Finance Receivables (Aging Of Past Due Finance Receivables Including Non Accrual Status Finance Receivables) (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014	Sep. 28, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 7,053,601	$ 6,379,379	$ 6,639,935
31-60 Days Past Due	111,499	113,390	99,985
61-90 Days Past Due	34,673	38,558	31,083
Greater than 90 Days Past Due	23,956	28,918	20,500
Total Past Due	170,128	180,866	151,568
Total Finance Receivables	7,223,729	6,560,245	6,791,503
Retail [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	6,024,620	5,427,719	5,607,089
31-60 Days Past Due	111,393	113,007	99,489
61-90 Days Past Due	34,511	38,486	31,006
Greater than 90 Days Past Due	23,808	28,712	20,343
Total Past Due	169,712	180,205	150,838
Total Finance Receivables	6,194,332	5,607,924	5,757,927
Wholesale [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,028,981	951,660	1,032,846
31-60 Days Past Due	106	383	496
61-90 Days Past Due	162	72	77
Greater than 90 Days Past Due	148	206	157
Total Past Due	416	661	730
Total Finance Receivables	$ 1,029,397	$ 952,321	$ 1,033,576