| Schedule of disaggregation of revenue |
| | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | (Dollars in millions) | | 2021 | | 2020 | | 2021 | | 2020 | | Cloud & Data Platforms | | $ | 3,120 | | $ | 2,797 | | $ | 5,986 | | $ | 5,333 | | Cognitive Applications | | | 1,391 | | | 1,246 | | | 2,624 | | | 2,428 | | Transaction Processing Platforms | | | 1,587 | | | 1,706 | | | 2,925 | | | 3,226 | | Total Cloud & Cognitive Software | | $ | 6,098 | | $ | 5,748 | | $ | 11,534 | | $ | 10,987 | | Consulting | | | 2,236 | | | 1,936 | | | 4,425 | | | 4,007 | | Application Management | | | 1,821 | | | 1,734 | | | 3,591 | | | 3,573 | | Global Process Services | | | 284 | | | 221 | | | 559 | | | 447 | | Total Global Business Services | | $ | 4,341 | | $ | 3,890 | | $ | 8,575 | | $ | 8,027 | | Infrastructure & Cloud Services | | | 4,836 | | | 4,813 | | | 9,689 | | | 9,729 | | Technology Support Services | | | 1,506 | | | 1,503 | | | 3,023 | | | 3,054 | | Total Global Technology Services | | $ | 6,342 | | $ | 6,316 | | $ | 12,712 | | $ | 12,783 | | Systems Hardware | | | 1,384 | | | 1,488 | | | 2,498 | | | 2,484 | | Operating Systems Software | | | 333 | | | 365 | | | 646 | | | 736 | | Total Systems | | $ | 1,717 | | $ | 1,852 | | $ | 3,144 | | $ | 3,220 | | Global Financing* | | | 242 | | | 265 | | | 482 | | | 564 | | Other | | | 5 | | | 50 | | | 28 | | | 113 | | Total revenue | | $ | 18,745 | | $ | 18,123 | | $ | 36,474 | | $ | 35,694 | |
* 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 |
| | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | (Dollars in millions) | | 2021 | | 2020 | | 2021 | | 2020 | | Americas | | $ | 8,820 | | $ | 8,450 | | $ | 16,999 | | $ | 16,617 | | Europe/Middle East/Africa | | | 6,038 | | | 5,695 | | | 11,679 | | | 11,212 | | Asia Pacific | | | 3,887 | | | 3,977 | | | 7,797 | | | 7,865 | | Total | | $ | 18,745 | | $ | 18,123 | | $ | 36,474 | | $ | 35,694 | |
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| Schedule of reconciliation of contract balances |
| | | | | | | | | At June 30, | | At December 31, | (Dollars in millions) | | 2021 | | 2020 | Notes and accounts receivable–trade (net of allowances of $300 in 2021 and $351 in 2020) | | $ | 6,827 | | $ | 7,132 | Contract assets* | | | 547 | | | 497 | Deferred income (current) | | | 13,272 | | | 12,833 | Deferred income (noncurrent) | | | 4,113 | | | 4,301 |
* Included within prepaid expenses and other current assets in the Consolidated Balance Sheet.
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