v3.25.3

Sales and Revenues - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Entity Wide Information Revenue From External Customer [Line Items]
Payment to acquire commitment value			$ 613,100,000
Payment to acquire commitment related to lease value			48,500,000
Financial Services
Entity Wide Information Revenue From External Customer [Line Items]
Total operating lease revenue	$ 155,300,000	$ 163,700,000	462,700,000	$ 501,200,000
Financing receivable, recorded investment, 90 days past due and still accruing	0		0		$ 0
Trucks \| Truck Sales
Entity Wide Information Revenue From External Customer [Line Items]
Total operating lease revenue	4,500,000	$ 7,700,000	11,800,000	$ 25,600,000
Deferred revenue	23,900,000		23,900,000
Deferred revenue recognize, in 2025	3,100,000		3,100,000
Deferred revenue recognize, in 2026	10,200,000		10,200,000
Deferred revenue recognize, in 2027	6,500,000		6,500,000
Deferred revenue recognize, in 2028	2,600,000		2,600,000
Deferred revenue recognize, in 2029	$ 1,500,000		$ 1,500,000
Minimum
Entity Wide Information Revenue From External Customer [Line Items]
Lease and guarantee periods (in years)			3 years
Minimum \| Financial Services
Entity Wide Information Revenue From External Customer [Line Items]
Finance leases, lease term			3 years
Operating lease term	3 years		3 years
Maximum
Entity Wide Information Revenue From External Customer [Line Items]
Lease and guarantee periods (in years)			5 years
Warranty period			5 years
Maximum \| Financial Services
Entity Wide Information Revenue From External Customer [Line Items]
Finance leases, lease term			5 years
Operating lease term	5 years		5 years

Deferred revenue recognize remainder of fiscal year.

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- Definition

Deferred revenue recognize, year five.

+ References

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- Definition

Deferred revenue recognize, year four.

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- Definition

Deferred revenue recognize, year three.

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- Definition

Deferred revenue recognize, year two.

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- Definition

Total commitment to acquire trucks at a guaranteed value for contracts accounted for as a lease.

+ References

No definition available.

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- Definition

Total commitment to acquire trucks at a guaranteed value for contracts accounted for as a sale.

+ References

No definition available.

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- Definition

Product support warranty and contract term.

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No definition available.

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- Definition

Property subject to operating lease, lease period.

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No definition available.

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- Definition

Retail direct financing leases and sales-type finance leases, term of contract.

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No definition available.

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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.

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- Definition

Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

+ References

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- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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PACCAR INC 10-Q