KLA Corporation Quarterly report pursuant to Section 13 or 15(d)

$ 1,925,902

$ 2,173,068

150

1,707

(3,416)

(697)

Less: Cash equivalents, Amortized Cost

1,922,636

2,174,078

Add: Time deposits

^[1]

67,733

29,941

635,535

654,933

Less: Cash equivalents, Gross Unrealized Gains

Less: Cash equivalents, Gross Unrealized Losses

(3)

Less: Cash equivalents, Fair Value

635,535

654,933

Marketable securities, Amortized Cost

1,358,100

1,548,076

Marketable securities, Gross Unrealized Gains

147

1,707

Marketable securities, Gross Unrealized Losses

(3,413)

(697)

Marketable securities, Fair Value

1,354,834

1,549,086

U.S. Treasury securities

274,142

274,965

605

(630)

(15)

U.S. Government agency securities

273,524

275,555

404,990

571,843

551

(745)

(126)

404,316

572,268

Municipal securities

7,719

31,819

(4)

(10)

Corporate debt securities

7,717

31,816

707,685

625,965

511

(1,993)

(515)

705,753

625,961

Money market and other

470,811

611,385

470,811

611,385

Sovereign securities

60,555

57,091

(44)

(31)

Corporate and government securities

$ 60,515

$ 57,093

Maturity term

3 years

[1]	Time deposits excluded from fair value measurements.

Available For Sale Securities Amortized Cost and Cash Equivalents.

No definition available.

Name:	klac_AvailableForSaleSecuritiesAndCashEquivalentsAmortizedCost
Namespace Prefix:	klac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Available For Sale Securities and Cash Equivalents Fair Value Disclosure

No definition available.

Name:	klac_AvailableForSaleSecuritiesAndCashEquivalentsFairValueDisclosure
Namespace Prefix:	klac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Available-for-sale Securities & Cash Equivalents Gross Unrealized Gains

No definition available.

Name:	klac_AvailableForSaleSecuritiesCashEquivalentsGrossUnrealizedGains
Namespace Prefix:	klac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Available For Sale Securities & Cash Equivalents Gross Unrealized Loss

No definition available.

Name:	klac_AvailableForSaleSecuritiesCashEquivalentsGrossUnrealizedLoss
Namespace Prefix:	klac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Available-for-Sale Securities, Maturity Term

No definition available.

Name:	klac_AvailableforSaleSecuritiesMaturityTerm
Namespace Prefix:	klac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Cash Equivalent Gross Unrealized Loss

No definition available.

Name:	klac_CashEquivalentGrossUnrealizedLoss
Namespace Prefix:	klac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Cash Equivalents Gross Unrealized Gains

No definition available.

Name:	klac_CashEquivalentsGrossUnrealizedGains
Namespace Prefix:	klac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Cash Equivalents Net Of Unrealized Gains And Losses

No definition available.

Name:	klac_CashEquivalentsNetOfUnrealizedGainsAndLosses
Namespace Prefix:	klac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562

Name:	us-gaap_AvailableForSaleSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563

Name:	us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563

Name:	us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

Name:	us-gaap_AvailableForSaleSecuritiesAmortizedCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash Equivalents
-URI http://asc.fasb.org/extlink&oid=6507016

Name:	us-gaap_CashEquivalentsAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.2)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6476743&loc=d3e59706-112781

Name:	us-gaap_InterestBearingDepositsInBanks
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_MunicipalBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=klac_MoneyMarketBankDepositsAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_SovereignDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: