Fair Value Of Financial Instruments (Summary Of Fair Value And Carrying Value Of Company Financial Instruments) (Detail) - USD ($) $ in Thousands	Jun. 28, 2015	Dec. 31, 2014	Jun. 29, 2014
Assets:
Restricted cash	$ 136,760	$ 98,627	$ 154,681
Fair Value [Member]
Assets:
Cash equivalents	1,247,579	906,680	999,346
Marketable securities	90,214	91,140	91,381
Derivatives	26,501	32,244	3,159
Finance receivables, net	7,251,671	6,519,500	6,917,698
Restricted cash	162,211	122,052	154,681
Liabilities:
Derivatives	986	2,027	1,478
Carrying Value [Member]
Assets:
Cash equivalents	1,247,579	906,680	999,346
Marketable securities	90,214	91,140	91,381
Derivatives	26,501	32,244	3,159
Finance receivables, net	7,148,495	6,432,881	6,818,917
Restricted cash	162,211	122,052	154,681
Liabilities:
Derivatives	986	2,027	1,478
Unsecured Commercial Paper [Member] \| Fair Value [Member]
Liabilities:
Debt Instrument, Fair Value Disclosure	114,983	731,786	619,622
Unsecured Commercial Paper [Member] \| Carrying Value [Member]
Liabilities:
Debt Instrument, Fair Value Disclosure	114,983	731,786	619,622
Asset-Backed Canadian Commercial Paper Conduit Facility [Member] \| Fair Value [Member]
Liabilities:
Debt Instrument, Fair Value Disclosure	160,940	166,912	173,224
Asset-Backed Canadian Commercial Paper Conduit Facility [Member] \| Carrying Value [Member]
Liabilities:
Debt Instrument, Fair Value Disclosure	160,940	166,912	173,224
Medium-term Notes [Member] \| Fair Value [Member]
Liabilities:
Debt Instrument, Fair Value Disclosure	4,077,952	3,502,536	3,049,735
Medium-term Notes [Member] \| Carrying Value [Member]
Liabilities:
Debt Instrument, Fair Value Disclosure	3,933,698	3,334,398	2,853,232
Secured Debt [Member] \| Fair Value [Member]
Liabilities:
Debt Instrument, Fair Value Disclosure	2,016,232	1,270,656	1,717,287
Secured Debt [Member] \| Carrying Value [Member]
Liabilities:
Debt Instrument, Fair Value Disclosure	$ 2,017,079	$ 1,271,533	$ 1,712,855

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date.

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The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

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