Pension and Other Employee Benefit Plans (Plans with Projected Benefit Obligations in Excess of Plan Assets and Plans with Accumulated Benefit Obligations in Excess of Plan Assets) (Detail) - JPY (¥) ¥ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Plans with projected benefit obligations in excess of plan assets: | ||
| Projected benefit obligations | ¥ 34,583 | ¥ 28,770 |
| Fair value of plan assets | 11,477 | 4,675 |
| Plans with accumulated benefit obligations in excess of plan assets: | ||
| Accumulated benefit obligations | 34,583 | 28,770 |
| Fair value of plan assets | ¥ 11,477 | ¥ 4,675 |
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- Definition Defined benefit plan pension plans with accumulated benefit obligations in exceptions off plan assets aggregate project benefit obligation. No definition available.
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- Definition Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of projected benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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