Finance Receivables (Narrative) (Detail) (USD $)	6 Months Ended
	Jul. 01, 2012	Jun. 26, 2011	Apr. 01, 2012	Dec. 31, 2011	Mar. 27, 2011	Dec. 31, 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restricted finance receivables held as collateral	$ 2,050,000,000	$ 2,510,000,000		$ 2,860,000,000
Allowance for credit losses	114,248,000	144,404,000	122,503,000	125,449,000	159,684,000	173,589,000
Retail financing receivables, gross	5,225,779,000	5,374,055,000		5,087,490,000
Non-accrual status wholesale finance receivables		4,700,000
FICO score for determining credit risk	640
Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	106,180,000	130,948,000	112,857,000	116,112,000	141,704,000	157,791,000
Retail financing receivables, gross	5,225,779,000	5,374,055,000		5,087,490,000
Retail [Member] | Greater Than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail financing receivables, gross	14,827,000	18,732,000		27,469,000
Related To Finance Receivables Held By Vies [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	41,900,000	62,100,000
Wholesale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	8,068,000	13,456,000	9,646,000	9,337,000	17,980,000	15,798,000
Wholesale finance receivables, gross	$ 600,000	$ 1,200,000		$ 900,000