Employee Benefits - Summary of Amounts Related to Defined Benefit Pension Plans Recognized in Consolidated Statements of Income (Details) - JPY (¥) ¥ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
|
| Disclosure of defined benefit plans [line items] | |||
| Defined benefit costs | ¥ 18,106 | ¥ 18,697 | ¥ 16,772 |
| Japan | |||
| Disclosure of defined benefit plans [line items] | |||
| Defined benefit costs | 4,182 | 2,741 | 2,990 |
| Foreign | |||
| Disclosure of defined benefit plans [line items] | |||
| Defined benefit costs | ¥ 13,925 | ¥ 15,956 | ¥ 13,782 |