Notes Receivable Reserves (Detail) (USD $) In Millions, unless otherwise specified	Dec. 30, 2011	Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items]
Notes Receivable Reserves Balance	$ 78	$ 292
Nonsecuritized Notes Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
Notes Receivable Reserves Balance	78	203
Securitized Notes Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
Notes Receivable Reserves Balance	$ 0	$ 89

A valuation allowance for financing receivables that are expected to be uncollectible.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524

-Subparagraph (c)(1)

Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant