Retirement Benefits (Tables)
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12 Months Ended |
Mar. 31, 2026 |
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| Text Block1 [Abstract] |
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| Detailed Information for the Defined Benefit Plans |
The following tables provide detailed information for the defined benefit pla ns. The amounts of the retirement benefit liabilities and the retirement benefit assets recognized in the consolidated statements of financial position at March 31, 2026 and 2025 were determined as follows:
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Present value of unfunded obligations |
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¥ |
(24,054 |
) |
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¥ |
(25,972 |
) |
Present value of funded obligations |
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(757,430 |
) |
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(857,083 |
) |
Fair value of plan assets |
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2,034,686 |
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1,804,994 |
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Net retirement benefit assets (liabilities) before the asset ceiling |
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¥ |
1,253,202 |
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¥ |
921,939 |
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Effect of the asset ceiling |
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659,730 |
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443,867 |
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Net retirement benefit assets (liabilities) |
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¥ |
593,472 |
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¥ |
478,072 |
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Of which retirement benefit liabilities included in “Other liabilities” |
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¥ |
(35,829 |
) |
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¥ |
(34,996 |
) |
Of which retirement benefit assets included in “Other assets” |
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¥ |
629,301 |
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¥ |
513,068 |
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| Movements in Defined Benefit Obligation |
The movements in the defined benefit obligations for the fiscal years ended March 31, 2026 and 2025 were as follows:
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For the fiscal year ended
March 31, |
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¥ |
883,055 |
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¥ |
986,810 |
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21,924 |
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25,597 |
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20,286 |
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15,154 |
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Actuarial losses (gains)—demographic assumptions |
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567 |
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(4,170 |
) |
Actuarial losses (gains)—financial assumptions |
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(81,664 |
) |
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(80,455 |
) |
Actuarial losses (gains)—experience |
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(3,837 |
) |
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447 |
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(45,227 |
) |
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(43,583 |
) |
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(15,623 |
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(16,094 |
) |
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462 |
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— |
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1,541 |
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(651 |
) |
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¥ |
781,484 |
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¥ |
883,055 |
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| Movements in Fair Value of the Plan Assets |
The movements in the fair value of plan assets for the fiscal years ended March 31, 2026 and 2025 were as follows:
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For the fiscal year ended
March 31, |
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¥ |
1,804,994 |
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¥ |
1,820,599 |
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41,293 |
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27,406 |
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Return on plan assets excluding interest income |
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217,483 |
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(13,129 |
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Contributions by employer |
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13,384 |
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13,979 |
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(45,227 |
) |
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(43,583 |
) |
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2,759 |
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(278 |
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¥ |
2,034,686 |
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¥ |
1,804,994 |
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| Effect of the Asset Ceiling |
The movements in the effect of the asset ceiling for the fiscal years ended March 31, 2026 and 2025 were as follows:
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For the fiscal year ended
March 31, |
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¥ |
443,867 |
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¥ |
330,739 |
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9,943 |
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4,896 |
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Change in the asset ceiling |
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205,920 |
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108,232 |
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¥ |
659,730 |
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¥ |
443,867 |
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| Amounts Recognized in Consolidated Income Statement |
The amounts recognized in “General and administrative expenses” in the consolidated income statements for the fiscal years ended March 31, 2026, 2025 and 2024 were as follows:
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For the fiscal year ended March 31, |
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¥ |
21,924 |
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¥ |
25,597 |
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¥ |
26,431 |
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(11,064 |
) |
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(7,356 |
) |
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(6,213 |
) |
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462 |
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— |
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(20 |
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¥ |
11,322 |
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¥ |
18,241 |
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¥ |
20,198 |
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| Plan Assets |
The plan assets at March 31, 2026 and 2025 were composed as follows:
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Plan assets retained in the pension funds: |
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¥ |
155,581 |
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¥ |
88,434 |
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¥ |
244,015 |
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¥ |
160,285 |
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¥ |
118,407 |
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¥ |
278,692 |
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5,377 |
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210,267 |
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215,644 |
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8,955 |
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204,352 |
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213,307 |
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General account of life insurance companies |
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138 |
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22,577 |
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22,715 |
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160 |
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22,195 |
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22,355 |
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Other investments and short-term assets |
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49,947 |
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811,018 |
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860,965 |
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48,128 |
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657,649 |
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705,777 |
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Plan assets retained in the retirement benefit trusts: |
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541,865 |
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4,025 |
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545,890 |
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546,424 |
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3,162 |
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549,586 |
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135,429 |
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10,028 |
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145,457 |
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24,827 |
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10,450 |
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35,277 |
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¥ |
888,337 |
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¥ |
1,146,349 |
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¥ |
2,034,686 |
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¥ |
788,779 |
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¥ |
1,016,215 |
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¥ |
1,804,994 |
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| Principal Actuarial Assumptions |
The principal actuarial assumptions used at March 31, 2026, 2025 and 2024 were as follows: |
| Sensitivity Analyses of Effect of Changes in Key Assumptions on Defined Benefit Obligations |
The sensitivity analyses of the eff e ct of changes in key assumptions on the defined benefit obligations at March 31, 2026 and 2025 were as follows:
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¥ |
(32,112 |
) |
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¥ |
(40,637 |
) |
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35,458 |
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45,208 |
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Average life expectancy at age 60: |
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¥ |
18,325 |
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¥ |
23,391 |
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| Weighted Average Durations of Defined Benefit Plans |
The weighted average durations of defined benefit plans for the fiscal years ended March 31, 2026, 2025 and 2024 were as follows:
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Lump-sum severance indemnity plans |
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10.6 |
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11.2 |
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12.0 |
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Defined benefit pension plans |
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14.2 |
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15.4 |
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16.4 |
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