v2.4.0.8

Derivative Instruments (Textuals) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
(Gain) Loss On Interest Rate Derivative Instruments Not Designated As Hedging Instruments, Unrealized				$ 14
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		0		2
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	7	3	4	7
Derivative Instruments (Textuals) [Abstract]
Maximum length of time hedging using interest rate derivative instruments			10 years
Derivative, Net Liability Position, Aggregate Fair Value	10		10
Collateral Already Posted, Aggregate Fair Value	1		1
Additional Collateral, Aggregate Fair Value	0		0
Cumulative cash flow hedge losses remaining in AOCI			173		242
Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net	7		7,000,000
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			43
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	0	0	0	(14)
Interest Rate Derivative Liabilities, Fair Value on Settlement Date [Line Items]
(Gain) Loss on Interest Rate Derivative Instruments Not Designated as Hedging Instruments, realized				142
Interest Rate Swap [Member]
Derivative Instruments (Textuals) [Abstract]
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments				$ 156

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- Definition

Cumulative cash flow hedge losses remaining in AOCI

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- Definition

Gain Loss On Interest Rate Derivative Instruments Not Designated As Hedging Instruments, Unrealized

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- Definition

The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4H

-Subparagraph (e)

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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.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 30

-Section 50

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The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

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The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

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The amount of net gain (loss) reclassified into earnings in the period when cash flow hedge is discontinued because it is probable that the original forecasted transactions will not occur by the end of the original period or an additional two month time period.

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Amount of gain (loss) included in earnings for the period from the increase (decrease) in fair value of interest rate derivatives not designated as hedging instruments.

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- Definition

Maximum period the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of tax expense (benefit), after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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