) (1 ) — (202 ) 34,398 1,736 (3) Nonmarketable equity securities 27,820 2,660 — 5,636 — (1,515 ) (1 ) — (202 ) 34,398 1,736 Others 32,378 (8,350 ) (7) (1,732 ) 35,894 — (48 ) (1 ) — — 58,141 (8,346 ) (7) Total ¥ 1,165,128 ¥ (20,234 ) ¥ (7,218 ) ¥ 310,813 ¥ (773 ) ¥ (122,068 ) ¥ (290,028 ) ¥ 67,885 ¥ (18,945 ) ¥ 1,084,560 ¥ (24,443 ) Liabilities Others ¥ 65,648 ¥ (18,504 ) (4) ¥ 1,807 ¥ — ¥ 2,338 ¥ — ¥ (9,708 ) ¥ 1,171 (6) ¥ (37,043 ) (6) ¥ 39,103 ¥ (16,212 ) (4) Total ¥ 65,648 ¥ (18,504 ) ¥ 1,807 ¥ — ¥ 2,338 ¥ — ¥ (9,708 ) ¥ 1,171 ¥ (37,043 ) ¥ 39,103 ¥ (16,212 ) Notes: (1 ) Includes Trading securities measured under the fair value option. (2 ) Included in Trading account profits (losses)—net and in Foreign exchange losses—net. (3 ) Included in Investment securities gains—net. (4 ) Included in Trading account profits (losses)—net. (5 ) Transfers into Level 3 for Foreign exchange contract were mainly caused by the valuation using certain unobservable input. Transfers into (out of) Level 3 for corporate bonds were mainly caused by the decrease (increase) in liquidity or the availability of the quoted prices provided by third-party venders and Equity contracts—net were mainly caused by the change of valuation model and the change cease using certain unobservable input. (6 ) Transfers into (out of) Level 3 for bifurcated embedded derivatives in Others 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 com m s non-interest
Carrying Value of Assets Measured at Fair Value on Nonrecurring Basis by Level [Table Text Block]	March 31, 2019 September 30, 2019 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total (in millions) Assets Investment securities (1)(2) ¥ — ¥ 80,779 ¥ 4,208 ¥ 84,987 ¥ — ¥ 7,300 ¥ 2,474 ¥ 9,774 Loans 2,656 9,104 250,678 262,438 2,469 7,586 262,451 272,506 Loans held for sale — — 77,506 77,506 — — 75,319 75,319 Collateral dependent loans 2,656 9,104 173,172 184,932 2,469 7,586 187,132 197,187 Premises and equipment — — 35,352 35,352 — — 13,595 13,595 Intangible assets — — 19,635 19,635 — — 395 395 Other assets 136,528 49,756 9,774 196,058 17,986 43,905 14,614 76,505 Investments in equity method investees (1) 136,528 49,756 — 186,284 17,986 — 5,911 23,897 Other — — 9,774 9,774 — 43,905 (3) 8,703 52,608 Total ¥ 139,184 ¥ 139,639 ¥ 319,647 ¥ 598,470 ¥ 20,455 ¥ 58,791 ¥ 293,529 ¥ 372,775 Notes: (1 ) Excludes certain investments valued at net asset value of ¥8,866 million and ¥3,230 million at March 31, 2019 and September 30, 2019, respectively. The unfunded commitments related to these investments are ¥12,242 million and ¥ 12,176 (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 ) Includes certain held for sale assets that are measured at fair value on a nonrecurring basis, including impairment.
Losses (Gains) Recorded as a Result of Changes in Fair Value Measured on a Nonrecurring Basis [Table Text Block]	Losses(gains) for the 2018 2019 (in millions) Investment securities ¥ (8,013 ) ¥ 2,193 Loans 23,727 30,664 Loans held for sale 3 8,468 Collateral dependent loans 23,724 22,196 Premises and equipment 3,552 5,975 Intangible assets 667 2,334 Goodwill — 241,356 Other assets 10,696 15,437 Investments in equity method investees 10,034 4,944 Other 662 10,493 Total ¥ 30,629 ¥ 297,959
Gains (Losses) Related to Instruments for which Fair Value Option was Elected [Table Text Block]	Six months ended September 30, 2018 2019 Trading Foreign Total Trading Foreign Total (in millions) Financial assets: Trading account securities (1) ¥ (157,359 ) ¥ 638,886 ¥ 481,527 ¥ 437,931 ¥ (654,622 ) ¥ (216,691 ) Total ¥ (157,359 ) ¥ 638,886 ¥ 481,527 ¥ 437,931 ¥ (654,622 ) ¥ (216,691 ) Financial liabilities: Other short-term borrowings (2) ¥ (1,446 ) ¥ — ¥ (1,446 ) ¥ (778 ) ¥ — ¥ (778 ) Long-term debt (2) (6,491 ) — (6,491 ) (20,559 ) — (20,559 ) Total ¥ (7,937 ) ¥ — ¥ (7,937 ) ¥ (21,337 ) ¥ — ¥ (21,337 )
Differences between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding [Table Text Block]	March 31, 2019 September 30, 2019 Remaining Fair value Fair value Remaining Fair value Fair value (in millions) Financial liabilities: Long-term debt ¥ 358,730 ¥ 325,808 ¥ (32,922 ) ¥ 319,736 ¥ 299,768 ¥ (19,968 ) Total ¥ 358,730 ¥ 325,808 ¥ (32,922 ) ¥ 319,736 ¥ 299,768 ¥ (19,968 )
Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments Not Carried at Fair Value on Recurring Basis on Condensed Consolidated Balance Sheets by Level [Table Text Block]	At March 31, 2019 Carrying Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 33,924 ¥ 33,924 ¥ 33,924 ¥ — ¥ — Interest-earning deposits in other banks 40,647 40,647 — 40,647 — Call loans and funds sold 1,110 1,110 — 1,110 — Receivables under resale agreements 10,975 10,975 — 10,975 — Receivables under securities borrowing transactions 2,759 2,759 — 2,759 — Investment securities 4,442 4,453 1,197 1,135 2,121 Loans, net of allowance for credit losses (1) 116,213 117,064 3 247 116,814 Other financial assets (2) 7,455 7,455 — 7,455 — Financial liabilities: Deposits Non-interest-bearing ¥ 30,443 ¥ 30,443 ¥ — ¥ 30,443 ¥ — Interest-bearing 168,846 168,899 — 168,899 — Total deposits 199,289 199,342 — 199,342 — Call money and funds purchased 2,450 2,450 — 2,450 — Payables under repurchase agreements 25,225 25,225 — 25,225 — Payables under securities lending transactions 913 913 — 913 — Due to trust account and other short-term borrowings 9,177 9,177 — 9,177 — Long-term debt 27,790 27,968 — 27,968 — Other financial liabilities 6,781 6,781 — 6,781 — At September 30, 2019 Carrying Estimated fair value Total Level 1 Level 2 Level 3 (in billions) Financial assets: Cash and due from banks ¥ 34,248 ¥ 34,248 ¥ 34,248 ¥ — ¥ — Interest-earning deposits in other banks 39,080 39,080 — 39,080 — Call loans and funds sold 1,048 1,048 — 1,048 — Receivables under resale agreements 16,247 16,247 — 16,247 — Receivables under securities borrowing transactions 2,874 2,874 — 2,874 — Investment securities 4,220 4,258 1,177 1,048 2,033 Loans, net of allowance for credit losses (1) 114,541 115,593 2 254 115,337 Other financial assets (2) 7,976 7,976 — 7,976 — Financial liabilities: Deposits Non-interest-bearing ¥ 30,511 ¥ 30,511 ¥ — ¥ 30,511 ¥ — Interest-bearing 167,672 167,742 — 167,742 — Total deposits 198,183 198,253 — 198,253 — Call money and funds purchased 2,296 2,296 — 2,296 — Payables under repurchase agreements 26,616 26,616 — 26,616 — Payables under securities lending transactions 1,111 1,111 — 1,111 — Due to trust account and other short-term borrowings 10,082 10,082 — 10,082 — Long-term debt 27,430 27,802 — 27,802 — Other financial liabilities 6,912 6,912 — 6,912 — Notes: (1) Includes loans held for sale and collateral dependent loans measured at fair value on a nonrecurring basis. Refer to “Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis” for the details of the level classification. (2) Excludes investments in equity method investees of ¥ 2,487 2,286
Fair Value, Measurements, Recurring [Member]
Quantitative Information about Level 3 Fair Value Measurements [Table Text Block]	At March 31, 2019 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted a (2) (in millions) Assets Trading securities and Investment securities: Foreign government and official institution bonds ¥ 19,246 Return on equity method Probability of default 0.0%~ 0.4 0.3 % Recovery rate 60.0%~70.0% 66.7 % Market-required return on capital 10.0 10.0 Residential mortgage-backed securities, Commercial mortgage-backed securities and Asset-backed securities 109,213 Discounted cash flow Probability of default 1.2 5.3 5.0 % Recovery rate 60.0 76.0 67.2 % Loan price 90.5%~100.3% 95.4 % 587,577 Internal model (4) Asset correlations 10.0% 10.0 % Discount factor 1.0%~1.2% 1.2 % Prepayment rate 22.7% 22.7 % Probability of default 0.0 90.1 —​​​​​​​ (3) Recovery rate 64.3% 64.3 % Other debt securities 35,148 Discounted cash flow Liquidity premium 1.0%~2.4% 1.3 % 112,822 Return on equity method Probability of default 0.0 25.0 0.3 % Recovery rate 40.0 90.0 78.0 % Market-required return on capital 8.0 10.0 9.5 % At March 31, 2019 Fair value (1) Valuation technique Significant unobservable inputs Range (in millions) Trading derivatives—net: Interest rate (4,189 ) Option model Probability of default 0.0%~12.0% Correlation between interest rates 29.2%~51.3% Correlation between interest rate and foreign exchange rate 22.8%~60.0% Recovery rate 41.0%~48.0% Volatility 11.0%~71.3% Foreign exchange contracts—net 18,198 Option model Probability of default 0.0%~12.0% Correlation between interest rates 35.0%~70.0% Correlation between interest rate and foreign exchange rate 14.8%~60.0% Recovery rate 41.0%~48.0% Correlation between underlying assets 65.0% Volatility 9.7%~18.2% Equity contracts—net (2,727 ) Option model Correlation between foreign exchange rate and equity 7.0%~64.1% Correlation between equities 21.6%~80.3% Correlation between underlying assets 51.7%~82.0% Volatility 21.0%~30.0% 5,878 Discounted cash flow Term of litigation 1.0year At September 30, 2019 Fair value (1) Valuation technique Significant unobservable inputs Range Weighted a (2) (in millions) Assets Trading securities and Investment securities: Foreign government and official institution bonds ¥ 14,002 Return on equity method Probability of default 0.1%~1.3% 0.4 % Recovery rate 55.0%~90.0% 70.4 % Market-required return on capital 8.0%~ 10.0% 10.0 % Corporate bonds 5,212 Discounted cash flow Probability of default 7.2% 7.2% Recovery rate 41.0%~70.3% 42.5% Residential mortgage- backed securities, Commercial mortgage- backed securities and Asset-backed securities 81,804 Discounted cash flow Probability of default 1.2%~5.3% 5.0 % Recovery rate 60.0%~76.0% 67.7 % 504,203 Internal model (4) Asset correlations 10.0% 10.0 % Discount factor 1.1%~ 1.5% 1.4 % Prepayment rate 16.3% 16.3 % Probability of default 0.0%~86.3% — (3) Recovery rate 63.8% 63.8 % Other debt securities 34,196 Discounted cash flow Liquidity premium 1.0%~2.4% 1.3 % 87,626 Return on equity method Probability of default 0.0%~25.0% 0.3 % Recovery rate 60.0%~90.0% 79.6 % Market-required return on capital 8.0%~10.0% 9.4 % At September 30, 2019 Fair value (1) Valuation technique Significant unobservable inputs Range (in millions) Trading derivatives—net: Interest rate contracts—net 6,775 Option model Probability of default 0.0%~11.3% Correlation between interest rates 34.2%~58.3% Correlation between interest rate and foreign exchange rate 25.8%~60.0% Recovery rate 41.0%~48.0% Volatility 0.0%~100.0% Foreign exchange contracts—net 45,967 Option model Probability of default 0.0%~11.3% Correlation between interest rates 35.0%~70.0% Correlation between interest rate and foreign exchange rate 13.9%~60.0% Recovery rate 41.0%~48.0% Correlation between underlying assets 60.0% Volatility 8.1%~18.0% Equity contracts—net (7,097 ) Option model Correlation between foreign exchange rate and equity 7.0%~ 58.2% Correlation between equities 20.7%~73.7% Correlation between underlying assets 51.7%~82.0% Volatility 12.2%~30.0% 5,854 Discounted cash flow Term of litigation 0.6 Credit derivatives—net 1,735 Internal model Correlation between interest rate and foreign exchange rate 33.9% Notes: (1) The fair value as of March 31, 2019 and September 30, 2019 excludes the fair value of investments valued using vendor prices. (2) Weighted averages are calculated by weighing each input by the relative fair value of the respective financial instruments. (3) See “Probability of default” in “Sensitivity to and range of unobservable inputs” in Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019. (4) For further detail of Internal model, refer to the last paragraph of “Trading Account Assets and Liabilities—Trading Account Securities” in Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.

Investments in Equity Method _2

Investments in Equity Method Investees [Text Block] (Tables)	6 Months Ended
	Sep. 30, 2019
Morgan Stanley [Member]
Summarized Operating Results of Morgan Stanley [Table Text Block]	2018 2019 (in billions) Net revenues ¥ 2,258 ¥ 2,203 Total non-interest 1,601 1,593 Income from continuing operations before income taxes 657 610 Net income applicable to Morgan Stanley 502 475

Basis of Semiannual Condensed_3

Basis of Semiannual Condensed Consolidated Financial Statements (Narrative) (Detail) - JPY (¥) ¥ in Millions	Apr. 01, 2019	Sep. 30, 2019
Accounting Changes:
Right-of-Use Assets		¥ 406,567
Lease liabilities		¥ 482,474
Leases [Member]
Accounting Changes:
Right-of-Use Assets	¥ 428,000
Lease liabilities	502,000
Decrease to retained earnings	¥ (15,000)

Business Developments (Narrativ

Business Developments (Narrative) (Detail) ¥ / shares in Units, Rp / shares in Units, ¥ in Millions, Rp in Billions

Aug. 02, 2019JPY (¥)Subsidiaries

May 01, 2019

Apr. 29, 2019JPY (¥)¥ / shares

Apr. 29, 2019IDR (Rp)

Aug. 03, 2018JPY (¥)¥ / shares

Aug. 03, 2018IDR (Rp)

Dec. 29, 2017JPY (¥)¥ / shares

Dec. 29, 2017IDR (Rp)

Sep. 30, 2019JPY (¥)Offices

Sep. 30, 2019JPY (¥)Offices

Sep. 30, 2018JPY (¥)

Apr. 29, 2019Rp / shares

Mar. 31, 2019JPY (¥)

Aug. 03, 2018Rp / shares

Mar. 31, 2018JPY (¥)

Dec. 29, 2017Rp / shares

Dec. 26, 2017

Business Developments [Line Items]

Goodwill, recorded on acquisition

¥ 616,620

¥ 616,620

¥ 431,155

¥ 433,891

¥ 441,334

Remeasurement profits

41,218

Revenue

1,035,632

1,204,113

Earnings

¥ 616,542

553,251

MUFG Bank's Acquisition of Shares in Bank Danamon in Indonesia [Member]

Business Developments [Line Items]

Final equity interest expected upon the completion of proposed transactions

73.80%

Number of offices in Indonesia | Offices

900

900

Description of strategic investment

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.

Equity interest after acquisition, in aggregated percentage

94.10%

94.00%

94.00%

40.00%

40.00%

19.90%

19.90%

Price per share paid | (per share)

¥ 77

[1]

¥ 69

[2]

¥ 70

[3]

Rp 9,590

Rp 8,921

Rp 8,323

Investment amount paid

¥ 397,000

Rp 50,000

¥ 132,300

[2]

Rp 17,187

¥ 133,000

[3]

Rp 15,875

Description of Calculation basis

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.

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.

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.

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.

Price book-value ratio

2

2

2

2

Additional equity interests acquired, in percentage

54.00%

54.00%

20.10%

20.10%

Goodwill, recorded on acquisition

¥ 254,271

Intangible assets, recorded on acquisition

[4]

¥ 146,899

Noncontrolling interests, recorded on acquisition

¥ 51,314

¥ 51,314

Equity interest remeasured to fair value

271,830

Remeasurement profits

41,218

Acquisition-related costs

869

Exchange rate of IDR

0.0080

0.0077

0.0084

0.0077

0.0084

Weighted average amortization period, in years

13 years 2 months 12 days

13 years 2 months 12 days

Total assets

¥ 1,728,480

Total liabilities

1,242,115

MUFG Bank's Acquisition of Shares in Bank Danamon in Indonesia [Member] | Customer Relationships [Member]

Business Developments [Line Items]

Intangible assets, recorded on acquisition

¥ 79,552

Weighted average amortization period, in years

13 years 1 month 6 days

13 years 1 month 6 days

MUFG Bank's Acquisition of Shares in Bank Danamon in Indonesia [Member] | Pro Forma [Member]

Business Developments [Line Items]

Earnings

7,420

8,058

Impact of amortizing certain acquisition accounting adjustments

5,723

5,796

MUFG Bank's Acquisition of Shares in Bank Danamon in Indonesia [Member] | Estimated Fair Value [Member]

Business Developments [Line Items]

Loans not subject to the guidance on loans and debt securities acquired with deteriorated credit quality

1,068,906

1,068,906

Gross contractual amounts receivable for loans

1,082,422

1,082,422

Gross contractual amounts receivable for loans not expected to be collected

34,363

34,363

MUFG Bank's Acquisition of Shares in Bank Danamon in Indonesia [Member] | Danamon and Subsidiaries [Member]

Business Developments [Line Items]

Revenue

41,745

Earnings

¥ 223

MUFG Bank's Acquisition of Shares in Bank Nusantara Parahyangan in Indonesia [Member]

Business Developments [Line Items]

Equity interest after acquisition, in aggregated percentage

99.90%

99.90%

Price per share paid | (per share)

¥ 33

[1]

Rp 4,088

Investment amount paid

¥ 24,100

Rp 3,000

Additional equity interests acquired, in percentage

92.10%

92.10%

Exchange rate of IDR

0.0080

Mitsubishi UFJ Trust and Banking's Acquisition of Colonial First State Global Asset Management [Member]

Business Developments [Line Items]

Equity interest after acquisition, in aggregated percentage

100.00%

Goodwill, recorded on acquisition

¥ 184,043

Intangible assets, recorded on acquisition

102,315

Acquisition-related costs

¥ 3,744

Revenue

Number of subsidiaries acquired | Subsidiaries

9

Payment in cash

¥ 297,217

Additional liabilities

¥ 14,960

Weighted average amortization period, in years

18 years 9 months 18 days

Expense

Mitsubishi UFJ Trust and Banking's Acquisition of Colonial First State Global Asset Management [Member] | Customer Relationships [Member]

Business Developments [Line Items]

Intangible assets, recorded on acquisition

¥ 97,117

Weighted average amortization period, in years

18 years

Mitsubishi UFJ Trust and Banking's Acquisition of Colonial First State Global Asset Management [Member] | Pro Forma [Member]

Business Developments [Line Items]

Earnings

7,479

9,375

Impact of amortizing certain acquisition accounting adjustments

¥ 2,952

¥ 3,238

Mitsubishi UFJ Trust and Banking's Acquisition of Colonial First State Global Asset Management [Member] | Estimated Fair Value [Member]

Business Developments [Line Items]

Intangible assets, recorded on acquisition

¥ 102,315

Total assets

194,012

Cash and bank deposits

42,019

Total liabilities

45,418

Accrued bonuses

¥ 20,958

[1]

Calculated based on the exchange rate of IDR1 = ¥0.0080

[2]

Calculated based on the exchange rate of IDR1 = ¥0.0077

[3]

Calculated based on the exchange rate of IDR1 = ¥0.0084

[4]

Intangible assets with weighted average amortization period of 13.2 years primarily include ¥79,552 million of customer relationships with weighted average amortization period of 13.1 years and ¥44,140 million of core deposit intangibles with weighted average amortization period of 10.1 years.

Business Developments (Estimate

Business Developments (Estimated Fair Values of the Assets Acquired and Liabilities Assumed) (Detail) - MUFG Bank's Acquisition of Shares in Bank Danamon in Indonesia [Member] ¥ in Millions	Apr. 29, 2019JPY (¥)
Business Developments [Line Items]
Loans	¥ 1,086,638
Intangible assets	146,899	[1]
Total assets	1,728,480
Deposits—Total deposits	915,075
Total liabilities	¥ 1,242,115
Weighted average amortization period, in years	13 years 2 months 12 days
Customer Relationships [Member]
Business Developments [Line Items]
Intangible assets	¥ 79,552
Weighted average amortization period, in years	13 years 1 month 6 days
Core Deposit Intangibles [Member]
Business Developments [Line Items]
Intangible assets	¥ 44,140
Weighted average amortization period, in years	10 years 1 month 6 days
[1]	Intangible assets with weighted average amortization period of 13.2 years primarily include ¥79,552 million of customer relationships with weighted average amortization period of 13.1 years and ¥44,140 million of core deposit intangibles with weighted average amortization period of 10.1 years.

Business Developments (Pro Form

Business Developments (Pro Forma Statements of Income Related to Acquisition of Danamon (Unaudited)) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Statement of income data:
Net interest income	¥ 1,137,753	¥ 1,133,053
Non-interest income—Total	1,429,163	899,690
Net income attributable to Mitsubishi UFJ Financial Group	616,542	553,251
MUFG Bank's Acquisition of Shares in Bank Danamon in Indonesia [Member] | Pro Forma [Member]
Statement of income data:
Net interest income	61,073	68,378
Non-interest income—Total	14,387	13,837
Net income attributable to Mitsubishi UFJ Financial Group	¥ 7,420	¥ 8,058

Business Developments (Pro Fo_2

Business Developments (Pro Forma Statements of Income Related to Acquisition of FSI (Unaudited)) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Statement of income data:
Non-interest income—Total	¥ 1,429,163	¥ 899,690
Net income attributable to Mitsubishi UFJ Financial Group	616,542	553,251
Mitsubishi UFJ Trust and Banking's Acquisition of Colonial First State Global Asset Management [Member] | Pro Forma [Member]
Statement of income data:
Non-interest income—Total	35,294	42,222
Net income attributable to Mitsubishi UFJ Financial Group	¥ 7,479	¥ 9,375

Investment Securities (Narrativ

Investment Securities (Narrative) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019	Mar. 31, 2018
Investment Securities [Line Items]
Gross realized gains on sales of Available-for-sale debt securities	¥ 61,039	¥ 23,746
Gross realized losses on sales of Available-for-sale debt securities	15,800	9,495
Other-than-temporary impairment ("OTTI") losses of debt securities included in Investment securities gains—net	661	85
Other-than-temporary impairment ("OTTI") losses of investment securities	582	81
Corporate Bonds [Member]
Investment Securities [Line Items]
Cumulative declines in fair value of the credit impaired debt securities	1,298	1,826
Credit loss components of impairment losses recognized in earnings	2,126	3,350	¥ 1,761	¥ 3,498
Other factors of impairment losses recognized in Accumulated OCI before taxes	828	¥ 1,524
Residential Mortgage-backed Securities [Member]
Investment Securities [Line Items]
Other-than-temporary impairment ("OTTI") losses of investment securities
Asset-backed Securities [Member]
Investment Securities [Line Items]
Other-than-temporary impairment ("OTTI") losses of investment securities
Other Debt Securities [Member]
Investment Securities [Line Items]
Other-than-temporary impairment ("OTTI") losses of investment securities

Investment Securities (Amortize

Investment Securities (Amortized Cost, Gross Unrealized Gains (Losses) and Fair Value of Investment Securities) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended		12 Months Ended
	Sep. 30, 2019		Mar. 31, 2019
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	¥ 31,201,638		¥ 33,174,487
Available-for-sale debt securities, Gross unrealized gains	469,207		400,534
Available-for-sale debt securities, Gross unrealized losses	23,725		56,518
Available-for-sale debt securities, Fair value	31,647,120		33,518,503
Held-to-maturity debt securities, Amortized cost	4,219,827		4,441,901
Held-to-maturity debt securities, Gross unrealized gains	61,875		46,339
Held-to-maturity debt securities, Gross unrealized losses	24,193		35,293
Held-to-maturity debt securities, Fair value	4,257,509		4,452,947
Japanese National Government and Japanese Government Agency Bonds [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	21,345,842		23,748,558
Available-for-sale debt securities, Gross unrealized gains	360,037		330,115
Available-for-sale debt securities, Gross unrealized losses	11,051		977
Available-for-sale debt securities, Fair value	21,694,828		24,077,696
Held-to-maturity debt securities, Amortized cost	1,100,638		1,100,701
Held-to-maturity debt securities, Gross unrealized gains	46,492		41,619
Held-to-maturity debt securities, Gross unrealized losses
Held-to-maturity debt securities, Fair value	1,147,130		1,142,320
Japanese Prefectural and Municipal Bonds [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	2,537,868		2,203,978
Available-for-sale debt securities, Gross unrealized gains	22,897		22,593
Available-for-sale debt securities, Gross unrealized losses	251		5
Available-for-sale debt securities, Fair value	2,560,514		2,226,566
Foreign Government and Official Institution Bonds [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	2,660,491		2,648,874
Available-for-sale debt securities, Gross unrealized gains	45,464		18,099
Available-for-sale debt securities, Gross unrealized losses	3,594		25,554
Available-for-sale debt securities, Fair value	2,702,361		2,641,419
Held-to-maturity debt securities, Amortized cost	97,068		138,731
Held-to-maturity debt securities, Gross unrealized gains	144		193
Held-to-maturity debt securities, Gross unrealized losses	377		212
Held-to-maturity debt securities, Fair value	96,835		138,712
Corporate Bonds [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,203,227		1,117,302
Available-for-sale debt securities, Gross unrealized gains	14,818		14,251
Available-for-sale debt securities, Gross unrealized losses	333		822
Available-for-sale debt securities, Fair value	1,217,712		1,130,731
Residential Mortgage-backed Securities [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,655,995		1,635,220
Available-for-sale debt securities, Gross unrealized gains	7,473		1,469
Available-for-sale debt securities, Gross unrealized losses	5,565		21,338
Available-for-sale debt securities, Fair value	1,657,903		1,615,351
Held-to-maturity debt securities, Amortized cost	830,192		910,990
Held-to-maturity debt securities, Gross unrealized gains	10,169		1,209
Held-to-maturity debt securities, Gross unrealized losses	3,386	[1]	21,202	[2]
Held-to-maturity debt securities, Fair value	836,975		890,997
Residential Mortgage-backed Securities [Member] | MUAH [Member]
Investment Securities [Line Items]
Unrealized losses before taxes at the date of reclassification from Available-for-sale debt securities to Held-to-maturity debt securities remaining in Accumulated OCI	9,500		10,591
Commercial Mortgage-backed Securities [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	162,997		132,996
Available-for-sale debt securities, Gross unrealized gains	5,330		310
Available-for-sale debt securities, Gross unrealized losses	13		2,351
Available-for-sale debt securities, Fair value	168,314		130,955
Held-to-maturity debt securities, Amortized cost	140,589		160,267
Held-to-maturity debt securities, Gross unrealized gains	3,459		1,903
Held-to-maturity debt securities, Gross unrealized losses	792	[1]	2,032	[2]
Held-to-maturity debt securities, Fair value	143,256		160,138
Commercial Mortgage-backed Securities [Member] | MUAH [Member]
Investment Securities [Line Items]
Unrealized losses before taxes at the date of reclassification from Available-for-sale debt securities to Held-to-maturity debt securities remaining in Accumulated OCI	3,708		4,667
Asset-backed Securities [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	1,483,711		1,494,629
Available-for-sale debt securities, Gross unrealized gains	10,036		10,846
Available-for-sale debt securities, Gross unrealized losses	1,044		2,553
Available-for-sale debt securities, Fair value	1,492,703		1,502,922
Held-to-maturity debt securities, Amortized cost	2,051,340		2,131,212
Held-to-maturity debt securities, Gross unrealized gains	1,611		1,415
Held-to-maturity debt securities, Gross unrealized losses	19,638		11,847
Held-to-maturity debt securities, Fair value	2,033,313		2,120,780
Other Debt Securities [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Amortized cost	151,507	[3]	192,930	[4]
Available-for-sale debt securities, Gross unrealized gains	3,152	[3]	2,851	[4]
Available-for-sale debt securities, Gross unrealized losses	1,874	[3]	2,918	[4]
Available-for-sale debt securities, Fair value	152,785	[3]	192,863	[4]
Other Debt Securities [Member] | Private Placement Debt Conduit Bonds [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value	¥ 87,626		¥ 112,822
[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 condensed consolidated balance sheets were ¥9,500 million and ¥3,708 million, respectively, at September 30, 2019 and are not included in the table above.
[2]	MUFG Americas Holdings Corporation (“MUFG Americas Holdings ” or “MUAH”) 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 condensed consolidated balance sheets were ¥10,591 million and ¥4,667 million, respectively, at March 31, 2019 and are not included in the table above.
[3]	Other debt securities in the table above mainly include ¥87,626 million of private placement debt conduit bonds.
[4]	Other debt securities in the table above mainly include ¥112,822 million of private placement debt conduit bonds.

Investment Securities (Amorti_2

Investment Securities (Amortized Cost and Fair Value by Contractual Maturity) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2019	Mar. 31, 2019
Held-to-maturity debt securities, Amortized cost:
Due in one year or less	¥ 53,532
Due from one year to five years	916,865
Due from five years to ten years	874,560
Due after ten years	2,374,870
Held-to-maturity debt securities, Amortized cost	4,219,827	¥ 4,441,901
Held-to-maturity debt securities, Fair value:
Due in one year or less	53,593
Due from one year to five years	954,658
Due from five years to ten years	882,891
Due after ten years	2,366,367
Held-to-maturity debt securities, Fair value	4,257,509	4,452,947
Available-for-sale debt securities, Fair value:
Due in one year or less	13,671,457
Due from one year to five years	7,024,193
Due from five years to ten years	5,174,748
Due after ten years	5,776,722
Available-for-sale debt securities, Fair value	¥ 31,647,120	¥ 33,518,503

Investment Securities (Investme

Investment Securities (Investments by Length and Category in Continuous Loss Position) (Detail) ¥ in Millions	Sep. 30, 2019JPY (¥)Securities	Mar. 31, 2019JPY (¥)Securities
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 3,922,544	¥ 5,324,873
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	13,193	8,419
Available-for-sale debt securities, Fair value, 12 months or more	999,134	1,988,575
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	10,532	48,099
Available-for-sale debt securities, Fair value, Total	4,921,678	7,313,448
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 23,725	¥ 56,518
Available-for-sale debt securities, Number of securities | Securities	751	1,079
Held-to-maturity debt securities, Fair value, Less than 12 months	¥ 1,545,773	¥ 1,500,382
Held-to-maturity debt securities, Gross unrealized losses, Less than 12 months	16,457	11,432
Held-to-maturity debt securities, Fair value, 12 months or more	1,114,328	1,249,493
Held-to-maturity debt securities, Gross unrealized losses, 12 months or more	7,736	23,861
Held-to-maturity debt securities, Fair value, Total	2,660,101	2,749,875
Held-to-maturity debt securities, Gross unrealized losses, Total	¥ 24,193	¥ 35,293
Held-to-maturity debt securities, Number of securities | Securities	506	601
Japanese National Government and Japanese Government Agency Bonds [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 3,144,915	¥ 4,149,302
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	11,051	976
Available-for-sale debt securities, Fair value, 12 months or more		5,599
Available-for-sale debt securities, Gross unrealized losses, 12 months or more		1
Available-for-sale debt securities, Fair value, Total	3,144,915	4,154,901
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 11,051	¥ 977
Available-for-sale debt securities, Number of securities | Securities	29	39
Japanese Prefectural and Municipal Bonds [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 140,429	¥ 12,772
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	251	5
Available-for-sale debt securities, Fair value, 12 months or more
Available-for-sale debt securities, Gross unrealized losses, 12 months or more
Available-for-sale debt securities, Fair value, Total	140,429	12,772
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 251	¥ 5
Available-for-sale debt securities, Number of securities | Securities	47	4
Foreign Government and Official Institution Bonds [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 271,032	¥ 397,718
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	152	1,125
Available-for-sale debt securities, Fair value, 12 months or more	488,282	1,160,671
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	3,442	24,429
Available-for-sale debt securities, Fair value, Total	759,314	1,558,389
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 3,594	¥ 25,554
Available-for-sale debt securities, Number of securities | Securities	95	179
Held-to-maturity debt securities, Fair value, Less than 12 months	¥ 33,013
Held-to-maturity debt securities, Gross unrealized losses, Less than 12 months	360
Held-to-maturity debt securities, Fair value, 12 months or more	26,901	55,084
Held-to-maturity debt securities, Gross unrealized losses, 12 months or more	17	212
Held-to-maturity debt securities, Fair value, Total	59,914	55,084
Held-to-maturity debt securities, Gross unrealized losses, Total	¥ 377	¥ 212
Held-to-maturity debt securities, Number of securities | Securities	12	10
Corporate Bonds [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 80,808	¥ 163,615
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	332	776
Available-for-sale debt securities, Fair value, 12 months or more	6,982	79,758
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	1	46
Available-for-sale debt securities, Fair value, Total	87,790	243,373
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 333	¥ 822
Available-for-sale debt securities, Number of securities | Securities	45	92
Residential Mortgage-backed Securities [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 127,244	¥ 316,942
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	631	1,757
Available-for-sale debt securities, Fair value, 12 months or more	440,122	648,353
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	4,934	19,581
Available-for-sale debt securities, Fair value, Total	567,366	965,295
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 5,565	¥ 21,338
Available-for-sale debt securities, Number of securities | Securities	423	536
Held-to-maturity debt securities, Fair value, Less than 12 months	¥ 103,117	¥ 74,180
Held-to-maturity debt securities, Gross unrealized losses, Less than 12 months	14	1,199
Held-to-maturity debt securities, Fair value, 12 months or more	625,441	798,165
Held-to-maturity debt securities, Gross unrealized losses, 12 months or more	3,372	20,003
Held-to-maturity debt securities, Fair value, Total	728,558	872,345
Held-to-maturity debt securities, Gross unrealized losses, Total	¥ 3,386	¥ 21,202
Held-to-maturity debt securities, Number of securities | Securities	394	457
Commercial Mortgage-backed Securities [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 3,411	¥ 42,126
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	3	678
Available-for-sale debt securities, Fair value, 12 months or more	3,523	57,167
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	10	1,673
Available-for-sale debt securities, Fair value, Total	6,934	99,293
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 13	¥ 2,351
Available-for-sale debt securities, Number of securities | Securities	10	104
Held-to-maturity debt securities, Fair value, Less than 12 months		¥ 3,154
Held-to-maturity debt securities, Gross unrealized losses, Less than 12 months		37
Held-to-maturity debt securities, Fair value, 12 months or more	138,479	155,011
Held-to-maturity debt securities, Gross unrealized losses, 12 months or more	792	1,995
Held-to-maturity debt securities, Fair value, Total	138,479	158,165
Held-to-maturity debt securities, Gross unrealized losses, Total	¥ 792	¥ 2,032
Held-to-maturity debt securities, Number of securities | Securities	30	32
Asset-backed Securities [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 118,876	¥ 164,738
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	750	2,553
Available-for-sale debt securities, Fair value, 12 months or more	28,296
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	294
Available-for-sale debt securities, Fair value, Total	147,172	164,738
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 1,044	¥ 2,553
Available-for-sale debt securities, Number of securities | Securities	80	87
Held-to-maturity debt securities, Fair value, Less than 12 months	¥ 1,409,643	¥ 1,423,048
Held-to-maturity debt securities, Gross unrealized losses, Less than 12 months	16,083	10,196
Held-to-maturity debt securities, Fair value, 12 months or more	323,507	241,233
Held-to-maturity debt securities, Gross unrealized losses, 12 months or more	3,555	1,651
Held-to-maturity debt securities, Fair value, Total	1,733,150	1,664,281
Held-to-maturity debt securities, Gross unrealized losses, Total	¥ 19,638	¥ 11,847
Held-to-maturity debt securities, Number of securities | Securities	70	102
Other Debt Securities [Member]
Investment Securities [Line Items]
Available-for-sale debt securities, Fair value, Less than 12 months	¥ 35,829	¥ 77,660
Available-for-sale debt securities, Gross unrealized losses, Less than 12 months	23	549
Available-for-sale debt securities, Fair value, 12 months or more	31,929	37,027
Available-for-sale debt securities, Gross unrealized losses, 12 months or more	1,851	2,369
Available-for-sale debt securities, Fair value, Total	67,758	114,687
Available-for-sale debt securities, Gross unrealized losses, Total	¥ 1,874	¥ 2,918
Available-for-sale debt securities, Number of securities | Securities	22	38

Investment Securities (Roll-for

Investment Securities (Roll-forward of Credit Loss Component Recognized in Earnings) (Detail) - Corporate Bonds [Member] - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Roll-forward of credit loss component recognized in earnings:
Balance at beginning of period	¥ 1,761	¥ 3,498
Additions: Initial credit impairments	661	34
Additions: Subsequent credit impairments		51
Reductions: Securities sold or matured	(296)	(233)
Balance at end of period	¥ 2,126	¥ 3,350

Investment Securities (Net Real

Investment Securities (Net Realized Gains (Losses) on Sales of Equity Securities and Net Unrealized Gains (Losses) on Equity Securities still held) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Net gains (losses) recognized during the period	[1]	¥ (36,019)	¥ 411,720
Less: Net gains (losses) recognized during the period on equity securities sold during the period		(9,960)	12,470
Net unrealized gains (losses) recognized during the reporting period still held at the reporting date		¥ (26,059)	¥ 399,250
[1]	Included in Investment securities gains—net.

Investment Securities (Carrying

Investment Securities (Carrying Value of Nonmarketable Equity Securities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2019	Mar. 31, 2019
Nonmarketable Equity Securities [Member] | Measurement Alternative [Member]
Investment Securities [Line Items]
Balance	¥ 700,634	¥ 563,733

Investment Securities (Related

Investment Securities (Related Adjustments for Nonmarketable Equity Securities) (Detail) - Nonmarketable Equity Securities [Member] - Measurement Alternative [Member] - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019
Investment Securities [Line Items]
Impairment losses	[1],[2]	¥ (1,402)	¥ (479)
Downward changes for observable prices	[1],[3],[4],[5]	(953)
Upward changes for observable prices	[1],[3],[5],[6]	162	¥ 8,492
Cumulative impairment losses		3,325		¥ 2,292
Cumulative downward changes for observable prices		953
Cumulative upward changes for observable prices		¥ 28,405		¥ 53,077
[1]	Included in Investment securities gains—net.
[2]	The cumulative impairment losses at March 31, 2019 and September 30, 2019 were ¥2,292 million and ¥3,325 million, respectively.
[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 downward changes for observable prices at March 31, 2019 and September 30, 2019 were nil and ¥953 million, respectively.
[5]	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.
[6]	The cumulative upward changes for observable prices at March 31, 2019 and September 30, 2019 were ¥53,077 million and ¥28,405 million, respectively.

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses (Narrative) (Detail) - JPY (¥) ¥ in Billions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Significant sales of loans	¥ 816	¥ 590
Commercial [Member] | Minimum [Member]
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 [Member] | Maximum [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Temporary extensions of maturity dates to nonaccrual loans, in day	90 days
Residential [Member] | Minimum [Member]
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 [Member] | Maximum [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Temporary extensions of maturity dates to nonaccrual loans, in day	90 days
Card [Member] | Minimum [Member]
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 [Member] | Minimum [Member]
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 [Member] | Minimum [Member]
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

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses (Loans by Domicile and Industry of Borrower Segment Classification) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Unearned income, unamortized premiums-net and deferred loan fees-net		¥ (318,880)	¥ (304,588)
Total Loans, net	[1]	115,263,410	116,883,941
Loans held for sale		393,781	291,794
Domestic [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		64,101,558	65,156,790
Domestic [Member] | Manufacturing [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		11,135,322	11,153,996
Domestic [Member] | Construction [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		700,550	717,664
Domestic [Member] | Real Estate [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		11,566,390	11,706,419
Domestic [Member] | Services [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		2,632,130	2,653,191
Domestic [Member] | Wholesale and Retail [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		7,335,637	7,643,397
Domestic [Member] | Banks and Other Financial Institutions [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans	[2]	5,086,664	5,213,020
Domestic [Member] | Communication and Information Services [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		1,526,814	1,510,596
Domestic [Member] | Other Industries [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		8,576,044	8,756,483
Domestic [Member] | Consumer [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		15,542,007	15,802,024
Foreign [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		51,480,732	52,031,739
Foreign [Member] | Governments and Official Institutions [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		763,483	841,695
Foreign [Member] | Banks and Other Financial Institutions [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans	[2]	11,068,930	11,641,373
Foreign [Member] | Commercial and Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		31,438,990	31,951,169
Foreign [Member] | Other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans		¥ 8,209,329	¥ 7,597,502
[1]	The above table includes loans held for sale of ¥291,794 million at March 31, 2019 and ¥393,781 million at September 30, 2019, respectively.
[2]	Loans to so-called “non-bank finance companies” are generally included in the “Banks and other financial institutions” category. Non-bank finance companies are primarily engaged in consumer lending, factoring and credit card businesses.

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses (Nonaccrual Status of Loans by Class) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	[1]	¥ 727,314	¥ 687,670
Loans held for sale placed on nonaccrual status		11,759	12,702
Loans acquired with deteriorated credit quality placed on nonaccrual status		12,462	6,284
Commercial [Member] | Domestic [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		291,435	272,777
Commercial [Member] | Domestic [Member] | Manufacturing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		68,232	65,896
Commercial [Member] | Domestic [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		8,944	9,813
Commercial [Member] | Domestic [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		20,966	23,152
Commercial [Member] | Domestic [Member] | Services [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		49,172	26,188
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		96,017	94,531
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		860	898
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		11,449	11,955
Commercial [Member] | Domestic [Member] | Other Industries [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		22,572	25,406
Commercial [Member] | Domestic [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		13,223	14,938
Commercial [Member] | Foreign [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		101,241	111,002
Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		65,819	68,499
Card [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		62,246	61,419
MUAH [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		55,635	46,549
Krungsri [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		130,831	127,424
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans		¥ 20,107
[1]	The above table does not include loans held for sale of ¥12,702 million and ¥11,759 million at March 31, 2019 and September 30, 2019, respectively, and loans acquired with deteriorated credit quality of ¥6,284 million and ¥12,462 million, at March 31, 2019 and September 30, 2019, respectively.

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses (Impaired Loans by Class) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019		Mar. 31, 2019	Sep. 30, 2018	[4]	Mar. 31, 2018
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses	[1]	¥ 997,129		¥ 961,616
Recorded loan balance, Not requiring an allowance for credit losses	[1],[2]	253,087		248,175
Recorded loan balance, Total	[1],[3]	1,250,216		1,209,791
Unpaid principal balance	[1]	1,368,769		1,323,951
Related allowance for credit losses	[1]	406,589		391,154
Accrual TDRs included in impaired loans		629,544	[4]	617,651	¥ 653,772		¥ 670,255
Impaired loans held for sales		14,554		12,702
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Accrual TDRs included in impaired loans		495,371		497,013
Commercial [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		7,103		8,136
Recorded loan balance, Not requiring an allowance for credit losses	[2]
Recorded loan balance, Total	[3]	7,103		8,136
Unpaid principal balance		14,367		14,990
Related allowance for credit losses		5,086		5,450
Commercial [Member] | Domestic [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		564,458		560,474
Recorded loan balance, Not requiring an allowance for credit losses	[2]	152,097		157,465
Recorded loan balance, Total	[3]	716,555		717,939
Unpaid principal balance		755,988		759,399
Related allowance for credit losses		235,107		227,004
Commercial [Member] | Domestic [Member] | Manufacturing [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		346,580		349,597
Recorded loan balance, Not requiring an allowance for credit losses	[2]	30,272		28,189
Recorded loan balance, Total	[3]	376,852		377,786
Unpaid principal balance		383,364		384,306
Related allowance for credit losses		90,210		92,919
Commercial [Member] | Domestic [Member] | Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		7,566		8,366
Recorded loan balance, Not requiring an allowance for credit losses	[2]	5,498		5,975
Recorded loan balance, Total	[3]	13,064		14,341
Unpaid principal balance		13,282		14,779
Related allowance for credit losses		5,790		6,574
Commercial [Member] | Domestic [Member] | Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		17,133		20,848
Recorded loan balance, Not requiring an allowance for credit losses	[2]	28,563		29,961
Recorded loan balance, Total	[3]	45,696		50,809
Unpaid principal balance		50,856		55,943
Related allowance for credit losses		4,856		5,704
Commercial [Member] | Domestic [Member] | Services [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		49,565		30,239
Recorded loan balance, Not requiring an allowance for credit losses	[2]	14,824		13,020
Recorded loan balance, Total	[3]	64,389		43,259
Unpaid principal balance		68,261		46,838
Related allowance for credit losses		35,299		20,059
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		117,234		118,253
Recorded loan balance, Not requiring an allowance for credit losses	[2]	39,960		45,620
Recorded loan balance, Total	[3]	157,194		163,873
Unpaid principal balance		167,279		175,714
Related allowance for credit losses		83,897		84,503
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		937		1,012
Recorded loan balance, Not requiring an allowance for credit losses	[2]	42		21
Recorded loan balance, Total	[3]	979		1,033
Unpaid principal balance		979		1,033
Related allowance for credit losses		773		830
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		8,471		8,794
Recorded loan balance, Not requiring an allowance for credit losses	[2]	6,439		6,929
Recorded loan balance, Total	[3]	14,910		15,723
Unpaid principal balance		16,147		16,587
Related allowance for credit losses		6,640		6,817
Commercial [Member] | Domestic [Member] | Other Industries [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		8,625		13,772
Recorded loan balance, Not requiring an allowance for credit losses	[2]	18,644		17,989
Recorded loan balance, Total	[3]	27,269		31,761
Unpaid principal balance		33,708		38,342
Related allowance for credit losses		5,243		6,874
Commercial [Member] | Domestic [Member] | Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		8,347		9,593
Recorded loan balance, Not requiring an allowance for credit losses	[2]	7,855		9,761
Recorded loan balance, Total	[3]	16,202		19,354
Unpaid principal balance		22,112		25,857
Related allowance for credit losses		2,399		2,724
Commercial [Member] | Foreign [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses		134,365		127,521
Recorded loan balance, Not requiring an allowance for credit losses	[2]	36,966		34,484
Recorded loan balance, Total	[3]	171,331		162,005
Unpaid principal balance		191,514		183,133
Related allowance for credit losses		92,694		85,966
Residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses	[5]	91,551		97,176
Recorded loan balance, Not requiring an allowance for credit losses	[2],[5]	6,595		6,495
Recorded loan balance, Total	[3],[5]	98,146		103,671
Unpaid principal balance	[5]	114,610		120,526
Related allowance for credit losses	[5]	13,766		14,357
Accrual TDRs included in impaired loans		31,715		34,449
Card [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses	[5]	64,906		64,691
Recorded loan balance, Not requiring an allowance for credit losses	[2],[5]	337		330
Recorded loan balance, Total	[3],[5]	65,243		65,021
Unpaid principal balance	[5]	72,511		72,226
Related allowance for credit losses	[5]	19,830		21,829
Accrual TDRs included in impaired loans		25,606		26,183
MUAH [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses	[5]	52,873		46,552
Recorded loan balance, Not requiring an allowance for credit losses	[2],[5]	30,611		23,208
Recorded loan balance, Total	[3],[5]	83,484		69,760
Unpaid principal balance	[5]	103,903		83,300
Related allowance for credit losses	[5]	9,018		8,294
Accrual TDRs included in impaired loans		38,127		33,155
Krungsri [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses	[5]	65,819		57,066
Recorded loan balance, Not requiring an allowance for credit losses	[2],[5]	26,481		26,193
Recorded loan balance, Total	[3],[5]	92,300		83,259
Unpaid principal balance	[5]	99,254		90,377
Related allowance for credit losses	[5]	29,878		28,254
Accrual TDRs included in impaired loans		34,213		26,851
Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded loan balance, Requiring an allowance for credit losses	[5]	16,054
Recorded loan balance, Not requiring an allowance for credit losses	[2],[5]
Recorded loan balance, Total	[3],[5]	16,054
Unpaid principal balance	[5]	16,622
Related allowance for credit losses	[5]	1,210
Accrual TDRs included in impaired loans		¥ 4,512
[1]	In addition to impaired loans presented in the above table, there were impaired loans held for sale of ¥12,702 million and ¥14,554 million at March 31, 2019 and September 30, 2019, 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, loans’ observable market price, or the fair value of the collateral if the loan is a collateral-dependent loan.
[3]	Included in impaired loans at March 31, 2019 and September 30, 2019 are accrual TDRs as follows: ¥497,013 million and ¥495,371 million—Commercial; ¥34,449 million and ¥31,715 million—Residential; ¥26,183 million and ¥25,606 million—Card; ¥33,155 million and ¥38,127 million—MUFG Americas Holdings; ¥26,851 million and ¥34,213 million—Krungsri; and nil and ¥4,512 million—Other, respectively.
[4]	For the six months ended September 30, 2018, lease receivables of ¥538 million and ¥50 million in the Krungsri segment, which were accrual TDRs and nonaccrual TDRs, respectively, are excluded from the additions of accrual TDRs and other impaired loans, respectively, and the related ending balances of such TDRs amounting to ¥3,642 million and ¥1,135 million, are also excluded from the balance of accrual TDRs and other impaired loans, respectively, as of September 30, 2018. For the six months ended September 30, 2019, lease receivables of ¥918 million and ¥228 million in the Krungsri segment, and ¥69 million and nil in the Other segment, which were accrual TDRs and nonaccrual TDRs, respectively, are excluded from the additions of accrual TDRs and other impaired loans, respectively, and the related ending balances of such TDRs amounting to ¥5,037 million and ¥3,529 million in the Krungsri segment, and ¥68 million and nil in the Other segment are also excluded from the balance of accrual TDRs and other impaired loans, respectively, as of September 30, 2019.
[5]	Impaired Loans for Residential, Card, MUAH, Krungsri and Other segments in the above table include loans acquired with deteriorated credit quality.

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses (Average Recorded Loan Balance and Recognized Interest Income on Impaired Loans by Class) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	¥ 1,231,215	¥ 1,283,207
Recognized interest income	11,893	12,946
Commercial [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	7,636	7,648
Recognized interest income	113	194
Commercial [Member] | Domestic [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	717,249	796,431
Recognized interest income	5,151	5,846
Commercial [Member] | Domestic [Member] | Manufacturing [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	377,319	392,695
Recognized interest income	2,558	2,787
Commercial [Member] | Domestic [Member] | Construction [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	13,704	16,393
Recognized interest income	116	162
Commercial [Member] | Domestic [Member] | Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	48,253	61,434
Recognized interest income	452	544
Commercial [Member] | Domestic [Member] | Services [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	53,824	51,767
Recognized interest income	390	420
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	160,534	175,516
Recognized interest income	1,248	1,385
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	1,007	1,474
Recognized interest income	3	4
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	15,317	25,854
Recognized interest income	159	246
Commercial [Member] | Domestic [Member] | Other Industries [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	29,515	48,080
Recognized interest income	93	91
Commercial [Member] | Domestic [Member] | Consumer [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	17,776	23,218
Recognized interest income	132	207
Commercial [Member] | Foreign [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	163,110	153,708
Recognized interest income	1,359	1,598
Residential [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	100,910	108,914
Recognized interest income	700	856
Card [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	65,132	66,762
Recognized interest income	651	857
MUAH [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	84,488	66,505
Recognized interest income	1,025	955
Krungsri [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	88,624	83,239
Recognized interest income	2,828	2,640
Other [Member]
Financing Receivable, Impaired [Line Items]
Average recorded loan balance	4,066
Recognized interest income	¥ 66

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses (Roll-forward of Accrual TDRs and Other Impaired Loans) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Accrual TDRs:
Balance at beginning of period		¥ 617,651	¥ 670,255
Additions (new accrual TDR status)	[1]	83,196	40,021
Transfers to other impaired loans (including nonaccrual TDRs)		(16,694)	(9,623)
Loans sold			(26)
Principal payments and other		(54,609)	(46,855)
Balance at end of period	[1]	629,544	653,772
Other impaired loans (including nonaccrual TDRs):
Balance at beginning of period		592,140	660,868
Additions (new other impaired loans (including nonaccrual TDRs) status)	[1],[2]	192,692	97,596
Charge-off		(20,679)	(28,410)
Transfers to accrual TDRs		(31,522)	(14,548)
Loans sold		(14,113)	(2,496)
Principal payments and other		(97,846)	(112,026)
Balance at end of period	[1]	620,672	600,984
Card [Member]
Accrual TDRs:
Balance at beginning of period		26,183
Balance at end of period		25,606
Other impaired loans (including nonaccrual TDRs):
Additions of nonaccrual TDRs		7,741	6,870
MUAH [Member]
Accrual TDRs:
Balance at beginning of period		33,155
Balance at end of period		38,127
Other impaired loans (including nonaccrual TDRs):
Additions of nonaccrual TDRs		7,904	9,809
Krungsri [Member]
Accrual TDRs:
Balance at beginning of period		26,851
Balance at end of period		34,213
Lease receivables reported as accrual TDRs but excluded from "Additions" as impaired loans		918	538
Lease receivables excluded from accrual TDRs as impaired loans		5,037	3,642
Other impaired loans (including nonaccrual TDRs):
Lease receivables reported as nonaccrual TDRs but excluded from "Additions" as impaired loans		228	50
Lease receivables excluded from other impaired loans		3,529	1,135
Additions of nonaccrual TDRs		4,478	6,499
Other [Member]
Accrual TDRs:
Balance at beginning of period
Balance at end of period		4,512
Lease receivables reported as accrual TDRs but excluded from "Additions" as impaired loans		69
Lease receivables excluded from accrual TDRs as impaired loans		68
Other impaired loans (including nonaccrual TDRs):
Lease receivables reported as nonaccrual TDRs but excluded from "Additions" as impaired loans
Lease receivables excluded from other impaired loans
Additions of nonaccrual TDRs		¥ 478
[1]	For the six months ended September 30, 2018, lease receivables of ¥538 million and ¥50 million in the Krungsri segment, which were accrual TDRs and nonaccrual TDRs, respectively, are excluded from the additions of accrual TDRs and other impaired loans, respectively, and the related ending balances of such TDRs amounting to ¥3,642 million and ¥1,135 million, are also excluded from the balance of accrual TDRs and other impaired loans, respectively, as of September 30, 2018. For the six months ended September 30, 2019, lease receivables of ¥918 million and ¥228 million in the Krungsri segment, and ¥69 million and nil in the Other segment, which were accrual TDRs and nonaccrual TDRs, respectively, are excluded from the additions of accrual TDRs and other impaired loans, respectively, and the related ending balances of such TDRs amounting to ¥5,037 million and ¥3,529 million in the Krungsri segment, and ¥68 million and nil in the Other segment are also excluded from the balance of accrual TDRs and other impaired loans, respectively, as of September 30, 2019.
[2]	Included in the additions of other impaired loans for the six months ended September 30, 2018 and 2019 are nonaccrual TDRs as follows: ¥6,870 million and ¥7,741 million—Card; ¥9,809 million and ¥7,904 million—MUFG Americas Holdings; ¥6,499 million and ¥4,478 million—Krungsri; and nil and ¥478 million—Other, respectively.

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses (Troubled Debt Restructurings by Class) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment		¥ 105,689	¥ 64,216
Troubled debt restructurings, Post-modification outstanding recorded investment		105,012	63,787
Troubled debt restructurings that subsequently defaulted, Recorded Investment		16,581	7,280
Commercial [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]
Commercial [Member] | Domestic [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	20,607	20,440
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	20,607	20,440
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]	6,342	1,643
Commercial [Member] | Domestic [Member] | Manufacturing [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	9,120	4,594
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	9,120	4,594
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]	2,544	74
Commercial [Member] | Domestic [Member] | Construction [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	42	43
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	42	43
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]
Commercial [Member] | Domestic [Member] | Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	254	561
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	254	561
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]
Commercial [Member] | Domestic [Member] | Services [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	2,422	1,505
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	2,422	1,505
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]	2	436
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	7,779	12,240
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	7,779	12,240
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]	3,708	615
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	240	156
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	240	156
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]		518
Commercial [Member] | Domestic [Member] | Other Industries [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	615	312
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	615	312
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]
Commercial [Member] | Domestic [Member] | Consumer [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	135	1,029
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	135	1,029
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]	88
Commercial [Member] | Foreign [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	29,360	5,649
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	29,360	5,649
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]
Residential [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[2]	3,215	4,235
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[2]	3,215	4,235
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[2]	27	83
Card [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[3]	11,900	10,382
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[3]	11,362	9,953
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[3]	1,825	1,810
MUAH [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[3]	18,766	11,621
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[3]	18,656	11,621
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[3]	4,572	199
Krungsri [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[1],[3]	16,724	11,889
Troubled debt restructurings, Post-modification outstanding recorded investment	[1],[3]	16,695	11,889
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[1],[3]	3,815	3,545
Other [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, Pre-modification outstanding recorded investment	[3]	5,117
Troubled debt restructurings, Post-modification outstanding recorded investment	[3]	5,117
Troubled debt restructurings that subsequently defaulted, Recorded Investment	[3]
[1]	For the six months ended September 30, 2018, 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 segment. For the six months ended September 30, 2019, extension of the stated maturity date of loans was the primary concession type in the Commercial and Residential segments, reduction in the stated rate was the primary concession type in the Card segment, and some combination thereof were the primary concession type in the MUFG Americas Holdings and Krungsri segments.
[2]	TDRs for the Commercial and Residential segments include accruing loans, and do not include nonaccrual loans.
[3]	TDRs for the Card, MUFG Americas Holdings, Krungsri and Other segments include accrual and nonaccrual loans.

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses (Outstanding Recorded Investment Balances of Troubled Debt Restructurings by Class) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances		¥ 727,777	¥ 707,591
Commercial [Member] | Domestic [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	425,231	445,312
Commercial [Member] | Domestic [Member] | Manufacturing [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	308,620	311,890
Commercial [Member] | Domestic [Member] | Construction [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	4,176	4,591
Commercial [Member] | Domestic [Member] | Real Estate [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	24,730	27,657
Commercial [Member] | Domestic [Member] | Services [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	15,257	17,135
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	61,182	69,350
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	120	135
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	3,468	3,780
Commercial [Member] | Domestic [Member] | Other Industries [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	4,699	6,357
Commercial [Member] | Domestic [Member] | Consumer [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	2,979	4,417
Commercial [Member] | Foreign [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	70,140	51,701
Residential [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[1]	31,715	34,449
Card [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[2]	65,243	65,021
MUAH [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[2]	58,063	48,128
Krungsri [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[2]	72,333	62,980
Other [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances	[2]	5,052
Nonaccrual [Member] | Card [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances		39,637	38,838
Nonaccrual [Member] | MUAH [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances		19,936	14,973
Nonaccrual [Member] | Krungsri [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances		33,083	31,069
Nonaccrual [Member] | Other [Member]
Financing Receivable, Modifications [Line Items]
TDRs, Outstanding recorded investment balances		¥ 472
[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. Included in the outstanding recorded investment balances as of March 31, 2019 and September 30, 2019 are nonaccrual TDRs as follows: ¥38,838 million and ¥39,637 million—Card; ¥14,973 million and ¥19,936 million—MUFG Americas Holdings; ¥31,069 million and ¥33,083 million—Krungsri; and nil and ¥472 million—Other, respectively.

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses (Credit Quality Indicators of Loans by Class) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	¥ 83,978,846	¥ 86,971,280
Commercial [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		81,987,619	84,821,880
Commercial [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		1,679,260	1,815,762
Commercial [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		311,967	333,638
Commercial [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	23,492	26,245
Commercial [Member] | Loans Acquired with Deteriorated Credit Quality [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		10,708	11,622
Commercial [Member] | Loans Acquired with Deteriorated Credit Quality [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		9,958	10,833
Commercial [Member] | Loans Acquired with Deteriorated Credit Quality [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		2,826	3,790
Commercial [Member] | Domestic [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	49,954,559	50,851,811
Commercial [Member] | Domestic [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		48,621,489	49,391,991
Commercial [Member] | Domestic [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		1,121,861	1,242,075
Commercial [Member] | Domestic [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		211,209	217,745
Commercial [Member] | Domestic [Member] | Manufacturing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	11,094,752	11,147,363
Commercial [Member] | Domestic [Member] | Manufacturing [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		10,772,765	10,819,594
Commercial [Member] | Domestic [Member] | Manufacturing [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		277,025	279,801
Commercial [Member] | Domestic [Member] | Manufacturing [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		44,962	47,968
Commercial [Member] | Domestic [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	700,174	717,245
Commercial [Member] | Domestic [Member] | Construction [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		659,171	672,152
Commercial [Member] | Domestic [Member] | Construction [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		33,812	37,236
Commercial [Member] | Domestic [Member] | Construction [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		7,191	7,857
Commercial [Member] | Domestic [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	11,513,556	11,648,919
Commercial [Member] | Domestic [Member] | Real Estate [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		11,308,023	11,403,613
Commercial [Member] | Domestic [Member] | Real Estate [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		184,868	222,791
Commercial [Member] | Domestic [Member] | Real Estate [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		20,665	22,515
Commercial [Member] | Domestic [Member] | Services [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	2,613,973	2,631,226
Commercial [Member] | Domestic [Member] | Services [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		2,437,279	2,436,489
Commercial [Member] | Domestic [Member] | Services [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		155,459	174,784
Commercial [Member] | Domestic [Member] | Services [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		21,235	19,953
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	7,318,543	7,638,786
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		6,957,169	7,240,801
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		289,119	329,249
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		72,255	68,736
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	5,062,189	5,208,441
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		5,053,997	5,199,889
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		7,332	7,654
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		860	898
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	1,526,591	1,510,366
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		1,484,370	1,465,652
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		32,607	34,542
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		9,614	10,172
Commercial [Member] | Domestic [Member] | Other Industries [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	8,573,285	8,754,992
Commercial [Member] | Domestic [Member] | Other Industries [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		8,442,000	8,610,464
Commercial [Member] | Domestic [Member] | Other Industries [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		109,763	119,581
Commercial [Member] | Domestic [Member] | Other Industries [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		21,522	24,947
Commercial [Member] | Domestic [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	1,551,496	1,594,473
Commercial [Member] | Domestic [Member] | Consumer [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		1,506,715	1,543,337
Commercial [Member] | Domestic [Member] | Consumer [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		31,876	36,437
Commercial [Member] | Domestic [Member] | Consumer [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		12,905	14,699
Commercial [Member] | Foreign [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	34,000,795	36,093,224
Commercial [Member] | Foreign [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		33,355,422	35,418,267
Commercial [Member] | Foreign [Member] | Close Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		547,441	562,854
Commercial [Member] | Foreign [Member] | Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		97,932	112,103
Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	13,515,068	13,728,084
Residential [Member] | Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		13,451,371	13,661,794
Residential [Member] | Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		63,697	66,290
Card [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	568,528	578,582
Card [Member] | Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		506,130	516,983
Card [Member] | Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		62,398	61,599
MUAH [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1],[2]	9,522,687	9,607,563
FDIC covered loans acquired with deteriorated credit quality and small business loans which are not individually rated		579	689
MUAH [Member] | Credit Quality Based on the Number of Delinquencies [Member] | Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		4,738,147	4,752,021
MUAH [Member] | Credit Quality Based on the Number of Delinquencies [Member] | Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		14,983	15,540
MUAH [Member] | Credit Quality Based on Internal Credit Ratings [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		4,586,635	4,699,698
MUAH [Member] | Credit Quality Based on Internal Credit Ratings [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		82,567	51,948
MUAH [Member] | Credit Quality Based on Internal Credit Ratings [Member] | Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		100,355	88,356
Krungsri [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	6,496,556	6,010,537
Krungsri [Member] | Normal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		6,156,695	5,682,245
Krungsri [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		207,183	199,070
Krungsri [Member] | Substandard or Doubtful or Doubtful of Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		132,678	¥ 129,222
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade	[1]	1,106,245
Other [Member] | Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		1,078,936
Other [Member] | Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans classified by borrowing grade		¥ 27,309
[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.
[2]	Total loans of MUFG Americas Holdings do not include Federal Deposit Insurance Corporation (“FDIC”) covered loans which are not individually rated totaling ¥689 million and ¥579 million at March 31, 2019 and September 30, 2019, respectively. The MUFG Group will be reimbursed for a substantial portion of any future losses on FDIC covered loans under the terms of the FDIC loss share agreements.

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses (Ages of Past Due Loans by Class) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		¥ 533,346	¥ 472,758
Loans, current		114,592,615	116,369,874
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	115,125,961	116,842,632
Loans, greater than 90 days past due and accruing		13,291	16,007
1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		285,593	257,330
Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		247,753	215,428
Commercial [Member] | Domestic [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		45,559	42,199
Loans, current		49,909,000	50,809,612
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	49,954,559	50,851,811
Loans, greater than 90 days past due and accruing		5,800	6,900
Commercial [Member] | Domestic [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		10,355	11,551
Commercial [Member] | Domestic [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		35,204	30,648
Commercial [Member] | Domestic [Member] | Manufacturing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		3,111	4,633
Loans, current		11,091,641	11,142,730
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	11,094,752	11,147,363
Loans, greater than 90 days past due and accruing		2
Commercial [Member] | Domestic [Member] | Manufacturing [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		1,367	1,597
Commercial [Member] | Domestic [Member] | Manufacturing [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		1,744	3,036
Commercial [Member] | Domestic [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		123	278
Loans, current		700,051	716,967
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	700,174	717,245
Loans, greater than 90 days past due and accruing			1
Commercial [Member] | Domestic [Member] | Construction [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		26	218
Commercial [Member] | Domestic [Member] | Construction [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		97	60
Commercial [Member] | Domestic [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		5,139	6,290
Loans, current		11,508,417	11,642,629
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	11,513,556	11,648,919
Loans, greater than 90 days past due and accruing		1,736	2,524
Commercial [Member] | Domestic [Member] | Real Estate [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		1,311	2,034
Commercial [Member] | Domestic [Member] | Real Estate [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		3,828	4,256
Commercial [Member] | Domestic [Member] | Services [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		2,473	1,347
Loans, current		2,611,500	2,629,879
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	2,613,973	2,631,226
Loans, greater than 90 days past due and accruing		31	1
Commercial [Member] | Domestic [Member] | Services [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		1,317	778
Commercial [Member] | Domestic [Member] | Services [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		1,156	569
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		10,370	5,181
Loans, current		7,308,173	7,633,605
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	7,318,543	7,638,786
Loans, greater than 90 days past due and accruing			62
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		2,730	2,791
Commercial [Member] | Domestic [Member] | Wholesale and Retail [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		7,640	2,390
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		21	21
Loans, current		5,062,168	5,208,420
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	5,062,189	5,208,441
Loans, greater than 90 days past due and accruing
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due
Commercial [Member] | Domestic [Member] | Banks and Other Financial Institutions [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		21	21
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		1,063	1,169
Loans, current		1,525,528	1,509,197
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	1,526,591	1,510,366
Loans, greater than 90 days past due and accruing		7
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		199	411
Commercial [Member] | Domestic [Member] | Communication and Information Services [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		864	758
Commercial [Member] | Domestic [Member] | Other Industries [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		14,284	13,402
Loans, current		8,559,001	8,741,590
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	8,573,285	8,754,992
Loans, greater than 90 days past due and accruing
Commercial [Member] | Domestic [Member] | Other Industries [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		79	365
Commercial [Member] | Domestic [Member] | Other Industries [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		14,205	13,037
Commercial [Member] | Domestic [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		8,975	9,878
Loans, current		1,542,521	1,584,595
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	1,551,496	1,594,473
Loans, greater than 90 days past due and accruing		4,024	4,312
Commercial [Member] | Domestic [Member] | Consumer [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		3,326	3,357
Commercial [Member] | Domestic [Member] | Consumer [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		5,649	6,521
Commercial [Member] | Foreign [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		33,669	30,874
Loans, current		33,967,126	36,062,350
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	34,000,795	36,093,224
Loans, greater than 90 days past due and accruing		21	236
Commercial [Member] | Foreign [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		16,252	10,881
Commercial [Member] | Foreign [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		17,417	19,993
Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		72,662	79,301
Loans, current		13,435,300	13,641,449
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	13,507,962	13,720,750
Loans, greater than 90 days past due and accruing		6,096	6,584
Residential [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		56,580	62,686
Residential [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		16,082	16,615
Card [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		46,939	47,771
Loans, current		518,427	527,421
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	565,366	575,192
Loans, greater than 90 days past due and accruing
Card [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		16,599	17,203
Card [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		30,340	30,568
MUAH [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		56,294	39,523
Loans, current		9,458,170	9,557,501
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	9,514,464	9,597,024
Loans, greater than 90 days past due and accruing		1,374	2,287
MUAH [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		36,588	28,696
MUAH [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		19,706	10,827
Krungsri [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		241,518	233,090
Loans, current		6,249,090	5,771,541
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	6,490,608	6,004,631
Loans, greater than 90 days past due and accruing
Krungsri [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		131,259	126,313
Krungsri [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		110,259	¥ 106,777
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		36,705
Loans, current		1,055,502
Loans, excluding loans held for sale and loans acquired with deteriorated credit quality	[1]	1,092,207
Loans, greater than 90 days past due and accruing
Other [Member] | 1 to 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		17,960
Other [Member] | Greater than 3 Months Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, past due		¥ 18,745
[1]	Total loans in the above table do not include loans held for sale and loans acquired with deteriorated credit quality and represent balances without adjustments in relation to unearned income, unamortized premiums and deferred loan fees.

Loans and Allowance for Cred_13

Loans and Allowance for Credit Losses (Changes in Allowance for Credit Losses by Portfolio Segment) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period		¥ 658,184	¥ 764,124
Provision for (reversal of) credit losses		102,121	(71,060)
Charge-offs		102,570	74,603
Recoveries		33,014	19,099
Net charge-offs		69,556	55,504
Others	[1]	(76)	(2,951)
Balance at end of period		690,673	634,609
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period		389,615	491,098
Provision for (reversal of) credit losses		28,388	(104,297)
Charge-offs		29,033	22,432
Recoveries		15,612	6,616
Net charge-offs		13,421	15,816
Others	[1]	(3,410)	3,368
Balance at end of period		401,172	374,353
Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period		38,626	42,546
Provision for (reversal of) credit losses		130	(1,651)
Charge-offs		2,093	1,648
Recoveries		355	416
Net charge-offs		1,738	1,232
Others	[1]
Balance at end of period		37,018	39,663
Card [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period		32,550	32,119
Provision for (reversal of) credit losses		14,456	12,400
Charge-offs		12,715	12,401
Recoveries		721	500
Net charge-offs		11,994	11,901
Others	[1]
Balance at end of period		35,012	32,618
MUAH [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period		52,581	53,765
Provision for (reversal of) credit losses		17,950	1,423
Charge-offs		16,266	7,909
Recoveries		2,791	1,448
Net charge-offs		13,475	6,461
Others	[1]	(1,613)	(1,274)
Balance at end of period		55,443	47,453
Krungsri [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period		144,812	144,596
Provision for (reversal of) credit losses		24,902	21,065
Charge-offs		36,240	30,213
Recoveries		11,115	10,119
Net charge-offs		25,125	20,094
Others	[1]	3,568	(5,045)
Balance at end of period		148,157	¥ 140,522
Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period
Provision for (reversal of) credit losses		16,295
Charge-offs		6,223
Recoveries		2,420
Net charge-offs		3,803
Others	[1]	1,379
Balance at end of period		¥ 13,871
[1]	Others are principally comprised of gains or losses from foreign exchange translation.

Loans and Allowance for Cred_14

Loans and Allowance for Credit Losses (Allowance for Credit Losses and Recorded Investment in Loans by Portfolio Segment) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018
Allowance for credit losses:
Individually evaluated for impairment		¥ 400,586	¥ 385,522
Collectively evaluated for impairment		276,062	258,298
Loans acquired with deteriorated credit quality	[1]	14,025	14,364
Total		690,673	658,184	¥ 634,609	¥ 764,124
Loans:
Individually evaluated for impairment		1,235,109	1,200,663
Collectively evaluated for impairment		113,890,852	115,641,969
Loans acquired with deteriorated credit quality	[1]	62,548	54,103
Total	[2]	115,188,509	116,896,735
Commercial [Member]
Allowance for credit losses:
Individually evaluated for impairment		327,801	312,970
Collectively evaluated for impairment		61,397	63,366
Loans acquired with deteriorated credit quality	[1]	11,974	13,279
Total		401,172	389,615	374,353	491,098
Loans:
Individually evaluated for impairment		887,886	879,944
Collectively evaluated for impairment		83,067,468	86,065,091
Loans acquired with deteriorated credit quality	[1]	23,492	26,245
Total	[2]	83,978,846	86,971,280
Residential [Member]
Allowance for credit losses:
Individually evaluated for impairment		13,597	14,175
Collectively evaluated for impairment		22,159	23,413
Loans acquired with deteriorated credit quality	[1]	1,262	1,038
Total		37,018	38,626	39,663	42,546
Loans:
Individually evaluated for impairment		97,534	102,948
Collectively evaluated for impairment		13,410,428	13,617,802
Loans acquired with deteriorated credit quality	[1]	7,106	7,334
Total	[2]	13,515,068	13,728,084
Card [Member]
Allowance for credit losses:
Individually evaluated for impairment		19,830	21,829
Collectively evaluated for impairment		15,175	10,708
Loans acquired with deteriorated credit quality	[1]	7	13
Total		35,012	32,550	32,618	32,119
Loans:
Individually evaluated for impairment		65,004	64,752
Collectively evaluated for impairment		500,362	510,440
Loans acquired with deteriorated credit quality	[1]	3,162	3,390
Total	[2]	568,528	578,582
MUAH [Member]
Allowance for credit losses:
Individually evaluated for impairment		9,018	8,294
Collectively evaluated for impairment		46,420	44,282
Loans acquired with deteriorated credit quality	[1]	5	5
Total		55,443	52,581	47,453	53,765
Loans:
Individually evaluated for impairment		83,484	69,760
Collectively evaluated for impairment		9,430,980	9,527,264
Loans acquired with deteriorated credit quality	[1]	8,802	11,228
Total	[2]	9,523,266	9,608,252
Krungsri [Member]
Allowance for credit losses:
Individually evaluated for impairment		29,878	28,254
Collectively evaluated for impairment		118,251	116,529
Loans acquired with deteriorated credit quality	[1]	28	29
Total		148,157	144,812	¥ 140,522	¥ 144,596
Loans:
Individually evaluated for impairment		92,300	83,259
Collectively evaluated for impairment		6,398,308	5,921,372
Loans acquired with deteriorated credit quality	[1]	5,948	5,906
Total	[2]	6,496,556	6,010,537
Other [Member]
Allowance for credit losses:
Individually evaluated for impairment		462
Collectively evaluated for impairment		12,660
Loans acquired with deteriorated credit quality	[1]	749
Total		13,871
Loans:
Individually evaluated for impairment		8,901
Collectively evaluated for impairment		1,083,306
Loans acquired with deteriorated credit quality	[1]	14,038
Total	[2]	¥ 1,106,245
[1]	Loans acquired with deteriorated credit quality in the above table include impaired loans which are individually evaluated for impairment.
[2]	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.

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Narrative) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment losses on goodwill	¥ 241,356
Impairment losses on other intangible assets	¥ 2,334	¥ 667

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets (Movement in Carrying Amount of Goodwill) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, at beginning of period	[1]	¥ 626,009	¥ 633,452
Accumulated impairment losses, at beginning of period	[1]	(192,118)	(192,118)
Goodwill, Net at beginning of period		433,891	441,334
Goodwill acquired during the six months	[2]	446,643
Impairment loss		(241,356)
Foreign currency translation adjustments and other		(22,558)	(10,179)
Goodwill, at end of period		1,050,094	623,273
Accumulated impairment losses, at end of period		(433,474)	(192,118)
Goodwill, Net at end of period		616,620	¥ 431,155
Goodwill, Fully impaired before April 1, 2018		¥ 1,900,019
[1]	Goodwill originally recognized was ¥1,900,019 million, which has been fully impaired before April 1, 2018.
[2]	See Note 2 for the goodwill acquired in connection with acquisitions.

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets (Carrying Amount of Other Intangible Assets by Major Class) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019
Intangible assets subject to amortization:
Net carrying amount		¥ 1,169,295	¥ 901,503
Intangible assets not subject to amortization:
Net carrying amount, Other	[1]	32,106	25,693
Total intangible assets, Net carrying amount		1,201,401	927,196
Mortgage Servicing Rights [Member]
Intangible assets not subject to amortization:
Net carrying amount, Other		23,480	17,431
Software [Member]
Intangible assets subject to amortization:
Net carrying amount		715,487	673,638
Customer Relationships [Member]
Intangible assets subject to amortization:
Net carrying amount		306,089	141,410
Core Deposit Intangibles [Member]
Intangible assets subject to amortization:
Net carrying amount		78,129	38,153
Trade Names [Member]
Intangible assets subject to amortization:
Net carrying amount		57,556	42,921
Other [Member]
Intangible assets subject to amortization:
Net carrying amount		¥ 12,034	¥ 5,381
[1]	Intangible assets not subject to amortization includes mortgage servicing rights accounted for at fair value of ¥17,431 million and ¥23,480 million at March 31, 2019 and September 30, 2019, respectively.

Lease Transactions (Narrative)

Lease Transactions (Narrative) (Detail) ¥ in Millions	Sep. 30, 2019JPY (¥)
Leases [Abstract]
Right-of-use assets of finance lease	¥ 19,182
Right-of-use asset of finance lease, in condensed consolidated balance sheets line item	us-gaap:PropertyPlantAndEquipmentNet
Lease liabilities of finance leases	¥ 26,097
Lease liabilities of finance leases, in condensed consolidated balance sheets line item	us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities
Right-of-use assets of operating leases	¥ 406,567
Right-of-use asset of operating leases, in condensed consolidated balance sheets line item	us-gaap:OtherAssets
Lease liabilities of operating leases	¥ 482,474
Lease liabilities of operating leases, in condensed consolidated balance sheets line item	us-gaap:OtherLiabilities

Lease Transactions (Profit or L

Lease Transactions (Profit or Loss of Lease Transactions as a Lessee) (Detail) ¥ in Millions	6 Months Ended
	Sep. 30, 2019JPY (¥)
Finance lease cost:
Amortization of right-of-use assets	¥ 2,420
Interest on lease liabilities	150
Operating lease cost	¥ 46,783

Lease Transactions (Information

Lease Transactions (Information of Lease Transactions as a Lessee) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases	¥ 218
Operating cash flows from operating leases	54,517
Financing cash flows from finance leases	3,430
Right-of-use assets obtained in exchange for new finance lease liabilities	9,981	¥ 2,733
Right-of-use assets obtained in exchange for new operating lease liabilities	¥ 19,490
Weighted-average remaining lease term:
Finance leases	4 years 8 months 12 days
Operating leases	9 years 3 months 18 days
Weighted-average discount rate:
Finance leases	1.16%
Operating leases	1.29%

Lease Transactions (Maturities

Lease Transactions (Maturities of Lease Liabilities) (Detail) ¥ in Millions	Sep. 30, 2019JPY (¥)
Undiscounted total lease payments: Finance leases, maturities in
2020 (excluding these six months ended September 30, 2019)	¥ 4,084
2021	7,350
2022	6,074
2023	4,034
2024	2,528
2025 and thereafter	3,285
Total undiscounted cash flows	27,355
Difference between undiscounted and discounted cash flows: Finance leases	(1,258)
Amount on balance sheet: Finance leases	26,097
Undiscounted total lease payments: Operating leases, maturities in
2020 (excluding these six months ended September 30, 2019)	49,340
2021	93,869
2022	72,109
2023	52,910
2024	37,623
2025 and thereafter	210,928
Total undiscounted cash flows	516,779
Difference between undiscounted and discounted cash flows: Operating leases	(34,305)
Amount on balance sheet: Operating leases	¥ 482,474

Lease Transactions (Profit or_2

Lease Transactions (Profit or Loss of Lease Transactions as a Lessor) (Detail) ¥ in Millions	6 Months Ended
	Sep. 30, 2019JPY (¥)
Financing leases:
Finance income on net investment	¥ 59,058
Operating leases:
Lease income	1,917
Total	¥ 60,975

Lease Transactions (Component o

Lease Transactions (Component of Direct Financing Lease Transactions) (Detail) ¥ in Millions	Sep. 30, 2019JPY (¥)
Leases [Abstract]
Lease receivables (undiscounted)	¥ 2,057,016
Adjustments:
Discounted unguaranteed residual value	25,504
Initial direct cost on direct financing leases	26,756
Deferred selling profit	(331,036)
Net investment in direct financing leases	¥ 1,778,240

Lease Transactions (Maturity of

Lease Transactions (Maturity of the Lease Payment Receivables of Direct Financing Lease Transactions) (Detail) - Direct Financing Lease [Member] ¥ in Millions	Sep. 30, 2019JPY (¥)
Lease receivables: Direct financing lease, maturities in
2020 (excluding these six months ended September 30, 2019)	¥ 328,477
2021	490,312
2022	392,828
2023	307,340
2024	222,265
2025 and thereafter	315,794
Total undiscounted cash flows	2,057,016
Difference between undiscounted cash flows and the lease receivables recognized on balance sheet	(278,776)
Amount on balance sheet	¥ 1,778,240

Pledged Assets and Collateral (

Pledged Assets and Collateral (Narrative) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2019	Mar. 31, 2019
Financial Instruments Pledged as Collateral [Abstract]
Investment securities pledged for acting as a collection agent of public funds	¥ 21,932,410
Cash collateral pledged for derivative transactions included in Other assets	1,366,194	¥ 1,276,897
Cash collateral received for derivative transactions included in Other liabilities	¥ 963,909	¥ 844,234

Pledged Assets and Collateral_3

Pledged Assets and Collateral (Assets Mortgaged, Pledged, or Otherwise Subject to Lien) (Detail) ¥ in Millions	Sep. 30, 2019JPY (¥)
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 25,776,282
Trading Account Securities [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	7,397,338
Investment Securities [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	5,264,459
Loans [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	13,075,475
Other [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 39,010

Pledged Assets and Collateral_4

Pledged Assets and Collateral (Pledged Assets Classified by Type of Liabilities) (Detail) ¥ in Millions	Sep. 30, 2019JPY (¥)
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 25,776,282
Deposits [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	260,151
Call Money and Funds Purchased [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	6,314
Payables under Repurchase Agreements and Securities Lending Transactions [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	12,014,688
Other Short-term Borrowings and Long-term Debt [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	13,478,750
Other [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged assets	¥ 16,379

Severance Indemnities and Pen_3

Severance Indemnities and Pension Plans (Components of Net Periodic Cost of Pension Benefits and Other Benefits) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Domestic, Japan [Member] | Pension Benefits and SIPs [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the period	¥ 24,585	¥ 24,205
Interest cost on projected benefit obligation	5,545	6,764
Expected return on plan assets	(37,585)	(37,170)
Amortization of net actuarial loss	2,602	612
Amortization of prior service cost	(602)	(604)
Loss (gain) on settlements and curtailment	(2,347)	(3,901)
Net periodic benefit cost (income)	(7,802)	(10,094)
Foreign Offices and Subsidiaries [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the period	6,550	5,975
Interest cost on projected benefit obligation	8,667	7,407
Expected return on plan assets	(15,847)	(16,413)
Amortization of net actuarial loss	4,915	3,492
Amortization of prior service cost	(1,332)	(1,496)
Loss (gain) on settlements and curtailment	185
Net periodic benefit cost (income)	3,138	(1,035)
Foreign Offices and Subsidiaries [Member] | Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost—benefits earned during the period	175	271
Interest cost on projected benefit obligation	575	515
Expected return on plan assets	(949)	(1,139)
Amortization of net actuarial loss	556	349
Amortization of prior service cost	(948)	(995)
Net periodic benefit cost (income)	¥ (591)	¥ (999)

Severance Indemnities and Pen_4

Severance Indemnities and Pension Plans (Contributed to Plan Assets and Expected to Contribute for Remainder of Fiscal Year) (Detail) ¥ in Billions	6 Months Ended
	Sep. 30, 2019JPY (¥)
Domestic, Japan [Member] | Pension Benefits and SIPs [Member]
Defined Benefit Plan Disclosure [Line Items]
For the six months ended September 30, 2019	¥ 21.5
For the remainder of the fiscal year ending March 31, 2020	7.7
Foreign Offices and Subsidiaries [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
For the six months ended September 30, 2019	0.8
For the remainder of the fiscal year ending March 31, 2020	0.4
Foreign Offices and Subsidiaries [Member] | Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
For the six months ended September 30, 2019	0.2
For the remainder of the fiscal year ending March 31, 2020	¥ 0.2

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		Sep. 30, 2019	Mar. 31, 2019
Offsetting [Abstract]
Derivative assets, Gross amounts of recognized assets/liabilities		¥ 14,975,000	¥ 13,205,000
Derivative assets, Gross amounts offset in the condensed consolidated balance sheet
Derivative assets, Net amounts presented in the condensed consolidated balance sheet	[1],[2],[3]	14,975,000	13,205,000
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments		(11,956,000)	(10,752,000)
Derivative assets, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged		(726,000)	(590,000)
Derivative assets, Net amounts		2,293,000	1,863,000
Receivables under resale agreements, Gross amounts of recognized assets/liabilities		18,104,000	13,885,000
Receivables under resale agreements, Gross amounts offset in the condensed consolidated balance sheet		(1,857,000)	(2,910,000)
Receivables under resale agreements, Net amounts presented in the condensed consolidated balance sheet		16,247,000	10,975,000
Receivables under resale agreements, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments		(15,349,000)	(9,793,000)
Receivables under resale agreements, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged		(23,000)	(20,000)
Receivables under resale agreements, Net amounts		875,000	1,162,000
Receivables under securities borrowing transactions, Gross amounts of recognized assets/liabilities		2,874,000	2,759,000
Receivables under securities borrowing transactions, Gross amounts offset in the condensed consolidated balance sheet
Receivables under securities borrowing transactions, Net amounts presented in the condensed consolidated balance sheet		2,873,750	2,758,573
Receivables under securities borrowing transactions, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments		(2,802,000)	(2,693,000)
Receivables under securities borrowing transactions, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged
Receivables under securities borrowing transactions, Net amounts		72,000	66,000
Financial assets, Gross amounts of recognized assets/liabilities, Total		35,953,000	29,849,000
Financial assets, Gross amounts offset in the condensed consolidated balance sheet, Total		(1,857,000)	(2,910,000)
Financial assets, Net amounts presented in the condensed consolidated balance sheet, Total		34,096,000	26,939,000
Financial assets, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments, Total		(30,107,000)	(23,238,000)
Financial assets, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged, Total		(749,000)	(610,000)
Financial assets, Net amounts, Total		3,240,000	3,091,000
Derivative liabilities, Gross amounts of recognized assets/liabilities		14,182,000	12,710,000
Derivative liabilities, Gross amounts offset in the condensed consolidated balance sheet
Derivative liabilities, Net amounts presented in the condensed consolidated balance sheet	[1],[2],[3]	14,182,000	12,710,000
Derivative liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments		(11,999,000)	(10,671,000)
Derivative liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged		(1,003,000)	(933,000)
Derivative liabilities, Net amounts		1,180,000	1,106,000
Payables under repurchase agreements, Gross amounts of recognized assets/liabilities		28,468,000	28,125,000
Payables under repurchase agreements, Gross amounts offset in the condensed consolidated balance sheet		(1,852,000)	(2,900,000)
Payables under repurchase agreements, Net amounts presented in the condensed consolidated balance sheet		26,616,000	25,225,000
Payables under repurchase agreements, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments		(26,286,000)	(24,930,000)
Payables under repurchase agreements, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged		(13,000)	(15,000)
Payables under repurchase agreements, Net amounts		317,000	280,000
Payables under securities lending transactions, Gross amounts of recognized assets/liabilities		1,111,000	913,000
Payables under securities lending transactions, Gross amounts offset in the condensed consolidated balance sheet
Payables under securities lending transactions, Net amounts presented in the condensed consolidated balance sheet		1,111,362	913,087
Payables under securities lending transactions, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments		(1,075,000)	(880,000)
Payables under securities lending transactions, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged
Payables under securities lending transactions, Net amounts		36,000	33,000
Obligations to return securities received as collateral, Gross amounts of recognized assets/liabilities		3,391,000	3,087,000
Obligations to return securities received as collateral, Gross amounts offset in the condensed consolidated balance sheet
Obligations to return securities received as collateral, Net amounts presented in the condensed consolidated balance sheet		3,391,000	3,087,000
Obligations to return securities received as collateral, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments		(1,196,000)	(1,244,000)
Obligations to return securities received as collateral, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged
Obligations to return securities received as collateral, Net amounts		2,195,000	1,843,000
Financial liabilities, Gross amounts of recognized assets/liabilities, Total		47,152,000	44,835,000
Financial liabilities, Gross amounts offset in the condensed consolidated balance sheet, Total		(1,852,000)	(2,900,000)
Financial liabilities, Net amounts presented in the condensed consolidated balance sheet, Total		45,300,000	41,935,000
Financial liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Financial instruments, Total		(40,556,000)	(37,725,000)
Financial liabilities, Gross amounts not offset in the condensed consolidated balance sheet, Cash collateral received/pledged, Total		(1,016,000)	(948,000)
Financial liabilities, Net amounts, Total		¥ 3,728,000	¥ 3,262,000
[1]	For more information about fair value measurement and assumptions used to measure the fair value of derivatives, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.
[2]	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.
[3]	This table does not include contracts with embedded derivatives for which the fair value option has been elected.

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	Sep. 30, 2019	Mar. 31, 2019
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	¥ 28,468	¥ 28,125
Payables under securities lending transactions	1,111	913
Obligations to return securities received as collateral	3,391	3,087
Total	32,970	32,125
Overnight and Open [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	8,368	3,892
Payables under securities lending transactions	1,061	913
Obligations to return securities received as collateral	3,046	2,572
Total	12,475	7,377
30 Days or Less [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	12,467	18,586
Payables under securities lending transactions	50
Obligations to return securities received as collateral	210	396
Total	12,727	18,982
31-90 Days [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	4,557	2,824
Obligations to return securities received as collateral	134	117
Total	4,691	2,941
Over 90 Days [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	3,076	2,823
Obligations to return securities received as collateral	1	2
Total	¥ 3,077	¥ 2,825

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	Sep. 30, 2019	Mar. 31, 2019
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	¥ 28,468	¥ 28,125
Payables under securities lending transactions	1,111	913
Obligations to return securities received as collateral	3,391	3,087
Total	32,970	32,125
Japanese National Government and Japanese Government Agency Bonds [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	9,662	8,306
Payables under securities lending transactions	87	21
Obligations to return securities received as collateral	1,208	856
Total	10,957	9,183
Foreign Government and Official Institution Bonds [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	15,142	14,291
Payables under securities lending transactions	57
Obligations to return securities received as collateral	1,018	1,286
Total	16,217	15,577
Corporate Bonds [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	663	705
Obligations to return securities received as collateral	122	172
Total	785	877
Residential Mortgage-backed Securities [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	2,323	4,369
Total	2,323	4,369
Other Debt Securities [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	275	238
Total	275	238
Marketable Equity Securities [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	276	200
Payables under securities lending transactions	965	892
Obligations to return securities received as collateral	1,043	772
Total	2,284	1,864
Others [Member]
Repurchase Agreements, and Securities Lending Transactions Accounted for as Secured Borrowings [Line Items]
Payables under repurchase agreements	127	16
Payables under securities lending transactions	2
Obligations to return securities received as collateral		1
Total	¥ 129	¥ 17

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Changes in Accumulated OCI, Net of Tax and Net of Noncontrolling Interests) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net unrealized gains (losses) on investment securities, Balance at beginning of period	¥ (369,369)	¥ 2,270,346
Net unrealized gains (losses) on investment securities, Net change during the period	82,908	(91,819)
Net unrealized gains (losses) on investment securities, Balance at end of period	(286,461)	(521,804)
Net debt valuation adjustments, Balance at beginning of period	(8,670)	(16,488)
Net debt valuation adjustments, Net change during the period	850	(2,226)
Net debt valuation adjustments, Balance at end of period	(7,820)	(20,625)
Net unrealized losses on derivatives qualifying for cash flow hedges, Balance at beginning of period	(24,140)	(19,250)
Net unrealized losses on derivatives qualifying for cash flow hedges, Net change during the period	9,167	(6,843)
Net unrealized losses on derivatives qualifying for cash flow hedges, Balance at end of period	(14,973)	(26,093)
Defined benefit plans, Balance at beginning of period	(208,273)	(119,593)
Defined benefit plans, Net change during the period	(7,750)	16,459
Defined benefit plans, Balance at end of period	(216,023)	(103,134)
Foreign currency translation adjustments, Balance at beginning of period	326,183	362,300
Foreign currency translation adjustments, Net change during the period	(205,047)	37,116
Foreign currency translation adjustments, Balance at end of period	121,136	399,416
Accumulated other comprehensive income (loss), net of taxes: Balance at end of period	¥ (404,141)	(272,240)	¥ (284,269)
Net Unrealized Gains (Losses) on Investment Securities [Member] | Recognition and Measurement of Financial Assets and Financial Liabilities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Effect of adopting new guidance		(2,700,331)
Net Debt Valuation Adjustments [Member] | Recognition and Measurement of Financial Assets and Financial Liabilities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Effect of adopting new guidance		¥ (1,911)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) (Before Tax and Net of Tax Changes in Each Component of Accumulated OCI) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Net unrealized gains (losses) on investment securities, Before tax:
Net unrealized gains (losses) on investment securities	¥ 157,642	¥ (94,429)
Reclassification adjustment for gains included in net income before attribution of noncontrolling interests	(45,354)	(14,494)
Net change	112,288	(108,923)
Net unrealized gains (losses) on investment securities, Tax (expense) or benefit:
Net unrealized gains (losses) on investment securities	(34,202)	29,952
Reclassification adjustment for gains included in net income before attribution of noncontrolling interests	13,370	4,626
Net change	(20,832)	34,578
Net unrealized gains (losses) on investment securities, Net of tax:
Net unrealized gains (losses) on investment securities	123,440	(64,477)
Reclassification adjustment for gains included in net income before attribution of noncontrolling interests	(31,984)	(9,868)
Net change	91,456	(74,345)
Net unrealized gains on investment securities attributable to noncontrolling interests	8,548	17,474
Net unrealized gains (losses) on investment securities attributable to Mitsubishi UFJ Financial Group	82,908	(91,819)
Net debt valuation adjustments, Before tax:
Net debt valuation adjustments	1,067	(4,038)
Reclassification adjustment for losses included in net income before attribution of noncontrolling interests	159	829
Net change	1,226	(3,209)
Net debt valuation adjustments, Tax (expense) or benefit:
Net debt valuation adjustments	(327)	1,236
Reclassification adjustment for losses included in net income before attribution of noncontrolling interests	(49)	(253)
Net change	(376)	983
Net debt valuation adjustments, Net of tax:
Net debt valuation adjustments	740	(2,802)
Reclassification adjustment for losses included in net income before attribution of noncontrolling interests	110	576
Net change	850	(2,226)
Net debt valuation adjustments attributable to noncontrolling interests
Net debt valuation adjustments attributable to Mitsubishi UFJ Financial Group	850	(2,226)
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges, Before tax:
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges	6,748	(10,138)
Reclassification adjustment for losses included in net income before attribution of noncontrolling interests	5,843	735
Net change	12,591	(9,403)
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges, Tax (expense) or benefit:
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges	(1,934)	2,774
Reclassification adjustment for losses included in net income before attribution of noncontrolling interests	(1,527)	(214)
Net change	(3,461)	2,560
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges, Net of tax:
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges	4,814	(7,364)
Reclassification adjustment for losses included in net income before attribution of noncontrolling interests	4,316	521
Net change	9,130	(6,843)
Net unrealized losses on derivatives qualifying for cash flow hedges attributable to noncontrolling interests	(37)
Net unrealized gains (losses) on derivatives qualifying for cash flow hedges attributable to Mitsubishi UFJ Financial Group	9,167	(6,843)
Defined benefit plans, Before tax:
Defined benefit plans	(13,959)	26,282
Reclassification adjustment for gains (losses) included in net income before attribution of noncontrolling interests	2,169	(2,643)
Net change	(11,790)	23,639
Defined benefit plans, Tax (expense) or benefit:
Defined benefit plans	3,917	(8,022)
Reclassification adjustment for gains (losses) included in net income before attribution of noncontrolling interests	(500)	878
Net change	3,417	(7,144)
Defined benefit plans, Net of tax:
Defined benefit plans	(10,042)	18,260
Reclassification adjustment for gains (losses) included in net income before attribution of noncontrolling interests	1,669	(1,765)
Net change	(8,373)	16,495
Defined benefit plans attributable to noncontrolling interests	(623)	36
Defined benefit plans attributable to Mitsubishi UFJ Financial Group	(7,750)	16,459
Foreign currency translation adjustments, Before tax:
Foreign currency translation adjustments	(224,257)	63,376
Reclassification adjustment for gains included in net income before attribution of noncontrolling interests	(2,208)	(2,685)
Net change	(226,465)	60,691
Foreign currency translation adjustments, Tax (expense) or benefit:
Foreign currency translation adjustments	24,752	(35,893)
Reclassification adjustment for gains included in net income before attribution of noncontrolling interests	1,095	851
Net change	25,847	(35,042)
Foreign currency translation adjustments, Net of tax:
Foreign currency translation adjustments	(199,505)	27,483
Reclassification adjustment for gains included in net income before attribution of noncontrolling interests	(1,113)	(1,834)
Net change	(200,618)	25,649
Foreign currency translation adjustments attributable to noncontrolling interests	4,429	(11,467)
Foreign currency translation adjustments attributable to Mitsubishi UFJ Financial Group	(205,047)	37,116
Other comprehensive loss attributable to Mitsubishi UFJ Financial Group	¥ (119,872)	¥ (47,313)

Accumulated Other Comprehensi_5

Accumulated Other Comprehensive Income (Loss) (Reclassification of Significant Items out of Accumulated OCI) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains—net	[1]	¥ (11,654)	¥ (422,998)
Equity in earnings of equity method investees—net		(165,487)	(140,014)
Interest income on Loans, including fees		(1,322,361)	(1,236,933)
Other non-interest income		(73,729)	(63,078)
Other non-interest expenses		(156,424)	(118,198)
Total before tax		(838,492)	(695,767)
Income tax expense		221,171	143,212
Net of tax		(617,321)	(552,555)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax		(39,391)	(18,258)
Income tax expense		12,389	5,888
Net of tax		(27,002)	(12,370)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Unrealized Gains (Losses) on Investment Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other		196	(18)
Total before tax		(45,354)	(14,494)
Income tax expense		13,370	4,626
Net of tax		(31,984)	(9,868)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Unrealized Gains (Losses) on Investment Securities [Member] | Net Gains on Sales and Redemptions of Available-for-sale debt Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains—net		(45,550)	(14,476)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Debt Valuation Adjustments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Equity in earnings of equity method investees—net		159	829
Total before tax		159	829
Income tax expense		(49)	(253)
Net of tax		110	576
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Unrealized Losses (Gains) on Derivatives Qualifying for Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other		2	(81)
Total before tax		5,843	735
Income tax expense		(1,527)	(214)
Net of tax		4,316	521
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Unrealized Losses (Gains) on Derivatives Qualifying for Cash Flow Hedges [Member] | Interest Rate Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income on Loans, including fees		4,408	816
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Unrealized Losses (Gains) on Derivatives Qualifying for Cash Flow Hedges [Member] | Foreign Exchange Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense on Long-term debt or Foreign exchange losses—net		1,433
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax		2,169	(2,643)
Income tax expense		(500)	878
Net of tax		1,669	(1,765)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Plans [Member] | Net actuarial loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	[2]	8,073	4,452
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Plans [Member] | Prior service cost [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	[2]	(2,882)	(3,095)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Plans [Member] | Loss (gain) on settlements and curtailment, and other [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest expenses	[2]	(3,022)	(4,000)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Currency Translation Adjustments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other non-interest income		(4,976)	(2,686)
Other non-interest expenses		2,768	1
Total before tax		(2,208)	(2,685)
Income tax expense		1,095	851
Net of tax		¥ (1,113)	¥ (1,834)
[1]	The following credit losses are included in Investment securities gains—net: Decline in fair value by ¥81 million and ¥582 million; Other comprehensive income—net by ¥4 million and ¥79 million; Total credit losses by ¥85 million and ¥661 million, for the six months ended September 30, 2018 and 2019, respectively.
[2]	These Accumulated OCI components are components of net periodic benefit cost. See Note 8 for more information.

Noncontrolling Interests (Effec

Noncontrolling Interests (Effect on MUFG's Shareholders' Equity from Changes in Ownership of Subsidiaries) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Noncontrolling Interest [Abstract]
Net income attributable to Mitsubishi UFJ Financial Group	¥ 616,542	¥ 553,251
Transactions between Mitsubishi UFJ Financial Group and the noncontrolling interest shareholders	6,094	36
Net transfers from the noncontrolling interest shareholders	6,094	36
Change from net income attributable to Mitsubishi UFJ Financial Group and transactions between Mitsubishi UFJ Financial Group and the noncontrolling interest shareholders	¥ 622,636	¥ 553,287

Derivative Financial Instrume_3

Derivative Financial Instruments (Narrative) (Detail) - JPY (¥) ¥ in Billions		6 Months Ended			12 Months Ended
		Sep. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019
Cash Flow Hedge:
Derivative, Notional Amount	[1]	¥ 1,713,300			¥ 1,656,900
Credit Derivatives:
Carrying value of credit protection, offsetting with purchased protection with identical underlying referenced entities, in approximate		60			35
Notional amounts of credit protection, offsetting with purchased protection with identical underlying referenced entities, in approximate		3,179			2,687
Credit Risk, Liquidity Risk and Credit-risk-related Contingent Features:
Aggregate fair value of derivative instruments with credit-risk-related contingent features in a liability position, in approximate		700			600
Aggregate fair value of derivative instruments with credit-risk-related contingent features in a liability position, posted collateral, in approximate		141			85
Additional collateral amount which could be requested if the MUFG Group's debt falls below investment grade		68			84
Early termination amount which could be requested if the MUFG Group's debt falls below investment grade		78			56
Interest Rate Contracts [Member]
Cash Flow Hedge:
Derivative, Notional Amount	[1]	¥ 1,457,500			¥ 1,409,600
MUAH [Member]
Cash Flow Hedge:
Approximate losses expected to be reclassified to net interest income during the twelve months ending June 30, 2020			¥ 8.6
Fair Value Hedges:
Type of fair value hedging instruments used in interest rate hedging strategy			interest rate derivatives
Objective for interest rate hedging strategy			mitigated the changes in fair value of the hedged liability caused by changes in the designated interest rate, LIBOR.
Fair value hedges
MUAH [Member] | Interest Rate Contracts [Member] | Maximum [Member]
Fair Value Hedges:
Losses on the hedging instruments				¥ (1)
Gains on the hedged liability				¥ 1
MUAH [Member] | Cash Flow Hedging [Member] | Weighted Average [Member]
Cash Flow Hedge:
Remaining life of the active cash flow hedges, in years			2 years 9 months 18 days
MUAH [Member] | Cash Flow Hedging [Member] | Interest Rate Contracts [Member] | Interest Rates From Variable Rate Loans [Member]
Cash Flow Hedge:
Derivative, Notional Amount			¥ 377.3
MUAH [Member] | Cash Flow Hedging [Member] | Interest Rate Contracts [Member] | Interest Rate On LIBOR indexed short-term borrowings [Member]
Cash Flow Hedge:
Derivative, Notional Amount			¥ 7.4
[1]	Includes both written and purchased positions.

Derivative Financial Instrume_4

Derivative Financial Instruments (Notional Amounts of Derivative Contracts) (Detail) - JPY (¥) ¥ in Trillions		Sep. 30, 2019	Mar. 31, 2019
Derivative [Line Items]
Notional amounts of derivatives	[1]	¥ 1,713.3	¥ 1,656.9
Interest Rate Contracts [Member]
Derivative [Line Items]
Notional amounts of derivatives	[1]	1,457.5	1,409.6
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Notional amounts of derivatives	[1]	237.6	230.5
Equity Contracts [Member]
Derivative [Line Items]
Notional amounts of derivatives	[1]	7.2	6.4
Commodity Contracts [Member]
Derivative [Line Items]
Notional amounts of derivatives	[1]	0.2	0.2
Credit Derivatives [Member]
Derivative [Line Items]
Notional amounts of derivatives	[1]	7.8	7.2
Others [Member]
Derivative [Line Items]
Notional amounts of derivatives	[1]	¥ 3	¥ 3
[1]	Includes both written and purchased positions.

Derivative Financial Instrume_5

Derivative Financial Instruments (Fair Value Information on Derivative Instruments Recorded on Condensed Consolidated Balance Sheets) (Detail) - JPY (¥) ¥ in Billions		Sep. 30, 2019	Mar. 31, 2019
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[3]	¥ 14,975	¥ 13,205
Fair value of derivative liabilities	[1],[2],[3]	14,182	12,710
Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[3]	11,734	10,109
Fair value of derivative liabilities	[1],[2],[3]	11,217	9,896
Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[3]	2,968	2,795
Fair value of derivative liabilities	[1],[2],[3]	2,776	2,671
Equity Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[3]	149	188
Fair value of derivative liabilities	[1],[2],[3]	189	183
Commodity Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[3]	28	27
Fair value of derivative liabilities	[1],[2],[3]	26	27
Credit Derivatives [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[3]	95	84
Fair value of derivative liabilities	[1],[2],[3]	84	69
Others [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[3]	1	2
Fair value of derivative liabilities	[1],[2],[3],[4]	(110)	(136)
Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[5]	14,974	13,204
Fair value of derivative liabilities	[1],[2],[5]	14,179	12,710
Not Designated as Hedging Instruments [Member] | Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[5]	11,734	10,108
Fair value of derivative liabilities	[1],[2],[5]	11,217	9,896
Not Designated as Hedging Instruments [Member] | Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[5]	2,967	2,795
Fair value of derivative liabilities	[1],[2],[5]	2,773	2,671
Not Designated as Hedging Instruments [Member] | Equity Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[5]	149	188
Fair value of derivative liabilities	[1],[2],[5]	189	183
Not Designated as Hedging Instruments [Member] | Commodity Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[5]	28	27
Fair value of derivative liabilities	[1],[2],[5]	26	27
Not Designated as Hedging Instruments [Member] | Credit Derivatives [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[5]	95	84
Fair value of derivative liabilities	[1],[2],[5]	84	69
Not Designated as Hedging Instruments [Member] | Others [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[5]	1	2
Fair value of derivative liabilities	[1],[2],[4],[5]	(110)	(136)
Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[6]	1	1
Fair value of derivative liabilities	[1],[2],[6]	3
Designated as Hedging Instruments [Member] | Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[6]		1
Fair value of derivative liabilities	[1],[2],[6]
Designated as Hedging Instruments [Member] | Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[6]	1
Fair value of derivative liabilities	[1],[2],[6]	3
Designated as Hedging Instruments [Member] | Equity Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[6]
Fair value of derivative liabilities	[1],[2],[6]
Designated as Hedging Instruments [Member] | Commodity Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[6]
Fair value of derivative liabilities	[1],[2],[6]
Designated as Hedging Instruments [Member] | Credit Derivatives [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[6]
Fair value of derivative liabilities	[1],[2],[6]
Designated as Hedging Instruments [Member] | Others [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	[1],[2],[6]
Fair value of derivative liabilities	[1],[2],[4],[6]
[1]	For more information about fair value measurement and assumptions used to measure the fair value of derivatives, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.
[2]	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.
[3]	This table does not include contracts with embedded derivatives for which the fair value option has been elected.
[4]	Others mainly include bifurcated embedded derivatives carried at fair value, which are presented in Deposits and Long-term debt.
[5]	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/liabilities except for (6).
[6]	The MUFG Group adopts hedging strategies and applies hedge accounting to certain derivative transactions entered into by certain subsidiaries. The derivative instruments which are designated as hedging instruments are presented in Other assets or Other liabilities on the accompanying condensed consolidated balance sheets.

Derivative Financial Instrume_6

Derivative Financial Instruments (Gains and Losses for Trading and Risk Management Derivatives (Not Designated as Hedging Instruments)) (Detail) - JPY (¥) ¥ in Billions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	¥ (207)	¥ (520)
Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	122	(53)
Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(185)	(287)
Equity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(58)	(115)
Commodity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(15)
Credit Derivatives [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(23)	(5)
Others [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(48)	(60)
Foreign Exchange Gains (Losses)-Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(185)	(292)
Foreign Exchange Gains (Losses)-Net [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)
Foreign Exchange Gains (Losses)-Net [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(185)	(287)
Foreign Exchange Gains (Losses)-Net [Member] | Equity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)
Foreign Exchange Gains (Losses)-Net [Member] | Commodity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)
Foreign Exchange Gains (Losses)-Net [Member] | Credit Derivatives [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)
Foreign Exchange Gains (Losses)-Net [Member] | Others [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)		(5)
Trading Account Profits (Losses)-Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(22)	(228)
Trading Account Profits (Losses)-Net [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	122	(53)
Trading Account Profits (Losses)-Net [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)
Trading Account Profits (Losses)-Net [Member] | Equity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(58)	(115)
Trading Account Profits (Losses)-Net [Member] | Commodity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(15)
Trading Account Profits (Losses)-Net [Member] | Credit Derivatives [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	(23)	(5)
Trading Account Profits (Losses)-Net [Member] | Others [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Trading and risk management derivatives gains and losses (Not designated as hedging instruments)	¥ (48)	¥ (55)

Derivative Financial Instrume_7

Derivative Financial Instruments (Gains and Losses for Derivatives Designated as Cash Flow Hedges) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in Accumulated OCI on derivative instruments		¥ 6,748	¥ (10,138)
Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in Accumulated OCI on derivative instruments		6,000	(11,000)
Losses reclassified from Accumulated OCI into income	[1]	(6,000)	(1,000)
Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in Accumulated OCI on derivative instruments		8,000	(11,000)
Losses reclassified from Accumulated OCI into income	[1]	(5,000)	(1,000)
Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in Accumulated OCI on derivative instruments		(2,000)
Losses reclassified from Accumulated OCI into income	[1]	¥ (1,000)
[1]	Mainly included in Interest income and Interest expense.

Derivative Financial Instrume_8

Derivative Financial Instruments (Protection Sold Through Credit Default Swaps) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less		¥ 506,114	¥ 590,984
Maximum potential/Notional amount, Expiring in 1-5 years		2,955,637	2,470,694
Maximum potential/Notional amount, Expiring over 5 years		224,493	162,805
Maximum potential/Notional amount, Total		3,686,244	3,224,483
Credit derivative (asset) liability at fair value	[1]	(69,283)	(40,085)
Protection sold [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less		430,570	513,291
Maximum potential/Notional amount, Expiring in 1-5 years		2,955,637	2,470,694
Maximum potential/Notional amount, Expiring over 5 years		224,493	162,805
Maximum potential/Notional amount, Total		3,610,700	3,146,790
Credit derivative (asset) liability at fair value	[1]	(66,687)	(39,465)
Protection sold [Member] | Single Name Credit Default Swaps [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less		400,079	491,428
Maximum potential/Notional amount, Expiring in 1-5 years		2,350,925	1,847,389
Maximum potential/Notional amount, Expiring over 5 years		210,742	151,361
Maximum potential/Notional amount, Total		2,961,746	2,490,178
Credit derivative (asset) liability at fair value	[1]	(55,009)	(30,477)
Protection sold [Member] | Single Name Credit Default Swaps [Member] | Investment Grade [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	[2]	309,164	378,527
Maximum potential/Notional amount, Expiring in 1-5 years	[2]	2,106,326	1,603,962
Maximum potential/Notional amount, Expiring over 5 years	[2]	204,179	145,689
Maximum potential/Notional amount, Total	[2]	2,619,669	2,128,178
Credit derivative (asset) liability at fair value	[1],[2]	(53,843)	(30,303)
Protection sold [Member] | Single Name Credit Default Swaps [Member] | Non-investment Grade [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less		90,915	112,901
Maximum potential/Notional amount, Expiring in 1-5 years		233,751	238,330
Maximum potential/Notional amount, Expiring over 5 years		6,563	5,672
Maximum potential/Notional amount, Total		331,229	356,903
Credit derivative (asset) liability at fair value	[1]	(1,168)	(127)
Protection sold [Member] | Single Name Credit Default Swaps [Member] | Not Rated [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less
Maximum potential/Notional amount, Expiring in 1-5 years		10,848	5,097
Maximum potential/Notional amount, Expiring over 5 years
Maximum potential/Notional amount, Total		10,848	5,097
Credit derivative (asset) liability at fair value	[1]	2	(47)
Protection sold [Member] | Index and Basket Credit Default Swaps Sold [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less		30,491	21,863
Maximum potential/Notional amount, Expiring in 1-5 years		604,712	623,305
Maximum potential/Notional amount, Expiring over 5 years		13,751	11,444
Maximum potential/Notional amount, Total		648,954	656,612
Credit derivative (asset) liability at fair value	[1]	(11,678)	(8,988)
Protection sold [Member] | Index and Basket Credit Default Swaps Sold [Member] | BK [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less
Maximum potential/Notional amount, Expiring in 1-5 years		173,561	221,855
Maximum potential/Notional amount, Expiring over 5 years
Maximum potential/Notional amount, Total		173,561	221,855
Credit derivative (asset) liability at fair value	[1]	(2,026)	(2,092)
Protection sold [Member] | Index and Basket Credit Default Swaps Sold [Member] | BK [Member] | Investment Grade [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	[2]
Maximum potential/Notional amount, Expiring in 1-5 years	[2]	74,275	120,854
Maximum potential/Notional amount, Expiring over 5 years	[2]
Maximum potential/Notional amount, Total	[2]	74,275	120,854
Credit derivative (asset) liability at fair value	[1],[2]	(2)	(82)
Protection sold [Member] | Index and Basket Credit Default Swaps Sold [Member] | BK [Member] | Non-investment Grade [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less
Maximum potential/Notional amount, Expiring in 1-5 years		98,207	101,001
Maximum potential/Notional amount, Expiring over 5 years
Maximum potential/Notional amount, Total		98,207	101,001
Credit derivative (asset) liability at fair value	[1]	(2,024)	(2,010)
Protection sold [Member] | Index and Basket Credit Default Swaps Sold [Member] | BK [Member] | Not Rated [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less
Maximum potential/Notional amount, Expiring in 1-5 years		1,079
Maximum potential/Notional amount, Expiring over 5 years
Maximum potential/Notional amount, Total		1,079
Credit derivative (asset) liability at fair value
Protection sold [Member] | Index and Basket Credit Default Swaps Sold [Member] | SCHD [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less		30,491	21,863
Maximum potential/Notional amount, Expiring in 1-5 years		431,151	401,450
Maximum potential/Notional amount, Expiring over 5 years		13,751	11,444
Maximum potential/Notional amount, Total		475,393	434,757
Credit derivative (asset) liability at fair value	[1]	(9,652)	(6,896)
Protection sold [Member] | Index and Basket Credit Default Swaps Sold [Member] | SCHD [Member] | Investment Grade [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	[2]		13,000
Maximum potential/Notional amount, Expiring in 1-5 years	[2]	24,301	194,618
Maximum potential/Notional amount, Expiring over 5 years	[2]	831	8,000
Maximum potential/Notional amount, Total	[2]	25,132	215,618
Credit derivative (asset) liability at fair value	[1],[2]	(603)	(3,853)
Protection sold [Member] | Index and Basket Credit Default Swaps Sold [Member] | SCHD [Member] | Non-investment Grade [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less		14,000
Maximum potential/Notional amount, Expiring in 1-5 years		159,000
Maximum potential/Notional amount, Expiring over 5 years		9,000
Maximum potential/Notional amount, Total		182,000
Credit derivative (asset) liability at fair value	[1]	(3,335)
Protection sold [Member] | Index and Basket Credit Default Swaps Sold [Member] | SCHD [Member] | Not Rated [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less		16,491	8,863
Maximum potential/Notional amount, Expiring in 1-5 years		247,850	206,832
Maximum potential/Notional amount, Expiring over 5 years		3,920	3,444
Maximum potential/Notional amount, Total		268,261	219,139
Credit derivative (asset) liability at fair value	[1]	(5,714)	(3,043)
Other Credit Derivatives Sold [Member] | Investment Grade [Member]
Credit Derivatives [Line Items]
Maximum potential/Notional amount, Expiring in 1 year or less	[3]	75,544	77,693
Maximum potential/Notional amount, Expiring in 1-5 years	[3]
Maximum potential/Notional amount, Expiring over 5 years	[3]
Maximum potential/Notional amount, Total	[3]	75,544	77,693
Credit derivative (asset) liability at fair value	[1],[3]	¥ (2,596)	¥ (620)
[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 total return swaps.

Obligations under Guarantees _3

Obligations under Guarantees and Other Off-balance Sheet Instruments (Contractual or Notional Amounts of Guarantees) (Detail) - JPY (¥) ¥ in Billions		Sep. 30, 2019	Mar. 31, 2019
Guarantor Obligations [Line Items]
Contractual or Notional amount		¥ 79,630	¥ 76,755
Standby Letters of Credit and Financial Guarantees [Member]
Guarantor Obligations [Line Items]
Contractual or Notional amount		3,986	3,901
Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Contractual or Notional amount		3,172	3,256
Derivative Instruments [Member]
Guarantor Obligations [Line Items]
Contractual or Notional amount	[1],[2]	60,002	58,025
Liabilities of Trust Accounts [Member]
Guarantor Obligations [Line Items]
Contractual or Notional amount		12,394	11,520
Others [Member]
Guarantor Obligations [Line Items]
Contractual or Notional amount		¥ 76	¥ 53
[1]	Credit derivatives sold by the MUFG Group are excluded from this presentation.
[2]	Derivative instruments that are deemed to be included within the definition of guarantees as prescribed in the guidance on guarantees include certain written options and credit default swaps.

Obligations under Guarantees _4

Obligations under Guarantees and Other Off-balance Sheet Instruments (Maximum Potential Amount of Future Payments Classified Based upon Internal Credit Ratings) (Detail) - JPY (¥) ¥ in Billions		Sep. 30, 2019	Mar. 31, 2019
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		¥ 79,630	¥ 76,755
Standby Letters of Credit and Financial Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		3,986	3,901
Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		3,172	3,256
Standby Letters of Credit, Financial and Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		7,158	7,157
Normal [Member] | Standby Letters of Credit and Financial Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		3,855	3,779
Normal [Member] | Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		2,976	3,070
Normal [Member] | Standby Letters of Credit, Financial and Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		6,831	6,849
Close Watch [Member] | Standby Letters of Credit and Financial Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	[1]	91	98
Close Watch [Member] | Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	[1]	127	79
Close Watch [Member] | Standby Letters of Credit, Financial and Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	[1]	218	177
Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member] | Standby Letters of Credit and Financial Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	[1]	37	21
Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member] | Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	[1]	45	78
Likely to Become Bankrupt or Legally / Virtually Bankrupt [Member] | Standby Letters of Credit, Financial and Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade	[1]	82	99
Not Rated [Member] | Standby Letters of Credit and Financial Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		3	3
Not Rated [Member] | Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		24	29
Not Rated [Member] | Standby Letters of Credit, Financial and Performance Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential / Contractual or Notional amount, Amount by borrower grade		¥ 27	¥ 32
[1]	See Notes of the tables regarding “the maximum potential amount of future payments classified based upon internal credit ratings “in Note 25 to the consolidated financial statements for the fiscal year ended March 31, 2019.

Obligations under Guarantees _5

Obligations under Guarantees and Other Off-balance Sheet Instruments (Contractual Amounts with Regard to Other Off-balance Sheet Instruments) (Detail) - JPY (¥) ¥ in Billions	Sep. 30, 2019	Mar. 31, 2019
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	¥ 78,181	¥ 77,273
Commercial Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	826	1,057
Commitments to Make Investments [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	240	240
Other [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with regard to other off-balance sheet instruments	¥ 6	¥ 5

Contingent Liabilities (Narrati

Contingent Liabilities (Narrative) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2019	Mar. 31, 2019
Contingent Liabilities [Line Items]
Limit on aggregate credit extensions over the borrower's annual income	33.333%
Allowance for repayment of excess interest	¥ 19,598	¥ 24,983
Maximum [Member]
Contingent Liabilities [Line Items]
Previous permissible interest rate under the Japanese Act Regulating the Receipt of Contributions, the Receipt of Deposits, and Interest Rates	29.20%
Current permissible interest rate under the Japanese Act Regulating the Receipt of Contributions, the Receipt of Deposits, and Interest Rates	20.00%
Interest rate under the Interest Rate Restriction Act previously subject to gray-zone interest rates	20.00%
Minimum [Member]
Contingent Liabilities [Line Items]
Interest rate under the Interest Rate Restriction Act previously subject to gray-zone interest rates	15.00%

Variable Interest Entities (Ass

Variable Interest Entities (Assets and Liabilities of Consolidated Variable Interest Entities) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2019	Mar. 31, 2019
Variable Interest Entity [Line Items]
Total assets	¥ 309,380,106	¥ 305,228,899
Consolidated assets, Cash and due from banks	34,248,338	33,924,340
Consolidated assets, Interest-earning deposits in other banks	39,079,835	40,646,920
Consolidated assets, Trading account assets	43,575,119	40,576,618
Consolidated assets, Investment securities	42,760,194	44,938,004
Consolidated assets, Loans	114,572,737	116,225,757
Total liabilities	292,850,067	289,244,151
Consolidated liabilities, Deposits	198,178,742	199,280,789
Consolidated liabilities, Long-term debt	27,649,456	27,990,543
Consolidated VIEs [Member]
Variable Interest Entity [Line Items]
Total assets	19,435,794	18,220,086
Consolidated assets, Cash and due from banks	35	7
Consolidated assets, Interest-earning deposits in other banks	26,572	23,655
Consolidated assets, Trading account assets	789,650	528,690
Consolidated assets, Investment securities	1,775,175	1,828,194
Consolidated assets, Loans	16,456,854	15,545,328
Consolidated assets, All other assets	387,508	294,212
Total liabilities	592,109	572,714
Consolidated liabilities, Deposits
Consolidated liabilities, Other short-term borrowings	34,721	20,535
Consolidated liabilities, Long-term debt	472,532	490,033
Consolidated liabilities, All other liabilities	84,856	62,146
Consolidated VIEs [Member] | Consolidated VIEs before Elimination [Member]
Variable Interest Entity [Line Items]
Total assets	26,578,144	25,992,862
Consolidated assets, Cash and due from banks	43,706	93,178
Consolidated assets, Interest-earning deposits in other banks	53,429	53,016
Consolidated assets, Trading account assets	797,554	533,792
Consolidated assets, Investment securities	1,938,210	1,891,525
Consolidated assets, Loans	23,334,700	23,097,643
Consolidated assets, All other assets	410,545	323,708
Total liabilities	25,586,988	25,171,410
Consolidated liabilities, Deposits	7,044,811	7,616,575
Consolidated liabilities, Other short-term borrowings	4,403,827	4,735,822
Consolidated liabilities, Long-term debt	12,301,929	12,007,173
Consolidated liabilities, All other liabilities	1,836,421	811,840
Consolidated VIEs [Member] | Consolidated VIEs before Elimination [Member] | Asset-backed Conduits [Member]
Variable Interest Entity [Line Items]
Total assets	6,258,951	6,698,146
Consolidated assets, Cash and due from banks	42,849	92,310
Consolidated assets, Interest-earning deposits in other banks	29,798	26,101
Consolidated assets, Trading account assets	9,640	3,005
Consolidated assets, Investment securities	1,280,174	1,424,444
Consolidated assets, Loans	4,869,809	5,124,462
Consolidated assets, All other assets	26,681	27,824
Total liabilities	6,247,794	6,691,362
Consolidated liabilities, Other short-term borrowings	4,314,641	4,678,588
Consolidated liabilities, Long-term debt	1,490,152	1,552,572
Consolidated liabilities, All other liabilities	443,001	460,202
Consolidated VIEs [Member] | Consolidated VIEs before Elimination [Member] | Investment Funds [Member]
Variable Interest Entity [Line Items]
Total assets	868,307	680,922
Consolidated assets, Interest-earning deposits in other banks	15,064	14,113
Consolidated assets, Trading account assets	586,508	477,239
Consolidated assets, Investment securities	24,635	18,118
Consolidated assets, All other assets	242,100	171,452
Total liabilities	23,330	6,852
Consolidated liabilities, Long-term debt	5,392	5,158
Consolidated liabilities, All other liabilities	17,938	1,694
Consolidated VIEs [Member] | Consolidated VIEs before Elimination [Member] | Special Purpose Entities Created for Structured Financing [Member]
Variable Interest Entity [Line Items]
Total assets	212,667	203,458
Consolidated assets, Interest-earning deposits in other banks	2,246	2,214
Consolidated assets, Loans	115,375	127,243
Consolidated assets, All other assets	95,046	74,001
Total liabilities	117,285	114,469
Consolidated liabilities, Other short-term borrowings	308	609
Consolidated liabilities, Long-term debt	114,935	111,523
Consolidated liabilities, All other liabilities	2,042	2,337
Consolidated VIEs [Member] | Consolidated VIEs before Elimination [Member] | Repackaged Instruments [Member]
Variable Interest Entity [Line Items]
Total assets	286,959	279,327
Consolidated assets, Cash and due from banks	504	506
Consolidated assets, Interest-earning deposits in other banks	3,000
Consolidated assets, Trading account assets	46,652	53,346
Consolidated assets, Investment securities	134,281	137,509
Consolidated assets, Loans	99,787	86,753
Consolidated assets, All other assets	2,735	1,213
Total liabilities	285,596	277,179
Consolidated liabilities, Other short-term borrowings	81,736	48,014
Consolidated liabilities, Long-term debt	168,002	174,215
Consolidated liabilities, All other liabilities	35,858	54,950
Consolidated VIEs [Member] | Consolidated VIEs before Elimination [Member] | Securitization of MUFG Group's Assets [Member]
Variable Interest Entity [Line Items]
Total assets	11,373,985	10,208,496
Consolidated assets, Loans	11,351,035	10,183,624
Consolidated assets, All other assets	22,950	24,872
Total liabilities	11,344,643	10,167,632
Consolidated liabilities, Long-term debt	10,522,062	10,162,231
Consolidated liabilities, All other liabilities	822,581	5,401
Consolidated VIEs [Member] | Consolidated VIEs before Elimination [Member] | Trust Arrangements [Member]
Variable Interest Entity [Line Items]
Total assets	7,546,940	7,888,210
Consolidated assets, Interest-earning deposits in other banks	1,566	8,953
Consolidated assets, Trading account assets	154,754	202
Consolidated assets, Investment securities	499,070	311,412
Consolidated assets, Loans	6,890,574	7,565,862
Consolidated assets, All other assets	976	1,781
Total liabilities	7,539,764	7,881,332
Consolidated liabilities, Deposits	7,044,811	7,616,575
Consolidated liabilities, All other liabilities	494,953	264,757
Consolidated VIEs [Member] | Consolidated VIEs before Elimination [Member] | Others [Member]
Variable Interest Entity [Line Items]
Total assets	30,335	34,303
Consolidated assets, Cash and due from banks	353	362
Consolidated assets, Interest-earning deposits in other banks	1,755	1,635
Consolidated assets, Investment securities	50	42
Consolidated assets, Loans	8,120	9,699
Consolidated assets, All other assets	20,057	22,565
Total liabilities	28,576	32,584
Consolidated liabilities, Other short-term borrowings	7,142	8,611
Consolidated liabilities, Long-term debt	1,386	1,474
Consolidated liabilities, All other liabilities	20,048	22,499
Consolidated VIEs [Member] | Amounts Eliminated in Consolidation [Member]
Variable Interest Entity [Line Items]
Total assets	(7,142,350)	(7,772,776)
Consolidated assets, Cash and due from banks	(43,671)	(93,171)
Consolidated assets, Interest-earning deposits in other banks	(26,857)	(29,361)
Consolidated assets, Trading account assets	(7,904)	(5,102)
Consolidated assets, Investment securities	(163,035)	(63,331)
Consolidated assets, Loans	(6,877,846)	(7,552,315)
Consolidated assets, All other assets	(23,037)	(29,496)
Total liabilities	(15,332,750)	(14,676,389)
Consolidated liabilities, Deposits	(5,226)	(50,396)
Consolidated liabilities, Other short-term borrowings	(2,487,360)	(2,996,041)
Consolidated liabilities, Long-term debt	(11,829,397)	(11,517,019)
Consolidated liabilities, All other liabilities	(1,010,767)	(112,933)
Consolidated VIEs [Member] | Amount of Liabilities with Recourse to General Credit of MUFG Group [Member]
Variable Interest Entity [Line Items]
Total liabilities	(9,662,129)	(9,922,307)
Consolidated liabilities, Deposits	(7,039,585)	(7,566,179)
Consolidated liabilities, Other short-term borrowings	(1,881,746)	(1,719,246)
Consolidated liabilities, Long-term debt		(121)
Consolidated liabilities, All other liabilities	¥ (740,798)	¥ (636,761)

Variable Interest Entities (A_2

Variable Interest Entities (Assets and Liabilities of Non-consolidated Variable Interest Entities) (Detail) - Non-consolidated VIEs [Member] - JPY (¥) ¥ in Millions	Sep. 30, 2019	Mar. 31, 2019
Variable Interest Entity [Line Items]
Total assets	¥ 213,004,579	¥ 213,008,709
Maximum exposure	18,309,375	19,106,098
On-balance sheet assets, Total assets	15,090,560	15,589,741
On-balance sheet assets, Trading account assets	1,534,222	1,254,322
On-balance sheet assets, Investment securities	5,046,478	5,242,402
On-balance sheet assets, Loans	8,339,651	8,914,380
On-balance sheet assets, All other assets	170,209	178,637
On-balance sheet liabilities, Total liabilities	51,404	73,687
On-balance sheet liabilities, All other liabilities	51,404	73,687
Asset-backed Conduits [Member]
Variable Interest Entity [Line Items]
Total assets	28,764,664	29,621,609
Maximum exposure	5,880,328	6,221,274
On-balance sheet assets, Total assets	4,768,093	4,982,357
On-balance sheet assets, Trading account assets	209	659
On-balance sheet assets, Investment securities	1,730,253	1,704,553
On-balance sheet assets, Loans	3,037,631	3,277,145
Investment Funds [Member]
Variable Interest Entity [Line Items]
Total assets	77,435,115	67,750,419
Maximum exposure	2,387,773	1,952,676
On-balance sheet assets, Total assets	2,189,030	1,753,823
On-balance sheet assets, Trading account assets	485,904	187,166
On-balance sheet assets, Investment securities	1,172,673	1,253,705
On-balance sheet assets, Loans	508,348	304,310
On-balance sheet assets, All other assets	22,105	8,642
On-balance sheet liabilities, Total liabilities	905	206
On-balance sheet liabilities, All other liabilities	905	206
Special Purpose Entities Created for Structured Financing [Member]
Variable Interest Entity [Line Items]
Total assets	40,927,261	42,676,571
Maximum exposure	3,897,816	3,972,450
On-balance sheet assets, Total assets	2,927,608	3,015,593
On-balance sheet assets, Trading account assets	360,859	252,597
On-balance sheet assets, Investment securities	44,726	48,895
On-balance sheet assets, Loans	2,515,702	2,709,008
On-balance sheet assets, All other assets	6,321	5,093
On-balance sheet liabilities, Total liabilities	14,957	9,827
On-balance sheet liabilities, All other liabilities	14,957	9,827
Repackaged Instruments [Member]
Variable Interest Entity [Line Items]
Total assets	9,269,157	12,885,367
Maximum exposure	3,152,126	3,477,545
On-balance sheet assets, Total assets	3,087,467	3,383,161
On-balance sheet assets, Trading account assets	546,494	690,305
On-balance sheet assets, Investment securities	2,089,473	2,169,798
On-balance sheet assets, Loans	395,565	478,252
On-balance sheet assets, All other assets	55,935	44,806
On-balance sheet liabilities, Total liabilities		6,087
On-balance sheet liabilities, All other liabilities		6,087
Others [Member]
Variable Interest Entity [Line Items]
Total assets	56,608,382	60,074,743
Maximum exposure	2,991,332	3,482,153
On-balance sheet assets, Total assets	2,118,362	2,454,807
On-balance sheet assets, Trading account assets	140,756	123,595
On-balance sheet assets, Investment securities	9,353	65,451
On-balance sheet assets, Loans	1,882,405	2,145,665
On-balance sheet assets, All other assets	85,848	120,096
On-balance sheet liabilities, Total liabilities	35,542	57,567
On-balance sheet liabilities, All other liabilities	¥ 35,542	¥ 57,567

Fees and Commissions Income (Na

Fees and Commissions Income (Narrative) (Detail) - JPY (¥) ¥ in Billions	Sep. 30, 2019	Mar. 31, 2019
Fees and Commissions Income [Abstract]
Receivables from contracts with customers included primarily in Other assets	¥ 189	¥ 185
Contract liabilities included primarily in Other liabilities	¥ 9	¥ 8

Fees and Commissions Income (De

Fees and Commissions Income (Details of Fees and Commissions Income) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		¥ 698,463	¥ 705,438
Deposits [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		26,731	26,568
Remittances and Transfers [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		83,541	84,342
Foreign Trading Business [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		33,117	35,453
Credit card business [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		118,916	110,223
Security-related Services [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		108,403	119,007
Administration and management services for investment funds [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		71,981	74,928
Trust fees [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		58,948	57,459
Guarantee fees [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	[1]	22,846	22,205
Insurance Commissions [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		21,178	23,469
Real Estate Business [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income		21,094	17,878
Others [Member]
Disaggregation of Contract Revenue [Line Items]
Fees and commissions income	[2]	¥ 131,708	¥ 133,906
[1]	Guarantee fees are not within the scope of the guidance on revenue from contracts with customers.
[2]	Other fees and commissions include non-refundable financing related fees that are not within the scope of the guidance on revenue from contracts with customers.

Business Segments (Narrative) (

Business Segments (Narrative) (Detail) ¥ in Billions	6 Months Ended
	Sep. 30, 2018JPY (¥)
Business Segment [Member] | Customer Business [Member] | Retail & Commercial Banking Business Group [Member]
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)	¥ 0.3
Business Segment [Member] | Customer Business [Member] | Japanese Corporate & Investment Banking Business Group [Member]
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)	(5.2)
Business Segment [Member] | Customer Business [Member] | Global Corporate & Investment Banking Business Group [Member]
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)	(4.8)
Business Segment [Member] | Customer Business [Member] | Global Commercial Banking Business Group [Member]
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)	(7.4)
Business Segment [Member] | Global Markets Business Group [Member]
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)	1
Business Segment, Other [Member]
Segment Reporting Information [Line Items]
Modification impact in operating profits (losses)	¥ 16.1

Business Segments (Financial In

Business Segments (Financial Information by Business Segment) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Business segment information
Net revenue		¥ 2,016,200	¥ 1,934,200
Net interest income		1,137,753	1,133,053
Operating expenses		1,393,900	1,363,700
Operating profit (loss)		622,300	570,500
BK and TB [Member]
Business segment information
Net revenue	[1]	1,015,800	1,015,300
Net interest income		490,600	659,200
Net fees		291,300	301,400
Other		233,900	54,700
Other than BK and TB [Member]
Business segment information
Net revenue		1,000,400	918,900
Business Segment [Member] | Customer Business [Member]
Business segment information
Net revenue		1,655,900	1,649,600
Operating expenses		1,210,200	1,180,100
Operating profit (loss)		445,700	469,500
Business Segment [Member] | Customer Business [Member] | BK and TB [Member]
Business segment information
Net revenue	[1]	726,100	740,000
Net interest income		366,300	363,600
Net fees		321,400	333,900
Other		38,400	42,500
Business Segment [Member] | Customer Business [Member] | Other than BK and TB [Member]
Business segment information
Net revenue		929,800	909,600
Business Segment [Member] | Customer Business [Member] | Retail & Commercial Banking Business Group [Member]
Business segment information
Net revenue		731,900	754,100
Operating expenses		594,000	608,100
Operating profit (loss)		137,900	146,000
Business Segment [Member] | Customer Business [Member] | Retail & Commercial Banking Business Group [Member] | BK and TB [Member]
Business segment information
Net revenue	[1]	352,100	361,900
Net interest income		225,800	232,100
Net fees		111,600	114,200
Other		14,700	15,600
Business Segment [Member] | Customer Business [Member] | Retail & Commercial Banking Business Group [Member] | Other than BK and TB [Member]
Business segment information
Net revenue		379,800	392,200
Business Segment [Member] | Customer Business [Member] | Japanese Corporate & Investment Banking Business Group [Member]
Business segment information
Net revenue		265,000	261,600
Operating expenses		156,200	151,200
Operating profit (loss)		108,800	110,400
Business Segment [Member] | Customer Business [Member] | Japanese Corporate & Investment Banking Business Group [Member] | BK and TB [Member]
Business segment information
Net revenue	[1]	200,400	199,900
Net interest income		83,000	75,500
Net fees		92,600	97,700
Other		24,800	26,700
Business Segment [Member] | Customer Business [Member] | Japanese Corporate & Investment Banking Business Group [Member] | Other than BK and TB [Member]
Business segment information
Net revenue		64,600	61,700
Business Segment [Member] | Customer Business [Member] | Global Corporate & Investment Banking Business Group [Member]
Business segment information
Net revenue		186,400	193,700
Operating expenses		120,500	121,300
Operating profit (loss)		65,900	72,400
Business Segment [Member] | Customer Business [Member] | Global Corporate & Investment Banking Business Group [Member] | BK and TB [Member]
Business segment information
Net revenue	[1]	128,500	130,000
Net interest income		56,300	56,800
Net fees		72,400	73,000
Other		(200)	200
Business Segment [Member] | Customer Business [Member] | Global Corporate & Investment Banking Business Group [Member] | Other than BK and TB [Member]
Business segment information
Net revenue		57,900	63,700
Business Segment [Member] | Customer Business [Member] | Global Commercial Banking Business Group [Member]
Business segment information
Net revenue		371,300	335,800
Operating expenses		274,200	238,900
Operating profit (loss)		97,100	96,900
Business Segment [Member] | Customer Business [Member] | Global Commercial Banking Business Group [Member] | BK and TB [Member]
Business segment information
Net revenue	[1]	(500)	(800)
Net interest income		400	(800)
Net fees
Other		(900)
Business Segment [Member] | Customer Business [Member] | Global Commercial Banking Business Group [Member] | Other than BK and TB [Member]
Business segment information
Net revenue		371,800	336,600
Business Segment [Member] | Customer Business [Member] | Asset Management & Investor Services Business Group [Member]
Business segment information
Net revenue		101,300	104,400
Operating expenses		65,300	60,600
Operating profit (loss)		36,000	43,800
Business Segment [Member] | Customer Business [Member] | Asset Management & Investor Services Business Group [Member] | BK and TB [Member]
Business segment information
Net revenue	[1]	45,600	49,000
Net interest income		800
Net fees		44,800	49,000
Other
Business Segment [Member] | Customer Business [Member] | Asset Management & Investor Services Business Group [Member] | Other than BK and TB [Member]
Business segment information
Net revenue		55,700	55,400
Business Segment [Member] | Global Markets Business Group [Member]
Business segment information
Net revenue		323,600	260,300
Operating expenses		112,900	114,100
Operating profit (loss)		210,700	146,200
Business Segment [Member] | Global Markets Business Group [Member] | BK and TB [Member]
Business segment information
Net revenue	[1]	226,900	165,700
Net interest income		66,700	128,500
Net fees		(6,300)	(9,100)
Other		166,500	46,300
Business Segment [Member] | Global Markets Business Group [Member] | Other than BK and TB [Member]
Business segment information
Net revenue		96,700	94,600
Business Segment, Other [Member]
Business segment information
Net revenue		36,700	24,300
Operating expenses		70,800	69,500
Operating profit (loss)		(34,100)	(45,200)
Business Segment, Other [Member] | BK and TB [Member]
Business segment information
Net revenue	[1]	62,800	109,600
Net interest income		57,600	167,100
Net fees		(23,800)	(23,400)
Other		29,000	(34,100)
Business Segment, Other [Member] | Other than BK and TB [Member]
Business segment information
Net revenue		¥ (26,100)	¥ (85,300)
[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.

Business Segments (Reconciliati

Business Segments (Reconciliation of Operating Profit (Loss) from Segments to Condensed Consolidated Statements of Income) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	¥ 622,300	¥ 570,500
Reversal of (provision for) credit losses	(102,121)	71,060
Foreign exchange losses—net	(108,687)	(99,407)
Trading account profits (losses)—net	547,299	(332,431)
Equity in earnings of equity method investees—net	165,487	140,014
Impairment of goodwill	(241,356)
Income before income tax expense	838,492	695,767
Reconciliation [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	622,000	571,000
Reversal of (provision for) credit losses	(102,000)	71,000
Foreign exchange losses—net	(32,000)	(43,000)
Trading account profits (losses)—net	505,000	(330,000)
Equity investment securities gains (losses)—net	(26,000)	391,000
Debt investment securities gains (losses)—net	(136,000)	14,000
Equity in earnings of equity method investees—net	165,000	140,000
Impairment of goodwill	(241,000)
Reversal of (provision for) off-balance sheet credit instruments	63,000	(42,000)
Other—net	20,000	(76,000)
Income before income tax expense	¥ 838,000	¥ 696,000

Fair Value (Assets and Liabilit

Fair Value (Assets and Liabilities Measured at Fair Value by Level on Recurring Basis) (Detail) - JPY (¥) ¥ in Millions		Sep. 30, 2019		Mar. 31, 2019
Assets:
Trading account assets, Trading derivative assets	[1],[2],[3]	¥ 14,975,000		¥ 13,205,000
Investment securities, Available-for-sale debt securities		31,647,120		33,518,503
Equity securities		6,893,247		6,977,600
Liabilities:
Trading account liabilities, Trading derivative liabilities	[1],[2],[3]	14,182,000		12,710,000
Obligation to return securities received as collateral		3,391,000		3,087,000
Interest Rate Contracts [Member]
Assets:
Trading account assets, Trading derivative assets	[1],[2],[3]	11,734,000		10,109,000
Liabilities:
Trading account liabilities, Trading derivative liabilities	[1],[2],[3]	11,217,000		9,896,000
Foreign Exchange Contracts [Member]
Assets:
Trading account assets, Trading derivative assets	[1],[2],[3]	2,968,000		2,795,000
Liabilities:
Trading account liabilities, Trading derivative liabilities	[1],[2],[3]	2,776,000		2,671,000
Equity Contracts [Member]
Assets:
Trading account assets, Trading derivative assets	[1],[2],[3]	149,000		188,000
Liabilities:
Trading account liabilities, Trading derivative liabilities	[1],[2],[3]	189,000		183,000
Commodity Contracts [Member]
Assets:
Trading account assets, Trading derivative assets	[1],[2],[3]	28,000		27,000
Liabilities:
Trading account liabilities, Trading derivative liabilities	[1],[2],[3]	26,000		27,000
Credit Derivatives [Member]
Assets:
Trading account assets, Trading derivative assets	[1],[2],[3]	95,000		84,000
Liabilities:
Trading account liabilities, Trading derivative liabilities	[1],[2],[3]	84,000		69,000
Japanese National Government and Japanese Government Agency Bonds [Member]
Assets:
Investment securities, Available-for-sale debt securities		21,694,828		24,077,696
Japanese Prefectural and Municipal Bonds [Member]
Assets:
Investment securities, Available-for-sale debt securities		2,560,514		2,226,566
Foreign Government and Official Institution Bonds [Member]
Assets:
Investment securities, Available-for-sale debt securities		2,702,361		2,641,419
Corporate Bonds [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,217,712		1,130,731
Residential Mortgage-backed Securities [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,657,903		1,615,351
Commercial Mortgage-backed Securities [Member]
Assets:
Investment securities, Available-for-sale debt securities		168,314		130,955
Asset-backed Securities [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,492,703		1,502,922
Other Debt Securities [Member]
Assets:
Investment securities, Available-for-sale debt securities		152,785	[4]	192,863	[5]
Fair Value, Measurements, Recurring [Member]
Assets:
Trading account assets, Trading securities	[6]	28,548,762		27,331,733
Trading account assets, Trading derivative assets		14,974,098		13,204,485
Investment securities, Available-for-sale debt securities		31,647,120		33,518,503
Equity securities		6,153,694		6,386,363
Others	[7]	624,679		881,755
Assets at fair value, Total		81,948,353		81,322,839
Liabilities:
Trading account liabilities, Trading securities sold, not yet purchased		388,139		162,910
Trading account liabilities, Trading derivative liabilities		14,290,833		12,846,582
Obligation to return securities received as collateral		3,391,083		3,087,026
Others	[8]	504,495		492,016
Liabilities at fair value, Total		18,574,550		16,588,534
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Assets:
Trading account assets, Trading securities	[6]	14,173,666		12,821,328
Trading account assets, Trading derivative assets		87,912		63,582
Investment securities, Available-for-sale debt securities		20,077,993		22,550,086
Equity securities		5,517,963		5,982,629
Others	[7]	548,359		807,193
Assets at fair value, Total		40,405,893		42,224,818
Liabilities:
Trading account liabilities, Trading securities sold, not yet purchased		382,820		157,114
Trading account liabilities, Trading derivative liabilities		138,690		88,329
Obligation to return securities received as collateral		3,276,784		2,912,355
Liabilities at fair value, Total		3,798,294		3,157,798
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities	[6]	13,692,234		13,725,079
Trading account assets, Trading derivative assets		14,775,434		13,047,590
Investment securities, Available-for-sale debt securities		11,315,256		10,684,983
Equity securities		601,333		375,914
Others	[7]	18,179		42,184
Assets at fair value, Total		40,402,436		37,875,750
Liabilities:
Trading account liabilities, Trading securities sold, not yet purchased		5,319		5,796
Trading account liabilities, Trading derivative liabilities		14,096,679		12,701,110
Obligation to return securities received as collateral		114,299		174,671
Others	[8]	465,392		426,368
Liabilities at fair value, Total		14,681,689		13,307,945
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading securities	[6]	682,862		785,326
Trading account assets, Trading derivative assets		110,752		93,313
Investment securities, Available-for-sale debt securities		253,871		283,434
Equity securities		34,398		27,820
Others	[7]	58,141		32,378
Assets at fair value, Total		1,140,024		1,222,271
Liabilities:
Trading account liabilities, Trading derivative liabilities		55,464		57,143
Others	[8]	39,103		65,648
Liabilities at fair value, Total		94,567		122,791
Fair Value, Measurements, Recurring [Member] | Interest Rate Contracts [Member]
Assets:
Trading account assets, Trading derivative assets		11,733,667		10,108,456
Liabilities:
Trading account liabilities, Trading derivative liabilities		11,216,961		9,896,293
Fair Value, Measurements, Recurring [Member] | Interest Rate Contracts [Member] | Level 1 [Member]
Assets:
Trading account assets, Trading derivative assets		37,296		23,430
Liabilities:
Trading account liabilities, Trading derivative liabilities		46,311		35,179
Fair Value, Measurements, Recurring [Member] | Interest Rate Contracts [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading derivative assets		11,674,714		10,067,719
Liabilities:
Trading account liabilities, Trading derivative liabilities		11,156,041		9,839,618
Fair Value, Measurements, Recurring [Member] | Interest Rate Contracts [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading derivative assets		21,657		17,307
Liabilities:
Trading account liabilities, Trading derivative liabilities		14,609		21,496
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contracts [Member]
Assets:
Trading account assets, Trading derivative assets		2,966,902		2,795,091
Liabilities:
Trading account liabilities, Trading derivative liabilities		2,772,920		2,670,650
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contracts [Member] | Level 1 [Member]
Assets:
Trading account assets, Trading derivative assets		2,456		1,115
Liabilities:
Trading account liabilities, Trading derivative liabilities		4,477		2,633
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contracts [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading derivative assets		2,912,812		2,771,115
Liabilities:
Trading account liabilities, Trading derivative liabilities		2,762,772		2,663,347
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contracts [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading derivative assets		51,634		22,861
Liabilities:
Trading account liabilities, Trading derivative liabilities		5,671		4,670
Fair Value, Measurements, Recurring [Member] | Equity Contracts [Member]
Assets:
Trading account assets, Trading derivative assets		149,340		187,703
Liabilities:
Trading account liabilities, Trading derivative liabilities		189,499		183,392
Fair Value, Measurements, Recurring [Member] | Equity Contracts [Member] | Level 1 [Member]
Assets:
Trading account assets, Trading derivative assets		48,160		39,037
Liabilities:
Trading account liabilities, Trading derivative liabilities		87,902		50,517
Fair Value, Measurements, Recurring [Member] | Equity Contracts [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading derivative assets		93,103		139,666
Liabilities:
Trading account liabilities, Trading derivative liabilities		91,702		126,737
Fair Value, Measurements, Recurring [Member] | Equity Contracts [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading derivative assets		8,077		9,000
Liabilities:
Trading account liabilities, Trading derivative liabilities		9,895		6,138
Fair Value, Measurements, Recurring [Member] | Commodity Contracts [Member]
Assets:
Trading account assets, Trading derivative assets		29,099		29,411
Liabilities:
Trading account liabilities, Trading derivative liabilities		27,021		27,651
Fair Value, Measurements, Recurring [Member] | Commodity Contracts [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading derivative assets		3,331		3,727
Liabilities:
Trading account liabilities, Trading derivative liabilities		1,823		2,916
Fair Value, Measurements, Recurring [Member] | Commodity Contracts [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading derivative assets		25,768		25,684
Liabilities:
Trading account liabilities, Trading derivative liabilities		25,198		24,735
Fair Value, Measurements, Recurring [Member] | Credit Derivatives [Member]
Assets:
Trading account assets, Trading derivative assets		95,090		83,824
Liabilities:
Trading account liabilities, Trading derivative liabilities		84,432		68,596
Fair Value, Measurements, Recurring [Member] | Credit Derivatives [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading derivative assets		91,474		65,363
Liabilities:
Trading account liabilities, Trading derivative liabilities		84,341		68,492
Fair Value, Measurements, Recurring [Member] | Credit Derivatives [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading derivative assets		3,616		18,461
Liabilities:
Trading account liabilities, Trading derivative liabilities		91		104
Fair Value, Measurements, Recurring [Member] | Japanese National Government and Japanese Government Agency Bonds [Member]
Assets:
Investment securities, Available-for-sale debt securities		21,694,828		24,077,696
Fair Value, Measurements, Recurring [Member] | Japanese National Government and Japanese Government Agency Bonds [Member] | Level 1 [Member]
Assets:
Investment securities, Available-for-sale debt securities		18,189,416		20,635,872
Fair Value, Measurements, Recurring [Member] | Japanese National Government and Japanese Government Agency Bonds [Member] | Level 2 [Member]
Assets:
Investment securities, Available-for-sale debt securities		3,505,412		3,441,824
Fair Value, Measurements, Recurring [Member] | Japanese Prefectural and Municipal Bonds [Member]
Assets:
Investment securities, Available-for-sale debt securities		2,560,514		2,226,566
Fair Value, Measurements, Recurring [Member] | Japanese Prefectural and Municipal Bonds [Member] | Level 2 [Member]
Assets:
Investment securities, Available-for-sale debt securities		2,560,514		2,226,566
Fair Value, Measurements, Recurring [Member] | Foreign Government and Official Institution Bonds [Member]
Assets:
Investment securities, Available-for-sale debt securities		2,702,361		2,641,419
Fair Value, Measurements, Recurring [Member] | Foreign Government and Official Institution Bonds [Member] | Level 1 [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,888,577		1,914,214
Fair Value, Measurements, Recurring [Member] | Foreign Government and Official Institution Bonds [Member] | Level 2 [Member]
Assets:
Investment securities, Available-for-sale debt securities		799,782		707,959
Fair Value, Measurements, Recurring [Member] | Foreign Government and Official Institution Bonds [Member] | Level 3 [Member]
Assets:
Investment securities, Available-for-sale debt securities		14,002		19,246
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,217,712		1,130,731
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Level 2 [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,211,976		1,126,535
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Level 3 [Member]
Assets:
Investment securities, Available-for-sale debt securities		5,736		4,196
Fair Value, Measurements, Recurring [Member] | Residential Mortgage-backed Securities [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,657,903		1,615,351
Fair Value, Measurements, Recurring [Member] | Residential Mortgage-backed Securities [Member] | Level 2 [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,657,888		1,615,336
Fair Value, Measurements, Recurring [Member] | Residential Mortgage-backed Securities [Member] | Level 3 [Member]
Assets:
Investment securities, Available-for-sale debt securities		15		15
Fair Value, Measurements, Recurring [Member] | Commercial Mortgage-backed Securities [Member]
Assets:
Investment securities, Available-for-sale debt securities		168,314		130,955
Fair Value, Measurements, Recurring [Member] | Commercial Mortgage-backed Securities [Member] | Level 2 [Member]
Assets:
Investment securities, Available-for-sale debt securities		166,251		128,917
Fair Value, Measurements, Recurring [Member] | Commercial Mortgage-backed Securities [Member] | Level 3 [Member]
Assets:
Investment securities, Available-for-sale debt securities		2,063		2,038
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,492,703		1,502,922
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities [Member] | Level 2 [Member]
Assets:
Investment securities, Available-for-sale debt securities		1,361,823		1,371,467
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities [Member] | Level 3 [Member]
Assets:
Investment securities, Available-for-sale debt securities		130,880		131,455
Fair Value, Measurements, Recurring [Member] | Other Debt Securities [Member]
Assets:
Investment securities, Available-for-sale debt securities		152,785		192,863
Fair Value, Measurements, Recurring [Member] | Other Debt Securities [Member] | Level 2 [Member]
Assets:
Investment securities, Available-for-sale debt securities		51,610		66,379
Fair Value, Measurements, Recurring [Member] | Other Debt Securities [Member] | Level 3 [Member]
Assets:
Investment securities, Available-for-sale debt securities		101,175		126,484
Fair Value, Measurements, Recurring [Member] | Marketable Equity Securities [Member]
Assets:
Equity securities		6,119,296		6,358,543
Fair Value, Measurements, Recurring [Member] | Marketable Equity Securities [Member] | Level 1 [Member]
Assets:
Equity securities		5,517,963		5,982,629
Fair Value, Measurements, Recurring [Member] | Marketable Equity Securities [Member] | Level 2 [Member]
Assets:
Equity securities		601,333		375,914
Fair Value, Measurements, Recurring [Member] | Nonmarketable Equity Securities [Member]
Assets:
Equity securities	[9]	34,398		27,820
Fair Value, Measurements, Recurring [Member] | Nonmarketable Equity Securities [Member] | Real Estate Funds [Member]
Assets:
Investments valued at net asset value		19,954		17,583
Unfunded commitments		2,047		2,054
Fair Value, Measurements, Recurring [Member] | Nonmarketable Equity Securities [Member] | Private Funds [Member]
Assets:
Investments valued at net asset value		9,797		9,921
Unfunded commitments
Fair Value, Measurements, Recurring [Member] | Nonmarketable Equity Securities [Member] | Private Equity Funds [Member]
Assets:
Investments valued at net asset value		9,168
Unfunded commitments
Fair Value, Measurements, Recurring [Member] | Nonmarketable Equity Securities [Member] | Level 3 [Member]
Assets:
Equity securities	[9]	34,398		27,820
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Japanese National Government and Japanese Government Agency Bonds [Member]
Assets:
Trading account assets, Trading securities		3,511,800		2,629,975
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Japanese National Government and Japanese Government Agency Bonds [Member] | Level 1 [Member]
Assets:
Trading account assets, Trading securities		3,020,794		2,117,841
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Japanese National Government and Japanese Government Agency Bonds [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities		491,006		512,134
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Japanese Prefectural and Municipal Bonds [Member]
Assets:
Trading account assets, Trading securities		113,830		117,799
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Japanese Prefectural and Municipal Bonds [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities		113,830		117,799
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Foreign Government and Official Institution Bonds [Member]
Assets:
Trading account assets, Trading securities		10,014,820		9,719,185
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Foreign Government and Official Institution Bonds [Member] | Level 1 [Member]
Assets:
Trading account assets, Trading securities		9,518,196		9,264,028
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Foreign Government and Official Institution Bonds [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities		493,023		454,365
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Foreign Government and Official Institution Bonds [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading securities		3,601		792
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Corporate Bonds [Member]
Assets:
Trading account assets, Trading securities		2,910,706		3,234,969
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Corporate Bonds [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities		2,874,588		3,203,585
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Corporate Bonds [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading securities		36,118		31,384
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Residential Mortgage-backed Securities [Member]
Assets:
Trading account assets, Trading securities		6,330,987		7,073,534
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Residential Mortgage-backed Securities [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities		6,319,014		7,038,353
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Residential Mortgage-backed Securities [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading securities		11,973		35,181
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Commercial Mortgage-backed Securities [Member]
Assets:
Trading account assets, Trading securities		811
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Commercial Mortgage-backed Securities [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities		811
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Asset-backed Securities [Member]
Assets:
Trading account assets, Trading securities		945,924		880,952
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Asset-backed Securities [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities		409,497		253,274
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Asset-backed Securities [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading securities		536,427		627,678
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Other Debt Securities [Member]
Assets:
Trading account assets, Trading securities		50,284		35,895
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Other Debt Securities [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities		16,088		747
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Other Debt Securities [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading securities		34,196		35,148
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Commercial Paper [Member]
Assets:
Trading account assets, Trading securities		2,044,252		1,473,693
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Commercial Paper [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities		2,044,252		1,473,693
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Assets:
Trading account assets, Trading securities	[10]	2,625,348		2,165,731
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Private Equity Funds [Member]
Assets:
Investments valued at net asset value		52,259		40,400
Unfunded commitments		101,730		94,483
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Level 1 [Member]
Assets:
Trading account assets, Trading securities	[10]	1,634,676		1,439,459
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Level 2 [Member]
Assets:
Trading account assets, Trading securities	[10]	930,125		671,129
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Level 3 [Member]
Assets:
Trading account assets, Trading securities	[10]	¥ 60,547		¥ 55,143
[1]	For more information about fair value measurement and assumptions used to measure the fair value of derivatives, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.
[2]	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.
[3]	This table does not include contracts with embedded derivatives for which the fair value option has been elected.
[4]	Other debt securities in the table above mainly include ¥87,626 million of private placement debt conduit bonds.
[5]	Other debt securities in the table above mainly include ¥112,822 million of private placement debt conduit bonds.
[6]	Includes securities measured under the fair value option.
[7]	Mainly comprises 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 derivative assets designated as hedging instruments.
[8]	Includes other short-term borrowings, long-term debt, bifurcated embedded derivatives carried at fair value and derivative liabilities designated as hedging instruments.
[9]	Excludes certain investments valued at net asset value of real estate funds, private funds, and private equity funds whose fair values at March 31, 2019 were ¥17,583 million, ¥9,921 million and nil respectively, and those at September 30, 2019 were ¥19,954 million, ¥9,797 million and ¥9,168 million, respectively. The amounts of unfunded commitments related to these real estate funds, private funds and private equity funds at March 31, 2019 were ¥2,054 million, nil and nil respectively, and those at September 30, 2019 were ¥2,047 million, nil and nil, respectively. For the nature and details of these investments, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.
[10]	Excludes certain investments valued at net asset value of private equity funds whose fair values at March 31, 2019 were ¥40,400 million and those at September 30, 2019 were ¥52,259 million, respectively. The amounts of unfunded commitments related to these private equity funds at March 31, 2019 were ¥94,483 million, and those at September 30, 2019 were ¥101,730 million, respectively. For the nature and details of these investments, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.

Fair Value (Reconciliation of A

Fair Value (Reconciliation of Assets and Liabilities Measured at Fair Value on Recurring Basis Using Level 3 Inputs) (Detail) - Fair Value, Measurements, Recurring [Member] - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019		Sep. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		¥ 1,165,128		¥ 1,227,291
Total gains (losses) for the period included in earnings, Assets		(20,234)		52,777
Total gains (losses) for the period included in other comprehensive income, Assets		(7,218)		(9,623)
Purchases, Assets		310,813		417,649
Issues, Assets		(773)		(429)
Sales, Assets		(122,068)		(178,314)
Settlements, Assets		(290,028)		(396,550)
Transfers into Level 3, Assets		67,885		28,556
Transfers out of Level 3, Assets		(18,945)		(6,857)
Level 3 assets, Ending balance		1,084,560		1,134,500
Change in unrealized gains (losses) included in earnings for assets still held at period end		(24,443)		31,963
Level 3 liabilities, Beginning balance		65,648		(25,528)
Total gains (losses) for the period included in earnings, Liabilities		(18,504)		(5,160)
Total gains (losses) for the period included in other comprehensive income, Liabilities		1,807		2,262
Purchases, Liabilities
Issues, Liabilities		2,338		848
Sales, Liabilities
Settlements, Liabilities		(9,708)		(11,902)
Transfers into Level 3, Liabilities		1,171		14,454
Transfers out of Level 3, Liabilities		(37,043)		24,235
Level 3 liabilities, Ending balance		39,103		5,005
Change in unrealized gains (losses) included in earnings for liabilities still held at period end		(16,212)		(1,049)
Others [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 liabilities, Beginning balance		65,648		(25,528)
Total gains (losses) for the period included in earnings, Liabilities	[1]	(18,504)		(5,160)
Total gains (losses) for the period included in other comprehensive income, Liabilities		1,807		2,262
Issues, Liabilities		2,338		848
Settlements, Liabilities		(9,708)		(11,902)
Transfers into Level 3, Liabilities	[2]	1,171		14,454
Transfers out of Level 3, Liabilities	[2]	(37,043)		24,235
Level 3 liabilities, Ending balance		39,103		5,005
Change in unrealized gains (losses) included in earnings for liabilities still held at period end	[1]	(16,212)		(1,049)
Trading Account Assets, Trading Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance	[3]	785,326		827,493
Total gains (losses) for the period included in earnings, Assets	[3],[4]	(20,158)		42,948
Purchases, Assets	[3]	134,609		274,937
Sales, Assets	[3]	(120,505)		(177,306)
Settlements, Assets	[3]	(105,890)		(181,133)
Transfers into Level 3, Assets	[3]	24,882		4,532
Transfers out of Level 3, Assets	[3]	(15,402)		(15,067)
Level 3 assets, Ending balance	[3]	682,862		776,404
Change in unrealized gains (losses) included in earnings for assets still held at period end	[3],[4]	(19,011)		40,167
Trading Account Assets, Trading Securities, Debt Securities [Member] | Foreign Government and Official Institution Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		792		1,047
Total gains (losses) for the period included in earnings, Assets		347		214
Purchases, Assets		50,548		40,600
Sales, Assets		(48,068)		(40,710)
Settlements, Assets		(18)		(16)
Level 3 assets, Ending balance		3,601		1,135
Change in unrealized gains (losses) included in earnings for assets still held at period end		(11)		6
Trading Account Assets, Trading Securities, Debt Securities [Member] | Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		31,384		23,092
Total gains (losses) for the period included in earnings, Assets		(76)		682
Purchases, Assets				729
Sales, Assets		(1,049)		(193)
Settlements, Assets		(3,621)		(1,375)
Transfers into Level 3, Assets	[5]	24,882		4,532
Transfers out of Level 3, Assets	[5]	(15,402)		(15,067)
Level 3 assets, Ending balance		36,118		12,400
Change in unrealized gains (losses) included in earnings for assets still held at period end		6		642
Trading Account Assets, Trading Securities, Debt Securities [Member] | Residential Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		35,181		41,141
Total gains (losses) for the period included in earnings, Assets		(1,425)		667
Sales, Assets		(11,134)
Settlements, Assets		(10,649)		(3,072)
Level 3 assets, Ending balance		11,973		38,736
Change in unrealized gains (losses) included in earnings for assets still held at period end		(1,109)		636
Trading Account Assets, Trading Securities, Debt Securities [Member] | Asset-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		627,678		684,637
Total gains (losses) for the period included in earnings, Assets		(20,780)		38,155
Purchases, Assets		79,717		216,109
Sales, Assets		(60,249)		(136,388)
Settlements, Assets		(89,939)		(175,579)
Level 3 assets, Ending balance		536,427		626,934
Change in unrealized gains (losses) included in earnings for assets still held at period end		(18,740)		36,181
Trading Account Assets, Trading Securities, Debt Securities [Member] | Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		35,148		33,450
Total gains (losses) for the period included in earnings, Assets		(952)		2,346
Level 3 assets, Ending balance		34,196		35,796
Change in unrealized gains (losses) included in earnings for assets still held at period end		(952)		2,346
Trading Account Assets, Trading Securities, Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		55,143		44,126
Total gains (losses) for the period included in earnings, Assets		2,728		884
Purchases, Assets		4,344		17,499
Sales, Assets		(5)		(15)
Settlements, Assets		(1,663)		(1,091)
Level 3 assets, Ending balance		60,547		61,403
Change in unrealized gains (losses) included in earnings for assets still held at period end		1,795		356
Trading Account Assets, Trading Derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		36,170		12,119
Total gains (losses) for the period included in earnings, Assets	[4]	4,283		3,739
Total gains (losses) for the period included in other comprehensive income, Assets		(107)		(545)
Purchases, Assets		99		582
Issues, Assets		(773)		(429)
Settlements, Assets		(21,616)		(34,413)
Transfers into Level 3, Assets		37,553		23,922
Transfers out of Level 3, Assets		(321)		8,424
Level 3 assets, Ending balance		55,288		13,399
Change in unrealized gains (losses) included in earnings for assets still held at period end	[4]	1,797		(7,391)
Trading Account Assets, Trading Derivatives [Member] | Interest Rate Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		(4,189)		14,596
Total gains (losses) for the period included in earnings, Assets		14,185		2,127
Total gains (losses) for the period included in other comprehensive income, Assets		(113)		(134)
Issues, Assets				(94)
Settlements, Assets		(5,471)		(18,154)
Transfers into Level 3, Assets		2,976		311
Transfers out of Level 3, Assets		(340)		(1,798)
Level 3 assets, Ending balance		7,048		(3,146)
Change in unrealized gains (losses) included in earnings for assets still held at period end		6,246		2,256
Trading Account Assets, Trading Derivatives [Member] | Foreign Exchange Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		18,191		6,736
Total gains (losses) for the period included in earnings, Assets		(10,614)		(12,064)
Total gains (losses) for the period included in other comprehensive income, Assets		(87)		(262)
Purchases, Assets		3		18
Settlements, Assets		4,037		(2,614)
Transfers into Level 3, Assets	[5]	34,577		23,611
Transfers out of Level 3, Assets		(144)		(2,863)
Level 3 assets, Ending balance		45,963		12,562
Change in unrealized gains (losses) included in earnings for assets still held at period end		(5,580)		(11,544)
Trading Account Assets, Trading Derivatives [Member] | Equity Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		2,862		(10,685)
Total gains (losses) for the period included in earnings, Assets		743		13,488
Total gains (losses) for the period included in other comprehensive income, Assets		87		(153)
Purchases, Assets		96
Issues, Assets		(419)
Settlements, Assets		(5,350)		(13,690)
Transfers out of Level 3, Assets		163		13,085	[5]
Level 3 assets, Ending balance		(1,818)		2,045
Change in unrealized gains (losses) included in earnings for assets still held at period end		703		964
Trading Account Assets, Trading Derivatives [Member] | Commodity Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		949		683
Total gains (losses) for the period included in earnings, Assets		(27)		156
Total gains (losses) for the period included in other comprehensive income, Assets		2		4
Purchases, Assets				564
Issues, Assets		(354)		(335)
Settlements, Assets				(1)
Level 3 assets, Ending balance		570		1,071
Change in unrealized gains (losses) included in earnings for assets still held at period end		645		900
Trading Account Assets, Trading Derivatives [Member] | Credit Derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		18,357		789
Total gains (losses) for the period included in earnings, Assets		(4)		32
Total gains (losses) for the period included in other comprehensive income, Assets		4
Settlements, Assets		(14,832)		46
Level 3 assets, Ending balance		3,525		867
Change in unrealized gains (losses) included in earnings for assets still held at period end		(217)		33
Investment Securities, Available-for-sale Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		283,434		350,660
Total gains (losses) for the period included in earnings, Assets	[6]	1,331		6,323
Total gains (losses) for the period included in other comprehensive income, Assets		(5,379)		(9,056)
Purchases, Assets		134,575		131,326
Settlements, Assets		(162,520)		(181,004)
Transfers into Level 3, Assets		5,450		102
Transfers out of Level 3, Assets		(3,020)		(89)
Level 3 assets, Ending balance		253,871		298,262
Change in unrealized gains (losses) included in earnings for assets still held at period end	[6]	(619)		(83)
Investment Securities, Available-for-sale Debt Securities [Member] | Foreign Government and Official Institution Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		19,246		20,192
Total gains (losses) for the period included in other comprehensive income, Assets		209		(1,002)
Purchases, Assets		382		242
Settlements, Assets		(5,835)		(487)
Level 3 assets, Ending balance		14,002		18,945
Investment Securities, Available-for-sale Debt Securities [Member] | Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		4,196		6,037
Total gains (losses) for the period included in earnings, Assets		(383)		4
Total gains (losses) for the period included in other comprehensive income, Assets		114		(3)
Purchases, Assets		20		1,670
Settlements, Assets		(641)		(5,318)
Transfers into Level 3, Assets		5,450	[5]	102
Transfers out of Level 3, Assets		(3,020)	[5]	(89)
Level 3 assets, Ending balance		5,736		2,403
Change in unrealized gains (losses) included in earnings for assets still held at period end		(619)		(83)
Investment Securities, Available-for-sale Debt Securities [Member] | Residential Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		15		15
Level 3 assets, Ending balance		15		15
Investment Securities, Available-for-sale Debt Securities [Member] | Commercial Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		2,038		2,430
Total gains (losses) for the period included in other comprehensive income, Assets		58		(104)
Settlements, Assets		(33)		(33)
Level 3 assets, Ending balance		2,063		2,293
Investment Securities, Available-for-sale Debt Securities [Member] | Asset-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		131,455		161,172
Total gains (losses) for the period included in earnings, Assets		1,714		6,319
Total gains (losses) for the period included in other comprehensive income, Assets		(3,914)		(2,806)
Purchases, Assets		134,169		129,400
Settlements, Assets		(132,544)		(163,469)
Level 3 assets, Ending balance		130,880		130,616
Investment Securities, Available-for-sale Debt Securities [Member] | Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		126,484		160,814
Total gains (losses) for the period included in other comprehensive income, Assets		(1,846)		(5,141)
Purchases, Assets		4		14
Settlements, Assets		(23,467)		(11,697)
Level 3 assets, Ending balance		101,175		143,990
Investment Securities, Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		27,820		28,359
Total gains (losses) for the period included in earnings, Assets	[6]	2,660		(1,199)
Purchases, Assets		5,636		2,203
Sales, Assets		(1,515)		(825)
Settlements, Assets		(1)
Transfers out of Level 3, Assets		(202)		(125)
Level 3 assets, Ending balance		34,398		28,413
Change in unrealized gains (losses) included in earnings for assets still held at period end	[6]	1,736		(1,602)
Investment Securities, Equity Securities [Member] | Nonmarketable Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		27,820		28,359
Total gains (losses) for the period included in earnings, Assets		2,660		(1,199)
Purchases, Assets		5,636		2,203
Sales, Assets		(1,515)		(825)
Settlements, Assets		(1)
Transfers out of Level 3, Assets		(202)		(125)
Level 3 assets, Ending balance		34,398		28,413
Change in unrealized gains (losses) included in earnings for assets still held at period end		1,736		(1,602)
Others [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Level 3 assets, Beginning balance		32,378		8,660
Total gains (losses) for the period included in earnings, Assets	[7]	(8,350)		966
Total gains (losses) for the period included in other comprehensive income, Assets		(1,732)		(22)
Purchases, Assets		35,894		8,601
Sales, Assets		(48)		(183)
Settlements, Assets		(1)
Level 3 assets, Ending balance		58,141		18,022
Change in unrealized gains (losses) included in earnings for assets still held at period end	[7]	¥ (8,346)		¥ 872
[1]	Included in Trading account profits (losses)—net.
[2]	Transfers into (out of) Level 3 for bifurcated embedded derivatives in Others 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.
[3]	Includes Trading securities measured under the fair value option.
[4]	Included in Trading account profits (losses)—net and in Foreign exchange losses—net.
[5]	Transfers into Level 3 for Foreign exchange contract were mainly caused by the valuation using certain unobservable input. Transfers into (out of) Level 3 for corporate bonds were mainly caused by the decrease (increase) in liquidity or the availability of the quoted prices provided by third-party venders and Equity contracts—net were mainly caused by the change of valuation model and the change cease using certain unobservable input.
[6]	Included in Investment securities gains—net.
[7]	Included in Fees and commissions income and Other non-interest income.

Fair Value (Quantitative Inform

Fair Value (Quantitative Information about Level 3 Fair Value Measurements) (Detail) - Fair Value, Measurements, Recurring [Member] - Level 3 [Member] ¥ in Millions		Sep. 30, 2019JPY (¥)yr	Mar. 31, 2019JPY (¥)yr
Interest Rate Contracts [Member] | Option Model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Fair value	[1]	¥ 6,775	¥ (4,189)
Interest Rate Contracts [Member] | Option Model [Member] | Probability of Default [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0	0
Interest Rate Contracts [Member] | Option Model [Member] | Probability of Default [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.113	0.120
Interest Rate Contracts [Member] | Option Model [Member] | Correlation Between Interest Rates [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.342	0.292
Interest Rate Contracts [Member] | Option Model [Member] | Correlation Between Interest Rates [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.583	0.513
Interest Rate Contracts [Member] | Option Model [Member] | Correlation Between Interest Rate and Foreign Exchange Rate [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.258	0.228
Interest Rate Contracts [Member] | Option Model [Member] | Correlation Between Interest Rate and Foreign Exchange Rate [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.600	0.600
Interest Rate Contracts [Member] | Option Model [Member] | Recovery Rate [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.410	0.410
Interest Rate Contracts [Member] | Option Model [Member] | Recovery Rate [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.480	0.480
Interest Rate Contracts [Member] | Option Model [Member] | Volatility [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0	0.110
Interest Rate Contracts [Member] | Option Model [Member] | Volatility [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		1	0.713
Foreign Exchange Contracts [Member] | Option Model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Fair value	[1]	¥ 45,967	¥ 18,198
Foreign Exchange Contracts [Member] | Option Model [Member] | Probability of Default [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0	0
Foreign Exchange Contracts [Member] | Option Model [Member] | Probability of Default [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.113	0.120
Foreign Exchange Contracts [Member] | Option Model [Member] | Correlation Between Interest Rates [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.350	0.350
Foreign Exchange Contracts [Member] | Option Model [Member] | Correlation Between Interest Rates [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.700	0.700
Foreign Exchange Contracts [Member] | Option Model [Member] | Correlation Between Interest Rate and Foreign Exchange Rate [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.139	0.148
Foreign Exchange Contracts [Member] | Option Model [Member] | Correlation Between Interest Rate and Foreign Exchange Rate [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.600	0.600
Foreign Exchange Contracts [Member] | Option Model [Member] | Correlation Between Underlying Assets [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.600	0.650
Foreign Exchange Contracts [Member] | Option Model [Member] | Recovery Rate [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.410	0.410
Foreign Exchange Contracts [Member] | Option Model [Member] | Recovery Rate [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.480	0.480
Foreign Exchange Contracts [Member] | Option Model [Member] | Volatility [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.081	0.097
Foreign Exchange Contracts [Member] | Option Model [Member] | Volatility [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.180	0.182
Equity Contracts [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Fair value	[1]	¥ 5,854	¥ 5,878
Equity Contracts [Member] | Discounted Cash Flow [Member] | Term of Litigation [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs | yr		0.6	1
Equity Contracts [Member] | Option Model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Fair value	[1]	¥ (7,097)	¥ (2,727)
Equity Contracts [Member] | Option Model [Member] | Correlation Between Underlying Assets [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.517	0.517
Equity Contracts [Member] | Option Model [Member] | Correlation Between Underlying Assets [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.820	0.820
Equity Contracts [Member] | Option Model [Member] | Volatility [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.122	0.210
Equity Contracts [Member] | Option Model [Member] | Volatility [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.300	0.300
Equity Contracts [Member] | Option Model [Member] | Correlation Between Foreign Exchange Rate and Equity [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.070	0.070
Equity Contracts [Member] | Option Model [Member] | Correlation Between Foreign Exchange Rate and Equity [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.582	0.641
Equity Contracts [Member] | Option Model [Member] | Correlation Between Equities [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.207	0.216
Equity Contracts [Member] | Option Model [Member] | Correlation Between Equities [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.737	0.803
Credit Derivatives [Member] | Internal Model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Fair value	[1]	¥ 1,735
Credit Derivatives [Member] | Internal Model [Member] | Correlation Between Interest Rate and Foreign Exchange Rate [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading derivatives-net, Significant unobservable inputs		0.339
Foreign Government and Official Institution Bonds [Member] | Return on Equity Method [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	[1]	¥ 14,002	¥ 19,246
Foreign Government and Official Institution Bonds [Member] | Return on Equity Method [Member] | Probability of Default [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.001	0
Foreign Government and Official Institution Bonds [Member] | Return on Equity Method [Member] | Probability of Default [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.013	0.004
Foreign Government and Official Institution Bonds [Member] | Return on Equity Method [Member] | Probability of Default [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.004	0.003
Foreign Government and Official Institution Bonds [Member] | Return on Equity Method [Member] | Recovery Rate [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.550	0.600
Foreign Government and Official Institution Bonds [Member] | Return on Equity Method [Member] | Recovery Rate [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.900	0.700
Foreign Government and Official Institution Bonds [Member] | Return on Equity Method [Member] | Recovery Rate [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.704	0.667
Foreign Government and Official Institution Bonds [Member] | Return on Equity Method [Member] | Market-required Return on Capital [Member]
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 [Member] | Return on Equity Method [Member] | Market-required Return on Capital [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.080
Foreign Government and Official Institution Bonds [Member] | Return on Equity Method [Member] | Market-required Return on Capital [Member] | Maximum [Member]
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 [Member] | Return on Equity Method [Member] | Market-required Return on Capital [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.100	0.100
Corporate Bonds [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	[1]	¥ 5,212
Corporate Bonds [Member] | Discounted Cash Flow [Member] | Probability of Default [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.072
Corporate Bonds [Member] | Discounted Cash Flow [Member] | Probability of Default [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.072
Corporate Bonds [Member] | Discounted Cash Flow [Member] | Recovery Rate [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.410
Corporate Bonds [Member] | Discounted Cash Flow [Member] | Recovery Rate [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.703
Corporate Bonds [Member] | Discounted Cash Flow [Member] | Recovery Rate [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.425
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	[1]	¥ 81,804	¥ 109,213
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member] | Probability of Default [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.012	0.012
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member] | Probability of Default [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.053	0.053
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member] | Probability of Default [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.050	0.050
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member] | Recovery Rate [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.600	0.600
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member] | Recovery Rate [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.760	0.760
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member] | Recovery Rate [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.677	0.672
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member] | Loan Price [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs			0.905
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member] | Loan Price [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs			1.003
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Discounted Cash Flow [Member] | Loan Price [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]		0.954
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	[1],[3]	¥ 504,203	¥ 587,577
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Asset Correlations [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[3]	0.100	0.100
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Asset Correlations [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2],[3]	0.100	0.100
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Discount Factor [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[3]	0.011	0.010
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Discount Factor [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[3]	0.015	0.012
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Discount Factor [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2],[3]	0.014	0.012
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Prepayment Rate [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[3]	0.163	0.227
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Prepayment Rate [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2],[3]	0.163	0.227
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Probability of Default [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[3]	0	0
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Probability of Default [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[3]	0.863	0.901
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Probability of Default [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2],[3],[4]
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Recovery Rate [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[3]	0.638	0.643
Residential Mortgage-backed Securities, Commercial Mortgage-backed Securities and Asset-backed Securities [Member] | Internal Model [Member] | Recovery Rate [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2],[3]	0.638	0.643
Other Debt Securities [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	[1]	¥ 34,196	¥ 35,148
Other Debt Securities [Member] | Discounted Cash Flow [Member] | Liquidity Premium [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.010	0.010
Other Debt Securities [Member] | Discounted Cash Flow [Member] | Liquidity Premium [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.024	0.024
Other Debt Securities [Member] | Discounted Cash Flow [Member] | Liquidity Premium [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.013	0.013
Other Debt Securities [Member] | Return on Equity Method [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Fair value	[1]	¥ 87,626	¥ 112,822
Other Debt Securities [Member] | Return on Equity Method [Member] | Probability of Default [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0	0
Other Debt Securities [Member] | Return on Equity Method [Member] | Probability of Default [Member] | Maximum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.250	0.250
Other Debt Securities [Member] | Return on Equity Method [Member] | Probability of Default [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.003	0.003
Other Debt Securities [Member] | Return on Equity Method [Member] | Recovery Rate [Member] | Minimum [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs		0.600	0.400
Other Debt Securities [Member] | Return on Equity Method [Member] | Recovery Rate [Member] | Maximum [Member]
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 [Member] | Return on Equity Method [Member] | Recovery Rate [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.796	0.780
Other Debt Securities [Member] | Return on Equity Method [Member] | Market-required Return on Capital [Member] | Minimum [Member]
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 [Member] | Return on Equity Method [Member] | Market-required Return on Capital [Member] | Maximum [Member]
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 [Member] | Return on Equity Method [Member] | Market-required Return on Capital [Member] | Weighted Average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading securities and Investment securities, Significant unobservable inputs	[2]	0.094	0.095
[1]	The fair value as of March 31, 2019 and September 30, 2019 excludes the fair value of investments valued using vendor prices.
[2]	Weighted averages are calculated by weighing each input by the relative fair value of the respective financial instruments.
[3]	For further detail of Internal model, refer to the last paragraph of “Trading Account Assets and Liabilities—Trading Account Securities” in Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.
[4]	See “Probability of default” in “Sensitivity to and range of unobservable inputs” in Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.

Fair Value (Carrying Value of A

Fair Value (Carrying Value of Assets Measured at Fair Value on Nonrecurring Basis by Level) (Detail) - Fair Value, Measurements, Nonrecurring [Member] - JPY (¥) ¥ in Millions		Sep. 30, 2019	Mar. 31, 2019
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	[1],[2]	¥ 9,774	¥ 84,987
Loans		272,506	262,438
Loans, Loans held for sale		75,319	77,506
Loans, Collateral dependent loans		197,187	184,932
Premises and equipment		13,595	35,352
Intangible assets		395	19,635
Other assets		76,505	196,058
Other assets, Investments in equity method investees	[1]	23,897	186,284
Other assets, Other		52,608	9,774
Assets at fair value, Total		372,775	598,470
Private Equity Funds and Limited Partnerships [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities valued at net asset value		3,230	8,866
Unfunded commitments related to investment securities valued at net asset value		12,176	12,242
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans		2,469	2,656
Loans, Collateral dependent loans		2,469	2,656
Other assets		17,986	136,528
Other assets, Investments in equity method investees	[1]	17,986	136,528
Assets at fair value, Total		20,455	139,184
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	[1],[2]	7,300	80,779
Loans		7,586	9,104
Loans, Collateral dependent loans		7,586	9,104
Other assets		43,905	49,756
Other assets, Investments in equity method investees	[1]		49,756
Other assets, Other	[3]	43,905
Assets at fair value, Total		58,791	139,639
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Investment securities	[1],[2]	2,474	4,208
Loans		262,451	250,678
Loans, Loans held for sale		75,319	77,506
Loans, Collateral dependent loans		187,132	173,172
Premises and equipment		13,595	35,352
Intangible assets		395	19,635
Other assets		14,614	9,774
Other assets, Investments in equity method investees	[1]	5,911
Other assets, Other		8,703	9,774
Assets at fair value, Total		¥ 293,529	¥ 319,647
[1]	Excludes certain investments valued at net asset value of ¥8,866 million and ¥3,230 million at March 31, 2019 and September 30, 2019, respectively. The unfunded commitments related to these investments are ¥12,242 million and ¥12,176 million at March 31, 2019 and September 30, 2019, respectively. These investments are in private equity funds. For the nature and details of private equity funds, see Note 32 to the consolidated financial statements for the fiscal year ended March 31, 2019.
[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]	Includes certain held for sale assets that are measured at fair value on a nonrecurring basis, including impairment.

Fair Value (Losses (Gains) Reco

Fair Value (Losses (Gains) Recorded as a Result of Changes in Fair Value Measured on a Nonrecurring Basis) (Detail) - JPY (¥) ¥ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	¥ 297,959	¥ 30,629
Investment Securities [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	2,193	(8,013)
Loans [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	30,664	23,727
Loans [Member] | Loans Held for Sale [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	8,468	3
Loans [Member] | Collateral Dependent Loans [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	22,196	23,724
Premises and Equipment [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	5,975	3,552
Intangible Assets [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	2,334	667
Goodwill [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	241,356
Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	15,437	10,696
Other Assets [Member] | Investments in Equity Method Investees [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	4,944	10,034
Other Assets [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Losses (gains) on change in fair value	¥ 10,493	¥ 662

Fair Value (Gains (Losses) Rela

Fair Value (Gains (Losses) Related to Instruments for which Fair Value Option was Elected) (Detail) - JPY (¥) ¥ in Millions		6 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Financial Liabilities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value		¥ (21,337)	¥ (7,937)
Financial Liabilities [Member] | Trading Account Profits (Losses) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value		(21,337)	(7,937)
Financial Liabilities [Member] | Other Short-term Borrowings [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	[1]	(778)	(1,446)
Financial Liabilities [Member] | Other Short-term Borrowings [Member] | Trading Account Profits (Losses) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	[1]	(778)	(1,446)
Financial Liabilities [Member] | Long-term Debt [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	[1]	(20,559)	(6,491)
Financial Liabilities [Member] | Long-term Debt [Member] | Trading Account Profits (Losses) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	[1]	(20,559)	(6,491)
Financial Assets [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value		(216,691)	481,527
Financial Assets [Member] | Trading Account Profits (Losses) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value		437,931	(157,359)
Financial Assets [Member] | Foreign Exchange Gains (Losses) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value		(654,622)	638,886
Financial Assets [Member] | Trading Account Securities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	[2]	(216,691)	481,527
Financial Assets [Member] | Trading Account Securities [Member] | Trading Account Profits (Losses) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	[2]	437,931	(157,359)
Financial Assets [Member] | Trading Account Securities [Member] | Foreign Exchange Gains (Losses) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) on changes in fair value	[2]	¥ (654,622)	¥ 638,886
[1]	Change in value attributable to the instrument-specific credit risk related to those financial liabilities are not material.
[2]	Excludes Danamon’s equity securities. See Note 2 for reference.

Fair Value (Differences between

Fair Value (Differences between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding) (Detail) - JPY (¥) ¥ in Millions	Sep. 30, 2019	Mar. 31, 2019
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining aggregate contractual amounts outstanding, Financial liabilities	¥ 319,736	¥ 358,730
Fair value, Financial liabilities	299,768	325,808
Fair value over (under) remaining aggregate contractual amounts outstanding, Financial liabilities	(19,968)	(32,922)
Long-term Debt [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining aggregate contractual amounts outstanding, Financial liabilities	319,736	358,730
Fair value, Financial liabilities	299,768	325,808
Fair value over (under) remaining aggregate contractual amounts outstanding, Financial liabilities	¥ (19,968)	¥ (32,922)

Fair Value (Summary of Carrying

Fair Value (Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments Not Carried at Fair Value on Recurring Basis on Balance Sheets by Level) (Detail) - JPY (¥) ¥ in Billions		Sep. 30, 2019	Mar. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying amounts of investments in equity method investees		¥ 2,286	¥ 2,487
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		34,248	33,924
Interest-earning deposits in other banks		39,080	40,647
Call loans and funds sold		1,048	1,110
Receivables under resale agreements		16,247	10,975
Receivables under securities borrowing transactions		2,874	2,759
Investment securities		4,220	4,442
Loans, net of allowance for credit losses	[1]	114,541	116,213
Other financial assets	[2]	7,976	7,455
Deposits, Non-interest-bearing		30,511	30,443
Deposits, Interest-bearing		167,672	168,846
Total deposits		198,183	199,289
Call money and funds purchased		2,296	2,450
Payables under repurchase agreements		26,616	25,225
Payables under securities lending transactions		1,111	913
Due to trust account and other short-term borrowings		10,082	9,177
Long-term debt		27,430	27,790
Other financial liabilities		6,912	6,781
Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		34,248	33,924
Interest-earning deposits in other banks		39,080	40,647
Call loans and funds sold		1,048	1,110
Receivables under resale agreements		16,247	10,975
Receivables under securities borrowing transactions		2,874	2,759
Investment securities		4,258	4,453
Loans, net of allowance for credit losses	[1]	115,593	117,064
Other financial assets	[2]	7,976	7,455
Deposits, Non-interest-bearing		30,511	30,443
Deposits, Interest-bearing		167,742	168,899
Total deposits		198,253	199,342
Call money and funds purchased		2,296	2,450
Payables under repurchase agreements		26,616	25,225
Payables under securities lending transactions		1,111	913
Due to trust account and other short-term borrowings		10,082	9,177
Long-term debt		27,802	27,968
Other financial liabilities		6,912	6,781
Estimated Fair Value [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		34,248	33,924
Investment securities		1,177	1,197
Loans, net of allowance for credit losses	[1]	2	3
Estimated Fair Value [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest-earning deposits in other banks		39,080	40,647
Call loans and funds sold		1,048	1,110
Receivables under resale agreements		16,247	10,975
Receivables under securities borrowing transactions		2,874	2,759
Investment securities		1,048	1,135
Loans, net of allowance for credit losses	[1]	254	247
Other financial assets	[2]	7,976	7,455
Deposits, Non-interest-bearing		30,511	30,443
Deposits, Interest-bearing		167,742	168,899
Total deposits		198,253	199,342
Call money and funds purchased		2,296	2,450
Payables under repurchase agreements		26,616	25,225
Payables under securities lending transactions		1,111	913
Due to trust account and other short-term borrowings		10,082	9,177
Long-term debt		27,802	27,968
Other financial liabilities		6,912	6,781
Estimated Fair Value [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities		2,033	2,121
Loans, net of allowance for credit losses	[1]	¥ 115,337	¥ 116,814
[1]	Includes loans held for sale and collateral dependent loans measured at fair value on a nonrecurring basis. Refer to “Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis” for the details of the level classification.
[2]	Excludes investments in equity method investees of ¥2,487 billion and ¥2,286 billion at March 31, 2019 and September 30, 2019, respectively.

Investments in Equity Method _3

Investments in Equity Method Investees (Summarized Operating Results of Morgan Stanley) (Detail) - Morgan Stanley [Member] - JPY (¥) ¥ in Billions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Equity Method Investment, Summarized Financial Information, Income and Loss
Net revenues	¥ 2,203	¥ 2,258
Total non-interest expenses	1,593	1,601
Income from continuing operations before income taxes	610	657
Net income applicable to Morgan Stanley	¥ 475	¥ 502

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Detail) - Subsequent Event [Member] ¥ / shares in Units, ¥ in Millions, € in Billions	Nov. 13, 2019JPY (¥)¥ / sharesshares	Dec. 23, 2019JPY (¥)shares	Jan. 27, 2020JPY (¥)	Nov. 18, 2019JPY (¥)	Nov. 18, 2019EUR (€)
MUFG Capital Finance 9 Limited [Member] | Non-cumulative and Non-dilutive Perpetual Preferred Securities [Member]
Subsequent Event [Line Items]
Non-dilutive perpetual preferred securities redeemed			¥ 240,000
MUFG Bank's Acquisition of DVB Bank SE's Aviation Finance Division [Member]
Subsequent Event [Line Items]
Aviation finance client lending portfolio transfer completed				¥ 480,000	€ 4
Common Stock [Member]
Subsequent Event [Line Items]
Dividends payable, amount per share | ¥ / shares	¥ 12.5
Dividends payable, total amount	¥ 161,991
Dividends payable, date to be paid	Dec. 5, 2019
Dividends payable, date of record	Sep. 30, 2019
Number of own shares repurchased | shares		85,775,400
Approximate repurchase amount in aggregate of own shares based on the discretionary dealing contract		¥ 50,000
Approximate percentage of shares allowed for repurchase over total number of outstanding shares	0.77%
Date of own shares to be cancelled	Jan. 20, 2020
Common Stock [Member] | Maximum [Member]
Subsequent Event [Line Items]
Number of shares allowed for repurchase | shares	100,000,000
Aggregate amount of shares allowed for repurchase	¥ 50,000