DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Gains (Losses) on Derivatives in Cash Flow Hedging Relationships Recognized in OCI (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Derivative
Amounts included in the assessment of effectiveness	$ 12,405,000	$ 1,889,000	$ 15,769,000	$ 4,987,000
Foreign exchange contracts \| Cash Flow Hedging
Derivative
Amounts included in the assessment of effectiveness	12,394,000	1,703,000	15,694,000	5,147,000
Amounts excluded from the assessment of effectiveness	11,000	186,000	75,000	(160,000)
Foreign exchange contracts \| Net investment hedging
Derivative
Amounts excluded from the assessment of effectiveness	0	0	0	0
Gains (losses) on derivatives in net investment hedging recognized in OCI	$ 6,257,000	$ 8,712,000	$ 25,582,000	$ 1,713,000

Amount, before tax and adjustments, of gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method.

KLA CORP 10-Q