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