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REVENUE | 12 Months Ended
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Dec. 31, 2021
REVENUE [Abstract] |
REVENUE | REVENUE Grainger serves a large number of customers in diverse industries, which are subject to different economic and market specific factors. Revenue is primarily comprised of MRO product sales and related activities, such as freight and services. The Company's presentation of revenue by reportable segment and industry most reasonably depicts how the nature, amount, timing and uncertainty of the Company's revenue and cash flows are affected by economic and market-specific factors. In addition, the segments have unique underlying risks associated with customer purchasing behaviors. In the High-Touch Solutions N.A. segment, more than two-thirds of revenue is derived from customer contracts and in the Endless Assortment segment, a majority of revenue is derived from spot buys. The following table presents the Company's percentage of revenue by reportable segment and by major customer industry:
| Twelve Months Ended December 31,
| 2021 |  | 2020 |  | 2019
| High-Touch Solutions N.A. |  | Endless Assortment |  | Total Company (2) |  | High-Touch Solutions N.A. |  | Endless Assortment |  | Total Company (2) |  | High-Touch Solutions N.A. |  | Endless Assortment |  | Total Company (2)
Contractors | 9 | % |  | 16 | % |  | 10 | % |  | 9 | % |  | 15 | % |  | 10 | % |  | 10 | % |  | 16 | % |  | 10 | %
Commercial | 9 |  |  | 15 |  |  | 10 |  |  | 8 |  |  | 15 |  |  | 9 |  |  | 10 |  |  | 15 |  |  | 11 |
Government | 18 |  |  | 3 |  |  | 15 |  |  | 20 |  |  | 3 |  |  | 16 |  |  | 17 |  |  | 3 |  |  | 14 |
Healthcare | 7 |  |  | 2 |  |  | 6 |  |  | 9 |  |  | 2 |  |  | 7 |  |  | 7 |  |  | 1 |  |  | 6 |
Manufacturing | 30 |  |  | 29 |  |  | 30 |  |  | 29 |  |  | 29 |  |  | 30 |  |  | 31 |  |  | 31 |  |  | 31 |
Retail/Wholesale | 10 |  |  | 10 |  |  | 10 |  |  | 9 |  |  | 10 |  |  | 9 |  |  | 8 |  |  | 10 |  |  | 8 |
Transportation | 5 |  |  | 3 |  |  | 5 |  |  | 5 |  |  | 3 |  |  | 5 |  |  | 6 |  |  | 3 |  |  | 5 |
Other (1) | 12 |  |  | 22 |  |  | 14 |  |  | 11 |  |  | 23 |  |  | 14 |  |  | 11 |  |  | 21 |  |  | 15 |
Total net sales | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | %
Percent of Total Company Revenue | 78 | % |  | 20 | % |  | 100 | % |  | 78 | % |  | 18 | % |  | 100 | % |  | 79 | % |  | 16 | % |  | 100 | %
(1) Other primarily includes revenue from industries and customers that are not material individually, including agriculture, mining, natural resources and resellers not aligned to a major industry segment.
(2) Total Company includes other businesses, which includes the Cromwell business, as well as the Fabory and China businesses in the periods prior to t heir divestitures in the second and third quarter of 2020, respectively. Other businesses account for approximately 2%, 4% a nd 5% of revenue for the twelve months ended December 31, 2021, 2020 and 2019, respectively.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 + Details
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