Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ 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 (c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959

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The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
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-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959

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Derivative Financial Instruments - Effect on the Consolidated Statements of Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Not designated as hedges, Pre-tax Gain (Loss) Recognized in Income			$ 232	$ 56
Not Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Not designated as hedges, Pre-tax Gain (Loss) Recognized in Income	$ 34	$ 83	257	86
Cash flow hedges \| Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedges, Pre-tax Gain (Loss) Recognized in AOCI	38	(168)	(245)	(180)
Cash flow hedges \| Interest rate contracts \| Total interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedges, Pre-tax Gain (Loss) Reclassified from AOCI into Income	3	(21)	(18)	(63)
Fair value hedges \| Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Fair value hedges, Pre-tax Gain (Loss) Recognized in Income	53	64	164	190
Fair value hedges \| Interest rate contracts \| Total interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Fair value hedges, Pre-tax Gain (Loss) Recognized in Income	58	69	177	205
Fair value hedges \| Interest rate contracts \| Total interest income
Derivative Instruments, Gain (Loss) [Line Items]
Fair value hedges, Pre-tax Gain (Loss) Recognized in Income	(5)	(5)	(13)	(15)
Client-related and other risk management \| Interest rate contracts \| Other noninterest income \| Not Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Not designated as hedges, Pre-tax Gain (Loss) Recognized in Income	15	3	23	15
Client-related and other risk management \| Foreign exchange contracts \| Other noninterest income \| Not Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Not designated as hedges, Pre-tax Gain (Loss) Recognized in Income	(1)	7	4	16
Mortgage banking \| Interest rate contracts \| Mortgage banking income \| Not Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Not designated as hedges, Pre-tax Gain (Loss) Recognized in Income	17	(21)	(2)	(1)
MSRs \| Interest rate contracts \| Mortgage banking income \| Not Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Not designated as hedges, Pre-tax Gain (Loss) Recognized in Income	$ 3	$ 94	$ 232	$ 56