| Schedule of disaggregation of revenue |
| | | | | | | | ($ in millions) | | | | | | For the year ended December 31: | | 2019 | | 2018 | | Cognitive Applications | | $ | 5,765 | | $ | 5,633 | * | Cloud & Data Platforms | | | 9,499 | | | 8,603 | * | Transaction Processing Platforms | | | 7,936 | | | 7,974 | * | Total Cloud & Cognitive Software | | $ | 23,200 | | $ | 22,209 | * | Consulting | | $ | 7,993 | | $ | 7,705 | | Application Management | | | 7,646 | | | 7,852 | | Global Process Services | | | 995 | | | 1,037 | * | Total Global Business Services | | $ | 16,634 | | $ | 16,595 | * | Infrastructure & Cloud Services | | $ | 20,736 | | $ | 22,185 | * | Technology Support Services | | | 6,625 | | | 6,961 | | Total Global Technology Services | | $ | 27,361 | | $ | 29,146 | * | Systems Hardware | | $ | 5,918 | | $ | 6,363 | | Operating Systems Software | | | 1,686 | | | 1,671 | | Total Systems | | $ | 7,604 | | $ | 8,034 | | Global Financing** | | $ | 1,400 | | $ | 1,590 | | Other | | $ | 948 | | $ | 2,018 | * | Total Revenue | | $ | 77,147 | | $ | 79,591 | |
* Recast to conform to 2019 presentation. ** Contains lease and loan/working capital financing arrangements which are not subject to the guidance on revenue from contracts with customers.
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| Schedule of disaggregation of revenue by geography |
| | | | | | | ($ in millions) | | | | | For the year ended December 31: | | 2019 | | 2018 | Americas | | $ | 36,274 | | $ | 36,994 | Europe/Middle East/Africa | | | 24,443 | | | 25,491 | Asia Pacific | | | 16,430 | | | 17,106 | Total | | $ | 77,147 | | $ | 79,591 |
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| Schedule of reconciliation of contract balances |
| | | | | | | ($ in millions) | | | | | At December 31: | | 2019 | | 2018 | Notes and accounts receivable—trade (net of allowances of $299 in 2019 and $309 in 2018) | | $ | 7,870 | | $ | 7,432 | Contract assets (1) | | | 492 | | | 470 | Deferred income (current) | | | 12,026 | | | 11,165 | Deferred income (noncurrent) | | | 3,851 | | | 3,445 |
| (1) | Included within prepaid expenses and other current assets in the Consolidated Balance Sheet. |
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| Schedule of deferred contract costs |
| | | | | | | ($ in millions) | | | | | | At December 31: | | 2019 | | 2018 | Capitalized costs to obtain a contract | | $ | 609 | | $ | 717 | Deferred costs to fulfill a contract | | | | | | | Deferred setup costs | | | 1,939 | | | 2,085 | Other deferred fulfillment costs | | | 1,820 | | | 2,173 | Total deferred costs (1) | | $ | 4,368 | | $ | 4,975 |
| (1) | Of the total deferred costs, $1,896 million was current and $2,472 million was noncurrent at December 31, 2019 and $2,300 million was current and $2,676 million was noncurrent at December 31, 2018. |
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