CONSOLIDATED STATEMENT OF CASH FLOWS (Parenthetical) (USD $) In Millions, unless otherwise specified	Dec. 31, 2010
Statement of Cash Flows [Abstract]
Cash in disposal group	$ 117

Amount of currency on hand, demand deposits with banks or financial institutions, and other kinds of accounts that have the general characteristics of demand deposits, held by a disposal group.

No definition available.

Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationCash
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant