Composition of our Notes Receivable Balances (Net of Reserves) (Detail) (USD $) In Millions, unless otherwise specified	Dec. 30, 2011		Dec. 31, 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes receivable	$ 382		$ 1,444
Notes receivable	298	[1]	1,264	[1]
Loans to timeshare owners
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	0		1,080
Loans to timeshare owners | Securitized Notes Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes receivable	0		1,028
Current notes receivable	0		(118)
Loans to timeshare owners | Nonsecuritized Notes Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes receivable	0		225
Current notes receivable	0		(55)
Senior, Mezzanine and Other Loans | Nonsecuritized Notes Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes receivable	382		191
Current notes receivable	$ (84)		$ (7)

[1] See Footnote No. 22, "Related Party Transactions," of the Notes to Consolidated Financial Statements for disclosure of related party amounts.