Segments (Tables)

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Financial information for each segment

The following table presents net revenues by product and service (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Routing	$	407.5	$	496.4	$	1,199.1	$	1,395.1
Switching	241.6		221.1		633.6		705.9
Security	94.1		77.2		243.1		229.4
Total product	743.2		794.7		2,075.8		2,330.4
Total service	389.9		385.1		1,161.5		1,136.1
Total	$	1,133.1	$	1,179.8	$	3,237.3	$	3,466.5

The following table presents net revenues by customer vertical^(*) (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Cloud	$	271.9	$	257.1	$	780.0	$	812.4
Service Provider	452.5		545.3		1,335.3		1,550.3
Enterprise	408.7		377.4		1,122.0		1,103.8
Total	$	1,133.1	$	1,179.8	$	3,237.3	$	3,466.5

________________________________

^(*) Certain insignificant prior-period amounts have been reclassified to conform to the current-period presentation.

Disaggregation of revenue

The following table presents net revenues by product and service (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Routing	$	407.5	$	496.4	$	1,199.1	$	1,395.1
Switching	241.6		221.1		633.6		705.9
Security	94.1		77.2		243.1		229.4
Total product	743.2		794.7		2,075.8		2,330.4
Total service	389.9		385.1		1,161.5		1,136.1
Total	$	1,133.1	$	1,179.8	$	3,237.3	$	3,466.5

The following table presents net revenues by customer vertical^(*) (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Cloud	$	271.9	$	257.1	$	780.0	$	812.4
Service Provider	452.5		545.3		1,335.3		1,550.3
Enterprise	408.7		377.4		1,122.0		1,103.8
Total	$	1,133.1	$	1,179.8	$	3,237.3	$	3,466.5

________________________________

^(*) Certain insignificant prior-period amounts have been reclassified to conform to the current-period presentation.

The Company attributes revenues to geographic region based on the customer’s shipping address. The following table presents net revenues by geographic region (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Americas:
United States	$	599.4	$	597.1	$	1,677.2	$	1,754.2
Other	49.4		46.0		164.0		152.2
Total Americas	648.8		643.1		1,841.2		1,906.4
Europe, Middle East, and Africa	301.5		329.9		879.6		946.8
Asia Pacific	182.8		206.8		516.5		613.3
Total	$	1,133.1	$	1,179.8	$	3,237.3	$	3,466.5

Net revenues by geographic region

The Company attributes revenues to geographic region based on the customer’s shipping address. The following table presents net revenues by geographic region (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Americas:
United States	$	599.4	$	597.1	$	1,677.2	$	1,754.2
Other	49.4		46.0		164.0		152.2
Total Americas	648.8		643.1		1,841.2		1,906.4
Europe, Middle East, and Africa	301.5		329.9		879.6		946.8
Asia Pacific	182.8		206.8		516.5		613.3
Total	$	1,133.1	$	1,179.8	$	3,237.3	$	3,466.5