Derivative Financial Instruments (Tables)

3 Months Ended

Jun. 30, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions

Total gross notional amounts and fair values for currency derivatives with cash flow hedge accounting designation are as follows (in millions):

	As of June 30, 2019						As of March 31, 2019
	Notional Amount		Fair Value				Notional Amount		Fair Value
			Asset		Liability				Asset		Liability
Forward contracts to purchase	$	192	$	1	$	3	$	295	$	—	$	10
Forward contracts to sell	$	1,176	$	34	$	1	$	1,355	$	31	$	4

Total gross notional amounts and fair values for currency derivatives that are not designated as hedging instruments are accounted for as follows (in millions):

	As of June 30, 2019						As of March 31, 2019
	Notional Amount		Fair Value				Notional Amount		Fair Value
			Asset		Liability				Asset		Liability
Forward contracts to purchase	$	426	$	1	$	—	$	449	$	—	$	2
Forward contracts to sell	$	386	$	—	$	1	$	394	$	2	$	—

Derivative Instruments, Gain (Loss)

	Amount of Gain (Loss) Recognized in the Statement of Operations
	Three Months Ended June 30,
	2019					2018
	Net revenue		Research and development			Net revenue			Research and development
Total amounts presented in our Condensed Consolidated Statements of Operations in which the effects of cash flow hedges are recorded	$	1,209	$	381		$	1,137		$	362
Gains (losses) on foreign currency forward contracts designated as cash flow hedges	$	16	$	(6	)	$	(14	)	$	(1	)

The effect of foreign currency forward contracts not designated as hedging instruments in our Condensed Consolidated Statements of Operations for the three months ended June 30, 2019 and 2018 was as follows (in millions):

	Amount of Gain (Loss) Recognized in the Statement of Operations
	Three Months Ended June 30,
	2019			2018
	Interest and other income (expense), net
Total amounts presented in our Condensed Consolidated Statements of Operations in which the effects of balance sheet hedges are recorded	$	21		$	19
Gain (losses) on foreign currency forward contracts not designated as hedging instruments	$	(4	)	$	9