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Intangible Assets and Goodwill (Tables)

12 Months Ended

Mar. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets, Indefinite-Lived

Intangible assets consist of the following (in millions):

						March 31, 2022
						Gross Amount						Accumulated Amortization						Net Amount
Core and developed technology						$	7,390.2					$	(3,571.5)					$	3,818.7
Customer-related						200.3						(112.4)						87.9
In-process research and development						6.4						—						6.4
Software licenses						191.2						(61.2)						130.0
Distribution rights and other						0.4						(0.3)						0.1
Total						$	7,788.5					$	(3,745.4)					$	4,043.1

						March 31, 2021
						Gross Amount						Accumulated Amortization						Net Amount
Core and developed technology						$	7,371.3					$	(2,771.0)					$	4,600.3
Customer-related						835.2						(702.6)						132.6
In-process research and development						7.7						—						7.7
Software licenses						124.6						(70.9)						53.7
Distribution rights and other						5.6						(5.1)						0.5
Total						$	8,344.4					$	(3,549.6)					$	4,794.8

Schedule of Intangible Assets, Finite-Lived

Intangible assets consist of the following (in millions):

						March 31, 2022
						Gross Amount						Accumulated Amortization						Net Amount
Core and developed technology						$	7,390.2					$	(3,571.5)					$	3,818.7
Customer-related						200.3						(112.4)						87.9
In-process research and development						6.4						—						6.4
Software licenses						191.2						(61.2)						130.0
Distribution rights and other						0.4						(0.3)						0.1
Total						$	7,788.5					$	(3,745.4)					$	4,043.1

						March 31, 2021
						Gross Amount						Accumulated Amortization						Net Amount
Core and developed technology						$	7,371.3					$	(2,771.0)					$	4,600.3
Customer-related						835.2						(702.6)						132.6
In-process research and development						7.7						—						7.7
Software licenses						124.6						(70.9)						53.7
Distribution rights and other						5.6						(5.1)						0.5
Total						$	8,344.4					$	(3,549.6)					$	4,794.8

Schedule of Projected Amortization Expense

The following is an expected amortization schedule for the intangible assets for fiscal 2023 through fiscal 2027, absent any future acquisitions or impairment charges (in millions):

Fiscal Year Ending March 31,						Amortization Expense
2023						$	746.1
2024						$	667.1
2025						$	533.1
2026						$	462.6
2027						$	377.2

Schedule of Amortization Expense by Intangible Asset Class

Amortization expense attributed to intangible assets are assigned to cost of sales and operating expenses as follows (in millions):

			Fiscal Year Ended March 31,
			2022						2021						2020
Amortization expense charged to cost of sales			$	12.4					$	9.4					$	8.9
Amortization expense charged to operating expense			922.0						983.3						1,037.8
Total amortization expense			$	934.4					$	992.7					$	1,046.7

Schedule of Goodwill Activity

Goodwill activity by segment was as follows (in millions):

			Semiconductor Products Reporting Unit						Technology Licensing Reporting Unit
Balance at March 31, 2020			$	6,645.6					$	19.2
Additions			5.8						—
Balance at March 31, 2021			$	6,651.4					$	19.2
Additions			3.0						—
Balance at March 31, 2022			$	6,654.4					$	19.2

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