| Component: (Network and Table) | |
|---|---|
| Network | 1051 - Disclosure - Inventories Table (Detail) (http://www.paccar.com/taxonomy/role/DisclosureInventoriesTable) |
| Table | Inventory, Current [Table] |
| Reporting Entity [Axis] | 0000075362 (http://www.sec.gov/CIK) |
| Statement, Business Segments | Truck, Parts and Other |
| Inventory [Line Items] | Period [Axis] | |
|---|---|---|
2016-12-31 | 2015-12-31 | |
Finished products | ||
Work in process and raw materials | ||
Inventory, Gross, Total | ||
Less LIFO reserve | ( | ( |
Inventories, net | 727,800,000 | 796,500,000 |