v3.25.3

Share-based Compensation - Schedule of Award Activity Under the 2022 RSU Plan (Details) - Restricted Stock Units (RSUs) - 2022 RSU Plan shares in Millions	6 Months Ended
	Sep. 30, 2025 $ / shares shares
Awards
Outstanding, beginning of period (in shares) \| shares	7
Vested (in shares) \| shares	(3)
Outstanding, ending of period (in shares) \| shares	4
Weighted Average Grant Date Fair Value Per Award
Outstanding, beginning of period (in dollars per share) \| $ / shares	$ 47.34
Vested (in dollars per share) \| $ / shares	53.65
Outstanding, ending of period (in dollars per share) \| $ / shares	$ 49.44

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

+ Details

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- References

No definition available.

+ Details

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Details

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- Details

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ARM HOLDINGS PLC /UK 6-K