Segment Information (Tables)

9 Months Ended

Sep. 30, 2019

Schedule of Segment Reporting Information, by Segment

Information about the Company's segments is as follows:



(in millions)	Corporate			Small Business			Public			Other			Headquarters			Total
Three Months Ended September 30, 2019
Net sales	$	1,913.5		$	386.2		$	2,100.9		$	507.1		$	—		$	4,907.7
Operating income (loss)	138.9			27.2			168.4			21.9			(35.8		)	320.6
Depreciation and amortization expense	(21.7		)	(5.6		)	(15.0		)	(7.9		)	(18.0		)	(68.2		)

Three Months Ended September 30, 2018
Net sales	$	1,706.5		$	340.0		$	1,875.1		$	451.6		$	—		$	4,373.2
Operating income (loss)	125.7			23.8			136.6			19.2			(30.5		)	274.8
Depreciation and amortization expense	(21.8		)	(5.5		)	(12.9		)	(7.3		)	(18.3		)	(65.8		)



(in millions)	Corporate			Small Business			Public			Other			Headquarters			Total
Nine Months Ended September 30, 2019
Net sales	$	5,533.6		$	1,119.2		$	5,271.7		$	1,571.0		$	—		$	13,495.5
Operating income (loss)	430.8			78.2			373.9			66.6			(99.7		)	849.8
Depreciation and amortization expense	(64.8		)	(16.8		)	(41.4		)	(23.1		)	(51.4		)	(197.5		)

Nine Months Ended September 30, 2018
Net sales	$	5,006.1		$	997.1		$	4,740.5		$	1,422.0		$	—		$	12,165.7
Operating income (loss)	388.3			70.0			318.3			60.7			(92.9		)	744.4
Depreciation and amortization expense	(66.8		)	(16.6		)	(38.4		)	(25.1		)	(51.8		)	(198.7		)

Disaggregation of Revenue

Geographic Areas and Revenue Mix



	Three Months Ended September 30, 2019
(in millions)	Corporate		Small Business		Public		Other		Total
Geography⁽¹⁾
United States	$	1,910.9	$	386.2	$	2,100.9	$	7.6	$	4,405.6
Rest of World	2.6		—		—		499.5		502.1
Total Net sales	1,913.5		386.2		2,100.9		507.1		4,907.7

Major Product and Services
Hardware	1,528.0		326.6		1,711.3		358.3		3,924.2
Software	269.1		47.6		324.4		66.1		707.2
Services	97.9		6.7		59.0		80.2		243.8
Other⁽²⁾	18.5		5.3		6.2		2.5		32.5
Total Net sales	1,913.5		386.2		2,100.9		507.1		4,907.7

Sales by Channel
Corporate	1,913.5		—		—		—		1,913.5
Small Business	—		386.2		—		—		386.2
Government	—		—		793.4		—		793.4
Education	—		—		807.0		—		807.0
Healthcare	—		—		500.5		—		500.5
Other	—		—		—		507.1		507.1
Total Net sales	1,913.5		386.2		2,100.9		507.1		4,907.7

Timing of Revenue Recognition
Transferred at a point in time where CDW is principal	1,743.4		364.0		1,939.3		443.8		4,490.5
Transferred at a point in time where CDW is agent	111.0		19.6		79.6		15.5		225.7
Transferred over time where CDW is principal	59.1		2.6		82.0		47.8		191.5
Total Net sales	$	1,913.5	$	386.2	$	2,100.9	$	507.1	$	4,907.7


(1)	Net sales by geography is generally based on the ship-to address with the exception of certain services that may be performed at, or on behalf of, multiple locations. Such service arrangements are categorized based on the bill-to address.


(2)	Includes items such as delivery charges to customers.



	Three Months Ended September 30, 2018
(in millions)	Corporate		Small Business		Public		Other		Total
Geography⁽¹⁾
United States	$	1,704.1	$	340.0	$	1,875.1	$	6.8	$	3,926.0
Rest of World	2.4		—		—		444.8		447.2
Total Net sales	1,706.5		340.0		1,875.1		451.6		4,373.2

Major Product and Services
Hardware	1,379.5		284.0		1,530.8		363.6		3,557.9
Software	227.5		44.3		291.0		45.6		608.4
Services	83.1		6.6		48.8		40.5		179.0
Other⁽²⁾	16.4		5.1		4.5		1.9		27.9
Total Net sales	1,706.5		340.0		1,875.1		451.6		4,373.2

Sales by Channel
Corporate	1,706.5		—		—		—		1,706.5
Small Business	—		340.0		—		—		340.0
Government	—		—		639.3		—		639.3
Education	—		—		793.1		—		793.1
Healthcare	—		—		442.7		—		442.7
Other	—		—		—		451.6		451.6
Total Net sales	1,706.5		340.0		1,875.1		451.6		4,373.2

Timing of Revenue Recognition
Transferred at a point in time where CDW is principal	1,571.6		321.0		1,764.6		402.8		4,060.0
Transferred at a point in time where CDW is agent	85.7		16.9		64.3		12.3		179.2
Transferred over time where CDW is principal	49.2		2.1		46.2		36.5		134.0
Total Net sales	$	1,706.5	$	340.0	$	1,875.1	$	451.6	$	4,373.2


(1)	Net sales by geography is generally based on the ship-to address with the exception of certain services that may be performed at, or on behalf of, multiple locations. Such service arrangements are categorized based on the bill-to address.


(2)	Includes items such as delivery charges to customers.



	Nine Months Ended September 30, 2019
(in millions)	Corporate		Small Business		Public		Other		Total
Geography⁽¹⁾
United States	$	5,525.5	$	1,119.2	$	5,271.7	$	24.8	$	11,941.2
Rest of World	8.1		—		—		1,546.2		1,554.3
Total Net sales	5,533.6		1,119.2		5,271.7		1,571.0		13,495.5

Major Product and Services
Hardware	4,411.6		937.5		4,297.6		1,143.0		10,789.7
Software	784.8		145.0		808.0		213.3		1,951.1
Services	284.0		20.8		150.8		206.3		661.9
Other⁽²⁾	53.2		15.9		15.3		8.4		92.8
Total Net sales	5,533.6		1,119.2		5,271.7		1,571.0		13,495.5

Sales by Channel
Corporate	5,533.6		—		—		—		5,533.6
Small Business	—		1,119.2		—		—		1,119.2
Government	—		—		1,860.2		—		1,860.2
Education	—		—		1,981.0		—		1,981.0
Healthcare	—		—		1,430.5		—		1,430.5
Other	—		—		—		1,571.0		1,571.0
Total Net sales	5,533.6		1,119.2		5,271.7		1,571.0		13,495.5

Timing of Revenue Recognition
Transferred at a point in time where CDW is principal	5,033.4		1,054.7		4,908.0		1,383.7		12,379.8
Transferred at a point in time where CDW is agent	333.7		59.4		190.9		42.0		626.0
Transferred over time where CDW is principal	166.5		5.1		172.8		145.3		489.7
Total Net sales	$	5,533.6	$	1,119.2	$	5,271.7	$	1,571.0	$	13,495.5


(1)	Net sales by geography is generally based on the ship-to address with the exception of certain services that may be performed at, or on behalf of, multiple locations. Such service arrangements are categorized based on the bill-to address.


(2)	Includes items such as delivery charges to customers.



	Nine Months Ended September 30, 2018
(in millions)	Corporate		Small Business		Public		Other		Total
Geography⁽¹⁾
United States	$	4,999.9	$	997.1	$	4,740.5	$	24.0	$	10,761.5
Rest of World	6.2		—		—		1,398.0		1,404.2
Total Net sales	5,006.1		997.1		4,740.5		1,422.0		12,165.7

Major Product and Services
Hardware	4,013.4		829.4		3,876.7		1,136.9		9,856.4
Software	699.6		131.2		730.5		154.0		1,715.3
Services	242.3		20.6		120.5		124.8		508.2
Other⁽²⁾	50.8		15.9		12.8		6.3		85.8
Total Net sales	5,006.1		997.1		4,740.5		1,422.0		12,165.7

Sales by Channel
Corporate	5,006.1		—		—		—		5,006.1
Small Business	—		997.1		—		—		997.1
Government	—		—		1,551.3		—		1,551.3
Education	—		—		1,902.4		—		1,902.4
Healthcare	—		—		1,286.8		—		1,286.8
Other	—		—		—		1,422.0		1,422.0
Total Net sales	5,006.1		997.1		4,740.5		1,422.0		12,165.7

Timing of Revenue Recognition
Transferred at a point in time where CDW is principal	4,581.3		940.0		4,445.8		1,277.4		11,244.5
Transferred at a point in time where CDW is agent	279.9		50.5		160.7		37.1		528.2
Transferred over time where CDW is principal	144.9		6.6		134.0		107.5		393.0
Total Net sales	$	5,006.1	$	997.1	$	4,740.5	$	1,422.0	$	12,165.7


(1)	Net sales by geography is generally based on the ship-to address with the exception of certain services that may be performed at, or on behalf of, multiple locations. Such service arrangements are categorized based on the bill-to address.


(2)	Includes items such as delivery charges to customers.

The following table presents Net sales by major category for the three and nine months ended September 30, 2019 and 2018. Categories are based upon internal classifications.



	Three Months Ended September 30,
	2019				2018
	Dollars in Millions		Percentage of Total Net Sales		Dollars in Millions		Percentage of Total Net Sales
Notebooks/Mobile Devices	$	1,325.6	27.0	%	$	1,124.8	25.7	%
Netcomm Products	567.3		11.6		582.4		13.3
Desktops	448.4		9.1		349.0		8.0
Video	353.3		7.2		320.5		7.3
Enterprise and Data Storage (Including Drives)	283.6		5.8		297.4		6.8
Other Hardware	946.0		19.3		883.8		20.3
Total Hardware	3,924.2		80.0		3,557.9		81.4

Software⁽¹⁾	707.2		14.3		608.4		13.9
Services⁽¹⁾	243.8		5.0		179.0		4.1
Other⁽²⁾	32.5		0.7		27.9		0.6
Total Net sales	$	4,907.7	100.0	%	$	4,373.2	100.0	%



	Nine Months Ended September 30,
	2019				2018
	Dollars in Millions		Percentage of Total Net Sales		Dollars in Millions		Percentage of Total Net Sales
Notebooks/Mobile Devices	$	3,537.5	26.2	%	$	3,069.4	25.2	%
Netcomm Products	1,641.9		12.2		1,568.5		12.9
Desktops	1,183.6		8.8		1,013.2		8.3
Video	972.7		7.2		904.4		7.4
Enterprise and Data Storage (Including Drives)	849.2		6.3		816.2		6.7
Other Hardware	2,604.8		19.3		2,484.7		20.5
Total Hardware	10,789.7		80.0		9,856.4		81.0

Software⁽¹⁾	1,951.1		14.4		1,715.3		14.1
Services⁽¹⁾	661.9		4.9		508.2		4.2
Other⁽²⁾	92.8		0.7		85.8		0.7
Total Net sales	$	13,495.5	100.0	%	$	12,165.7	100.0	%


(1)	Certain software and services revenues are recorded on a net basis for accounting purposes. As a result, the category percentage of net revenues is not representative of the category percentage of gross profits.


(2)	Includes items such as delivery charges to customers.