Table:
|  |  | For the Year Ended |  |
| --- | --- | --- | --- |
|  | January 31, 2020 | February 1, 2019 | February 2, 2018 |
| Revenue: |  |  |  |
| License | $3,181 | $3,042 | $2,628 |
| Subscription and SaaS | 1,877 | 1,303 | 927 |
| Total license and subscription and SaaS | 5,058 | 4,345 | 3,555 |
| Services: |  |  |  |
| Software maintenance | 4,754 | 4,351 | 3,919 |
| Professional services | 999 | 917 | 862 |
| Total services | 5,753 | 5,268 | 4,781 |
| Total revenue | $10,811 | $9,613 | $8,336 |
Paragraphs:
R. Segment Information
VMware operates in one reportable operating segment, thus all required financial segment information is included in the consolidated financial statements. Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and assessing performance. VMware’s chief operating decision maker allocates resources and assesses performance based upon discrete financial information at the consolidated level.
Revenue by type during the periods presented was as follows (table in millions):
Question:
Which years does the table provide information for revenue by type?
Answer: 2020, 2019, 2018