Asset-Backed Financing (Narrative) (Detail)					3 Months Ended			9 Months Ended
	Sep. 29, 2013 Term Asset-Backed Securitization VIEs [Member] Secured Debt [Member] SPEs [Member] USD ($)	Jun. 30, 2013 Term Asset-Backed Securitization VIEs [Member] Secured Debt [Member] SPEs [Member] USD ($)	Sep. 30, 2012 Term Asset-Backed Securitization VIEs [Member] Secured Debt [Member] SPEs [Member] USD ($)	Jul. 01, 2012 Term Asset-Backed Securitization VIEs [Member] Secured Debt [Member] SPEs [Member] USD ($)	Sep. 29, 2013 Line of Credit [Member] Asset-Backed Canadian Commercial Paper Conduit Facility [Member] Variable Interest Entity, Not Primary Beneficiary [Member] USD ($)	Jun. 30, 2013 Line of Credit [Member] Asset-Backed Canadian Commercial Paper Conduit Facility [Member] Variable Interest Entity, Not Primary Beneficiary [Member] USD ($)	Sep. 30, 2012 Line of Credit [Member] Asset-Backed Canadian Commercial Paper Conduit Facility [Member] Variable Interest Entity, Not Primary Beneficiary [Member] USD ($)	Sep. 29, 2013 Line of Credit [Member] Asset-Backed Canadian Commercial Paper Conduit Facility [Member] Foreign Line of Credit [Member] CAD	Sep. 29, 2013 Third-party Bank [Member] Line of Credit [Member] Asset-Backed U.S. Commercial Paper Conduit Facility VIE [Member] SPEs [Member] USD ($)	Dec. 31, 2012 Third-party Bank [Member] Line of Credit [Member] Asset-Backed U.S. Commercial Paper Conduit Facility VIE [Member] SPEs [Member] USD ($)	Sep. 30, 2012 Third-party Bank [Member] Line of Credit [Member] Asset-Backed U.S. Commercial Paper Conduit Facility VIE [Member] SPEs [Member] USD ($)
Variable Interest Entity [Line Items]
Company issued secured notes	$ 0	$ 650,000,000	$ 675,300,000	$ 89,500,000
Unaccreted premium	500,000		1,500,000
Total aggregate commitment								200,000,000	600,000,000
Debt Instrument, Term								5 years
Borrowings outstanding under conduit facility									0	0	0
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount					34,000,000
Principal Amount Outstanding on Loans Securitized or Asset-backed Financing Arrangement, Transfers During Period					26,300,000	53,800,000	209,100,000
Cash Flows Between Transferor and Transferee, Proceeds from New Transfers					$ 23,100,000	$ 47,100,000	$ 183,000,000