Segment Information - Products and Services (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net Sales from External Customer [Line Items]
Net sales	$ 20,998.7	$ 21,376.0	$ 23,748.7
Percentage of Total Net Sales	100.00%	100.00%	100.00%
Notebooks/Mobile Devices
Net Sales from External Customer [Line Items]
Net sales	$ 5,089.9	$ 4,690.5	$ 6,179.7
Percentage of Total Net Sales	24.20%	21.90%	26.00%
Netcomm Products
Net Sales from External Customer [Line Items]
Net sales	$ 2,538.2	$ 3,185.4	$ 2,729.7
Percentage of Total Net Sales	12.10%	14.90%	11.50%
Collaboration
Net Sales from External Customer [Line Items]
Net sales	$ 1,770.6	$ 1,909.7	$ 2,394.8
Percentage of Total Net Sales	8.40%	8.90%	10.10%
Data Storage and Servers
Net Sales from External Customer [Line Items]
Net sales	$ 2,133.8	$ 2,240.7	$ 2,479.0
Percentage of Total Net Sales	10.20%	10.50%	10.40%
Desktops
Net Sales from External Customer [Line Items]
Net sales	$ 1,111.2	$ 1,069.1	$ 1,284.9
Percentage of Total Net Sales	5.30%	5.00%	5.40%
Other Hardware
Net Sales from External Customer [Line Items]
Net sales	$ 2,575.4	$ 2,607.2	$ 3,022.9
Percentage of Total Net Sales	12.30%	12.30%	12.70%
Total Hardware
Net Sales from External Customer [Line Items]
Net sales	$ 15,219.1	$ 15,702.6	$ 18,091.0
Percentage of Total Net Sales	72.50%	73.50%	76.10%
Software
Net Sales from External Customer [Line Items]
Net sales	$ 3,804.4	$ 3,799.3	$ 3,684.9
Percentage of Total Net Sales	18.10%	17.80%	15.50%
Services
Net Sales from External Customer [Line Items]
Net sales	$ 1,867.3	$ 1,761.3	$ 1,842.0
Percentage of Total Net Sales	8.90%	8.20%	7.80%
Other
Net Sales from External Customer [Line Items]
Net sales	$ 107.9	$ 112.8	$ 130.8
Percentage of Total Net Sales	0.50%	0.50%	0.60%