Fair Value (Tables)

12 Months Ended

Mar. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table presents the Company’s fair value hierarchy for assets and liabilities measured and recognized at fair value, excluding investments where the NAV practical expedient has been elected, on a recurring basis:

	As of March 31, 2025								As of March 31, 2024
(in millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	1,914	$	—	$	—	$	1,914	$	1,744	$	—	$	—	$	1,744
Short-term investments (1)	740		—		—		740		1,000		—		—		1,000
Equity investments (2)	98		—		200		298		—		—		466		466
Convertible loans receivable	—		—		34		34		—		—		32		32
Foreign currency forward contracts	—		7		—		7		—		4		—		4
Total financial assets	$	2,752	$	7	$	234	$	2,993	$	2,744	$	4	$	498	$	3,246
Financial liabilities
Foreign currency forward contracts	$	—	$	2	$	—	$	2	$	—	$	4	$	—	$	4
Total financial liabilities	$	—	$	2	$	—	$	2	$	—	$	4	$	—	$	4

(1)Short-term investments represent term deposits with banks with a maturity between 3 and 12 months.

(2)In accordance with ASC Subtopic 820-10, Fair Value Measurements, investments that are measured at fair value using the NAV practical expedient are not classified in the fair value hierarchy.

Schedule of Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following tables summarize changes in the fair value, along with other activity associated with the Company’s Level 3 financial assets and liabilities:

Equity Method Investments

	As of
(in millions)	March 31, 2025		March 31, 2024
Fair value of financial assets at the beginning of the period	$	466	$	482
Fair value losses recognized in the Consolidated Income Statements	(266)		(16)
Fair value at the end of the period	$	200	$	466

Convertible Loans Receivable

	As of
(in millions)	March 31, 2025		March 31, 2024
Fair value of financial assets at the beginning of the period	$	32	$	31
Fair value gains recognized in the Consolidated Income Statements	2		1
Fair value at the end of the period	$	34	$	32

Schedule of Fair Value Measurement Inputs and Valuation Techniques

The following tables provide quantitative information related to certain key assumptions utilized in the valuation of equity method investments accounted for under the fair value option:

As of March 31, 2025
(in millions)	Fair Value	Valuation Technique	Unobservable Inputs	Range of Estimates
Equity Method Investments	$200	Acetone Limited – Market-Calibration or discounted cash flow	LTM Revenue Multiple	1.1x - 1.3x
		Ampere – PWER	Probability of exit event	100%
			Time to future exit scenario	0.8 years
As of March 31, 2024
(in millions)	Fair Value	Valuation Technique	Unobservable Inputs	Range of Estimates
Equity Method Investments	$466	Acetone Limited – Market-Calibration or discounted cash flow	LTM Revenue Multiple	1.3x - 1.5x
		Ampere – PWER	Probability of exit event	100%
			Time to future exit scenario	1.5 years
			Discount rate	17.6%