Commitments and Contingencies (Details) - USD ($) $ in Millions	Jun. 27, 2025	Sep. 27, 2024
Recorded Unconditional Purchase Obligation [Line Items]
Prepaid expenses, current	$ 198.4	$ 234.8
Wafer Purchases
Recorded Unconditional Purchase Obligation [Line Items]
Deposits assets	90.4	167.8
Prepaid expenses	90.4	167.8
Deposits assets, current	69.4	144.7
Prepaid expenses, current	69.4	144.7
Deposits assets, noncurrent	21.0	23.1
Prepaid expenses, noncurrent	$ 21.0	$ 23.1

Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment in the future.

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