This element represents basis of Financial Statements.

No definition available.

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- Definition

Floor percentage of the corridor, which is defined for the amortization of net actuarial gains and losses that arise from differences between actual experience and assumptions, in order to amortize the differences over the average remaining service period of participating employees.

+ References

No definition available.

+ Details

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- Definition

The net cash inflow (outflow) in the total of due to trust account and other short-term borrowings classified as cash flows from financing activities.

+ References

No definition available.

+ Details

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- Definition

Number of months of loans contractually past due before being placed on nonaccrual status, in 'PnM' format.

+ References

No definition available.

+ Details

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- Definition

Threshold of "more likely than not" recognition for a tax position which is measured to determine the amount of benefit to recognize.

+ References

No definition available.

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- Definition

Amount of increase (decrease) to net income attributable to MUFG as the effect of recording intervening events, not recognized for the fiscal year.

+ References

No definition available.

+ Details

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- Definition

Period for determining allowances for credit losses, in 'PnY' format.

+ References

No definition available.

+ Details

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- Definition

The cash flow from the funds lent to and (borrowed from) other financial reporting institutions arising from excess or shortfall in reserve deposited to meet legal requirements. This lending and borrowing is usually contracted on an overnight basis at an agreed rate of interest. Also include cash outflow (inflow) from investments purchased under the agreement to resell such investment, call loans, and securities borrowing transactions.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 230
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- Definition

The net cash outflow or inflow for the increase (decrease) in the beginning and end of period of loan and lease balances which are not originated or purchased specifically for resale. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Section 45
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479024/942-230-45-1

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- Definition

Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
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Basis of Financial Statements and Summary of Significant Accounting Policies (Narrative) (Detail) - JPY (¥) ¥ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Basis of financial statements:
Purchases of available-for-sale debt securities (including purchases of debt securities under the fair value option)				¥ 101,306,253	¥ 87,816,718	¥ 81,002,626
Net increase in loans				3,620,030	1,565,920	1,402,980
Net decrease (increase) in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions				348,469	(3,758,551)	(1,113,515)
Net decrease in deposits				2,227,431	4,134,276	6,141,360
Net increase (decrease) in due to trust account and other short-term borrowings				¥ 12,379,688	¥ 822,146	¥ (8,467,520)
Increase in net income attributable to Mitsubishi UFJ Financial Group not recognized for the fiscal year	¥ 13,230	¥ 16,870	¥ 72,250
Summary of significant accounting policies:
Floor percentage of the corridor defined for the amortization of net actuarial gains and losses				10.00%
Adjustment staff accounting bulletin 122
Basis of financial statements:
Purchases of available-for-sale debt securities (including purchases of debt securities under the fair value option)				¥ 101,305
Net increase in loans				103,793
Net decrease (increase) in call loans, funds sold, and receivables under resale agreements and securities borrowing transactions				(504,562)
Net decrease in deposits				(627,992)
Net increase (decrease) in due to trust account and other short-term borrowings				¥ 314,837
Minimum
Summary of significant accounting policies:
Threshold of "more likely than not" recognition for a tax position				50.00%
Commercial \| Forecast
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year				3 years
Commercial \| Average historic loss
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year				2 years
Commercial \| Minimum
Summary of significant accounting policies:
Loans contractually past due before being placed on nonaccrual status, in month				1 month
Card \| Forecast
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year				3 years
Card \| Minimum
Summary of significant accounting policies:
Loans contractually past due before being placed on nonaccrual status, in month				3 months
Krungsri \| Minimum
Summary of significant accounting policies:
Loans contractually past due before being placed on nonaccrual status, in month				3 months
Residential \| Forecast
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year				3 years
Residential \| Average historic loss
Summary of significant accounting policies:
Period for determining allowances for credit losses, in year				2 years
Residential \| Minimum
Summary of significant accounting policies:
Loans contractually past due before being placed on nonaccrual status, in month				6 months