Finance Receivables (Allowance For Credit Losses And Finance Receivables By Portfolio Individually And Collectively Evaluated For Impairment) (Detail) - USD ($)	Jun. 28, 2015	Mar. 29, 2015	Dec. 31, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 0		$ 0	$ 0
Collectively evaluated for impairment	139,231,000		127,364,000	122,355,000
Total allowance for credit losses	139,231,000	$ 132,820,000	127,364,000	122,355,000	$ 114,529,000	$ 110,693,000
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	7,287,726,000		6,560,245,000	6,941,272,000
Total Finance Receivables	7,287,726,000		6,560,245,000	6,941,272,000
Wholesale [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	7,328,000		5,339,000	7,456,000
Total allowance for credit losses	7,328,000	9,043,000	5,339,000	7,456,000	7,753,000	4,630,000
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	1,325,041,000		952,321,000	1,338,085,000
Total Finance Receivables	1,325,041,000		952,321,000	1,338,085,000
Retail [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	131,903,000		122,025,000	114,899,000
Total allowance for credit losses	131,903,000	$ 123,777,000	122,025,000	114,899,000	$ 106,776,000	$ 106,063,000
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	5,962,685,000		5,607,924,000	5,603,187,000
Total Finance Receivables	5,962,685,000		5,607,924,000	5,603,187,000
Nonperforming Financing Receivable [Member] | Wholesale [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 0		$ 0	$ 0