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Segment Information (Tables) | 6 Months Ended
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Jun. 30, 2021
Segment Reporting [Abstract] |
Schedule of Segment Reporting Information, by Segment | Information about the Company's segments is as follows:
|  | Corporate |  | Small Business |  | Public |  | Other |  | Headquarters |  | Total
Three Months Ended June 30, 2021 |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 1,983.3 |  |  | $ | 482.9 |  |  | $ | 2,080.7 |  |  | $ | 599.5 |  |  | $ | — |  |  | $ | 5,146.4 |
Operating income (loss) |  | 175.2 |  |  | 44.0 |  |  | 153.3 |  |  | 23.7 |  |  | (26.3) |  |  | 369.9 |
Depreciation and amortization expense |  | (3.8) |  |  | (0.8) |  |  | (16.1) |  |  | (8.6) |  |  | (17.3) |  |  | (46.6) |
Three Months Ended June 30, 2020 |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 1,557.5 |  |  | $ | 302.1 |  |  | $ | 2,022.1 |  |  | $ | 484.0 |  |  | $ | — |  |  | $ | 4,365.7 |
Operating income (loss) |  | 123.0 |  |  | 21.0 |  |  | 159.9 |  |  | 16.5 |  |  | (37.0) |  |  | 283.4 |
Depreciation and amortization expense |  | (22.1) |  |  | (5.6) |  |  | (69.1) |  |  | (7.9) |  |  | (20.5) |  |  | (125.2) |
Six Months Ended June 30, 2021 |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 3,788.9 |  |  | $ | 915.6 |  |  | $ | 4,002.4 |  |  | $ | 1,277.0 |  |  | $ | — |  |  | $ | 9,983.9 |
Operating income (loss) |  | 336.6 |  |  | 86.8 |  |  | 290.0 |  |  | 51.4 |  |  | (71.5) |  |  | 693.3 |
Depreciation and amortization expense |  | (7.8) |  |  | (1.6) |  |  | (29.5) |  |  | (17.2) |  |  | (35.7) |  |  | (91.8) |
Six Months Ended June 30, 2020 |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 3,468.5 |  |  | $ | 693.6 |  |  | $ | 3,547.4 |  |  | $ | 1,045.4 |  |  | $ | — |  |  | $ | 8,754.9 |
Operating income (loss) |  | 250.4 |  |  | 48.3 |  |  | 272.3 |  |  | 31.2 |  |  | (73.0) |  |  | 529.2 |
Depreciation and amortization expense |  | (44.4) |  |  | (11.4) |  |  | (106.8) |  |  | (15.9) |  |  | (38.1) |  |  | (216.6) |
Disaggregation of Revenue | Geographic Areas and Revenue Mix
| Three Months Ended June 30, 2021 |  |
| Corporate |  | Small Business |  | Public |  | Other |  | Total |  |  |  |  |  |  |  |  |  |
Geography(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States | $ | 1,976.2 |  |  | $ | 482.9 |  |  | $ | 2,080.7 |  |  | $ | 4.7 |  |  | $ | 4,544.5 |  |  |  |  |  |  |  |  |  |  |
Rest of World | 7.1 |  |  | — |  |  | — |  |  | 594.8 |  |  | 601.9 |  |  |  |  |  |  |  |  |  |  |
Total Net sales | 1,983.3 |  |  | 482.9 |  |  | 2,080.7 |  |  | 599.5 |  |  | 5,146.4 |  |  |  |  |  |  |  |  |  |  |
Major Product and Services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hardware | 1,586.5 |  |  | 416.4 |  |  | 1,763.9 |  |  | 458.8 |  |  | 4,225.6 |  |  |  |  |  |  |  |  |  |  |
Software | 267.6 |  |  | 49.4 |  |  | 242.5 |  |  | 78.3 |  |  | 637.8 |  |  |  |  |  |  |  |  |  |  |
Services | 110.9 |  |  | 11.3 |  |  | 70.1 |  |  | 59.4 |  |  | 251.7 |  |  |  |  |  |  |  |  |  |  |
Other(2) | 18.3 |  |  | 5.8 |  |  | 4.2 |  |  | 3.0 |  |  | 31.3 |  |  |  |  |  |  |  |  |  |  |
Total Net sales | 1,983.3 |  |  | 482.9 |  |  | 2,080.7 |  |  | 599.5 |  |  | 5,146.4 |  |  |  |  |  |  |  |  |  |  |
Sales by Channel |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate | 1,983.3 |  |  | — |  |  | — |  |  | — |  |  | 1,983.3 |  |  |  |  |  |  |  |  |  |  |
Small Business | — |  |  | 482.9 |  |  | — |  |  | — |  |  | 482.9 |  |  |  |  |  |  |  |  |  |  |
Government | — |  |  | — |  |  | 513.4 |  |  | — |  |  | 513.4 |  |  |  |  |  |  |  |  |  |  |
Education | — |  |  | — |  |  | 1,112.1 |  |  | — |  |  | 1,112.1 |  |  |  |  |  |  |  |  |  |  |
Healthcare | — |  |  | — |  |  | 455.2 |  |  | — |  |  | 455.2 |  |  |  |  |  |  |  |  |  |  |
Other | — |  |  | — |  |  | — |  |  | 599.5 |  |  | 599.5 |  |  |  |  |  |  |  |  |  |  |
Total Net sales | 1,983.3 |  |  | 482.9 |  |  | 2,080.7 |  |  | 599.5 |  |  | 5,146.4 |  |  |  |  |  |  |  |  |  |  |
Timing of Revenue Recognition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transferred at a point in time where CDW is principal | 1,789.2 |  |  | 451.6 |  |  | 1,953.5 |  |  | 527.2 |  |  | 4,721.5 |  |  |  |  |  |  |  |  |  |  |
Transferred at a point in time where CDW is agent | 120.7 |  |  | 25.9 |  |  | 85.0 |  |  | 19.8 |  |  | 251.4 |  |  |  |  |  |  |  |  |  |  |
Transferred over time where CDW is principal | 73.4 |  |  | 5.4 |  |  | 42.2 |  |  | 52.5 |  |  | 173.5 |  |  |  |  |  |  |  |  |  |  |
Total Net sales | $ | 1,983.3 |  |  | $ | 482.9 |  |  | $ | 2,080.7 |  |  | $ | 599.5 |  |  | $ | 5,146.4 |  |  |  |  |  |  |  |  |  |  |
(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 June 30, 2020
| Corporate |  | Small Business |  | Public |  | Other |  | Total
Geography(1) |  |  |  |  |  |  |  |  |
United States | $ | 1,542.9 |  |  | $ | 302.1 |  |  | $ | 2,022.1 |  |  | $ | 3.8 |  |  | $ | 3,870.9 |
Rest of World | 14.6 |  |  | — |  |  | — |  |  | 480.2 |  |  | 494.8 |
Total Net sales | 1,557.5 |  |  | 302.1 |  |  | 2,022.1 |  |  | 484.0 |  |  | 4,365.7 |
Major Product and Services(2) |  |  |  |  |  |  |  |  |
Hardware | 1,211.6 |  |  | 247.7 |  |  | 1,724.8 |  |  | 365.1 |  |  | 3,549.2 |
Software | 238.9 |  |  | 42.6 |  |  | 222.5 |  |  | 68.3 |  |  | 572.3 |
Services | 93.1 |  |  | 7.1 |  |  | 66.2 |  |  | 48.4 |  |  | 214.8 |
Other(3) | 13.9 |  |  | 4.7 |  |  | 8.6 |  |  | 2.2 |  |  | 29.4 |
Total Net sales | 1,557.5 |  |  | 302.1 |  |  | 2,022.1 |  |  | 484.0 |  |  | 4,365.7 |
Sales by Channel |  |  |  |  |  |  |  |  |
Corporate | 1,557.5 |  |  | — |  |  | — |  |  | — |  |  | 1,557.5 |
Small Business | — |  |  | 302.1 |  |  | — |  |  | — |  |  | 302.1 |
Government | — |  |  | — |  |  | 719.7 |  |  | — |  |  | 719.7 |
Education | — |  |  | — |  |  | 876.8 |  |  | — |  |  | 876.8 |
Healthcare | — |  |  | — |  |  | 425.6 |  |  | — |  |  | 425.6 |
Other | — |  |  | — |  |  | — |  |  | 484.0 |  |  | 484.0 |
Total Net sales | 1,557.5 |  |  | 302.1 |  |  | 2,022.1 |  |  | 484.0 |  |  | 4,365.7 |
Timing of Revenue Recognition |  |  |  |  |  |  |  |  |
Transferred at a point in time where CDW is principal | 1,387.2 |  |  | 280.7 |  |  | 1,854.2 |  |  | 426.2 |  |  | 3,948.3 |
Transferred at a point in time where CDW is agent | 112.2 |  |  | 18.9 |  |  | 68.3 |  |  | 14.8 |  |  | 214.2 |
Transferred over time where CDW is principal | 58.1 |  |  | 2.5 |  |  | 99.6 |  |  | 43.0 |  |  | 203.2 |
Total Net sales | $ | 1,557.5 |  |  | $ | 302.1 |  |  | $ | 2,022.1 |  |  | $ | 484.0 |  |  | $ | 4,365.7 |
(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)Amounts have been reclassified for changes in individual product classifications to conform to the presentation for the three months ended June 30, 2021. (3)Includes items such as delivery charges to customers.
| Six Months Ended June 30, 2021
| Corporate |  | Small Business |  | Public |  | Other |  | Total
Geography(1) |  |  |  |  |  |  |  |  |
United States | $ | 3,779.7 |  |  | $ | 915.6 |  |  | $ | 4,002.4 |  |  | $ | 9.3 |  |  | $ | 8,707.0 |
Rest of World | 9.2 |  |  | — |  |  | — |  |  | 1,267.7 |  |  | 1,276.9 |
Total Net sales | 3,788.9 |  |  | 915.6 |  |  | 4,002.4 |  |  | 1,277.0 |  |  | 9,983.9 |
Major Product and Services |  |  |  |  |  |  |  |  |
Hardware | 3,007.3 |  |  | 784.6 |  |  | 3,431.8 |  |  | 971.5 |  |  | 8,195.2 |
Software | 534.6 |  |  | 98.5 |  |  | 433.9 |  |  | 176.3 |  |  | 1,243.3 |
Services | 213.5 |  |  | 21.5 |  |  | 128.0 |  |  | 122.6 |  |  | 485.6 |
Other(2) | 33.5 |  |  | 11.0 |  |  | 8.7 |  |  | 6.6 |  |  | 59.8 |
Total Net sales | 3,788.9 |  |  | 915.6 |  |  | 4,002.4 |  |  | 1,277.0 |  |  | 9,983.9 |
Sales by Channel |  |  |  |  |  |  |  |  |
Corporate | 3,788.9 |  |  | — |  |  | — |  |  | — |  |  | 3,788.9 |
Small Business | — |  |  | 915.6 |  |  | — |  |  | — |  |  | 915.6 |
Government | — |  |  | — |  |  | 1,029.5 |  |  | — |  |  | 1,029.5 |
Education | — |  |  | — |  |  | 2,055.4 |  |  | — |  |  | 2,055.4 |
Healthcare | — |  |  | — |  |  | 917.5 |  |  | — |  |  | 917.5 |
Other | — |  |  | — |  |  | — |  |  | 1,277.0 |  |  | 1,277.0 |
Total Net sales | 3,788.9 |  |  | 915.6 |  |  | 4,002.4 |  |  | 1,277.0 |  |  | 9,983.9 |
Timing of Revenue Recognition |  |  |  |  |  |  |  |  |
Transferred at a point in time where CDW is principal | 3,416.9 |  |  | 853.6 |  |  | 3,779.4 |  |  | 1,127.8 |  |  | 9,177.7 |
Transferred at a point in time where CDW is agent | 233.0 |  |  | 52.8 |  |  | 143.1 |  |  | 43.2 |  |  | 472.1 |
Transferred over time where CDW is principal | 139.0 |  |  | 9.2 |  |  | 79.9 |  |  | 106.0 |  |  | 334.1 |
Total Net sales | $ | 3,788.9 |  |  | $ | 915.6 |  |  | $ | 4,002.4 |  |  | $ | 1,277.0 |  |  | $ | 9,983.9 |
(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.
| Six Months Ended June 30, 2020
| Corporate |  | Small Business |  | Public |  | Other |  | Total
Geography(1) |  |  |  |  |  |  |  |  |
United States | $ | 3,450.7 |  |  | $ | 693.6 |  |  | $ | 3,547.4 |  |  | $ | 10.0 |  |  | $ | 7,701.7 |
Rest of World | 17.8 |  |  | — |  |  | — |  |  | 1,035.4 |  |  | 1,053.2 |
Total Net sales | 3,468.5 |  |  | 693.6 |  |  | 3,547.4 |  |  | 1,045.4 |  |  | 8,754.9 |
Major Product and Services(2) |  |  |  |  |  |  |  |  |
Hardware | 2,729.5 |  |  | 572.8 |  |  | 2,940.0 |  |  | 776.3 |  |  | 7,018.6 |
Software | 511.1 |  |  | 95.4 |  |  | 457.6 |  |  | 161.6 |  |  | 1,225.7 |
Services | 193.1 |  |  | 15.4 |  |  | 134.1 |  |  | 102.8 |  |  | 445.4 |
Other(3) | 34.8 |  |  | 10.0 |  |  | 15.7 |  |  | 4.7 |  |  | 65.2 |
Total Net sales | 3,468.5 |  |  | 693.6 |  |  | 3,547.4 |  |  | 1,045.4 |  |  | 8,754.9 |
Sales by Channel |  |  |  |  |  |  |  |  |
Corporate | 3,468.5 |  |  | — |  |  | — |  |  | — |  |  | 3,468.5 |
Small Business | — |  |  | 693.6 |  |  | — |  |  | — |  |  | 693.6 |
Government | — |  |  | — |  |  | 1,288.2 |  |  | — |  |  | 1,288.2 |
Education | — |  |  | — |  |  | 1,353.0 |  |  | — |  |  | 1,353.0 |
Healthcare | — |  |  | — |  |  | 906.2 |  |  | — |  |  | 906.2 |
Other | — |  |  | — |  |  | — |  |  | 1,045.4 |  |  | 1,045.4 |
Total Net sales | 3,468.5 |  |  | 693.6 |  |  | 3,547.4 |  |  | 1,045.4 |  |  | 8,754.9 |
Timing of Revenue Recognition |  |  |  |  |  |  |  |  |
Transferred at a point in time where CDW is principal | 3,128.2 |  |  | 647.4 |  |  | 3,258.8 |  |  | 925.2 |  |  | 7,959.6 |
Transferred at a point in time where CDW is agent | 219.8 |  |  | 40.9 |  |  | 120.6 |  |  | 28.0 |  |  | 409.3 |
Transferred over time where CDW is principal | 120.5 |  |  | 5.3 |  |  | 168.0 |  |  | 92.2 |  |  | 386.0 |
Total Net sales | $ | 3,468.5 |  |  | $ | 693.6 |  |  | $ | 3,547.4 |  |  | $ | 1,045.4 |  |  | $ | 8,754.9 |
(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)Amounts have been reclassified for changes in individual product classifications to conform to the presentation for the six months ended June 30, 2021. (3)Includes items such as delivery charges to customers. The following table presents Net sales by major category for the three and six months ended June 30, 2021 and 2020. Categories are based upon internal classifications.
| Three Months Ended June 30,
| 2021 |  | 2020(1)
| Net Sales |  | Percentage of Total Net Sales |  | Net Sales |  | Percentage of Total Net Sales
Notebooks/Mobile Devices | $ | 1,710.1 |  |  | 33.2 | % |  | $ | 1,427.7 |  |  | 32.7 | %
Netcomm Products | 483.8 |  |  | 9.4 |  |  | 471.2 |  |  | 10.8 |
Desktops | 293.7 |  |  | 5.7 |  |  | 254.4 |  |  | 5.8 |
Video | 410.5 |  |  | 8.0 |  |  | 246.8 |  |  | 5.7 |
Enterprise and Data Storage (Including Drives) | 242.5 |  |  | 4.7 |  |  | 200.1 |  |  | 4.6 |
Other Hardware | 1,085.0 |  |  | 21.1 |  |  | 949.0 |  |  | 21.7 |
Total Hardware | 4,225.6 |  |  | 82.1 |  |  | 3,549.2 |  |  | 81.3 |
Software(2) | 637.8 |  |  | 12.4 |  |  | 572.3 |  |  | 13.1 |
Services(2) | 251.7 |  |  | 4.9 |  |  | 214.8 |  |  | 4.9 |
Other(3) | 31.3 |  |  | 0.6 |  |  | 29.4 |  |  | 0.7 |
Total Net sales | $ | 5,146.4 |  |  | 100.0 | % |  | $ | 4,365.7 |  |  | 100.0 | %
| Six Months Ended June 30,
| 2021 |  | 2020(1)
| Net Sales |  | Percentage of Total Net Sales |  | Net Sales |  | Percentage of Total Net Sales
Notebooks/Mobile Devices | $ | 3,302.8 |  |  | 33.1 | % |  | $ | 2,538.2 |  |  | 29.0 | %
Netcomm Products | 938.4 |  |  | 9.4 |  |  | 926.0 |  |  | 10.6 |
Desktops | 558.9 |  |  | 5.6 |  |  | 636.7 |  |  | 7.3 |
Video | 736.5 |  |  | 7.4 |  |  | 560.3 |  |  | 6.4 |
Enterprise and Data Storage (Including Drives) | 502.1 |  |  | 5.0 |  |  | 440.9 |  |  | 5.0 |
Other Hardware | 2,156.5 |  |  | 21.6 |  |  | 1,916.5 |  |  | 21.9 |
Total Hardware | 8,195.2 |  |  | 82.1 |  |  | 7,018.6 |  |  | 80.2 |
Software(2) | 1,243.3 |  |  | 12.5 |  |  | 1,225.7 |  |  | 14.0 |
Services(2) | 485.6 |  |  | 4.9 |  |  | 445.4 |  |  | 5.1 |
Other(3) | 59.8 |  |  | 0.5 |  |  | 65.2 |  |  | 0.7 |
Total Net sales | $ | 9,983.9 |  |  | 100.0 | % |  | $ | 8,754.9 |  |  | 100.0 | %
(1)Amounts have been reclassified for changes in individual product classifications to conform to the presentation for the three and six months ended June 30, 2021. (2)Certain software and services revenues are recorded on a net basis as the Company is acting as an agent in the transaction. As a result, the category percentage of net revenues is not representative of the category percentage of gross profits. (3)Includes items such as delivery charges to customers.

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