Financial Instruments and Fair Value Measurements (Tables)

12 Months Ended

Apr. 27, 2018

Investments Debt And Equity Securities [Abstract]

Summary of Investments

The following is a summary of our investments (in millions):

	April 27, 2018									April 28, 2017
	Cost or							Estimated		Cost or							Estimated
	Amortized		Gross Unrealized					Fair		Amortized		Gross Unrealized					Fair
	Cost		Gains		Losses			Value		Cost		Gains		Losses			Value
Corporate bonds	$	1,861	$	1	$	(39	)	$	1,823	$	1,535	$	3	$	(2	)	$	1,536
U.S. Treasury and government debt    securities		497		—		(5	)		492		629		1		(2	)		628
Foreign government debt securities		4		—		—			4		21		—		—			21
Commercial paper		230		—		—			230		362		—		—			362
Certificates of deposit		115		—		—			115		99		—		—			99
Mutual funds		31		—		—			31		31		—		—			31
Total debt and equity securities	$	2,738	$	1	$	(44	)	$	2,695	$	2,677	$	4	$	(4	)	$	2,677

Contractual Maturities of Debt Investments

The following table presents the contractual maturities of our debt investments as of April 27, 2018 (in millions):

	Amortized Cost		Fair Value
Due in one year or less	$	968	$	966
Due after one year through five years		1,110		1,094
Due after five years through ten years		629		604
	$	2,707	$	2,664

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis (in millions):

	April 27, 2018
				Fair Value Measurements at Reporting Date Using
	Total			Level 1		Level 2
Cash	$	2,727		$	2,727	$	—
Corporate bonds		1,823			—		1,823
U.S. Treasury and government debt securities		492			253		239
Foreign government debt securities		4			—		4
Commercial paper		230			—		230
Certificates of deposit		115			—		115
Total cash, cash equivalents and short-term investments	$	5,391		$	2,980	$	2,411
Other items:
Mutual funds(1)	$	6		$	6	$	—
Mutual funds(2)	$	25		$	25	$	—
Foreign currency exchange contracts assets(1)	$	9		$	—	$	9
Foreign currency exchange contracts liabilities(3)	$	(1	)	$	—	$	(1	)

	April 28, 2017
				Fair Value Measurements at Reporting Date Using
	Total			Level 1		Level 2
Cash	$	2,275		$	2,275	$	—
Corporate bonds		1,536			—		1,536
U.S. Treasury and government debt securities		628			273		355
Foreign government debt securities		21			—		21
Commercial paper		362			—		362
Certificates of deposit		99			—		99
Total cash, cash equivalents and short-term investments	$	4,921		$	2,548	$	2,373
Other items:
Mutual funds(1)	$	7		$	7	$	—
Mutual funds(2)	$	24		$	24	$	—
Foreign currency exchange contracts assets(1)	$	1		$	—	$	1
Foreign currency exchange contracts liabilities(3)	$	(4	)	$	—	$	(4	)

⁽¹⁾ Reported as other current assets in the consolidated balance sheets

⁽²⁾ Reported as other non-current assets in the consolidated balance sheets

⁽³⁾ Reported as accrued expenses in the consolidated balance sheets