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Intangible Assets and Goodwill (Tables) | 6 Months Ended
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Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets, Indefinite-Lived | Net amounts excluding fully amortized intangible assets, consist of the following (in millions):
|  | September 30, 2023
|  | Gross Amount |  | Accumulated Amortization |  | Net Amount
Core and developed technology |  | $ | 7,285.0 |  |  | $ | (4,371.9) |  |  | $ | 2,913.1 |
Customer-related |  | 196.7 |  |  | (132.8) |  |  | 63.9 |
Software licenses |  | 219.1 |  |  | (107.3) |  |  | 111.8 |
Total |  | $ | 7,700.8 |  |  | $ | (4,612.0) |  |  | $ | 3,088.8 |
|  | March 31, 2023
|  | Gross Amount |  | Accumulated Amortization |  | Net Amount
Core and developed technology |  | $ | 7,296.2 |  |  | $ | (4,103.4) |  |  | $ | 3,192.8 |
Customer-related |  | 199.8 |  |  | (128.0) |  |  | 71.8 |
In-process research and development |  | 5.7 |  |  | — |  |  | 5.7 |
Software licenses |  | 211.7 |  |  | (113.0) |  |  | 98.7 |
Distribution rights and other |  | 0.3 |  |  | (0.3) |  |  | — |
Total |  | $ | 7,713.7 |  |  | $ | (4,344.7) |  |  | $ | 3,369.0 |
Schedule of Intangible Assets, Finite-Lived | Net amounts excluding fully amortized intangible assets, consist of the following (in millions):
|  | September 30, 2023
|  | Gross Amount |  | Accumulated Amortization |  | Net Amount
Core and developed technology |  | $ | 7,285.0 |  |  | $ | (4,371.9) |  |  | $ | 2,913.1 |
Customer-related |  | 196.7 |  |  | (132.8) |  |  | 63.9 |
Software licenses |  | 219.1 |  |  | (107.3) |  |  | 111.8 |
Total |  | $ | 7,700.8 |  |  | $ | (4,612.0) |  |  | $ | 3,088.8 |
|  | March 31, 2023
|  | Gross Amount |  | Accumulated Amortization |  | Net Amount
Core and developed technology |  | $ | 7,296.2 |  |  | $ | (4,103.4) |  |  | $ | 3,192.8 |
Customer-related |  | 199.8 |  |  | (128.0) |  |  | 71.8 |
In-process research and development |  | 5.7 |  |  | — |  |  | 5.7 |
Software licenses |  | 211.7 |  |  | (113.0) |  |  | 98.7 |
Distribution rights and other |  | 0.3 |  |  | (0.3) |  |  | — |
Total |  | $ | 7,713.7 |  |  | $ | (4,344.7) |  |  | $ | 3,369.0 |
Schedule of Projected Amortization Expense | The following is an expected amortization schedule for the intangible assets for the remainder of fiscal 2024 through fiscal 2028, absent any future acquisitions or impairment charges (in millions):
Fiscal Year Ending March 31, |  | Amortization Expense
2024 |  | $ | 343.9 |
2025 |  | $ | 554.9 |
2026 |  | $ | 485.3 |
2027 |  | $ | 383.6 |
2028 |  | $ | 297.9 |
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):
|  |  | Three Months Ended September 30, |  | Six Months Ended September 30,
|  |  |  |  |  |  | 2023 |  | 2022 |  | 2023 |  | 2022
Amortization expense charged to cost of sales |  |  |  |  |  |  | $ | 3.0 |  |  | $ | 3.9 |  |  | $ | 6.0 |  |  | $ | 7.2 |
Amortization expense charged to operating expense |  |  |  |  |  |  | 169.0 |  |  | 184.3 |  |  | 338.4 |  |  | 368.7 |
Total amortization expense |  |  |  |  |  |  | $ | 172.0 |  |  | $ | 188.2 |  |  | $ | 344.4 |  |  | $ | 375.9 |
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, 2023 | $ | 6,654.4 |  |  | $ | 19.2 |
Additions | 1.8 |  |  | — |
Balance at September 30, 2023 | $ | 6,656.2 |  |  | $ | 19.2 |
At March 31, 2023, the Company applied a qualitative goodwill impairment test to its two reporting units, and concluded that goodwill was not impaired. Through September 30, 2023, the Company has never recorded a goodwill impairment charge.

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