The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References+ Details

Fair value of the servicing asset that has been amortized as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6859876&loc=d3e66267-113978

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6863725&loc=SL6227155-111746

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 17
-Subparagraph g(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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS140-4/FIN46(R)-8
-Paragraph B10
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 68
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6863725&loc=d3e122739-111746

+ Details

- Definition

Reflects the estimated amount of impairment as of the balance sheet date of recognized servicing assets that are being amortized in proportion to and over the period of estimated net servicing income or loss.

+ References+ Details

Mortgage Banking Activities Textuals (Details) (USD $)	3 Months Ended		6 Months Ended
Mortgage Banking Activities Textuals (Details) (USD $)	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Mar. 31, 2011	Dec. 31, 2010	Mar. 31, 2010	Dec. 31, 2009
Mortgage Banking Activities (Textual) [Abstract]
Amortization	$ (63,000,000)	$ (56,000,000)	$ (127,000,000)	$ (113,000,000)
Amortized [Member]
Mortgage Banking Activities (Textual) [Abstract]
Amortization	(63,000,000)	(56,000,000)	(127,000,000)	(113,000,000)
Valuation allowance	10,000,000	0	10,000,000	0	(9,000,000)	(3,000,000)	0	0
End of period	1,805,000,000	1,307,000,000	1,805,000,000	1,307,000,000	1,898,000,000	1,812,000,000	1,283,000,000	1,261,000,000
Amortized [Member] \| Residential Mortgage Servicing [Member]
Mortgage Banking Activities (Textual) [Abstract]
Amortization	(11,000,000)
Commercial Mortgage Servicing [Member]
Mortgage Banking Activities (Textual) [Abstract]
End of period	1,395,000,000		1,395,000,000
Residential Mortgage Servicing [Member]
Mortgage Banking Activities (Textual) [Abstract]
Balance, end of period	379,000,000		379,000,000
Amortization			(21,000,000)
Valuation allowance	10,000,000		10,000,000
End of period	410,000,000		410,000,000
Liability for mortgage loans repurchase losses [Member]
Mortgage Banking Activities (Textual) [Abstract]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$ 1,800,000,000		$ 1,800,000,000