Segments (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Financial information for each segment

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

	Three Months Ended March 31,
	2018		2017
Routing	$	408.1	$	521.6
Switching	230.0		241.6
Security	72.7		65.7
Total product	710.8		828.9
Total service	371.8		392.1
Total	$	1,082.6	$	1,221.0

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

	Three Months Ended March 31,
	2018		2017
Cloud	$	268.3	$	331.6
Service Provider	479.9		568.5
Enterprise	334.4		320.9
Total	$	1,082.6	$	1,221.0

Disaggregation of revenue

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

	Three Months Ended March 31,
	2018		2017
Routing	$	408.1	$	521.6
Switching	230.0		241.6
Security	72.7		65.7
Total product	710.8		828.9
Total service	371.8		392.1
Total	$	1,082.6	$	1,221.0

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

	Three Months Ended March 31,
	2018		2017
Cloud	$	268.3	$	331.6
Service Provider	479.9		568.5
Enterprise	334.4		320.9
Total	$	1,082.6	$	1,221.0

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 March 31,
	2018		2017
Americas:
United States	$	532.3	$	658.1
Other	55.3		53.5
Total Americas	587.6		711.6
Europe, Middle East, and Africa	308.0		284.5
Asia Pacific	187.0		224.9
Total	$	1,082.6	$	1,221.0

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 March 31,
	2018		2017
Americas:
United States	$	532.3	$	658.1
Other	55.3		53.5
Total Americas	587.6		711.6
Europe, Middle East, and Africa	308.0		284.5
Asia Pacific	187.0		224.9
Total	$	1,082.6	$	1,221.0