Finance Receivables (Recorded Investment Of Retail and Wholesale Finance Receivables By Credit Quality Indicator) (Detail) - USD ($) $ in Thousands	Jun. 28, 2015	Dec. 31, 2014	Jun. 29, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	$ 7,287,726	$ 6,560,245	$ 6,941,272
Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	5,962,685	5,607,924	5,603,187
Retail [Member] | Prime [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	4,718,363	4,435,352	4,407,364
Retail [Member] | Sub-Prime [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	1,244,322	1,172,572	1,195,823
Wholesale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	1,325,041	952,321	1,338,085
Wholesale [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	0	954	4,916
Wholesale [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	7,739	7,025	4,192
Wholesale [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	15,343	0	0
Wholesale [Member] | Risk Level, Medium [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	3,245	11,557	16,202
Wholesale [Member] | Risk Level, Low [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	$ 1,298,714	$ 932,785	$ 1,312,775