Financial income and expense - Summary of financial income and expenses (Parenthetical) (Detail) ¥ in Millions, $ in Millions |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
|
Mar. 31, 2025
JPY (¥)
|
Mar. 31, 2025
USD ($)
|
Mar. 31, 2024
JPY (¥)
|
Mar. 31, 2024
USD ($)
|
Mar. 31, 2023
JPY (¥)
|
Mar. 31, 2023
USD ($)
|
|
| Spotify Technology S A [Member] | ||||||
| Disclosure of offsetting of financial liabilities [line items] | ||||||
| Pre-tax unrealized gain, net of costs resulted from revaluation of the Spotify shares owned | ¥ 69,019 | $ 443 | ¥ 64,764 | $ 440 | ¥ (7,787) | $ (58) |