General, Description of Business, and Basis of Presentation General, Description of Business, and Basis of Presentation (Detail1) (USD $) In Millions, unless otherwise specified		12 Months Ended
Dec. 31, 2011	Dec. 31, 2013 Capital in excess of par value [Member]	Dec. 31, 2013 Noncontrolling Interests [Member]	Dec. 31, 2013 Deferred Income Taxes [Member]
Former business, ownership percentage	100.00%
Noncontrolling Interest, Increase from Subsidiary Equity Issuance		$ 408	$ 1,169	$ 242

Amount of increase in noncontrolling interest from subsidiary issuance of equity interests to noncontrolling interest holders.

No definition available.

Name:	us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration