Goodwill and Other Intangible Assets - Identifiable Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
Gross Carrying Amount	$ 35,676
Accumulated Amortization	4,351
INTANGIBLE ASSETS WITH DETERMINABLE LIVES
Gross Carrying Amount	8,836
Accumulated Amortization	4,351
INTANGIBLE ASSETS WITH INDEFINITE LIVES
Gross Carrying Amount	$ 26,840

The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(1)

Name:	us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant