Fair Value Measurements - Investment Impairments and Credit Loss Reserves (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Apr. 26, 2026 |
Jan. 25, 2026 |
|
| Fair Value Disclosures [Abstract] | ||
| Credit loss reserve for held-to-maturity debt securities and available for sale debt securities | $ 3.8 | $ 4.5 |
| Decrease in credit loss reserve | $ 0.7 |