Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill by Reportable Segment



(Dollars in millions)	Retail & Commercial			Retail Banking		Diversified Commercial Banking		CIB			W&IM		Total
Balance, January 1, 2011		$—			$4,854		$928		$180			$361		$6,323
Contingent consideration	—			—		—		—			1		1
Acquisition of certain additional assets of CSI Capital Management	—			—		—		—			20		20
Balance, December 31, 2011		$—			$4,854		$928		$180			$382		$6,344

Balance, January 1, 2010		$5,739			$—		$—		$223			$357		$6,319
Intersegment transfers	(5,739		)	4,854		928		(43		)	—		—
Contingent consideration	—			—		—		—			4		4
Balance, December 31, 2010		$—			$4,854		$928		$180			$361		$6,323

Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block]



(Dollars in millions)	Core Deposit Intangibles			MSRs - LOCOM			MSRs - Fair Value			Other			Total
Balance, January 1, 2011		$67			$—			$1,439			$65			$1,571
Amortization	(29		)	—			—			(14		)	(43		)
MSRs originated	—			—			224			—			224
Changes in fair value:
Due to changes in inputs and assumptions ¹	—			—			(533		)	—			(533		)
Other changes in fair value ²	—			—			(200		)	—			(200		)
Sale of MSRs	—			—			(9		)	—			(9		)
Other	—			—			—			7			7
Balance, December 31, 2011		$38			$—			$921			$58			$1,017

Balance, January 1, 2010		$104			$604			$936			$67			$1,711
Designated at fair value (transfers from amortized cost)	—			(604		)	604			—			—
Amortization	(37		)	—			—			(13		)	(50		)
MSRs originated	—			—			289			—			289
Changes in fair value:
Due to fair value election	—			—			145			—			145
Due to changes in inputs and assumptions ¹	—			—			(275		)	—			(275		)
Other changes in fair value ²	—			—			(238		)	—			(238		)
Sale of MSRs	—			—			(22		)	—			(22		)
Other	—			—			—			11			11
Balance, December 31, 2010		$67			$—			$1,439			$65			$1,571

¹ Primarily reflects changes in discount rates and prepayment speed assumptions, due to changes in interest rates.

² Represents changes due to the collection of expected cash flows, net of accretion, due to the passage of time.

Expected Amortization Expense [Table Text Block]



(Dollars in millions)	Core Deposit Intangibles		Other		Total
2012		$21		$13		$34
2013	13		11		24
2014	4		9		13
2015	—		8		8
2016	—		5		5
Thereafter	—		12		12
Total		$38		$58		$96

Key Characteristics, Inputs, and Economic Assumptions Used to Estimate the Fair Value of the Company's MSRs



(Dollars in millions)	2011			2010
Fair value of retained MSRs		$921			$1,439
Prepayment rate assumption (annual)	20		%	12		%
Decline in fair value from 10% adverse change		$52			$50
Decline in fair value from 20% adverse change	98			95
Discount rate (annual)	11		%	12		%
Decline in fair value from 10% adverse change		$33			$68
Decline in fair value from 20% adverse change	63			130
Weighted-average life (in years)	4.3			6.2
Weighted-average coupon	5.2		%	5.4		%

- Definition

Tabular disclosure of all information related to the key inputs and assumptions (including, at a minimum, but not limited to, and if applicable, quantitative information about discount rates, expected prepayments including the expected weighted-average life of prepayable financial assets, and anticipated credit losses) used in measuring the fair value of assets or liabilities that relate to the transferor's continuing involvement with transferred financial assets, as of the balance sheet date.

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- Definition

Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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- Definition

Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.

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