The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6887037&loc=d3e80748-113994

Name:	us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Derivatives and Hedging Activities (Details Textuals) (USD $) Share data in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011 Fair Value Hedging [Member]	Dec. 31, 2010 Fair Value Hedging [Member]	Sep. 30, 2011 Cash flow hedges [Member]	Dec. 31, 2010 Cash flow hedges [Member]
Derivatives and Hedging Activities (Textuals) [Abstract]
Net reduction in interest expense on long term debt and other	$ 127,000,000	$ 129,000,000	$ 377,000,000	$ 391,000,000
Net pretax losses on derivatives reclassified from AOCI into earnings			1,000,000
Shares held in equity investment	638.1		638.1
Derivative [Line Items]
Notional amount of long-term debt					$ 17,900,000,000	$ 15,900,000,000	$ 298,000,000,000	$ 1,300,000,000