KLA Corporation Annual report pursuant to Section 13 and 15(d)

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Equity Incentive Plans General Information (Details)

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Equity Incentive Plans General Information (Details) shares in Thousands	12 Months Ended
	Jun. 30, 2024 shares	Jun. 30, 2023 shares	Jun. 30, 2022 shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance as of beginning of period (in shares)	7,761	9,242	10,253
Plan shares increased (in shares)	3,250
RSUs granted (in shares)	(849)	(1,601)	(1,152)
RSUs granted adjustment (in shares)			39
RSUs canceled (in shares)	78	120	102
Balance as of end of period (in shares)	10,240	7,761	9,242
Maximum number of shares available for grant (in shares)	10,240	7,761	9,242
RSUs, performance-based and service-based \| Senior Management
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance as of beginning of period (in shares)	600	200
Balance as of end of period (in shares)	200	600	200
Maximum number of shares available for grant (in shares)	200	600	200
RSUs, market-based and service-based \| Third anniversary
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Award vesting percentage	33.3333%
RSUs, market-based and service-based \| Fourth anniversary
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Award vesting percentage	33.3333%
RSUs, market-based and service-based \| Fifth anniversary
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Award vesting percentage	33.3333%
Restricted stock units
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Expected stock price volatility, minimum	27.80%
Expected stock price volatility, maximum	28.10%
Risk-free interest rate, minimum	2.30%
Risk-free interest rate, maximum	2.40%
Restricted stock units \| Third anniversary
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Service period	3 years
Restricted stock units \| Fourth anniversary
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Service period	4 years
Restricted stock units \| Fifth anniversary
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Service period	5 years
Restricted stock units \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Dividend yield	2.40%
Restricted stock units \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Dividend yield	2.50%
2004 Plan
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Impact on share reserve multiplier	2.0
2004 Plan \| RSUs, performance-based and service-based
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance as of end of period (in shares)	100
Maximum number of shares available for grant (in shares)	100
2004 Plan \| Restricted stock units
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
RSUs granted (in shares)	(424)
RSUs canceled (in shares)	39
2023 Plan
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Impact on share reserve multiplier	2.0
2023 Plan \| RSUs, performance-based and service-based
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance as of end of period (in shares)	100
Maximum number of shares available for grant (in shares)	100
2023 Plan \| Restricted stock units
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
RSUs granted (in shares)	(424)
RSUs canceled (in shares)	39