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Segment Information and Major Customers
 3 Months Ended
Oct. 29, 2022
Segment Reporting [Abstract]  
Segment Information and Major Customers Segment Information and Major Customers
(a)Revenue and Gross Margin by Segment
We conduct business globally and are primarily managed on a geographic basis consisting of three segments: the Americas, EMEA, and APJC. Our management makes financial decisions and allocates resources based on the information it receives from our internal management system. Sales are attributed to a segment based on the ordering location of the customer. We do not allocate research and development, sales and marketing, or general and administrative expenses to our segments in this internal management system because management does not include the information in our measurement of the performance of the operating segments. In addition, we do not allocate amortization and impairment of acquisition-related intangible assets, share-based compensation expense, significant litigation settlements and other contingencies, charges related to asset impairments and restructurings, and certain other charges to the gross margin for each segment because management does not include this information in our measurement of the performance of the operating segments.
Summarized financial information by segment for the first quarter of fiscal 2023 and 2022, based on our internal management system and as utilized by our Chief Operating Decision Maker (“CODM”), is as follows (in millions):
Three Months Ended
October 29,
2022		October 30,
2021
Revenue:
Americas$7,914 $7,561 
EMEA3,675 3,303 
APJC2,043 2,036 
Total$13,632 $12,900 
Gross margin:
Americas$4,984 $4,875 
EMEA2,325 2,128 
APJC1,274 1,317 
Segment total8,582 8,321 
Unallocated corporate items(236)(268)
Total$8,346 $8,053 
Amounts may not sum due to rounding.
Revenue in the United States was $7.1 billion and $6.8 billion for the first quarter of fiscal 2023 and 2022, respectively.
(b)Revenue for Groups of Similar Products and Services
We design and sell Internet Protocol (IP)-based networking and other products related to the communications and IT industry and provide services associated with these products and their use.
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 Future1,310 1,373 
Collaboration1,086 1,109 
End-to-End Security971 895 
Optimized Application Experiences193 181 
Other Products2 3 
Total Product10,245 9,529 
Services3,387 3,371 
Total$13,632 $12,900 
Amounts may not sum due to rounding. We have made certain reclassifications to the product revenue amounts for prior period to conform to the current year presentation.