CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 24, 2017
Cash flows from operating activities:
Net cash provided by operating activities	$ 1,122,555	$ 949,075
Cash flows from investing activities:
Capital expenditures	(119,845)	(114,022)
Origination of finance receivables	(3,039,160)	(2,927,372)
Collections on finance receivables	2,564,695	2,480,122
Other	(21,753)	7,272
Net cash used by investing activities	(616,063)	(554,000)
Cash flows from financing activities:
Proceeds from issuance of medium-term notes	1,144,018	893,668
Repayments of medium-term notes	(877,488)	(400,000)
Repayments of securitization debt	(224,507)	(367,298)
Borrowings of asset-backed commercial paper	120,903	371,253
Repayments of asset-backed commercial paper	156,258	129,690
Net increase (decrease) in credit facilities and unsecured commercial paper	102,154	(225,038)
Dividends paid	(186,105)	(190,121)
Purchase of common stock for treasury	(195,998)	(465,167)
Issuance of common stock under employee stock option plans	3,157	7,884
Net cash used by financing activities	(270,124)	(504,509)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(12,567)	28,817
Net increase (decrease) in cash, cash equivalents and restricted cash	223,801	(80,617)
Cash, cash equivalents and restricted cash:
Cash, cash equivalents and restricted cash—beginning of period	746,210	827,131
Net increase (decrease) in cash, cash equivalents and restricted cash	223,801	(80,617)
Cash, cash equivalents and restricted cash—end of period	970,011	746,514
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	926,992	683,134
Restricted cash	36,471	52,209
Restricted cash included in other long-term assets	$ 6,548	$ 11,171