Segments - Revenue by Product (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	1
Net revenues	$ 5,301.2	$ 4,735.4	$ 4,445.1
Automated WAN Solutions
Segment Reporting Information [Line Items]
Net revenues	1,865.3	1,665.0	1,622.2
Cloud-Ready Data Center
Segment Reporting Information [Line Items]
Net revenues	878.9	727.1	677.1
AI-Driven Enterprise
Segment Reporting Information [Line Items]
Net revenues	1,026.2	830.4	656.2
Hardware Maintenance and Professional Services
Segment Reporting Information [Line Items]
Net revenues	$ 1,530.8	$ 1,512.9	$ 1,489.6