Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
|  | AAG | AAG | American | American |
| --- | --- | --- | --- | --- |
|  | December 31, | December 31, | December 31, | December 31, |
|  | 2019 | 2018 | 2019 | 2018 |
| Cash | $280 | $275 | $267 | $265 |
| Short-term investments | 3,546 | 4,485 | 3,543 | 4,482 |
| Undrawn revolving credit facilities (1) | 3,243 | 2,843 | 3,243 | 2,843 |
| Total available liquidity | $7,069 | $7,603 | $7,053 | $7,590 |
Question:
What was the value of American Airlines' short-term investments by the end of 2019?
Answer:
3,543