Goodwill and Intangible Assets - Schedule Of Intangible Assets (Details) - USD ($) $ in Millions	Sep. 26, 2025	Dec. 27, 2024
Schedule of Intangible Asset by Major Class [Line Items]
Amortizable, gross carrying value	$ 2,693.2	$ 495.2
Accumulated Amortization	(149.8)	(75.8)
Amortizable intangibles assets, net	2,543.4	419.4
Intangible assets, net	2,710.2	495.2
Net Book Value	2,560.4	419.4
In-process research and development
Schedule of Intangible Asset by Major Class [Line Items]
Non-Amortizable, gross carrying value	17.0	0.0
Completed technology
Schedule of Intangible Asset by Major Class [Line Items]
Amortizable, gross carrying value	2,659.2	495.2
Accumulated Amortization	(147.9)	(75.8)
Amortizable intangibles assets, net	2,511.3	419.4
License agreements
Schedule of Intangible Asset by Major Class [Line Items]
Amortizable, gross carrying value	34.0	0.0
Accumulated Amortization	(1.9)	0.0
Amortizable intangibles assets, net	$ 32.1	$ 0.0