Residual Value Obligation and Deferred Lease Revenue (Detail) - Truck, Parts and Other - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Property Subject to or Available for Operating Lease [Line Items]
Residual value guarantees	$ 358.4	$ 439.6
Deferred lease revenues	99.0	147.7
Residual value guarantees and deferred revenues, Total	$ 457.4	$ 587.3

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_
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- Definition

Amount, after accumulated amortization, of deferred lease income. Includes, but is not limited to, amount paid in advance by lessee.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15)
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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- 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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