The date on which share-based payment arrangements are granted. [Refer: Types of share-based payment arrangements [domain]]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_a&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph IG23
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_IG23&doctype=Implementation%20Guidance
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DateOfGrantOfSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average fair value at the measurement date of granted equity instruments other than share options. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	ifrs-full_TypesOfAntidilutiveInstrumentsAxis=ifrs-full_RestrictedShareUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sony_DateofGrantAxis=sony_November252022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sony_DateofGrantAxis=sony_July252023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sony_DateofGrantAxis=sony_November272023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sony_DateofGrantAxis=sony_July252024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sony_DateofGrantAxis=sony_November252024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Stock-based compensation plans - Summary of The weighted-average fair value of the units on the grant date of the restricted stock units (Detail) - Restricted share units [member] - JPY (¥)	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
November 25 2022 [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Date of grant of share-based payment arrangement			November 25,2022
Weighted average fair value at measurement date, other equity instruments granted			¥ 2,295
July 25, 2023 [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Date of grant of share-based payment arrangement		July 25,2023
Weighted average fair value at measurement date, other equity instruments granted		¥ 2,587
November 27, 2023 [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Date of grant of share-based payment arrangement		November 27,2023
Weighted average fair value at measurement date, other equity instruments granted		¥ 2,532
July 25, 2024 [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Date of grant of share-based payment arrangement	July 25,2024
Weighted average fair value at measurement date, other equity instruments granted	¥ 2,644
November 25, 2024 [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Date of grant of share-based payment arrangement	November 25,2024
Weighted average fair value at measurement date, other equity instruments granted	¥ 2,944