Employee Benefit Plans (Tables)

6 Months Ended

Jan. 29, 2022

Retirement Benefits [Abstract]

Summary of Share-Based Compensation Expense

The following table summarizes share-based compensation expense (in millions):

	Three Months Ended				Six Months Ended
	January 29, 2022		January 23, 2021		January 29, 2022		January 23, 2021
Cost of sales—product	$	29	$	25	$	54	$	49
Cost of sales—service	52		43		96		84
Share-based compensation expense in cost of sales	81		68		150		133
Research and development	205		171		386		338
Sales and marketing	142		128		282		262
General and administrative	49		59		111		120
Restructuring and other charges	—		10		1		21
Share-based compensation expense in operating expenses	396		368		780		741
Total share-based compensation expense	$	477	$	436	$	930	$	874
Income tax benefit for share-based compensation	$	152	$	95	$	256	$	176

Summary of Restricted Stock and Stock Unit Activity

A summary of the restricted stock and stock unit activity, which includes time-based and performance-based or market-based RSUs, is as follows (in millions, except per-share amounts):

	Restricted Stock/ Stock Units	Weighted-Average Grant Date Fair Value per Share		Aggregate Fair  Value
Unvested balance at July 25, 2020	96	$	42.03
Granted and assumed	51	41.89
Vested	(39)	39.63		$	1,813
Canceled/forfeited/other	(14)	42.13
Unvested balance at July 31, 2021	94	42.93
Granted and assumed	33	53.99
Vested	(21)	41.11		$	1,183
Canceled/forfeited/other	(7)	44.62
Unvested balance at January 29, 2022	99	$	46.83