Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

The gross carrying amount and accumulated amortization of intangible assets were comprised of the following at the end of each period:

	December 31, 2021				December 25, 2020
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortizable:
Completed technology	$	10,404.0	$	5,160.4	$	10,394.6	$	4,586.6
License agreements	120.1		82.1		120.1		78.1
Trademarks	77.7		26.9		77.7		23.5
Total	$	10,601.8	$	5,269.4	$	10,592.4	$	4,688.2
Non-Amortizable:
Trademarks	$	35.0			$	35.0
In-process research and development	81.0				245.3
Total	$	116.0			$	280.3

Finite-lived Intangible Assets Amortization Expense

Intangible asset amortization expense was as follows:

	Fiscal Year
	2021		2020		2019
Amortization expense	$	581.1	$	771.2	$	853.4

Schedule of Future Amortization Expense, Intangible Assets

The estimated aggregate amortization expense on intangible assets owned by the Company and being amortized as of December 31, 2021, is expected to be as follows:

Fiscal 2022	$	605.3
Fiscal 2023	585.1
Fiscal 2024	564.8
Fiscal 2025	543.1
Fiscal 2026	517.2