$KLAC
KLA CORP Stock $klac

$klac Overview Financials Valuation SEC Filings Company Website

2024 Q3 Form 10-K Financial Statement

#000031920124000021 Filed on August 05, 2024

Income Statement

Concept	2024 Q3	2024 Q2	2024
Revenue	$2.842B	$2.569B	$9.812B
YoY Change	18.55%	9.07%	-6.51%
Cost Of Revenue	$1.147B	$962.4M	$3.742B
YoY Change	21.18%	5.18%	-7.12%
Gross Profit	$1.694B	$1.606B	$6.071B
YoY Change	16.83%	11.54%	-6.14%
Gross Profit Margin	59.62%	62.54%	61.87%
Selling, General & Admin	$251.0M	$229.0M	$899.5M
YoY Change	4.76%	0.05%	2.14%
% of Gross Profit	14.82%	14.26%	14.82%
Research & Development	$323.1M	$323.5M	$1.275B
YoY Change	3.83%	2.91%	-0.42%
% of Gross Profit	19.07%	20.14%	21.0%
Depreciation & Amortization	$95.82M	$101.0M	$401.7M
YoY Change	-6.43%	-3.64%	-3.22%
% of Gross Profit	5.66%	6.29%	6.62%
Operating Expenses	$574.2M	$552.5M	$2.174B
YoY Change	4.23%	1.71%	0.63%
Operating Profit	$1.120B	$1.054B	$3.897B
YoY Change	24.55%	17.49%	-9.53%
Interest Expense	-$82.17M	-$82.84M	-$311.3M
YoY Change	-210.69%	12.72%	4.82%
% of Operating Profit	-7.34%	-7.86%	-7.99%
Other Income/Expense, Net	$40.94M	$50.56M	$155.1M
YoY Change	53.09%	104.07%	48.09%
Pretax Income	$1.079B	$945.0M	$3.190B
YoY Change	26.65%	21.86%	-15.81%
Income Tax	$132.8M	$108.6M	$428.1M
% Of Pretax Income	12.31%	11.49%	13.42%
Net Earnings	$945.9M	$836.4M	$2.762B
YoY Change	27.58%	22.17%	-18.46%
Net Earnings / Revenue	33.29%	32.56%	28.15%
Basic Earnings Per Share	$7.05		$20.41
Diluted Earnings Per Share	$7.01	$6.18	$20.28
COMMON SHARES
Basic Shares Outstanding	134.4M shares	134.6M shares	135.3M shares
Diluted Shares Outstanding	134.9M shares		136.2M shares

Balance Sheet

Concept	2024 Q3	2024 Q2	2024
SHORT-TERM ASSETS
Cash & Short-Term Investments	$4.630B	$4.504B	$4.504B
YoY Change	38.24%	38.88%	38.88%
Cash & Equivalents	$1.977B	$1.977B	$1.977B
Short-Term Investments	$2.653B	$2.527B	$2.527B
Other Short-Term Assets	$535.7M	$659.3M	$659.3M
YoY Change	20.93%	32.2%	32.2%
Inventory	$3.110B	$3.035B	$3.035B
Prepaid Expenses	$118.4M	$125.0M
Receivables	$1.953B	$1.833B	$1.833B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$10.23B	$10.03B	$10.03B
YoY Change	21.32%	19.82%	19.82%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.118B	$1.110B	$1.110B
YoY Change	5.51%	7.57%	7.57%
Goodwill	$2.016B	$2.016B
YoY Change	-11.54%	-11.55%
Intangibles	$612.0M	$668.8M
YoY Change	-29.82%	-28.5%
Long-Term Investments
YoY Change
Other Assets	$725.7M	$1.608B	$1.608B
YoY Change	16.13%	10.56%	10.56%
Total Long-Term Assets	$5.453B	$5.402B	$5.402B
YoY Change	-4.43%	-5.23%	-5.23%
TOTAL ASSETS
Total Short-Term Assets	$10.23B	$10.03B	$10.03B
Total Long-Term Assets	$5.453B	$5.402B	$5.402B
Total Assets	$15.68B	$15.43B	$15.43B
YoY Change	10.93%	9.67%	9.67%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$376.5M	$359.5M	$359.5M
YoY Change	3.53%	-3.11%	-3.11%
Accrued Expenses	$1.324B	$1.271B	$1.271B
YoY Change	11.44%	10.37%	10.37%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$750.0M	$749.9M	$749.9M
YoY Change
Total Short-Term Liabilities	$4.798B	$4.661B	$4.661B
YoY Change	25.68%	24.52%	24.52%
LONG-TERM LIABILITIES
Long-Term Debt	$5.881B	$5.880B	$5.880B
YoY Change	-0.18%	-0.18%	-0.18%
Other Long-Term Liabilities	$651.1M	$1.038B	$1.038B
YoY Change	-11.91%	4.83%	4.83%
Total Long-Term Liabilities	$651.1M	$6.918B	$6.918B
YoY Change	-11.91%	0.54%	0.54%
TOTAL LIABILITIES
Total Short-Term Liabilities	$4.798B	$4.661B	$4.661B
Total Long-Term Liabilities	$651.1M	$6.918B	$6.918B
Total Liabilities	$12.12B	$12.07B	$12.07B
YoY Change	8.75%	8.18%	8.18%
SHAREHOLDERS EQUITY
Retained Earnings	$1.328B	$1.137B
YoY Change	37.47%	34.04%
Common Stock		$2.280B
YoY Change		8.18%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.560B	$3.368B	$3.368B
YoY Change
Total Liabilities & Shareholders Equity	$15.68B	$15.43B	$15.43B
YoY Change	10.93%	9.67%	9.67%

Cashflow Statement

Concept	2024 Q3	2024 Q2	2024
OPERATING ACTIVITIES
Net Income	$945.9M	$836.4M	$2.762B
YoY Change	27.58%	22.17%	-18.46%
Depreciation, Depletion And Amortization	$95.82M	$101.0M	$401.7M
YoY Change	-6.43%	-3.64%	-3.22%
Cash From Operating Activities	$995.2M	$892.6M	$3.309B
YoY Change	12.62%	-6.93%	-9.84%
INVESTING ACTIVITIES
Capital Expenditures	$60.39M	$60.75M	$277.4M
YoY Change	-11.25%	-22.8%	-18.8%
Acquisitions			$3.682M
YoY Change			-86.44%
Other Investing Activities	-$110.6M	-$78.05M	-$1.200B
YoY Change	-65.81%	-1958.7%	750.9%
Cash From Investing Activities	-$171.0M	-$138.8M	-$1.477B
YoY Change	-56.33%	86.34%	206.07%
FINANCING ACTIVITIES
Cash Dividend Paid	$198.1M		$773.0M
YoY Change	9.15%		5.51%
Common Stock Issuance & Retirement, Net			-$1.591B
YoY Change			34.02%
Debt Paid & Issued, Net			$0.00
YoY Change			-100.0%
Cash From Financing Activities	-$837.7M	-618.9M	-1.776B
YoY Change	18.8%	21.03%	-37.25%
NET CHANGE
Cash From Operating Activities	$995.2M	892.6M	3.309B
Cash From Investing Activities	-$171.0M	-138.8M	-1.477B
Cash From Financing Activities	-$837.7M	-618.9M	-1.776B
Net Change In Cash	$73.00K	135.0M	55.57M
YoY Change	-100.03%	-63.85%	-84.43%
FREE CASH FLOW
Cash From Operating Activities	$995.2M	$892.6M	$3.309B
Capital Expenditures	$60.39M	$60.75M	$277.4M
Free Cash Flow	$934.8M	$831.9M	$3.031B
YoY Change	14.61%	-5.52%	-8.92%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2024Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	743115000	usd
CY2024	dei	Document Annual Report DocumentAnnualReport	true
CY2024	dei	Document Transition Report DocumentTransitionReport	false
CY2024	dei	Entity File Number EntityFileNumber	000-09992
CY2024	dei	Entity Registrant Name EntityRegistrantName	KLA CORP
CY2024	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2024	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-2564110
CY2024	dei	Entity Address Address Line1 EntityAddressAddressLine1	One Technology Drive,
CY2024	dei	Entity Address City Or Town EntityAddressCityOrTown	Milpitas,
CY2024	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2024	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	95035
CY2024	dei	City Area Code CityAreaCode	408
CY2024	dei	Local Phone Number LocalPhoneNumber	875-3000
CY2024	dei	Security12b Title Security12bTitle	Common Stock, $0.001 par value per share
CY2024	dei	Trading Symbol TradingSymbol	KLAC
CY2024	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2024	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2024	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2024	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2024	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2024	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2024	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2024	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1927865000	usd
CY2023Q2	klac	Debt Securities Available For Sale And Equity Securities Fair Value DebtSecuritiesAvailableForSaleAndEquitySecuritiesFairValue	1315294000	usd
CY2023Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1753361000	usd
CY2023Q2	us-gaap	Inventory Net InventoryNet	2876784000	usd
CY2023Q2	us-gaap	Other Assets Current OtherAssetsCurrent	498728000	usd
CY2023Q2	us-gaap	Assets Current AssetsCurrent	8372032000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1031841000	usd
CY2023Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	816899000	usd
CY2023Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	935303000	usd
CY2023Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	637462000	usd
CY2023Q2	us-gaap	Assets Assets	14072357000	usd
CY2023Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	371026000	usd
CY2023Q2	klac	Contract With Customer Liability Current System Revenue ContractWithCustomerLiabilityCurrentSystemRevenue	651720000	usd
CY2023Q2	klac	Contract With Customer Liability Current Service Revenue ContractWithCustomerLiabilityCurrentServiceRevenue	416606000	usd
CY2024Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2063569000	usd
CY2024Q2	us-gaap	Liabilities Current LiabilitiesCurrent	4660774000	usd
CY2024Q2	us-gaap	Long Term Debt LongTermDebt	5880199000	usd
CY2024Q2	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	486690000	usd
CY2024Q2	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	294460000	usd
CY2024Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2024Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2023Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2023Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2024Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2024Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2023Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2024Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	280649000	shares
CY2024Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	134425000	shares
CY2024Q2	us-gaap	Common Stock Value CommonStockValue	134000	usd
CY2024Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2279999000	usd
CY2024Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1137270000	usd
CY2024Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-49075000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	3368328000	usd
CY2024	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	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
CY2024	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	155075000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	104720000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4605000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3190032000	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
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	428136000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	401839000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	167177000	usd
CY2024	us-gaap	Profit Loss ProfitLoss	2761896000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	3387351000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	3322060000	usd
CY2024	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	usd
CY2023	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	74000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	253000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	2761896000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	3387277000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	3321807000	usd
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	20.41
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	24.28
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	22.07
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	20.28
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	24.15
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	21.92
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	135345000	shares
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
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136187000	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
CY2024	us-gaap	Profit Loss ProfitLoss	2761896000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	3387351000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	3322060000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-11763000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-22288000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-15915000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-544000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-1547000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-4592000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-20741000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-11323000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	104952000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-13701000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3043000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-6074000	usd
CY2024	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	11527000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2459000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-20792000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-103000	usd
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CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-306000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	2487000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	756000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-4405000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	9143000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2689000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-16081000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-12734000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8870000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	48086000	usd
CY2024	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	74000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	253000	usd
CY2024	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2749162000	usd
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CY2024	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-11219000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	30025000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	25904000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	29058000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	5919000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-2466000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-2141000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	22105000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	3108000	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	732556000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	76928000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	1438000	usd
CY2024Q2	us-gaap	Derivative Remaining Maturity1 DerivativeRemainingMaturity1	P12M
CY2023Q2	us-gaap	Derivative Remaining Maturity1 DerivativeRemainingMaturity1	P11M
CY2024	dei	Amendment Flag AmendmentFlag	false
CY2024	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
CY2024	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2024	dei	Entity Central Index Key EntityCentralIndexKey	0000319201
CY2024Q2	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherAssetsNoncurrent
CY2023Q2	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherAssetsNoncurrent
CY2023Q2	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherLiabilitiesCurrent
CY2024Q2	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherLiabilitiesCurrent
CY2023Q2	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherLiabilitiesNoncurrent
CY2024Q2	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherLiabilitiesNoncurrent
CY2023	us-gaap	Impairment Of Intangible Asset Finite Lived Statement Of Income Or Comprehensive Income Extensible Enumeration ImpairmentOfIntangibleAssetFiniteLivedStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2024#IntangibleAssetsNetExcludingGoodwill
CY2024	us-gaap	Impairment Of Intangible Asset Finite Lived Statement Of Income Or Comprehensive Income Extensible Enumeration ImpairmentOfIntangibleAssetFiniteLivedStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2024#IntangibleAssetsNetExcludingGoodwill
CY2022	us-gaap	Impairment Of Intangible Asset Finite Lived Statement Of Income Or Comprehensive Income Extensible Enumeration ImpairmentOfIntangibleAssetFiniteLivedStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2024#IntangibleAssetsNetExcludingGoodwill
CY2024	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/2024#CostOfRevenue http://fasb.org/us-gaap/2024#ResearchAndDevelopmentExpense http://fasb.org/us-gaap/2024#SellingGeneralAndAdministrativeExpense
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/2024#CostOfRevenue http://fasb.org/us-gaap/2024#ResearchAndDevelopmentExpense http://fasb.org/us-gaap/2024#SellingGeneralAndAdministrativeExpense
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/2024#CostOfRevenue http://fasb.org/us-gaap/2024#ResearchAndDevelopmentExpense http://fasb.org/us-gaap/2024#SellingGeneralAndAdministrativeExpense
CY2024	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/2024#OtherNonoperatingIncomeExpense
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/2024#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/2024#OtherNonoperatingIncomeExpense
CY2024	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--06-30
CY2024	dei	Entity Small Business EntitySmallBusiness	false
CY2024	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2024	dei	Entity Shell Company EntityShellCompany	false
CY2023Q4	dei	Entity Public Float EntityPublicFloat	78540000000	usd
CY2024Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	134425022	shares
CY2024	dei	Auditor Firm AuditorFirmId	238
CY2024Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1977129000	usd
CY2024Q2	klac	Debt Securities Available For Sale And Equity Securities Fair Value DebtSecuritiesAvailableForSaleAndEquitySecuritiesFairValue	2526866000	usd
CY2024Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1833041000	usd
CY2024Q2	us-gaap	Inventory Net InventoryNet	3034781000	usd
CY2024Q2	us-gaap	Other Assets Current OtherAssetsCurrent	659327000	usd
CY2024Q2	us-gaap	Assets Current AssetsCurrent	10031144000	usd
CY2024Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1109968000	usd
CY2024Q2	us-gaap	Goodwill Goodwill	2015726000	usd
CY2023Q2	us-gaap	Goodwill Goodwill	2278820000	usd
CY2024Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	915241000	usd
CY2024Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	668764000	usd
CY2024Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	692723000	usd
CY2024Q2	us-gaap	Assets Assets	15433566000	usd
CY2024Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	359487000	usd
CY2024Q2	klac	Contract With Customer Liability Current System Revenue ContractWithCustomerLiabilityCurrentSystemRevenue	985856000	usd
CY2024Q2	klac	Contract With Customer Liability Current Service Revenue ContractWithCustomerLiabilityCurrentServiceRevenue	501926000	usd
CY2024Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	749936000	usd
CY2023Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	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
CY2023Q2	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	176681000	usd
CY2023Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	813058000	usd
CY2024Q2	us-gaap	Liabilities Liabilities	12065238000	usd
CY2023Q2	us-gaap	Liabilities Liabilities	11152604000	usd
CY2023Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2024Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2024Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2024Q2	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
CY2024Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	15433566000	usd
CY2023Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14072357000	usd
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9812247000	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
CY2024	us-gaap	Cost Of Revenue CostOfRevenue	3928073000	usd
CY2023	us-gaap	Cost Of Revenue CostOfRevenue	4218307000	usd
CY2022	us-gaap	Cost Of Revenue CostOfRevenue	3592441000	usd
CY2024	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1278981000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1296727000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1105254000	usd
CY2024	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	969509000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	986326000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	860007000	usd
CY2024	us-gaap	Asset Impairment Charges AssetImpairmentCharges	289474000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2024	us-gaap	Interest Expense Nonoperating InterestExpenseNonoperating	311253000	usd
CY2023	us-gaap	Interest Expense Nonoperating InterestExpenseNonoperating	296940000	usd
CY2022	us-gaap	Interest Expense Nonoperating InterestExpenseNonoperating	160339000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	9737000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	3321807000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	253000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	48086000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	28644000	usd
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	4862267000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	4.20
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	639391000	usd
CY2022	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	602000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	126918000	usd
CY2022Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1399090000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	3387277000	usd
CY2023	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	74000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8870000	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	29930000	usd
CY2023	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1329714000	usd
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	5.20
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	733547000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	171424000	usd
CY2023	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	4294000	usd
CY2023	klac	Noncontrolling Interest Disposal NoncontrollingInterestDisposal	8383000	usd
CY2023Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2919753000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	2761896000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-12734000	usd
CY2024	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1908000	usd
CY2024	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1742501000	usd
CY2024	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	5.65
CY2024	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	772689000	usd
CY2024	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	212695000	usd
CY2024Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3368328000	usd
CY2024	us-gaap	Profit Loss ProfitLoss	2761896000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	3387351000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	3322060000	usd
CY2024	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	289474000	usd
CY2023	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	9905000	usd
CY2022	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	5962000	usd
CY2024	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	401730000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	415113000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	363344000	usd
CY2024	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	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
CY2024	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	12533000	usd
CY2023	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	17825000	usd
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-46531000	usd
CY2024	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	11307000	usd
CY2023	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	usd
CY2022	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	usd
CY2024	klac	Proceeds From Disposal Of Noncontrolling Interest ProceedsFromDisposalOfNoncontrollingInterest	0	usd
CY2023	klac	Proceeds From Disposal Of Noncontrolling Interest ProceedsFromDisposalOfNoncontrollingInterest	8270000	usd
CY2022	klac	Proceeds From Disposal Of Noncontrolling Interest ProceedsFromDisposalOfNoncontrollingInterest	0	usd
CY2024	us-gaap	Share Based Compensation ShareBasedCompensation	212695000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	171424000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	126918000	usd
CY2024	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	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
CY2024	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-155228000	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
CY2024	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	-415000	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
CY2024	klac	Increase Decrease In Accounts Receivable Excluding Acquisition Related IncreaseDecreaseInAccountsReceivableExcludingAcquisitionRelated	80894000	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
CY2024	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	164092000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	749047000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	567003000	usd
CY2024	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	289509000	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
CY2024	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	24976000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-144661000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	101632000	usd
CY2024	klac	Increase Decrease In Contract With Customer Liability System Revenue IncreaseDecreaseInContractWithCustomerLiabilitySystemRevenue	334136000	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
CY2024	klac	Increase Decrease In Contract With Customer Liability Service Revenue IncreaseDecreaseInContractWithCustomerLiabilityServiceRevenue	203106000	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
CY2024	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-228904000	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
CY2024	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3308575000	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
CY2024	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	5079000	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
CY2024	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	usd
CY2023	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	75358000	usd
CY2022	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	usd
CY2024	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	3682000	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
CY2024	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	277384000	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
CY2024	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2756987000	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
CY2024	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	107773000	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
CY2024	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1459864000	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
CY2024	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	134098000	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
CY2024	klac	Proceeds From Sale Of Trading Securities ProceedsFromSaleOfTradingSecurities	121020000	usd
CY2023	klac	Proceeds From Sale Of Trading Securities ProceedsFromSaleOfTradingSecurities	89528000	usd
CY2022	klac	Proceeds From Sale Of Trading Securities ProceedsFromSaleOfTradingSecurities	116350000	usd
CY2024	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	1430000	usd
CY2023	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	1020000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	795000	usd
CY2024	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1476985000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-482571000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-876458000	usd
CY2024	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	usd
CY2023	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6515000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	usd
CY2024	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	735043000	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
CY2024	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	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
CY2024	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1087250000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	620000000	usd
CY2024	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1735746000	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
CY2024	klac	Payments For Forward Contract For Accelerated Share Repurchases PaymentsForForwardContractForAcceleratedShareRepurchases	0	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
CY2024	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	773041000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	638528000	usd
CY2024	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	usd
CY2023	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	usd
CY2022	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	602000	usd
CY2024	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	144934000	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
CY2024	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	143024000	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
CY2024	klac	Contingent Consideration Payable And Other Net ContingentConsiderationPayableAndOtherNet	-4183000	usd
CY2023	klac	Contingent Consideration Payable And Other Net ContingentConsiderationPayableAndOtherNet	-17850000	usd
CY2022	klac	Contingent Consideration Payable And Other Net ContingentConsiderationPayableAndOtherNet	-1121000	usd
CY2024	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	usd
CY2023	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	4295000	usd
CY2022	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	usd
CY2024	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1776017000	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
CY2024	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-6309000	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
CY2024	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	49264000	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
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
CY2024Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1977129000	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
CY2024	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	830835000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	495101000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	464526000	usd
CY2024	us-gaap	Interest Paid Net InterestPaidNet	276597000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	223955000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	154673000	usd
CY2024	klac	Noncash Or Part Noncash Acquisition Contingent Consideration Payable Receivable NoncashOrPartNoncashAcquisitionContingentConsiderationPayableReceivable	-765000	usd
CY2023	klac	Noncash Or Part Noncash Acquisition Contingent Consideration Payable Receivable NoncashOrPartNoncashAcquisitionContingentConsiderationPayableReceivable	-1878000	usd
CY2022	klac	Noncash Or Part Noncash Acquisition Contingent Consideration Payable Receivable NoncashOrPartNoncashAcquisitionContingentConsiderationPayableReceivable	16281000	usd
CY2024	klac	Noncash Transaction Increase Decrease In Dividends Payable NoncashTransactionIncreaseDecreaseInDividendsPayable	8043000	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
CY2024	klac	Stock Repurchase Program Unsettled Common Stock Repurchase StockRepurchaseProgramUnsettledCommonStockRepurchase	5500000	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
CY2024	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	13849000	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
CY2024	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<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%">Comparability. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain reclassifications have been made to the prior year’s Consolidated Financial Statements to conform to the current year presentation. The reclassifications did not have material effects on the prior year’s Consolidated Balance Sheets, Statements of Operations, Comprehensive Income and Cash Flows.</span></div>
CY2024	us-gaap	Use Of Estimates UseOfEstimates	<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%">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></div>
CY2023	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	usd
CY2024	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	usd
CY2022	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	usd
CY2024	us-gaap	Depreciation Depreciation	181700000	usd
CY2023	us-gaap	Depreciation Depreciation	154200000	usd
CY2022	us-gaap	Depreciation Depreciation	122200000	usd
CY2024	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>
CY2024	klac	Deferred Compensation Arrangement With Individual Optional Payout Period DeferredCompensationArrangementWithIndividualOptionalPayoutPeriod	P15Y
CY2024Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1833041000	usd
CY2023Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1753361000	usd
CY2022Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1811877000	usd
CY2024	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	79680000	usd
CY2024	klac	Increase Decrease In Accounts Receivable Percentage IncreaseDecreaseInAccountsReceivablePercentage	0.05
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-58516000	usd
CY2023	klac	Increase Decrease In Accounts Receivable Percentage IncreaseDecreaseInAccountsReceivablePercentage	-0.03
CY2024Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	69259000	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
CY2024	klac	Increase Decrease In Contract With Customer Asset Net IncreaseDecreaseInContractWithCustomerAssetNet	-47878000	usd
CY2024	klac	Increase Decrease In Contract With Customer Asset Percentage IncreaseDecreaseInContractWithCustomerAssetPercentage	-0.41
CY2023	klac	Increase Decrease In Contract With Customer Asset Net IncreaseDecreaseInContractWithCustomerAssetNet	2390000	usd
CY2023	klac	Increase Decrease In Contract With Customer Asset Percentage IncreaseDecreaseInContractWithCustomerAssetPercentage	0.02
CY2024Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1782242000	usd
CY2023Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1245007000	usd
CY2022Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1007324000	usd
CY2024	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	537235000	usd
CY2024	klac	Increase Decrease In Contract With Customer Liability Percentage IncreaseDecreaseInContractWithCustomerLiabilityPercentage	0.43
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
CY2024	klac	Revenue Remainder Payable Acceptance Period RevenueRemainderPayableAcceptancePeriod	P30D
CY2024	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	104100000	usd
CY2024	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	56800000	usd
CY2024	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	963500000	usd
CY2023	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	819000000.0	usd
CY2024Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	9830000000	usd
CY2024Q2	klac	Contract With Customer Deposits ContractWithCustomerDeposits	745700000	usd
CY2024Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1780000000	usd
CY2024Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2024Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2024Q2	us-gaap	Cash Cash	287600000	usd
CY2024Q2	klac	Time Deposit Fair Value TimeDepositFairValue	932400000	usd
CY2024Q2	klac	Time Deposits Cash Equivalents Fair Value TimeDepositsCashEquivalentsFairValue	66200000	usd
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
CY2024Q2	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1865823000	usd
CY2023Q2	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1786993000	usd
CY2024Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	32782000	usd
CY2023Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	33632000	usd
CY2024Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1833041000	usd
CY2023Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1753361000	usd
CY2024Q2	klac	Other Inventories Spare Parts Net Of Reserves OtherInventoriesSparePartsNetOfReserves	589751000	usd
CY2023Q2	klac	Other Inventories Spare Parts Net Of Reserves OtherInventoriesSparePartsNetOfReserves	524096000	usd
CY2024Q2	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	1485400000	usd
CY2023Q2	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	1559202000	usd
CY2024Q2	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	700895000	usd
CY2023Q2	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	578864000	usd
CY2024Q2	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	258735000	usd
CY2023Q2	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	214622000	usd
CY2024Q2	us-gaap	Inventory Net InventoryNet	3034781000	usd
CY2023Q2	us-gaap	Inventory Net InventoryNet	2876784000	usd
CY2024Q2	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	279879000	usd
CY2023Q2	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	133067000	usd
CY2024Q2	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	124969000	usd
CY2023Q2	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	121204000	usd
CY2024Q2	us-gaap	Prepaid Taxes PrepaidTaxes	102398000	usd
CY2023Q2	us-gaap	Prepaid Taxes PrepaidTaxes	64901000	usd
CY2024Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	69259000	usd
CY2023Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	117137000	usd
CY2024Q2	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	82822000	usd
CY2023Q2	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	62419000	usd
CY2024Q2	us-gaap	Other Assets Current OtherAssetsCurrent	659327000	usd
CY2023Q2	us-gaap	Other Assets Current OtherAssetsCurrent	498728000	usd
CY2024Q2	us-gaap	Land Land	78260000	usd
CY2023Q2	us-gaap	Land Land	72287000	usd
CY2024Q2	klac	Buildings And Leasehold Improvements Gross BuildingsAndLeaseholdImprovementsGross	919919000	usd
CY2023Q2	klac	Buildings And Leasehold Improvements Gross BuildingsAndLeaseholdImprovementsGross	825975000	usd
CY2024Q2	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	1116793000	usd
CY2023Q2	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	1016713000	usd
CY2024Q2	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	64480000	usd
CY2023Q2	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	58036000	usd
CY2024Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	215006000	usd
CY2023Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	168817000	usd
CY2024Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2394458000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2141828000	usd
CY2024Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1284490000	usd
CY2023Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1109987000	usd
CY2024Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1109968000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1031841000	usd
CY2024Q2	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	303365000	usd
CY2023Q2	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	256846000	usd
CY2024Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	231812000	usd
CY2023Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	208706000	usd
CY2024Q2	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	157546000	usd
CY2023Q2	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	171910000	usd
CY2024Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	692723000	usd
CY2023Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	637462000	usd
CY2024Q2	klac	Contract With Customer Deposits Current ContractWithCustomerDepositsCurrent	645893000	usd
CY2023Q2	klac	Contract With Customer Deposits Current ContractWithCustomerDepositsCurrent	769000000	usd
CY2024Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	371713000	usd
CY2023Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	370536000	usd
CY2024Q2	us-gaap	Defined Benefit Pension Plan Liabilities Current DefinedBenefitPensionPlanLiabilitiesCurrent	303088000	usd
CY2023Q2	us-gaap	Defined Benefit Pension Plan Liabilities Current DefinedBenefitPensionPlanLiabilitiesCurrent	258223000	usd
CY2024Q2	us-gaap	Taxes Payable Current TaxesPayableCurrent	146740000	usd
CY2023Q2	us-gaap	Taxes Payable Current TaxesPayableCurrent	383012000	usd
CY2024Q2	us-gaap	Interest And Dividends Payable Current InterestAndDividendsPayableCurrent	128727000	usd
CY2023Q2	us-gaap	Interest And Dividends Payable Current InterestAndDividendsPayableCurrent	105270000	usd
CY2024Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	36391000	usd
CY2023Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	34042000	usd
CY2024Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	431017000	usd
CY2023Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	383407000	usd
CY2024Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2063569000	usd
CY2023Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2303490000	usd
CY2024Q2	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	291106000	usd
CY2023Q2	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	322113000	usd
CY2024Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	153117000	usd
CY2023Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	138354000	usd
CY2024Q2	klac	Contract With Customer Deposits Noncurrent ContractWithCustomerDepositsNoncurrent	99794000	usd
CY2023Q2	klac	Contract With Customer Deposits Noncurrent ContractWithCustomerDepositsNoncurrent	156874000	usd
CY2024Q2	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	51778000	usd
CY2023Q2	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	63672000	usd
CY2024Q2	klac	Other Liabilities Miscellaneous Noncurrent OtherLiabilitiesMiscellaneousNoncurrent	147320000	usd
CY2023Q2	klac	Other Liabilities Miscellaneous Noncurrent OtherLiabilitiesMiscellaneousNoncurrent	132045000	usd
CY2024Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	743115000	usd
CY2023Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	813058000	usd
CY2024	us-gaap	Investment Income Interest InvestmentIncomeInterest	160688000	usd
CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	74095000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	8695000	usd
CY2024	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	7268000	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
CY2024	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-103000	usd
CY2023	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-986000	usd
CY2022	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-306000	usd
CY2024	klac	Other Nonoperating Income Expense Miscellaneous OtherNonoperatingIncomeExpenseMiscellaneous	-12778000	usd
CY2023	klac	Other Nonoperating Income Expense Miscellaneous OtherNonoperatingIncomeExpenseMiscellaneous	31844000	usd
CY2022	klac	Other Nonoperating Income Expense Miscellaneous OtherNonoperatingIncomeExpenseMiscellaneous	-9069000	usd
CY2024	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	155075000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	104720000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4605000	usd
CY2024Q2	klac	Money Market Funds And Other MoneyMarketFundsAndOther	1585832000	usd
CY2024Q2	klac	Money Market Funds And Other MoneyMarketFundsAndOther	1585832000	usd
CY2024Q2	klac	Marketable Securities Excluding Time Deposits Amortized Cost MarketableSecuritiesExcludingTimeDepositsAmortizedCost	3263058000	usd
CY2024Q2	klac	Marketable Securities Excluding Time Deposit Gross Unrealized Gains MarketableSecuritiesExcludingTimeDepositGrossUnrealizedGains	1221000	usd
CY2024Q2	klac	Marketable Securities Excluding Time Deposits Gross Unrealized Losses MarketableSecuritiesExcludingTimeDepositsGrossUnrealizedLosses	5876000	usd
CY2024Q2	klac	Marketable Securities Excluding Time Deposits Fair Value MarketableSecuritiesExcludingTimeDepositsFairValue	3258403000	usd
CY2024Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	932436000	usd
CY2024Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	932436000	usd
CY2024Q2	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	1689540000	usd
CY2024Q2	klac	Cash Equivalents Gross Unrealized Gains CashEquivalentsGrossUnrealizedGains	0	usd
CY2024Q2	klac	Cash Equivalents Gross Unrealized Losses CashEquivalentsGrossUnrealizedLosses	1000	usd
CY2024Q2	klac	Cash Equivalents Fair Value Disclosure CashEquivalentsFairValueDisclosure	1689539000	usd
CY2024Q2	klac	Debt Securities Available For Sale Excluding Equity Securities Amortized Cost DebtSecuritiesAvailableForSaleExcludingEquitySecuritiesAmortizedCost	2505954000	usd
CY2024Q2	klac	Debt Securities Available For Sale Excluding Equity Securities Accumulated Gross Unrealized Gain DebtSecuritiesAvailableForSaleExcludingEquitySecuritiesAccumulatedGrossUnrealizedGain	1221000	usd
CY2024Q2	klac	Debt Securities Available For Sale Excluding Equity Securities Accumulated Gross Unrealized Loss DebtSecuritiesAvailableForSaleExcludingEquitySecuritiesAccumulatedGrossUnrealizedLoss	5875000	usd
CY2024Q2	klac	Debt Securities Available For Sale Excluding Equity Securities Fair Value DebtSecuritiesAvailableForSaleExcludingEquitySecuritiesFairValue	2501300000	usd
CY2023Q2	klac	Money Market Funds And Other MoneyMarketFundsAndOther	1257223000	usd
CY2023Q2	klac	Money Market Funds And Other MoneyMarketFundsAndOther	1257223000	usd
CY2023Q2	klac	Marketable Securities Excluding Time Deposits Amortized Cost MarketableSecuritiesExcludingTimeDepositsAmortizedCost	2471232000	usd
CY2023Q2	klac	Marketable Securities Excluding Time Deposit Gross Unrealized Gains MarketableSecuritiesExcludingTimeDepositGrossUnrealizedGains	66000	usd
CY2023Q2	klac	Marketable Securities Excluding Time Deposits Gross Unrealized Losses MarketableSecuritiesExcludingTimeDepositsGrossUnrealizedLosses	16350000	usd
CY2023Q2	klac	Marketable Securities Excluding Time Deposits Fair Value MarketableSecuritiesExcludingTimeDepositsFairValue	2454948000	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 Excluding Equity Securities Amortized Cost DebtSecuritiesAvailableForSaleExcludingEquitySecuritiesAmortizedCost	1313423000	usd
CY2023Q2	klac	Debt Securities Available For Sale Excluding Equity Securities Accumulated Gross Unrealized Gain DebtSecuritiesAvailableForSaleExcludingEquitySecuritiesAccumulatedGrossUnrealizedGain	62000	usd
CY2023Q2	klac	Debt Securities Available For Sale Excluding Equity Securities Accumulated Gross Unrealized Loss DebtSecuritiesAvailableForSaleExcludingEquitySecuritiesAccumulatedGrossUnrealizedLoss	16350000	usd
CY2023Q2	klac	Debt Securities Available For Sale Excluding Equity Securities Fair Value DebtSecuritiesAvailableForSaleExcludingEquitySecuritiesFairValue	1297135000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	409	investment
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	897988000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2200000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	295809000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	3676000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1193797000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	5876000	usd
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
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1608395000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	1606178000	usd
CY2024Q2	klac	Debt Securities Available For Sale Maturity Allocated And Single Maturity Date After One Through Three Years Amortized Cost DebtSecuritiesAvailableForSaleMaturityAllocatedAndSingleMaturityDateAfterOneThroughThreeYearsAmortizedCost	897559000	usd
CY2024Q2	klac	Debt Securities Available For Sale Maturity Allocated And Single Maturity Date After One Through Three Years Fair Value DebtSecuritiesAvailableForSaleMaturityAllocatedAndSingleMaturityDateAfterOneThroughThreeYearsFairValue	895122000	usd
CY2024Q2	klac	Debt Securities Available For Sale Excluding Equity Securities Amortized Cost DebtSecuritiesAvailableForSaleExcludingEquitySecuritiesAmortizedCost	2505954000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2501300000	usd
CY2024Q2	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	22900000	usd
CY2023Q2	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	3200000	usd
CY2024	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-12300000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	7100000	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-18900000	usd
CY2024	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2024	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	5	segment
CY2024	us-gaap	Number Of Reporting Units NumberOfReportingUnits	6	reporting_unit
CY2022Q2	us-gaap	Goodwill Gross GoodwillGross	2854268000	usd
CY2022Q2	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	534219000	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 Gross GoodwillGross	2813039000	usd
CY2023Q2	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	534219000	usd
CY2023Q2	us-gaap	Goodwill Goodwill	2278820000	usd
CY2024	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	263074000	usd
CY2024	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	0	usd
CY2024	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-20000	usd
CY2024Q2	us-gaap	Goodwill Gross GoodwillGross	2507949000	usd
CY2024Q2	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	492223000	usd
CY2024Q2	us-gaap	Goodwill Goodwill	2015726000	usd
CY2023Q4	us-gaap	Number Of Reporting Units NumberOfReportingUnits	2	reporting_unit
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2113060000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1473537000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	639523000	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
CY2024Q2	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	2159134000	usd
CY2024Q2	klac	Intangible Assets Accumulated Amortization And Other Accumulated Adjustment IntangibleAssetsAccumulatedAmortizationAndOtherAccumulatedAdjustment	1490370000	usd
CY2024Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	668764000	usd
CY2023Q2	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	2159134000	usd
CY2023Q2	klac	Intangible Assets Accumulated Amortization And Other Accumulated Adjustment IntangibleAssetsAccumulatedAmortizationAndOtherAccumulatedAdjustment	1223831000	usd
CY2023Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	935303000	usd
CY2023Q4	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	26400000	usd
CY2023Q4	us-gaap	Asset Impairment Charges AssetImpairmentCharges	219000000.0	usd
CY2023	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2024	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2024	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	239272000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	260619000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	229098000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	218639000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	197846000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	125517000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	48849000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	34530000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	14142000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	639523000	usd
CY2024Q2	klac	Debt Long Term And Short Term Combined Amount Gross DebtLongTermAndShortTermCombinedAmountGross	6700000000	usd
CY2023Q2	klac	Debt Long Term And Short Term Combined Amount Gross DebtLongTermAndShortTermCombinedAmountGross	5950000000	usd
CY2024Q2	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	24866000	usd
CY2023Q2	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	17848000	usd
CY2024Q2	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	44999000	usd
CY2023Q2	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	41416000	usd
CY2024Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	6630135000	usd
CY2023Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	5890736000	usd
CY2024Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	749936000	usd
CY2023Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	usd
CY2024Q2	us-gaap	Long Term Debt LongTermDebt	5880199000	usd
CY2023Q2	us-gaap	Long Term Debt LongTermDebt	5890736000	usd
CY2024Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	6630135000	usd
CY2023Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	5890736000	usd
CY2024	us-gaap	Operating Lease Expense OperatingLeaseExpense	54600000	usd
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	41800000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	36600000	usd
CY2023Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y8M12D
CY2024Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y8M12D
CY2024Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0430
CY2023Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0336
CY2024	us-gaap	Operating Lease Payments OperatingLeasePayments	41405000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	47294000	usd
CY2024	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	62505000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	115377000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	43565000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	38395000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	30962000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	21694000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	18918000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	70637000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	224171000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	34663000	usd
CY2024Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	189508000	usd
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
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Other Share Increase Decrease ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherShareIncreaseDecrease	3250000	shares
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	849000	shares
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	78000	shares
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	10240000	shares
CY2024	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	212695000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	171424000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	126918000	usd
CY2024Q2	klac	Stock Based Compensation Capitalized As Inventory StockBasedCompensationCapitalizedAsInventory	21500000	usd
CY2023Q2	klac	Stock Based Compensation Capitalized As Inventory StockBasedCompensationCapitalizedAsInventory	16700000	usd
CY2024Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	1210000000	usd
CY2024	klac	Employee Stock Purchase Plan Offering Period EmployeeStockPurchasePlanOfferingPeriod	P6M
CY2024	klac	Employee Stock Purchase Plan Offering Period EmployeeStockPurchasePlanOfferingPeriod	P6M
CY2024Q2	klac	Espp Maximum Annual Share Replenishment ESPPMaximumAnnualShareReplenishment	2000000.0	shares
CY2024Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.45
CY2024	us-gaap	Payments Of Dividends PaymentsOfDividends	773000000.0	usd
CY2023	us-gaap	Payments Of Dividends PaymentsOfDividends	732600000	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
CY2023Q3	klac	Stock Repurchase Program Authorized Repurchase Amount Increase During Period StockRepurchaseProgramAuthorizedRepurchaseAmountIncreaseDuringPeriod	2000000000	usd
CY2022Q2	klac	Accelerated Share Repurchase Program Number Of Financial Institutions AcceleratedShareRepurchaseProgramNumberOfFinancialInstitutions	2	financial_institution
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
CY2024Q2	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	2180000000	usd
CY2022	us-gaap	Accelerated Share Repurchase Program Adjustment AcceleratedShareRepurchaseProgramAdjustment	900000000	usd
CY2024	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	3032000	shares
CY2023	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	5844000	shares
CY2022	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	11768000	shares
CY2024	klac	Treasury Stock Value Acquired Excluding Accelerated Share Repurchase Program Forward Contracts TreasuryStockValueAcquiredExcludingAcceleratedShareRepurchaseProgramForwardContracts	1742501000	usd
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
CY2024	us-gaap	Net Income Loss NetIncomeLoss	2761896000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	3387277000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	3321807000	usd
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	135345000	shares
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
CY2024	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	842000	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
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136187000	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
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	20.41
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	24.28
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	22.07
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	20.28
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	24.15
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	21.92
CY2024	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	35000	shares
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
CY2024	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	39400000	usd
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
CY2023Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	113136000	usd
CY2022Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	124585000	usd
CY2024	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	4494000	usd
CY2023	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	3807000	usd
CY2024	klac	Defined Benefit Plan Benefit Obligation Interest Cost DefinedBenefitPlanBenefitObligationInterestCost	2177000	usd
CY2023	klac	Defined Benefit Plan Benefit Obligation Interest Cost DefinedBenefitPlanBenefitObligationInterestCost	1689000	usd
CY2024	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	65000	usd
CY2023	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	70000	usd
CY2024	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	2341000	usd
CY2023	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	7686000	usd
CY2024	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	4752000	usd
CY2023	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	4837000	usd
CY2024	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	0	usd
CY2023	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	191000	usd
CY2024	us-gaap	Defined Benefit Plan Benefit Obligation Payment For Settlement DefinedBenefitPlanBenefitObligationPaymentForSettlement	1433000	usd
CY2023	us-gaap	Defined Benefit Plan Benefit Obligation Payment For Settlement DefinedBenefitPlanBenefitObligationPaymentForSettlement	931000	usd
CY2024	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	6101000	usd
CY2023	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	3752000	usd
CY2024Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	105245000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	113136000	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
CY2024	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	9514000	usd
CY2023	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	8396000	usd
CY2024	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-1863000	usd
CY2023	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-827000	usd
CY2024	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	1433000	usd
CY2023	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	931000	usd
CY2024	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	1542000	usd
CY2023	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	-1064000	usd
CY2024	klac	Defined Benefit Plan Benefits And Expenses Paid DefinedBenefitPlanBenefitsAndExpensesPaid	3295000	usd
CY2023	klac	Defined Benefit Plan Benefits And Expenses Paid DefinedBenefitPlanBenefitsAndExpensesPaid	3237000	usd
CY2024Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	50395000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	45930000	usd
CY2024Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-54850000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-67206000	usd
CY2024Q2	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	67349000	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
CY2024Q2	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	105245000	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
CY2024Q2	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	50395000	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
CY2024Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	10360000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	10733000	usd
CY2024Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-9662000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-12932000	usd
CY2024Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	20022000	usd
CY2023Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	23665000	usd
CY2024	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	4494000	usd
CY2023	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	3807000	usd
CY2022	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	5054000	usd
CY2024	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2177000	usd
CY2023	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1678000	usd
CY2022	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1003000	usd
CY2024	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	961000	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
CY2024	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	853000	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
CY2024	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-221000	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
CY2024	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	-68000	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
CY2024	klac	Defined Benefit Plan Net Periodic Benefit Cost Credit Foreign Currency Exchange Rate Changes DefinedBenefitPlanNetPeriodicBenefitCostCreditForeignCurrencyExchangeRateChanges	0	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
CY2024	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	6852000	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
CY2024Q2	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
CY2024Q2	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	2600000	usd
CY2024Q2	klac	Defined Benefit Plan Maximum Yearly Expected Future Benefit Payments DefinedBenefitPlanMaximumYearlyExpectedFutureBenefitPayments	6900000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1997090000	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
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1192942000	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
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3190032000	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
CY2024	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	395876000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	553197000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	341614000	usd
CY2024	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10737000	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
CY2024	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	160401000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	188991000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	165194000	usd
CY2024	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	567014000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	756992000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	520957000	usd
CY2024	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-110686000	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
CY2024	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2770000	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
CY2024	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-25422000	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
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-138878000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-355153000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-353780000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	428136000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	401839000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	167177000	usd
CY2024Q2	klac	Deferred Tax Assets Capitalized Research And Development Expenses DeferredTaxAssetsCapitalizedResearchAndDevelopmentExpenses	328061000	usd
CY2023Q2	klac	Deferred Tax Assets Capitalized Research And Development Expenses DeferredTaxAssetsCapitalizedResearchAndDevelopmentExpenses	201228000	usd
CY2024Q2	klac	Deferred Tax Assets Tax Credits And Net Operating Losses DeferredTaxAssetsTaxCreditsAndNetOperatingLosses	311026000	usd
CY2023Q2	klac	Deferred Tax Assets Tax Credits And Net Operating Losses DeferredTaxAssetsTaxCreditsAndNetOperatingLosses	271500000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	151371000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	73691000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	121238000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	103646000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	95461000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	92696000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	53668000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	52147000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	25532000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	16668000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	15375000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	12710000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	12785000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	35360000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1114517000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	859646000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	289534000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	259172000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	824983000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	600474000	usd
CY2024Q2	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	315231000	usd
CY2023Q2	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	279677000	usd
CY2024Q2	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	70204000	usd
CY2023Q2	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	23149000	usd
CY2024Q2	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	10949000	usd
CY2023Q2	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	9994000	usd
CY2024Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	396384000	usd
CY2023Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	312820000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	428599000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	287654000	usd
CY2024Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	289500000	usd
CY2023Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	259200000	usd
CY2024Q2	klac	Undistributed Earnings For Certain Foreign Subsidiaries UndistributedEarningsForCertainForeignSubsidiaries	185900000	usd
CY2024Q2	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability Undistributed Earnings Of Foreign Subsidiaries DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries	39000000	usd
CY2024	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
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
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	0.037
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
CY2024	klac	Effective Income Tax Rate Reconciliation Nondeductible Impairment Of Goodwill Percent EffectiveIncomeTaxRateReconciliationNondeductibleImpairmentOfGoodwillPercent	0.017
CY2023	klac	Effective Income Tax Rate Reconciliation Nondeductible Impairment Of Goodwill Percent EffectiveIncomeTaxRateReconciliationNondeductibleImpairmentOfGoodwillPercent	0
CY2022	klac	Effective Income Tax Rate Reconciliation Nondeductible Impairment Of Goodwill Percent EffectiveIncomeTaxRateReconciliationNondeductibleImpairmentOfGoodwillPercent	0
CY2024	klac	Effective Income Tax Rate Reconciliation Net Change In Tax Reserves Percent EffectiveIncomeTaxRateReconciliationNetChangeInTaxReservesPercent	0.011
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
CY2024	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.003
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
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges	0
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
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0
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
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.016
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
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0.059
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0.057
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0.040
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.066
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
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003
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
CY2024	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.134
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.106
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.048
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
CY2024	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	40209000	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
CY2024	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	23291000	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
CY2024	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	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
CY2024	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	26766000	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
CY2024	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4119000	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
CY2024Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	245707000	usd
CY2023Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	213092000	usd
CY2022Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	217927000	usd
CY2024Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	244600000	usd
CY2023Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	199000000.0	usd
CY2022Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	205000000.0	usd
CY2024	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	8300000	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
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	36503000	usd
CY2023Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	35712000	usd
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	15683000	usd
CY2023Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	12106000	usd
CY2024Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	41100000	usd
CY2023Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	32600000	usd
CY2024Q2	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	16500000	usd
CY2024	klac	Receivables Sold Under Factoring Agreements ReceivablesSoldUnderFactoringAgreements	254889000	usd
CY2023	klac	Receivables Sold Under Factoring Agreements ReceivablesSoldUnderFactoringAgreements	328933000	usd
CY2022	klac	Receivables Sold Under Factoring Agreements ReceivablesSoldUnderFactoringAgreements	250983000	usd
CY2024	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	22242000	usd
CY2023	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	69247000	usd
CY2022	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	151924000	usd
CY2024Q2	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	2170000000	usd
CY2024	klac	Outstanding Inventory Purchase Commitment OutstandingInventoryPurchaseCommitment	P12M
CY2024Q2	klac	Long Term Incentive Plan Committed Amount LongTermIncentivePlanCommittedAmount	143100000	usd
CY2024	klac	Guarantee Arrangements To Fund Guarantees To Customs Authorities Amount GuaranteeArrangementsToFundGuaranteesToCustomsAuthoritiesAmount	83900000	usd
CY2024	klac	Guarantee Arrangements To Fund Guarantees To Customs Authorities Amount Issued GuaranteeArrangementsToFundGuaranteesToCustomsAuthoritiesAmountIssued	49900000	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 Nonoperating InterestExpenseNonoperating	160339000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4605000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	10496056000	usd
CY2023	klac	Cost Of Revenue And Operating Expense CostOfRevenueAndOperatingExpense	6501360000	usd
CY2023	us-gaap	Interest Expense Nonoperating InterestExpenseNonoperating	296940000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	104720000	usd
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9812247000	usd
CY2024	klac	Cost Of Revenue And Operating Expense CostOfRevenueAndOperatingExpense	6466037000	usd
CY2024	us-gaap	Interest Expense Nonoperating InterestExpenseNonoperating	311253000	usd
CY2024	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	155075000	usd
CY2024	klac	Derivative Liability Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Consolidated Balance Sheets
CY2023	klac	Derivative Liability Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Consolidated Balance Sheets
CY2024	klac	Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeAssetStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Consolidated Balance Sheets
CY2023	klac	Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeAssetStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Consolidated Balance Sheets
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	36503000	usd
CY2024Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	usd
CY2024Q2	us-gaap	Derivative Assets DerivativeAssets	36503000	usd
CY2024Q2	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	15173000	usd
CY2024Q2	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	usd
CY2024Q2	us-gaap	Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	21330000	usd
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	15683000	usd
CY2024Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	usd
CY2024Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	15683000	usd
CY2024Q2	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	15173000	usd
CY2024Q2	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	usd
CY2024Q2	us-gaap	Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	510000	usd
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
CY2024	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	3100000	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
CY2024	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2024	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9812247000	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
CY2024	klac	Acquisition Related Charges Corporate Allocations And Effects Of Foreign Exchange Rates AcquisitionRelatedChargesCorporateAllocationsAndEffectsOfForeignExchangeRates	186998000	usd
CY2023	klac	Acquisition Related Charges Corporate Allocations And Effects Of Foreign Exchange Rates AcquisitionRelatedChargesCorporateAllocationsAndEffectsOfForeignExchangeRates	183017000	usd
CY2022	klac	Acquisition Related Charges Corporate Allocations And Effects Of Foreign Exchange Rates AcquisitionRelatedChargesCorporateAllocationsAndEffectsOfForeignExchangeRates	169721000	usd
CY2024	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1278981000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1296727000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1105254000	usd
CY2024	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	969509000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	986326000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	860007000	usd
CY2024	us-gaap	Asset Impairment Charges AssetImpairmentCharges	289474000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2024	us-gaap	Interest Expense Nonoperating InterestExpenseNonoperating	311253000	usd
CY2023	us-gaap	Interest Expense Nonoperating InterestExpenseNonoperating	296940000	usd
CY2022	us-gaap	Interest Expense Nonoperating InterestExpenseNonoperating	160339000	usd
CY2024	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	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
CY2024	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	155075000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	104720000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4605000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3190032000	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
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9812247000	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
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9812247000	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
CY2024Q2	us-gaap	Noncurrent Assets NoncurrentAssets	1109968000	usd
CY2023Q2	us-gaap	Noncurrent Assets NoncurrentAssets	1031841000	usd
CY2024	klac	Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag	Restructuring charges
CY2024	us-gaap	Restructuring Charges RestructuringCharges	21600000	usd
CY2023	us-gaap	Restructuring Charges RestructuringCharges	44000000	usd
CY2022	us-gaap	Restructuring Charges RestructuringCharges	1000000	usd
CY2024Q2	us-gaap	Restructuring Reserve RestructuringReserve	6500000	usd
CY2023Q2	us-gaap	Restructuring Reserve RestructuringReserve	11000000	usd
CY2024	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2024	dei	Auditor Location AuditorLocation	San Jose, California
CY2024Q2	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024Q2	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024Q2	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024	ecd	Insider Trd Policies Proc Adopted Flag InsiderTrdPoliciesProcAdoptedFlag	true
CY2024	dei	Auditor Firm AuditorFirmId	238

Files In Submission

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$KLAC
KLA CORP Stock $klac

2024 Q3 Form 10-K Financial Statement

#000031920124000021 Filed on August 05, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KLAC KLA CORP Stock $klac

2024 Q3 Form 10-K Financial Statement

#000031920124000021 Filed on August 05, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KLAC
KLA CORP Stock $klac