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		6 Months Ended
	Jul. 01, 2018	Jun. 25, 2017	Jul. 01, 2018	Jun. 25, 2017
Cash flows from operating activities:
Net income	$ 242,338	$ 258,867	$ 417,101	$ 445,236
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of intangibles			130,061	107,578
Amortization of deferred loan origination costs			39,396	40,771
Amortization of financing origination fees			4,133	4,079
Pension and Other Postretirement Benefits Cost (Reversal of Cost)			18,954	14,950
Employee benefit plan contributions and payments			(6,422)	(37,307)
Stock compensation expense			19,081	17,497
Net change in wholesale finance receivables related to sales			(171,195)	(271,927)
Provision for credit losses	$ 18,880	$ 26,217	48,932	69,806
Deferred income taxes			1,515	178
Other, net			20,894	(4,163)
Changes in current assets and liabilities:
Accounts receivable, net			(14,882)	(28,239)
Finance receivables - accrued interest and other			4,228	2,067
Inventories			63,957	138,942
Accounts payable and accrued liabilities			161,101	133,120
Derivative instruments			(136)	3,114
Other			(859)	(8,634)
Total adjustments			318,758	181,832
Net cash provided by operating activities			$ 735,859	$ 627,068