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SEGMENT INFORMATION
 12 Months Ended
Oct. 31, 2025
Segment Reporting [Abstract]  
SEGMENT INFORMATION SEGMENT INFORMATION
Our President and Chief Executive Officer is the chief operating decision maker ("CODM"). The three operating segments were determined based primarily on how the CODM views and evaluates our operations. The CODM uses segment net revenue and income from operations to assess the performance of the segments by reviewing budget to actual variances on a monthly basis. The CODM also uses segment net revenue and income from operations when making decisions about allocating capital and personnel resources predominantly during the annual strategic planning process. The CODM does not evaluate the segments using asset or liability information.
Description of Segments. We are a global leader in life sciences, diagnostics and applied markets, providing application focused solutions that include instruments, software, services and consumables for the entire laboratory workflow.
In November 2024, we announced a change in our organizational structure to support our market-focused, customer-centric strategy. Our former Diagnostics and Genomics segment combined with our liquid chromatography and liquid chromatography mass spectrometry instrument platforms to form our new Life Sciences and Diagnostics Markets segment. Our chemistries and supplies, laboratory automation, and software and informatics divisions moved from our former Life Sciences and Applied Markets segment to our Agilent CrossLab segment. The remaining divisions in our former Life Sciences and Applied Markets segment which includes our gas chromatography, gas chromatography mass spectrometry, remarketed instruments, spectroscopy and vacuum divisions formed our new Applied Markets segment.
Following this re-organization, we have three business segments - Life Sciences and Diagnostics Markets, Agilent CrossLab and Applied Markets, each of which comprises a reportable segment. All historical financial segment information has
been recast to conform to this new presentation.
A description of our three reportable segments is as follows:

Our Life Sciences and Diagnostics Markets segment is comprised of seven areas of activity. We provide active pharmaceutical ingredients for oligo-based therapeutics as well as solutions that include reagents, instruments, software and consumables, which enable customers in the clinical and life sciences research areas to interrogate samples at the cellular and molecular level. First, our liquid chromatography and liquid chromatography mass spectrometry businesses enable customers in the clinical and life sciences research areas to interrogate samples at the molecular and cellular level. Second, our cell analysis business includes instruments, reagents, software, and labware associated with unique live-cell analysis platforms in addition to mainstream flow cytometers, plate-readers, and plate washers/dispensers which are used across a broad range of applications. Third, our specialty contract development and manufacturing organization ("CDMO") business provides services related to and the production of synthesized oligonucleotides under pharmaceutical good manufacturing practices conditions for use as active pharmaceutical ingredients in a class of drugs that utilize nucleic acid molecules for disease therapy. BIOVECTRA capabilities include microbial fermentation, bioreagents, highly potent active pharmaceutical ingredients, peptide purification and biomanufacturing capabilities in several nucleic acid modalities. Together, our BIOVECTRA and nucleic acid solutions businesses comprise our specialty CDMO offerings to our customers providing clinical-to-commercial scale production capabilities. Fourth, our pathology solutions business is focused on product offerings for cancer diagnostics and anatomic pathology workflows. The broad portfolio of offerings includes immunohistochemistry, in situ hybridization, hematoxylin and eosin staining and special staining. This business further provides clinical flow cytometry reagents for routine cancer diagnostics. This business also provides bulk antibodies as raw materials and associated assay development services to in vitro diagnostics manufacturers, biotechnology and pharmaceutical companies. Fifth, we also collaborate with several major pharmaceutical companies to develop new potential tissue pharmacodiagnostics, also known as companion diagnostics, which may be used to identify patients most likely to benefit from a specific targeted therapy. Sixth, our genomics business includes reagents to support next-generation sequencing workflows and arrays. This business also includes solutions that enable clinical labs to identify DNA variants associated with genetic disease and help direct cancer therapy. Finally, our biomolecular analysis business provides complete workflow solutions, including instruments, consumables and software, for quality control analysis of nucleic acid samples. Samples are analyzed using quantitative and qualitative techniques to ensure accuracy in further genomics analysis techniques including next-generation sequencing, utilized in clinical and life science research applications.

Our Agilent CrossLab segment provides an extensive services and consumables portfolio that spans the entire lab, in addition to software and laboratory automation solutions, which are designed to improve customer outcomes and represents a broad range of offerings designed to serve customer needs across end-markets and applications. Our services portfolio includes repairs, parts, maintenance, installations, training, compliance support, software as a service, asset management, consulting and various other custom services to support the customers' laboratory operations. Custom services are tailored to meet the specific application needs of various industries and to keep instruments fully operational and compliant with the respective industry requirements. Our consumables portfolio is designed to improve customer outcomes. Most of the portfolio is vendor neutral, meaning we can serve and supply customers regardless of their instrument purchase choices. Solutions range from chemistries to supplies. Key product categories in consumables include gas chromatography and liquid chromatography columns, sample preparation products, custom chemistries, and a large selection of laboratory supplies. Software and informatics solutions include software for instrument control, data acquisition, data analysis, secure storage of results, and laboratory information and workflow management. This software facilitates the compliant use of instruments in pharmaceutical quality assurance and quality control environments. The OpenLab laboratory software suite is a scalable, open software platform that enables customers to capture, analyze, and share scientific data throughout the lab and across the enterprise. Laboratory automation offers automated sample preparation solutions, including liquid handling, plate management, consumables and scheduling software. These solutions range from standalone automation platforms to integrated workflow solutions with seamless integration to our instrumentation.

Our Applied Markets segment provides application-focused solutions that include instruments and software that enable customers to identify, quantify and analyze the physical and biological properties of substances and products. Our gas chromatography and gas chromatography mass spectrometry businesses enable customers to perform a wide variety of testing including measuring volatile and semi-volatile contaminants to assess the safety of our foods, quality of water and consumer products while also enabling testing of fuels and purity of chemicals. Our inductively coupled plasma mass spectrometry, inductively coupled plasma optical emission spectrometry, atomic absorption and microwave plasma-atomic emission spectrometry instruments are vital for our customers to measure metals and elemental signatures in their samples and find uses in the food safety, environmental quality, chemicals manufacture, advanced materials, energy and forensics markets. Our molecular spectroscopy business including the raman, fluorescence and infrared spectroscopy instruments offer both in-field
and in-lab testing solutions in a diverse variety of applications including airport security, explosives testing, narcotics, food quality and chemical characterization. Our vacuum business develops cutting edge products and technologies to test vacuum environments and find uses in a diverse variety of industries including semi-conductor, batteries, chemical manufacturing and advanced materials development. Finally, our remarketed instruments business refurbishes and resells certified pre-owned instruments to value-oriented customers who would like Agilent quality and performance at a budget conscious price.


The following tables reflect segment results under our management reporting system after excluding certain unallocated costs as noted in the reconciliations below:
Life Sciences and Diagnostics MarketsAgilent CrossLabApplied MarketsTotal
(in millions)
Year Ended October 31, 2025:
Net Revenue$2,726 $2,908 $1,314 $6,948 
Segment Expenses (1)
Cost of products and services1,301 1,297 599 
Research and development248 106 93 
Selling, general and administrative641 559 321 
Reportable segment income from operations$536 $946 $301 $1,783 
Year Ended October 31, 2024:
Net Revenue$2,466 $2,747 $1,297 $6,510 
Segment Expenses (1)
Cost of products and services1,121 1,185 580 
Research and development250 105 94 
Selling, general and administrative611 532 311 
Reportable segment income from operations$484 $925 $312 $1,721 
Year Ended October 31, 2023:
Net Revenue$2,780 $2,656 $1,397 $6,833 
Segment Expenses (1)
Cost of products and services1,205 1,188 615 
Research and development269 103 100 
Selling, general and administrative633 526 319 
Reportable segment income from operations$673 $839 $363 $1,875 
(1) Share-based compensation expense and depreciation expense included in segment expenses are shown below:
Years Ended October 31,
202520242023
(in millions)
Share-Based Compensation Expense:
Life Sciences and Diagnostics Markets$41 $46 $48 
Agilent CrossLab$46 $48 $40 
Applied Markets$21 $24 $24 
Depreciation Expense:
Life Sciences and Diagnostics Markets$97 $72 $60 
Agilent CrossLab$56 $54 $46 
Applied Markets$25 $23 $22 
          The following table reconciles reportable segments' income from operations to Agilent's total enterprise income before taxes:
 Years Ended October 31,
 202520242023
 (in millions)
Total reportable segments' income from operations$1,783 $1,721 $1,875 
Unallocated Costs:
Amortization of intangible assets related to business combinations(104)(102)(139)
Acquisition and integration costs(19)(12)(16)
Transformational initiatives(69)(11)(25)
Asset impairments— (8)(277)
Restructuring and other related costs(82)(76)(46)
Other (30)(24)(22)
Total unallocated costs(304)(233)(525)
Income from operations1,479 1,488 1,350 
Interest income62 80 51 
Interest expense(112)(96)(95)
Other income (expense), net6 49 33 
Income before taxes$1,435 $1,521 $1,339 
A portion of the segments' expenses arises from shared services and infrastructure that we have historically provided to the segments in order to realize economies of scale and to efficiently use resources. These expenses, collectively called corporate charges, include finance, tax, treasury, legal, real estate, insurance services, workplace services, human resources, information technology services, corporate development and other corporate infrastructure expenses, costs of centralized research and development and joint sales and marketing costs. Charges are allocated to the segments, and the allocations have been determined on a basis that we consider to be a reasonable reflection of the utilization of services provided to or benefits received by the segments. In addition, we do not allocate certain costs to the operating margin for each segment because management does not include this information in its measurement of the performance of the operating segments. Unallocated costs consist of asset impairments, amortization of acquisition-related intangible assets, acquisition and integration costs, transformational initiatives expenses, restructuring and other related costs, and certain other charges. Transformational initiatives include expenses associated with targeted cost reduction activities such as manufacturing transfers including costs to move manufacturing, site consolidations, legal entity and other business reorganizations, in-sourcing or outsourcing of activities. Included in this category are also expenses associated with the recent transformation and company programs to transform our product lifecycle management system and human resources and financial systems.

The following table presents summarized information for net revenue by geographic region. Revenues from external customers are generally attributed to countries based upon the customers' location.

Years Ended October 31,
202520242023
 (in millions)
Net revenue:   
United States$2,342 $2,246 $2,410 
China including Hong Kong1,224 1,217 1,383 
Rest of the world3,382 3,047 3,040 
Total net revenue6,948 6,510 6,833 



Major Customers.    No customer represented 10 percent or more of our total net revenue in 2025, 2024 or 2023.
The following table presents summarized information for long-lived assets by geographic region. Long lived assets consist of property, plant, and equipment, right-of-use assets, long-term receivables and other long-term assets excluding intangible assets and deferred tax assets. The rest of the world primarily consists of Asia and the rest of Europe.
October 31,
20252024
 (in millions)
Long-lived Assets:
United States$1,643 $1,453 
Canada285 279 
Germany322 244 
Rest of World532 529 
Total long-lived Assets$2,782 $2,505