Operating Leases, Commitments and Contingencies, and Guarantees (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Leases, Commitments and Contingencies, and Guarantees [Abstract]
Operating leases, rent expense	$ 46	$ 52	$ 50
Operating leases, sublease revenue	3	2	2
Maximum potential future lease payments and other related costs under guarantee on a real estate joint venture	84
Aggregate amount of quantifiable indemnification agreements in effect for sales of business entities, assets and third party loans	702
Recorded liabilities related to indemnification agreements	$ 7