Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Line Items]
Inventories	$ 217	$ 361
Average estimated default rate	9.30%	9.70%
Estimated projected default value	4
Projected default rate on impact to loan loss reserve	0.10%
Maximum outstanding period for note receivable being delinquent	30 days
Loan repossession period	120 days
Minimum percentage in joint venture to account as equity method investment	20.00%
Maximum percentage in joint venture to account as equity method investment	50.00%
Minimum percentage of interest to consolidate joint venture	50.00%
Plant, property and equipment including capitalized interest	7	7	5
Total actuarial liability	1,904	1,956
Accrued expenses	1,092	1,074
Gains and losses from foreign exchange rate changes related to intercompany receivables and payables reported in costs and expenses	14	5	12
Advertising expense and other promotional activities	154	154	149
SPG [Member]
Accounting Policies [Line Items]
Total actuarial liability	1,036	922
Accrued expenses	313	275
Inventories [Member]
Accounting Policies [Line Items]
Capitalized interest			37
Minimum [Member] | Buildings and improvements [Member]
Accounting Policies [Line Items]
Estimated useful economic lives of assets	15 years
Minimum [Member] | Furniture, fixtures and equipment [Member]
Accounting Policies [Line Items]
Estimated useful economic lives of assets	3 years
Minimum [Member] | Information technology software and equipment [Member]
Accounting Policies [Line Items]
Estimated useful economic lives of assets	3 years
Maximum [Member] | Buildings and improvements [Member]
Accounting Policies [Line Items]
Estimated useful economic lives of assets	40 years
Maximum [Member] | Furniture, fixtures and equipment [Member]
Accounting Policies [Line Items]
Estimated useful economic lives of assets	10 years
Maximum [Member] | Information technology software and equipment [Member]
Accounting Policies [Line Items]
Estimated useful economic lives of assets	20 years
VOI [Member]
Accounting Policies [Line Items]
Inventories	182	220
Loan delinquency period	When it is more than 30 days outstanding
Loan repossession period	We do not resume interest accrual until payment is made. We consider loans to be in default upon reaching 120 days outstanding
Capitalized selling and marketing cost included in prepaid expenses and other assets	5	4
Residential inventory [Member]
Accounting Policies [Line Items]
Inventories	$ 7	$ 112