Stockholders' Equity (Tables)

12 Months Ended

Mar. 31, 2019

Equity [Abstract]

Summary of Class of Treasury Stock

The details of shares repurchased are shown below:

Fiscal Year	Number of shares repurchased	Average Price Per Share	Amount (In millions)
2019	19,342,586	$69.20	$	1,339
2018	1,537,782	$89.41	$	137
2017	—	—	—

Schedule of Dividends

Dividends

	Dividends Declared
(in millions, except per share amounts)	Per Common Share		Total		Unpaid at Fiscal Year End
Fiscal 2019	$	0.76	$	209	$	53
Fiscal 2018	$	0.72	$	209	$	51
Fiscal 2017	$	0.56	$	80	$	20

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table shows the changes in accumulated other comprehensive income (loss), net of taxes:

(in millions)	Foreign Currency Translation Adjustments			Cash Flow Hedges			Available-for-sale Securities		Pension and Other Post-retirement Benefit Plans			Accumulated Other Comprehensive (Loss) Income
Balance at April 1, 2016	$	(399	)	$	(1	)	$	—	$	289		$	(111	)
Current-period other comprehensive (loss) income	(59		)	21			—		(2		)	(40		)
Amounts reclassified from accumulated other comprehensive (loss) income, net of taxes	—			—			—		(11		)	(11		)
Balance at March 31, 2017	$	(458	)	$	20		$	—	$	276		$	(162	)
Current-period other comprehensive (loss) income	197			(11		)	9		—			195
Amounts reclassified from accumulated other comprehensive (loss) income, net of taxes	—			—			—		25			25
Balance at March 31, 2018	$	(261	)	$	9		$	9	$	301		$	58
Current-period other comprehensive loss	(256		)	(22		)	—		(21		)	(299		)
Amounts reclassified from accumulated other comprehensive (loss) income, net of taxes	—			10			—		(13		)	(3		)
Balance at March 31, 2019	$	(517	)	$	(3	)	$	9	$	267		$	(244	)