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Fair Value Measurements - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Nov. 01, 2025
Nov. 02, 2024
Nov. 01, 2025
Nov. 02, 2024
Feb. 01, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Non-marketable equity investments $ 128.4   $ 128.4   $ 48.2
Unrealized gain on observable price changes 42.7 $ 0.0 37.4 $ 0.0  
Level 2 | Notes          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Long term convertible debt $ 4,500.0   $ 4,500.0   $ 3,400.0