Operating Segments and Geographic Information - Schedule of Information on Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 29, 2024	Mar. 30, 2024	Jun. 29, 2024	Jul. 01, 2023	Jul. 02, 2022
Information on reportable segments
Net revenue			$ 1,359.2	$ 1,767.0	$ 1,712.6
Gross profit			251.5	569.0	788.6
Stock-based compensation			(128.8)	(148.4)	(103.1)
Amortization of acquired intangibles			(150.6)	(127.7)	(85.5)
Restructuring and related charges	$ (35.8)	$ (36.8)	(72.6)	(28.1)	1.1
Interest expense			(33.8)	(35.5)	(80.2)
Other income, net			62.1	48.8	12.0
Consolidated Income (loss) before income taxes			(405.7)	(102.4)	235.1
Excess and obsolete inventory				2.7
Gain recognized on disposition of land and building			(2.6)	(8.6)	3.0
Income on short-term investments and cash equivalents				40.8	6.1
Foreign exchange gains, net				7.0	6.1
Other income (losses), net				1.0	(0.2)
Discontinued Operations, Disposed of by Sale | Manufacturing Site | Equipment
Information on reportable segments
Gain recognized on disposition of land and building					5.9
Operating Segments
Information on reportable segments
Net revenue			1,359.2	1,767.0	1,712.6
Gross profit			149.6	465.9	640.4
Operating Segments | Cloud & Networking
Information on reportable segments
Net revenue			1,084.9	1,322.5	1,008.7
Gross profit			124.5	313.2	266.9
Operating Segments | Industrial Tech
Information on reportable segments
Net revenue			274.3	444.5	703.9
Gross profit			25.1	152.7	373.5
Corporate, Non-Segment
Information on reportable segments
Selling, general and administrative			(111.8)	(126.7)	(113.4)
Stock-based compensation			(128.8)	(136.5)	(103.1)
Stock-based compensation - acquisition related			0.0	(11.9)	0.0
Amortization of acquired intangibles			(150.6)	(127.7)	(85.5)
Amortization of acquired inventory fair value adjustments			(8.3)	(17.8)	0.0
Acquisition related costs			(13.3)	(11.5)	0.0
Integration related costs			(37.1)	(28.6)	0.0
Restructuring and related charges			(72.6)	(28.1)	1.1
Abnormal excess capacity			(20.7)	0.0	0.0
Litigation matters			0.0	(7.8)	0.0
Intangible asset write-off			0.0	(21.3)	0.0
Other charges, net			(40.4)	(63.7)	(36.2)
Interest expense			(33.8)	(35.5)	(80.2)
Other income, net			62.1	48.8	12.0
Consolidated Income (loss) before income taxes			(405.7)	(102.4)	235.1
Excess and obsolete inventory			11.2	5.4
Legal and professional fees			12.4	12.5	9.4
Incremental cost of sales			4.9	32.5
Contract termination fee			3.4
Supply chain constraints					14.0
Acquisition cost expensed					8.4
Income on short-term investments and cash equivalents			61.3	40.8	6.1
Foreign exchange gains, net			0.8	7.0	6.1
Other income (losses), net			$ 0.0	$ 1.0	$ (0.2)