Revenue (Tables)

3 Months Ended

Oct. 29, 2022

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table presents this disaggregation of revenue (in millions):

	Three Months Ended
	October 29, 2022		October 30, 2021
Product revenue:
Secure, Agile Networks	$	6,684	$	5,968
Internet for the Future	1,310		1,373
Collaboration	1,086		1,109
End-to-End Security	971		895
Optimized Application Experiences	193		181
Other Products	2		3
Total Product	10,245		9,529
Services	3,387		3,371
Total	$	13,632	$	12,900

The following table presents revenue for groups of similar products and services (in millions):

	Three Months Ended
	October 29, 2022		October 30, 2021
Revenue:
Secure, Agile Networks	$	6,684	$	5,968
Internet for the Future	1,310		1,373
Collaboration	1,086		1,109
End-to-End Security	971		895
Optimized Application Experiences	193		181
Other Products	2		3
Total Product	10,245		9,529
Services	3,387		3,371
Total	$	13,632	$	12,900

Allowance for Credit Loss for Accounts Receivable

The allowances for credit loss for our accounts receivable are summarized as follows (in millions):

	Three Months Ended
	October 29, 2022		October 30, 2021
Allowance for credit loss at beginning of period	$	83	$	109
Provisions (benefits)	11		19
Recoveries (write-offs), net	(6)		(14)
Allowance for credit loss at end of period	$	88	$	114

Schedule of Gross Contract Assets by Internal Risk Ratings

Gross contract assets by our internal risk ratings are summarized as follows (in millions):

	October 29, 2022		July 30, 2022
1 to 4	$	356	$	414
5 to 6	898		814
7 and Higher	87		158
Total	$	1,341	$	1,386