Subsequent Events (Narrative) (Detail) - JPY (¥) ¥ / shares in Units, ¥ in Millions |
12 Months Ended | ||||
---|---|---|---|---|---|
Jun. 27, 2025 |
May 15, 2025 |
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
|
Subsequent Event [Line Items] | |||||
Cash dividend per common share (in YEN per share) | ¥ 45.50 | ¥ 36.50 | ¥ 30.50 | ||
Subsequent event | |||||
Subsequent Event [Line Items] | |||||
Cash dividend per common share (in YEN per share) | ¥ 39.0 | ||||
Dividends, Common Stock | ¥ 449,733 | ||||
Aggregated number of shares allowed for repurchase (in shares) | 175,000,000 | ||||
Aggregate amount of shares allowed for repurchase | ¥ 250,000 | ||||
Subsequent event | Common stock | |||||
Subsequent Event [Line Items] | |||||
Shares authorized to be repurchased as % of total shares outstanding | 1.50% |