Finance Receivables (Recorded Investment Of Retail and Wholesale Finance Receivables By Credit Quality Indicator) (Detail) - USD ($) $ in Thousands	Jun. 26, 2016	Dec. 31, 2015	Jun. 28, 2015
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	$ 7,443,398	$ 7,015,331	$ 7,287,726
Retail
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	6,020,750	5,991,471	5,962,685
Retail | Prime
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	4,756,479	4,777,448	4,718,363
Retail | Sub-prime
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	1,264,271	1,214,023	1,244,322
Wholesale
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	1,422,648	1,023,860	1,325,041
Wholesale | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	0	5,169	0
Wholesale | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	19,637	21,774	7,739
Wholesale | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	4,334	6,271	15,343
Wholesale | Medium Risk
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	6,350	11,494	3,245
Wholesale | Low Risk
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, gross	$ 1,392,327	$ 979,152	$ 1,298,714