Finance Receivables (Allowance For Credit Losses And Finance Receivables By Portfolio Individually And Collectively Evaluated For Impairment) (Detail) (USD $)	Mar. 30, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 0	$ 0	$ 0
Collectively evaluated for impairment	114,529,000	110,693,000	106,792,000
Total allowance for credit losses	114,529,000	110,693,000	106,792,000	107,667,000
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	6,552,224,000	6,110,256,000	6,140,731,000
Total Finance Receivables	6,552,224,000	6,110,256,000	6,140,731,000
Wholesale [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	7,753,000	4,630,000	8,250,000
Total allowance for credit losses	7,753,000	4,630,000	8,250,000	6,225,000
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	1,298,091,000	845,212,000	1,159,243,000
Total Finance Receivables	1,298,091,000	845,212,000	1,159,243,000
Retail [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	106,776,000	106,063,000	98,542,000
Total allowance for credit losses	106,776,000	106,063,000	98,542,000	101,442,000
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	5,254,133,000	5,265,044,000	4,981,488,000
Total Finance Receivables	$ 5,254,133,000	$ 5,265,044,000	$ 4,981,488,000