Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Dec. 31, 2020

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Components of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The changes in accumulated other comprehensive income (loss) by component, net of tax, for the three months ended December 31, 2020 and 2019 are as follows (in millions):

	Unrealized Net Gains (Losses) on Available-for-Sale Securities		Unrealized Net Gains (Losses) on Derivative Instruments		Foreign Currency Translation Adjustments		Total
Balances as of September 30, 2020	$	4	$	(41)	$	(52)	$	(89)
Other comprehensive income (loss) before reclassifications	(2)		(46)		23		(25)
Amounts reclassified from accumulated other comprehensive income (loss)	—		20		—		20
Total other comprehensive income (loss), net of tax	(2)		(26)		23		(5)
Balances as of December 31, 2020	$	2	$	(67)	$	(29)	$	(94)

	Unrealized Net Gains (Losses) on Available-for-Sale Securities		Unrealized Net Gains (Losses) on Derivative Instruments		Foreign Currency Translation Adjustments		Total
Balances as of September 30, 2019	$	2	$	47	$	(59)	$	(10)
Other comprehensive income (loss) before reclassifications	(1)		(12)		7		(6)
Amounts reclassified from accumulated other comprehensive income (loss)	—		(17)		—		(17)
Total other comprehensive income (loss), net of tax	(1)		(29)		7		(23)
Balances as of December 31, 2019	$	1	$	18	$	(52)	$	(33)

The changes in accumulated other comprehensive income (loss) by component, net of tax, for the nine months ended December 31, 2020 and 2019 are as follows (in millions):

	Unrealized Net Gains (Losses) on Available-for-Sale Securities		Unrealized Net Gains (Losses) on Derivative Instruments		Foreign Currency Translation Adjustments		Total
Balances as of March 31, 2020	$	(4)	$	39	$	(85)	$	(50)
Other comprehensive income (loss) before reclassifications	6		(120)		56		(58)
Amounts reclassified from accumulated other comprehensive income (loss)	—		14		—		14
Total other comprehensive income (loss), net of tax	6		(106)		56		(44)
Balances as of December 31, 2020	$	2	$	(67)	$	(29)	$	(94)

	Unrealized Net Gains (Losses) on Available-for-Sale Securities		Unrealized Net Gains (Losses) on Derivative Instruments		Foreign Currency Translation Adjustments		Total
Balances as of March 31, 2019	$	(1)	$	22	$	(51)	$	(30)
Other comprehensive income (loss) before reclassifications	3		47		(1)		49
Amounts reclassified from accumulated other comprehensive income (loss)	(1)		(51)		—		(52)
Total other comprehensive income (loss), net of tax	2		(4)		(1)		(3)
Balances as of December 31, 2019	$	1	$	18	$	(52)	$	(33)

Reclassification out of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The effects on net income of amounts reclassified from accumulated other comprehensive income (loss) for the three and nine months ended December 31, 2020 were as follows (in millions):

	Amount Reclassified From Accumulated Other Comprehensive Income (Loss)
Statement of Operations Classification	Three Months Ended December 31, 2020		Nine Months Ended December 31, 2020
(Gains) losses on foreign currency forward contracts designated as cash flow hedges
Net revenue	$	22	$	10
Research and development	(2)		4
Total net (gain) loss reclassified, net of tax	$	20	$	14

The effects on net income of amounts reclassified from accumulated other comprehensive income (loss) for the three and nine months ended December 31, 2019 were as follows (in millions):

	Amount Reclassified From Accumulated Other Comprehensive Income (Loss)
Statement of Operations Classification	Three Months Ended December 31, 2019		Nine Months Ended December 31, 2019
(Gains) losses on foreign currency forward contracts designated as cash flow hedges
Net revenue	$	(18)	$	(59)
Research and development	1		8
Total net (gain) loss reclassified, net of tax	$	(17)	$	(51)