KLA Corporation Quarterly report [Sections 13 or 15(d)]

COMMITMENTS AND CONTINGENCIES - Additional Information (Details) $ in Millions	1 Months Ended	9 Months Ended
	Jan. 31, 2025	Mar. 31, 2025 USD ($) installment
Commitments and Contingencies
Purchase commitments		$ 2,380.0
Majority outstanding purchase commitment, period due (in months)		12 months
Cash-based long-term incentive plan, committed amount		$ 135.3
Guarantee arrangements to fund customs guarantees for VAT and other operating requirements		107.6
Outstanding guarantee arrangements to fund customs authorities for VAT and other operating requirements		$ 71.1
Goals for renewable electricity across global operations by 2030	100.00%
Reduction of scope 1 and 2 emissions from 2021 baseline by 2030	50.00%
Minimum \| Cash LTI Plan
Commitments and Contingencies
Cash long-term incentive plan, equal vesting installments \| installment		3
Cash long-term incentive plan, percentage of equal vesting installments		33.33%
Cash long-term incentive plan, vesting period		3 years
Maximum \| Cash LTI Plan
Commitments and Contingencies
Cash long-term incentive plan, equal vesting installments \| installment		4
Cash long-term incentive plan, percentage of equal vesting installments		25.00%
Cash long-term incentive plan, vesting period		4 years