Residual Value Obligation and Deferred Lease Revenue (Detail) (Truck, Parts and Other, USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Truck, Parts and Other
Property Subject to or Available for Operating Lease [Line Items]
Residual value guarantees	$ 629.1	$ 653.9
Deferred lease revenues	341.8	439.9
Residual value guarantees and deferred revenues, Total	$ 970.9	$ 1,093.8

This element represents revenue received, but not recognized for financial reporting purposes. Such deferred revenue may consist of and include amounts paid in advance by lessees and is net of the accumulated amortization of such amounts that to date have been recognized in revenue.

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

-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=6879938&loc=d3e572229-122910

Name:	us-gaap_DeferredRevenueLeasesNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant