Acquisitions/Divestitures (Details) $ / shares in Units, $ in Billions |
3 Months Ended | |
|---|---|---|
|
Jul. 09, 2019
USD ($)
$ / shares
|
Mar. 31, 2020
item
|
|
| Acquisitions | ||
| Percentage of business acquired (as a percent) | 100.00% | |
| Red Hat, Inc. | ||
| Acquisitions | ||
| Percentage of business acquired (as a percent) | 100.00% | |
| Cash paid to acquiree shareholders (in dollars per share) | $ / shares | $ 190 | |
| Aggregate acquisitions cost | $ 35 | |
| Businesses acquired, cash consideration | $ 34 | |
| Cloud & Cognitive Software | ||
| Acquisitions | ||
| Number of acquisitions | item | 1 |