XML 55 R44.htm IDEA: XBRL DOCUMENT v3.21.2
Revenue Recognition - Disaggregation of Revenue by Major Products/Service Offerings (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Revenue by Major Products/Service Offerings        
Total Revenue $ 17,618 $ 17,560 $ 54,093 $ 53,253
External Revenue        
Revenue by Major Products/Service Offerings        
Total Revenue 17,601 17,510 54,047 53,090
Other revenue        
Revenue by Major Products/Service Offerings        
Revenue 18 50 45 163
Cloud & Cognitive Software | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 5,692 5,553 17,227 16,540
Total Revenue 5,692 5,553 17,227 16,540
Global Business Services | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 4,427 3,965 13,002 11,992
Total Revenue 4,427 3,965 13,002 11,992
Global Technology Services | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 6,154 6,462 18,866 19,245
Total Revenue 6,154 6,462 18,866 19,245
Systems | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 1,107 1,257 4,251 4,477
Total Revenue 1,107 1,257 4,251 4,477
Global Financing | External Revenue        
Revenue by Major Products/Service Offerings        
Financial Services Revenue 220 273 702 837
Total Revenue 220 273 702 837
Cloud & Data Platforms | Cloud & Cognitive Software | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 3,046 2,775 9,032 8,108
Cognitive Applications | Cloud & Cognitive Software | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 1,314 1,317 3,938 3,745
Transaction Processing Platforms | Cloud & Cognitive Software | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 1,332 1,461 4,257 4,687
Consulting | Global Business Services | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 2,292 1,966 6,717 5,973
Application Management | Global Business Services | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 1,847 1,758 5,439 5,332
Global Process Services | Global Business Services | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 287 240 846 687
Infrastructure & Cloud Services | Global Technology Services | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 4,681 4,933 14,370 14,663
Technology Support Services | Global Technology Services | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 1,473 1,528 4,496 4,582
Systems Hardware | Systems | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue 796 919 3,294 3,404
Operating Systems Software | Systems | External Revenue        
Revenue by Major Products/Service Offerings        
Revenue $ 312 $ 338 $ 957 $ 1,074