Supplemental Cash Flow Information - Schedule of Cash Flows from Operating Activities (Details) - JPY (¥) ¥ in Millions	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Supplemental Cash Flow Informations [Abstract]
Interests received	¥ 115,524	¥ 89,771	¥ 74,962
Interest paid	¥ (10,466)	¥ (4,463)	¥ (2,246)

The cash outflow for interest paid, classified as operating activities.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 31
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_31&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_InterestPaidClassifiedAsOperatingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration