v3.25.4

Long-term Debt - Schedule of Long-term Debt (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Dec. 28, 2025 | Dec. 22, 2025 | Sep. 29, 2025 | Dec. 28, 2025 | Sep. 29, 2025 | Dec. 28, 2025 | Dec. 29, 2024 | Jun. 29, 2025
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Initial Principal | $ 2,090.6 |  |  | $ 2,090.6 |  | $ 2,090.6 |  | $ 6,325.0
Repayment of principal |  |  |  |  |  | (164.8) |  | 0.0
Conversion to common stock |  |  |  |  |  | (18.5) |  | 0.0
Outstanding principal | 1,907.3 |  |  | 1,907.3 |  | 1,907.3 |  | 6,658.2
Embedded derivative on New 2L Renesas Convertible Notes | 103.5 |  |  | 103.5 |  | 103.5 |  |
Unamortized premium/discount | (47.1) |  |  | (47.1) |  | (47.1) |  | (120.2)
Ending Balance | 1,963.7 |  |  | 1,963.7 |  | 1,963.7 |  | 6,538.0
Equity component | 159.3 |  |  | 159.3 |  | 159.3 |  | 0.0
Fair Value | $ 1,984.1 |  |  | 1,984.1 |  | $ 1,984.1 |  | $ 2,647.3
Repayments of senior debt |  |  |  | 0.0 | $ 308.5 |  | $ 0.0 |
Paid-in-kind interest on long-term debt |  |  |  | $ 10.8 | $ 0.0 |  | $ 5.9 |
Substantial premium on 2L Convertible Notes |  |  | $ 168.8 |  |  |  |  |
Additional Paid-in Capital |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Substantial premium on 2L Convertible Notes |  |  | $ 168.8 |  |  |  |  |
Convertible Notes | 1.75% Convertible Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 1.75% |  |  | 1.75% |  | 1.75% |  | 1.75%
Effective interest rate (as a percent) |  |  |  |  |  |  |  | 2.20%
Initial Principal |  |  |  |  |  |  |  | $ 575.0
Repayment of principal |  |  |  |  |  |  |  | 0.0
Conversion to common stock |  |  |  |  |  |  |  | 0.0
Outstanding principal |  |  |  |  |  |  |  | 575.0
Unamortized premium/discount |  |  |  |  |  |  |  | (2.0)
Ending Balance |  |  |  |  |  |  |  | 573.0
Equity component |  |  |  |  |  |  |  | 0.0
Fair Value |  |  |  |  |  |  |  | $ 145.2
Convertible Notes | 0.25% Convertible Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 0.25% |  |  | 0.25% |  | 0.25% |  | 0.25%
Effective interest rate (as a percent) |  |  |  |  |  |  |  | 0.60%
Initial Principal |  |  |  |  |  |  |  | $ 750.0
Repayment of principal |  |  |  |  |  |  |  | 0.0
Conversion to common stock |  |  |  |  |  |  |  | 0.0
Outstanding principal |  |  |  |  |  |  |  | 750.0
Unamortized premium/discount |  |  |  |  |  |  |  | (7.9)
Ending Balance |  |  |  |  |  |  |  | 742.1
Equity component |  |  |  |  |  |  |  | 0.0
Fair Value |  |  |  |  |  |  |  | $ 186.6
Convertible Notes | 1.875% Convertible Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 1.875% |  |  | 1.875% |  | 1.875% |  | 1.875%
Effective interest rate (as a percent) |  |  |  |  |  |  |  | 2.10%
Initial Principal |  |  |  |  |  |  |  | $ 1,750.0
Repayment of principal |  |  |  |  |  |  |  | 0.0
Conversion to common stock |  |  |  |  |  |  |  | 0.0
Outstanding principal |  |  |  |  |  |  |  | 1,750.0
Unamortized premium/discount |  |  |  |  |  |  |  | (20.7)
Ending Balance |  |  |  |  |  |  |  | 1,729.3
Equity component |  |  |  |  |  |  |  | 0.0
Fair Value |  |  |  |  |  |  |  | $ 450.6
Convertible Notes | New 2L Non-Renesas Convertible Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  |  | 2.50% |  | 2.50% |  |  |
Effective interest rate (as a percent) | 3.00% |  |  | 3.00% |  | 3.00% |  |
Initial Principal | $ 331.4 |  |  | $ 331.4 |  | $ 331.4 |  |
Repayment of principal |  |  |  |  |  | 0.0 |  |
Conversion to common stock | (18.5) |  |  |  |  | (18.5) |  |
Outstanding principal | 312.9 |  |  | 312.9 |  | 312.9 |  |
Embedded derivative on New 2L Renesas Convertible Notes | 0.0 |  |  | 0.0 |  | 0.0 |  |
Unamortized premium/discount | (7.2) |  |  | (7.2) |  | (7.2) |  |
Ending Balance | 305.7 |  |  | 305.7 |  | 305.7 |  |
Equity component | 159.3 |  |  | 159.3 |  | 159.3 |  |
Fair Value | $ 493.6 |  |  | $ 493.6 |  | $ 493.6 |  |
Debt instrument, convertible, conversion price (in USD per share) |  |  | $ 12.23 |  | $ 12.23 |  |  |
Debt conversion, converted instrument, shares issued (in shares) | 1,500,000 |  |  |  |  |  |  |
Convertible Notes | New 2L Renesas Convertible Notes(5) |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  |  | 2.50% |  | 2.50% |  |  |
Effective interest rate (as a percent) | 12.30% |  |  | 12.30% |  | 12.30% |  |
Initial Principal | $ 203.6 |  |  | $ 203.6 |  | $ 203.6 |  |
Repayment of principal |  |  |  |  |  | 0.0 |  |
Conversion to common stock |  |  |  |  |  | 0.0 |  |
Outstanding principal | 203.6 |  |  | 203.6 |  | 203.6 |  |
Embedded derivative on New 2L Renesas Convertible Notes | 103.5 |  |  | 103.5 |  | 103.5 |  |
Unamortized premium/discount | (79.3) |  |  | (79.3) |  | (79.3) |  |
Ending Balance | 227.8 |  |  | 227.8 |  | 227.8 |  |
Equity component | 0.0 |  |  | 0.0 |  | 0.0 |  |
Fair Value | $ 215.8 |  |  | $ 215.8 |  | $ 215.8 |  |
Debt instrument, convertible, conversion price (in USD per share) |  |  | $ 18.35 |  | $ 18.35 |  |  |
Convertible Notes | 2L Convertible Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Percentage of equity component not related to outstanding debt due to conversions | 5.60% |  |  | 5.60% |  | 5.60% |  |
Senior Notes | 2030 Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  | 16.30%
Initial Principal |  |  |  |  |  |  |  | $ 1,250.0
Repayment of principal |  |  |  |  |  |  |  | 0.0
Conversion to common stock |  |  |  |  |  |  |  | 0.0
Outstanding principal |  |  |  |  |  |  |  | 1,521.2
Unamortized premium/discount |  |  |  |  |  |  |  | (52.3)
Ending Balance |  |  |  |  |  |  |  | 1,468.9
Equity component |  |  |  |  |  |  |  | 0.0
Fair Value |  |  |  |  |  |  |  | $ 1,308.2
Senior Notes | New Senior Secured Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Effective interest rate (as a percent) | 12.90% |  |  | 12.90% |  | 12.90% |  |
Initial Principal | $ 1,259.2 |  |  | $ 1,259.2 |  | $ 1,259.2 |  |
Repayment of principal |  |  |  |  |  | (164.8) |  |
Conversion to common stock |  |  |  |  |  | 0.0 |  |
Outstanding principal | 1,094.4 |  |  | 1,094.4 |  | 1,094.4 |  |
Embedded derivative on New 2L Renesas Convertible Notes | 0.0 |  |  | 0.0 |  | 0.0 |  |
Unamortized premium/discount | 104.2 |  |  | 104.2 |  | 104.2 |  |
Ending Balance | 1,198.6 |  |  | 1,198.6 |  | 1,198.6 |  |
Equity component | 0.0 |  |  | 0.0 |  | 0.0 |  |
Fair Value | $ 1,034.2 |  |  | $ 1,034.2 |  | $ 1,034.2 |  |
Debt instrument, repurchased face amount |  | $ 175.0 |  |  |  |  |  |
Repayments of senior debt |  | 197.9 |  |  |  |  |  |
Paid-in-kind interest on long-term debt |  | $ 10.2 |  |  |  |  |  |
Senior Notes | New 2L Non-Convertible Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Effective interest rate (as a percent) | 12.50% |  | 7.00% | 12.50% | 7.00% | 12.50% |  |
Initial Principal | $ 296.4 |  |  | $ 296.4 |  | $ 296.4 |  |
Repayment of principal |  |  |  |  |  | 0.0 |  |
Conversion to common stock |  |  |  |  |  | 0.0 |  |
Outstanding principal | 296.4 |  |  | 296.4 |  | 296.4 |  |
Embedded derivative on New 2L Renesas Convertible Notes | 0.0 |  |  | 0.0 |  | 0.0 |  |
Unamortized premium/discount | (64.8) |  |  | (64.8) |  | (64.8) |  |
Ending Balance | 231.6 |  |  | 231.6 |  | 231.6 |  |
Equity component | 0.0 |  |  | 0.0 |  | 0.0 |  |
Fair Value | $ 240.5 |  |  | $ 240.5 |  | $ 240.5 |  |
Unsecured Debt | CRD Agreement Deposits |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  | 6.80%
Initial Principal |  |  |  |  |  |  |  | $ 2,000.0
Repayment of principal |  |  |  |  |  |  |  | 0.0
Conversion to common stock |  |  |  |  |  |  |  | 0.0
Outstanding principal |  |  |  |  |  |  |  | 2,062.0
Unamortized premium/discount |  |  |  |  |  |  |  | (37.3)
Ending Balance |  |  |  |  |  |  |  | 2,024.7
Equity component |  |  |  |  |  |  |  | 0.0
Fair Value |  |  |  |  |  |  |  | $ 556.7

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