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Revenue - Net Revenue by End Market (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 01, 2025	Nov. 02, 2024	Nov. 01, 2025	Nov. 02, 2024
Disaggregation of Revenue [Line Items]
Net revenue	$ 2,074.5	$ 1,516.1	$ 5,975.9	$ 3,949.9
Data center
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,517.9	$ 1,101.1	$ 4,449.0	$ 2,798.4
Data center | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	73.00%	73.00%	75.00%	71.00%
Enterprise networking
Disaggregation of Revenue [Line Items]
Net revenue	$ 237.2	$ 150.9	$ 608.3	$ 455.0
Enterprise networking | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	11.00%	10.00%	10.00%	12.00%
Carrier infrastructure
Disaggregation of Revenue [Line Items]
Net revenue	$ 167.8	$ 84.7	$ 436.3	$ 232.4
Carrier infrastructure | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	8.00%	6.00%	7.00%	6.00%
Consumer
Disaggregation of Revenue [Line Items]
Net revenue	$ 116.6	$ 96.5	$ 295.6	$ 227.4
Consumer | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	6.00%	6.00%	5.00%	6.00%
Automotive/industrial
Disaggregation of Revenue [Line Items]
Net revenue	$ 35.0	$ 82.9	$ 186.7	$ 236.7
Automotive/industrial | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	2.00%	5.00%	3.00%	5.00%

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