Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Intangible Asset, Acquired, Finite-Lived [Line Items] | ||
| Gross Carrying Amount | $ 1,647 | $ 1,617 |
| Accumulated Amortization | (1,205) | (1,108) |
| Net Carrying Amount | 442 | 509 |
| Tradenames | ||
| Intangible Asset, Acquired, Finite-Lived [Line Items] | ||
| Gross Carrying Amount | 156 | 154 |
| Accumulated Amortization | (145) | (138) |
| Net Carrying Amount | 11 | 16 |
| Technology and software | ||
| Intangible Asset, Acquired, Finite-Lived [Line Items] | ||
| Gross Carrying Amount | 620 | 606 |
| Accumulated Amortization | (523) | (484) |
| Net Carrying Amount | 97 | 122 |
| Customer-related Intangible Assets | ||
| Intangible Asset, Acquired, Finite-Lived [Line Items] | ||
| Gross Carrying Amount | 864 | 852 |
| Accumulated Amortization | (531) | (482) |
| Net Carrying Amount | 333 | 370 |
| Other Intangible Assets | ||
| Intangible Asset, Acquired, Finite-Lived [Line Items] | ||
| Gross Carrying Amount | 7 | 5 |
| Accumulated Amortization | (6) | (4) |
| Net Carrying Amount | $ 1 | $ 1 |