Segment Information

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Segment Information

Segment Information

The Company’s segment information reflects the way the chief operating decision maker uses internal reporting to evaluate business performance, allocate resources and manage operations.

The Company has three reportable segments: Corporate, which is comprised primarily of private sector business customers with more than 250 employees in the US, Small Business, primarily servicing private sector business customers with up to 250 employees in the US, and Public, which is comprised of government agencies and education and healthcare institutions in the US. The Company has two other operating segments: CDW UK and CDW Canada, both of which do not meet the reportable segment quantitative thresholds and, accordingly, are included in an all other category (“Other”).

The Company has centralized logistics and headquarters functions that provide services to the segments. The logistics function includes purchasing, distribution and fulfillment services to support the Corporate, Small Business and Public segments. As a result, costs and intercompany charges associated with the logistics function are fully allocated to all of these segments based on a percent of Net sales. The centralized headquarters function provides services in areas such as accounting, information technology, marketing, legal and coworker services. Headquarters function costs that are not allocated to the segments are included under the heading of “Headquarters” in the tables below.

Segment information for Total assets and capital expenditures is not presented, as such information is not used in measuring segment performance or allocating resources between segments.

Selected Segment Financial Information

Information about the Company’s segments for the years ended December 31, 2023, 2022 and 2021 is as follows:

	Corporate		Small Business		Public		Other		Headquarters		Total
2023:
Net sales	$	8,960.8	$	1,556.0	$	8,305.7	$	2,553.5	$	—	$	21,376.0
Operating income (loss)	846.8		177.3		735.0		142.1		(220.3)		1,680.9
Depreciation and amortization expense	(82.1)		(4.7)		(58.4)		(30.1)		(95.4)		(270.7)
2022:
Net sales	$	10,350.1	$	1,938.9	$	8,551.3	$	2,908.4	$	—	$	23,748.7
Operating income (loss)	931.7		186.8		681.7		130.7		(195.7)		1,735.2
Depreciation and amortization expense	(98.0)		(6.4)		(67.9)		(31.9)		(86.4)		(290.6)
2021:
Net sales	$	8,179.7	$	1,870.1	$	8,183.6	$	2,587.4	$	—	$	20,820.8
Operating income (loss)	697.3		167.7		606.7		115.8		(168.5)		1,419.0
Depreciation and amortization expense	(22.9)		(4.1)		(57.2)		(34.4)		(72.6)		(191.2)

    Geographic Areas and Revenue Mix

	Year Ended December 31, 2023
	Corporate		Small Business		Public		Other		Total
Geography(1)
United States	$	8,894.5	$	1,534.5	$	8,299.4	$	26.5	$	18,754.9
Rest of World	66.3		21.5		6.3		2,527.0		2,621.1
Total Net sales	$	8,960.8	$	1,556.0	$	8,305.7	$	2,553.5	$	21,376.0
Major Product and Services
Hardware	$	6,216.9	$	1,242.3	$	6,460.4	$	1,783.0	$	15,702.6
Software	1,772.3		232.8		1,295.4		498.8		3,799.3
Services	909.1		62.6		531.5		258.1		1,761.3
Other(2)	62.5		18.3		18.4		13.6		112.8
Total Net sales	$	8,960.8	$	1,556.0	$	8,305.7	$	2,553.5	$	21,376.0
Sales by Channel
Corporate	$	8,960.8	$	—	$	—	$	—	$	8,960.8
Small Business	—		1,556.0		—		—		1,556.0
Government	—		—		2,669.1		—		2,669.1
Education	—		—		3,298.3		—		3,298.3
Healthcare	—		—		2,338.3		—		2,338.3
Other	—		—		—		2,553.5		2,553.5
Total Net sales	$	8,960.8	$	1,556.0	$	8,305.7	$	2,553.5	$	21,376.0
Timing of Revenue Recognition
Transferred at a point in time where CDW is principal	$	7,515.7	$	1,374.1	$	7,411.1	$	2,212.0	$	18,512.9
Transferred at a point in time where CDW is agent	778.0		145.3		480.6		117.9		1,521.8
Transferred over time where CDW is principal	667.1		36.6		414.0		223.6		1,341.3
Total Net sales	$	8,960.8	$	1,556.0	$	8,305.7	$	2,553.5	$	21,376.0

(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.

	Year Ended December 31, 2022
	Corporate		Small Business		Public		Other		Total
Geography(1)
United States	$	10,321.2	$	1,934.8	$	8,550.8	$	21.8	$	20,828.6
Rest of World	28.9		4.1		0.5		2,886.6		2,920.1
Total Net sales	$	10,350.1	$	1,938.9	$	8,551.3	$	2,908.4	$	23,748.7
Major Product and Services
Hardware	$	7,561.0	$	1,610.7	$	6,763.9	$	2,155.4	$	18,091.0
Software	1,781.5		232.9		1,196.9		473.6		3,684.9
Services	929.3		73.8		570.7		268.2		1,842.0
Other(2)	78.3		21.5		19.8		11.2		130.8
Total Net sales	$	10,350.1	$	1,938.9	$	8,551.3	$	2,908.4	$	23,748.7
Sales by Channel
Corporate	$	10,350.1	$	—	$	—	$	—	$	10,350.1
Small Business	—		1,938.9		—		—		1,938.9
Government	—		—		2,574.3		—		2,574.3
Education	—		—		3,621.4		—		3,621.4
Healthcare	—		—		2,355.6		—		2,355.6
Other	—		—		—		2,908.4		2,908.4
Total Net sales	$	10,350.1	$	1,938.9	$	8,551.3	$	2,908.4	$	23,748.7
Timing of Revenue Recognition
Transferred at a point in time where CDW is principal	$	8,971.4	$	1,751.1	$	7,717.1	$	2,576.5	$	21,016.1
Transferred at a point in time where CDW is agent	749.3		140.1		426.9		97.7		1,414.0
Transferred over time where CDW is principal	629.4		47.7		407.3		234.2		1,318.6
Total Net sales	$	10,350.1	$	1,938.9	$	8,551.3	$	2,908.4	$	23,748.7

(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.

	Year Ended December 31, 2021
	Corporate		Small Business		Public		Other		Total
Geography(1)
United States	$	8,165.4	$	1,870.1	$	8,183.6	$	19.7	$	18,238.8
Rest of World	14.3		—		—		2,567.7		2,582.0
Total Net sales	$	8,179.7	$	1,870.1	$	8,183.6	$	2,587.4	$	20,820.8
Major Product and Services
Hardware	$	6,427.9	$	1,587.9	$	6,827.1	$	1,926.7	$	16,769.6
Software	1,172.4		211.0		1,017.3		401.7		2,802.4
Services	510.1		49.1		321.5		245.4		1,126.1
Other(2)	69.3		22.1		17.7		13.6		122.7
Total Net sales	$	8,179.7	$	1,870.1	$	8,183.6	$	2,587.4	$	20,820.8
Sales by Channel
Corporate	$	8,179.7	$	—	$	—	$	—	$	8,179.7
Small Business	—		1,870.1		—		—		1,870.1
Government	—		—		2,155.6		—		2,155.6
Education	—		—		4,108.7		—		4,108.7
Healthcare	—		—		1,919.3		—		1,919.3
Other	—		—		—		2,587.4		2,587.4
Total Net sales	$	8,179.7	$	1,870.1	$	8,183.6	$	2,587.4	$	20,820.8
Timing of Revenue Recognition
Transferred at a point in time where CDW is principal	$	7,332.3	$	1,734.7	$	7,634.3	$	2,288.7	$	18,990.0
Transferred at a point in time where CDW is agent	517.5		112.3		336.6		83.2		1,049.6
Transferred over time where CDW is principal	329.9		23.1		212.7		215.5		781.2
Total Net sales	$	8,179.7	$	1,870.1	$	8,183.6	$	2,587.4	$	20,820.8

(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 years ended December 31, 2023, 2022 and 2021. Categories are based upon internal classifications.

	Year Ended December 31,
	2023				2022				2021
	Net Sales		Percentage of Total Net Sales		Net Sales		Percentage of Total Net Sales		Net Sales		Percentage of Total Net Sales
Hardware:
Notebooks/Mobile Devices	$	4,690.5	21.9	%	$	6,179.7	26.0	%	$	6,659.4	32.0	%
Netcomm Products	3,185.4		14.9		2,729.7		11.5		1,950.9		9.4
Collaboration(3)	1,909.7		8.9		2,394.8		10.1		2,218.8		10.7
Data Storage and Servers(3)	2,240.7		10.5		2,479.0		10.4		2,044.9		9.8
Desktops	1,069.1		5.0		1,284.9		5.4		1,203.6		5.8
Other Hardware(3)	2,607.2		12.3		3,022.9		12.7		2,692.0		12.9
Total Hardware	15,702.6		73.5		18,091.0		76.1		16,769.6		80.6
Software(1)	3,799.3		17.8		3,684.9		15.5		2,802.4		13.5
Services(1)	1,761.3		8.2		1,842.0		7.8		1,126.1		5.4
Other(2)	112.8		0.5		130.8		0.6		122.7		0.5
Total Net sales	$	21,376.0	100.0	%	$	23,748.7	100.0	%	$	20,820.8	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.

(3)Prior period amounts have been reclassified to conform with current period presentation.