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Basis of Presentation and New Accounting Standards - Narrative (Details) - USD ($) $ in Millions | Sep. 25, 2022 | Jun. 27, 2022 | Jun. 26, 2022 | Sep. 26, 2021 | Jun. 27, 2021
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Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |
Stockholders' Equity Attributable to Parent | $ (2,109.6) |  | $ (2,439.3) | $ (2,039.4) | $ (2,116.5)
Convertible notes, net | 1,300.8 |  | 1,021.6 |  |
Property and equipment, net | (1,529.5) |  | (1,481.1) |  |
Additional Paid-in Capital |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |
Stockholders' Equity Attributable to Parent | (3,902.2) |  | (4,228.4) | (3,670.6) | (3,676.8)
Accumulated Deficit |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |
Stockholders' Equity Attributable to Parent | $ 1,760.5 |  | 1,764.0 | $ 1,633.2 | $ 1,563.1
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |
Stockholders' Equity Attributable to Parent |  |  | 303.3 |  |
Cumulative Effect, Period of Adoption, Adjustment | Additional Paid-in Capital |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |
Stockholders' Equity Attributable to Parent |  |  | 333.0 |  |
Cumulative Effect, Period of Adoption, Adjustment | Accumulated Deficit |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |
Stockholders' Equity Attributable to Parent |  |  | (29.7) |  |
Cumulative Effect, Period of Adoption, Adjustment | Adoption of ASU 2020-06 |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |
Convertible notes, net |  | $ 277.9 |  |  |
Property and equipment, net |  | $ 25.4 |  |  |
Cumulative Effect, Period of Adoption, Adjustment | Adoption of ASU 2020-06 | Additional Paid-in Capital |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |
Stockholders' Equity Attributable to Parent |  |  | 333.0 |  |
Cumulative Effect, Period of Adoption, Adjustment | Adoption of ASU 2020-06 | Accumulated Deficit |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |
Stockholders' Equity Attributable to Parent |  |  | $ 29.7 |  |

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