| Component: (Network and Table) | |
|---|---|
| Network | 1049 - Disclosure - Inventories Table (Detail) (http://www.paccar.com/taxonomy/role/DisclosureInventoriesTable) |
| Table | Inventory, Current [Table] |
| Reporting Entity [Axis] | 0000075362 (http://www.sec.gov/CIK) |
| Legal Entity [Axis] | Entity [Domain] |
| Statement Business Segments [Axis] | Truck Parts And Other [Member] |
| Inventory [Line Items] | Period [Axis] | |
|---|---|---|
2013-12-31 | 2012-12-31 | |
Finished products | ||
Work in process and raw materials | ||
Inventory, Gross, Total | ||
Less LIFO reserve | ( | ( |
Inventories, net | 813,600,000 | 782,400,000 |