Fair Value Measurements (Tables)

6 Months Ended

12 Months Ended

Sep. 30, 2024

Mar. 31, 2024

Fair Value Disclosures [Abstract]

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

As of September 30, 2024 and March 31, 2024, our assets and liabilities that were measured and recorded at fair value on a recurring basis were as follows (in millions):

			Fair Value Measurements at Reporting Date Using
	As of September 30, 2024		Quoted Prices in Active Markets  for Identical Financial Instruments		Significant Other Observable Inputs		Significant Unobservable Inputs		Balance Sheet  Classification
			(Level 1)		(Level 2)		(Level 3)
Assets
Bank and time deposits	$	61	$	61	$	—	$	—	Cash equivalents
Money market funds	535		535		—		—		Cash equivalents
Available-for-sale securities:
Corporate bonds	140		—		140		—		Short-term investments
U.S. Treasury securities	91		91		—		—		Short-term investments and cash equivalents
U.S. agency securities	4		—		4		—		Short-term investments
Commercial paper	78		—		78		—		Short-term investments and cash equivalents
Foreign government securities	5		—		5		—		Short-term investments
Asset-backed securities	43		—		43		—		Short-term investments
Certificates of deposit	19		—		19		—		Short-term investments
Foreign currency derivatives	16		—		16		—		Other current assets and other assets
Deferred compensation plan assets (a)	35		35		—		—		Other assets
Total assets at fair value	$	1,027	$	722	$	305	$	—
Liabilities
Foreign currency derivatives	$	73	$	—	$	73	$	—	Accounts payable, accrued, and other current liabilities and other liabilities
Deferred compensation plan liabilities (a)	36		36		—		—		Other liabilities
Total liabilities at fair value	$	109	$	36	$	73	$	—

			Fair Value Measurements at Reporting Date Using
	As of March 31, 2024		Quoted Prices in Active Markets for Identical Financial Instruments		Significant Other Observable Inputs		Significant Unobservable Inputs		Balance Sheet  Classification
			(Level 1)		(Level 2)		(Level 3)
Assets
Bank and time deposits	$	58	$	58	$	—	$	—	Cash equivalents
Money market funds	1,038		1,038		—		—		Cash equivalents
Available-for-sale securities:
Corporate bonds	130		—		130		—		Short-term investments
U.S. Treasury securities	95		95		—		—		Short-term investments
U.S. agency securities	9		—		9		—		Short-term investments
Commercial paper	74		—		74		—		Short-term investments and cash equivalents
Foreign government securities	8		—		8		—		Short-term investments
Asset-backed securities	41		—		41		—		Short-term investments
Certificates of deposit	13		—		13		—		Short-term investments
Foreign currency derivatives	29		—		29		—		Other current assets and other assets
Deferred compensation plan assets (a)	30		30		—		—		Other assets
Total assets at fair value	$	1,525	$	1,221	$	304	$	—
Liabilities
Foreign currency derivatives	$	20	$	—	$	20	$	—	Accounts payable, accrued, and other current liabilities and other liabilities
Deferred compensation plan liabilities (a)	31		31		—		—		Other liabilities
Total liabilities at fair value	$	51	$	31	$	20	$	—

(a)The Deferred Compensation Plan consists of various mutual funds. See Note 15 in our Annual Report on Form 10-K for the fiscal year ended March 31, 2024, for additional information regarding our Deferred Compensation Plan.