Finance Receivables (Changes In Allowance For Credit Losses On Finance Receivables) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 25, 2011	Sep. 30, 2012	Sep. 25, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period	$ 114,248	$ 144,404	$ 125,449	$ 173,589
Provision for credit losses	9,069	6,189	12,823	5,005
Charge-offs	19,873	28,809	62,779	87,233
Recoveries	9,682	10,835	37,633	41,258
Balance, end of period	113,126	132,619	113,126	132,619
Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period	106,180	130,948	116,112	157,791
Provision for credit losses	9,869	11,833	14,892	12,676
Charge-offs	19,873	28,636	62,779	86,730
Recoveries	9,682	10,835	37,633	41,243
Balance, end of period	105,858	124,980	105,858	124,980
Wholesale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period	8,068	13,456	9,337	15,798
Provision for credit losses	(800)	(5,644)	(2,069)	(7,671)
Charge-offs	0	173	0	503
Recoveries	0	0	0	15
Balance, end of period	$ 7,268	$ 7,639	$ 7,268	$ 7,639