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

Quarterly report pursuant to Section 13 or 15(d)

Debt - Senior Notes (Details)

Debt - Senior Notes (Details) - USD ($)		3 Months Ended			9 Months Ended
Debt - Senior Notes (Details) - USD ($)	Nov. 19, 2014	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2016	Mar. 31, 2015	Jun. 30, 2015	Nov. 30, 2014	Oct. 31, 2014
Debt Instrument
Cash dividends declared (in dollars per share)		$ 0.52	$ 0.50		$ 1.56	$ 18
Discount on debt		$ 3,415,000			$ 3,415,000		$ 3,723,000
2018 Senior Notes \| Senior notes \| Treasury lock \| Derivatives Not Designated as Hedging Instruments
Debt Instrument
Notional amount of derivative								$ 750,000,000
Portion of senior notes \| Cash flow hedging \| Senior notes \| Treasury lock \| Derivatives designated as hedging instruments
Debt Instrument
Notional amount of derivative									$ 1,000,000,000.00
Special cash dividend
Debt Instrument
Cash dividends declared (in dollars per share)	$ 16.50			$ 16.50
Cash dividends				$ 2,760,000,000
Senior notes
Debt Instrument
Principal amount								2,500,000,000.0
Discount on debt								$ 4,000,000
Debt frequency of payment					semi-annually
Offer to repurchase senior notes, percent of principal amount (as a percent)					101.00%
Fair value		$ 2,560,000,000			$ 2,560,000,000		$ 2,520,000,000
Senior notes \| Standard & Poor's, BBplus Rating
Debt Instrument
Decrease in credit rating, interest rate increase (in bps)					0.25%
Senior notes \| Standard & Poor's, BB Rating
Debt Instrument
Decrease in credit rating, interest rate increase (in bps)					0.50%
Senior notes \| Standard & Poor's, BB- Rating
Debt Instrument
Decrease in credit rating, interest rate increase (in bps)					0.75%
Senior notes \| Standard & Poor's, B Plus or Below
Debt Instrument
Decrease in credit rating, interest rate increase (in bps)					1.00%
Senior notes \| Moody's, Ba1 Rating
Debt Instrument
Decrease in credit rating, interest rate increase (in bps)					0.25%
Senior notes \| Moody's, Ba2 Rating
Debt Instrument
Decrease in credit rating, interest rate increase (in bps)					0.50%
Senior notes \| Moody's, Ba3 Rating
Debt Instrument
Decrease in credit rating, interest rate increase (in bps)					0.75%
Senior notes \| Moody's, B1 Rating
Debt Instrument
Decrease in credit rating, interest rate increase (in bps)					1.00%