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Share-Based Compensation - Share-Based Compensation, Cash-Based Awards and Related Tax Benefit Recognized in Condensed Consolidated Statements of Operations (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 26, 2021	Jun. 27, 2020	Jun. 29, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total	$ 93.1	$ 60.4	$ 59.0
Income tax benefit on share-based compensation	15.2	6.3	4.3
Phantom Stock Unit [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total	27.0	11.1
Cost of Revenue [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total	3.4	2.1	3.1
Cost of Revenue [Member] | Phantom Stock Unit [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total	0.4	0.2
Research and Development [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total	45.4	32.3	33.7
Research and Development [Member] | Phantom Stock Unit [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total	21.9	9.1
Selling, General, and Administrative [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total	44.3	26.0	$ 22.2
Selling, General, and Administrative [Member] | Phantom Stock Unit [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total	$ 4.7	$ 1.8

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- Definition

Employee service share based compensation tax benefit (expense) from compensation expense.

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
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-SubTopic 10
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