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Revenue - Net Revenue by End Market (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 29, 2022	Oct. 30, 2021	Oct. 29, 2022	Oct. 30, 2021
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,537.3	$ 1,211.2	$ 4,501.1	$ 3,119.4
Data center
Disaggregation of Revenue [Line Items]
Net revenue	$ 627.3	$ 499.8	$ 1,911.2	$ 1,210.6
Data center | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	41.00%	41.00%	42.00%	39.00%
Carrier infrastructure
Disaggregation of Revenue [Line Items]
Net revenue	$ 271.4	$ 215.1	$ 808.6	$ 579.4
Carrier infrastructure | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	18.00%	18.00%	18.00%	19.00%
Enterprise networking
Disaggregation of Revenue [Line Items]
Net revenue	$ 376.0	$ 247.2	$ 1,002.9	$ 644.7
Enterprise networking | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	24.00%	20.00%	22.00%	21.00%
Consumer
Disaggregation of Revenue [Line Items]
Net revenue	$ 178.4	$ 182.5	$ 521.3	$ 514.6
Consumer | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	12.00%	15.00%	12.00%	16.00%
Automotive/industrial
Disaggregation of Revenue [Line Items]
Net revenue	$ 84.2	$ 66.6	$ 257.1	$ 170.1
Automotive/industrial | Net Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	5.00%	6.00%	6.00%	5.00%

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