$KLAC
KLA CORP Stock $klac

$klac Overview Financials Valuation SEC Filings Company Website

2023 Q3 Form 10-K Financial Statement

#000031920123000031 Filed on August 04, 2023

Income Statement

Concept	2023 Q3	2023 Q2	2023
Revenue	$2.397B	$2.355B	$10.50B
YoY Change	-12.02%	-5.29%	13.94%
Cost Of Revenue	$946.9M	$914.9M	$4.028B
YoY Change	-9.06%	-1.99%	12.13%
Gross Profit	$1.450B	$1.440B	$6.468B
YoY Change	-13.85%	-7.28%	15.1%
Gross Profit Margin	60.5%	61.15%	61.62%
Selling, General & Admin	$239.6M	$228.9M	$880.6M
YoY Change	-5.64%	5.65%	2.39%
% of Gross Profit	16.53%	15.89%	13.62%
Research & Development	$311.2M	$314.4M	$1.280B
YoY Change	-2.29%	5.91%	15.8%
% of Gross Profit	21.46%	21.83%	19.79%
Depreciation & Amortization	$102.4M	$104.8M	$415.1M
YoY Change	0.46%	3.93%	14.25%
% of Gross Profit	7.06%	7.28%	6.42%
Operating Expenses	$550.9M	$543.3M	$2.160B
YoY Change	-3.78%	1.8%	9.93%
Operating Profit	$899.2M	$896.9M	$4.307B
YoY Change	-19.04%	-12.03%	17.87%
Interest Expense	$74.23M	-$73.49M	-$296.9M
YoY Change	-0.22%	66.28%	-285.2%
% of Operating Profit	8.26%	-8.19%	-6.89%
Other Income/Expense, Net	$26.74M	$24.78M	$104.7M
YoY Change	-43.12%	27.84%	-2374.05%
Pretax Income	$851.7M	$775.5M	$3.789B
YoY Change	-20.4%	-18.34%	8.6%
Income Tax	$110.3M	$90.85M	$401.8M
% Of Pretax Income	12.95%	11.72%	10.6%
Net Earnings	$741.4M	$684.7M	$3.387B
YoY Change	-27.74%	-14.99%	1.97%
Net Earnings / Revenue	30.93%	29.07%	32.27%
Basic Earnings Per Share	$5.43		$24.28
Diluted Earnings Per Share	$5.41	$4.97	$24.15
COMMON SHARES
Basic Shares Outstanding	136.7M shares	137.2M shares	139.5M shares
Diluted Shares Outstanding	137.1M shares		140.2M shares

Balance Sheet

Concept	2023 Q3	2023 Q2	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.349B	$3.243B	$3.243B
YoY Change	13.39%	19.76%	19.76%
Cash & Equivalents	$1.712B	$1.928B	$1.928B
Short-Term Investments	$1.638B	$1.315B	$1.315B
Other Short-Term Assets	$443.0M	$498.7M	$498.7M
YoY Change	4.3%	-0.68%	67.54%
Inventory	$3.008B	$2.877B	$2.877B
Prepaid Expenses	$120.6M	$121.2M
Receivables	$1.631B	$1.753B	$1.753B
Other Receivables	$33.00M	$0.00	$0.00
Total Short-Term Assets	$8.431B	$8.372B	$8.372B
YoY Change	10.29%	16.78%	16.78%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.060B	$1.032B	$1.032B
YoY Change	16.09%	21.4%	5.68%
Goodwill	$2.279B	$2.279B
YoY Change	0.0%	-1.78%
Intangibles	$872.0M	$935.3M
YoY Change	-22.93%	-21.69%
Long-Term Investments
YoY Change
Other Assets	$624.8M	$1.454B	$1.454B
YoY Change	26.48%	200.11%	55.16%
Total Long-Term Assets	$5.706B	$5.700B	$5.700B
YoY Change	4.13%	5.01%	5.01%
TOTAL ASSETS
Total Short-Term Assets	$8.431B	$8.372B	$8.372B
Total Long-Term Assets	$5.706B	$5.700B	$5.700B
Total Assets	$14.14B	$14.07B	$14.07B
YoY Change	7.72%	11.71%	11.71%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$363.7M	$371.0M	$371.0M
YoY Change	-24.19%	-16.31%	-16.31%
Accrued Expenses	$1.188B	$1.151B	$1.151B
YoY Change	19.02%	27.52%	27.52%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$0.00
YoY Change
Total Short-Term Liabilities	$3.818B	$3.743B	$3.743B
YoY Change	21.61%	30.36%	30.36%
LONG-TERM LIABILITIES
Long-Term Debt	$5.892B	$5.891B	$5.891B
YoY Change	-6.67%	-11.56%	-11.56%
Other Long-Term Liabilities	$739.1M	$989.7M	$989.7M
YoY Change	-16.18%	12.13%	-1.74%
Total Long-Term Liabilities	$739.1M	$6.880B	$6.880B
YoY Change	-16.18%	679.53%	-10.27%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.818B	$3.743B	$3.743B
Total Long-Term Liabilities	$739.1M	$6.880B	$6.880B
Total Liabilities	$11.15B	$11.15B	$11.15B
YoY Change	1.13%	-0.41%	-0.39%
SHAREHOLDERS EQUITY
Retained Earnings	$966.2M	$848.4M
YoY Change	-13.65%	131.25%
Common Stock		$2.108B
YoY Change		98.47%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.990B	$2.920B	$2.920B
YoY Change
Total Liabilities & Shareholders Equity	$14.14B	$14.07B	$14.07B
YoY Change	7.72%	11.71%	11.71%

Cashflow Statement

Concept	2023 Q3	2023 Q2	2023
OPERATING ACTIVITIES
Net Income	$741.4M	$684.7M	$3.387B
YoY Change	-27.74%	-14.99%	1.97%
Depreciation, Depletion And Amortization	$102.4M	$104.8M	$415.1M
YoY Change	0.46%	3.93%	14.25%
Cash From Operating Activities	$883.7M	$959.1M	$3.670B
YoY Change	-12.63%	17.08%	10.78%
INVESTING ACTIVITIES
Capital Expenditures	$68.05M	$78.68M	$341.6M
YoY Change	-19.33%	-207.55%	11.15%
Acquisitions	$0.00		$27.14M
YoY Change	-100.0%		-94.33%
Other Investing Activities	-$323.6M	$4.199M	-$141.0M
YoY Change	-1148.03%	-91.21%	-75.23%
Cash From Investing Activities	-$391.7M	-$74.48M	-$482.6M
YoY Change	632.44%	193.31%	-44.94%
FINANCING ACTIVITIES
Cash Dividend Paid	$181.5M		$732.6M
YoY Change	-3.46%		14.74%
Common Stock Issuance & Retirement, Net			-$1.187B
YoY Change			-130.79%
Debt Paid & Issued, Net	$0.00		$1.087B
YoY Change	-100.0%		75.36%
Cash From Financing Activities	-$705.2M	-511.3M	-2.830B
YoY Change	-0.08%	-15.31%	25.4%
NET CHANGE
Cash From Operating Activities	$883.7M	959.1M	3.670B
Cash From Investing Activities	-$391.7M	-74.48M	-482.6M
Cash From Financing Activities	-$705.2M	-511.3M	-2.830B
Net Change In Cash	-$216.3M	373.3M	356.9M
YoY Change	-192.29%	96.37%	137.49%
FREE CASH FLOW
Cash From Operating Activities	$883.7M	$959.1M	$3.670B
Capital Expenditures	$68.05M	$78.68M	$341.6M
Free Cash Flow	$815.7M	$880.4M	$3.328B
YoY Change	-12.03%	-1.34%	10.74%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000319201
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CY2023Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2023Q2	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2022Q2	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2022Q2	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent
CY2023Q2	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent
CY2022Q2	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q2	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Interest Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditInterestCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2023#CostOfRevenue http://fasb.org/us-gaap/2023#ResearchAndDevelopmentExpense http://fasb.org/us-gaap/2023#SellingGeneralAndAdministrativeExpense
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CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Interest Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditInterestCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2023#CostOfRevenue http://fasb.org/us-gaap/2023#ResearchAndDevelopmentExpense http://fasb.org/us-gaap/2023#SellingGeneralAndAdministrativeExpense
CY2023	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Excluding Service Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpense
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Excluding Service Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpense
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Excluding Service Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpense
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-06-30
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--06-30
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2022Q4	dei	Entity Public Float EntityPublicFloat	52140000000	usd
CY2023Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	136720074	shares
CY2023	us-gaap	Restructuring Charges RestructuringCharges	44000000	usd
CY2022	us-gaap	Restructuring Charges RestructuringCharges	1000000	usd
CY2023	dei	Auditor Firm AuditorFirmId	238
CY2022Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1584908000	usd
CY2022Q2	klac	Debt Securities Available For Sale And Equity Securities Fair Value DebtSecuritiesAvailableForSaleAndEquitySecuritiesFairValue	1123100000	usd
CY2022Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1811877000	usd
CY2022Q2	us-gaap	Inventory Net InventoryNet	2146889000	usd
CY2022Q2	us-gaap	Other Assets Current OtherAssetsCurrent	502137000	usd
CY2022Q2	us-gaap	Assets Current AssetsCurrent	7168911000	usd
CY2022Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	849929000	usd
CY2022Q2	us-gaap	Goodwill Goodwill	2320049000	usd
CY2022Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	579173000	usd
CY2022Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1194414000	usd
CY2022Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	484612000	usd
CY2022Q2	us-gaap	Assets Assets	12597088000	usd
CY2022Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	443338000	usd
CY2022Q2	klac	Contract With Customer Liability Current System Revenue ContractWithCustomerLiabilityCurrentSystemRevenue	500969000	usd
CY2022Q2	klac	Contract With Customer Liability Current Service Revenue ContractWithCustomerLiabilityCurrentServiceRevenue	381737000	usd
CY2023Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2303490000	usd
CY2023Q2	us-gaap	Liabilities Current LiabilitiesCurrent	3742842000	usd
CY2023Q2	us-gaap	Long Term Debt LongTermDebt	5890736000	usd
CY2023Q2	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	529287000	usd
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CY2023Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
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CY2023Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2023Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	279995000	shares
CY2023Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	136750000	shares
CY2023Q2	us-gaap	Common Stock Value CommonStockValue	137000	usd
CY2023Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2107526000	usd
CY2023Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	848431000	usd
CY2023Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-36341000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	2919753000	usd
CY2023Q2	us-gaap	Minority Interest MinorityInterest	0	usd
CY2022Q2	us-gaap	Minority Interest MinorityInterest	-2261000	usd
CY2023Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2919753000	usd
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CY2023Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14072357000	usd
CY2022Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12597088000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	10496056000	usd
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CY2021	us-gaap	Cost Of Revenue CostOfRevenue	2772165000	usd
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CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	111836000	usd
CY2023	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	29687000	usd
CY2022	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	4422000	usd
CY2023	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-298145000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-329501000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-44445000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	0	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	0	usd
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	26719000	usd
CY2023	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	0	usd
CY2022	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	-82799000	usd
CY2021	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	0	usd
CY2023	klac	Increase Decrease In Accounts Receivable Excluding Acquisition Related IncreaseDecreaseInAccountsReceivableExcludingAcquisitionRelated	48534000	usd
CY2022	klac	Increase Decrease In Accounts Receivable Excluding Acquisition Related IncreaseDecreaseInAccountsReceivableExcludingAcquisitionRelated	510326000	usd
CY2021	klac	Increase Decrease In Accounts Receivable Excluding Acquisition Related IncreaseDecreaseInAccountsReceivableExcludingAcquisitionRelated	203155000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	749047000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	567003000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	270100000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	121018000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	217070000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	96218000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-144661000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	101632000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	79366000	usd
CY2023	klac	Increase Decrease In Contract With Customer Liability System Revenue IncreaseDecreaseInContractWithCustomerLiabilitySystemRevenue	150750000	usd
CY2022	klac	Increase Decrease In Contract With Customer Liability System Revenue IncreaseDecreaseInContractWithCustomerLiabilitySystemRevenue	213368000	usd
CY2021	klac	Increase Decrease In Contract With Customer Liability System Revenue IncreaseDecreaseInContractWithCustomerLiabilitySystemRevenue	-44674000	usd
CY2023	klac	Increase Decrease In Contract With Customer Liability Service Revenue IncreaseDecreaseInContractWithCustomerLiabilityServiceRevenue	88223000	usd
CY2022	klac	Increase Decrease In Contract With Customer Liability Service Revenue IncreaseDecreaseInContractWithCustomerLiabilityServiceRevenue	129718000	usd
CY2021	klac	Increase Decrease In Contract With Customer Liability Service Revenue IncreaseDecreaseInContractWithCustomerLiabilityServiceRevenue	45845000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	834400000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	544270000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	245623000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3669805000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3312702000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2185026000	usd
CY2023	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	usd
CY2022	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	27658000	usd
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1855000	usd
CY2023	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	75358000	usd
CY2022	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	usd
CY2021	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	16833000	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	27144000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	479113000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	341591000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	307320000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	231628000	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1441933000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	987660000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1018744000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	124620000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	113538000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	145533000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1134182000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	760548000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	581679000	usd
CY2023	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	96611000	usd
CY2022	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	121254000	usd
CY2023	klac	Proceeds From Sale Of Trading Securities ProceedsFromSaleOfTradingSecurities	-89528000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	614000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-876458000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-500404000	usd
CY2023	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6515000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	usd
CY2023	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	0	usd
CY2022	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	2967409000	usd
CY2021	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	40343000	usd
CY2023	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	300000000	usd
CY2022	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	875000000	usd
CY2021	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1087250000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	620000000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	70000000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1311864000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3967806000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	938607000	usd
CY2023	klac	Payments For Forward Contract For Accelerated Share Repurchases PaymentsForForwardContractForAcceleratedShareRepurchases	0	usd
CY2022	klac	Payments For Forward Contract For Accelerated Share Repurchases PaymentsForForwardContractForAcceleratedShareRepurchases	900000000	usd
CY2021	klac	Payments For Forward Contract For Accelerated Share Repurchases PaymentsForForwardContractForAcceleratedShareRepurchases	0	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	732556000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	638528000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	559353000	usd
CY2023	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	usd
CY2022	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	602000	usd
CY2021	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	124847000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	113014000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	86098000	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	94806000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	84371000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	56362000	usd
CY2023	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	17850000	usd
CY2022	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1121000	usd
CY2021	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
CY2023	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	4295000	usd
CY2022	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	usd
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2830289000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2257005000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1497881000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-13988000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-28941000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13460000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	342957000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	150298000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	200201000	usd
CY2022Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1584908000	usd
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1434610000	usd
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1234409000	usd
CY2023Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1927865000	usd
CY2022Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1584908000	usd
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1434610000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	495101000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	464526000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	326002000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	223955000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	154673000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	154196000	usd
CY2023	klac	Noncash Or Part Noncash Acquisition Contingent Consideration Payable NoncashOrPartNoncashAcquisitionContingentConsiderationPayable	-1878000	usd
CY2022	klac	Noncash Or Part Noncash Acquisition Contingent Consideration Payable NoncashOrPartNoncashAcquisitionContingentConsiderationPayable	16281000	usd
CY2021	klac	Noncash Or Part Noncash Acquisition Contingent Consideration Payable NoncashOrPartNoncashAcquisitionContingentConsiderationPayable	-7448000	usd
CY2023	klac	Noncash Transaction Increase Decrease In Dividends Payable NoncashTransactionIncreaseDecreaseInDividendsPayable	7903000	usd
CY2022	klac	Noncash Transaction Increase Decrease In Dividends Payable NoncashTransactionIncreaseDecreaseInDividendsPayable	7028000	usd
CY2021	klac	Noncash Transaction Increase Decrease In Dividends Payable NoncashTransactionIncreaseDecreaseInDividendsPayable	6285000	usd
CY2023	klac	Stock Repurchase Program Unsettled Common Stock Repurchase StockRepurchaseProgramUnsettledCommonStockRepurchase	11000000	usd
CY2022	klac	Stock Repurchase Program Unsettled Common Stock Repurchase StockRepurchaseProgramUnsettledCommonStockRepurchase	0	usd
CY2021	klac	Stock Repurchase Program Unsettled Common Stock Repurchase StockRepurchaseProgramUnsettledCommonStockRepurchase	6000000	usd
CY2023	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	18445000	usd
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	19595000	usd
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	30615000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Management Estimates.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> The preparation of the Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions in applying our accounting policies that affect the reported amounts of assets and liabilities (and related disclosure of contingent assets and liabilities) at the date of the Consolidated Financial Statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.</span>
CY2022	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	usd
CY2023	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	usd
CY2021	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	usd
CY2023	us-gaap	Depreciation Depreciation	154200000	usd
CY2022	us-gaap	Depreciation Depreciation	122200000	usd
CY2021	us-gaap	Depreciation Depreciation	111100000	usd
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:9pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Concentration of Credit Risk.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Financial instruments that potentially subject us to significant concentrations of credit risk consist primarily of cash equivalents, short-term marketable securities, trade accounts receivable and derivative financial instruments used in hedging activities. We invest in a variety of financial instruments, such as, but not limited to, certificates of deposit, corporate debt and municipal securities, U.S. Treasury and Government agency securities, and equity securities and, by policy, we limit the amount of credit exposure with any one financial institution or commercial issuer. We have not experienced any material credit losses on our investments.</span></div><div style="margin-top:9pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">A majority of our accounts receivable are derived from sales to large multinational semiconductor and electronics manufacturers located throughout the world, with a majority located in Asia. In recent years, our customer base has become increasingly concentrated due to corporate consolidations, acquisitions and business closures, and to the extent that these customers experience liquidity issues in the future, we may be required to reserve for potential credit losses with respect to trade receivables. We perform ongoing credit evaluations of our customers’ financial condition and generally require little to no collateral to secure accounts receivable. We maintain an allowance for potential credit losses based upon expected collectability risk of all accounts receivable. In addition, we may utilize letters of credit (“LC”) or non-recourse factoring to mitigate credit risk when considered appropriate.</span></div><div style="margin-top:9pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We are exposed to credit loss in the event of non-performance by counterparties on the foreign exchange contracts that we use in hedging activities and in certain factoring transactions. These counterparties are large international financial institutions, and, to date, no such counterparty has failed to meet its financial obligations to us under such contracts.</span></div>
CY2023	klac	Deferred Compensation Arrangement With Individual Optional Payout Period DeferredCompensationArrangementWithIndividualOptionalPayoutPeriod	P15Y
CY2023Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1753361000	usd
CY2022Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1811877000	usd
CY2021Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1305479000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-58516000	usd
CY2023	klac	Increase Decrease In Accounts Receivable Percentage IncreaseDecreaseInAccountsReceivablePercentage	-0.03
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	506398000	usd
CY2022	klac	Increase Decrease In Accounts Receivable Percentage IncreaseDecreaseInAccountsReceivablePercentage	0.39
CY2023Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	117137000	usd
CY2022Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	114747000	usd
CY2021Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	91052000	usd
CY2023	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	2390000	usd
CY2023	klac	Increase Decrease In Contract With Customer Asset Percentage IncreaseDecreaseInContractWithCustomerAssetPercentage	0.02
CY2022	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	23695000	usd
CY2022	klac	Increase Decrease In Contract With Customer Asset Percentage IncreaseDecreaseInContractWithCustomerAssetPercentage	0.26
CY2023Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1245007000	usd
CY2022Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1007324000	usd
CY2023	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	237683000	usd
CY2023	klac	Increase Decrease In Contract With Customer Liability Percentage IncreaseDecreaseInContractWithCustomerLiabilityPercentage	0.24
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	339621000	usd
CY2022	klac	Increase Decrease In Contract With Customer Liability Percentage IncreaseDecreaseInContractWithCustomerLiabilityPercentage	0.51
CY2023	klac	Revenue Remainder Payable Acceptance Period RevenueRemainderPayableAcceptancePeriod	P30D
CY2023	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Modification Of Contract ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract	101000000	usd
CY2023	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	98300000	usd
CY2023	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	819000000	usd
CY2022	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	555400000	usd
CY2023Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	11400000000	usd
CY2023Q2	klac	Contract With Customer Deposits ContractWithCustomerDeposits	925900000	usd
CY2023Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1250000000	usd
CY2023Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2023Q2	us-gaap	Cash Cash	298600000	usd
CY2023Q2	klac	Time Deposit Fair Value TimeDepositFairValue	471400000	usd
CY2023Q2	klac	Time Deposits Cash Equivalents Fair Value TimeDepositsCashEquivalentsFairValue	356700000	usd
CY2022Q2	us-gaap	Cash Cash	472800000	usd
CY2022Q2	klac	Time Deposit Fair Value TimeDepositFairValue	274900000	usd
CY2022Q2	klac	Time Deposits Cash Equivalents Fair Value TimeDepositsCashEquivalentsFairValue	140700000	usd
CY2023Q2	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1786993000	usd
CY2022Q2	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1832508000	usd
CY2023Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	33632000	usd
CY2022Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	20631000	usd
CY2023Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1753361000	usd
CY2022Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1811877000	usd
CY2023Q2	klac	Other Inventories Spare Parts Net Of Reserves OtherInventoriesSparePartsNetOfReserves	524096000	usd
CY2022Q2	klac	Other Inventories Spare Parts Net Of Reserves OtherInventoriesSparePartsNetOfReserves	402121000	usd
CY2023Q2	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	1559202000	usd
CY2022Q2	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	1042916000	usd
CY2023Q2	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	578864000	usd
CY2022Q2	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	451782000	usd
CY2023Q2	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	214622000	usd
CY2022Q2	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	250070000	usd
CY2023Q2	us-gaap	Inventory Net InventoryNet	2876784000	usd
CY2022Q2	us-gaap	Inventory Net InventoryNet	2146889000	usd
CY2023Q2	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	133067000	usd
CY2022Q2	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	124487000	usd
CY2023Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	117137000	usd
CY2022Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	114747000	usd
CY2023Q2	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	121204000	usd
CY2022Q2	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	108942000	usd
CY2023Q2	us-gaap	Prepaid Taxes PrepaidTaxes	64901000	usd
CY2022Q2	us-gaap	Prepaid Taxes PrepaidTaxes	89713000	usd
CY2023Q2	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	62419000	usd
CY2022Q2	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	64248000	usd
CY2023Q2	us-gaap	Other Assets Current OtherAssetsCurrent	498728000	usd
CY2022Q2	us-gaap	Other Assets Current OtherAssetsCurrent	502137000	usd
CY2023Q2	us-gaap	Land Land	72287000	usd
CY2022Q2	us-gaap	Land Land	67846000	usd
CY2023Q2	klac	Buildings And Leasehold Improvements Gross BuildingsAndLeaseholdImprovementsGross	825975000	usd
CY2022Q2	klac	Buildings And Leasehold Improvements Gross BuildingsAndLeaseholdImprovementsGross	712751000	usd
CY2023Q2	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	1016713000	usd
CY2022Q2	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	819191000	usd
CY2023Q2	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	58036000	usd
CY2022Q2	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	44957000	usd
CY2023Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	168817000	usd
CY2022Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	110079000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2141828000	usd
CY2022Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1754824000	usd
CY2023Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1109987000	usd
CY2022Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	904895000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1031841000	usd
CY2022Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	849929000	usd
CY2023Q2	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	256846000	usd
CY2022Q2	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	224188000	usd
CY2023Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	208706000	usd
CY2022Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	126444000	usd
CY2023Q2	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	171910000	usd
CY2022Q2	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	133980000	usd
CY2023Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	637462000	usd
CY2022Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	484612000	usd
CY2023Q2	klac	Contract With Customer Deposits Current ContractWithCustomerDepositsCurrent	769000000	usd
CY2022Q2	klac	Contract With Customer Deposits Current ContractWithCustomerDepositsCurrent	394016000	usd
CY2023Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	370536000	usd
CY2022Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	351924000	usd
CY2023Q2	us-gaap	Defined Benefit Pension Plan Liabilities Current DefinedBenefitPensionPlanLiabilitiesCurrent	258223000	usd
CY2022Q2	us-gaap	Defined Benefit Pension Plan Liabilities Current DefinedBenefitPensionPlanLiabilitiesCurrent	225867000	usd
CY2023Q2	us-gaap	Taxes Payable Current TaxesPayableCurrent	383012000	usd
CY2022Q2	us-gaap	Taxes Payable Current TaxesPayableCurrent	126964000	usd
CY2023Q2	us-gaap	Interest And Dividends Payable Current InterestAndDividendsPayableCurrent	105270000	usd
CY2022Q2	us-gaap	Interest And Dividends Payable Current InterestAndDividendsPayableCurrent	39683000	usd
CY2023Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	34042000	usd
CY2022Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	32218000	usd
CY2023Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	383407000	usd
CY2022Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	374367000	usd
CY2023Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2303490000	usd
CY2022Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1545039000	usd
CY2023Q2	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	322113000	usd
CY2022Q2	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	367052000	usd
CY2023Q2	klac	Contract With Customer Deposits Noncurrent ContractWithCustomerDepositsNoncurrent	156874000	usd
CY2022Q2	klac	Contract With Customer Deposits Noncurrent ContractWithCustomerDepositsNoncurrent	204914000	usd
CY2023Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	138354000	usd
CY2022Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	81369000	usd
CY2023Q2	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	63672000	usd
CY2022Q2	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	78525000	usd
CY2023Q2	klac	Other Liabilities Miscellaneous Noncurrent OtherLiabilitiesMiscellaneousNoncurrent	132045000	usd
CY2022Q2	klac	Other Liabilities Miscellaneous Noncurrent OtherLiabilitiesMiscellaneousNoncurrent	150782000	usd
CY2023Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	813058000	usd
CY2022Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	882642000	usd
CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	74095000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	8695000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	8929000	usd
CY2023	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-233000	usd
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3925000	usd
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-5005000	usd
CY2023	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-986000	usd
CY2022	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-306000	usd
CY2021	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	253000	usd
CY2023	klac	Other Nonoperating Income Expense Miscellaneous OtherNonoperatingIncomeExpenseMiscellaneous	31844000	usd
CY2022	klac	Other Nonoperating Income Expense Miscellaneous OtherNonoperatingIncomeExpenseMiscellaneous	-9069000	usd
CY2021	klac	Other Nonoperating Income Expense Miscellaneous OtherNonoperatingIncomeExpenseMiscellaneous	25125000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	104720000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4605000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	29302000	usd
CY2023Q2	klac	Money Market Funds And Other MoneyMarketFundsAndOther	1257223000	usd
CY2023Q2	klac	Money Market Funds And Other MoneyMarketFundsAndOther	1257223000	usd
CY2023Q2	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	3211000	usd
CY2023Q2	klac	Equity Securities Fvni Accumulated Gross Unrealized Gain EquitySecuritiesFVNIAccumulatedGrossUnrealizedGain	14948000	usd
CY2023Q2	klac	Equity Securities Fvni Accumulated Gross Unrealized Loss EquitySecuritiesFVNIAccumulatedGrossUnrealizedLoss	0	usd
CY2023Q2	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	18159000	usd
CY2023Q2	klac	Marketable Securities Excluding Time Deposits Amortized Cost MarketableSecuritiesExcludingTimeDepositsAmortizedCost	2474443000	usd
CY2023Q2	klac	Marketable Securities Excluding Time Deposit Gross Unrealized Gains MarketableSecuritiesExcludingTimeDepositGrossUnrealizedGains	15014000	usd
CY2023Q2	klac	Marketable Securities Excluding Time Deposits Gross Unrealized Losses MarketableSecuritiesExcludingTimeDepositsGrossUnrealizedLosses	16350000	usd
CY2023Q2	klac	Marketable Securities Excluding Time Deposits Fair Value MarketableSecuritiesExcludingTimeDepositsFairValue	2473107000	usd
CY2023Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	471439000	usd
CY2023Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	471439000	usd
CY2023Q2	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	1629248000	usd
CY2023Q2	klac	Cash Equivalents Gross Unrealized Gains CashEquivalentsGrossUnrealizedGains	4000	usd
CY2023Q2	klac	Cash Equivalents Gross Unrealized Losses CashEquivalentsGrossUnrealizedLosses	0	usd
CY2023Q2	klac	Cash Equivalents Fair Value Disclosure CashEquivalentsFairValueDisclosure	1629252000	usd
CY2023Q2	klac	Debt Securities Available For Sale And Equity Securities Amortized Cost DebtSecuritiesAvailableForSaleAndEquitySecuritiesAmortizedCost	1316634000	usd
CY2023Q2	klac	Debt Securities Available For Sale And Equity Securities Accumulated Gross Unrealized Gain DebtSecuritiesAvailableForSaleAndEquitySecuritiesAccumulatedGrossUnrealizedGain	15010000	usd
CY2023Q2	klac	Debt Securities Available For Sale And Equity Securities Accumulated Gross Unrealized Loss DebtSecuritiesAvailableForSaleAndEquitySecuritiesAccumulatedGrossUnrealizedLoss	16350000	usd
CY2023Q2	klac	Debt Securities Available For Sale And Equity Securities Fair Value DebtSecuritiesAvailableForSaleAndEquitySecuritiesFairValue	1315294000	usd
CY2022Q2	klac	Money Market Funds And Other MoneyMarketFundsAndOther	948027000	usd
CY2022Q2	klac	Money Market Funds And Other MoneyMarketFundsAndOther	948027000	usd
CY2022Q2	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	3211000	usd
CY2022Q2	klac	Equity Securities Fvni Accumulated Gross Unrealized Gain EquitySecuritiesFVNIAccumulatedGrossUnrealizedGain	7824000	usd
CY2022Q2	klac	Equity Securities Fvni Accumulated Gross Unrealized Loss EquitySecuritiesFVNIAccumulatedGrossUnrealizedLoss	0	usd
CY2022Q2	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	11035000	usd
CY2022Q2	klac	Marketable Securities Excluding Time Deposits Amortized Cost MarketableSecuritiesExcludingTimeDepositsAmortizedCost	1972277000	usd
CY2022Q2	klac	Marketable Securities Excluding Time Deposit Gross Unrealized Gains MarketableSecuritiesExcludingTimeDepositGrossUnrealizedGains	7873000	usd
CY2022Q2	klac	Marketable Securities Excluding Time Deposits Gross Unrealized Losses MarketableSecuritiesExcludingTimeDepositsGrossUnrealizedLosses	19778000	usd
CY2022Q2	klac	Marketable Securities Excluding Time Deposits Fair Value MarketableSecuritiesExcludingTimeDepositsFairValue	1960372000	usd
CY2022Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	274873000	usd
CY2022Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	274873000	usd
CY2022Q2	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	1112146000	usd
CY2022Q2	klac	Cash Equivalents Gross Unrealized Gains CashEquivalentsGrossUnrealizedGains	0	usd
CY2022Q2	klac	Cash Equivalents Gross Unrealized Losses CashEquivalentsGrossUnrealizedLosses	1000	usd
CY2022Q2	klac	Cash Equivalents Fair Value Disclosure CashEquivalentsFairValueDisclosure	1112145000	usd
CY2022Q2	klac	Debt Securities Available For Sale And Equity Securities Amortized Cost DebtSecuritiesAvailableForSaleAndEquitySecuritiesAmortizedCost	1135004000	usd
CY2022Q2	klac	Debt Securities Available For Sale And Equity Securities Accumulated Gross Unrealized Gain DebtSecuritiesAvailableForSaleAndEquitySecuritiesAccumulatedGrossUnrealizedGain	7873000	usd
CY2022Q2	klac	Debt Securities Available For Sale And Equity Securities Accumulated Gross Unrealized Loss DebtSecuritiesAvailableForSaleAndEquitySecuritiesAccumulatedGrossUnrealizedLoss	19777000	usd
CY2022Q2	klac	Debt Securities Available For Sale And Equity Securities Fair Value DebtSecuritiesAvailableForSaleAndEquitySecuritiesFairValue	1123100000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	494	investment
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	688793000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	7017000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	398397000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	9333000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1087190000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	16350000	usd
CY2022Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	917488000	usd
CY2022Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	19778000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	704633000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	713189000	usd
CY2023Q2	klac	Debt Securities Availableforsale Maturity Allocatedand Single Maturity Dateafter One Through Three Years Amortized Cost DebtSecuritiesAvailableforsaleMaturityAllocatedandSingleMaturityDateafterOneThroughThreeYearsAmortizedCost	612001000	usd
CY2023Q2	klac	Debt Securities Availableforsale Maturity Allocatedand Single Maturity Dateafter One Through Three Years Fair Value DebtSecuritiesAvailableforsaleMaturityAllocatedandSingleMaturityDateafterOneThroughThreeYearsFairValue	602105000	usd
CY2023Q2	klac	Debt Securities Available For Sale And Equity Securities Amortized Cost DebtSecuritiesAvailableForSaleAndEquitySecuritiesAmortizedCost	1316634000	usd
CY2023Q2	klac	Debt Securities Available For Sale And Equity Securities Fair Value DebtSecuritiesAvailableForSaleAndEquitySecuritiesFairValue	1315294000	usd
CY2023Q2	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	6400000	usd
CY2023	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	usd
CY2022	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	reportingunit
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	5	segment
CY2021Q2	us-gaap	Goodwill Goodwill	2011172000	usd
CY2023Q2	klac	Debt Long Term And Short Term Combined Amount Gross DebtLongTermAndShortTermCombinedAmountGross	5950000000	usd
CY2022Q2	klac	Debt Long Term And Short Term Combined Amount Gross DebtLongTermAndShortTermCombinedAmountGross	6725000000	usd
CY2023Q2	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	17848000	usd
CY2022Q2	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	19304000	usd
CY2023Q2	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	41416000	usd
CY2022Q2	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	44978000	usd
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	308952000	usd
CY2022	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-75000	usd
CY2022Q2	us-gaap	Goodwill Goodwill	2320049000	usd
CY2023	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	6776000	usd
CY2023	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	42622000	usd
CY2023	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-5337000	usd
CY2023	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-46000	usd
CY2023Q2	us-gaap	Goodwill Goodwill	2278820000	usd
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023Q2	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	534200000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2097812000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1207865000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	889947000	usd
CY2022Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2099177000	usd
CY2022Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	963158000	usd
CY2022Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1136019000	usd
CY2023Q2	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	2159134000	usd
CY2023Q2	klac	Finite Lived Intangible Assets Accumulated Amortization And Other Accumulated Adjustment FiniteLivedIntangibleAssetsAccumulatedAmortizationAndOtherAccumulatedAdjustment	1223831000	usd
CY2023Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	935303000	usd
CY2022Q2	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	2163634000	usd
CY2022Q2	klac	Finite Lived Intangible Assets Accumulated Amortization And Other Accumulated Adjustment FiniteLivedIntangibleAssetsAccumulatedAmortizationAndOtherAccumulatedAdjustment	969220000	usd
CY2022Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1194414000	usd
CY2022	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2023	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	260619000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	229098000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	206252000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	238575000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	222123000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	206210000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	129630000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	47232000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	46177000	usd
CY2023Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	889947000	usd
CY2023Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	5890736000	usd
CY2022Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	6660718000	usd
CY2023Q2	us-gaap	Long Term Debt LongTermDebt	5890736000	usd
CY2022Q2	us-gaap	Long Term Debt LongTermDebt	6660718000	usd
CY2023Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	5890736000	usd
CY2022Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	6660718000	usd
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	41800000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	36600000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	38900000	usd
CY2023Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y8M12D
CY2022Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y9M18D
CY2023Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0336
CY2022Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0218
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	47294000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	37994000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	115377000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	55886000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	38042000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	34555000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	27732000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	22462000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	14949000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	60612000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	198352000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	25956000	usd
CY2023Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	172396000	usd
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	10760000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	761000	shares
CY2021	klac	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Adjustment ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodAdjustment	102000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	152000	shares
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	10253000	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	1152000	shares
CY2022	klac	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Adjustment ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodAdjustment	39000	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	102000	shares
CY2022Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	9242000	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	1601000	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	120000	shares
CY2023Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	7761000	shares
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	171424000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	126918000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	111836000	usd
CY2023Q2	klac	Stock Based Compensation Capitalized As Inventory StockBasedCompensationCapitalizedAsInventory	16700000	usd
CY2022Q2	klac	Stock Based Compensation Capitalized As Inventory StockBasedCompensationCapitalizedAsInventory	8600000	usd
CY2023Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	831700000	usd
CY2023	klac	Employee Stock Purchase Plan Offering Period EmployeeStockPurchasePlanOfferingPeriod	P6M
CY2023	klac	Employee Stock Purchase Plan Offering Period EmployeeStockPurchasePlanOfferingPeriod	P6M
CY2023Q2	klac	Espp Maximum Annual Share Replenishment ESPPMaximumAnnualShareReplenishment	2000000	shares
CY2023Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.30
CY2023	us-gaap	Payments Of Dividends PaymentsOfDividends	732600000	usd
CY2022	us-gaap	Payments Of Dividends PaymentsOfDividends	638500000	usd
CY2021Q3	klac	Stock Repurchase Program Authorized Repurchase Amount Increase During Period StockRepurchaseProgramAuthorizedRepurchaseAmountIncreaseDuringPeriod	2000000000	usd
CY2022Q2	klac	Stock Repurchase Program Authorized Repurchase Amount Increase During Period StockRepurchaseProgramAuthorizedRepurchaseAmountIncreaseDuringPeriod	6000000000	usd
CY2022Q2	klac	Accelerated Share Repurchase Program Number Of Financial Institutions AcceleratedShareRepurchaseProgramNumberOfFinancialInstitutions	2	financialinstitution
CY2022Q2	us-gaap	Accelerated Share Repurchases Settlement Payment Or Receipt AcceleratedShareRepurchasesSettlementPaymentOrReceipt	3000000000	usd
CY2022Q2	klac	Accelerated Share Repurchases Stock Repurchased Shares AcceleratedShareRepurchasesStockRepurchasedShares	6500000	shares
CY2022Q2	klac	Accelerated Share Repurchases Stock Repurchased Shares Percentage Of Prepayment Amount At Market Price AcceleratedShareRepurchasesStockRepurchasedSharesPercentageOfPrepaymentAmountAtMarketPrice	0.70
CY2022Q4	klac	Accelerated Share Repurchases Final Settlement Receipt AcceleratedShareRepurchasesFinalSettlementReceipt	2400000	usd
CY2022Q4	klac	Accelerated Share Repurchases Stock Repurchased Average Price Per Share AcceleratedShareRepurchasesStockRepurchasedAveragePricePerShare	333.88
CY2023Q2	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	1910000000	usd
CY2022	us-gaap	Accelerated Share Repurchase Program Adjustment AcceleratedShareRepurchaseProgramAdjustment	900000000	usd
CY2023	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	5844000	shares
CY2022	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	11768000	shares
CY2021	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	3658000	shares
CY2023	klac	Treasury Stock Value Acquired Excluding Accelerated Share Repurchase Program Forward Contracts TreasuryStockValueAcquiredExcludingAcceleratedShareRepurchaseProgramForwardContracts	1329714000	usd
CY2022	klac	Treasury Stock Value Acquired Excluding Accelerated Share Repurchase Program Forward Contracts TreasuryStockValueAcquiredExcludingAcceleratedShareRepurchaseProgramForwardContracts	3962267000	usd
CY2021	klac	Treasury Stock Value Acquired Excluding Accelerated Share Repurchase Program Forward Contracts TreasuryStockValueAcquiredExcludingAcceleratedShareRepurchaseProgramForwardContracts	944607000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	3387277000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	3321807000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2078292000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	139483000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150494000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154086000	shares
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	752000	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1061000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1351000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	140235000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151555000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155437000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	24.28
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	22.07
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	13.49
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	24.15
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	21.92
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	13.37
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8000	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	11000	shares
CY2023	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	37300000	usd
CY2022	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	33300000	usd
CY2021	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	27000000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	124585000	usd
CY2021Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	134305000	usd
CY2023	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	3807000	usd
CY2022	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	5054000	usd
CY2023	klac	Defined Benefit Plan Benefit Obligation Interest Cost DefinedBenefitPlanBenefitObligationInterestCost	1689000	usd
CY2022	klac	Defined Benefit Plan Benefit Obligation Interest Cost DefinedBenefitPlanBenefitObligationInterestCost	1003000	usd
CY2023	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	70000	usd
CY2022	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	78000	usd
CY2023	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	7686000	usd
CY2022	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-3029000	usd
CY2023	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	4837000	usd
CY2022	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	2164000	usd
CY2023	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	191000	usd
CY2022	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	670000	usd
CY2023	us-gaap	Defined Benefit Plan Benefit Obligation Payment For Settlement DefinedBenefitPlanBenefitObligationPaymentForSettlement	931000	usd
CY2022	us-gaap	Defined Benefit Plan Benefit Obligation Payment For Settlement DefinedBenefitPlanBenefitObligationPaymentForSettlement	1010000	usd
CY2023	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	3752000	usd
CY2022	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	16380000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	113136000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	124585000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	43593000	usd
CY2021Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	44726000	usd
CY2023	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	8396000	usd
CY2022	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	6955000	usd
CY2023	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-827000	usd
CY2022	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-3831000	usd
CY2023	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	931000	usd
CY2022	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	1010000	usd
CY2023	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	-1064000	usd
CY2022	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	-1087000	usd
CY2023	klac	Defined Benefit Plan Benefits And Expenses Paid DefinedBenefitPlanBenefitsAndExpensesPaid	3237000	usd
CY2022	klac	Defined Benefit Plan Benefits And Expenses Paid DefinedBenefitPlanBenefitsAndExpensesPaid	2160000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	45930000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	43593000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-67206000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-80992000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	65992000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	77697000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	108084000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	124585000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	40648000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	43593000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	10733000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	12414000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-12932000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-19400000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	23665000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	31814000	usd
CY2023	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	3807000	usd
CY2022	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	5054000	usd
CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	4649000	usd
CY2023	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1678000	usd
CY2022	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1003000	usd
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1187000	usd
CY2023	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	426000	usd
CY2022	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	528000	usd
CY2021	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	549000	usd
CY2023	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	873000	usd
CY2022	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	671000	usd
CY2021	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	0	usd
CY2023	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-698000	usd
CY2022	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1406000	usd
CY2021	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1071000	usd
CY2023	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	-85000	usd
CY2022	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	-38000	usd
CY2021	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	-130000	usd
CY2023	klac	Defined Benefit Plan Net Periodic Benefit Cost Credit Foreign Currency Exchange Rate Changes DefinedBenefitPlanNetPeriodicBenefitCostCreditForeignCurrencyExchangeRateChanges	0	usd
CY2022	klac	Defined Benefit Plan Net Periodic Benefit Cost Credit Foreign Currency Exchange Rate Changes DefinedBenefitPlanNetPeriodicBenefitCostCreditForeignCurrencyExchangeRateChanges	19000	usd
CY2021	klac	Defined Benefit Plan Net Periodic Benefit Cost Credit Foreign Currency Exchange Rate Changes DefinedBenefitPlanNetPeriodicBenefitCostCreditForeignCurrencyExchangeRateChanges	0	usd
CY2023	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	6715000	usd
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	7625000	usd
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	6488000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1
CY2023Q2	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1
CY2023Q2	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	7700000	usd
CY2023Q2	klac	Defined Benefit Plan Maximum Yearly Expected Future Benefit Payments DefinedBenefitPlanMaximumYearlyExpectedFutureBenefitPayments	6900000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2017338000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1909699000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1251820000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1771852000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1579538000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1108634000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3789190000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3489237000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2360454000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	553197000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	341614000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	201413000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	14804000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	14149000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6164000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	188991000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	165194000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	121146000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	756992000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	520957000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	328723000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-228414000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	11564000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-31989000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-4295000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-311000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1155000	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-122444000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-365033000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-12478000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-355153000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-353780000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-45622000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	401839000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	167177000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	283101000	usd
CY2023Q2	klac	Deferred Tax Assets Tax Credits And Net Operating Losses DeferredTaxAssetsTaxCreditsAndNetOperatingLosses	271500000	usd
CY2022Q2	klac	Deferred Tax Assets Tax Credits And Net Operating Losses DeferredTaxAssetsTaxCreditsAndNetOperatingLosses	268416000	usd
CY2023Q2	klac	Deferred Tax Assets Capitalized Research And Development Expenses DeferredTaxAssetsCapitalizedResearchAndDevelopmentExpenses	201228000	usd
CY2022Q2	klac	Deferred Tax Assets Capitalized Research And Development Expenses DeferredTaxAssetsCapitalizedResearchAndDevelopmentExpenses	0	usd
CY2023Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	103646000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	86059000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	92696000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	78021000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	73691000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	1760000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	52147000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	53426000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	16668000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	11843000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	12710000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	9864000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	35360000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	56911000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	859646000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	566300000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	259172000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	244429000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	600474000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	321871000	usd
CY2023Q2	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	279677000	usd
CY2022Q2	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	358374000	usd
CY2023Q2	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	23149000	usd
CY2022Q2	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	30268000	usd
CY2023Q2	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	9994000	usd
CY2022Q2	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	12993000	usd
CY2023Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	312820000	usd
CY2022Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	401635000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	287654000	usd
CY2022Q2	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	79764000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	259200000	usd
CY2022Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	244400000	usd
CY2023Q2	klac	Undistributed Earnings For Certain Foreign Subsidiaries UndistributedEarningsForCertainForeignSubsidiaries	185900000	usd
CY2023Q2	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability Undistributed Earnings Of Foreign Subsidiaries DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries	39000000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	0.034
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	0.020
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	0.026
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.002
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.003
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.002
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.001
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.002
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.003
CY2023	klac	Effective Income Tax Rate Reconciliation Net Change In Tax Reserves Percent EffectiveIncomeTaxRateReconciliationNetChangeInTaxReservesPercent	0
CY2022	klac	Effective Income Tax Rate Reconciliation Net Change In Tax Reserves Percent EffectiveIncomeTaxRateReconciliationNetChangeInTaxReservesPercent	0.020
CY2021	klac	Effective Income Tax Rate Reconciliation Net Change In Tax Reserves Percent EffectiveIncomeTaxRateReconciliationNetChangeInTaxReservesPercent	-0.011
CY2023	klac	Effective Income Tax Rate Reconciliation Tax Rate Change On Deferred Tax Liability On Purchased Intangibles Percent EffectiveIncomeTaxRateReconciliationTaxRateChangeOnDeferredTaxLiabilityOnPurchasedIntangiblesPercent	0
CY2022	klac	Effective Income Tax Rate Reconciliation Tax Rate Change On Deferred Tax Liability On Purchased Intangibles Percent EffectiveIncomeTaxRateReconciliationTaxRateChangeOnDeferredTaxLiabilityOnPurchasedIntangiblesPercent	0
CY2021	klac	Effective Income Tax Rate Reconciliation Tax Rate Change On Deferred Tax Liability On Purchased Intangibles Percent EffectiveIncomeTaxRateReconciliationTaxRateChangeOnDeferredTaxLiabilityOnPurchasedIntangiblesPercent	0.017
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges	0
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges	-0.112
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges	0
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.015
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.011
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.011
CY2023	klac	Effective Income Tax Rate Reconciliation Foreign Derived Intangible Income Percent EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncomePercent	-0.057
CY2022	klac	Effective Income Tax Rate Reconciliation Foreign Derived Intangible Income Percent EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncomePercent	-0.040
CY2021	klac	Effective Income Tax Rate Reconciliation Foreign Derived Intangible Income Percent EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncomePercent	-0.043
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.071
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.042
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.066
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.002
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.002
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.106
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.048
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.120
CY2022Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	217927000	usd
CY2021Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	149642000	usd
CY2020Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	172443000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	44590000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	49311000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	31113000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	434000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	20917000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	6557000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	45042000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	28651000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	3929000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	267000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	19360000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	888000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1676000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	12460000	usd
CY2023Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	213092000	usd
CY2022Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	217927000	usd
CY2021Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	149642000	usd
CY2023Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	199000000	usd
CY2022Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	205000000	usd
CY2021Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	137800000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	20200000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	11500000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	2800000	usd
CY2023Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	33000000	usd
CY2022Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	52000000	usd
CY2023Q2	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	2700000	usd
CY2023	klac	Receivables Sold Under Factoring Agreements ReceivablesSoldUnderFactoringAgreements	328933000	usd
CY2022	klac	Receivables Sold Under Factoring Agreements ReceivablesSoldUnderFactoringAgreements	250983000	usd
CY2021	klac	Receivables Sold Under Factoring Agreements ReceivablesSoldUnderFactoringAgreements	305565000	usd
CY2023	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	69247000	usd
CY2022	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	151924000	usd
CY2021	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	133679000	usd
CY2023Q2	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	2510000000	usd
CY2023	klac	Outstanding Inventory Purchase Commitment OutstandingInventoryPurchaseCommitment	P12M
CY2023Q2	klac	Long Term Incentive Plan Committed Amount LongTermIncentivePlanCommittedAmount	175400000	usd
CY2023	klac	Guarantee Arrangements To Fund Guarantees To Customs Authorities Amount GuaranteeArrangementsToFundGuaranteesToCustomsAuthoritiesAmount	78200000	usd
CY2023	klac	Guarantee Arrangements To Fund Guarantees To Customs Authorities Amount Issued GuaranteeArrangementsToFundGuaranteesToCustomsAuthoritiesAmountIssued	44700000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6918734000	usd
CY2021	klac	Cost Of Revenue And Operating Expense CostOfRevenueAndOperatingExpense	4430254000	usd
CY2021	us-gaap	Interest Expense InterestExpense	157328000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	29302000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9211883000	usd
CY2022	klac	Cost Of Revenue And Operating Expense CostOfRevenueAndOperatingExpense	5557702000	usd
CY2022	us-gaap	Interest Expense InterestExpense	160339000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4605000	usd
CY2023	klac	Cost Of Revenue And Operating Expense CostOfRevenueAndOperatingExpense	6501360000	usd
CY2023	us-gaap	Interest Expense InterestExpense	296940000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	104720000	usd
CY2023Q2	us-gaap	Derivative Remaining Maturity1 DerivativeRemainingMaturity1	P11M
CY2022Q2	us-gaap	Derivative Remaining Maturity1 DerivativeRemainingMaturity1	P11M
CY2023	klac	Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeAssetStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Consolidated Balance Sheets
CY2023	klac	Derivative Liability Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Consolidated Balance Sheets
CY2022	klac	Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeAssetStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Consolidated Balance Sheets
CY2022	klac	Derivative Liability Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Consolidated Balance Sheets
CY2023Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	35712000	usd
CY2023Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	usd
CY2023Q2	us-gaap	Derivative Assets DerivativeAssets	35712000	usd
CY2023Q2	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	8968000	usd
CY2023Q2	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	usd
CY2023Q2	us-gaap	Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	26744000	usd
CY2023Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	12106000	usd
CY2023Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	usd
CY2023Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	12106000	usd
CY2023Q2	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	8968000	usd
CY2023Q2	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	usd
CY2023Q2	us-gaap	Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	3138000	usd
CY2022Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	40311000	usd
CY2022Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	usd
CY2022Q2	us-gaap	Derivative Assets DerivativeAssets	40311000	usd
CY2022Q2	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	12291000	usd
CY2022Q2	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	usd
CY2022Q2	us-gaap	Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	28020000	usd
CY2022Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	34315000	usd
CY2022Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	usd
CY2022Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	34315000	usd
CY2022Q2	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	12291000	usd
CY2022Q2	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	usd
CY2022Q2	us-gaap	Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	22024000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	860007000	usd
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	729602000	usd
CY2023	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	3883000	usd
CY2022	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	1082000	usd
CY2021	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	1347000	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	10496056000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9211883000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6918734000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1296727000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1105254000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	928487000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	986326000	usd
CY2023	us-gaap	Interest Expense InterestExpense	296940000	usd
CY2022	us-gaap	Interest Expense InterestExpense	160339000	usd
CY2021	us-gaap	Interest Expense InterestExpense	157328000	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-13286000	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	104720000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4605000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	29302000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3789190000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3489237000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2360454000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	10496056000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6918734000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	10496056000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9211883000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6918734000	usd
CY2023Q2	us-gaap	Noncurrent Assets NoncurrentAssets	1031841000	usd
CY2022Q2	us-gaap	Noncurrent Assets NoncurrentAssets	849929000	usd
CY2023	us-gaap	Restructuring Charges RestructuringCharges	44000000	usd
CY2022	us-gaap	Restructuring Charges RestructuringCharges	1000000	usd
CY2021	us-gaap	Restructuring Charges RestructuringCharges	12400000	usd
CY2023	us-gaap	Restructuring Reserve Accelerated Depreciation RestructuringReserveAcceleratedDepreciation	3900000	usd
CY2023Q2	us-gaap	Restructuring Reserve RestructuringReserve	11000000	usd
CY2022Q2	us-gaap	Restructuring Reserve RestructuringReserve	2100000	usd
CY2023	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2023	dei	Auditor Location AuditorLocation	San Jose, California
CY2023Q2	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023Q2	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q2	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023	dei	Auditor Firm AuditorFirmId	238

Files In Submission

Name	View Source	Status
0000319201-23-000031-index-headers.html	Edgar Link	pending
0000319201-23-000031-index.html	Edgar Link	pending
0000319201-23-000031.txt	Edgar Link	pending
0000319201-23-000031-xbrl.zip	Edgar Link	pending
exhibit19106302023.htm	Edgar Link	pending
exhibit21106302023.htm	Edgar Link	pending
exhibit23106302023.htm	Edgar Link	pending
exhibit31106302023.htm	Edgar Link	pending
exhibit31206302023.htm	Edgar Link	pending
exhibit3206302023.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
klac-20230630.htm	Edgar Link	pending
klac-20230630.xsd	Edgar Link	pending
klac-20230630_g1.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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R118.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
klac-20230630_cal.xml	Edgar Link	unprocessable
klac-20230630_def.xml	Edgar Link	unprocessable
klac-20230630_lab.xml	Edgar Link	unprocessable
klac-20230630_htm.xml	Edgar Link	completed
R119.htm	Edgar Link	pending
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R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
klac-20230630_pre.xml	Edgar Link	unprocessable

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$KLAC
KLA CORP Stock $klac

2023 Q3 Form 10-K Financial Statement

#000031920123000031 Filed on August 04, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KLAC KLA CORP Stock $klac

2023 Q3 Form 10-K Financial Statement

#000031920123000031 Filed on August 04, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KLAC
KLA CORP Stock $klac