v3.26.1
Segment Reporting Information by Segment (Parenthetical) (Detail)
$ in Millions
3 Months Ended
Mar. 31, 2025
USD ($)
Segment Reporting [Abstract]
Expenses related to litigation
$ 350.0
X
- Definition
Expenses related to litigation.
+ References
No definition available.
+ Details
Name:
pcar_ExpensesRelatedToLitigation
Namespace Prefix:
pcar_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_SegmentReportingAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration