Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

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.

+ References

Reference 1: 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=35736893&loc=d3e80748-113994

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- Definition

Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 25

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

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- Definition

Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of gain (loss)recognized in the income statement from the hedging ineffectiveness of a fair value hedge.

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- Definition

Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959

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Derivative Instruments and Other Financial Instruments Used For Hedging (Details 2) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2016	Dec. 31, 2014
Cash flow hedges
Derivative Notional Amount	$ 95,923		$ 95,923			$ 71,679
Cash Flow Hedges
Cash flow hedges
Weighted average remaining life of the currently active cash flow hedges			3 years 5 months 1 day
Interest Rate Contract [Member] \| Fair value hedges
Cash flow hedges
Gain (Loss) on Fair Value Hedges Recognized in Earnings	6	$ (5)	$ 9	$ (2)
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	(6)	6	(9)	3
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0	1	0	1
Designated as Hedging Instrument \| Interest Rate Contract [Member] \| Fair value hedges
Cash flow hedges
Gain (Loss) on Fair Value Hedges Recognized in Earnings	6	(5)	9	(2)
Derivative Notional Amount	500		500			500
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	(6)	6	(9)	3
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0	$ 1	0	$ 1
Designated as Hedging Instrument \| Interest Rate Contract [Member] \| Cash Flow Hedges
Cash flow hedges
Derivative Notional Amount	13,400		13,400			$ 9,750
Libor Indexed Loans [Member] \| Designated as Hedging Instrument \| Interest Rate Swap [Member] \| Cash Flow Hedges
Cash flow hedges
Derivative Notional Amount	$ 13,400		$ 13,400
Scenario, Forecast [Member]
Cash flow hedges
Income from accumulated other comprehensive income expected to be reclassified to net interest income					$ 154