Carrying Values and Fair Values of Non-Current Financial Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 30, 2011		Dec. 31, 2010
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	$ 298	[1]	$ 1,264	[1]
Restricted cash	16		30
Non-recourse debt associated with securitized notes receivable	(1,816)		(2,691)
Other long-term liabilities	(883)	[1]	(893)	[1]
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash	16		30
Marketable securities	50		18
Senior Notes	(1,286)		(1,631)
Commercial paper	(331)		0
Other long-term debt	(137)		(142)
Other long-term liabilities	(77)		(71)
Long-term derivative liabilities	0		(1)
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash	16		30
Marketable securities	50		18
Senior Notes	(1,412)		(1,771)
Commercial paper	(331)		0
Other long-term debt	(137)		(138)
Other long-term liabilities	(77)		(67)
Long-term derivative liabilities	0		(1)
Loans to timeshare owners
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	0		1,080
Securitized Notes Receivable | Loans to timeshare owners | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	0		910
Securitized Notes Receivable | Loans to timeshare owners | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	0		1,097
Nonsecuritized Notes Receivable | Loans to timeshare owners | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	0		170
Nonsecuritized Notes Receivable | Loans to timeshare owners | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	0		176
Nonsecuritized Notes Receivable | Senior, Mezzanine and Other Loans | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	298		184
Nonsecuritized Notes Receivable | Senior, Mezzanine and Other Loans | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	252		130
Non Recourse Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-recourse debt associated with securitized notes receivable	0		(890)
Non Recourse Debt | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-recourse debt associated with securitized notes receivable	0		(890)
Non Recourse Debt | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-recourse debt associated with securitized notes receivable	0		(921)
Noncurrent Assets | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost method investments	31		60
Total long-term financial assets	395		1,372
Noncurrent Assets | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost method investments	25		63
Total long-term financial assets	343		1,514
Noncurrent Liabilities | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long-term financial liabilities	(1,831)		(2,735)
Noncurrent Liabilities | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long-term financial liabilities	$ (1,957)		$ (2,898)

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