Retained Earnings, Legal Reserve and Dividends (Narrative) (Detail) - JPY (¥)
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Mar. 31, 2022 |
Mar. 31, 2021 |
Oct. 01, 2005 |
Apr. 02, 2001 |
| Retained Earnings Appropriated and Transferred [Line Items] |
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| Legal capital surplus |
¥ 5,327,772,000,000
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¥ 5,533,761,000,000
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|
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| Common stock and preferred stock issued, Value |
2,090,270,000,000
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¥ 2,090,270,000,000
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| Code and Japanese GAAP |
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| Retained Earnings Appropriated and Transferred [Line Items] |
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| Common stock issued, Value |
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¥ 924,400,000,000
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| Preferred stock issued, Value |
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|
|
222,100,000,000
|
| Legal capital surplus |
|
|
¥ 3,577,570,000,000
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2,838,693,000,000
|
| Common stock and preferred stock issued, Value |
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1,383,052,000,000
|
|
| Retained earnings |
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|
¥ 757,458,000,000
|
¥ 0
|
| Japanese GAAP |
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| Retained Earnings Appropriated and Transferred [Line Items] |
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| MUFG's amount available for dividends |
¥ 4,440,891,000,000
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| Minimum | Banking Law |
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| Retained Earnings Appropriated and Transferred [Line Items] |
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| Percentage of aggregate amount of cash dividends and certain appropriations of retained earnings associated with cash set aside as legal reserve |
20.00%
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| Minimum | Companies Act |
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| Retained Earnings Appropriated and Transferred [Line Items] |
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| Percentage of aggregate amount of cash dividends and certain appropriations of retained earnings associated with cash set aside as legal reserve |
10.00%
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| Maximum | Banking Law |
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| Retained Earnings Appropriated and Transferred [Line Items] |
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| Percentage of aggregate amount of legal reserve set aside as an appropriation of retained earnings and the legal capital surplus over stated capital |
100.00%
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| Percentage of aggregate amount of legal reserve set aside as an appropriation of retained earnings and the legal capital surplus available for dividends over stated capital |
100.00%
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| Maximum | Companies Act |
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| Retained Earnings Appropriated and Transferred [Line Items] |
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| Percentage of aggregate amount of legal reserve set aside as an appropriation of retained earnings and the legal capital surplus over stated capital |
25.00%
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| Percentage of aggregate amount of legal reserve set aside as an appropriation of retained earnings and the legal capital surplus available for dividends over stated capital |
25.00%
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