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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 | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 25, 2021 | Dec. 26, 2020 | Dec. 25, 2021 | Dec. 26, 2020
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Total | $ 36.6 | $ 23.4 | $ 72.2 | $ 44.9
Income tax benefit on share-based compensation | (11.4) | (5.4) | (16.7) | (9.0)
Phantom Stock Unit [Member] |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Total | 10.2 | 4.2 | 24.6 | 11.4
Cost of Revenue [Member] |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Total | 1.3 | 1.0 | 2.3 | 1.8
Cost of Revenue [Member] | Phantom Stock Unit [Member] |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Total | 0.1 | 0.1 | 0.1 | 0.2
Research and Development [Member] |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Total | 18.6 | 9.5 | 39.4 | 20.5
Research and Development [Member] | Phantom Stock Unit [Member] |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Total | 8.4 | 3.4 | 20.2 | 9.2
Selling, General, and Administrative [Member] |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Total | 16.7 | 12.9 | 30.5 | 22.6
Selling, General, and Administrative [Member] | Phantom Stock Unit [Member] |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Total | $ 1.7 | $ 0.7 | $ 4.3 | $ 2.0

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