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:
|  |  |  | At December 31, | At December 31, |
| --- | --- | --- | --- | --- |
|  |  |  | 2018 | 2017 (a) |
| Current assets: | Cash and cash equivalents |  | $1,694 | $1,482 |
| Current assets: | Short-term investments |  | 2,256 | 2,316 |
| Current assets: | Receivables, less allowance for doubtful accounts (2018—$8; 2017—$7) |  | 1,346 | 1,340 |
| Current assets: | Aircraft fuel, spare parts and supplies, less obsolescence allowance (2018—$412; 2017—$354) |  | 985 | 924 |
| Current assets: | Prepaid expenses and other |  | 913 | 1,071 |
| Current assets: | Total current assets |  | 7,194 | 7,133 |
| Owned— | Operating property and equipment: | Flight equipment | 31,607 | 28,692 |
| Owned— | Operating property and equipment: | Other property and equipment | 7,919 | 6,946 |
| Owned— | Operating property and equipment: | Total owned property and equipment | 39,526 | 35,638 |
| Owned— | Operating property and equipment: | Less—Accumulated depreciation and amortization | (12,760) | (11,159) |
| Owned— | Operating property and equipment: | Total owned property and equipment, net | 26,766 | 24,479 |
| Owned— | Operating property and equipment: | Purchase deposits for flight equipment | 1,177 | 1,344 |
| Capital leases— | Flight equipment |  | 1,029 | 1,151 |
| Capital leases— | Other property and equipment |  | 11 | 11 |
| Capital leases— | Total capital leases |  | 1,040 | 1,162 |
| Capital leases— | Less—Accumulated amortization |  | (654) | (777) |
| Capital leases— | Total capital leases, net |  | 386 | 385 |
| Capital leases— | Total operating property and equipment, net |  | 28,329 | 26,208 |
| Other assets: | Goodwill |  | 4,523 | 4,523 |
| Other assets: | Intangibles, less accumulated amortization (2018—$1,380; 2017—$1,313) |  | 3,159 | 3,539 |
| Other assets: | Restricted cash |  | 105 | 91 |
| Other assets: | Notes receivable, net |  | 516 | 46 |
| Other assets: | Investments in affiliates and other, net |  | 966 | 806 |
| Other assets: | Total other assets |  | 9,269 | 9,005 |
| Other assets: | Total assets |  | $44,792 | $42,346 |
Question:
How much was the total current assets of United Holdings in 2018?
Answer:
7,194