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Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended
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Jun. 30, 2026 | Jun. 30, 2025
Disaggregation of Revenue [Line Items] |  |
Total Revenue | $ 1,289 | $ 1,053
Over-time revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | 288 | 221
Point-in-time revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | 286 | 247
Nonrelated Party |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | 901 | 725
Related Party |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | 388 | 328
License and Other Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | 574 | 468
License and Other Revenue | Nonrelated Party |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | 310 | 255
License and Other Revenue | Related Party |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | 264 | 213
Royalty Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | 715 | 585
Royalty Revenue | Nonrelated Party |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | 591 | 470
Royalty Revenue | Related Party |  |
Disaggregation of Revenue [Line Items] |  |
Total Revenue | $ 124 | $ 115

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