Finance Receivables (Changes In Allowance For Credit Losses On Finance Receivables) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for Loan and Lease Losses	$ 27,233	$ 21,497	$ 68,655	$ 57,789
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period			127,364	110,693
Charge-offs	(30,203)	(26,093)	(83,939)	(72,454)
Recoveries	9,122	8,244	33,303	29,975
Balance, end of period	145,383	126,003	145,383	126,003
Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for Loan and Lease Losses	28,309	23,612	67,742	57,078
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period			122,025	106,063
Charge-offs	(30,203)	(26,093)	(83,939)	(72,454)
Recoveries	9,122	8,244	33,303	29,975
Balance, end of period	139,131	120,662	139,131	120,662
Wholesale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for Loan and Lease Losses	(1,076)	(2,115)	913	711
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period			5,339	4,630
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	$ 6,252	$ 5,341	$ 6,252	$ 5,341