Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets Issuances.

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- Definition

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets Principal Payments.

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- Definition

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets Sales.

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- Definition

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets Settlements.

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- Definition

Net Change in Unrealized Gains (Losses) Relating to Assets.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph c(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in other comprehensive income (a separate component of shareholders' equity).

+ References

+ Details

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- Definition

Purchases that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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- Definition

This element represents purchases, sales, issuances, and settlements (net) which have taken place during the period in relation to assets measured at fair value on a recurring basis using unobservable inputs (Level 3).

+ References

+ Details

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- Definition

This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph c
-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 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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Fair Values of Assets and Liabilities (Details 2) (USD $) In Millions	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended								3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2011 Non agency Prime [Member] Residential [Member]	Jun. 30, 2010 Non agency Prime [Member] Residential [Member]	Jun. 30, 2011 Non agency Prime [Member] Residential [Member]	Jun. 30, 2010 Non agency Prime [Member] Residential [Member]	Jun. 30, 2011 Non agency Non Prime [Member] Residential [Member]	Jun. 30, 2010 Non agency Non Prime [Member] Residential [Member]	Jun. 30, 2011 Non agency Non Prime [Member] Residential [Member]	Jun. 30, 2010 Non agency Non Prime [Member] Residential [Member]	Jun. 30, 2011 Commercial Mortgage Backed Non-Agency Securities [Member]	Jun. 30, 2010 Commercial Mortgage Backed Non-Agency Securities [Member]	Jun. 30, 2011 Commercial Mortgage Backed Non-Agency Securities [Member]	Jun. 30, 2010 Commercial Mortgage Backed Non-Agency Securities [Member]	Jun. 30, 2011 Collateralized Loan Obligations [Member]	Jun. 30, 2010 Collateralized Loan Obligations [Member]	Jun. 30, 2011 Collateralized Loan Obligations [Member]	Jun. 30, 2010 Collateralized Loan Obligations [Member]	Jun. 30, 2011 Others [Member]	Jun. 30, 2010 Others [Member]	Jun. 30, 2011 Others [Member]	Jun. 30, 2010 Others [Member]	Jun. 30, 2011 Corporate Debt Securities [Member]	Mar. 31, 2011 Corporate Debt Securities [Member]	Dec. 31, 2010 Corporate Debt Securities [Member]	Jun. 30, 2010 Corporate Debt Securities [Member]	Mar. 31, 2010 Corporate Debt Securities [Member]	Dec. 31, 2009 Corporate Debt Securities [Member]	Jun. 30, 2010 Other Investments [Member]	Jun. 30, 2010 Other Investments [Member]	Jun. 30, 2011 Net derivative assets and liabilities [Member]	Jun. 30, 2010 Net derivative assets and liabilities [Member]	Jun. 30, 2011 Net derivative assets and liabilities [Member]	Jun. 30, 2010 Net derivative assets and liabilities [Member]	Jun. 30, 2011 Mortgage servicing rights [Member]	Jun. 30, 2010 Mortgage servicing rights [Member]	Jun. 30, 2011 Mortgage servicing rights [Member]	Jun. 30, 2010 Mortgage servicing rights [Member]	Jun. 30, 2011 Available for sale Securities [Member]	Jun. 30, 2010 Available for sale Securities [Member]	Jun. 30, 2011 Available for sale Securities [Member]	Jun. 30, 2010 Available for sale Securities [Member]
Changes in fair value for all assets and liabilities measured at fair value
Beginning of period balance	$ 963	$ 1,304	$ 1,103	$ 1,429	$ 947	$ 900	$ 947	$ 968	$ 50	$ 14	$ 50	$ 13	$ 142	$ 79	$ 135	$ 98	$ 133	$ 335	$ 133	$ 357	$ 9	$ 9	$ 9	$ 10	$ 10	$ 10	$ 237	$ 231	$ 747	$ 905	$ 851	$ 815	$ 2,073	$ 1,778	$ 1,837	$ 1,749	$ 2,244	$ 2,879	$ 2,377	$ 3,106
Net Gains (Losses) Included in Net Income	1		3		(2)	(6)	(2)	(37)	1		1		3	(2)	7		3	(3)	7	(5)							4	2	373	687	416	1,059	(190)	(385)	(174)	(493)	6	(7)	16	(40)
Net Gains (Losses) Included in Other Comprehensive Income (Loss)	(22)	21	24	50	(19)	52	32	68	(1)	1	0	2	(1)	(2)	8	(2)	(1)	4	2	(2)							34	47									(44)	110	66	163
Net Total Purchases, Sales, Principal Payments, Issuances and Settlements	(46)	(128)	(234)	(282)	(31)	(39)	(82)	(92)	0		(1)		(11)		(17)	(21)	(6)	(8)	(13)	(22)							(9)	(14)	(284)	(298)	(431)	(580)	106	150	326	287	(94)	(184)	(347)	(431)
End of Period Balance	896	1,197	896	1,197	895	907	895	907	50	15	50	15	133	75	133	75	129	328	129	328	9	9	9	10	10	10	266	266	836	1,294	836	1,294	1,989	1,543	1,989	1,543	2,112	2,798	2,112	2,798
Net Change in Unrealized Gains (Losses) Relating to Assets Still Held at End of Period	(22)	19	16	44	(19)	52	31	68	0	1		1		(1)	9		(1)	5	2	(1)							34	47	(30)	68	(169)	41	(190)	(385)	(174)	(493)	(42)	110	58	159
Additional detail of purchases, sales,principal payments,issuances and settlements
Purchases																																	4		11
Sales			(115)				(12)																						(2)		(3)								(127)
Principal Payments	(46)		(119)		(31)		(70)		0		(1)		(11)		(17)		(6)		(13)																		(94)		(220)
Issuances																																	102		315
Settlements																													(282)		(428)
Net Total	$ (46)	$ (128)	$ (234)	$ (282)	$ (31)	$ (39)	$ (82)	$ (92)	$ 0		$ (1)		$ (11)		$ (17)	$ (21)	$ (6)	$ (8)	$ (13)	$ (22)							$ (9)	$ (14)	$ (284)	$ (298)	$ (431)	$ (580)	$ 106	$ 150	$ 326	$ 287	$ (94)	$ (184)	$ (347)	$ (431)