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