Residual Value Obligation and Deferred Lease Revenue (Detail) - Truck, Parts and Other - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Property Subject to or Available for Operating Lease [Line Items]
Residual value guarantees	$ 162.3	$ 247.0
Residual value guarantees and deferred revenues, Total	209.2	329.1
Deferred Lease Revenue
Property Subject to or Available for Operating Lease [Line Items]
Deferred lease revenues	$ 46.9	$ 82.1

Residual value obligation including both short-term and long-term obligation.

No definition available.

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- Definition

Total amount of residual value guarantees and deferred lease revenues.

+ References

No definition available.

+ Details

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Namespace Prefix:	pcar_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(26)(c))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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