Additional Balance Sheet and Cash Flow Information (Reconciliation Of Net Income To Net Cash Used By Operating Activities) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2018	Mar. 26, 2017
Cash flows from operating activities:
Net income	$ 174,763	$ 186,369
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of intangibles	62,473	54,900
Amortization of deferred loan origination costs	20,116	20,078
Amortization of financing origination fees	2,028	2,076
Pension and Other Postretirement Benefits Cost (Reversal of Cost)	9,747	7,475
Employee benefit plan contributions and payments	(5,486)	(29,957)
Stock compensation expense	7,962	6,992
Net change in wholesale finance receivables related to sales	(239,902)	(317,087)
Provision for credit losses	30,052	43,589
Deferred income taxes	3,188	3,989
Other, net	(1,902)	(5,334)
Changes in current assets and liabilities:
Accounts receivable, net	(17,688)	(39,230)
Finance receivables - accrued interest and other	4,758	5,142
Inventories	(21,542)	23,476
Accounts payable and accrued liabilities	148,923	182,928
Derivative instruments	702	3,120
Other	13,402	11,413
Total adjustments	16,831	(26,430)
Net cash provided by operating activities	$ 191,594	$ 159,939