Keysight (KEYS) 10-K17 Dec 212021 FY Annual reportFinancial data

Company Profile

Document And Entity Information

Document And Entity Information - USD ($) $ in Billions	12 Months Ended
Document And Entity Information - USD ($) $ in Billions	Oct. 31, 2021	Dec. 13, 2021	Apr. 30, 2021
Cover [Abstract]
Document Annual Report	true
Title of 12(b) Security	Common Stockpar value $0.01 per share
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-4254555
Entity Registrant Name	KEYSIGHT TECHNOLOGIES, INC.
Entity Central Index Key	0001601046
Current Fiscal Year End Date	--10-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 19
Entity Common Stock, Shares Outstanding		183,042,478
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Oct. 31, 2021
Document Transition Report	false
Trading Symbol	KEYS
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity File Number	001-36334
Entity Address, Address Line One	1400 Fountaingrove Parkway
Entity Address, City or Town	Santa Rosa
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95403
City Area Code	(800)
Local Phone Number	829-4444
Security Exchange Name	NYSE
Entity Interactive Data Current	Yes
ICFR Auditor Attestation Flag	true
Documents Incorporated by Reference [Text Block]	Portions of the Proxy Statement for the Annual Meeting of Stockholders (the "Proxy Statement") to be held on March 17, 2022 and to be filed pursuant to Regulation 14A within 120 days after registrant's fiscal year ended October 31, 2021 are incorporated by reference into Part III of this Report.

CONSOLIDATED STATEMENT OF OPERA

CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Net Revenue:
Total net revenue	$ 4,941	$ 4,221	$ 4,303
Costs and expenses:
Cost of Goods and Services Sold	1,872	1,688	1,769
Research and Development Expense	811	715	688
Selling, General and Administrative Expense	1,195	1,097	1,155
Goodwill impairment	0	0	0
Other Operating Income (Expense), Net	(17)	(44)	(20)
Total costs and expenses	3,861	3,456	3,592
Income from operations	1,080	765	711
Interest income	3	11	23
Interest expense	(79)	(78)	(80)
Other income (expense), net	6	63	61
Income before taxes	1,010	761	715
Provision for income taxes	116	134	94
Net income	$ 894	$ 627	$ 621
Net income per share:
Net income per share - basic	$ 4.84	$ 3.35	$ 3.31
Net income per share - diluted	$ 4.78	$ 3.31	$ 3.25
Weighted average shares used in computing net income per share:
Basic (in shares)	185	187	188
Diluted (in shares)	187	189	191
Products
Net Revenue:
Total net revenue	$ 4,050	$ 3,432	$ 3,554
Costs and expenses:
Cost of Goods and Services Sold	1,522	1,373	1,439
Service, Other [Member]
Net Revenue:
Total net revenue	891	789	749
Costs and expenses:
Cost of Goods and Services Sold	$ 350	$ 315	$ 330

CONSOLIDATED STATEMENT OF COMPR

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 894	$ 627	$ 621
Other comprehensive income (loss):
Unrealized gain (loss) on derivative instruments, net of tax benefit (expense) of $(6), $(4) and $1	26	16	(4)
Amounts reclassified into earnings related to derivative instruments, net of tax benefit (expense) of zero, $(1) and zero	(2)	3	3
Foreign currency translation, net of tax benefit (expense) of zero	(10)	33	17
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Change in actuarial net gain (loss), net of tax benefit (expense) of $(55), $23 and $28	144	(64)	(91)
Change in net prior service credit, net of tax benefit of zero, $3 and $4	(1)	(9)	(15)
Other comprehensive income (loss)	157	(21)	(90)
Total comprehensive income	$ 1,051	$ 606	$ 531

CONSOLIDATED STATEMENT OF COM_2

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosures [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	$ (6)	$ (4)	$ 1
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	0	(1)	0
OCI, Foreign Currency Transaction and Translation Gain (Loss), Arising During Period, Tax	0	0	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax	55	(23)	(28)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Tax	$ 0	$ 3	$ 4

CONSOLIDATED BALANCE SHEET

CONSOLIDATED BALANCE SHEET - USD ($) shares in Millions, $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Current assets:
Cash and cash equivalents	$ 2,052	$ 1,756
Accounts receivable, net	735	606
Inventory	777	757
Other current assets	270	255
Total current assets	3,834	3,374
Property, plant and equipment, net	650	595
Operating lease right-of-use assets	227	182
Goodwill	1,628	1,537
Other intangible assets, net	272	361
Long-term investments	70	61
Long-term deferred tax assets	711	740
Other assets	389	368
Total assets	7,781	7,218
Current liabilities:
Accounts payable	287	224
Employee compensation and benefits	355	289
Deferred revenue	478	391
Income and other taxes payable	74	64
Operating lease liabilities	41	43
Other accrued liabilities	74	70
Total current liabilities	1,309	1,081
Long-term debt	1,791	1,789
Retirement and post-retirement benefits	167	362
Long-term deferred revenue	187	175
Long-term operating lease liabilities	191	149
Other long-term liabilities	352	365
Total liabilities	3,997	3,921
Commitments and contingencies (Note 14)
Stockholders' equity:
Preferred stock; $0.01 par value; 100 million shares authorized; none issued and outstanding	0	0
Common stock; $0.01 par value; 1 billion shares authorized; 197 million shares at October 31, 2021, and 196 million shares at October 31, 2020 issued	2	2
Treasury stock at cost; 15.1 million shares at October 31, 2021 and 10.7 million shares at October 31, 2020	(1,425)	(752)
Additional paid-in-capital	2,219	2,110
Retained earnings	3,430	2,536
Accumulated other comprehensive loss	(442)	(599)
Total stockholders' equity	3,784	3,297
Total liabilities and equity	$ 7,781	$ 7,218
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100	100
Common stock, shares issued (in shares)	197	196
Treasury Stock, Common, Shares	15.1	10.7

CONSOLIDATED BALANCE SHEET (Par

CONSOLIDATED BALANCE SHEET (Parenthetical) shares in Millions	Oct. 31, 2021$ / sharesshares
Stockholders' equity:
Preferred stock, par value (in dollars per share) \| $ / shares	$ 0.01
Preferred stock, shares authorized (in shares)	100
Common stock, par value (in dollars per share) \| $ / shares	$ 0.01
Common stock, shares authorized (in shares)	1,000
Common stock, shares issued (in shares)	197
Treasury Stock, Common, Shares	15.1

CONSOLIDATED STATEMENT OF CASH

CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Cash flows from operating activities:
Net income	$ 894	$ 627	$ 621
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	117	104	96
Amortization	176	222	212
Share-based compensation	103	92	82
Deferred tax expense (benefit)	(53)	41	(2)
Excess and obsolete inventory-related charges	27	29	27
Loss on settlement of pension plan	16	0	0
Gain on insurance proceeds received for damage to property, plant and equipment	0	32	0
Other non-cash expenses (income), net	6	(10)	(3)
Changes in assets and liabilities:
Accounts receivable	(122)	75	(26)
Inventory	(43)	(73)	(92)
Accounts payable	53	(33)	13
Employee compensation and benefits	50	2	0
Deferred revenue	96	41	112
Income taxes payable	34	5	(16)
Retirement and post-retirement benefits	7	(108)	(37)
Other assets and liabilities	(39)	34	11
Net cash provided by operating activities	1,322	1,016	998
Cash flows from investing activities:
Investments in property, plant and equipment	(174)	(117)	(120)
Acquisitions of businesses and intangible assets, net of cash acquired	(178)	(357)	(88)
Insurance proceeds received for damage to property, plant and equipment	0	32	0
Proceeds from sale of investments	0	0	7
Other investing activities	(1)	0	5
Net cash used in investing activities	(353)	(442)	(196)
Cash flows from financing activities:
Proceeds from issuance of common stock under employee stock plans	59	58	67
Payment of taxes related to net share settlement of equity awards	(53)	(53)	(26)
Treasury stock repurchases	(673)	(411)	(159)
Proceeds from issuance of long-term debt	0	0	500
Repayment of debt	0	(7)	(500)
Payment for Contingent Consideration Liability, Financing Activities	(2)	0	0
Other financing activities	(2)	0	(4)
Net cash used in financing activities	(671)	(413)	(122)
Effect of exchange rate movements	3	6	3
Net increase in cash, cash equivalents, and restricted cash	301	167	683
Cash, cash equivalents, and restricted cash at beginning of year	1,767	1,600	917
Cash, cash equivalents, and restricted cash at end of year	2,068	1,767	1,600
Supplemental Cash Flow Elements [Abstract]
Interest payments	75	75	76
Income tax paid, net	130	84	103
Investments in property, plant and equipment included in accounts payable	$ 22	$ 14	$ 14

CONSOLIDATED STATEMENT OF EQUIT

CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income/(Loss) [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Retained Earnings [Member]
Common Stock, Shares, Outstanding at Oct. 31, 2018		191,204,000
Treasury Stock, Shares at Oct. 31, 2018				(4,364,000)
Beginning Balance at Oct. 31, 2018	$ 2,433	$ 2	$ 1,889	$ (182)	$ 1,212	$ (488)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	621				621
Issuance of Common Stock (in shares)		2,565,000
Issuance of Common Stock (in $)	68		68
Other comprehensive income (loss), net of tax	(90)					(90)
Taxes related to net share settlement of equity awards	(26)		(26)
Share-based compensation	$ 82		82
Treasury Stock, Shares, Acquired	(2,093,570)			(2,094,000)
Repurchase of common stock (at cost)	$ (160)			$ (160)
Ending Balance at Oct. 31, 2019	3,004	$ 2	2,013	$ (342)	1,909	(578)	$ 76	$ 76
Common Stock, Shares, Outstanding at Oct. 31, 2019		193,769,000
Treasury Stock, Shares at Oct. 31, 2019				(6,458,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	627				627
Issuance of Common Stock (in shares)		1,892,000
Issuance of Common Stock (in $)	58		58
Other comprehensive income (loss), net of tax	(21)					(21)
Taxes related to net share settlement of equity awards	(53)		(53)
Share-based compensation	$ 92		92
Treasury Stock, Shares, Acquired	(4,274,366)			(4,274,000)
Repurchase of common stock (at cost)	$ (410)			$ (410)
Ending Balance at Oct. 31, 2020	3,297	$ 2	2,110	$ (752)	2,536	(599)
Common Stock, Shares, Outstanding at Oct. 31, 2020		195,661,000
Treasury Stock, Shares at Oct. 31, 2020				(10,732,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	894				894
Issuance of Common Stock (in shares)		1,587,000
Issuance of Common Stock (in $)	59		59
Other comprehensive income (loss), net of tax	157					157
Taxes related to net share settlement of equity awards	(53)		(53)
Share-based compensation	$ 103		103
Treasury Stock, Shares, Acquired	(4,361,542)			(4,362,000)
Repurchase of common stock (at cost)	$ (673)			$ (673)
Ending Balance at Oct. 31, 2021	$ 3,784	$ 2	$ 2,219	$ (1,425)	$ 3,430	$ (442)
Common Stock, Shares, Outstanding at Oct. 31, 2021		197,248,000
Treasury Stock, Shares at Oct. 31, 2021				(15,094,000)

OVERVIEW AND SUMMARY OF SIGNIFI

OVERVIEW AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
OVERVIEW AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Oct. 31, 2021
Accounting Policies [Abstract]
OVERVIEW AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	1. OVERVIEW, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Overview. Keysight Technologies, Inc. ("we," "us," "Keysight" or the "company"), incorporated in Delaware on December 6, 2013, is a technology company that helps enterprises, service providers and governments accelerate innovation to connect and secure the world by providing electronic design and test solutions that are used in the simulation, design, validation, manufacture, installation, optimization and secure operation of electronics systems in the communications, networking and electronics industries. We also offer customization, consulting and optimization services throughout the customer's product development lifecycle, including start-up assistance, asset management, up-time services, application services and instrument calibration and repair. Basis of Presentation. We have prepared the accompanying financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and in conformity with generally accepted accounting principles in the U.S. ("GAAP"). Our fiscal year end is October 31. Unless otherwise stated, all years and dates refer to our fiscal year. Management is responsible for the fair presentation of the accompanying consolidated financial statements, prepared in accordance with GAAP, and has full responsibility for their integrity and accuracy. In the opinion of management, the accompanying consolidated financial statements contain all normal and recurring adjustments necessary to present fairly our consolidated balance sheet and our consolidated statement of operations, statement of comprehensive income, statement of cash flows and statement of equity. Principles of consolidation. The consolidated financial statements include the accounts of the company and our wholly- and majority-owned subsidiaries. All significant inter-company transactions have been eliminated. Use of Estimates. The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Although these estimates are based on management's knowledge of current events and actions that may impact the company in the future, actual results may be different from the estimates. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. We are not aware of any specific event or circumstance that would require an update to our estimates or judgments or a revision of the carrying value of our assets or liabilities as of October 31, 2021. Our critical accounting policies are those that affect our financial statements materially and involve difficult, subjective or complex judgments by management. Those policies are revenue recognition, inventory valuation, share-based compensation, retirement and post-retirement plan assumptions, valuation of goodwill and other intangible assets, warranty, loss contingencies, restructuring and accounting for income taxes. Revenue recognition Revenue is recognized upon transfer of control of the promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. We primarily generate revenue from the sale of products (hardware and/or software), services, or a combination thereof. We enter into contracts that may involve multiple performance obligations, and we allocate the transaction price between each performance obligation on the basis of relative standalone selling price. Revenue is recognized net of allowances for returns and any taxes collected from customers, which are subsequently remitted to governmental authorities. Nature of Goods and Services Product revenues are generated predominantly from the sale of various types of design and test software and hardware. Products consist of standalone software and hardware generally installed with software applications that are licensed on a perpetual and term basis. Our hardware products generally do not have any substantive acceptance terms that would otherwise preclude the transfer of control. Performance obligations related to our software licenses, including the license portion of our software subscriptions, grant the customer the right to use our software via electronic delivery. Service revenues consist of repair and calibration services, extended warranties, technical support for hardware and software, when-and-if available software updates and upgrades, and professional services, including installation and implementation, consulting, and training. Services include both hardware and software services. Repair and calibration services for hardware products are sold both as per-incident customer services and as customer agreements to provide such services over the contractual period. Extended warranties are optional to the customer and provide warranty on hardware products for additional years beyond the standard one-year warranty. Technical support for software and when-and-if available software updates and upgrades are sold either together with our software licenses and software subscriptions, or separately as part of our customer support programs. These are considered stand-ready performance obligations where customers benefit from the services evenly throughout the license or service period. These performance obligations provide the customer access evenly over the contract period. Our professional services may be sold on a time and material basis (e.g., consulting) or on a fixed-fee basis (e.g., non-recurring engineering). We also generate revenues from a combination of products and services ("custom solutions"), including combinations of hardware, software, software subscriptions, installation, professional services, and other support services. Custom solutions provide the customer with a combination of hardware, software and professional services to meet customers' unique specifications and are accounted for as one performance obligation. For our contracts with customers, we account for individual performance obligations separately if they are distinct. Our standard payment terms are net 30 to 90 days, and we generally do not offer extended payment terms beyond one year. Our contracts typically contain various forms of variable consideration, including trade discounts, trade-in credits, rebates, and rights of return. The transaction price is allocated to the separate performance obligations on a relative standalone selling price basis. Standalone selling prices ("SSPs") for a majority of our products and services are estimated based on our established pricing practices and maximize the use of observable inputs. An observable input is the price of the good or service when it is sold as a separate item in a similar circumstance and to a similar customer as in the contract for which SSPs are being determined. We have elected to exclude from the measurement of the transaction price all taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction and collected by Keysight from a customer (e.g., sales, use, value added, and some excise taxes). We have also elected to account for shipping and handling activities that occur after control of the related good transfers as fulfillment activities instead of assessing such activities as performance obligations. Our typical performance obligations include the following: Performance obligation When performance obligation is typically satisfied When payment is typically due How standalone selling price is typically determined Product Revenues Hardware When customer obtains control of the product, typically at delivery (point in time) Within 30-90 days of shipment Estimated based on established pricing practices or observable based on standalone sales for certain hardware products Software licenses Upon electronic delivery of the software, and the applicable license period has begun (point in time) Within 30-90 days of the beginning of license period Estimated based on established pricing practices or observable based on standalone sales for certain software products Threat intelligence solutions Ratably over the subscription period (over time) Within 30-90 days of the beginning of subscription period Estimated based on established pricing practices Service Revenues Calibration contracts Ratably over the service contract period (over time) Within 30-90 days of the beginning of service contract period Estimated based on established pricing practices Repair and calibration (per- incident) As services are performed (point in time) Within 30-90 days of invoicing for services rendered Estimated based on established pricing practices Extended hardware warranty Ratably over the warranty period (over time) Within 30-90 days of invoicing Estimated based on established pricing practices or observable based on standalone sales of certain hardware warranty contracts Technical support and when-and-if-available software updates Ratably over the license service contract period (over time) Within 30-90 days of the beginning of license or service contract period Estimated based on established pricing practices or observable based on standalone sales for certain support contracts Professional services As services are performed based on measures of progress (over time) or at a point in time Within 30-90 days of invoicing for services rendered Estimated based on established pricing practices Custom Solutions Custom solutions (milestone-based) As milestones are achieved based on transfer of control to customer (over time) Within 30-90 days of milestone achievement Transaction price, as pricing is custom and can vary significantly from contract to contract Custom solutions (point in time) When customer obtains control of the solution, typically at delivery or customer acceptance, as defined by the contract (point in time) Within 30-90 days of delivery of solution Transaction price, as pricing is custom and can vary significantly from contract to contract Significant Judgments Judgment is required to determine the standalone selling price for each distinct performance obligation. As most of our products and services are not sold on a standalone basis, we typically estimate the standalone selling price. In doing so, we consider our internal price list for each product and service, which reflects our desired profitability, based on an expected level of sales, and adjust for factors such as competition, customer relationship, discount provided in the contract, geographic location, and the products and services purchased in the arrangement. We use a range based on actual historical sales to determine whether the calculated standalone selling price for a product or service is a fair representation of the standalone selling price. For capitalized contract costs, we use judgment in determining the capitalized amount and amortization period. Our products are generally sold with a right of return and we may provide other credits, discounts, or incentives, which are accounted for as variable consideration at the portfolio level and estimated based on historical information. Returns, credits, and discounts are estimated at contract inception and updated at the end of each reporting period as additional information becomes available to the extent that it is probable a significant reversal of the cumulative amount of revenue recognized will not occur once the variability is subsequently resolved. Shipping and handling costs. Our shipping and handling costs charged to customers are included in revenue, and the associated expense is recorded in cost of products for all periods presented. Deferred revenue. We recognize contract liabilities in our consolidated balance sheet as deferred revenue, which represents the amount of service and software revenue deferred and recognized over the contractual period or as services are rendered and accepted by the customer. In addition, it includes the amount allocated to undelivered performance obligations. Accounts receivable, net. Trade accounts receivable are recorded at the invoiced amount and do not bear interest. Such accounts receivable have been reduced by an allowance for doubtful accounts, which is our best estimate of the amount of probable credit losses in our existing accounts receivable. We determine the allowance based on customer specific experience and the aging of such receivables, among other factors. The allowance for doubtful accounts was approximately $4 million and $3 million as of October 31, 2021 and 2020, respectively. We do not have any off-balance-sheet credit exposure related to our customers. Share-based compensation. We account for share-based awards made to our employees and directors, including restricted stock units ("RSUs"), employee stock purchases made under Keysight's employee stock purchase plan under Section 423(b) of the Internal Revenue Code ("ESPP"), employee stock option awards, and performance share awards under Keysight Technologies, Inc. Long-Term Performance ("the LTP") Program, using the estimated grant date fair value method of accounting. We recorded compensation expense for all share-based awards of $104 million in 2021, $93 million in 2020 and $82 million in 2019. Inventory. Inventory is valued at standard cost, which approximates actual cost computed on a first-in, first-out basis, not in excess of market value. We assess the valuation of our inventory on a periodic basis and make adjustments to the value for estimated excess and obsolete inventory based on estimates about future demand and actual usage. The excess balance determined by this analysis becomes the basis for our excess inventory charge. Our excess inventory review process includes analysis of sales unit forecasts, managing product rollovers and working with manufacturing to maximize recovery of excess inventory. Warranty. Keysight warranties on products sold through direct sales channels are primarily for one year. Warranties for products sold through distribution channels are primarily for three years. We accrue for standard warranty costs based on historical trends in warranty charges. The accrual is reviewed regularly and periodically adjusted to reflect changes in warranty cost estimates. Estimated warranty charges are recorded within cost of products at the time related product revenue is recognized. See Note 13, "Supplemental financial information". We also sell extended warranties that provide warranty coverage beyond the standard warranty term. Revenue associated with extended warranties is deferred and recognized over the extended coverage period. Loss contingencies. We accrue for probable losses from contingencies, including legal settlement costs, on an undiscounted basis when such costs are considered probable of being incurred and are reasonably estimable. We periodically evaluate available information, both internal and external, relative to such contingencies and adjust this accrual as necessary. Taxes on income. Income tax expense is based on income or loss before taxes. Deferred income taxes reflect the effect of temporary differences between asset and liability amounts that are recognized for financial reporting purposes and the amounts that are r ecognized for income tax purposes. These deferred taxes are measured by applying currently enacted tax laws. Valuation allowances are recognized to reduce deferred tax assets to the amount that is more likely than not to be realized. We account for uncertainty in income taxes using a two-step approach to recognize and measure uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50 percent likely of being realized upon settlement. We make adjustments to these reserves when facts and circumstances change, such as the closing of a tax audit or the refinement of an estimate due to new information. We classify the liability for unrecognized tax benefits as current to the extent that the company anticipates payment (or receipt) of cash within one year. Interest and penalties related to uncertain tax positions are recognized in the provision for income taxes. Given the number of years and numerous matters that remain subject to examination in various tax jurisdictions, we are unable to estimate the range of possible changes to the balance of our unrecognized tax benefits. Goodwill and other intangible assets. Goodwill is assessed for impairment on a reporting unit basis at least annually in the fourth quarter, as of September 30, or more frequently when events and circumstances occur indicating that the recorded goodwill may be impaired. The impairment test compares the fair value of a reporting unit with its carrying amount, with an impairment charge recorded for the amount by which the carrying amount exceeds the reporting unit’s fair value up to a maximum amount of the goodwill balance for the reporting unit. We determine fair values for each of the reporting units using the market approach, when available and appropriate, or the income approach, or a combination of both. If multiple valuation methodologies are used, the results are weighted appropriately. Valuations using the market approach are derived from metrics of publicly traded comparable companies. The selections of comparable businesses are based on the markets in which our reporting units operate, giving consideration to risk profiles, size, geography and diversity of products and services. Under the income approach, fair value is determined based on the present value of estimated future cash flows, discounted at an appropriate risk-adjusted rate. We use our internal forecasts to estimate future cash flows and include an estimate of long-term future growth rates based on our most recent views of the long-term outlook for each business. As defined in the authoritative guidance, a reporting unit is an operating segment or one level below an operating segment. During the fourth quarter of 2021, we performed our annual impairment test for all our reporting units. Based on the results of our testing, the fair value of each of our reporting units exceeded the carrying value. There were no impairments of goodwill during the years ended October 31, 2021, 2020 and 2019. See Note 2, “Acquisitions,” and Note 7, “Goodwill and Other Intangible Assets,” for additional information about our goodwill and other intangible assets. Other intangible assets consist primarily of developed technologies, proprietary know-how, trademarks, customer relationships, non-compete agreements, and acquired backlog and are amortized using the straight-line method over estimated useful lives ranging from 6 months to 12 years. We review other intangible assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. No impairments of purchased intangible assets were recorded during the years ended October 31, 2021, 2020 and 2019. The authoritative accounting guidance allows a qualitative approach for testing indefinite-lived intangible assets for impairment, similar to the impairment testing guidance for goodwill. It allows the option to first assess qualitative factors (events and circumstances) that could have affected the significant inputs used in determining the fair value of the indefinite-lived intangible asset. The qualitative factors assist in determining whether it is more-likely-than-not that the indefinite-lived intangible asset is impaired. An organization may choose to bypass the qualitative assessment for any indefinite-lived intangible asset in any period and proceed directly to calculating its fair value. Our indefinite-lived intangible assets are in-process research and development ("IPR&D") intangible assets. In 2021, 2020 and 2019 we assessed impairment by performing a qualitative test and concluded that no material impairment of indefinite-lived intangible assets was required. Advertising. Advertising costs are expensed as incurred and were $21 million in 2021, $24 million in 2020 and $22 million in 2019. Research and development. Costs related to the research, design and development of our products are charged to research and development expense as they are incurred. Investments. Investments with readily determinable fair values and trading securities are reported at fair value. Equity investments without readily determinable fair values are measured at cost with adjustments for observable changes in price or impairments. Gains or losses resulting from changes in fair value are recognized currently in earnings. The company assesses investments for impairment whenever events or changes in circumstances indicate that the carrying value of an investment may not be recoverable. There was no impairment recognized in 2021, 2020 and 2019. Net income per share. Basic net income per share is computed by dividing net income by the weighted average number of common shares outstanding during the period excluding the dilutive effect of stock options and other employee stock plans. Diluted net income per share gives effect to all potentially dilutive common stock equivalents outstanding during the period. The dilutive effect of share-based awards is reflected in diluted net income per share by application of the treasury stock method, which includes consideration of unamortized share-based compensation expense, and the dilutive effect of in-the-money options and non-vested RSUs. Under the treasury stock method, the amount the employee must pay for exercising stock options and unamortized share-based compensation expense are assumed proceeds to be used to repurchase hypothetical shares. Cash, cash equivalents and short-term investments. We classify investments as cash equivalents if their original maturity or remaining maturity at the time of purchase is three months or less at the date of purchase. Cash equivalents are stated at cost, which approximates fair value. As of October 31, 2021, approximately $1.6 billion of our cash, cash equivalents and restricted cash was held outside of the U.S. in our foreign subsidiaries. Our cash and cash equivalents mainly consist of investments in institutional money market funds, short-term deposits held at major global financial institutions, and similar short duration instruments with original maturities of 90 days or less. We continuously monitor the creditworthiness of the financial institutions in which we invest our funds. We utilize a variety of funding strategies in an effort to ensure that our worldwide cash is available in the locations in which it is needed. Most significant international locations have access to internal funding through an offshore cash pool for working capital needs. In addition, a few locations that are unable to access internal funding have access to temporary local overdraft and short-term working capital lines of credit. We classify investments as short-term investments if their original maturities are greater than three months and their remaining maturities are one year or less. Fair value of financial instruments. The carrying values of certain of our financial instruments, including cash and cash equivalents, accounts receivable, accounts payable and other accrued liabilities, approximate fair value because of their short maturities. The fair value of long-term equity investments is determined using quoted market prices for those securities when available. For those long-term equity investments accounted for under the equity method or measurement alternative, the carrying value approximates estimated fair value. The fair value of our long-term debt, calculated from quoted prices that are primarily Level 1 inputs under the accounting guidance fair value hierarchy, exceeded the carrying value less debt issuance costs by approximately $178 million and $236 million as of October 31, 2021 and 2020, respectively. The fair value of foreign currency contracts used for hedging purposes is estimated internally by using inputs tied to active markets. These inputs, for example, interest rate yield curves, foreign exchange rates, and forward and spot prices for currencies, are observable in the market or can be corroborated by observable market data for substantially the full term of the assets or liabilities. See also Note 8, "Fair Value Measurements," for additional information on the fair value of financial instruments. Concentration of credit risk. Financial instruments that potentially subject us to significant concentration of credit risk include money market fund investments, time deposits and demand deposit balances. These investments are categorized as cash and cash equivalents and long-term investments. In addition, we have credit risk from derivative financial instruments used in hedging activities and accounts receivable. We invest in a variety of financial instruments and limit the amount of credit exposure with any one financial institution. We have a comprehensive credit policy in place and credit exposure is monitored on an ongoing basis. Credit risk with respect to our accounts receivable is diversified due to the large number of entities comprising our customer base and their dispersion across many different industries and geographies. Credit evaluations are performed on customers requiring credit over a certain amount. Credit risk is mitigated through collateral, such as letters of credit, bank guarantees or payment terms like cash in advance. No single customer accounted for more than 10 percent of accounts receivable as of October 31, 2021 or 2020. Derivative instruments. We are exposed to global foreign currency exchange rate risk in the normal course of business. We enter into foreign exchange hedging contracts, primarily forward contracts to manage financial exposures resulting from changes in foreign currency exchange rates. Foreign currency exposures include committed and anticipated revenue and expense transactions (cash flow exposure) and assets and liabilities that are denominated in currencies other than the functional currency of the subsidiary (balance sheet exposure). For cash flow hedges, contracts are designed at inception as hedges of the related foreign currency exposures. We formally document all relationships between hedging instruments and hedged items, as well as our risk-management objective and strategy for undertaking various hedge transactions at the inception of the hedge. This process includes linking all derivatives that are designated as cash flow hedges to specific forecasted transactions. We also formally assess, both at the hedge’s inception and on an ongoing basis, whether the hedging instruments are highly effective in offsetting changes in cash flows of hedged items. Our foreign exchange hedging contracts have maturities based on a rolling period of up to twelve months. We do not use derivative financial instruments for speculative trading purposes. All derivatives are recognized on the balance sheet at their fair values. For derivative instruments that are designated and qualify as a cash flow hedge, changes in the value of the effective portion of the derivative instrument is recognized in accumulated comprehensive income, a component of stockholders' equity. Amounts associated with cash flow hedges are reclassified and recognized in income when either the forecast transaction occurs or it becomes probable the forecast transaction will not occur. Derivatives not designated as hedging instruments are recorded on the balance sheet at fair value, and changes in fair value are recorded in earnings in the current period. Derivative instruments are subject to master netting arrangements and qualify for net presentation in the balance sheet. Cash flows from derivative instruments are classified in the statement of cash flows in the same category as the cash flows from the hedged or economically hedged item, primarily in operating activities. Property, plant and equipment. Property, plant and equipment are stated at cost less accumulated depreciation. Additions, improvements and major renewals are capitalized; maintenance, repairs and minor renewals are expensed as incurred. When assets are retired or disposed of, the assets and related accumulated depreciation are removed from our general ledger, and the resulting gain or loss is reflected in the consolidated statement of operations. Buildings and improvements are depreciated over the lesser of their useful lives or the remaining term of the lease and machinery and equipment, which is generally over three years to ten years. We use the straight-line method to depreciate assets. Leases. We adopted Accounting Standards Codification (“ASC”) Topic 842, Leases (“ASC 842”), on November 1, 2019 using the modified retrospective transition approach provided by Accounting Standards Update ("ASU") 2018-11, Leases: Targeted Improvements , with the cumulative effect of initially applying the standard recognized at the date of adoption. We determine whether an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities (current and non-current) on our consolidated balance sheet. Finance leases are included in property, plant and equipment, other accrued liabilities, and other long-term liabilities in our consolidated balance sheet. Our finance lease and lessor arrangements are immaterial. ROU assets and lease obligations are recognized based on their present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the lease term and economic environment to discount lease obligations. ROU assets also include any lease payments made and exclude lease incentives and initial direct costs incurred. We initially measure payments based on an index by using the applicable rate at lease commencement. Variable payments that do not depend on an index are not included in the lease liability and are recognized as they are incurred. See Note 10, "Leases," for additional information. Impairment of long-lived assets. We continually monitor events and changes in circumstances that could indicate carrying amounts of long-lived assets may not be recoverable. When such events or changes in circumstances occur, we assess the recoverability of long-lived assets by determining whether the carrying value of such assets will be recovered through undiscounted expected future cash flows. If the total of the undiscounted future cash flows is less than the carrying amount of those assets, we recognize an impairment loss based on the excess of the carrying amount over the fair value of the assets. Restructuring costs. The main component of our existing restructuring plans is related to workforce reductions and site restructuring. Workforce reduction charges are accrued when payment of benefits becomes probable and the amounts can be estimated. If the amounts and timing of cash flows from restructuring activities are significantly different from what we have estimated, the actual amount of restructuring and other related charges could be materially different, either higher or lower, than those we have recorded. Employee compensation and benefits. Amounts owed to employees, such as accrued salary, bonuses and vacation benefits are reported within employee compensation and benefits in the consolidated balance sheet. The total amount of accrued vacation benefit was $114 million and $107 million as of October 31, 2021 and 2020, respectively. Foreign currency translation. We translate and remeasure balance sheet and statement of operations items into U.S. dollars. For those subsidiaries that operate in a local currency functional environment, all assets and liabilities are translated into U.S. dollars using current exchange rates at the balance sheet date; revenue and expenses are translated using monthly exchange rates that approximate average exchang

ACQUISITIONS

ACQUISITIONS	12 Months Ended
ACQUISITIONS	Oct. 31, 2021
Business Combinations [Abstract]
ACQUISITIONS	2. ACQUISITIONS 2021 Acquisitions Acquisition of Sanjole During the first quarter of fiscal 2021, we acquired Sanjole Inc. ("Sanjole") for $102 million, net of $11 million cash acquired, and recognized additions to goodwill and other intangible assets of $48 million and $51 million, respectively, based on the allocation of the purchase price to the estimated fair values of the assets acquired and liabilities assumed. We expect the goodwill recognized on the Sanjole acquisition or any potential impairment charges in the future to be deductible for income tax purposes. The identified intangible assets primarily consist of developed technology of $24 million, customer relationships of $17 million and in-process R&D of $7 million. The estimated useful lives of developed technology and customer relationships are 7 years and 9 years, respectively. Sanjole is a leader in wireless test and measurement solutions for protocol decoding and interoperability. Additionally, we acquired two other businesses for $76 million, net of cash acquired, and recognized goodwill and other intangible assets of $52 million and $32 million, respectively, based on the preliminary allocation of the purchase price to the estimated fair values of the assets acquired and liabilities assumed. Goodwill for the acquisitions was assigned to the Communications Solutions Group. 2020 Acquisitions Acquisition of Eggplant During the third quarter of fiscal 2020, we acquired Eggplant Topco Limited ("Eggplant") for $319 million, net of $11 million cash acquired, and recognized additions to goodwill and other intangible assets of $280 million and $88 million, respectively, based on the allocation of the purchase price to the estimated fair values of the assets acquired and liabilities assumed. The identified intangible assets primarily consist of developed technology of $38 million and customer relationships of $46 million with estimated useful lives of 3 years and 6 years, respectively. Eggplant is a software test automation platform provider that uses artificial intelligence and analytics to automate test creation and test execution. All goodwill was assigned to the Electronic Industrial Solutions Group. We do not expect the goodwill recognized or any potential impairment charges in the future to be deductible for income tax purposes. Additionally, we acquired two other businesses for $38 million, net of cash acquired, and recognized goodwill of $34 million based on the allocation of the purchase price to the estimated fair values of the assets acquired and liabilities assumed. Goodwill for the acquisitions was assigned to the Communications Solutions Group. Supplemental Pro Forma Information (Unaudited) Pro forma results of operations for 2021 and 2020 acquisitions have not been presented because the effects of the acquisitions were not material to the company’s financial results.

REVENUE (Notes)

REVENUE (Notes)	12 Months Ended
REVENUE (Notes)	Oct. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	3. REVENUE Disaggregation of Revenue We disaggregate our revenue from contracts with customers by geographic region, end market, and timing of revenue recognition, as we believe these categories best depict how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. Disaggregated revenue is presented for each of our reportable segments, Communications Solutions Group ("CSG") and Electronics Industrial Solutions Group ("EISG"). Year Ended October 31, 2021 2020 2019 CSG EISG Total CSG EISG Total CSG EISG Total (in millions) Region Americas $ 1,697 $ 299 $ 1,996 $ 1,424 $ 217 $ 1,641 $ 1,474 $ 250 $ 1,724 Europe 500 295 795 421 255 676 456 257 713 Asia Pacific 1,326 824 2,150 1,287 617 1,904 1,238 628 1,866 Total revenue $ 3,523 $ 1,418 $ 4,941 $ 3,132 $ 1,089 $ 4,221 $ 3,168 $ 1,135 $ 4,303 End Market Aerospace, Defense & Government $ 1,142 $ — $ 1,142 $ 928 $ — $ 928 $ 975 $ — $ 975 Commercial Communications 2,381 — 2,381 2,204 — 2,204 2,193 — 2,193 Electronic Industrial — 1,418 1,418 — 1,089 1,089 — 1,135 1,135 Total revenue $ 3,523 $ 1,418 $ 4,941 $ 3,132 $ 1,089 $ 4,221 $ 3,168 $ 1,135 $ 4,303 Timing of Revenue Recognition Revenue recognized at a point in time $ 2,936 $ 1,233 $ 4,169 $ 2,598 $ 946 $ 3,544 $ 2,748 $ 1,037 $ 3,785 Revenue recognized over time 587 185 772 534 143 677 420 98 518 Total revenue $ 3,523 $ 1,418 $ 4,941 $ 3,132 $ 1,089 $ 4,221 $ 3,168 $ 1,135 $ 4,303 Our point-in-time revenues are generated predominantly from the sale of various types of design and test software and hardware, and per-incident repair and calibration services. Perpetual software and the portion of term software subscription revenue in this category represents revenue recognized up front upon transfer of control at the time of electronic delivery. Revenue on per-incident repair and calibration services is recognized when services are performed. Over-time revenues are generated predominantly from the repair and calibration contracts, extended warranties, technical support for hardware and software, certain software subscription and Software as a Service ("SaaS") product offerings, and professional services. Technical support for software and when-and-if available software updates and upgrades are sold either together with our software licenses and software subscriptions, including SaaS, or separately as part of our customer support programs. Additionally, we provide custom solutions that include combinations of hardware, software, software subscriptions, installation, professional services, and other support services, and revenue may be recognized either up front on delivery or over time depending upon the terms of the contract. Contract Balances Contract assets Contract assets consist of unbilled receivables and are recorded when revenue is recognized in advance of scheduled billings to our customers. These amounts are primarily related to solutions and support arrangements when transfer of control has occurred but we have not yet invoiced. The contract assets balances were $84 million and $61 million as of October 31, 2021 and October 31, 2020, respectively, and are included in "accounts receivables, net" and "other assets" in our consolidated balance sheet. Contract costs We capitalize direct and incremental costs incurred to acquire contracts for which the associated revenue is expected to be recognized in future periods. We have determined that certain employee and third-party representative commission programs meet the requirements to be capitalized. These costs are initially deferred and typically amortized over the term of the customer contract which corresponds to the period of benefit. Capitalized contract costs were $39 million and $31 million as of October 31, 2021 and October 31, 2020, respectively, and are included in “other current assets” and “other assets” in the consolidated balance sheet. The amortization expense associated with these costs was $77 million, $83 million and $64 million for the years ended October 31, 2021, 2020 and 2019, respectively. Contract liabilities Our contract liabilities consist of deferred revenue that arises when we receive consideration in advance of providing the goods or services promised in the contract. Contract liabilities are primarily generated from customer deposits received in advance of shipments for products or rendering of services and are recognized as revenue when services are provided to the customer. We classify deferred revenue as current or non-current based on the timing of when we expect to recognize revenue. Year Ended October 31, 2021 Balance at October 31, 2020 $ 566 Deferral of revenue billed in current period, net of recognition 487 Deferred revenue arising out of acquisitions 3 Revenue recognized that was deferred as of the beginning of the period (391) Foreign currency translation impact — Balance at October 31, 2021 $ 665 Remaining Performance Obligations Revenue expected to be recognized in any future period related to remaining performance obligations, excluding revenue pertaining to contracts that have an original expected duration of one year or less, was approximately $382 million as of October 31, 2021, and represents the company’s obligation to deliver products and services and obtain customer acceptance on delivered products. Since we typically invoice customers at contract inception, this amount is included in our current and long-term deferred revenue balances. As of October 31, 2021, we expect to recognize approximately 51 percent of the revenue related to these unsatisfied performance obligations during 2022, 29 percent in 2023 and 20 percent thereafter.

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION	12 Months Ended
SHARE-BASED COMPENSATION	Oct. 31, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract]
SHARE-BASED COMPENSATION	4. SHARE-BASED COMPENSATION Keysight accounts for share-based awards in accordance with the provisions of the authoritative accounting guidance, which requires the measurement and recognition of compensation expense for all share-based payment awards made to our employees and directors, including RSUs, ESPP, employee stock option awards, and performance share awards granted to selected members of our senior management under the LTP Program, based on estimated fair values. Description of Keysight’s Share-Based Plans Incentive compensation plans. The 2014 Equity and Incentive Compensation Plan (the "2014 Stock Plan") was originally adopted by our board of directors on July 16, 2014, subsequently amended and restated by our board of directors on September 29, 2014 and on January 22, 2015 and became effective as of November 1, 2014. Our board of directors initially reserved 25 million shares of company common stock that may be issued under the 2014 Stock Plan, plus any shares forfeited or cancelled under the 2014 Stock Plan and subsequently reduced the number to 17 million shares. The 2014 Stock Plan was further amended and restated by our board of directors on November 16, 2017 to increase the maximum aggregate number of shares that may be issued under the 2014 Stock Plan to 21.8 million shares. The 2014 Stock Plan provides for the grant of awards in the form of stock options, SARs, restricted stock, RSUs, performance shares and performance units with performance-based conditions on vesting or exercisability, and cash awards. The 2014 Stock Plan has a term of ten years. As of October 31, 2021, approximately 6 million shares were available for future awards under the 2014 Stock Plan. Stock options granted under the 2014 Stock Plan may be either "incentive stock options," as defined in Section 422 of the Internal Revenue Code, or non-statutory. Options were granted prior to November 1, 2015 and generally vest at a rate of 25 percent per year over a period of four years from the date of grant with a maximum contractual term of ten years. The exercise price for stock options is generally not less than 100 percent of the fair market value of our common stock on the date the stock award is granted. Effective November 1, 2014, the Compensation and Human Capital Committee of our board of directors approved the performance awards, part of the LTP Program administered under the 2014 Stock Plan, for the company's executive officers and other key employees. Participants in this program are entitled to receive unrestricted shares of the company's stock after the end of the contractual period if specified performance targets are met. The maximum contractual period for awards under the performance awards program is three years. These awards can be based on a variety of targets, such as total shareholder return ("TSR") or financial metrics, such as operating margin, cost synergies and others. The final award may vary from zero to 200 percent of the target award based on the actual performance. For TSR-based performance awards, the peer group comparisons are set at the beginning of the performance period. The performance targets for operating margin-based performance grants are set each year in the first quarter for that respective year. We consider the dilutive impact of this program in our diluted net income per share calculation only to the extent that the performance conditions are met. RSUs under our share-based plans are granted to directors, executives and employees. The estimated fair value of the restricted stock unit awards granted under the 2014 Stock Plan is determined based on the market price of Keysight common stock on the date of grant. RSUs generally vest, with some exceptions, at a rate of 25 percent per year over a period of four years from the date of grant. Effective November 1, 2014, the company adopted the ESPP. The ESPP allows eligible employees to contribute up to 10 percent of their base compensation to purchase shares of Keysight common stock at 85 percent of the closing market price at the purchase date. Shares authorized for issuance in connection with the ESPP are subject to an automatic annual increase of the lesser of one percent of the outstanding shares of Keysight common stock on November 1 or an amount determined by the Compensation and Human Capital Committee of our board of directors. Under the terms of the ESPP, in no event shall the number of shares issued under the ESPP exceed 75 million shares. Under our ESPP, employees purchased 541,241 shares for $56 million in 2021, 628,449 shares for $53 million in 2020 and 810,172 shares for $48 million in 2019. As of October 31, 2021, common stock authorized and available for issuance under our ESPP was 19,322,516 shares, which includes shares issued in November 2021 to participants in consideration of the aggregate contribution of $30 million as of October 31, 2021. Impact of Share-based Compensation Awards Share-based compensation expense has been recognized using a straight-line amortization method. The impact of share-based compensation expense on our consolidated statement of operations was as follows: Year Ended October 31, 2021 2020 2019 (in millions) Cost of products and services $ 19 $ 16 $ 14 Research and development 21 19 16 Selling, general and administrative 64 58 52 Total share-based compensation expense $ 104 $ 93 $ 82 Income tax benefit realized from exercised stock options and similar awards $ 10 $ 12 $ 9 The expense for 2021, 2020 and 2019 includes mark-to-market adjustments for financial metrics-based performance awards of $5 million, $2 million and $8 million, respectively. At October 31, 2021 and 2020, there was no share-based compensation expense capitalized within inventory. Valuation Assumptions The following assumptions were used to estimate the fair value of TSR-based performance awards. Year Ended October 31, 2021 2020 2019 Volatility of Keysight shares 36% 28% 25% Volatility of index 23% 13% 12% Price-wise correlation with selected peers 67% 61% 57% The TSR-based performance awards were valued using a Monte Carlo simulation model, which requires the use of highly subjective and complex assumptions, including the price volatility of the underlying stock. The estimated fair value of restricted stock awards and the financial metrics-based performance awards is determined based on the market price of Keysight’s common stock on the grant date. The compensation cost for financial metrics-based performance awards reflect the cost of awards that are probable to vest at the end of the performance period. Share-based Payment Award Activity Employee Stock Options We have not granted any stock options post fiscal year 2015. As of October 31, 2021 and 2020, the options outstanding were approximately 0.3 million and 0.4 million, respectively, having a weighted average exercise price of $29 and $28, respectively. During the year, 0.1 million options, with an intrinsic value of $14 million were exercised at the weighted average exercise price of $26. The intrinsic value of the options exercised during 2020 and 2019 was $14 million and $39 million, respectively, at the weighted average exercise price of $27. The options outstanding as of October 31, 2021 have a weighted average contractual remaining life of 2.4 years and an intrinsic value of $39 million, based on Keysight's closing stock price of $180.02 at October 31, 2021. Non-vested Awards The following table summarizes non-vested award activity in 2021 for our LTP Program and restricted stock unit awards: Shares Weighted (in thousands) Non-vested at October 31, 2020 2,634 $ 67 Granted 743 124 Vested (1,377) 54 Forfeited (47) 87 LTP Program incremental 228 52 Non-vested at October 31, 2021 2,181 $ 93 As of October 31, 2021, the unrecognized share-based compensation cost for non-vested stock awards was approximately $62 million, which is expected to be amortized over a weighted average period of 2.4 years. Unrecognized share-based compensation cost does not include expense for operating margin based performance awards for which the target have not yet been set. The total fair value of stock awards vested was $165 million for 2021, $167 million for 2020 and $89 million for 2019. See Note 5, "Income Taxes," for the tax impact on share-based award exercises and vesting.

INCOME TAXES

INCOME TAXES	12 Months Ended
INCOME TAXES	Oct. 31, 2021
Income Tax Disclosure [Abstract]
INCOME TAXES	5. INCOME TAXES The domestic and foreign components of income before taxes are: Year Ended October 31, 2021 2020 2019 (in millions) U.S. operations $ 89 $ 68 $ 20 Non-U.S. operations 921 693 695 Total income before taxes $ 1,010 $ 761 $ 715 The provision for income taxes was comprised of: Year Ended October 31, 2021 2020 2019 (in millions) U.S. federal taxes: Current $ 71 $ 16 $ 10 Deferred (10) 1 (8) Non-U.S. taxes: Current 90 77 91 Deferred (30) 36 14 State taxes, net of federal benefit: Current 8 — (5) Deferred (13) 4 (8) Total provision for income taxes $ 116 $ 134 $ 94 The following table presents the components of the deferred tax assets and liabilities: October 31, 2021 2020 (in millions) Deferred Tax Assets Inventory $ 18 $ 10 Intangibles 559 597 Property, plant and equipment 31 21 Warranty reserves 8 8 Pension benefits 34 90 Employee benefits, other than retirement 39 28 Net operating loss, capital loss, and credit carryforwards 315 286 Share-based compensation 17 16 Deferred revenue 35 32 Lease obligations 53 38 Others 7 8 Total deferred tax assets 1,116 1,134 Tax valuation allowance (231) (238) Total deferred tax assets less valuation allowance 885 896 Deferred Tax Liabilities Intangibles (41) (38) Property, plant and equipment (26) (31) Warranty reserves — (1) Pension benefits (84) (84) Employee benefits, other than retirement (1) (1) Unremitted earnings of foreign subsidiaries (21) (37) Deferred revenue (4) (3) ROU lease assets (51) (36) Others (14) (11) Total deferred tax liabilities (242) (242) Total deferred tax assets, net of deferred tax liabilities $ 643 $ 654 The decrease in deferred tax assets in 2021 as compared to 2020 primarily relates to a decrease in net pension liabilities in the U.S. and Germany and a decrease in intangible assets in Singapore due to amortization, partially offset by an increase in the value of the net operating loss carryforwards in the U.K. due to a tax rate change. As of October 31, 2021, there was a deferred tax liability of $21 million for the tax liability expected to be imposed upon the repatriation of unremitted foreign earnings that are not considered indefinitely reinvested. As of October 31, 2021, the cumulative amount of undistributed earnings considered indefinitely reinvested was $105 million. No deferred tax liability has been recognized on the basis difference created by such earnings since it is our intention to indefinitely reinvest those earnings in the company’s foreign operations. The amount of the unrecognized deferred tax liability on the indefinitely reinvested earnings was $4 million. Valuation allowances require an assessment of both positive and negative evidence when determining whether it is more likely than not that deferred tax assets are recoverable. Such assessment is required on a jurisdiction-by-jurisdiction basis. The $231 million and $238 million valuation allowances as of October 31, 2021 and 2020, respectively, are mainly related to net operating losses in Luxembourg and the U.K., capital losses in the U.K., and California research credits. The decrease in valuation allowance from October 31, 2020 to October 31, 2021 is primarily due to a release of valuation allowance on Netherlands net operating losses, partially offset by an increase in valuation allowance on U.K. capital and net operating losses. The release of the Netherlands valuation allowance was due to a tax law change allowing net operating losses to be carried forward indefinitely. The increase in the valuation allowance on U.K. capital and net operating losses is primarily due to a tax rate change that increased the after-tax value of the losses subject to valuation allowance. We will maintain a valuation allowance until sufficient positive evidence exists to support a reversal. At October 31, 2021, we had U.S. federal net operating loss carryforwards of approximately $6 million and U.S. state net operating loss carryforwards, primarily from acquired entities, of approximately $51 million. The U.S. federal net operating losses will expire in years beginning 2027 through 2029 if not utilized. Of the total U.S. state net operating loss carryforwards, $48 million are subject to change of ownership limitations under various state tax provisions and are subject to valuation allowance. The U.S. state net operating loss carryforwards will begin to expire in 2029, if not utilized. At October 31, 2021, we had U.S. state research credit carryforwards of approximately $23 million. Of the total U.S. state research credit carryforwards, $21 million are California research credits that can be carried forward indefinitely. Due to change of ownership limitations, however, $17 million of California research credits are subject to valuation allowance. At October 31, 2021, we also had foreign net operating loss carryforwards of approximately $945 million. Of the total foreign loss, $8 million will expire in years beginning 2024 through 2027. The remaining loss is comprised of $670 million that will expire in years beginning 2035 through 2038 if not utilized and $267 million that has an indefinite life. Of the $945 million of foreign net operating loss carryforward, $690 million is subject to a valuation allowance. At October 31, 2021, we had foreign capital loss carryforwards of approximately $150 million with an indefinite life and $5 million of tax credits in foreign jurisdictions with an indefinite life. The foreign capital loss carryforwards are subject to valuation allowance as we do not expect to generate income of the type required in order to utilize these losses. The differences between the U.S. federal statutory income tax rate and our effective tax rate are: Year Ended October 31, 2021 2020 2019 (in millions) Profit before tax times statutory rate $ 212 $ 160 $ 150 State income taxes, net of federal benefit (6) 4 (6) Current U.S. tax on foreign earnings 58 39 48 Deferred taxes on foreign earnings not considered indefinitely reinvested 1 8 2 U.S. benefit on foreign sales (16) (8) (13) U.S. research credits (15) (14) (12) Non-U.S. income taxed at different rates (105) (64) (70) Change in unrecognized tax benefits 17 8 (12) Share-based compensation (6) (7) (5) Officers’ compensation 6 5 4 Acquired entity integration (15) — — Release of non-US valuation allowance (17) — — Other, net 2 3 8 Provision for income taxes $ 116 $ 134 $ 94 Effective tax rate 11 % 18 % 13 % The effective tax rate was 11 percent, 18 percent, and 13 percent for 2021, 2020 and 2019, respectively. The tax rate in each of these years was lower than the U.S. statutory rate primarily due to the proportion of worldwide earnings that are taxed at lower statutory tax rates in non-U.S. jurisdictions. The decrease in the effective tax rate from 2020 to 2021 is due to a change in the jurisdictional mix of non-U.S. earnings offset by an increase in U.S. taxes on non-U.S. earnings, a decrease due to the release of valuation allowance on Netherlands net operating losses in 2021, and a decrease due to the 2021 actual tax impact of acquired entity integration as compared to the estimate at acquisition based on the finalization of the integration plan. The increase in the effective tax rate from 2019 to 2020 is primarily due to the 2019 benefit from a release of tax reserves. Keysight benefits from tax incentives in several jurisdictions, most significantly in Singapore and Malaysia, that have granted us tax incentives that require renewal at various times in the future. The tax incentives provide lower rates of taxation on certain classes of income and require thresholds of investments and employment or specific types of income in those jurisdictions. The Singapore tax incentive is due for renewal in 2024, and the Malaysia incentive is due for renewal in 2025. The impact of the tax incentives decreased income taxes by $70 million, $53 million and $47 million in 2021, 2020 and 2019, respectively. The benefit of the tax incentives on net income per share (diluted) was approximately $0.38, $0.28 and $0.25 in 2021, 2020 and 2019, respectively. The increase in the tax benefit from 2020 to 2021 is primarily due to change in the jurisdictional mix of non-U.S. earnings, which increased the earnings taxed at incentive tax rates in 2021. The breakdown between current and long-term income tax assets and liabilities, excluding deferred tax assets and liabilities, was as follows for the years 2021 and 2020: October 31, 2021 2020 (in millions) Current income tax assets (included within other current assets) $ 30 $ 53 Current income tax liabilities (included within income and other taxes payable) (44) (40) Long-term income tax liabilities (included within other long-term liabilities) (219) (212) Total $ (233) $ (199) The calculation of our tax liabilities involves uncertainties in the application of complex tax law and regulations in a multitude of jurisdictions. Although the guidance on the accounting for uncertainty in income taxes prescribes the use of a recognition and measurement model, the determination of whether an uncertain tax position has met those thresholds will continue to require significant judgment by management. In accordance with the guidance on the accounting for uncertainty in income taxes, for all U.S. and other tax jurisdictions, we recognize potential liabilities for anticipated tax audit issues based on our estimate of whether, and the extent to which, additional taxes and interest will be due. We include interest and penalties related to unrecognized tax benefits within the provision for income taxes in the consolidated statements of operations. Accrued interest and penalties are included on the related tax liability line in the consolidated balance sheet. At this time, management does not believe that the outcome of any future or currently ongoing examination will have a material impact on our consolidated financial statements. We believe that we have an adequate provision for any adjustments that may result from tax examinations. However, the outcome of tax examinations cannot be predicted with certainty. If the resolution of any tax issues that arise in any future or currently ongoing examinations are inconsistent with management’s expectations, we may be required to adjust our tax provision for income taxes in the period in which such resolution occurs. The aggregate changes in the balances of our unrecognized tax benefits including all federal, state and foreign tax jurisdictions are as follows: 2021 2020 2019 (in millions) Gross Balance, beginning of year $ 237 $ 226 $ 234 Additions due to acquisition — — 9 Additions for tax positions related to the current year 19 13 18 Additions for tax positions from prior years — 2 — Reductions for tax positions from prior years (3) (1) (32) Statute of limitations expirations (4) (3) (3) Gross Balance, end of year $ 249 $ 237 $ 226 As of October 31, 2021, the total amount of gross unrecognized tax benefits, excluding interest and penalties, was $249 million, of which, if recognized, $229 million would impact our effective tax rate. However, approximately $3 million of the unrecognized tax benefits were related to acquisitions, which if recognized within certain agreed upon time periods, would result in the recognition of an offsetting indemnification asset. As of October 31, 2020, the total amount of gross unrecognized tax benefits, excluding interest and penalties, was $237 million, of which, if recognized, $221 million would impact our effective tax rate. As of October 31, 2019, the total amount of gross unrecognized tax benefits was $226 million, of which, if recognized, $216 million would impact our effective tax rate. Cumulatively, interest and penalties accrued as of the end of October 31, 2021, 2020 and 2019 were $37 million, $33 million and $28 million, respectively. We recognized tax expense of $4 million, $5 million, and $2 million for interest and penalties related to unrecognized tax benefits in 2021, 2020 and 2019, respectively. We recorded an additional $4 million of interest and penalties related to unrecognized tax benefits in 2019 through purchase accounting related to acquisitions. The open tax years for the U.S. federal income tax return and most state income tax returns are from November 1, 2017 through the current tax year. For the majority of our foreign entities, the open tax years are from November 1, 2015 through the current tax year. For certain foreign entities, the tax years remain open, at most, back to the year 2008. Given the number of years and numerous matters that remain subject to examination in various tax jurisdictions, we are unable to estimate the range of possible changes to the balance of our unrecognized tax benefits. Keysight’s fiscal year 2018 U.S. federal income tax return is currently under examination by the Internal Revenue Service. The Tax Cuts and Jobs Act was enacted in December 2017 and imposed a one-time U.S. tax on foreign earnings not previously repatriated to the U.S., known as the Transition Tax, which was reported in Keysight’s 2018 U.S. federal income tax return. The company is being audited in Malaysia for the 2008 tax year. This tax year predates our separation from Agilent. However, pursuant to the agreement between Agilent and Keysight pertaining to tax matters, as finalized at the time of separation, for certain entities, including Malaysia, any historical tax liability is the responsibility of Keysight. In the fourth quarter of fiscal year 2017, Keysight paid income taxes and penalties of $68 million on gains related to intellectual property rights. Our appeals to both the Special Commissioners of Income Tax and the High Court in Malaysia have been unsuccessful. We have filed a Notice of Appeal with the Court of Appeal. The company believes there are numerous defenses to the current assessment; the statute of limitations for the 2008 tax year in Malaysia was closed, and the income in question is exempt from tax in Malaysia. The company is disputing this assessment and pursuing all avenues to resolve this issue favorably for the company.

NET INCOME PER SHARE

NET INCOME PER SHARE	12 Months Ended
NET INCOME PER SHARE	Oct. 31, 2021
Earnings Per Share [Abstract]
NET INCOME PER SHARE	6. NET INCOME PER SHARE The following table presents the calculation of basic and diluted net income per share (in millions, except per-share amounts): Year Ended October 31, 2021 2020 2019 (in millions) Net income $ 894 $ 627 $ 621 Basic weighted-average shares 185 187 188 Potential common shares — stock options and other employee stock plans 2 2 3 Diluted weighted-average shares 187 189 191 Net income per share - basic $ 4.84 $ 3.35 $ 3.31 Net income per share - diluted $ 4.78 $ 3.31 $ 3.25 The dilutive effect of share-based awards is reflected in diluted net income per share by application of the treasury stock method, which includes consideration of unamortized share-based compensation expense and the dilutive effect of in-the-money options and non-vested RSUs. Under the treasury stock method, the amount the employee must pay for exercising stock options and unamortized share-based compensation expense are collectively assumed to be used to repurchase hypothetical shares. We exclude stock options with exercise prices greater than the average market price of our common stock from the calculation of diluted earnings per share because their effect would be anti-dilutive. For the years ended 2021, 2020 and 2019, we excluded zero shares from the calculation of diluted earnings per share. In addition, we also exclude from the calculation of diluted earnings per share, stock options, ESPP, LTP Program and restricted stock awards, whose combined exercise price and

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS	12 Months Ended
GOODWILL AND OTHER INTANGIBLE ASSETS	Oct. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	7. GOODWILL AND OTHER INTANGIBLE ASSETS The goodwill balances as of October 31, 2021, 2020 and 2019 and the movements in 2021 and 2020 for each of our reportable segments were as follows: CSG EISG Total (in millions) Goodwill at October 31, 2019 $ 942 $ 267 $ 1,209 Foreign currency translation impact 8 6 14 Goodwill arising from acquisitions 34 280 314 Goodwill at October 31, 2020 984 553 1,537 Foreign currency translation impact (15) 6 (9) Goodwill arising from acquisitions 100 — 100 Goodwill at October 31, 2021 $ 1,069 $ 559 $ 1,628 There were no impairments of goodwill during the years ended October 31, 2021, 2020 and 2019. As of October 31, 2021, 2020 and 2019, accumulated impairment losses on goodwill were $709 million. Other intangible assets as of October 31, 2021 and 2020 consisted of the following: October 31, 2021 October 31, 2020 Gross Carrying Amount Accumulated Amortization Net Book Value Gross Accumulated Net Book (in millions) Developed technology $ 969 $ 866 $ 103 $ 915 $ 749 $ 166 Backlog 17 17 — 17 14 3 Trademark/Tradename 36 28 8 35 25 10 Customer relationships 389 235 154 364 184 180 Total amortizable intangible assets 1,411 1,146 265 1,331 972 359 In-Process R&D 7 — 7 2 — 2 Total $ 1,418 $ 1,146 $ 272 $ 1,333 $ 972 $ 361 In 2021, we recorded additions to goodwill and other intangible assets of $100 million and $83 million, respectively, due to the acquisition of Sanjole and two other acquisitions. In 2020, we recorded additions to goodwill and other intangible assets of $314 million and $88 million, respectively, due to the acquisition of Eggplant and two other acquisitions. For additional information on the acquisitions, see Note 2, "Acquisitions." The impact of foreign exchange translation on other intangible assets in 2021 and 2020 was $3 million and $2 million, respectively. Amortization of other intangible assets was $174 million in 2021, $220 million in 2020 and $210 million in 2019. Estimated intangible assets amortization expense for each of the five succeeding fiscal years is as follows: Amortization expense (in millions) 2022 $ 100 2023 $ 77 2024 $ 38 2025 $ 21 2026 $ 13 Thereafter $ 16 Goodwill is assessed for impairment on a reporting unit basis at least annually in the fourth quarter, as of September 30, after the annual update to our long-term financial forecasts during our strategic planning cycle, or more frequently when events and circumstances occur indicating that the recorded goodwill may be impaired. The impairment test compares the fair value of a reporting unit with its carrying amount, with an impairment charge recorded for the amount by which the carrying amount exceeds the reporting unit’s fair value up to a maximum amount of the goodwill balance for the reporting unit. As defined in the authoritative guidance, a reporting unit is an operating segment or one level below an operating segment. We determine fair values for each of the reporting units using the market approach, when available and appropriate, or the income approach, or a combination of both. If multiple valuation methodologies are used, the results are weighted appropriately. Valuations using the market approach are derived from metrics of publicly traded comparable companies. The selections of comparable businesses are based on the markets in which our reporting units operate, giving consideration to risk profiles, size, geography, and diversity of products and services. Under the income approach, fair value is determined based on the present value of estimated future cash flows, discounted at an appropriate risk-adjusted rate. We use our internal forecasts to estimate future cash flows and include an estimate of long-term future growth rates based on our most recent views of the long-term outlook for each business. During the fourth quarter of 2021, we performed our annual impairment test of goodwill for all our reporting units using a qualitative approach, except for our Eggplant reporting unit, which is included in our EISG reportable segment, for which the test was performed using a quantitative approach. The income and market approaches were used to determine the fair value of the Eggplant reporting unit. With respect to the income approach, the discounted cash flow method was used, which included a forecasted cash flow projection and an estimated terminal value. The market approach used revenue, gross margin and EBITDA multiples to develop an estimate of fair value. A weighting of 75 percent and 25 percent was applied to the income and market approaches, respectively, to determine the fair value of the Eggplant reporting unit. The income approach was given a larger weighting based on the underlying detailed financial projections prepared during the strategic planning cycle that reflect the financial and operational facts and circumstances specific to Eggplant as of the valuation date. Based on the results of our annual impairment tests, the fair value of each of our reporting units exceeded the carrying value. As of October 31, 2021, we determined that no goodwill impairment exists and that the remaining goodwill is recoverable for all of our reporting units; however, there can be no assurance that goodwill will not be impaired in future periods. Estimating the fair value of reporting units requires the use of estimates and significant judgments that are based on a number of factors including actual operating results. It is possible that the judgments and estimates described above could change in future periods. In 2020, we performed our annual impairment test of goodwill for all our reporting units using a qualitative approach. Based on the results of our annual impairment tests, the fair value of each of our reporting units exceeded the carrying value. In 2019, we performed our annual impairment test of goodwill for all our reporting units using a qualitative approach, except for our previous Ixia Solutions Group ("ISG") reporting unit, which was the only reporting unit in our previous ISG reportable segment, for which the test was performed using a quantitative approach. The income and market approaches were used to determine the fair value of the ISG reporting unit. With respect to the income approach, the discounted cash flow method was used, which included an eight-year future cash flow projection and an estimated terminal value. The market approach used revenue and EBITDA multiples to develop an estimate of fair value. A weighting of 60 percent and 40 percent was applied to the income and market approaches, respectively, to determine the fair value of the ISG reporting unit. The income approach was given a larger weighting based on the underlying detailed financial projections prepared during the strategic planning cycle that reflect the financial and operational facts and circumstances specific to ISG as of the valuation date. Based on the results of our annual impairment tests, the fair value of each of our reporting units exceeded the carrying value. We review long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. We performed an impairment test of Eggplant and ISG's long-lived assets in 2021 and 2019, respectively, which preceded the quantitative test of goodwill in accordance with the guidance, and concluded that no impairment charge was required.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	12 Months Ended
FAIR VALUE MEASUREMENTS	Oct. 31, 2021
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	8. FAIR VALUE MEASUREMENTS The authoritative guidance defines fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at fair value, we consider the principal or most advantageous market and assumptions that market participants would use when pricing the asset or liability. Fair Value Hierarchy The guidance establishes a fair value hierarchy that prioritizes inputs used in valuation techniques into three levels. A financial instrument's categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. There are three levels of inputs that may be used to measure fair value: Level 1 — applies to assets or liabilities for which there are quoted prices in active markets for identical assets or liabilities. Level 2 — applies to assets or liabilities for which there are inputs other than quoted prices included within Level 1 that are observable, either directly or indirectly, for the asset or liability such as: quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in less active markets; or other inputs that can be derived principally from, or corroborated by, observable market data. Level 3 — applies to assets or liabilities for which there are unobservable inputs to the valuation methodology that are significant to the measurement of the fair value of the assets or liabilities. Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis Financial assets and liabilities measured at fair value on a recurring basis as of October 31, 2021 and 2020 were as follows: Fair Value Measurements as of October 31, 2021 2020 Total Level 1 Level 2 Level 3 Other Total Level 1 Level 2 Level 3 Other (in millions) Assets: Short-term Cash equivalents Money market funds $ 1,296 $ 1,296 $ — $ — $ — $ 1,047 $ 1,047 $ — $ — $ — Derivative instruments (foreign exchange contracts) 6 — 6 — — 3 — 3 — — Long-term Derivative instruments (interest rate swaps) 48 — 48 — — 23 — 23 — — Equity investments 60 60 — — — 52 52 — — — Equity investments - other 10 — — — 10 9 — — — 9 Total assets measured at fair value $ 1,420 $ 1,356 $ 54 $ — $ 10 $ 1,134 $ 1,099 $ 26 $ — $ 9 Liabilities: — Short-term Derivative instruments (foreign exchange contracts) $ 4 $ — $ 4 $ — $ — $ 4 $ — $ 4 $ — $ — Long-term Deferred compensation liability 24 — 24 — — 18 — 18 — — Total liabilities measured at fair value $ 28 $ — $ 28 $ — $ — $ 22 $ — $ 22 $ — $ — Our money market funds and equity investments with readily determinable fair values are measured at fair value using quoted market prices and, therefore, are classified within Level 1 of the fair value hierarchy. Equity investments without readily determinable fair values that are measured at cost adjusted for observable changes in price or impairments are not categorized in the fair value hierarchy and are presented as "Equity investments - other" in the tables above. Our deferred compensation liability is classified as Level 2 because the inputs used in the calculations are observable, although the values are not directly based on quoted market prices. Our derivative financial instruments are classified within Level 2 as there is not an active market for each hedge contract, but the inputs used to calculate the value of the instruments are tied to active markets. Equity investments, including securities that are earmarked to pay the deferred compensation liability, and the deferred compensation liability are reported at fair value, with gains or losses resulting from changes in fair value recognized in earnings. Certain derivative instruments are reported at fair value, with unrealized gains and losses, net of tax, included in accumulated other comprehensive income (loss). All of our investments are subject to periodic impairment review. The impairment analysis requires significant judgment to identify events or circumstances that would likely have a significant adverse effect on the future value of the investment. There was no impairment recognized in 2021, 2020 and 2019. Realized gains and losses from the sale of investments are recorded in earnings. Net recognized gains on equity investments were as follows: Year Ended October 31, 2021 2020 2019 (in millions) Net realized gains on investments sold $ — $ — $ 1 Net unrealized gains on investments still held $ 4 $ 11 $ 6 Financial Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis Assets measured at fair value on a non-recurring basis consisted of goodwill and intangible assets. See Note 7, "Goodwill and Other Intangible Assets" for more information. Goodwill Fair value assessments of the reporting unit and the reporting unit's net assets, which are performed for goodwill impairments tests, are considered Level 3 measurements due to the significance of unobservable inputs developed using company-specific information. We considered a market approach as well as an income approach using the discounted cash flow model to determine the fair value of the reporting unit. Intangible Assets We utilized an income approach for estimating the fair value of intangible assets. The future cash flows used in the analysis are based on internal cash flow projections based on our long-range plans and include significant assumptions by management. Accordingly, the fair value assessment of the long-lived assets is considered a Level 3 fair value measurement.

DERIVATIVES

DERIVATIVES	12 Months Ended
DERIVATIVES	Oct. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES	9. DERIVATIVES We are exposed to foreign currency exchange rate fluctuations and interest rate changes in the normal course of our business. As part of our risk management strategy, we use derivative instruments, primarily forward contracts to hedge economic and/or accounting exposures resulting from changes in foreign currency exchange rates. Cash Flow Hedges We enter into foreign exchange contracts to hedge our forecasted operational cash flow exposures resulting from changes in foreign currency exchange rates. These foreign exchange contracts, carried at fair value, have maturities based on a rolling period of up to twelve months. These derivative instruments are designated and qualify as cash flow hedges under the criteria prescribed in the authoritative guidance. The changes in the value of the derivative instrument included in the assessment of effectiveness are recognized in accumulated other comprehensive income and reclassified into earnings when the forecasted transaction occurs in the same financial statement line item in the consolidated statement of operations where the earnings effect of the hedged item is presented. If it becomes probable that the forecasted transaction will not occur, the hedge relationship will be de-designated and amounts accumulated in other comprehensive income will be reclassified into earnings in the current period. Gains and losses on the derivative instrument representing hedge components excluded from the assessment of effectiveness are amortized to earnings on a straight-line basis over the tenor of the hedge and are presented in the same financial statement line of the consolidated statement of operations where the earnings effect of the hedged item is presented. For hedges executed prior to February 1, 2020, these gains and losses were recognized immediately in earnings. In fiscal 2020, we entered into forward starting interest rate swaps with an aggregate notional amount of $600 million associated with future interest payments on anticipated debt issuances through fiscal year 2024. The contract term allows us to lock-in a treasury rate on anticipated debt issuances. These derivative instruments are designated and qualify as cash flow hedges under the criteria prescribed in the authoritative guidance. The changes in fair value of these derivative instruments have been recognized in accumulated other comprehensive income (loss). For the year ended October 31, 2021, a gain of $26 million was recognized in accumulated other comprehensive income (loss). Amounts associated with these cash flow hedges will be reclassified to interest expense in the consolidated statement of operations when future interest payments on the anticipated debt occur. Other Hedges Additionally, we enter into foreign exchange contracts to hedge monetary assets and liabilities that are denominated in currencies other than the functional currency of our subsidiaries. These foreign exchange contracts are carried at fair value and do not qualify for hedge accounting treatment and are not designated as hedging instruments. Changes in value of the derivative are recognized in other income (expense), net, in the consolidated statement of operations, in the current period, along with the offsetting foreign currency gain or loss on the underlying assets or liabilities. Our use of derivative instruments exposes us to credit risk to the extent that the counterparties may be unable to meet the terms of the agreement. We do, however, seek to mitigate such risks by limiting our counterparties to major financial institutions, which are selected based on their credit ratings and other factors. We have established policies and procedures for mitigating credit risk that include establishing counterparty credit limits, monitoring credit exposures, and continually assessing the creditworthiness of counterparties. The number of open foreign exchange forward contracts designated as "cash flow hedges" and "not designated as hedging instruments" was 219 and 68, respectively, as of October 31, 2021. The aggregated notional amounts by currency and designation as of October 31, 2021 were as follows: Derivatives in Derivatives Not Designated as Hedging Instruments Forward Forward Currency Buy/(Sell) Buy/(Sell) (in millions) Euro $ 35 $ 13 British Pound 19 (87) Singapore Dollar 25 28 Malaysian Ringgit 98 10 Japanese Yen (101) (42) Other currencies 13 (44) Total $ 89 $ (122) Derivative instruments are subject to master netting arrangements and are disclosed gross in the consolidated balance sheet. The gross fair values and balance sheet presentation of derivative instruments held as of October 31, 2021 and 2020 were as follows: Fair Values of Derivative Instruments Assets Derivatives Liabilities Derivatives Fair Value Fair Value Balance Sheet Location October 31, October 31, Balance Sheet Location October 31, October 31, (in millions) Derivatives designated as hedging instruments: Cash flow hedges Foreign exchange contracts Other current assets $ 5 $ 2 Other accrued liabilities $ 1 $ 3 Interest rate swap contracts: Other assets 48 23 Derivatives not designated as hedging instruments: Foreign exchange contracts Other current assets 1 1 Other accrued liabilities 3 1 Total derivatives $ 54 $ 26 $ 4 $ 4 The effect of derivative instruments for foreign exchange contracts designated as hedging instruments and not designated as hedging instruments in our consolidated statement of operations was as follows: 2021 2020 2019 (in millions) Derivatives designated as hedging instruments: Cash flow hedges Interest rate swap contracts: Gain (loss) recognized in accumulated other comprehensive income (loss) $ 26 $ 23 $ — Foreign exchange contracts: Gain (loss) recognized in accumulated other comprehensive income (loss) 6 (3) (5) Gain (loss) reclassified from accumulated other comprehensive income (loss) into earnings: Cost of products — (3) (1) Selling, general and administrative 2 (1) (2) Gain (loss) excluded from effectiveness testing recognized in earnings based on changes in fair value: Cost of products — 2 3 Gain (loss) excluded from effectiveness testing recognized in earnings based on amortization approach: Cost of products 1 1 — Selling, general and administrative 1 — — Derivatives not designated as hedging instruments: Gain (loss) recognized in other income (expense), net $ (3) $ 4 $ (5) The estimated amount at October 31, 2021 expected to be reclassified from accumulated other comprehensive income (loss) to earnings within the next twelve months is a gain of $3 million.

LEASES (Notes)

LEASES (Notes)	12 Months Ended
LEASES (Notes)	Oct. 31, 2021
Leases [Abstract]
Lessee, Operating Leases [Text Block]	10. LEASES We have operating leases for items including office space, order fulfillment, sales and service centers, R&D and certain equipment, primarily automobiles. Our leases have remaining terms of up to 13 years, some of which may include options to extend the leases, primarily for 3 to 5 years. We consider options to renew in our lease terms and measurement of ROU assets and lease liabilities if we determine they are reasonably certain to be exercised. The weighted average lease term of our operating leases was 8.2 years and 7.3 years as of October 31, 2021 and 2020, respectively. The weighted average discount rate of our operating leases was 3 percent as of both October 31, 2021 and 2020. The following table summarizes the components of our lease cost: Year ended October 31, 2021 2020 (in millions) Operating lease cost $ 51 $ 49 Variable lease cost $ 14 $ 16 Short-term lease costs, sublease income and finance lease costs were immaterial for the year ended October 31, 2021 and 2020. Supplemental cash flow information related to our operating leases was as follows: Year ended October 31, 2021 2020 (in millions) Cash payments for operating leases $ 53 $ 48 ROU assets obtained in exchange for operating lease obligations $ 78 $ 67 The maturities of our operating leases as of October 31, 2021 with initial terms exceeding one year were as follows: Operating Leases (in millions) 2022 $ 45 2023 38 2024 30 2025 24 Thereafter 123 Total undiscounted lease liability 260 Imputed interest 28 Total discounted lease liability $ 232 As of October 31, 2021, we did not have material leases that had not yet commenced. Rental income from leasing out excess facilities was $11 million for both the year ended October 31, 2021 and 2020 and is included in other operating expense (income), net. Other lessor arrangements were immaterial.

DEBT

DEBT	12 Months Ended
DEBT	Oct. 31, 2021
Debt Disclosure [Abstract]
DEBT	11. DEBT The following table summarizes the components of our long-term debt: October 31, 2021 2020 (in millions) 2024 Senior Notes at 4.55% ($600 face amount less unamortized costs of $1 and $2) $ 599 $ 598 2027 Senior Notes at 4.60% ($700 face amount less unamortized costs of $4 and $5) 696 695 2029 Senior Notes at 3.00% ($500 face amount less unamortized costs of $4 and $4) 496 496 $ 1,791 $ 1,789 Short-Term Debt Revolving Credit Facility On July 30, 2021, we entered into a new credit agreement that amended and restated our existing credit agreement dated February 15, 2017 in its entirety, and provides for a $750 million, five-year unsecured revolving credit facility (the “Revolving Credit Facility”) that will expire on July 30, 2026 and bears interest at an annual rate of LIBOR + 1 percent along with a facility fee of 0.125 percent per annum. I n addition, the new credit agreement permits the company, subject to certain customary conditions, on one or more occasions to request to increase the total commitments under the Revolving Credit Facility by up to $250 million in the aggregate. We may use amounts borrowed under the facility for general corporate purposes. As of October 31, 2021 and October 31,2020, we had no borrowings outstanding under the Revolving Credit Facility. We were in compliance with the covenants of the Revolving Credit Facility during the year ended October 31, 2021. Other During the year ended October 31, 2020, we repaid $7 million of debt assumed with the acquisition of Eggplant. Long-Term Debt The below senior notes are unsecured and rank equally in right of payment with all of our other senior unsecured indebtedness. We were in compliance with the covenants of our senior notes during the year ended October 31, 2021. 2024 Senior Notes In October 2014, the company issued an aggregate principal amount of $600 million in unsecured senior notes ("2024 Senior Notes"). The 2024 Senior Notes were issued at 99.966 percent of their principal amount. The notes will mature on October 30, 2024, and bear interest at a fixed rate of 4.55 percent per annum. The interest is payable semi-annually on April 30 and October 30 of each year. We incurred issuance costs of $5 million in connection with the 2024 Senior Notes that are being amortized to interest expense over the term of the senior notes. 2027 Senior Notes In April 2017, the company issued an aggregate principal amount of $700 million in unsecured senior notes ("2027 Senior Notes"). The 2027 Senior Notes were issued at 99.873 percent of their principal amount. The notes will mature on April 6, 2027 and bear interest at a fixed rate of 4.60 percent per annum. The interest is payable semi-annually on April 6 and October 6 of each year, commencing on October 6, 2017. We incurred issuance costs of $6 million in connection with the 2027 Senior Notes that, along with the debt discount, are being amortized to interest expense over the term of the senior notes. 2029 Senior Notes In October 2019, the company issued an aggregate principal amount of $500 million in unsecured senior notes ("2029 Senior Notes"). The 2029 Senior Notes were issued at 99.914 percent of their principal amount. The notes will mature on October 30, 2029 and bear interest at a fixed rate of 3.00 percent per annum. The interest is payable semi-annually on April 30 and October 30 of each year, commencing on April 30, 2020. We incurred issuance costs of $4 million in connection with the 2029 Senior Notes that, along with the debt discount are being amortized to interest expense over the term of the senior notes. Letter of Credit

RETIREMENT PLANS AND POST RETIR

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS	12 Months Ended
RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS	Oct. 31, 2021
Retirement Benefits [Abstract]
RETIREMENT PLANS AND POST-RETIREMENT PENSION PLANS	12. RETIREMENT PLANS AND POST-RETIREMENT BENEFIT PLANS General. The majority of our employees are covered under various defined benefit and/or defined contribution retirement plans. Additionally, we sponsor post-retirement health care benefits for our eligible U.S. employees. We provide U.S. employees who meet eligibility criteria under the Keysight Technologies, Inc. Retirement Plan ("RP") defined benefits that are based on an employee's base or target pay during the years of employment and on length of service. For eligible employees' service through October 31, 1993, the benefit payable under the RP is reduced by any amounts due to the eligible employees' service under our defined contribution Deferred Profit-Sharing Plan ("DPSP"), which was closed to new participants as of November 1993. The obligations under the DPSP equal the fair value of the DPSP assets, which was $267 million as of October 31, 2021. Employees hired on or after August 1, 2015 are not eligible to participate in the RP or the Keysight Technologies, Inc. Health Plan for Retirees ("U.S. Post-Retirement Benefit Plan"). In addition, in the U.S. we maintain the Supplemental Benefits Retirement Plan ("SBRP"), a supplemental unfunded non-qualified defined benefit plan to provide benefits that would be provided under the RP but for limitations imposed by the Internal Revenue Code. The RP and the SBRP comprise the "U.S. Plans." Eligible employees outside the U.S. generally receive retirement benefits under various retirement plans ("Non-U.S. Plans") based on factors such as years of service and/or employee compensation levels. Eligibility is generally determined in accordance with local statutory requirements. Certain of our immaterial non-U.S. defined benefit plans are not included in these disclosures. 401(k) defined contribution plan. Eligible U.S. employees may participate in the Keysight Technologies, Inc. 401(k) Plan (the "401(k) Plan"). Enrollment in the 401(k) Plan is automatic for employees who meet eligibility requirements unless they decline participation. We provide matching contributions of up to 4 percent of annual eligible compensation for employees hired prior to August 1, 2015 and up to 6 percent for employees hired thereafter. The 401(k) Plan employer expense included in income from operations was $28 million in 2021, $27 million in 2020 and $25 million in 2019. Post-retirement medical benefit plans. In addition to receiving retirement benefits, U.S. employees who meet eligibility requirements as of their termination date may participate in the U.S. Post-Retirement Benefit Plans. Components of net periodic benefit cost. The company uses alternate methods of amortization, as allowed by the authoritative guidance, which amortizes the actuarial gains and losses on a consistent basis for the years presented. For the U.S. Plans, gains and losses are amortized over the average future working lifetime. For most Non-U.S. Plans and the U.S. Post-Retirement Benefit Plan, gains and losses are amortized using a separate layer for each year's gains and losses. In March 2021, we substantially transferred all the assets and obligations of our Netherlands defined benefit plan to an insurance company. The partial settlement resulted in a loss of $16 million, which is included in "other income (expense), net" in the consolidated statement of operations during the year ended October 31, 2021. We received a net refund of $3 million due to the partial settlement of the Netherlands defined benefit plan. During the year ended October 31, 2020, the lump sum payments in our U.K. defined benefit plan were more than the sum of the service cost and interest cost components of net periodic benefit cost (“the threshold amount”), resulting in recognition of a settlement loss of $5 million. We also recognized a curtailment gain of $1 million in our Netherlands defined benefit plan for the year 2020. These are included in other income (expense) in the consolidated statement of operations. For the years ended October 31, 2021, 2020 and 2019, components of net periodic benefit cost (benefit) and other amounts recognized in other comprehensive income were comprised of: Defined Benefit Plans U.S. Post-Retirement Benefit Plan U.S. Plans Non-U.S. Plans 2021 2020 2019 2021 2020 2019 2021 2020 2019 (in millions) Net periodic benefit cost (benefit) Service cost — benefits earned during the period $ 24 $ 23 $ 20 $ 15 $ 15 $ 14 $ 1 $ 1 $ 1 Interest cost on benefit obligation 22 24 28 15 16 23 4 6 8 Expected return on plan assets (52) (44) (41) (77) (84) (77) (12) (13) (13) Amortization: Net actuarial loss 24 18 10 41 34 27 11 10 9 Prior service credit — — (4) — — (1) (1) (11) (14) Net periodic benefit cost (benefit) 18 21 13 (6) (19) (14) 3 (7) (9) Curtailments and settlements — — — 16 4 2 — — — Total periodic benefit cost (benefit) $ 18 $ 21 $ 13 $ 10 $ (15) $ (12) $ 3 $ (7) $ (9) Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss Net actuarial loss (gain) $ (100) $ 64 $ 77 $ 26 $ 81 $ 78 $ (38) $ 9 $ 11 Amortization: Net actuarial loss (24) (18) (10) (41) (34) (27) (11) (10) (9) Prior service credit — — 4 — — 1 1 11 14 Curtailments and settlements — — — (16) (4) (2) — — — Foreign currency — — — 1 1 (1) — — — Total recognized in other comprehensive (income) loss $ (124) $ 46 $ 71 $ (30) $ 44 $ 49 $ (48) $ 10 $ 16 Total recognized in the periodic benefit cost (benefit) and other comprehensive (income) loss $ (106) $ 67 $ 84 $ (20) $ 29 $ 37 $ (45) $ 3 $ 7 We record the service cost component of net periodic benefit cost (benefit) in the same line item as other employee compensation costs. We record the non-service components of net periodic benefit cost (benefit), such as interest cost, expected return on assets, amortization of prior service cost, and actuarial gains or losses, within other income (expense) in the consolidated statement of operations. Funded status. As of October 31, 2021 and 2020, the funded status of the defined benefit and post-retirement benefit plans was as follows: U.S. Defined Non-U.S. Defined U.S. 2021 2020 2021 2020 2021 2020 (in millions) Change in fair value of plan assets: Fair value — beginning of year $ 722 $ 615 $ 1,545 $ 1,538 $ 175 $ 176 Actual return on plan assets 189 41 134 21 45 12 Employer contributions — 100 8 10 — — Settlements — — (41) (14) — — Benefits paid (49) (34) (50) (36) (13) (13) Other — — (15) — — — Currency impact — — 27 26 — — Fair value — end of year $ 862 $ 722 $ 1,608 $ 1,545 $ 207 $ 175 Change in benefit obligation: Benefit obligation — beginning of year $ 848 $ 774 $ 1,421 $ 1,393 $ 203 $ 202 Service cost 24 23 15 15 1 1 Interest cost 22 24 15 16 4 6 Settlements — — (41) (14) — Curtailments — — — (1) — — Actuarial loss (gain) 37 62 90 18 (5) 7 Benefits paid (50) (35) (50) (36) (13) (13) Other — — (18) — — — Currency impact — — 33 30 — — Benefit obligation — end of year $ 881 $ 848 $ 1,465 $ 1,421 $ 190 $ 203 Overfunded (Underfunded) status of PBO $ (19) $ (126) $ 143 $ 124 $ 17 $ (28) Amounts recognized in the consolidated balance sheet consist of: Other assets $ — $ — $ 264 $ 311 $ 17 $ — Employee compensation and benefits (1) (1) — — — — Retirement and post-retirement benefits (18) (125) (121) (187) — (28) Net asset (liability) $ (19) $ (126) $ 143 $ 124 $ 17 $ (28) Amounts recognized in accumulated other comprehensive income (loss): Actuarial losses $ 101 $ 225 $ 457 $ 487 $ (21) $ 28 Prior service credits — — 1 1 (1) (2) Total $ 101 $ 225 $ 458 $ 488 $ (22) $ 26 The change in the benefit obligations for the U.S. defined benefit plans was primarily driven by the changes in actuarial assumptions, including the lump sum conversion rate and demographic experience. The changes in the non-U.S. plans were primarily driven by an insurance buy-in contract we executed for a portion of benefit obligations under the U.K. defined benefit plan and partial settlement of benefit obligations under the Netherlands DB plan. The change in the benefit obligations for the U.S. post-retirement benefit plan was primarily driven by changes in the discount rate. Investment policies and strategies as of October 31, 2021 . In the U.S., our RP and U.S. Post-Retirement Benefit Plan target asset allocations are approximately 70 percent to equities and approximately 30 percent to fixed income investments. Our DPSP target asset allocation is approximately 60 percent to equities and approximately 40 percent to fixed income investments. The general investment objective for all our plan assets is to obtain the optimum rate of investment return on the total investment portfolio consistent with the assumed level of risk. Specific investment objectives for the plans' portfolios are to: maintain and enhance the purchasing power of the plans' assets; achieve investment returns consistent with the level of risk being taken; and earn performance rates of return in accordance with the benchmarks adopted for each asset class. Outside of the U.S., our target asset allocation is from 5 to 60 percent to equities, from 40 to 64 percent to fixed income investments, and from zero to 50 percent to insurance contracts and cash. All plans' assets are broadly diversified. Due to fluctuations in capital markets, our actual allocations of plan assets as of October 31, 2021, differ from the target allocation. Our policy is to periodically bring the actual allocation in line with the target allocation. Equity securities include exchange-traded common stock and preferred stock of companies from broadly diversified industries. Fixed income securities include a portfolio of corporate bonds of companies from diversified industries, government securities, mortgage-backed securities, asset-backed securities, derivative instruments and other. Portions of the cash and cash equivalent, equity, and fixed income investments are held in commingled funds. Investments in commingled funds are valued using the net asset value (“NAV”) method as a practical expedient. Investments valued using the NAV method are allocated across a broad array of funds and diversify the portfolio. The value of the plan assets directly affects the funded status of our pension and post-retirement benefit plans recorded in the financial statements. In March 2021, we entered into an insurance buy-in contract for a portion of benefit obligations under the U.K. defined benefit plan and classified it as “Other Investment.” The insurance buy-in contract is similar to an annuity contract, which matches cash flows with future benefit payments for a specific group of pensioners with the obligation remaining with the plan. This contract is issued by a third-party insurance company with no affiliation to us. The insurance contract is valued on an insurer pricing basis, which reflects the purchase price adjusted for changes in discount rates and other actuarial assumptions, which approximates fair value. Fair Value . The measurement of the fair value of pension and post-retirement plan assets uses the valuation methodologies and the inputs as described in Note 8, "Fair Value Measurements." Cash and Cash Equivalents - Cash and cash equivalents consist of short-term investment funds that are invested in short-term domestic fixed income securities and other securities with debt-like characteristics, emphasizing short-term maturities and quality. Cash and cash equivalents are generally classified as Level 2 investments except when the cash and cash equivalents are held in commingled funds, which have a daily NAV derived from quoted prices for the underlying securities in active markets; these are classified as assets measured at NAV. Equity - Some equity securities consisting of common and preferred stock are held in commingled funds, which have daily NAVs derived from quoted prices for the underlying securities in active markets; these are classified as assets measured at NAV. Commingled funds that have quoted prices in active markets are classified as Level 1 investments. Fixed Income - Some of the fixed income securities are held in commingled funds that have daily NAVs derived from the underlying securities; these are classified as assets measured at NAV. Commingled funds that have quoted prices in active markets are classified as Level 1 investments. Other Investment - Other investment includes a U.K. insurance buy-in contract executed during the year and classified as a Level 3 investment. Insurance contracts are generally classified as Level 3 investments. The following tables present the fair value of U.S. Defined Benefit Plans assets classified under the appropriate level of the fair value hierarchy as of October 31, 2021 and 2020: Fair Value Measurement October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Cash and cash equivalents $ 18 $ — $ 18 $ — $ — Equity 605 187 1 — 417 Fixed income 239 27 103 — 109 Total assets measured at fair value $ 862 $ 214 $ 122 $ — $ 526 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. Fair Value Measurement October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Cash and cash equivalents $ 110 $ — $ 110 $ — $ — Equity 443 124 1 — 318 Fixed income 169 9 100 — 60 Total assets measured at fair value $ 722 $ 133 $ 211 $ — $ 378 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. For U.S. Defined Benefit Plans, there was no activity relating to assets measured at fair value using significant unobservable inputs (Level 3) during 2021 and 2020. The following tables present the fair value of U.S. Post-Retirement Benefit Plan assets classified under the appropriate level of the fair value hierarchy as of October 31, 2021 and 2020: Fair Value Measurement as of October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Cash and cash equivalents $ 5 $ — $ 5 $ — $ — Equity 144 45 — — 99 Fixed income 58 6 25 — 27 Total assets measured at fair value $ 207 $ 51 $ 30 $ — $ 126 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. Fair Value Measurement as of October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Cash and cash equivalents $ 4 $ — $ 4 $ — $ — Equity 123 34 — — 89 Fixed income 48 3 28 — 17 Total assets measured at fair value $ 175 $ 37 $ 32 $ — $ 106 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. For the U.S. Post-Retirement Benefit Plan, there was no activity relating to assets measured at fair value using significant unobservable inputs (Level 3) during 2021 and 2020. The following tables present the fair value of Non-U.S. Defined Benefit Plans assets classified under the appropriate level of the fair value hierarchy as of October 31, 2021 and 2020: Fair Value Measurement as of October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Equity $ 526 $ 189 $ 2 $ — $ 335 Fixed income 718 — 235 — 483 Other investment 364 — — 364 — Total assets measured at fair value $ 1,608 $ 189 $ 237 $ 364 $ 818 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. Fair Value Measurement as of October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Equity $ 452 $ 150 $ — $ — $ 302 Fixed income 1,093 — 221 — 872 Total assets measured at fair value $ 1,545 $ 150 $ 221 $ — $ 1,174 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. For Non-U.S. Defined Benefit Plans assets measured at fair value using significant unobservable inputs (Level 3), the following table summarizes the change in balances during 2021 and 2020: Year Ended October 31, 2021 2020 (in millions) Balance, beginning of year $ — $ — Unrealized gains/(losses) 17 — Purchases, sales, issuances, and settlements (7) — Transfers in (out) 354 — Balance, end of year $ 364 $ — .The table below presents the combined projected benefit obligation ("PBO"), accumulated benefit obligation ("ABO") and fair value of plan assets, grouping plans using comparisons of the PBO and ABO relative to the plan assets as of October 31, 2021 and 2020: 2021 2020 Benefit Fair Value of Plan Assets Benefit Fair Value of Plan Assets PBO PBO (in millions) (in millions) U.S. defined benefit plans where PBO exceeds the fair value of plan assets $ 881 $ 862 $ 848 $ 722 U.S. defined benefit plans where fair value of plan assets exceeds PBO — — — — Total $ 881 $ 862 $ 848 $ 722 Non-U.S. defined benefit plans where PBO exceeds the fair value of plan assets $ 383 $ 262 $ 433 $ 246 Non-U.S. defined benefit plans where fair value of plan assets exceeds PBO 1,082 1,346 988 1,299 Total $ 1,465 $ 1,608 $ 1,421 $ 1,545 ABO ABO U.S. defined benefit plans where ABO exceeds the fair value of plan assets $ 5 $ — $ 784 $ 722 U.S. defined benefit plans where the fair value of plan assets exceeds ABO 791 862 — — Total $ 796 $ 862 $ 784 $ 722 Non-U.S. defined benefit plans where ABO exceeds the fair value of plan assets $ 372 $ 262 $ 421 $ 246 Non-U.S. defined benefit plans where fair value of plan assets exceeds ABO 1,079 1,346 984 1,299 Total $ 1,451 $ 1,608 $ 1,405 $ 1,545 Contributions and estimated future benefit payments . For 2022, we do not expect to contribute to our U.S. Defined Benefit Plan or U.S. Post-Retirement Benefit Plan, and we expect to contribute $12 million to our Non-U.S. Defined Benefit Plans. The following table presents expected future benefit payments for the next 10 years. U.S. Defined Non-U.S. Defined U.S. Post-Retirement (in millions) 2022 $ 49 $ 39 $ 14 2023 $ 53 $ 42 $ 15 2024 $ 53 $ 44 $ 15 2025 $ 63 $ 44 $ 16 2026 $ 64 $ 45 $ 16 2027 - 2031 $ 310 $ 244 $ 74 Assumptions . The assumptions used to determine the benefit obligations and net periodic benefit cost for our defined benefit and post-retirement benefit plans are presented in the tables below. The expected long-term return on assets below represents an estimate of long-term returns on investment portfolios, consisting of a mixture of equities, fixed income and other investments, in proportion to the asset allocations of each of our plans. We consider long-term rates of return, which are weighted based on the asset classes (both historical and forecasted) in which we expect our pension and post-retirement funds to be invested. Discount rates reflect the current rate at which pension and post-retirement obligations could be settled based on the measurement dates of the plans, which is October 31. The U.S. discount rates as of October 31, 2021 and 2020 were determined based on the results of matching expected plan benefit payments with cash flows from a hypothetically constructed bond portfolio. The Non-U.S. discount rates as of October 31, 2021 and 2020 were determined based on a granular approach, which discounts the expected plan benefit payments with rates from a high quality corporate bond yield curve. In addition, we used this method to calculate two components of the periodic benefit cost: service cost and interest cost. The range of assumptions that were used for the Non-U.S. Defined Benefit Plans reflects the different economic environments within various countries. Assumptions used to calculate the net periodic benefit cost (benefit) were as follows: Year ended October 31, 2021 2020 U.S. Defined Benefit Plans: Discount rate 2.75% 3.25% Average increase in compensation levels 3.00% 3.00% Expected long-term return on assets 7.50% 7.50% Non-U.S. Defined Benefit Plans: Discount rate 0.81-1.66% 0.79-1.89% Average increase in compensation levels 2.50-2.75% 2.50-3.00% Expected long-term return on assets 4.00-6.50% 3.50-6.50% U.S. Post-Retirement Benefits Plan: Discount rate 2.25% 3.00% Expected long-term return on assets 7.50% 7.50% Current medical cost trend rate 6.25% 6.25% Ultimate medical cost trend rate 4.50% 4.50% Medical cost trend rate decreases to ultimate rate in year 2028 2027 Assumptions used to calculate the benefit obligation as of October 31, 2021 and 2020 were as follows: Year ended October 31, 2021 2020 U.S. Defined Benefit Plans: Discount rate 2.75% 2.75% Average increase in compensation levels 3.50% 3.00% Non-U.S. Defined Benefit Plans: Discount rate 0.70-1.86% 0.81-1.66% Average increase in compensation levels 2.50-2.75% 2.50-2.75% U.S. Post-Retirement Benefits Plan: Discount rate 2.75% 2.25% Current medical cost trend rate 6.00% 6.25% Ultimate medical cost trend rate 4.50% 4.50% Medical cost trend rate decreases to ultimate rate in year 2028 2028 Health care trend rates did not have a significant effect on the total service and interest cost components or on the post-retirement benefit obligation amounts reported for the U.S. Post-Retirement Benefit Plan for the years ended October 31, 2021 and 2020.

Supplemental financial informat

Supplemental financial information (Notes)	12 Months Ended
Supplemental financial information (Notes)	Oct. 31, 2021
Disclosure Text Block [Abstract]
Additional Financial Information Disclosure	13. SUPPLEMENTAL FINANCIAL INFORMATION The following tables provide details of selected balance sheet items: Cash, cash equivalents, and restricted cash October 31, 2021 2020 (in millions) Cash and cash equivalents $ 2,052 $ 1,756 Restricted cash included in other current assets — 9 Restricted cash included in other assets 16 2 Total cash, cash equivalents, and restricted cash shown in the statement of cash flows $ 2,068 $ 1,767 Restricted cash primarily relates to deficit reduction contributions to an escrow account for one of our non-U.S. defined benefit pension plans and deposits held as collateral against bank guarantees. Inventory October 31, 2021 2020 (in millions) Finished goods $ 329 $ 342 Purchased parts and fabricated assemblies 448 415 Total inventory $ 777 $ 757 Gross inventory-related excess and obsolescence charges recorded in total cost of products were $27 million in 2021, $29 million in 2020 and $27 million in 2019. We record excess and obsolete inventory charges for inventory at our sites and at our contract manufacturers and suppliers, where we have non-cancellable purchase commitments. Property, plant and equipment October 31, 2021 2020 (in millions) Land $ 61 $ 67 Buildings and leasehold improvements 785 743 Machinery and equipment 1,328 1,224 Total property, plant and equipment 2,174 2,034 Accumulated depreciation of property, plant and equipment (1,524) (1,439) Property, plant and equipment, net $ 650 $ 595 The increase in property, plant and equipment, net, for the year ended October 31, 2021, is primarily driven by capital investments to increase the resiliency of our supply chains. Asset impairments were zero in 2021, 2020 and 2019. Depreciation expense was $117 million in 2021, $104 million in 2020 and $96 million in 2019. Standard warranty Activity related to the standard warranty accrual, which is included in other accrued and other long-term liabilities in our consolidated balance sheet, is as follows: Year Ended October 31, 2021 2020 (in millions) Beginning balance $ 33 $ 38 Accruals for warranties 29 24 Settlements made during the period (28) (29) Ending balance $ 34 $ 33 Accruals for warranties due within one year $ 21 $ 20 Accruals for warranties due after one year 13 13 Ending balance $ 34 $ 33

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
COMMITMENTS AND CONTINGENCIES	Oct. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	14. COMMITMENTS AND CONTINGENCIES Commitments to contract manufacturers and suppliers. We purchase components from a variety of suppliers and use several contract manufacturers to provide manufacturing services for our products. During the normal course of business, we issue purchase orders with estimates of our requirements several months ahead of the delivery dates. The reported open purchase orders represent a commitment to our suppliers. Our agreements with suppliers for common materials provide us the option to cancel, reschedule, and adjust our requirements based on business needs. We expect to fulfill most of our purchase commitments for inventory within one year or based on mutually agreed terms. As of October 31, 2021 and 2020, our non-cancellable purchase commitments were approximately $444 million and $291 million, respectively, of which the majority is for less than one year. The increase in the non-cancellable purchase commitments for the year ended October 31, 2021 was driven by higher revenue and advance purchase orders to secure capacity for critical parts due to global supply disruptions. Other purchase commitments. Other purchase commitments relate to contracts with professional services suppliers. We can typically cancel these contracts within 90 days without penalties. For those contracts that are not cancellable within 90 days without penalties, we disclose the amounts we are obligated to pay to a supplier under each contract in that period before such contract can be canceled. As of October 31, 2021, our contractual obligations with these suppliers were approximately $60 million within the next fiscal year, as compared to approximately $52 million as of October 31, 2020. Litigation and Contingencies. On August 3, 2021, we entered into a Consent Agreement with the Directorate of Defense Trade Controls, Bureau of Political-Military Affairs, Department of State to resolve alleged violations of the Arms Export Control Act and the International Traffic in Arms Regulations ("ITAR"). Pursuant the Consent Agreement, we will pay a penalty of $6.6 million, $2.5 million of which is suspended, over three years and will employ a special compliance officer for three years. We are also involved in lawsuits, claims, investigations and proceedings, including but not limited to patent, commercial and environmental matters that arise in the ordinary course of business. Although there are no matters pending that we currently believe are reasonably possible of having a material impact to our business, consolidated financial condition, results of operations or cash flows, the outcome of litigation is inherently uncertain and the outcome is difficult to predict. An adverse outcome in any outstanding lawsuit or proceeding could result in significant monetary damages or injunctive relief. If adverse results are above management’s expectations or are unforeseen, management may not have accrued for the liability, which could impact our results in a financial period. Indemnification Obligations Related to Transactions In connection with acquisitions, divestitures, mergers, spin-offs and other transactions, we have agreed to indemnify certain parties for damages, losses, expenses and liabilities arising in the future but that were incurred prior to or are related to such transactions. The liabilities covered by these indemnifications include but are not limited to tax, employment, benefits, intellectual property, environmental, and other liabilities. We do not believe that our indemnification obligations related to such liabilities were material as of October 31, 2021. Indemnifications to Officers and Directors Our corporate by-laws require that we indemnify our officers and directors, as well as those who act as directors and officers of other entities at our request, against expenses, judgments, fines, settlements and other amounts actually and reasonably incurred in connection with any proceedings arising out of their services to Keysight and such other entities, including service with respect to employee benefit plans. In addition, we have entered into separate indemnification agreements with each director and each board-appointed officer of Keysight that provide for indemnification under similar and additional circumstances. The indemnification obligations are more fully described in the by-laws and the indemnification agreements, which are available on our website. We purchase standard insurance to cover claims or a portion of the claims made against our directors and officers. Since a maximum obligation is not explicitly stated in our by-laws or in our indemnification agreements and will depend on the facts and circumstances that arise out of any future claims, the overall maximum amount of the obligations cannot be reasonably estimated. Historically, we have not made payments related to these obligations, and do not believe that our indemnification obligations related to such claims were material as of October 31, 2021. Other Indemnifications As is customary in our industry and as provided for in local law in the U.S. and other jurisdictions, many of our standard contracts provide remedies to our customers and others with whom we enter into contracts, such as defense, settlement, or payment of judgment for intellectual property claims related to the use of our products. From time to time, we indemnify customers, as well as our suppliers, contractors, lessors, lessees, companies that purchase our businesses or assets and others with whom we enter into contracts, against combinations of loss, expense, or liability arising from various triggering events

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	12 Months Ended
STOCKHOLDERS' EQUITY	Oct. 31, 2021
Statement of Comprehensive Income [Abstract]
STOCKHOLDERS' EQUITY	15. STOCKHOLDERS' EQUITY Stock Repurchase Program On November 18, 2020, our board of directors approved a stock repurchase program authorizing the purchase of up to $750 million of the company’s common stock. On November 18, 2021, our board of directors approved a new stock repurchase program authorizing the purchase of up to $1,200 million of the company’s common stock, replacing the previously approved November 2020 program, under which $77 million remained. Under our stock repurchase program, shares may be purchased from time to time, subject to general business and market conditions and other investment opportunities, through open market purchases, privately negotiated transactions or other means. All such shares and related costs are held as treasury stock and accounted for at trade date using the cost method. The stock repurchase program may be commenced, suspended or discontinued at any time at the company’s discretion and does not have an expiration date. In 2021 we repurchased 4,361,542 shares of common stock for $673 million. In 2020 we repurchased 4,274,366 shares of common stock for $410 million. In 2019 we repurchased 2,093,570 shares of common stock for $160 million. All such shares and related costs are held as treasury stock and accounted for at trade date using the cost method. Accumulated other comprehensive loss The following table summarizes the components of accumulated other comprehensive loss, net of tax effect: October 31, 2021 2020 (in millions) Foreign currency translation, net of tax (expense) of $(63) and $(63) $ (20) $ (10) Unrealized losses on defined benefit plans, net of tax benefit of $84 and $139 (462) (605) Unrealized gains (losses) on derivative instruments, net of tax (expense) of $(11) and $(5) 40 16 Total accumulated other comprehensive loss $ (442) $ (599) Changes in accumulated other comprehensive loss by component and related tax effects were as follows: Net defined benefit pension cost and post retirement plan costs: Foreign currency translation Actuarial losses Prior service credits Unrealized gains (losses) on derivatives Total (in millions) At October 31, 2019 $ (43) $ (536) $ 4 $ (3) $ (578) Other comprehensive income (loss) before reclassifications 33 (155) — 20 (102) Amounts reclassified out of accumulated other comprehensive gain (loss) — 68 (12) 4 60 Tax benefit (expense) — 23 3 (5) 21 Other comprehensive income (loss) 33 (64) (9) 19 (21) At October 31, 2020 (10) (600) (5) 16 (599) Other comprehensive income (loss) before reclassifications (10) 106 — 32 128 Amounts reclassified out of accumulated other comprehensive gain (loss) — 93 (1) (2) 90 Tax benefit (expense) — (55) — (6) (61) Other comprehensive income (loss) (10) 144 (1) 24 157 At October 31, 2021 $ (20) $ (456) $ (6) $ 40 $ (442) Reclassifications out of accumulated other comprehensive loss were as follows: Details about accumulated other comprehensive loss components Amounts reclassified from other comprehensive loss Affected line item in statement of operations Year Ended October 31, 2021 2020 (in millions) Unrealized gain (loss) on derivatives $ — $ (3) Cost of products 2 (1) Selling, general and administrative — 1 Benefit (provision) for income taxes 2 (3) Net defined benefit pension cost and post retirement plan costs: Net actuarial losses (93) (68) Other income (expense), net Prior service credits 1 12 Other income (expense), net (92) (56) 24 10 Provision (benefit) for income taxes (68) (46) Total reclassifications for the period $ (66) $ (49) An amount in parentheses indicates a reduction to income and an increase to the accumulated other comprehensive loss. Reclassifications of prior service credits and net actuarial losses in respect of retirement plans and post retirement pension plans are included in the computation of net periodic cost. See Note 12, "Retirement Plans and Post Retirement Pension Plans."

SEGMENT INFORMATION

SEGMENT INFORMATION	12 Months Ended
SEGMENT INFORMATION	Oct. 31, 2021
Segment Reporting [Abstract]
SEGMENT INFORMATION	16. SEGMENT INFORMATION Our operating segments were determined based primarily on how the chief operating decision maker views and evaluates our operations. Segment operating results are regularly reviewed by the chief operating decision maker to make decisions about resources to be allocated to each segment and to assess performance. Other factors, including market separation and customer specific applications, go-to-market channels, products and services and manufacturing are considered in determining the formation of these operating segments. Descriptions of our two reportable segments are as follows: The Communications Solutions Group serves customers spanning the worldwide commercial communications and aerospace, defense and government end markets. The group's solutions consist of electronic design and test software, electronic measurement instruments, systems and related services. These solutions are used in the simulation, design, validation, manufacturing, installation and optimization of electronic equipment and networks. The Electronic Industrial Solutions Group provides test and measurement solutions and related services across a broad set of electronic industrial end markets, focusing on high-value applications in the automotive and energy industries and measurement solutions for consumer electronics, education, general electronics design and manufacturing, and semiconductor design and manufacturing. The group provides electronic measurement instruments, design and test software and systems and related services used in the simulation, design, validation, manufacturing, installation and optimization of electronic equipment, and automated test software that uses artificial intelligence and machine learning to automate test creation and test execution. A significant portion of the segments' expenses arise from allocated corporate charges as well as expenses related to our centralized sales force, and service, marketing and technology functions that we have historically provided to the segments in order to realize economies of scale and to efficiently use resources. Corporate charges include legal, accounting, real estate, insurance services, information technology services, treasury and other corporate infrastructure expenses. Segment allocations are 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. Newly acquired businesses are not allocated these charges until integrated into our shared services and infrastructure. The following tables reflect the results of our reportable segments under our management reporting system. These results are not necessarily in conformity with GAAP. The performance of each segment is measured based on several metrics, including income from operations. These results are used, in part, by the chief operating decision maker in evaluating the performance of, and in allocating resources to, each of the segments. The profitability of each of the segments is measured after excluding share-based compensation expense, amortization of acquisition-related balances, acquisition and integration costs, a gain on an insurance settlement related to northern California wildfires, restructuring costs, interest income, interest expense and other items as noted in the reconciliations below. CSG EISG Total (in millions) Year ended October 31, 2021: Total and segment revenue $ 3,523 $ 1,418 $ 4,941 Segment income from operations $ 932 $ 444 $ 1,376 Depreciation expense $ 91 $ 26 $ 117 Year ended October 31, 2020: Total and segment revenue $ 3,132 $ 1,089 $ 4,221 Segment income from operations $ 773 $ 296 $ 1,069 Depreciation expense $ 81 $ 23 $ 104 Year ended October 31, 2019: Total revenue $ 3,168 $ 1,135 $ 4,303 Amortization of acquisition-related balances 9 — 9 Total segment revenue $ 3,177 $ 1,135 $ 4,312 Segment income from operations $ 743 $ 294 $ 1,037 Depreciation expense $ 74 $ 22 $ 96 The following table reconciles reportable segments' income from operations to our total enterprise income before taxes: Year Ended October 31, 2021 2020 2019 (in millions) Total reportable segments' income from operations $ 1,376 $ 1,069 $ 1,037 Share-based compensation (104) (93) (82) Amortization of acquisition-related balances (174) (224) (224) Acquisition and integration costs (9) (13) (9) Gain on insurance settlement — 32 — Restructuring and other (9) (6) (11) Income from operations, as reported 1,080 765 711 Interest income 3 11 23 Interest expense (79) (78) (80) Other income (expense), net 6 63 61 Income before taxes, as reported $ 1,010 $ 761 $ 715 Major customers. No customer represented 10 percent or more of our total revenue in 2021, 2020 or 2019. The following table presents segment assets and capital expenditures directly managed by each segment. Year Ended October 31, 2021 2020 CSG EISG Total CSG EISG Total (in millions) Segment assets $ 4,122 $ 1,523 $ 5,645 $ 3,832 $ 1,334 $ 5,166 Capital expenditures $ 130 $ 44 $ 174 $ 90 $ 27 $ 117 The following table reconciles segment assets to our total assets: October 31, 2021 2020 (in millions) Total reportable segments' assets $ 5,645 $ 5,166 Cash and cash equivalents 2,052 1,756 Long-term investments 70 61 Long-term deferred tax assets 711 740 Accumulated amortization of other intangibles (1,146) (972) Pension and other assets 449 467 Total assets $ 7,781 $ 7,218 The following tables present summarized information for revenue and long-lived assets by geographic region. Revenues from external customers are generally attributed to countries based upon the customer's location. Long-lived assets consist of property, plant, and equipment, operating lease right-of-use assets and other long-term assets excluding intangible assets. United China Rest of the Total (in millions) Revenue: Year ended October 31, 2021 $ 1,803 $ 927 $ 2,211 $ 4,941 Year ended October 31, 2020 $ 1,523 $ 863 $ 1,835 $ 4,221 Year ended October 31, 2019 $ 1,584 $ 822 $ 1,897 $ 4,303 United Japan U.K. Rest of the Total (in millions) Long-lived assets: October 31, 2021 $ 533 $ 294 $ 116 $ 306 $ 1,249 October 31, 2020 $ 387 $ 272 $ 179 $ 332 $ 1,170

SCHEDULE II - VALUATION AND QUA

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS	Oct. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
VALUATION AND QUALIFYING ACCOUNTS	SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS Description Balance at Additions Charged to Deductions Credited to Expenses or Other Accounts** Balance at (in millions) 2021 Tax valuation allowance $ 238 $ 11 $ (18) $ 231 2020 Tax valuation allowance $ 240 $ 3 $ (5) $ 238 2019 Tax valuation allowance $ 79 $ 169 $ (8) $ 240 * Additions include current-year additions charged to expense and current-year build due to increases in net deferred tax assets, return to provision true-ups, other adjustments and Other Comprehensive Income ("OCI") impact to deferred taxes. ** Deductions include current-year releases credited to expense and current-year reductions due to decreases in net deferred tax assets, return to provision true-ups, other adjustments and OCI impact to deferred taxes.

OVERVIEW AND SUMMARY OF SIGNI_2

OVERVIEW AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Oct. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies [Text Block]	We have prepared the accompanying financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and in conformity with generally accepted accounting principles in the U.S. ("GAAP"). Our fiscal year end is October 31. Unless otherwise stated, all years and dates refer to our fiscal year.Management is responsible for the fair presentation of the accompanying consolidated financial statements, prepared in accordance with GAAP, and has full responsibility for their integrity and accuracy. In the opinion of management, the accompanying consolidated financial statements contain all normal and recurring adjustments necessary to present fairly our consolidated balance sheet and our consolidated statement of operations, statement of comprehensive income, statement of cash flows and statement of equity.
Principles of consolidation	The consolidated financial statements include the accounts of the company and our wholly- and majority-owned subsidiaries. All significant inter-company transactions have been eliminated.
Use of estimates	The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Although these estimates are based on management's knowledge of current events and actions that may impact the company in the future, actual results may be different from the estimates. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. We are not aware of any specific event or circumstance that would require an update to our estimates or judgments or a revision of the carrying value of our assets or liabilities as of October 31, 2021. Our critical accounting policies are those that affect our financial statements materially and involve difficult, subjective or complex judgments by management. Those policies are revenue recognition, inventory valuation, share-based compensation, retirement and post-retirement plan assumptions, valuation of goodwill and other intangible assets, warranty, loss contingencies, restructuring and accounting for income taxes.
Revenue recognition	Revenue recognition Revenue is recognized upon transfer of control of the promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. We primarily generate revenue from the sale of products (hardware and/or software), services, or a combination thereof. We enter into contracts that may involve multiple performance obligations, and we allocate the transaction price between each performance obligation on the basis of relative standalone selling price. Revenue is recognized net of allowances for returns and any taxes collected from customers, which are subsequently remitted to governmental authorities. Nature of Goods and Services Product revenues are generated predominantly from the sale of various types of design and test software and hardware. Products consist of standalone software and hardware generally installed with software applications that are licensed on a perpetual and term basis. Our hardware products generally do not have any substantive acceptance terms that would otherwise preclude the transfer of control. Performance obligations related to our software licenses, including the license portion of our software subscriptions, grant the customer the right to use our software via electronic delivery. Service revenues consist of repair and calibration services, extended warranties, technical support for hardware and software, when-and-if available software updates and upgrades, and professional services, including installation and implementation, consulting, and training. Services include both hardware and software services. Repair and calibration services for hardware products are sold both as per-incident customer services and as customer agreements to provide such services over the contractual period. Extended warranties are optional to the customer and provide warranty on hardware products for additional years beyond the standard one-year warranty. Technical support for software and when-and-if available software updates and upgrades are sold either together with our software licenses and software subscriptions, or separately as part of our customer support programs. These are considered stand-ready performance obligations where customers benefit from the services evenly throughout the license or service period. These performance obligations provide the customer access evenly over the contract period. Our professional services may be sold on a time and material basis (e.g., consulting) or on a fixed-fee basis (e.g., non-recurring engineering). We also generate revenues from a combination of products and services ("custom solutions"), including combinations of hardware, software, software subscriptions, installation, professional services, and other support services. Custom solutions provide the customer with a combination of hardware, software and professional services to meet customers' unique specifications and are accounted for as one performance obligation. For our contracts with customers, we account for individual performance obligations separately if they are distinct. Our standard payment terms are net 30 to 90 days, and we generally do not offer extended payment terms beyond one year. Our contracts typically contain various forms of variable consideration, including trade discounts, trade-in credits, rebates, and rights of return. The transaction price is allocated to the separate performance obligations on a relative standalone selling price basis. Standalone selling prices ("SSPs") for a majority of our products and services are estimated based on our established pricing practices and maximize the use of observable inputs. An observable input is the price of the good or service when it is sold as a separate item in a similar circumstance and to a similar customer as in the contract for which SSPs are being determined. We have elected to exclude from the measurement of the transaction price all taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction and collected by Keysight from a customer (e.g., sales, use, value added, and some excise taxes). We have also elected to account for shipping and handling activities that occur after control of the related good transfers as fulfillment activities instead of assessing such activities as performance obligations. Our typical performance obligations include the following: Performance obligation When performance obligation is typically satisfied When payment is typically due How standalone selling price is typically determined Product Revenues Hardware When customer obtains control of the product, typically at delivery (point in time) Within 30-90 days of shipment Estimated based on established pricing practices or observable based on standalone sales for certain hardware products Software licenses Upon electronic delivery of the software, and the applicable license period has begun (point in time) Within 30-90 days of the beginning of license period Estimated based on established pricing practices or observable based on standalone sales for certain software products Threat intelligence solutions Ratably over the subscription period (over time) Within 30-90 days of the beginning of subscription period Estimated based on established pricing practices Service Revenues Calibration contracts Ratably over the service contract period (over time) Within 30-90 days of the beginning of service contract period Estimated based on established pricing practices Repair and calibration (per- incident) As services are performed (point in time) Within 30-90 days of invoicing for services rendered Estimated based on established pricing practices Extended hardware warranty Ratably over the warranty period (over time) Within 30-90 days of invoicing Estimated based on established pricing practices or observable based on standalone sales of certain hardware warranty contracts Technical support and when-and-if-available software updates Ratably over the license service contract period (over time) Within 30-90 days of the beginning of license or service contract period Estimated based on established pricing practices or observable based on standalone sales for certain support contracts Professional services As services are performed based on measures of progress (over time) or at a point in time Within 30-90 days of invoicing for services rendered Estimated based on established pricing practices Custom Solutions Custom solutions (milestone-based) As milestones are achieved based on transfer of control to customer (over time) Within 30-90 days of milestone achievement Transaction price, as pricing is custom and can vary significantly from contract to contract Custom solutions (point in time) When customer obtains control of the solution, typically at delivery or customer acceptance, as defined by the contract (point in time) Within 30-90 days of delivery of solution Transaction price, as pricing is custom and can vary significantly from contract to contract Significant Judgments Judgment is required to determine the standalone selling price for each distinct performance obligation. As most of our products and services are not sold on a standalone basis, we typically estimate the standalone selling price. In doing so, we consider our internal price list for each product and service, which reflects our desired profitability, based on an expected level of sales, and adjust for factors such as competition, customer relationship, discount provided in the contract, geographic location, and the products and services purchased in the arrangement. We use a range based on actual historical sales to determine whether the calculated standalone selling price for a product or service is a fair representation of the standalone selling price. For capitalized contract costs, we use judgment in determining the capitalized amount and amortization period. Our products are generally sold with a right of return and we may provide other credits, discounts, or incentives, which are accounted for as variable consideration at the portfolio level and estimated based on historical information. Returns, credits, and discounts are estimated at contract inception and updated at the end of each reporting period as additional information becomes available to the extent that it is probable a significant reversal of the cumulative amount of revenue recognized will not occur once the variability is subsequently resolved. Shipping and handling costs. Our shipping and handling costs charged to customers are included in revenue, and the associated expense is recorded in cost of products for all periods presented.
Accounts receivable, net	Trade accounts receivable are recorded at the invoiced amount and do not bear interest. Such accounts receivable have been reduced by an allowance for doubtful accounts, which is our best estimate of the amount of probable credit losses in our existing accounts receivable. We determine the allowance based on customer specific experience and the aging of such receivables, among other factors. The allowance for doubtful accounts was approximately $4 million and $3 million as of October 31, 2021 and 2020, respectively. We do not have any off-balance-sheet credit exposure related to our customers.
Share-based Payment Arrangement	We account for share-based awards made to our employees and directors, including restricted stock units ("RSUs"), employee stock purchases made under Keysight's employee stock purchase plan under Section 423(b) of the Internal Revenue Code ("ESPP"), employee stock option awards, and performance share awards under Keysight Technologies, Inc. Long-Term Performance ("the LTP") Program, using the estimated grant date fair value method of accounting. We recorded compensation expense for all share-based awards of $104 million in 2021, $93 million in 2020 and $82 million in 2019.
Inventory	Inventory is valued at standard cost, which approximates actual cost computed on a first-in, first-out basis, not in excess of market value. We assess the valuation of our inventory on a periodic basis and make adjustments to the value for estimated excess and obsolete inventory based on estimates about future demand and actual usage. The excess balance determined by this analysis becomes the basis for our excess inventory charge. Our excess inventory review process includes analysis of sales unit forecasts, managing product rollovers and working with manufacturing to maximize recovery of excess inventory.
Warranty	Keysight warranties on products sold through direct sales channels are primarily for one year. Warranties for products sold through distribution channels are primarily for three years. We accrue for standard warranty costs based on historical trends in warranty charges. The accrual is reviewed regularly and periodically adjusted to reflect changes in warranty cost estimates. Estimated warranty charges are recorded within cost of products at the time related product revenue is recognized. See Note 13, "Supplemental financial information".We also sell extended warranties that provide warranty coverage beyond the standard warranty term. Revenue associated with extended warranties is deferred and recognized over the extended coverage period.
Loss contingencies	We accrue for probable losses from contingencies, including legal settlement costs, on an undiscounted basis when such costs are considered probable of being incurred and are reasonably estimable. We periodically evaluate available information, both internal and external, relative to such contingencies and adjust this accrual as necessary.
Taxes on income	Income tax expense is based on income or loss before taxes. Deferred income taxes reflect the effect of temporary differences between asset and liability amounts that are recognized for financial reporting purposes and the amounts that are r ecognized for income tax purposes. These deferred taxes are measured by applying currently enacted tax laws. Valuation allowances are recognized to reduce deferred tax assets to the amount that is more likely than not to be realized.We account for uncertainty in income taxes using a two-step approach to recognize and measure uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50 percent likely of being realized upon settlement. We make adjustments to these reserves when facts and circumstances change, such as the closing of a tax audit or the refinement of an estimate due to new information. We classify the liability for unrecognized tax benefits as current to the extent that the company anticipates payment (or receipt) of cash within one year. Interest and penalties related to uncertain tax positions are recognized in the provision for income taxes. Given the number of years and numerous matters that remain subject to examination in various tax jurisdictions, we are unable to estimate the range of possible changes to the balance of our unrecognized tax benefits.
Goodwill and other intangible assets	Goodwill is assessed for impairment on a reporting unit basis at least annually in the fourth quarter, as of September 30, or more frequently when events and circumstances occur indicating that the recorded goodwill may be impaired. The impairment test compares the fair value of a reporting unit with its carrying amount, with an impairment charge recorded for the amount by which the carrying amount exceeds the reporting unit’s fair value up to a maximum amount of the goodwill balance for the reporting unit. We determine fair values for each of the reporting units using the market approach, when available and appropriate, or the income approach, or a combination of both. If multiple valuation methodologies are used, the results are weighted appropriately. Valuations using the market approach are derived from metrics of publicly traded comparable companies. The selections of comparable businesses are based on the markets in which our reporting units operate, giving consideration to risk profiles, size, geography and diversity of products and services. Under the income approach, fair value is determined based on the present value of estimated future cash flows, discounted at an appropriate risk-adjusted rate. We use our internal forecasts to estimate future cash flows and include an estimate of long-term future growth rates based on our most recent views of the long-term outlook for each business. As defined in the authoritative guidance, a reporting unit is an operating segment or one level below an operating segment. During the fourth quarter of 2021, we performed our annual impairment test for all our reporting units. Based on the results of our testing, the fair value of each of our reporting units exceeded the carrying value. There were no impairments of goodwill during the years ended October 31, 2021, 2020 and 2019. See Note 2, “Acquisitions,” and Note 7, “Goodwill and Other Intangible Assets,” for additional information about our goodwill and other intangible assets. Other intangible assets consist primarily of developed technologies, proprietary know-how, trademarks, customer relationships, non-compete agreements, and acquired backlog and are amortized using the straight-line method over estimated useful lives ranging from 6 months to 12 years. We review other intangible assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. No impairments of purchased intangible assets were recorded during the years ended October 31, 2021, 2020 and 2019. The authoritative accounting guidance allows a qualitative approach for testing indefinite-lived intangible assets for impairment, similar to the impairment testing guidance for goodwill. It allows the option to first assess qualitative factors (events and circumstances) that could have affected the significant inputs used in determining the fair value of the indefinite-lived intangible asset. The qualitative factors assist in determining whether it is more-likely-than-not that the indefinite-lived intangible asset is impaired. An organization may choose to bypass the qualitative assessment for any indefinite-lived intangible asset in any period and proceed directly to calculating its fair value. Our indefinite-lived intangible assets are in-process research and development ("IPR&D") intangible assets. In 2021, 2020 and 2019 we assessed impairment by performing a qualitative test and concluded that no material impairment of indefinite-lived intangible assets was required.
Advertising	Advertising costs are expensed as incurred and were $21 million in 2021, $24 million in 2020 and $22 million in 2019.
Research and development	Costs related to the research, design and development of our products are charged to research and development expense as they are incurred.
Investments	Investments with readily determinable fair values and trading securities are reported at fair value. Equity investments without readily determinable fair values are measured at cost with adjustments for observable changes in price or impairments. Gains or losses resulting from changes in fair value are recognized currently in earnings. The company assesses investments for impairment whenever events or changes in circumstances indicate that the carrying value of an investment may not be recoverable. There was no impairment recognized in 2021, 2020 and 2019.
Net income per share	Basic net income per share is computed by dividing net income by the weighted average number of common shares outstanding during the period excluding the dilutive effect of stock options and other employee stock plans. Diluted net income per share gives effect to all potentially dilutive common stock equivalents outstanding during the period. The dilutive effect of share-based awards is reflected in diluted net income per share by application of the treasury stock method, which includes consideration of unamortized share-based compensation expense, and the dilutive effect of in-the-money options and non-vested RSUs. Under the treasury stock method, the amount the employee must pay for exercising stock options and unamortized share-based compensation expense are assumed proceeds to be used to repurchase hypothetical shares.
Cash, cash equivalents and short term investments	We classify investments as cash equivalents if their original maturity or remaining maturity at the time of purchase is three months or less at the date of purchase. Cash equivalents are stated at cost, which approximates fair value. As of October 31, 2021, approximately $1.6 billion of our cash, cash equivalents and restricted cash was held outside of the U.S. in our foreign subsidiaries. Our cash and cash equivalents mainly consist of investments in institutional money market funds, short-term deposits held at major global financial institutions, and similar short duration instruments with original maturities of 90 days or less. We continuously monitor the creditworthiness of the financial institutions in which we invest our funds. We utilize a variety of funding strategies in an effort to ensure that our worldwide cash is available in the locations in which it is needed. Most significant international locations have access to internal funding through an offshore cash pool for working capital needs. In addition, a few locations that are unable to access internal funding have access to temporary local overdraft and short-term working capital lines of credit. We classify investments as short-term investments if their original maturities are greater than three months and their remaining maturities are one year or less.
Fair value of financial instruments	The carrying values of certain of our financial instruments, including cash and cash equivalents, accounts receivable, accounts payable and other accrued liabilities, approximate fair value because of their short maturities. The fair value of long-term equity investments is determined using quoted market prices for those securities when available. For those long-term equity investments accounted for under the equity method or measurement alternative, the carrying value approximates estimated fair value. The fair value of our long-term debt, calculated from quoted prices that are primarily Level 1 inputs under the accounting guidance fair value hierarchy, exceeded the carrying value less debt issuance costs by approximately $178 million and $236 million as of October 31, 2021 and 2020, respectively. The fair value of foreign currency contracts used for hedging purposes is estimated internally by using inputs tied to active markets. These inputs, for example, interest rate yield curves, foreign exchange rates, and forward and spot prices for currencies, are observable in the market or can be corroborated by observable market data for substantially the full term of the assets or liabilities. See also Note 8, "Fair Value Measurements," for additional information on the fair value of financial instruments.
Concentration of credit risk	Financial instruments that potentially subject us to significant concentration of credit risk include money market fund investments, time deposits and demand deposit balances. These investments are categorized as cash and cash equivalents and long-term investments. In addition, we have credit risk from derivative financial instruments used in hedging activities and accounts receivable. We invest in a variety of financial instruments and limit the amount of credit exposure with any one financial institution. We have a comprehensive credit policy in place and credit exposure is monitored on an ongoing basis. Credit risk with respect to our accounts receivable is diversified due to the large number of entities comprising our customer base and their dispersion across many different industries and geographies. Credit evaluations are performed on customers requiring credit over a certain amount. Credit risk is mitigated through collateral, such as letters of credit, bank guarantees or payment terms like cash in advance. No single customer accounted for more than 10 percent of accounts receivable as of October 31, 2021 or 2020.
Derivative instruments	We are exposed to global foreign currency exchange rate risk in the normal course of business. We enter into foreign exchange hedging contracts, primarily forward contracts to manage financial exposures resulting from changes in foreign currency exchange rates. Foreign currency exposures include committed and anticipated revenue and expense transactions (cash flow exposure) and assets and liabilities that are denominated in currencies other than the functional currency of the subsidiary (balance sheet exposure). For cash flow hedges, contracts are designed at inception as hedges of the related foreign currency exposures. We formally document all relationships between hedging instruments and hedged items, as well as our risk-management objective and strategy for undertaking various hedge transactions at the inception of the hedge. This process includes linking all derivatives that are designated as cash flow hedges to specific forecasted transactions. We also formally assess, both at the hedge’s inception and on an ongoing basis, whether the hedging instruments are highly effective in offsetting changes in cash flows of hedged items. Our foreign exchange hedging contracts have maturities based on a rolling period of up to twelve months. We do not use derivative financial instruments for speculative trading purposes.All derivatives are recognized on the balance sheet at their fair values. For derivative instruments that are designated and qualify as a cash flow hedge, changes in the value of the effective portion of the derivative instrument is recognized in accumulated comprehensive income, a component of stockholders' equity. Amounts associated with cash flow hedges are reclassified and recognized in income when either the forecast transaction occurs or it becomes probable the forecast transaction will not occur. Derivatives not designated as hedging instruments are recorded on the balance sheet at fair value, and changes in fair value are recorded in earnings in the current period. Derivative instruments are subject to master netting arrangements and qualify for net presentation in the balance sheet. Cash flows from derivative instruments are classified in the statement of cash flows in the same category as the cash flows from the hedged or economically hedged item, primarily in operating activities.
Property, plant and equipment	Property, plant and equipment are stated at cost less accumulated depreciation. Additions, improvements and major renewals are capitalized; maintenance, repairs and minor renewals are expensed as incurred. When assets are retired or disposed of, the assets and related accumulated depreciation are removed from our general ledger, and the resulting gain or loss is reflected in the consolidated statement of operations. Buildings and improvements are depreciated over the lesser of their useful lives or the remaining term of the lease and machinery and equipment, which is generally over three years to ten years. We use the straight-line method to depreciate assets.
Leases	Leases. We adopted Accounting Standards Codification (“ASC”) Topic 842, Leases (“ASC 842”), on November 1, 2019 using the modified retrospective transition approach provided by Accounting Standards Update ("ASU") 2018-11, Leases: Targeted Improvements , with the cumulative effect of initially applying the standard recognized at the date of adoption. We determine whether an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities (current and non-current) on our consolidated balance sheet. Finance leases are included in property, plant and equipment, other accrued liabilities, and other long-term liabilities in our consolidated balance sheet. Our finance lease and lessor arrangements are immaterial. ROU assets and lease obligations are recognized based on their present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the lease term and economic environment to discount lease obligations. ROU assets also include any lease payments made and exclude lease incentives and initial direct costs incurred. We initially measure payments based on an index by using the applicable rate at lease commencement. Variable payments that do not depend on an index are not included in the lease liability and are recognized as they are incurred. See Note 10, "Leases," for additional information.
Impairment of long-lived assets	We continually monitor events and changes in circumstances that could indicate carrying amounts of long-lived assets may not be recoverable. When such events or changes in circumstances occur, we assess the recoverability of long-lived assets by determining whether the carrying value of such assets will be recovered through undiscounted expected future cash flows. If the total of the undiscounted future cash flows is less than the carrying amount of those assets, we recognize an impairment loss based on the excess of the carrying amount over the fair value of the assets.
Restructuring costs	The main component of our existing restructuring plans is related to workforce reductions and site restructuring. Workforce reduction charges are accrued when payment of benefits becomes probable and the amounts can be estimated. If the amounts and timing of cash flows from restructuring activities are significantly different from what we have estimated, the actual amount of restructuring and other related charges could be materially different, either higher or lower, than those we have recorded.
Employee compensation and benefits	Amounts owed to employees, such as accrued salary, bonuses and vacation benefits are reported within employee compensation and benefits in the consolidated balance sheet. The total amount of accrued vacation benefit was $114 million and $107 million as of October 31, 2021 and 2020, respectively.
Foreign currency translation	We translate and remeasure balance sheet and statement of operations items into U.S. dollars. For those subsidiaries that operate in a local currency functional environment, all assets and liabilities are translated into U.S. dollars using current exchange rates at the balance sheet date; revenue and expenses are translated using monthly exchange rates that approximate average exchange rates in effect during each period. Resulting translation adjustments are reported as a separate component of accumulated other comprehensive income (loss) in stockholders' equity.For those subsidiaries that operate in a U.S. dollar functional environment, foreign currency assets and liabilities are re-measured into U.S. dollars at current exchange rates except for non-monetary assets and capital accounts, which are remeasured at historical exchange rates. Revenue and expenses are generally remeasured at monthly exchange rates that approximate average exchange rates in effect during each period. Gains or losses from foreign currency re-measurement are included in net income. Net gains or losses resulting from foreign currency transactions are reported in other income (expense) and were a $3 million gain in 2021, a $3 million gain in 2020 and a $2 million gain in 2019.
Retirement plans and post-retirement benefit plan assumptions	Defined benefit plan obligations are remeasured at least annually as of October 31, based on the present value of future benefit payments to reflect future benefit costs over the employees' average expected future service to Keysight based on the terms of the plans. To estimate the present value of these future payments, we are required to make assumptions using actuarial concepts within the framework of GAAP. Two critical assumptions are the discount rate and the expected long-term return on plan assets. Other important assumptions include expected future salary increases, expected future increases to benefit payments, expected retirement dates, employee turnover, retiree mortality rates and investment portfolio composition. We evaluate these assumptions at least annually. See Note 12, "Retirement Plans and Post-Retirement Benefit Plans."

REVENUE Disaggregation of reven

REVENUE Disaggregation of revenue (Tables)	12 Months Ended
REVENUE Disaggregation of revenue (Tables)	Oct. 31, 2021
Revenue Recognition [Abstract]
Disaggregation of Revenue [Table Text Block]	Disaggregation of Revenue We disaggregate our revenue from contracts with customers by geographic region, end market, and timing of revenue recognition, as we believe these categories best depict how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. Disaggregated revenue is presented for each of our reportable segments, Communications Solutions Group ("CSG") and Electronics Industrial Solutions Group ("EISG"). Year Ended October 31, 2021 2020 2019 CSG EISG Total CSG EISG Total CSG EISG Total (in millions) Region Americas $ 1,697 $ 299 $ 1,996 $ 1,424 $ 217 $ 1,641 $ 1,474 $ 250 $ 1,724 Europe 500 295 795 421 255 676 456 257 713 Asia Pacific 1,326 824 2,150 1,287 617 1,904 1,238 628 1,866 Total revenue $ 3,523 $ 1,418 $ 4,941 $ 3,132 $ 1,089 $ 4,221 $ 3,168 $ 1,135 $ 4,303 End Market Aerospace, Defense & Government $ 1,142 $ — $ 1,142 $ 928 $ — $ 928 $ 975 $ — $ 975 Commercial Communications 2,381 — 2,381 2,204 — 2,204 2,193 — 2,193 Electronic Industrial — 1,418 1,418 — 1,089 1,089 — 1,135 1,135 Total revenue $ 3,523 $ 1,418 $ 4,941 $ 3,132 $ 1,089 $ 4,221 $ 3,168 $ 1,135 $ 4,303 Timing of Revenue Recognition Revenue recognized at a point in time $ 2,936 $ 1,233 $ 4,169 $ 2,598 $ 946 $ 3,544 $ 2,748 $ 1,037 $ 3,785 Revenue recognized over time 587 185 772 534 143 677 420 98 518 Total revenue $ 3,523 $ 1,418 $ 4,941 $ 3,132 $ 1,089 $ 4,221 $ 3,168 $ 1,135 $ 4,303
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]	Year Ended October 31, 2021 Balance at October 31, 2020 $ 566 Deferral of revenue billed in current period, net of recognition 487 Deferred revenue arising out of acquisitions 3 Revenue recognized that was deferred as of the beginning of the period (391) Foreign currency translation impact — Balance at October 31, 2021 $ 665
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]	Remaining Performance Obligations Revenue expected to be recognized in any future period related to remaining performance obligations, excluding revenue pertaining to contracts that have an original expected duration of one year or less, was approximately $382 million as of October 31, 2021, and represents the company’s obligation to deliver products and services and obtain customer acceptance on delivered products. Since we typically invoice customers at contract inception, this amount is included in our current and long-term deferred revenue balances. As of October 31, 2021, we expect to recognize approximately 51 percent of the revenue related to these unsatisfied performance obligations during 2022, 29 percent in 2023 and 20 percent thereafter.

SHARE-BASED COMPENSATION (Table

SHARE-BASED COMPENSATION (Tables)	12 Months Ended
SHARE-BASED COMPENSATION (Tables)	Oct. 31, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	The impact of share-based compensation expense on our consolidated statement of operations was as follows: Year Ended October 31, 2021 2020 2019 (in millions) Cost of products and services $ 19 $ 16 $ 14 Research and development 21 19 16 Selling, general and administrative 64 58 52 Total share-based compensation expense $ 104 $ 93 $ 82 Income tax benefit realized from exercised stock options and similar awards $ 10 $ 12 $ 9
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions And Methodology	The following assumptions were used to estimate the fair value of TSR-based performance awards. Year Ended October 31, 2021 2020 2019 Volatility of Keysight shares 36% 28% 25% Volatility of index 23% 13% 12% Price-wise correlation with selected peers 67% 61% 57%
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Roll Forward	The following table summarizes non-vested award activity in 2021 for our LTP Program and restricted stock unit awards: Shares Weighted (in thousands) Non-vested at October 31, 2020 2,634 $ 67 Granted 743 124 Vested (1,377) 54 Forfeited (47) 87 LTP Program incremental 228 52 Non-vested at October 31, 2021 2,181 $ 93

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
INCOME TAXES (Tables)	Oct. 31, 2021
Income Tax Disclosure [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign	The domestic and foreign components of income before taxes are: Year Ended October 31, 2021 2020 2019 (in millions) U.S. operations $ 89 $ 68 $ 20 Non-U.S. operations 921 693 695 Total income before taxes $ 1,010 $ 761 $ 715
Schedule of Components of Income Tax Expense (Benefit)	The provision for income taxes was comprised of: Year Ended October 31, 2021 2020 2019 (in millions) U.S. federal taxes: Current $ 71 $ 16 $ 10 Deferred (10) 1 (8) Non-U.S. taxes: Current 90 77 91 Deferred (30) 36 14 State taxes, net of federal benefit: Current 8 — (5) Deferred (13) 4 (8) Total provision for income taxes $ 116 $ 134 $ 94
Income Tax Effects On Net Deferred Tax Assets Liabilities Disclosure	: October 31, 2021 2020 (in millions) Deferred Tax Assets Inventory $ 18 $ 10 Intangibles 559 597 Property, plant and equipment 31 21 Warranty reserves 8 8 Pension benefits 34 90 Employee benefits, other than retirement 39 28 Net operating loss, capital loss, and credit carryforwards 315 286 Share-based compensation 17 16 Deferred revenue 35 32 Lease obligations 53 38 Others 7 8 Total deferred tax assets 1,116 1,134 Tax valuation allowance (231) (238) Total deferred tax assets less valuation allowance 885 896 Deferred Tax Liabilities Intangibles (41) (38) Property, plant and equipment (26) (31) Warranty reserves — (1) Pension benefits (84) (84) Employee benefits, other than retirement (1) (1) Unremitted earnings of foreign subsidiaries (21) (37) Deferred revenue (4) (3) ROU lease assets (51) (36) Others (14) (11) Total deferred tax liabilities (242) (242) Total deferred tax assets, net of deferred tax liabilities $ 643 $ 654
Summary Of Income Tax Expense Reconciliation	The differences between the U.S. federal statutory income tax rate and our effective tax rate are: Year Ended October 31, 2021 2020 2019 (in millions) Profit before tax times statutory rate $ 212 $ 160 $ 150 State income taxes, net of federal benefit (6) 4 (6) Current U.S. tax on foreign earnings 58 39 48 Deferred taxes on foreign earnings not considered indefinitely reinvested 1 8 2 U.S. benefit on foreign sales (16) (8) (13) U.S. research credits (15) (14) (12) Non-U.S. income taxed at different rates (105) (64) (70) Change in unrecognized tax benefits 17 8 (12) Share-based compensation (6) (7) (5) Officers’ compensation 6 5 4 Acquired entity integration (15) — — Release of non-US valuation allowance (17) — — Other, net 2 3 8 Provision for income taxes $ 116 $ 134 $ 94 Effective tax rate 11 % 18 % 13 %
Current and Long Term Tax Assets and Liabilities	The breakdown between current and long-term income tax assets and liabilities, excluding deferred tax assets and liabilities, was as follows for the years 2021 and 2020: October 31, 2021 2020 (in millions) Current income tax assets (included within other current assets) $ 30 $ 53 Current income tax liabilities (included within income and other taxes payable) (44) (40) Long-term income tax liabilities (included within other long-term liabilities) (219) (212) Total $ (233) $ (199)
Summary of Income Tax Contingencies	The aggregate changes in the balances of our unrecognized tax benefits including all federal, state and foreign tax jurisdictions are as follows: 2021 2020 2019 (in millions) Gross Balance, beginning of year $ 237 $ 226 $ 234 Additions due to acquisition — — 9 Additions for tax positions related to the current year 19 13 18 Additions for tax positions from prior years — 2 — Reductions for tax positions from prior years (3) (1) (32) Statute of limitations expirations (4) (3) (3) Gross Balance, end of year $ 249 $ 237 $ 226

NET INCOME PER SHARE (Tables)

NET INCOME PER SHARE (Tables)	12 Months Ended
NET INCOME PER SHARE (Tables)	Oct. 31, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The following table presents the calculation of basic and diluted net income per share (in millions, except per-share amounts): Year Ended October 31, 2021 2020 2019 (in millions) Net income $ 894 $ 627 $ 621 Basic weighted-average shares 185 187 188 Potential common shares — stock options and other employee stock plans 2 2 3 Diluted weighted-average shares 187 189 191 Net income per share - basic $ 4.84 $ 3.35 $ 3.31 Net income per share - diluted $ 4.78 $ 3.31 $ 3.25

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	12 Months Ended
GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	Oct. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The goodwill balances as of October 31, 2021, 2020 and 2019 and the movements in 2021 and 2020 for each of our reportable segments were as follows: CSG EISG Total (in millions) Goodwill at October 31, 2019 $ 942 $ 267 $ 1,209 Foreign currency translation impact 8 6 14 Goodwill arising from acquisitions 34 280 314 Goodwill at October 31, 2020 984 553 1,537 Foreign currency translation impact (15) 6 (9) Goodwill arising from acquisitions 100 — 100 Goodwill at October 31, 2021 $ 1,069 $ 559 $ 1,628
Schedule of Other Intangible Assets by Major Class	Other intangible assets as of October 31, 2021 and 2020 consisted of the following: October 31, 2021 October 31, 2020 Gross Carrying Amount Accumulated Amortization Net Book Value Gross Accumulated Net Book (in millions) Developed technology $ 969 $ 866 $ 103 $ 915 $ 749 $ 166 Backlog 17 17 — 17 14 3 Trademark/Tradename 36 28 8 35 25 10 Customer relationships 389 235 154 364 184 180 Total amortizable intangible assets 1,411 1,146 265 1,331 972 359 In-Process R&D 7 — 7 2 — 2 Total $ 1,418 $ 1,146 $ 272 $ 1,333 $ 972 $ 361
Finite-lived Intangible Assets Amortization Expense	Amortization of other intangible assets was $174 million in 2021, $220 million in 2020 and $210 million in 2019. Estimated intangible assets amortization expense for each of the five succeeding fiscal years is as follows: Amortization expense (in millions) 2022 $ 100 2023 $ 77 2024 $ 38 2025 $ 21 2026 $ 13 Thereafter $ 16

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	12 Months Ended
FAIR VALUE MEASUREMENTS (Tables)	Oct. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Assets and Liabilities Measured on Recurring Basis	Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis Financial assets and liabilities measured at fair value on a recurring basis as of October 31, 2021 and 2020 were as follows: Fair Value Measurements as of October 31, 2021 2020 Total Level 1 Level 2 Level 3 Other Total Level 1 Level 2 Level 3 Other (in millions) Assets: Short-term Cash equivalents Money market funds $ 1,296 $ 1,296 $ — $ — $ — $ 1,047 $ 1,047 $ — $ — $ — Derivative instruments (foreign exchange contracts) 6 — 6 — — 3 — 3 — — Long-term Derivative instruments (interest rate swaps) 48 — 48 — — 23 — 23 — — Equity investments 60 60 — — — 52 52 — — — Equity investments - other 10 — — — 10 9 — — — 9 Total assets measured at fair value $ 1,420 $ 1,356 $ 54 $ — $ 10 $ 1,134 $ 1,099 $ 26 $ — $ 9 Liabilities: — Short-term Derivative instruments (foreign exchange contracts) $ 4 $ — $ 4 $ — $ — $ 4 $ — $ 4 $ — $ — Long-term Deferred compensation liability 24 — 24 — — 18 — 18 — — Total liabilities measured at fair value $ 28 $ — $ 28 $ — $ — $ 22 $ — $ 22 $ — $ —
Marketable Securities [Table Text Block]	Net recognized gains on equity investments were as follows: Year Ended October 31, 2021 2020 2019 (in millions) Net realized gains on investments sold $ — $ — $ 1 Net unrealized gains on investments still held $ 4 $ 11 $ 6

DERIVATIVES (Tables)

DERIVATIVES (Tables)	12 Months Ended
DERIVATIVES (Tables)	Oct. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The aggregated notional amounts by currency and designation as of October 31, 2021 were as follows: Derivatives in Derivatives Not Designated as Hedging Instruments Forward Forward Currency Buy/(Sell) Buy/(Sell) (in millions) Euro $ 35 $ 13 British Pound 19 (87) Singapore Dollar 25 28 Malaysian Ringgit 98 10 Japanese Yen (101) (42) Other currencies 13 (44) Total $ 89 $ (122)
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The gross fair values and balance sheet presentation of derivative instruments held as of October 31, 2021 and 2020 were as follows: Fair Values of Derivative Instruments Assets Derivatives Liabilities Derivatives Fair Value Fair Value Balance Sheet Location October 31, October 31, Balance Sheet Location October 31, October 31, (in millions) Derivatives designated as hedging instruments: Cash flow hedges Foreign exchange contracts Other current assets $ 5 $ 2 Other accrued liabilities $ 1 $ 3 Interest rate swap contracts: Other assets 48 23 Derivatives not designated as hedging instruments: Foreign exchange contracts Other current assets 1 1 Other accrued liabilities 3 1 Total derivatives $ 54 $ 26 $ 4 $ 4
Derivative Instruments, Gain (Loss)	The effect of derivative instruments for foreign exchange contracts designated as hedging instruments and not designated as hedging instruments in our consolidated statement of operations was as follows: 2021 2020 2019 (in millions) Derivatives designated as hedging instruments: Cash flow hedges Interest rate swap contracts: Gain (loss) recognized in accumulated other comprehensive income (loss) $ 26 $ 23 $ — Foreign exchange contracts: Gain (loss) recognized in accumulated other comprehensive income (loss) 6 (3) (5) Gain (loss) reclassified from accumulated other comprehensive income (loss) into earnings: Cost of products — (3) (1) Selling, general and administrative 2 (1) (2) Gain (loss) excluded from effectiveness testing recognized in earnings based on changes in fair value: Cost of products — 2 3 Gain (loss) excluded from effectiveness testing recognized in earnings based on amortization approach: Cost of products 1 1 — Selling, general and administrative 1 — — Derivatives not designated as hedging instruments: Gain (loss) recognized in other income (expense), net $ (3) $ 4 $ (5)

LEASES (Tables)

LEASES (Tables)	12 Months Ended
LEASES (Tables)	Oct. 31, 2021
Leases [Abstract]
Lease, Cost [Table Text Block]	The following table summarizes the components of our lease cost: Year ended October 31, 2021 2020 (in millions) Operating lease cost $ 51 $ 49 Variable lease cost $ 14 $ 16 Short-term lease costs, sublease income and finance lease costs were immaterial for the year ended October 31, 2021 and 2020. Supplemental cash flow information related to our operating leases was as follows: Year ended October 31, 2021 2020 (in millions) Cash payments for operating leases $ 53 $ 48 ROU assets obtained in exchange for operating lease obligations $ 78 $ 67
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	The maturities of our operating leases as of October 31, 2021 with initial terms exceeding one year were as follows: Operating Leases (in millions) 2022 $ 45 2023 38 2024 30 2025 24 Thereafter 123 Total undiscounted lease liability 260 Imputed interest 28 Total discounted lease liability $ 232

DEBT (Tables)

DEBT (Tables)	12 Months Ended
DEBT (Tables)	Oct. 31, 2021
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	The following table summarizes the components of our long-term debt: October 31, 2021 2020 (in millions) 2024 Senior Notes at 4.55% ($600 face amount less unamortized costs of $1 and $2) $ 599 $ 598 2027 Senior Notes at 4.60% ($700 face amount less unamortized costs of $4 and $5) 696 695 2029 Senior Notes at 3.00% ($500 face amount less unamortized costs of $4 and $4) 496 496 $ 1,791 $ 1,789

RETIREMENT PLANS AND POST RET_2

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Tables)	12 Months Ended
RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Tables)	Oct. 31, 2021
Retirement Benefits [Abstract]
Schedule of Defined Benefit Plans Disclosures	For the years ended October 31, 2021, 2020 and 2019, components of net periodic benefit cost (benefit) and other amounts recognized in other comprehensive income were comprised of: Defined Benefit Plans U.S. Post-Retirement Benefit Plan U.S. Plans Non-U.S. Plans 2021 2020 2019 2021 2020 2019 2021 2020 2019 (in millions) Net periodic benefit cost (benefit) Service cost — benefits earned during the period $ 24 $ 23 $ 20 $ 15 $ 15 $ 14 $ 1 $ 1 $ 1 Interest cost on benefit obligation 22 24 28 15 16 23 4 6 8 Expected return on plan assets (52) (44) (41) (77) (84) (77) (12) (13) (13) Amortization: Net actuarial loss 24 18 10 41 34 27 11 10 9 Prior service credit — — (4) — — (1) (1) (11) (14) Net periodic benefit cost (benefit) 18 21 13 (6) (19) (14) 3 (7) (9) Curtailments and settlements — — — 16 4 2 — — — Total periodic benefit cost (benefit) $ 18 $ 21 $ 13 $ 10 $ (15) $ (12) $ 3 $ (7) $ (9) Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss Net actuarial loss (gain) $ (100) $ 64 $ 77 $ 26 $ 81 $ 78 $ (38) $ 9 $ 11 Amortization: Net actuarial loss (24) (18) (10) (41) (34) (27) (11) (10) (9) Prior service credit — — 4 — — 1 1 11 14 Curtailments and settlements — — — (16) (4) (2) — — — Foreign currency — — — 1 1 (1) — — — Total recognized in other comprehensive (income) loss $ (124) $ 46 $ 71 $ (30) $ 44 $ 49 $ (48) $ 10 $ 16 Total recognized in the periodic benefit cost (benefit) and other comprehensive (income) loss $ (106) $ 67 $ 84 $ (20) $ 29 $ 37 $ (45) $ 3 $ 7
Schedule of Changes in Fair Value of Plan Assets	As of October 31, 2021 and 2020, the funded status of the defined benefit and post-retirement benefit plans was as follows: U.S. Defined Non-U.S. Defined U.S. 2021 2020 2021 2020 2021 2020 (in millions) Change in fair value of plan assets: Fair value — beginning of year $ 722 $ 615 $ 1,545 $ 1,538 $ 175 $ 176 Actual return on plan assets 189 41 134 21 45 12 Employer contributions — 100 8 10 — — Settlements — — (41) (14) — — Benefits paid (49) (34) (50) (36) (13) (13) Other — — (15) — — — Currency impact — — 27 26 — — Fair value — end of year $ 862 $ 722 $ 1,608 $ 1,545 $ 207 $ 175 Change in benefit obligation: Benefit obligation — beginning of year $ 848 $ 774 $ 1,421 $ 1,393 $ 203 $ 202 Service cost 24 23 15 15 1 1 Interest cost 22 24 15 16 4 6 Settlements — — (41) (14) — Curtailments — — — (1) — — Actuarial loss (gain) 37 62 90 18 (5) 7 Benefits paid (50) (35) (50) (36) (13) (13) Other — — (18) — — — Currency impact — — 33 30 — — Benefit obligation — end of year $ 881 $ 848 $ 1,465 $ 1,421 $ 190 $ 203 Overfunded (Underfunded) status of PBO $ (19) $ (126) $ 143 $ 124 $ 17 $ (28) Amounts recognized in the consolidated balance sheet consist of: Other assets $ — $ — $ 264 $ 311 $ 17 $ — Employee compensation and benefits (1) (1) — — — — Retirement and post-retirement benefits (18) (125) (121) (187) — (28) Net asset (liability) $ (19) $ (126) $ 143 $ 124 $ 17 $ (28) Amounts recognized in accumulated other comprehensive income (loss): Actuarial losses $ 101 $ 225 $ 457 $ 487 $ (21) $ 28 Prior service credits — — 1 1 (1) (2) Total $ 101 $ 225 $ 458 $ 488 $ (22) $ 26
Schedule of Allocation of Plan Assets	he following tables present the fair value of U.S. Defined Benefit Plans assets classified under the appropriate level of the fair value hierarchy as of October 31, 2021 and 2020: Fair Value Measurement October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Cash and cash equivalents $ 18 $ — $ 18 $ — $ — Equity 605 187 1 — 417 Fixed income 239 27 103 — 109 Total assets measured at fair value $ 862 $ 214 $ 122 $ — $ 526 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. Fair Value Measurement October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Cash and cash equivalents $ 110 $ — $ 110 $ — $ — Equity 443 124 1 — 318 Fixed income 169 9 100 — 60 Total assets measured at fair value $ 722 $ 133 $ 211 $ — $ 378 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. For U.S. Defined Benefit Plans, there was no activity relating to assets measured at fair value using significant unobservable inputs (Level 3) during 2021 and 2020. The following tables present the fair value of U.S. Post-Retirement Benefit Plan assets classified under the appropriate level of the fair value hierarchy as of October 31, 2021 and 2020: Fair Value Measurement as of October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Cash and cash equivalents $ 5 $ — $ 5 $ — $ — Equity 144 45 — — 99 Fixed income 58 6 25 — 27 Total assets measured at fair value $ 207 $ 51 $ 30 $ — $ 126 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. Fair Value Measurement as of October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Cash and cash equivalents $ 4 $ — $ 4 $ — $ — Equity 123 34 — — 89 Fixed income 48 3 28 — 17 Total assets measured at fair value $ 175 $ 37 $ 32 $ — $ 106 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. For the U.S. Post-Retirement Benefit Plan, there was no activity relating to assets measured at fair value using significant unobservable inputs (Level 3) during 2021 and 2020. The following tables present the fair value of Non-U.S. Defined Benefit Plans assets classified under the appropriate level of the fair value hierarchy as of October 31, 2021 and 2020: Fair Value Measurement as of October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Equity $ 526 $ 189 $ 2 $ — $ 335 Fixed income 718 — 235 — 483 Other investment 364 — — 364 — Total assets measured at fair value $ 1,608 $ 189 $ 237 $ 364 $ 818 (a) Certain instruments that are measured at fair value using the NAV per share practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of plan assets. Fair Value Measurement as of October 31, Quoted Prices Significant Significant Assets Measured at NAV (a) (in millions) Equity $ 452 $ 150 $ — $ — $ 302 Fixed income 1,093 — 221 — 872 Total assets measured at fair value $ 1,545 $ 150 $ 221 $ — $ 1,174
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets	Non-U.S. Defined Benefit Plans assets measured at fair value using significant unobservable inputs (Level 3), the following table summarizes the change in balances during 2021 and 2020: Year Ended October 31, 2021 2020 (in millions) Balance, beginning of year $ — $ — Unrealized gains/(losses) 17 — Purchases, sales, issuances, and settlements (7) — Transfers in (out) 354 — Balance, end of year $ 364 $ —
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets	table below presents the combined projected benefit obligation ("PBO"), accumulated benefit obligation ("ABO") and fair value of plan assets, grouping plans using comparisons of the PBO and ABO relative to the plan assets as of October 31, 2021 and 2020: 2021 2020 Benefit Fair Value of Plan Assets Benefit Fair Value of Plan Assets PBO PBO (in millions) (in millions) U.S. defined benefit plans where PBO exceeds the fair value of plan assets $ 881 $ 862 $ 848 $ 722 U.S. defined benefit plans where fair value of plan assets exceeds PBO — — — — Total $ 881 $ 862 $ 848 $ 722 Non-U.S. defined benefit plans where PBO exceeds the fair value of plan assets $ 383 $ 262 $ 433 $ 246 Non-U.S. defined benefit plans where fair value of plan assets exceeds PBO 1,082 1,346 988 1,299 Total $ 1,465 $ 1,608 $ 1,421 $ 1,545 ABO ABO U.S. defined benefit plans where ABO exceeds the fair value of plan assets $ 5 $ — $ 784 $ 722 U.S. defined benefit plans where the fair value of plan assets exceeds ABO 791 862 — — Total $ 796 $ 862 $ 784 $ 722 Non-U.S. defined benefit plans where ABO exceeds the fair value of plan assets $ 372 $ 262 $ 421 $ 246 Non-U.S. defined benefit plans where fair value of plan assets exceeds ABO 1,079 1,346 984 1,299 Total $ 1,451 $ 1,608 $ 1,405 $ 1,545
Schedule of Expected Benefit Payments	following table presents expected future benefit payments for the next 10 years. U.S. Defined Non-U.S. Defined U.S. Post-Retirement (in millions) 2022 $ 49 $ 39 $ 14 2023 $ 53 $ 42 $ 15 2024 $ 53 $ 44 $ 15 2025 $ 63 $ 44 $ 16 2026 $ 64 $ 45 $ 16 2027 - 2031 $ 310 $ 244 $ 74
Schedule of Assumptions Used	Assumptions used to calculate the net periodic benefit cost (benefit) were as follows: Year ended October 31, 2021 2020 U.S. Defined Benefit Plans: Discount rate 2.75% 3.25% Average increase in compensation levels 3.00% 3.00% Expected long-term return on assets 7.50% 7.50% Non-U.S. Defined Benefit Plans: Discount rate 0.81-1.66% 0.79-1.89% Average increase in compensation levels 2.50-2.75% 2.50-3.00% Expected long-term return on assets 4.00-6.50% 3.50-6.50% U.S. Post-Retirement Benefits Plan: Discount rate 2.25% 3.00% Expected long-term return on assets 7.50% 7.50% Current medical cost trend rate 6.25% 6.25% Ultimate medical cost trend rate 4.50% 4.50% Medical cost trend rate decreases to ultimate rate in year 2028 2027 Assumptions used to calculate the benefit obligation as of October 31, 2021 and 2020 were as follows: Year ended October 31, 2021 2020 U.S. Defined Benefit Plans: Discount rate 2.75% 2.75% Average increase in compensation levels 3.50% 3.00% Non-U.S. Defined Benefit Plans: Discount rate 0.70-1.86% 0.81-1.66% Average increase in compensation levels 2.50-2.75% 2.50-2.75% U.S. Post-Retirement Benefits Plan: Discount rate 2.75% 2.25% Current medical cost trend rate 6.00% 6.25% Ultimate medical cost trend rate 4.50% 4.50% Medical cost trend rate decreases to ultimate rate in year 2028 2028 Health care trend rates did not have a significant effect on the total service and interest cost components or on the post-retirement benefit obligation amounts reported for the U.S. Post-Retirement Benefit Plan for the years ended October 31, 2021 and 2020.

Supplemental financial inform_2

Supplemental financial information (Tables)	12 Months Ended
Supplemental financial information (Tables)	Oct. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	Cash, cash equivalents, and restricted cash October 31, 2021 2020 (in millions) Cash and cash equivalents $ 2,052 $ 1,756 Restricted cash included in other current assets — 9 Restricted cash included in other assets 16 2 Total cash, cash equivalents, and restricted cash shown in the statement of cash flows $ 2,068 $ 1,767
Schedule of Inventory, Current [Table Text Block]	Inventory October 31, 2021 2020 (in millions) Finished goods $ 329 $ 342 Purchased parts and fabricated assemblies 448 415 Total inventory $ 777 $ 757
Property, Plant and Equipment	Property, plant and equipment October 31, 2021 2020 (in millions) Land $ 61 $ 67 Buildings and leasehold improvements 785 743 Machinery and equipment 1,328 1,224 Total property, plant and equipment 2,174 2,034 Accumulated depreciation of property, plant and equipment (1,524) (1,439) Property, plant and equipment, net $ 650 $ 595 The increase in property, plant and equipment, net, for the year ended October 31, 2021, is primarily driven by capital investments to increase the resiliency of our supply chains. Asset impairments were zero in 2021, 2020 and 2019. Depreciation expense was $117 million in 2021, $104 million in 2020 and $96 million in 2019.
Standard Warranty	Activity related to the standard warranty accrual, which is included in other accrued and other long-term liabilities in our consolidated balance sheet, is as follows: Year Ended October 31, 2021 2020 (in millions) Beginning balance $ 33 $ 38 Accruals for warranties 29 24 Settlements made during the period (28) (29) Ending balance $ 34 $ 33 Accruals for warranties due within one year $ 21 $ 20 Accruals for warranties due after one year 13 13 Ending balance $ 34 $ 33

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	12 Months Ended
STOCKHOLDERS' EQUITY (Tables)	Oct. 31, 2021
Statement of Comprehensive Income [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the components of accumulated other comprehensive loss, net of tax effect: October 31, 2021 2020 (in millions) Foreign currency translation, net of tax (expense) of $(63) and $(63) $ (20) $ (10) Unrealized losses on defined benefit plans, net of tax benefit of $84 and $139 (462) (605) Unrealized gains (losses) on derivative instruments, net of tax (expense) of $(11) and $(5) 40 16 Total accumulated other comprehensive loss $ (442) $ (599) Changes in accumulated other comprehensive loss by component and related tax effects were as follows: Net defined benefit pension cost and post retirement plan costs: Foreign currency translation Actuarial losses Prior service credits Unrealized gains (losses) on derivatives Total (in millions) At October 31, 2019 $ (43) $ (536) $ 4 $ (3) $ (578) Other comprehensive income (loss) before reclassifications 33 (155) — 20 (102) Amounts reclassified out of accumulated other comprehensive gain (loss) — 68 (12) 4 60 Tax benefit (expense) — 23 3 (5) 21 Other comprehensive income (loss) 33 (64) (9) 19 (21) At October 31, 2020 (10) (600) (5) 16 (599) Other comprehensive income (loss) before reclassifications (10) 106 — 32 128 Amounts reclassified out of accumulated other comprehensive gain (loss) — 93 (1) (2) 90 Tax benefit (expense) — (55) — (6) (61) Other comprehensive income (loss) (10) 144 (1) 24 157 At October 31, 2021 $ (20) $ (456) $ (6) $ 40 $ (442)
Reclassification out of Accumulated Other Comprehensive Income	Reclassifications out of accumulated other comprehensive loss were as follows: Details about accumulated other comprehensive loss components Amounts reclassified from other comprehensive loss Affected line item in statement of operations Year Ended October 31, 2021 2020 (in millions) Unrealized gain (loss) on derivatives $ — $ (3) Cost of products 2 (1) Selling, general and administrative — 1 Benefit (provision) for income taxes 2 (3) Net defined benefit pension cost and post retirement plan costs: Net actuarial losses (93) (68) Other income (expense), net Prior service credits 1 12 Other income (expense), net (92) (56) 24 10 Provision (benefit) for income taxes (68) (46) Total reclassifications for the period $ (66) $ (49)

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	12 Months Ended
SEGMENT INFORMATION (Tables)	Oct. 31, 2021
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The profitability of each of the segments is measured after excluding share-based compensation expense, amortization of acquisition-related balances, acquisition and integration costs, a gain on an insurance settlement related to northern California wildfires, restructuring costs, interest income, interest expense and other items as noted in the reconciliations below. CSG EISG Total (in millions) Year ended October 31, 2021: Total and segment revenue $ 3,523 $ 1,418 $ 4,941 Segment income from operations $ 932 $ 444 $ 1,376 Depreciation expense $ 91 $ 26 $ 117 Year ended October 31, 2020: Total and segment revenue $ 3,132 $ 1,089 $ 4,221 Segment income from operations $ 773 $ 296 $ 1,069 Depreciation expense $ 81 $ 23 $ 104 Year ended October 31, 2019: Total revenue $ 3,168 $ 1,135 $ 4,303 Amortization of acquisition-related balances 9 — 9 Total segment revenue $ 3,177 $ 1,135 $ 4,312 Segment income from operations $ 743 $ 294 $ 1,037 Depreciation expense $ 74 $ 22 $ 96
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	The following table reconciles reportable segments' income from operations to our total enterprise income before taxes: Year Ended October 31, 2021 2020 2019 (in millions) Total reportable segments' income from operations $ 1,376 $ 1,069 $ 1,037 Share-based compensation (104) (93) (82) Amortization of acquisition-related balances (174) (224) (224) Acquisition and integration costs (9) (13) (9) Gain on insurance settlement — 32 — Restructuring and other (9) (6) (11) Income from operations, as reported 1,080 765 711 Interest income 3 11 23 Interest expense (79) (78) (80) Other income (expense), net 6 63 61 Income before taxes, as reported $ 1,010 $ 761 $ 715
Assets And Capital Expenditures Directly Managed By Each Segment	The following table presents segment assets and capital expenditures directly managed by each segment. Year Ended October 31, 2021 2020 CSG EISG Total CSG EISG Total (in millions) Segment assets $ 4,122 $ 1,523 $ 5,645 $ 3,832 $ 1,334 $ 5,166 Capital expenditures $ 130 $ 44 $ 174 $ 90 $ 27 $ 117 The following table reconciles segment assets to our total assets: October 31, 2021 2020 (in millions) Total reportable segments' assets $ 5,645 $ 5,166 Cash and cash equivalents 2,052 1,756 Long-term investments 70 61 Long-term deferred tax assets 711 740 Accumulated amortization of other intangibles (1,146) (972) Pension and other assets 449 467 Total assets $ 7,781 $ 7,218
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas	The following tables present summarized information for revenue and long-lived assets by geographic region. Revenues from external customers are generally attributed to countries based upon the customer's location. Long-lived assets consist of property, plant, and equipment, operating lease right-of-use assets and other long-term assets excluding intangible assets. United China Rest of the Total (in millions) Revenue: Year ended October 31, 2021 $ 1,803 $ 927 $ 2,211 $ 4,941 Year ended October 31, 2020 $ 1,523 $ 863 $ 1,835 $ 4,221 Year ended October 31, 2019 $ 1,584 $ 822 $ 1,897 $ 4,303 United Japan U.K. Rest of the Total (in millions) Long-lived assets: October 31, 2021 $ 533 $ 294 $ 116 $ 306 $ 1,249 October 31, 2020 $ 387 $ 272 $ 179 $ 332 $ 1,170

OVERVIEW AND SUMMARY OF SIGNI_3

OVERVIEW AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Property, Plant and Equipment [Line Items]
Accounts Receivable, Allowance for Credit Loss, Current	$ 4	$ 3
Share-based compensation expense	104	93	$ 82
Goodwill impairment	0	0	0
Impairment of Intangible Assets (Excluding Goodwill)	0	0	0
Advertising expense	21	24	22
Impairment on investments	0	0	0
Cash, Cash Equivalents and Restricted Cash Equivalents	2,068	1,767	1,600	$ 917
Excess of fair value over carrying value less debt issuance cost	178	236
Accrued vacation benefits	114	107
Foreign Currency Transaction Gain (Loss), Realized	$ 3	$ 3	2
Accounts Receivable [Member]
Property, Plant and Equipment [Line Items]
Concentration Risk, Customer	No single customer accounted for more than 10 percent of accounts receivable	No single customer accounted for more than 10 percent of accounts receivable
In Process Research and Development [Member]
Property, Plant and Equipment [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 0	$ 0	$ 0
Minimum [Member]
Property, Plant and Equipment [Line Items]
Finite lived intangible assets useful life	6 months
Maximum [Member]
Property, Plant and Equipment [Line Items]
Finite lived intangible assets useful life	12 years
Machinery and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - useful life	3 years
Machinery and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - useful life	10 years
Non-US [Member]
Property, Plant and Equipment [Line Items]
Cash, Cash Equivalents and Restricted Cash Equivalents	$ 1,600

ACQUISITIONS (Narrative) (Detai

ACQUISITIONS (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
ACQUISITIONS (Narrative) (Details) - USD ($) $ in Millions	Jan. 31, 2021	Jul. 31, 2020	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired			$ 178	$ 357	$ 88
Goodwill arising from acquisitions			100	314
Intangible assets acquired from an acquisition			83	88
In-Process R&D			7	2
Sanjole
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	$ 102
Cash acquired from acquisition	11
Goodwill arising from acquisitions	48
Intangible assets acquired from an acquisition	51
In-Process R&D	7
Eggplant
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		$ 319
Cash acquired from acquisition		11
Goodwill arising from acquisitions		280
Intangible assets acquired from an acquisition		88
Others
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired			76	38
Goodwill arising from acquisitions			52	$ 34
Intangible assets acquired from an acquisition			$ 32
Developed Technology \| Sanjole
Business Acquisition [Line Items]
Intangible assets acquired from an acquisition	$ 24
Developed Technology \| Eggplant
Business Acquisition [Line Items]
Intangible assets acquired from an acquisition		$ 38
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years	3 years
Customer Relationships \| Sanjole
Business Acquisition [Line Items]
Intangible assets acquired from an acquisition	$ 17
Customer Relationships \| Eggplant
Business Acquisition [Line Items]
Intangible assets acquired from an acquisition		$ 46
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	9 years	6 years

REVENUE (Details)

REVENUE (Details) - USD ($) $ in Millions	12 Months Ended
REVENUE (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 4,941	$ 4,221	$ 4,303
CSG
Disaggregation of Revenue [Line Items]
Revenues	3,523	3,132	3,168
EISG
Disaggregation of Revenue [Line Items]
Revenues	1,418	1,089	1,135
Americas [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,996	1,641	1,724
Americas [Member] \| CSG
Disaggregation of Revenue [Line Items]
Revenues	1,697	1,424	1,474
Americas [Member] \| EISG
Disaggregation of Revenue [Line Items]
Revenues	299	217	250
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenues	795	676	713
Europe [Member] \| CSG
Disaggregation of Revenue [Line Items]
Revenues	500	421	456
Europe [Member] \| EISG
Disaggregation of Revenue [Line Items]
Revenues	295	255	257
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,150	1,904	1,866
Asia Pacific [Member] \| CSG
Disaggregation of Revenue [Line Items]
Revenues	1,326	1,287	1,238
Asia Pacific [Member] \| EISG
Disaggregation of Revenue [Line Items]
Revenues	824	617	628
Aerospace, Defense & Government
Disaggregation of Revenue [Line Items]
Revenues	1,142	928	975
Aerospace, Defense & Government \| CSG
Disaggregation of Revenue [Line Items]
Revenues	1,142	928	975
Aerospace, Defense & Government \| EISG
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Commercial Communications
Disaggregation of Revenue [Line Items]
Revenues	2,381	2,204	2,193
Commercial Communications \| CSG
Disaggregation of Revenue [Line Items]
Revenues	2,381	2,204	2,193
Commercial Communications \| EISG
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Electronic Industrial
Disaggregation of Revenue [Line Items]
Revenues	1,418	1,089	1,135
Electronic Industrial \| CSG
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Electronic Industrial \| EISG
Disaggregation of Revenue [Line Items]
Revenues	1,418	1,089	1,135
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	4,169	3,544	3,785
Transferred at Point in Time [Member] \| CSG
Disaggregation of Revenue [Line Items]
Revenues	2,936	2,598	2,748
Transferred at Point in Time [Member] \| EISG
Disaggregation of Revenue [Line Items]
Revenues	1,233	946	1,037
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	772	677	518
Transferred over Time [Member] \| CSG
Disaggregation of Revenue [Line Items]
Revenues	587	534	420
Transferred over Time [Member] \| EISG
Disaggregation of Revenue [Line Items]
Revenues	$ 185	$ 143	$ 98

REVENUE Contract assets (Detail

REVENUE Contract assets (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Trade Accounts Receivable [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Contract with Customer, Asset, after Allowance for Credit Loss, Current	$ 84	$ 61

REVENUE Contract cost (Details)

REVENUE Contract cost (Details) - USD ($) $ in Millions	12 Months Ended
REVENUE Contract cost (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost, Net	$ 39	$ 31
Capitalized Contract Cost, Amortization	$ 77	$ 83	$ 64

REVENUE Contract liabilities (D

REVENUE Contract liabilities (Details) $ in Millions	12 Months Ended
REVENUE Contract liabilities (Details) $ in Millions	Oct. 31, 2021USD ($)
Capitalized Contract Cost [Line Items]
Balance at October 31, 2020	$ 566
Deferral of revenue billed in current period, net of recognition	487
Deferred revenue arising out of acquisitions	3
Revenue recognized that was deferred as of the beginning of the period	(391)
Foreign currency translation impact	0
Balance at October 31, 2021	$ 665

REVENUE Remaining performance o

REVENUE Remaining performance obligations (Details) $ in Millions	Oct. 31, 2021USD ($)
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 382
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-11-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Percentage	51.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2022
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-11-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Percentage	29.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-11-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Percentage	20.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period

SHARE-BASED COMPENSATION (Gener

SHARE-BASED COMPENSATION (General Disclosures) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019	Nov. 16, 2017	Jul. 16, 2014
Incentive compensation plans [Abstract]
Incentive compensation plan, number of shares authorized (in shares)	17,000,000			21,800,000	25,000,000
Term of the 2014 Stock Plan (in years)	10 years
Percentage which rate options generally vest per year (in hundredths)	25.00%
Maximum contractual term (in years)	10 years
Percentage market value of the common stock option exercise price is generally not less than (in hundredths)	100.00%
Time period after which participants of the performance stock award plan are entitled to receive unrestricted share of the company's stock, if specified performance targets are met	3 years
Minimum final share award percentage of the target award based on performance metrics (in hundredths)	0.00%
Maximum final share award percentage of the target award based on performance metrics (in hundredths)	200.00%
Percentage rate restricted stock units generally vest per year (in hundredths)	25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Employee stock purchase plan [Abstract]
Compensation percentage maximum eligible contribution to purchase shares of common stock	10.00%
ESPP eligible employee common stock purchase price ratio	85.00%
Automatic annual increase in shares authorized for issuance in ESPP, without the Board of Directors determined amount, percentage (in hundredths)	1.00%
Common stock shares authorized and available for issuance under our ESPP (in shares)	75,000,000
ESPP Employee purchased shares (in shares)	541,241	628,449	810,172
Stock Issued During Period, Value, Employee Stock Purchase Plan	$ 56	$ 53	$ 48
Number of common stock authorized and available for issuance under ESPP	19,322,516
Aggregate participant contributions	$ 30

SHARE-BASED COMPENSATION (Alloc

SHARE-BASED COMPENSATION (Allocated Share-based Compensation Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]
Share-based compensation expense	$ 104	$ 93	$ 82
Employee Service Share Based Compensation Tax Benefit Realized From Exercise of Awards as a component of income tax expense	10	12	9
MTM adjustment for financial metrics based performance awards	5	2	8
Share-based Payment Arrangement, Amount Capitalized	0	0
Cost of Products and Services [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]
Share-based compensation expense	19	16	14
Research and Development Expense [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]
Share-based compensation expense	21	19	16
Selling, General and Administrative Expenses [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]
Share-based compensation expense	$ 64	$ 58	$ 52

SHARE-BASED COMPENSATION (Fair

SHARE-BASED COMPENSATION (Fair Value Assumptions) (Details) - LTPP [Member]	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility of Keysight shares	36.00%	28.00%	25.00%
Volatility of index	23.00%	13.00%	12.00%
Price-wise correlation with selected peers	67.00%	61.00%	57.00%

SHARE-BASED COMPENSATION (Stock

SHARE-BASED COMPENSATION (Stock Option Activity) (Details) - $ / shares shares in Thousands	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted (in shares)	0
Options outstanding	300	400
Weighted-average exercise price per share, beginning of period (in dollars per share)	$ 28
Exercised (in shares)	(100)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted-average exercise price per share, end of period (in dollars per share)	$ 29	$ 28
Weighted-average exercise price per share, exercised (in dollars per share)	$ 26	$ 27	$ 27
Share-based Compensation Arrangement by Share-based Payment Award, Options forfeited and expired, Additional Disclosures [Abstract]
Compensation cost not yet recognized, period for recognition	2 years 4 months 24 days

SHARE-BASED COMPENSATION (Share

SHARE-BASED COMPENSATION (Shares Authorized by Exercise Price Range) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Payment Arrangement, Amount Capitalized	$ 0	$ 0
Sharebased Compensation Arrangement By Exercise Price Range [Abstract]
Weighted Average Remaining Contractual Life (in years)	2 years 4 months 24 days
Aggregate Intrinsic Value	$ 39
Closing stock price basis for aggregate intrinsic value (in dollars per share)	$ 180.02
Aggregate instrinsic value of options [Abstract]
Options exercised in period aggregate intrinsic value	$ 14	$ 14	$ 39
Options exercised in period aggregate weighted average exercise price (in dollars per share)	$ 26	$ 27	$ 27
Compensation cost not yet recognized, period for recognition	2 years 4 months 24 days

SHARE-BASED COMPENSATION (Non-v

SHARE-BASED COMPENSATION (Non-vested Award Activity Disclosure) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized, period for recognition	2 years 4 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested beginning (in shares)	2,634
Granted (in shares)	743
Vested (in shares)	(1,377)
Forfeited (in shares)	(47)
Change in LTP Program shares vested in the year due to performance conditions (in shares)	228
Non-vested ending (in shares)	2,181	2,634
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Non-vested beginning - Weighted Average Grant Price (in dollars per share)	$ 67
Granted - Weighted Average Grant Price (in dollars per share)	124
Vested - Weighted Average Grant Price (in dollars per share)	54
Forfeited - Weighted Average Grant Price (in dollars per share)	87
Change in LTP Program shares vested in the year due to performance conditions - Weighted Average Grant Price (in dollars per share)	52
Non-vested ending - Weighted Average Grant Price (in dollars per share)	$ 93	$ 67
Unrecognized share-based compensation costs for non-vested restricted stock awards, net of expected forfeitures	$ 62
Total fair value of restricted stock awards vested	$ 165	$ 167	$ 89

INCOME TAXES (Domestic and fore

INCOME TAXES (Domestic and foreign components of Income before taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Domestic and foreign components of income (loss) before taxes
U.S. operations	$ 89	$ 68	$ 20
Non-U.S. operations	921	693	695
Income before taxes, as reported	$ 1,010	$ 761	$ 715

INCOME TAXES (Provision (benefi

INCOME TAXES (Provision (benefit) for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Provision (benefit) for Income Taxes
U.S. federal taxes - current	$ 71	$ 16	$ 10
U.S. federal taxes - deferred	(10)	1	(8)
Non-U.S. taxes - current	90	77	91
Non-U.S. taxes - deferred	(30)	36	14
State taxes, net of federal benefit - current	8	0	(5)
State taxes, net of federal benefit - deferred	(13)	4	(8)
Income Tax Expense (Benefit)	$ 116	$ 134	$ 94

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Components of Deferred Tax Assets [Abstract]
Inventory	$ 18	$ 10
Intangibles	559	597
Property, plant and equipment	31	21
Warranty reserves	8	8
Pension benefits	34	90
Employee benefits, other than retirement	39	28
Net operating loss, capital loss, and credit carryforwards	315	286
Share-based compensation	17	16
Deferred revenue	35	32
Lease obligations	53	38
Others	7	8
Total deferred tax assets	1,116	1,134
Tax valuation allowance	(231)	(238)
Total deferred tax assets less valuation allowance	885	896
Deferred Tax Liabilities, Gross [Abstract]
Intangibles	(41)	(38)
Property, plant and equipment	(26)	(31)
Warranty reserves	0	1
Pension benefits	84	84
Employee benefits, other than retirement	1	1
Unremitted earnings of foreign subsidiaries	(21)	(37)
Deferred revenue	(4)	(3)
ROU lease assets	(51)	(36)
Others	(14)	(11)
Total deferred tax liabilities	(242)	(242)
Deferred Tax Assets, Net	643	654
Deferred Tax Liabilities, Undistributed Foreign Earnings	21	37
Undistributed Earnings of Foreign Subsidiaries	105
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries	4
Effective Income Tax Rate Reconciliation, Percent
Profit before tax times statutory rate	212	160	$ 150
State income taxes, net of federal benefit	(6)	4	(6)
Current U.S. tax on foreign earnings	58	39	48
Deferred taxes on foreign earnings not considered indefinitely reinvested	1	8	2
U.S. benefit on foreign sales	(16)	(8)	(13)
U.S. research credits	(15)	(14)	(12)
Non-U.S. income taxed at different rates	(105)	(64)	(70)
Change in unrecognized tax benefits	17	8	(12)
Share-based compensation	(6)	(7)	(5)
Officers’ compensation	6	5	4
Acquired entity integration	(15)	0	0
Release of non-US valuation allowance	(17)	0	0
Other, net	2	3	8
Total provision for income taxes	$ (116)	$ (134)	$ (94)
Effective tax rate	11.00%	18.00%	13.00%
Impact of the tax holidays decreased in income taxes	$ 70	$ 53	$ 47
The benefit of the tax holidays on net income per share (diluted)	$ 0.38	$ 0.28	$ 0.25
Amortization of Intangible Assets	$ 174	$ 220	$ 210

INCOME TAXES Operating loss car

INCOME TAXES Operating loss carryforwards (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Operating Loss Carryforwards [Line Items]
Interest and penalties relating to unrecognized tax benefits recognized	$ 4	$ 5	$ 2
US
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 6
Operating Loss Carryforwards Expiration Duration	2027 through 2029
State
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 51
Operating Loss Carryforwards Expiration Duration	2029
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 945
Operating Loss Carryforwards Expiration Duration	2024 through 2027.
Portion Of Deferred Tax Assets Operating Loss Carryforwards Foreign With Expiration Dates 2024 through 2027	$ 8
Portion Of Deferred Tax Assets Operating Loss Carryforwards Foreign With Expiration Dates 2035 through 2038	670
Portion Of Deferred Tax Assets Operating Loss Carryforwards Foreign With No Expiration Dates	267
Research Tax Credit Carryforward [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	23
SEC Schedule, 12-09, Valuation Allowance, Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	17
Acquired entities [Member]
Operating Loss Carryforwards [Line Items]
Interest and penalties relating to unrecognized tax benefits recognized			$ 4
Acquired entities [Member] \| US
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 48

INCOME TAXES Tax credit carryfo

INCOME TAXES Tax credit carryforward (Details) - Foreign Tax Authority - Capital Loss Carryforward [Member] $ in Millions	Oct. 31, 2021USD ($)
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount	$ 150
Foreign entities [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount	$ 5

INCOME TAXES Current and long t

INCOME TAXES Current and long term income tax assets and liabilities (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Income Tax Disclosure [Abstract]
Current income tax assets (included within other current assets)	$ 30	$ 53
Current income tax liabilities (included within income and other taxes payable)	(44)	(40)
Long-term income tax liabilities (included within other long-term liabilities)	(219)	(212)
Total	$ (233)	$ (199)

INCOME TAXES (Unrecognized tax

INCOME TAXES (Unrecognized tax benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Income Tax Disclosure [Abstract]
Gross Balance, beginning of year	$ 237	$ 226	$ 234
Additions due to acquisition	0	0	9
Additions for tax positions related to the current year	19	13	18
Additions for tax positions from prior years	0	2	0
Reductions for tax positions from prior years	3	1	32
Statute of limitations expirations	4	3	3
Gross Balance, end of year	$ 249	$ 237	$ 226

INCOME TAXES (Unrecognized ta_2

INCOME TAXES (Unrecognized tax benefits text) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits	$ 249	$ 237	$ 226	$ 234
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	229	221	216
Interest and penalties accrued related to unrecognized tax benefits accrued and reported	37	33	28
Interest and penalties relating to unrecognized tax benefits recognized	$ 4	$ 5	2
Acquired entities [Member]
Income Tax Contingency [Line Items]
Interest and penalties relating to unrecognized tax benefits recognized			$ 4

INCOME TAXES (Penalties) (Detai

INCOME TAXES (Penalties) (Details) $ in Millions	12 Months Ended
INCOME TAXES (Penalties) (Details) $ in Millions	Oct. 31, 2021USD ($)
Income Tax Disclosure [Abstract]
Income taxes and penalties on gains related to IP rights	$ 68

NET INCOME PER SHARE (Details)

NET INCOME PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 894	$ 627	$ 621
Basic weighted-average shares	185	187	188
Potential common shares — stock options and other employee stock plans	2	2	3
Diluted weighted-average shares	187	189	191
Net income per share - basic	$ 4.84	$ 3.35	$ 3.31
Net income per share - diluted	$ 4.78	$ 3.31	$ 3.25

NET INCOME PER SHARE Antidiluti

NET INCOME PER SHARE Antidilutive securities (Details) - shares	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0	0

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLE ASSETS (Roll Forward) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
Goodwill - Rollforward
Beginning Balance	$ 1,537	$ 1,209
Foreign currency translation impact	(9)	14
Goodwill arising from acquisitions	100	314
Ending Balance	1,628	1,537
CSG
Goodwill - Rollforward
Beginning Balance	984	942
Foreign currency translation impact	(15)	8
Goodwill arising from acquisitions	100	34
Ending Balance	1,069	984
EISG
Goodwill - Rollforward
Beginning Balance	553	267
Foreign currency translation impact	6	6
Goodwill arising from acquisitions	0	280
Ending Balance	$ 559	$ 553

GOODWILL AND OTHER INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLE ASSETS (Disclosures and Components of Other Intangibles) (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Schedule of Other Intangible Assets By Major Class [Abstract]
Gross Carrying Amount	$ 1,411	$ 1,331
Accumulated Amortization	1,146	972
Total amortizable intangible assets	265	359
In-Process R&D	7	2
Gross Book Value	1,418	1,333
Net Book Value	272	361
Developed Technology
Schedule of Other Intangible Assets By Major Class [Abstract]
Gross Carrying Amount	969	915
Accumulated Amortization	866	749
Net Book Value	103	166
Backlog
Schedule of Other Intangible Assets By Major Class [Abstract]
Gross Carrying Amount	17	17
Accumulated Amortization	17	14
Net Book Value	0	3
Trademarks/Trade Name
Schedule of Other Intangible Assets By Major Class [Abstract]
Gross Carrying Amount	36	35
Accumulated Amortization	28	25
Net Book Value	8	10
Customer Relationships
Schedule of Other Intangible Assets By Major Class [Abstract]
Gross Carrying Amount	389	364
Accumulated Amortization	235	184
Net Book Value	$ 154	$ 180

GOODWILL AND OTHER INTANGIBLE_5

GOODWILL AND OTHER INTANGIBLE ASSETS (Narratives and Amortization Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment during the period	$ 0	$ 0	$ 0
Goodwill, Impaired, Accumulated Impairment Loss	709	709	709
Goodwill arising from acquisitions	100	314
Intangible assets acquired from acquisitions	83	88
Finite-Lived Intangible Assets, Translation Adjustments	3	2
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	174	$ 220	$ 210
Amortization Expense, Maturity Schedule [Abstract]
2022	100
2023	77
2024	38
2025	21
2026	13
Thereafter	$ 16

FAIR VALUE MEASUREMENTS (Fair V

FAIR VALUE MEASUREMENTS (Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) - Fair Value, Recurring [Member] - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Assets, Short-term [Abstract]
Cash equivalents (money market funds)	$ 1,296	$ 1,047
Foreign Currency Contract, Asset, Fair Value Disclosure	6	3
Interest Rate Derivative Assets, at Fair Value	48	23
Assets, Long-term [Abstract]
Equity investments	60	52
Equity Securities without Readily Determinable Fair Value, Amount	10	9
Total assets measured at fair value	1,420	1,134
Liabilities, Short-term [Abstract]
Foreign Currency Contracts, Liability, Fair Value Disclosure	4	4
Liabilities, Long-term [Abstract]
Deferred compensation liability	24	18
Total liabilities measured at fair value	28	22
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets, Short-term [Abstract]
Cash equivalents (money market funds)	1,296	1,047
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Interest Rate Derivative Assets, at Fair Value	0	0
Assets, Long-term [Abstract]
Equity investments	60	52
Equity Securities without Readily Determinable Fair Value, Amount	0	0
Total assets measured at fair value	1,356	1,099
Liabilities, Short-term [Abstract]
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Liabilities, Long-term [Abstract]
Deferred compensation liability	0	0
Total liabilities measured at fair value	0	0
Significant Other Observable Inputs (Level 2)
Assets, Short-term [Abstract]
Cash equivalents (money market funds)	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	6	3
Interest Rate Derivative Assets, at Fair Value	48	23
Assets, Long-term [Abstract]
Equity investments	0	0
Equity Securities without Readily Determinable Fair Value, Amount	0	0
Total assets measured at fair value	54	26
Liabilities, Short-term [Abstract]
Foreign Currency Contracts, Liability, Fair Value Disclosure	4	4
Liabilities, Long-term [Abstract]
Deferred compensation liability	24	18
Total liabilities measured at fair value	28	22
Significant Unobservable Inputs (Level 3)
Assets, Short-term [Abstract]
Cash equivalents (money market funds)	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Interest Rate Derivative Assets, at Fair Value	0	0
Assets, Long-term [Abstract]
Equity investments	0	0
Equity Securities without Readily Determinable Fair Value, Amount	0	0
Total assets measured at fair value	0	0
Liabilities, Short-term [Abstract]
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Liabilities, Long-term [Abstract]
Deferred compensation liability	0	0
Total liabilities measured at fair value	$ 0	$ 0

Equity Investments (Details)

Equity Investments (Details) - USD ($) $ in Millions	12 Months Ended
Equity Investments (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Fair Value Disclosures [Abstract]
Realized Investment Gains (Losses)	$ 0	$ 0	$ 1
Unrealized Gain (Loss) on Investments	$ 4	$ 11	$ 6

DERIVATIVES (Additional Informa

DERIVATIVES (Additional Information) (Details) $ in Millions	12 Months Ended
	Oct. 31, 2021USD ($)
Derivative [Line Items]
Cash flow hedge loss to be reclassified within twelve months	$ 3
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	600
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), OCI	$ (26)
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, number of contracts	68
Foreign Exchange Forward [Member] \| Cash Flow Hedges [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, number of contracts	219

DERIVATIVES (Aggregated Notiona

DERIVATIVES (Aggregated Notional Amounts by Currency and Designation) (Details) - Forward Contracts Buy/(Sell) [Member] $ in Millions	Oct. 31, 2021USD ($)
Designated as Hedging Instrument [Member] \| Long [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ (89)
Not Designated as Hedging Instrument [Member] \| Short [Member]
Derivative [Line Items]
Derivative, Notional Amount	(122)
Euro [Member] \| Designated as Hedging Instrument [Member] \| Long [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Derivative, Notional Amount	(35)
Euro [Member] \| Not Designated as Hedging Instrument [Member] \| Long [Member]
Derivative [Line Items]
Derivative, Notional Amount	(13)
British Pound [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Derivative, Notional Amount	(19)
British Pound [Member] \| Not Designated as Hedging Instrument [Member] \| Short [Member]
Derivative [Line Items]
Derivative, Notional Amount	(87)
Singapore Dollar [Member] \| Designated as Hedging Instrument [Member] \| Long [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Derivative, Notional Amount	(25)
Singapore Dollar [Member] \| Not Designated as Hedging Instrument [Member] \| Long [Member]
Derivative [Line Items]
Derivative, Notional Amount	(28)
Malaysian Ringgit [Member] \| Designated as Hedging Instrument [Member] \| Long [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Derivative, Notional Amount	(98)
Malaysian Ringgit [Member] \| Not Designated as Hedging Instrument [Member] \| Long [Member]
Derivative [Line Items]
Derivative, Notional Amount	(10)
Japanese Yen [Member] \| Designated as Hedging Instrument [Member] \| Short [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Derivative, Notional Amount	(101)
Japanese Yen [Member] \| Not Designated as Hedging Instrument [Member] \| Short [Member]
Derivative [Line Items]
Derivative, Notional Amount	(42)
Other [Member] \| Designated as Hedging Instrument [Member] \| Long [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Derivative, Notional Amount	(13)
Other [Member] \| Not Designated as Hedging Instrument [Member] \| Short [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ (44)

DERIVATIVES (Fair Value and Bal

DERIVATIVES (Fair Value and Balance Sheet Location) (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Derivative [Line Items]
Derivative Asset, Fair Value	$ 54	$ 26
Derivative Liability, Fair Value	4	4
Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member] \| Foreign Exchange Contract [Member] \| Other current assets
Derivative [Line Items]
Derivative Asset, Fair Value	5	2
Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member] \| Foreign Exchange Contract [Member] \| Other accrued liabilities
Derivative [Line Items]
Derivative Liability, Fair Value	1	3
Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member] \| Interest Rate Swap [Member] \| Other assets
Derivative [Line Items]
Derivative Asset, Fair Value	48	23
Derivatives Not Designated as Hedging Instruments [Member] \| Foreign Exchange Contract [Member] \| Other current assets
Derivative [Line Items]
Derivative Asset, Fair Value	1	1
Derivatives Not Designated as Hedging Instruments [Member] \| Foreign Exchange Contract [Member] \| Other accrued liabilities
Derivative [Line Items]
Derivative Liability, Fair Value	$ 3	$ 1

DERIVATIVES (Effect on Statemen

DERIVATIVES (Effect on Statement of Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Interest Rate Swap [Member]
Derivative [Line Items]
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), OCI	$ (26)
Derivatives Not Designated as Hedging Instruments [Member] \| Foreign Exchange Contract [Member] \| Other Income (Expense) [Member]
Derivative [Line Items]
Gain (loss) recognized in other income (expense), net	(3)	$ 4	$ (5)
Cash Flow Hedges [Member] \| Designated as Hedging Instrument [Member] \| Interest Rate Swap [Member] \| Accumulated Other Comprehensive Income (Loss) [Member]
Derivative [Line Items]
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), OCI	26	23	0
Cash Flow Hedges [Member] \| Designated as Hedging Instrument [Member] \| Foreign Exchange Contract [Member] \| Accumulated Other Comprehensive Income (Loss) [Member]
Derivative [Line Items]
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), OCI	6	(3)	(5)
Cash Flow Hedges [Member] \| Designated as Hedging Instrument [Member] \| Foreign Exchange Contract [Member] \| Cost of Products and Services [Member]
Derivative [Line Items]
Gain (loss) reclassified from accumulated other comprehensive income (loss) into earnings:	0	(3)	(1)
Cash Flow Hedges [Member] \| Designated as Hedging Instrument [Member] \| Foreign Exchange Contract [Member] \| Selling, General and Administrative Expenses [Member]
Derivative [Line Items]
Gain (loss) reclassified from accumulated other comprehensive income (loss) into earnings:	2	(1)	(2)
Direct expense [Member] \| Cash Flow Hedges [Member] \| Designated as Hedging Instrument [Member] \| Foreign Exchange Contract [Member] \| Cost of Products and Services [Member]
Derivative [Line Items]
Gain (Loss) on Components Excluded from Assessment of Price Risk Cash Flow Hedge Effectiveness	0	2	3
Amortization [Member] \| Cash Flow Hedges [Member] \| Designated as Hedging Instrument [Member] \| Foreign Exchange Contract [Member] \| Cost of Products and Services [Member]
Derivative [Line Items]
Gain (Loss) on Components Excluded from Assessment of Price Risk Cash Flow Hedge Effectiveness	1	1	0
Amortization [Member] \| Cash Flow Hedges [Member] \| Designated as Hedging Instrument [Member] \| Foreign Exchange Contract [Member] \| Selling, General and Administrative Expenses [Member]
Derivative [Line Items]
Gain (Loss) on Components Excluded from Assessment of Price Risk Cash Flow Hedge Effectiveness	$ 1	$ 0	$ 0

LEASES (Details)

LEASES (Details) - USD ($) $ in Millions	12 Months Ended
LEASES (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Leases [Abstract]
Lessee, Operating Lease, Description	We have operating leases for items including office space, order fulfillment, sales and service centers, R&D and certain equipment, primarily automobiles. Our leases have remaining terms of up to 13 years, some of which may include options to extend the leases, primarily for 3 to 5 years. We consider options to renew in our lease terms and measurement of ROU assets and lease liabilities if we determine they are reasonably certain to be exercised.
Operating Lease, Weighted Average Remaining Lease Term	8 years 2 months 12 days	7 years 3 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	3.00%	3.00%
Operating lease cost	$ 51	$ 49
Variable lease cost	$ 14	$ 16

LEASES Supplemental information

LEASES Supplemental information related to leases (details) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
Leases [Abstract]
Cash payments for operating leases	$ 53	$ 48
ROU assets obtained in exchange for operating lease obligations	$ 78	$ 67

LEASES Maturity analysis (Detai

LEASES Maturity analysis (Details) $ in Millions	Oct. 31, 2021USD ($)
Leases [Abstract]
2022	$ 45
2023	38
2024	30
2025	24
Thereafter	123
Total undiscounted lease liability	260
Imputed interest	28
Operating Lease, Liability	$ 232

LEASES Lessor disclosure (Detai

LEASES Lessor disclosure (Details) - USD ($) $ in Millions	12 Months Ended
LEASES Lessor disclosure (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Leases [Abstract]
Rental Income, Nonoperating	$ 11	$ 11

DEBT Summary of Long term debt

DEBT Summary of Long term debt incl. unamortized cost (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Debt Instrument [Line Items]
Long-term Debt	$ 1,791	$ 1,789
4.55% Senior Notes 2024
Debt Instrument [Line Items]
Senior notes, Unamortized Discount (Premium) and Debt Issuance Costs, Net	$ 1	2
Debt Instrument, Interest Rate, Stated Percentage	4.55%
Debt Instrument, Face Amount	$ 600
4.60% Senior Notes 2027
Debt Instrument [Line Items]
Senior notes, Unamortized Discount (Premium) and Debt Issuance Costs, Net	$ 4	5
Debt Instrument, Interest Rate, Stated Percentage	4.60%
Debt Instrument, Face Amount	$ 700
3.00% Senior Notes 2029
Debt Instrument [Line Items]
Senior notes, Unamortized Discount (Premium) and Debt Issuance Costs, Net	$ 4	4
Debt Instrument, Interest Rate, Stated Percentage	3.00%
Debt Instrument, Face Amount	$ 500
4.55% Senior Notes 2024
Debt Instrument [Line Items]
Senior Notes	599	598
4.60% Senior Notes 2027
Debt Instrument [Line Items]
Senior Notes	696	695
3.00% Senior Notes 2029
Debt Instrument [Line Items]
Senior Notes	$ 496	$ 496

DEBT (Credit Facility) (Details

DEBT (Credit Facility) (Details) - Revolving Credit Facility [Member] $ in Millions	12 Months Ended
	Oct. 31, 2021USD ($)
Line of Credit Facility [Line Items]
Line of Credit Facility, Initiation Date	Jul. 30, 2021
Line of Credit Facility, Maximum Borrowing Capacity	$ 750
Line of Credit Facility, Expiration Date	Jul. 30, 2026
Additional amount of drawings	$ 250
Line of Credit Facility, Fair Value of Amount Outstanding	$ 0
Line of Credit Facility, Covenant Compliance	We were in compliance with the covenants of the Revolving Credit Facility during the year ended October 31, 2021.
London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR + 1 percent along with a facility fee of 0.125 percent per annum.

DEBT (Components and Additional

DEBT (Components and Additional Disclosures) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Debt Instrument [Line Items]
Repayments of Debt	$ 0	$ 7	$ 500
Debt Instrument, Covenant Compliance	We were in compliance with the covenants of our senior notes during the year ended October 31, 2021.
Letters of credit outstanding, amount	$ 40	$ 40
4.55% Senior Notes 2024
Debt Instrument [Line Items]
Aggregate face amount of debt	$ 600
Percentage Of Face Amount Of Debt Instrument Issued	99.966%
Fixed interest rate per annum	4.55%
Debt Instrument, Frequency of Periodic Payment	semi-annually
Debt Issuance Costs, Gross	$ 5
Maturity date	Oct. 30, 2024
4.60% Senior Notes 2027
Debt Instrument [Line Items]
Aggregate face amount of debt	$ 700
Percentage Of Face Amount Of Debt Instrument Issued	99.873%
Fixed interest rate per annum	4.60%
Debt Instrument, Frequency of Periodic Payment	semi-annually
Debt Issuance Costs, Gross	$ 6
Maturity date	Apr. 6, 2027
3.00% Senior Notes 2029
Debt Instrument [Line Items]
Aggregate face amount of debt	$ 500
Percentage Of Face Amount Of Debt Instrument Issued	99.914%
Fixed interest rate per annum	3.00%
Debt Instrument, Frequency of Periodic Payment	semi-annually
Debt Issuance Costs, Gross	$ 4
Maturity date	Oct. 30, 2029

DEBT Long Term and Short Term D

DEBT Long Term and Short Term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
Debt Instrument [Line Items]
Long-term Debt	$ 1,791	$ 1,789
Long-term Debt, Excluding Current Maturities	1,791	$ 1,789
3.00% Senior Notes 2029
Debt Instrument [Line Items]
Debt Issuance Costs, Gross	4
Debt Instrument, Face Amount	$ 500
Percentage Of Face Amount Of Debt Instrument Issued	99.914%
Maturity date	Oct. 30, 2029
Debt Instrument, Interest Rate, Stated Percentage	3.00%
Debt Instrument, Frequency of Periodic Payment	semi-annually
4.55% Senior Notes 2024
Debt Instrument [Line Items]
Debt Issuance Costs, Gross	$ 5
Debt Instrument, Face Amount	$ 600
Percentage Of Face Amount Of Debt Instrument Issued	99.966%
Maturity date	Oct. 30, 2024
Debt Instrument, Interest Rate, Stated Percentage	4.55%
Debt Instrument, Frequency of Periodic Payment	semi-annually
4.60% Senior Notes 2027
Debt Instrument [Line Items]
Debt Issuance Costs, Gross	$ 6
Debt Instrument, Face Amount	$ 700
Percentage Of Face Amount Of Debt Instrument Issued	99.873%
Maturity date	Apr. 6, 2027
Debt Instrument, Interest Rate, Stated Percentage	4.60%
Debt Instrument, Frequency of Periodic Payment	semi-annually

RETIREMENT PLANS AND POST RET_3

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Deferred Compensation Plan Assets	$ 267
Accumulated other comprehensive loss, net of tax	(462)	$ (605)
Cost recognized	28	27	$ 25
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	5
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	1
UNITED STATES \| Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost — benefits earned during the period	1	1	1
Fair value of plan assets	207	175	176
Benefit obligation	190	203	202
Employer contributions	0	0
UNITED STATES \| Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost — benefits earned during the period	24	23	20
Fair value of plan assets	862	722	615
Benefit obligation	881	848	774
Employer contributions	0	100
Foreign Plan [Member] \| Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost — benefits earned during the period	15	15	14
Fair value of plan assets	1,608	1,545	1,538
Benefit obligation	1,465	1,421	$ 1,393
Employer contributions	8	$ 10
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 12

RETIREMENT PLANS AND POST RET_4

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Components) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
UNITED STATES \| Pension Plan [Member]
Net periodic benefit cost (benefit) [Abstract]
Service cost — benefits earned during the period	$ 24	$ 23	$ 20
Interest cost on benefit obligation	22	24	28
Expected return on plan assets	(52)	(44)	(41)
Net actuarial loss	24	18	10
Prior service credit	0	0	(4)
Net periodic benefit cost (benefit)	18	21	13
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	0	0
Total periodic benefit cost (benefit)	18	21	13
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net actuarial loss (gain)	(100)	64	77
Net actuarial loss	(24)	(18)	(10)
Prior service credit	0	0	4
Curtailments and settlements	0	0	0
Foreign currency	0	0	0
Total recognized in other comprehensive (income) loss	(124)	46	71
Total recognized in the periodic benefit cost (benefit) and other comprehensive (income) loss	(106)	67	84
Change in fair value of plan assets: [Roll Forward]
Fair value — beginning of year	722	615
Actual return on plan assets	189	41
Employer contributions	0	100
Defined Benefit Plan, Plan Assets, Payment for Settlement	0	0
Defined Benefit Plan, Plan Assets, Benefits Paid	(49)	(34)
Defined Benefit Plan, Plan Assets, Other	0	0
Currency impact	0	0
Fair value — end of year	862	722	615
Change in benefit obligation: [Roll Forward]
Benefit obligation — beginning of year	848	774
Service cost	24	23
Interest cost	22	24	28
Settlements	0	0
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0	0
Actuarial loss (gain)	37	(62)
Benefits paid	(50)	(35)
Defined Benefit Plan, Benefit Obligation, Other	0	0
Currency impact	0	0
Benefit obligation — end of year	881	848	774
Funded status of plan [Abstract]
Overfunded (Underfunded) status of PBO	(19)	(126)
UNITED STATES \| Other Postretirement Benefits Plan [Member]
Net periodic benefit cost (benefit) [Abstract]
Service cost — benefits earned during the period	1	1	1
Interest cost on benefit obligation	4	6	8
Expected return on plan assets	(12)	(13)	(13)
Net actuarial loss	11	10	9
Prior service credit	(1)	(11)	(14)
Net periodic benefit cost (benefit)	3	(7)	(9)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	0	0
Total periodic benefit cost (benefit)	3	(7)	(9)
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net actuarial loss (gain)	(38)	9	11
Net actuarial loss	(11)	(10)	(9)
Prior service credit	1	11	14
Curtailments and settlements	0	0	0
Foreign currency	0	0	0
Total recognized in other comprehensive (income) loss	(48)	10	16
Total recognized in the periodic benefit cost (benefit) and other comprehensive (income) loss	(45)	3	7
Change in fair value of plan assets: [Roll Forward]
Fair value — beginning of year	175	176
Actual return on plan assets	45	12
Employer contributions	0	0
Defined Benefit Plan, Plan Assets, Payment for Settlement	0	0
Defined Benefit Plan, Plan Assets, Benefits Paid	(13)	(13)
Defined Benefit Plan, Plan Assets, Other	0	0
Currency impact	0	0
Fair value — end of year	207	175	176
Change in benefit obligation: [Roll Forward]
Benefit obligation — beginning of year	203	202
Service cost	1	1
Interest cost	4	6	8
Settlements		0
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0	0
Actuarial loss (gain)	(5)	(7)
Benefits paid	(13)	(13)
Defined Benefit Plan, Benefit Obligation, Other	0	0
Currency impact	0	0
Benefit obligation — end of year	190	203	202
Funded status of plan [Abstract]
Overfunded (Underfunded) status of PBO	17	(28)
Foreign Plan [Member] \| Pension Plan [Member]
Net periodic benefit cost (benefit) [Abstract]
Service cost — benefits earned during the period	15	15	14
Interest cost on benefit obligation	15	16	23
Expected return on plan assets	(77)	(84)	(77)
Net actuarial loss	41	34	27
Prior service credit	0	0	(1)
Net periodic benefit cost (benefit)	(6)	(19)	(14)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	16	4	2
Total periodic benefit cost (benefit)	10	(15)	(12)
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net actuarial loss (gain)	26	81	78
Net actuarial loss	(41)	(34)	(27)
Prior service credit	0	0	1
Curtailments and settlements	(16)	(4)	(2)
Foreign currency	1	1	(1)
Total recognized in other comprehensive (income) loss	(30)	44	49
Total recognized in the periodic benefit cost (benefit) and other comprehensive (income) loss	(20)	29	37
Change in fair value of plan assets: [Roll Forward]
Fair value — beginning of year	1,545	1,538
Actual return on plan assets	134	21
Employer contributions	8	10
Defined Benefit Plan, Plan Assets, Payment for Settlement	(41)	(14)
Defined Benefit Plan, Plan Assets, Benefits Paid	(50)	(36)
Defined Benefit Plan, Plan Assets, Other	(15)	0
Currency impact	27	26
Fair value — end of year	1,608	1,545	1,538
Change in benefit obligation: [Roll Forward]
Benefit obligation — beginning of year	1,421	1,393
Service cost	15	15
Interest cost	15	16	23
Settlements	41	14
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0	(1)
Actuarial loss (gain)	90	18
Benefits paid	(50)	(36)
Defined Benefit Plan, Benefit Obligation, Other	(18)	0
Currency impact	33	30
Benefit obligation — end of year	1,465	1,421	$ 1,393
Funded status of plan [Abstract]
Overfunded (Underfunded) status of PBO	$ 143	$ 124

RETIREMENT PLANS AND POST RET_5

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Financial Statement Location) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
UNITED STATES \| Pension Plan [Member]
Amounts recognized in the consolidated balance sheet [Abstract]
Other assets	$ 0	$ 0
Employee compensation and benefits	(1)	(1)
Retirement and post-retirement benefits	(18)	(125)
Net asset (liability)	(19)	(126)
Amounts Recognized in Accumulated Other Comprehensive Income (loss): [Abstract]
Actuarial losses	101	225
Prior service cost (credits)	0	0
Total	101	225
UNITED STATES \| Other Postretirement Benefits Plan [Member]
Amounts recognized in the consolidated balance sheet [Abstract]
Other assets	17	0
Employee compensation and benefits	0	0
Retirement and post-retirement benefits	0	(28)
Net asset (liability)	17	(28)
Amounts Recognized in Accumulated Other Comprehensive Income (loss): [Abstract]
Actuarial losses	(21)	28
Prior service cost (credits)	(1)	(2)
Total	(22)	26
Foreign Plan [Member] \| Pension Plan [Member]
Amounts recognized in the consolidated balance sheet [Abstract]
Other assets	264	311
Employee compensation and benefits	0	0
Retirement and post-retirement benefits	(121)	(187)
Net asset (liability)	143	124
Amounts Recognized in Accumulated Other Comprehensive Income (loss): [Abstract]
Actuarial losses	457	487
Prior service cost (credits)	1	1
Total	$ 458	$ 488

RETIREMENT PLANS AND POST RET_6

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Target Allocations) (Details)	Oct. 31, 2021
UNITED STATES \| Pension Plan [Member] \| Equity
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	70.00%
UNITED STATES \| Pension Plan [Member] \| Fixed income investments
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	30.00%
UNITED STATES \| Other Pension, Postretirement and Supplemental Plans [Member] \| Equity
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	60.00%
UNITED STATES \| Other Pension, Postretirement and Supplemental Plans [Member] \| Fixed income investments
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	40.00%
Minimum [Member] \| Foreign Plan [Member] \| Pension Plan [Member] \| Equity
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	5.00%
Minimum [Member] \| Foreign Plan [Member] \| Pension Plan [Member] \| Fixed income investments
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	40.00%
Minimum [Member] \| Foreign Plan [Member] \| Pension Plan [Member] \| Cash
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	0.00%
Maximum [Member] \| Foreign Plan [Member] \| Pension Plan [Member] \| Equity
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	60.00%
Maximum [Member] \| Foreign Plan [Member] \| Pension Plan [Member] \| Fixed income investments
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	64.00%
Maximum [Member] \| Foreign Plan [Member] \| Pension Plan [Member] \| Cash
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage of Plan Assets	50.00%

RETIREMENT PLANS AND POST RET_7

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (By Fair Value Hierarchy) (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
UNITED STATES \| Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	$ 862	$ 722	$ 615
Other assets	0	0
UNITED STATES \| Pension Plan [Member] \| Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	18	110
UNITED STATES \| Pension Plan [Member] \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	605	443
UNITED STATES \| Pension Plan [Member] \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	239	169
UNITED STATES \| Pension Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	214	133
UNITED STATES \| Pension Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Pension Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	187	124
UNITED STATES \| Pension Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	27	9
UNITED STATES \| Pension Plan [Member] \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	122	211
UNITED STATES \| Pension Plan [Member] \| Significant Other Observable Inputs (Level 2) \| Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	18	110
UNITED STATES \| Pension Plan [Member] \| Significant Other Observable Inputs (Level 2) \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1	1
UNITED STATES \| Pension Plan [Member] \| Significant Other Observable Inputs (Level 2) \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	103	100
UNITED STATES \| Pension Plan [Member] \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Pension Plan [Member] \| Significant Unobservable Inputs (Level 3) \| Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Pension Plan [Member] \| Significant Unobservable Inputs (Level 3) \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Pension Plan [Member] \| Significant Unobservable Inputs (Level 3) \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Pension Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Cash and cash equivalents at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Pension Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Equity at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	417	318
UNITED STATES \| Pension Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Fixed Income securities at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	109	60
UNITED STATES \| Pension Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Total assets at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	526	378
UNITED STATES \| Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	207	175	176
Other assets	17	0
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	5	4
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	144	123
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	58	48
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	51	37
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	45	34
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	6	3
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	30	32
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Significant Other Observable Inputs (Level 2) \| Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	5	4
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Significant Other Observable Inputs (Level 2) \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Significant Other Observable Inputs (Level 2) \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	25	28
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Significant Unobservable Inputs (Level 3) \| Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Significant Unobservable Inputs (Level 3) \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Significant Unobservable Inputs (Level 3) \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Cash and cash equivalents at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Equity at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	99	89
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Fixed Income securities at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	27	17
UNITED STATES \| Other Postretirement Benefits Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Total assets at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	126	106
Foreign Plan [Member] \| Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1,608	1,545	1,538
Other assets	264	311
Foreign Plan [Member] \| Pension Plan [Member] \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	526	452
Foreign Plan [Member] \| Pension Plan [Member] \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	718	1,093
Foreign Plan [Member] \| Pension Plan [Member] \| Other Investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	364
Foreign Plan [Member] \| Pension Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	189	150
Foreign Plan [Member] \| Pension Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	189	150
Foreign Plan [Member] \| Pension Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] \| Pension Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Other Investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
Foreign Plan [Member] \| Pension Plan [Member] \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	237	221
Foreign Plan [Member] \| Pension Plan [Member] \| Significant Other Observable Inputs (Level 2) \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	2	0
Foreign Plan [Member] \| Pension Plan [Member] \| Significant Other Observable Inputs (Level 2) \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	235	221
Foreign Plan [Member] \| Pension Plan [Member] \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	364	0	$ 0
Foreign Plan [Member] \| Pension Plan [Member] \| Significant Unobservable Inputs (Level 3) \| Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] \| Pension Plan [Member] \| Significant Unobservable Inputs (Level 3) \| Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] \| Pension Plan [Member] \| Significant Unobservable Inputs (Level 3) \| Other Investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	364
Foreign Plan [Member] \| Pension Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Equity at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	335	302
Foreign Plan [Member] \| Pension Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Fixed Income securities at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	483	872
Foreign Plan [Member] \| Pension Plan [Member] \| Fair Value Measured at Net Asset Value Per Share \| Total assets at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	$ 818	$ 1,174

RETIREMENT PLANS AND POST RET_8

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Assets Measured at Fair Value Using Significant Unobservable Inputs) (Level 3) (Details) - Foreign Plan [Member] - Pension Plan [Member] - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Fair value — beginning of year	$ 1,545	$ 1,538
Fair value — end of year	1,608	1,545
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Fair value — beginning of year	0	0
Unrealized gains/(losses)	17	0
Purchases, sales, issuances, and settlements	(7)	0
Transfers in (out)	354	0
Fair value — end of year	$ 364	$ 0

RETIREMENT PLANS AND POST RET_9

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (PBO, ABO, and Fair Value of Plan Assets) (Details) - Pension Plan [Member] - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
UNITED STATES
Projected benefit obligation and fair value of plan assets [Abstract]
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation	$ 881	$ 848
Fair value of plan assets in excess of projected benefit obligation - aggregate benefit obligation	0	0
Total projected benefit obligation - aggregate benefit obligation	881	848
Accumulated benefit obligation in excess of fair value of plan assets - aggregate benefit obligation	5	784
Fair value of plan assets in excess of accumulated benefit obligation - aggregate benefit obligation	791	0
Total accumulated benefit obligation - aggregate benefit obligation	796	784
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets	862	722
Fair value of plan assets in excess of benefit obligation - aggregate fair value of plan assets	0	0
Total projected benefit obligation - aggregate fair value of plan assets	862	722
Accumulated benefit obligation in excess of accumulated benefit obligation - aggregate fair value of plan assets	0	722
Fair value of plan assets in excess of accumulated benefit obligation - aggregate fair value of plan assets	862	0
Total accumulated benefit obligation - aggregate fair value of plan assets	862	722
Foreign Plan [Member]
Projected benefit obligation and fair value of plan assets [Abstract]
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation	383	433
Fair value of plan assets in excess of projected benefit obligation - aggregate benefit obligation	1,082	988
Total projected benefit obligation - aggregate benefit obligation	1,465	1,421
Accumulated benefit obligation in excess of fair value of plan assets - aggregate benefit obligation	372	421
Fair value of plan assets in excess of accumulated benefit obligation - aggregate benefit obligation	1,079	984
Total accumulated benefit obligation - aggregate benefit obligation	1,451	1,405
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets	262	246
Fair value of plan assets in excess of benefit obligation - aggregate fair value of plan assets	1,346	1,299
Total projected benefit obligation - aggregate fair value of plan assets	1,608	1,545
Accumulated benefit obligation in excess of accumulated benefit obligation - aggregate fair value of plan assets	262	246
Fair value of plan assets in excess of accumulated benefit obligation - aggregate fair value of plan assets	1,346	1,299
Total accumulated benefit obligation - aggregate fair value of plan assets	$ 1,608	$ 1,545

RETIREMENT PLANS AND POST RE_10

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Expected Benefit Payments) (Details) $ in Millions	Oct. 31, 2021USD ($)
UNITED STATES \| Pension Plan [Member]
Future benefit payments [Abstract]
2022	$ 49
2023	53
2024	53
2025	63
2026	64
2027 - 2031	310
UNITED STATES \| Other Postretirement Benefits Plan [Member]
Future benefit payments [Abstract]
2022	14
2023	15
2024	15
2025	16
2026	16
2027 - 2031	74
Foreign Plan [Member] \| Pension Plan [Member]
Future benefit payments [Abstract]
2022	39
2023	42
2024	44
2025	44
2026	45
2027 - 2031	$ 244

RETIREMENT PLANS AND POST RE_11

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Assumptions) (Details)	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
UNITED STATES \| Pension Plan [Member]
Weighted average assumptions used in calculating net periodic benefit cost [Abstract]
Discount rate - net periodic rate (in hundredths)	2.75%	3.25%
Average increasee in compensation levels - net periodic costs (in hundredths)	3.00%	3.00%
Expected long-term return on assets - net periodic costs (in hundredths)	7.50%	7.50%
Weighted average assumptions used in calculating benefit obligation [Abstract]
Discount rate - benefit obligation (in hundredths)	2.75%	2.75%
Average increase in compensation levels - net periodic costs (in hundredths)	3.50%	3.00%
UNITED STATES \| Other Postretirement Benefits Plan [Member]
Weighted average assumptions used in calculating net periodic benefit cost [Abstract]
Discount rate - net periodic rate (in hundredths)	2.25%	3.00%
Expected long-term return on assets - net periodic costs (in hundredths)	7.50%	7.50%
Current medical cost trend rate (in hundredths)	6.25%	6.25%
Ultimate medical cost trend rate (in hundredths)	4.50%	4.50%
Medical cost trend rate decreases to ultimate rate in year	2028	2027
Weighted average assumptions used in calculating benefit obligation [Abstract]
Discount rate - benefit obligation (in hundredths)	2.75%	2.25%
Defined Benefit Plan Current Health Care Cost Trend Rate Benefit Obligation	6.00%	6.25%
Defined Benefit Plan Ultimate Health Care Cost Trend Rate Benefit Obligation	4.50%	4.50%
Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate Benefit Obligation	2028	2028
Foreign Plan [Member] \| Pension Plan [Member] \| Minimum [Member]
Weighted average assumptions used in calculating net periodic benefit cost [Abstract]
Discount rate - net periodic rate (in hundredths)	0.81%	0.79%
Average increasee in compensation levels - net periodic costs (in hundredths)	2.50%	2.50%
Expected long-term return on assets - net periodic costs (in hundredths)	4.00%	3.50%
Weighted average assumptions used in calculating benefit obligation [Abstract]
Discount rate - benefit obligation (in hundredths)	0.70%	0.81%
Average increase in compensation levels - net periodic costs (in hundredths)	2.50%	2.50%
Foreign Plan [Member] \| Pension Plan [Member] \| Maximum [Member]
Weighted average assumptions used in calculating net periodic benefit cost [Abstract]
Discount rate - net periodic rate (in hundredths)	1.66%	1.89%
Average increasee in compensation levels - net periodic costs (in hundredths)	2.75%	3.00%
Expected long-term return on assets - net periodic costs (in hundredths)	6.50%	6.50%
Weighted average assumptions used in calculating benefit obligation [Abstract]
Discount rate - benefit obligation (in hundredths)	1.86%	1.66%
Average increase in compensation levels - net periodic costs (in hundredths)	2.75%	2.75%

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION Reconciliation of cash and cash equivalents (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Supplemental Cash Flow Elements [Abstract]
Cash and Cash Equivalents, at Carrying Value	$ 2,052	$ 1,756
Restricted Cash and Cash Equivalents, Current	0	9
Restricted Cash and Cash Equivalents, Noncurrent	16	2
Cash, Cash Equivalents and Restricted Cash Equivalents	$ 2,068	$ 1,767	$ 1,600	$ 917

Inventory (Detail)

Inventory (Detail) - USD ($) $ in Millions	12 Months Ended
Inventory (Detail) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Inventory, Net [Abstract]
Inventory, Finished Goods, Gross	$ 329	$ 342
Inventory, Work in Process and Raw Materials	448	415
Inventory, Net, Total	777	757
Inventory-related excess and obsolescence charges	$ 27	$ 29	$ 27

Property, Plant and Equipment,

Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 2,174	$ 2,034
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(1,524)	(1,439)
Property, plant and equipment, net	650	595
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	61	67
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	785	743
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 1,328	$ 1,224

PPE other (Details)

PPE other (Details) - USD ($) $ in Millions	12 Months Ended
PPE other (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Property, Plant and Equipment [Abstract]
Asset Impairment Charges	$ 0	$ 0	$ 0
Depreciation	$ 117	$ 104	$ 96

STANDARD WARRANTY (Details)

STANDARD WARRANTY (Details) - USD ($) $ in Millions	12 Months Ended
STANDARD WARRANTY (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance	$ 33	$ 38
Accruals for warranties	29	24
Settlements made during the period	(28)	(29)
Ending Balance	34	33
Standard Product Warranty Accrual, Balance Sheet Classification [Abstract]
Accruals for warranties due within one year	21	20
Accruals for warranties due after one year	13	13
Standard Product Warranty Accrual	$ (34)	$ (33)

COMMITMENTS AND CONTINGENCIES P

COMMITMENTS AND CONTINGENCIES Purchase commitments (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Unrecorded Unconditional Purchase Obligation, Description	Commitments to contract manufacturers and suppliers. We purchase components from a variety of suppliers and use several contract manufacturers to provide manufacturing services for our products. During the normal course of business, we issue purchase orders with estimates of our requirements several months ahead of the delivery dates. The reported open purchase orders represent a commitment to our suppliers. Our agreements with suppliers for common materials provide us the option to cancel, reschedule, and adjust our requirements based on business needs. We expect to fulfill most of our purchase commitments for inventory within one year or based on mutually agreed terms.
Unrecorded Unconditional Purchase Obligation	$ 444	$ 291
Other Commitments, Description	Other purchase commitments. Other purchase commitments relate to contracts with professional services suppliers. We can typically cancel these contracts within 90 days without penalties. For those contracts that are not cancellable within 90 days without penalties, we disclose the amounts we are obligated to pay to a supplier under each contract in that period before such contract can be canceled.
Other Commitment, to be Paid, Year One	$ 60	$ 52
Loss Contingency, Estimate of Possible Loss	6.6
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$ 2.5

STOCKHOLDERS' EQUITY New Stock

STOCKHOLDERS' EQUITY New Stock Repurchase Program (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Nov. 18, 2021	Nov. 18, 2020
Subsequent Event [Line Items]
Stock Repurchase Program, Authorized Amount			$ 750
Stockholders' Equity, Average Amount Outstanding	$ 77
Subsequent Event [Member]
Subsequent Event [Line Items]
Stock Repurchase Program, Authorized Amount		$ 1,200

STOCKHOLDERS' EQUITY (Stock Rep

STOCKHOLDERS' EQUITY (Stock Repurchase Program) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019	Nov. 18, 2020
Equity [Abstract]
Stock Repurchase Program, Authorized Amount				$ 750
Stockholders' Equity, Average Amount Outstanding	$ 77
Treasury Stock, Shares, Acquired	4,361,542	4,274,366	2,093,570
Treasury Stock, Value, Acquired, Cost Method	$ (673)	$ (410)	$ (160)

STOCKHOLDERS' EQUITY (Component

STOCKHOLDERS' EQUITY (Components of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation, net of tax (expense) of $(63) and $(63)	$ (20)	$ (10)
Unrealized losses on defined benefit plans, net of tax benefit of $84 and $139	(462)	(605)
Unrealized gains (losses) on derivative instruments, net of tax (expense) of $(11) and $(5)	40	16
Total accumulated other comprehensive loss	(442)	(599)
Accumulated other Comprehensive Income (Loss), Tax [Abstract]
Foreign currency translation, tax	63	63
Unrealized losses on defined benefit plans, tax	84	139
Unrealized gains (losses) on derivative instruments, tax	$ 11	$ 5

STOCKHOLDERS' EQUITY (Changes i

STOCKHOLDERS' EQUITY (Changes in Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 3,297	$ 3,004	$ 2,433
Other comprehensive income (loss)	157	(21)	(90)
Ending Balance	3,784	3,297	3,004
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(599)	(578)
Other comprehensive income (loss) before reclassifications	128	(102)
Amounts reclassified out of accumulated other comprehensive income	90	60
Tax (expense) benefit	(61)	21
Other comprehensive income (loss)	157	(21)
Ending Balance	(442)	(599)	(578)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(10)	(43)
Other comprehensive income (loss) before reclassifications	(10)	33
Amounts reclassified out of accumulated other comprehensive income	0	0
Tax (expense) benefit	0	0
Other comprehensive income (loss)	(10)	33
Ending Balance	(20)	(10)	(43)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(600)	(536)
Other comprehensive income (loss) before reclassifications	106	(155)
Amounts reclassified out of accumulated other comprehensive income	93	68
Tax (expense) benefit	(55)	23
Other comprehensive income (loss)	144	(64)
Ending Balance	(456)	(600)	(536)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(5)	4
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified out of accumulated other comprehensive income	(1)	(12)
Tax (expense) benefit	0	3
Other comprehensive income (loss)	(1)	(9)
Ending Balance	(6)	(5)	4
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	16	(3)
Other comprehensive income (loss) before reclassifications	32	20
Amounts reclassified out of accumulated other comprehensive income	(2)	4
Tax (expense) benefit	(6)	(5)
Other comprehensive income (loss)	24	19
Ending Balance	$ 40	$ 16	$ (3)

STOCKHOLDERS' EQUITY (Reclassif

STOCKHOLDERS' EQUITY (Reclassifications from Other Comprehensive Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of Goods and Services Sold	$ 1,872	$ 1,688	$ 1,769
Selling, General and Administrative Expense	1,195	1,097	1,155
Benefit (provision) for income tax	(116)	(134)	(94)
Net income	894	627	621
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Net income	(66)	(49)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Selling, General and Administrative Expense	2	(1)
Benefit (provision) for income tax	0	1
Net income	2	(3)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before taxes	(93)	(68)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before taxes	1	12
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Benefit (provision) for income tax	24	10
Net income	(68)	(46)
Income before taxes	(92)	(56)
Products
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of Goods and Services Sold	1,522	1,373	$ 1,439
Products \| Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of Goods and Services Sold	$ 0	$ (3)

SEGMENT INFORMATION (General) (

SEGMENT INFORMATION (General) (Details)	12 Months Ended
SEGMENT INFORMATION (General) (Details)	Oct. 31, 2021
Segment Reporting [Abstract]
Segment Reporting, Factors Used to Identify Entity's Reportable Segments	Our operating segments were determined based primarily on how the chief operating decision maker views and evaluates our operations. Segment operating results are regularly reviewed by the chief operating decision maker to make decisions about resources to be allocated to each segment and to assess performance. Other factors, including market separation and customer specific applications, go-to-market channels, products and services and manufacturing are considered in determining the formation of these operating segments.
Number of Reportable Segments	2
Segment Reporting, Additional Information about Entity's Reportable Segments	The Communications Solutions Group serves customers spanning the worldwide commercial communications and aerospace, defense and government end markets. The group's solutions consist of electronic design and test software, electronic measurement instruments, systems and related services. These solutions are used in the simulation, design, validation, manufacturing, installation and optimization of electronic equipment and networks.The Electronic Industrial Solutions Group provides test and measurement solutions and related services across a broad set of electronic industrial end markets, focusing on high-value applications in the automotive and energy industries and measurement solutions for consumer electronics, education, general electronics design and manufacturing, and semiconductor design and manufacturing. The group provides electronic measurement instruments, design and test software and systems and related services used in the simulation, design, validation, manufacturing, installation and optimization of electronic equipment, and automated test software that uses artificial intelligence and machine learning to automate test creation and test execution.

SEGMENT INFORMATION (Profitabil

SEGMENT INFORMATION (Profitability) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Segment Reporting Information [Line Items]
Total net revenue	$ 4,941	$ 4,221	$ 4,303
Income statement components (Loss) [Abstract]
Revenues	4,941	4,221	4,303
Operating Income (Loss)	(1,080)	(765)	(711)
Depreciation expense	117	104	96
CSG
Segment Reporting Information [Line Items]
Total net revenue	3,523	3,132	3,168
Income statement components (Loss) [Abstract]
Amortization of acquisition-related balances			9
Revenues	3,523	3,132	3,168
Operating Income (Loss)	(932)	(773)	(743)
Depreciation expense	91	81	74
EISG
Segment Reporting Information [Line Items]
Total net revenue	1,418	1,089	1,135
Income statement components (Loss) [Abstract]
Amortization of acquisition-related balances			0
Revenues	1,418	1,089	1,135
Operating Income (Loss)	(444)	(296)	(294)
Depreciation expense	26	23	22
Total Segments [Member]
Segment Reporting Information [Line Items]
Total net revenue	4,941	4,221	4,303
Income statement components (Loss) [Abstract]
Amortization of acquisition-related balances			9
Revenues			4,312
Operating Income (Loss)	(1,376)	(1,069)	(1,037)
Depreciation expense	$ 117	$ 104	96
Operating Segments [Member] \| CSG
Income statement components (Loss) [Abstract]
Revenues			3,177
Operating Segments [Member] \| EISG
Income statement components (Loss) [Abstract]
Revenues			$ 1,135

SEGMENT INFORMATION (Reconcilia

SEGMENT INFORMATION (Reconciliation of Reportable Results) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Reconcilitation between statement results and enterprise results [Abstract]
Total reportable segments' income from operations	$ (1,080)	$ (765)	$ (711)
Share-based compensation	(104)	(93)	(82)
Amortization of acquisition-related balances	(174)	(224)	(224)
Acquisition and integration costs	(9)	(13)	(9)
Gain on insurance settlement	0	(32)	0
Restructuring and other	(9)	(6)	(11)
Income from operations, as reported	1,080	765	711
Interest income	3	11	23
Interest expense	(79)	(78)	(80)
Other income (expense), net	6	63	61
Income before taxes, as reported	1,010	761	715
Segment assets and capital expenditures [Abstract]
Total reportable segments' assets	5,645	5,166
Capital expenditures	$ 174	117	120
Revenue Benchmark [Member]
Reconcilitation between statement results and enterprise results [Abstract]
Concentration Risk, Customer	No customer represented 10 percent or more of our total revenue
CSG
Reconcilitation between statement results and enterprise results [Abstract]
Total reportable segments' income from operations	$ (932)	(773)	(743)
Income from operations, as reported	932	773	743
Segment assets and capital expenditures [Abstract]
Total reportable segments' assets	4,122	3,832
Capital expenditures	130	90
EISG
Reconcilitation between statement results and enterprise results [Abstract]
Total reportable segments' income from operations	(444)	(296)	(294)
Income from operations, as reported	444	296	294
Segment assets and capital expenditures [Abstract]
Total reportable segments' assets	1,523	1,334
Capital expenditures	44	27
Total Segments [Member]
Reconcilitation between statement results and enterprise results [Abstract]
Total reportable segments' income from operations	(1,376)	(1,069)	(1,037)
Income from operations, as reported	1,376	1,069	$ 1,037
Segment assets and capital expenditures [Abstract]
Total reportable segments' assets	5,645	5,166
Capital expenditures	$ 174	$ 117

SEGMENT INFORMATION (Segment As

SEGMENT INFORMATION (Segment Assets to Total Assets Recon) (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Segment Reporting [Abstract]
Total reportable segments' assets	$ 5,645	$ 5,166
Cash and cash equivalents	2,052	1,756
Long-term investments	70	61
Long-term deferred tax assets	711	740
Finite-Lived Intangible Assets, Accumulated Amortization	(1,146)	(972)
Pension and other assets	449	467
Total assets	$ 7,781	$ 7,218

SEGMENT INFORMATION (Entity-Wid

SEGMENT INFORMATION (Entity-Wide Disclosures on Geographic Areas) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	$ 4,941	$ 4,221	$ 4,303
Long-lived assets:	1,249	1,170
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	1,803	1,523	1,584
Long-lived assets:	533	387
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	927	863	822
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets:	294	272
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets:	116	179
Rest of the World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	2,211	1,835	$ 1,897
Long-lived assets:	$ 306	$ 332

SCHEDULE II - VALUATION AND Q_2

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 238	$ 240	$ 79
Additions Charged to Expenses or Other Accounts*	11	3	169
Deductions Credited to Expenses or Other Accounts**	(18)	(5)	(8)
Balance at End of Period	$ 231	$ 238	$ 240