Fair Value Measurements (Tables)

6 Months Ended

12 Months Ended

Sep. 30, 2020

Mar. 31, 2020

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]


			Fair Value Measurements at Reporting Date Using
	As of September 30, 2020		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	$	107	$	107	$	—	$	—	Cash equivalents
Money market funds	2,004		2,004		—		—		Cash equivalents
Available-for-sale securities:
Corporate bonds	526		—		526		—		Short-term investments and cash equivalents
U.S. Treasury securities	726		726		—		—		Short-term investments
U.S. agency securities	5		—		5		—		Short-term investments
Commercial paper	390		—		390		—		Short-term investments and cash equivalents
Foreign government securities	82		—		82		—		Short-term investments and cash equivalents
Asset-backed securities	240		—		240		—		Short-term investments and cash equivalents
Certificates of deposit	55		—		55		—		Short-term investments
Foreign currency derivatives	19		—		19		—		Other current assets and other assets
Deferred compensation plan assets (a)	16		16		—		—		Other assets
Total assets at fair value	$	4,170	$	2,853	$	1,317	$	—
Liabilities
Foreign currency derivatives	$	44	$	—	$	44	$	—	Accrued and other current liabilities and other liabilities
Deferred compensation plan liabilities (a)	17		17		—		—		Other liabilities
Total liabilities at fair value	$	61	$	17	$	44	$	—


			Fair Value Measurements at Reporting Date Using
	As of March 31, 2020		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	$	78	$	78	$	—	$	—	Cash equivalents
Money market funds	1,599		1,599		—		—		Cash equivalents
Available-for-sale securities:
Corporate bonds	687		—		687		—		Short-term investments and cash equivalents
U.S. Treasury securities	603		603		—		—		Short-term investments and cash equivalents
U.S. agency securities	8		—		8		—		Short-term investments
Commercial paper	414		—		414		—		Short-term investments and cash equivalents
Foreign government securities	42		—		42		—		Short-term investments
Asset-backed securities	269		—		269		—		Short-term investments
Certificates of deposit	56		—		56		—		Short-term investments
Foreign currency derivatives	76		—		76		—		Other current assets and other assets
Deferred compensation plan assets (a)	13		13		—		—		Other assets
Total assets at fair value	$	3,845	$	2,293	$	1,552	$	—
Liabilities
Foreign currency derivatives	$	36	$	—	$	36	$	—	Accrued and other current liabilities and other liabilities
Deferred compensation plan liabilities (a)	14		14		—		—		Other liabilities
Total liabilities at fair value	$	50	$	14	$	36	$	—

(a)The Deferred Compensation Plan assets consist of various mutual funds. See Note 15 in our Annual Report on Form 10-K for the fiscal year ended March 31, 2020, for additional information regarding our Deferred Compensation Plan.