CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Balance at the beginning of the period (in shares) at Jul. 01, 2023		221,500,000
Balance at the beginning of the period at Jul. 01, 2023	$ 690.8	$ 0.2	$ 70,427.3	$ (69,600.7)	$ (136.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20.5			20.5
Other comprehensive income (loss)	9.2				9.2
Shares issued under employee stock plans, net of tax (in shares)		2,100,000
Shares issued under employee stock plans, net of tax	(6.3)		(6.3)
Stock-based compensation	23.8		23.8
Repurchase of common stock (in shares)		(1,000,000.0)
Repurchase of common stock	(10.0)			(10.0)
Balance at the end of the period (in shares) at Dec. 30, 2023		222,600,000
Balance at the end of the period at Dec. 30, 2023	728.0	$ 0.2	70,444.8	(69,590.2)	(126.8)
Balance at the beginning of the period (in shares) at Sep. 30, 2023		222,400,000
Balance at the beginning of the period at Sep. 30, 2023	675.2	$ 0.2	70,432.4	(69,600.9)	(156.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	10.7			10.7
Other comprehensive income (loss)	29.7				29.7
Shares issued under employee stock plans, net of tax (in shares)		200,000
Shares issued under employee stock plans, net of tax	(0.2)		(0.2)
Stock-based compensation	12.6		12.6
Balance at the end of the period (in shares) at Dec. 30, 2023		222,600,000
Balance at the end of the period at Dec. 30, 2023	$ 728.0	$ 0.2	70,444.8	(69,590.2)	(126.8)
Balance at the beginning of the period (in shares) at Jun. 29, 2024	222,000,000	221,900,000
Balance at the beginning of the period at Jun. 29, 2024	$ 681.6	$ 0.2	70,471.9	(69,646.5)	(144.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7.3			7.3
Other comprehensive income (loss)	(10.8)				(10.8)
Shares issued under employee stock plans, net of tax (in shares)		2,200,000
Shares issued under employee stock plans, net of tax	(5.6)		(5.6)
Stock-based compensation	26.4		26.4
Repurchase of common stock (in shares)		(2,000,000.0)
Repurchase of common stock	$ (16.1)		0.3	(16.4)
Balance at the end of the period (in shares) at Dec. 28, 2024	222,000,000	222,100,000
Balance at the end of the period at Dec. 28, 2024	$ 682.8	$ 0.2	70,493.0	(69,655.6)	(154.8)
Balance at the beginning of the period (in shares) at Sep. 28, 2024		221,800,000
Balance at the beginning of the period at Sep. 28, 2024	702.1	$ 0.2	70,480.2	(69,664.7)	(113.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9.1			9.1
Other comprehensive income (loss)	(41.2)				(41.2)
Shares issued under employee stock plans, net of tax (in shares)		300,000
Shares issued under employee stock plans, net of tax	(0.9)		(0.9)
Stock-based compensation	$ 13.7		13.7
Balance at the end of the period (in shares) at Dec. 28, 2024	222,000,000	222,100,000
Balance at the end of the period at Dec. 28, 2024	$ 682.8	$ 0.2	$ 70,493.0	$ (69,655.6)	$ (154.8)