Fair Value (Tables)

9 Months Ended

Apr. 25, 2020

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis were as follows (in millions):

	APRIL 25, 2020 FAIR VALUE MEASUREMENTS						JULY 27, 2019 FAIR VALUE MEASUREMENTS
	Level 1		Level 2		Total Balance		Level 1		Level 2		Total Balance
Assets:
Cash equivalents:
Money market funds	$	8,829	$	—	$	8,829	$	10,083	$	—	$	10,083
Commercial paper	—		189		189		—		—		—
Certificates of deposit	—		20		20		—		—		—
Available-for-sale debt investments:
U.S. government securities	—		2,610		2,610		—		808		808
U.S. government agency securities	—		54		54		—		169		169
Corporate debt securities	—		12,377		12,377		—		19,262		19,262
U.S. agency mortgage-backed securities	—		1,667		1,667		—		1,421		1,421
Commercial paper	—		1,272		1,272		—		—		—
Certificates of deposit	—		228		228		—		—		—
Equity investments:
Marketable equity securities	—		—		—		3		—		3
Derivative assets	—		200		200		—		89		89
Total	$	8,829	$	18,617	$	27,446	$	10,086	$	21,749	$	31,835
Liabilities:
Derivative liabilities	$	—	$	22	$	22	$	—	$	15	$	15
Total	$	—	$	22	$	22	$	—	$	15	$	15