Finance Receivables (Recorded Investment Of Retail and Wholesale Finance Receivables By Credit Quality Indicator) (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2014	Dec. 31, 2013	Mar. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	$ 6,552,224	$ 6,110,256	$ 6,140,731
Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	5,254,133	5,265,044	4,981,488
Retail [Member] | Prime [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	4,128,996	4,141,559	3,942,294
Retail [Member] | Sub-Prime [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	1,125,137	1,123,485	1,039,194
Wholesale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	1,298,091	845,212	1,159,243
Wholesale [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	5,508	0	4,843
Wholesale [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	3,888	8,383	10,441
Wholesale [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	10,950	2,076	11,125
Wholesale [Member] | Risk Level, Medium [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	11,103	5,205	7,804
Wholesale [Member] | Risk Level, Low [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	$ 1,266,642	$ 829,548	$ 1,125,030