Additional Balance Sheet and Cash Flow Information - Reconciliation Of Net Income To Net Cash Used By Operating Activities (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 27, 2021	Mar. 28, 2021	Jun. 28, 2020	Mar. 29, 2020	Jun. 27, 2021	Jun. 28, 2020
Cash flows from operating activities:
Net income (loss)	$ 206,340	$ 259,144	$ (92,217)	$ 69,695	$ 465,484	$ (22,522)
Adjustments to reconcile Net income (loss) to Net cash provided by operating activities:
Depreciation and amortization					81,323	95,454
Amortization of deferred loan origination costs					40,089	33,796
Amortization of financing origination fees					7,224	6,661
Provision for long-term employee benefits					13,366	15,704
Employee benefit plan contributions and payments					(11,055)	(3,678)
Stock compensation expense					23,340	4,568
Net change in wholesale finance receivables related to sales					(129,819)	166,049
Provision for credit losses	$ 16,201		$ 91,179		(6,273)	170,598
Deferred income taxes					12,732	(19,461)
Other, net					(2,065)	(7,756)
Changes in current assets and liabilities:
Accounts receivable, net					(124,738)	(15,747)
Finance receivables – accrued interest and other					9,691	(2,985)
Inventories, net					58,366	163,700
Accounts payable and accrued liabilities					196,606	10,664
Other					10,029	15,158
Total adjustments					178,816	632,725
Net cash provided by operating activities					$ 644,300	$ 610,203