Table:
|  |  | Fiscal Year End |
| --- | --- | --- |
|  | 2019 | 2018 |
|  |  | (in millions) |
| Property, plant, and equipment, gross: |  |  |
| Land and improvements | $  152 | $  171 |
| Buildings and improvements | 1,393 | 1,379 |
| Machinery and equipment | 7,298 | 7,124 |
| Construction in process | 637 | 724 |
|  | 9,480 | 9,398 |
| Accumulated depreciation | (5,906) | (5,901) |
| Property, plant, and equipment, net | $  3,574 | $  3,497 |
Paragraphs:
7. Property, Plant, and Equipment, Net
Net property, plant, and equipment consisted of the following:
Depreciation expense was $510 million, $487 million, and $442 million in fiscal 2019, 2018, and 2017, respectively.
Question:
What were the components under Property, plant, and equipment, gross?
Answer: Land and improvements, Buildings and improvements, Machinery and equipment, Construction in process