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
	Jun. 25, 2017	Jun. 26, 2016	Jun. 25, 2017	Jun. 26, 2016
Cash flows from operating activities:
Net income	$ 258,867	$ 280,431	$ 445,236	$ 530,920
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of intangibles			107,578	100,956
Amortization of deferred loan origination costs			40,771	43,555
Amortization of financing origination fees			4,079	5,146
Pension and Other Postretirement Benefit Expense			14,950	19,005
Employee benefit plan contributions and payments			(37,307)	(35,189)
Stock compensation expense			17,497	15,797
Net change in wholesale finance receivables related to sales			(271,927)	(442,254)
Provision for credit losses	$ 26,217	$ 23,461	69,806	60,584
Gain on off-balance sheet asset-backed securitization			0	(9,269)
Deferred income taxes			178	(3,548)
Other, net			(4,163)	(20,508)
Changes in current assets and liabilities:
Accounts receivable, net			(28,239)	(55,109)
Finance receivables - accrued interest and other			2,067	(125)
Inventories			138,942	225,586
Accounts payable and accrued liabilities			133,120	53,790
Derivative instruments			3,114	(1,474)
Other			(8,634)	(31,573)
Total adjustments			181,832	(74,630)
Net cash provided by operating activities			$ 627,068	$ 456,290