CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Statement of Cash Flows [Abstract]
Net cash provided by operating activities	$ 389,677	$ 288,242
Cash flows from investing activities:
Capital expenditures	(66,589)	(60,078)
Origination of finance receivables	(1,653,232)	(1,583,572)
Collections on finance receivables	1,422,688	1,435,790
Purchases of marketable securities	(4,998)	(4,993)
Sales and redemptions of marketable securities	6,003	23,046
Other	6,667	0
Net cash used by investing activities	(289,461)	(189,807)
Cash flows from financing activities:
Proceeds from issuance of medium-term notes	0	397,373
Repayments of medium-term notes	(27,858)	0
Proceeds from securitization debt	647,516	91,030
Repayments of securitization debt	(423,455)	(839,401)
Net increase (decrease) in credit facilities and unsecured commercial paper	230,761	(46,629)
Borrowings of asset-backed commercial paper	47,061	0
Repayments of asset-backed commercial paper	(37,642)	0
Net change in restricted cash	(23,996)	41,091
Dividends paid	(94,213)	(71,645)
Purchase of common stock for treasury	(208,699)	(172,742)
Excess tax benefits from share-based payments	16,338	15,730
Issuance of common stock under employee stock option plans	24,677	35,337
Net cash provided (used) by financing activities	150,490	(549,856)
Effect of exchange rate changes on cash and cash equivalents	(18,154)	(4,033)
Net increase (decrease) in cash and cash equivalents	232,552	(455,454)
Cash and cash equivalents:
Cash and cash equivalents—beginning of period	1,068,138	1,526,950
Net increase (decrease) in cash and cash equivalents	232,552	(455,454)
Cash and cash equivalents—end of period	$ 1,300,690	$ 1,071,496