Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2012

Allowance for Credit Losses [Abstract]

Activity in the Allowance for Credit Losses

(Dollars in millions)	2012			2011			2010
Balance at beginning of period		$2,505			$3,032			$3,235
Provision for loan losses	1,398			1,523			2,708
Allowance recorded upon VIE consolidation	—			—			1
Benefit for unfunded commitments	(3		)	(10		)	(57		)
Loan charge-offs	(1,907		)	(2,241		)	(3,018		)
Loan recoveries	226			201			163
Balance at end of period		$2,219			$2,505			$3,032
Components:
ALLL		$2,174			$2,457			$2,974
Unfunded commitments reserve1	45			48			58
Allowance for credit losses		$2,219			$2,505			$3,032

¹ The unfunded commitments reserve is recorded in other liabilities in the Consolidated Balance Sheets.

Activity in the ALLL by Segment

	2012
(Dollars in millions)	Commercial			Residential			Consumer			Total
Balance at beginning of period		$964			$1,354			$139			$2,457
Provision for loan losses	241			1,062			95			1,398
Loan charge-offs	(457		)	(1,316		)	(134		)	(1,907		)
Loan recoveries	154			31			41			226
Balance at end of period		$902			$1,131			$141			$2,174
	2011
(Dollars in millions)	Commercial			Residential			Consumer			Total
Balance at beginning of period		$1,303			$1,498			$173			$2,974
Provision for loan losses	324			1,113			86			1,523
Loan charge-offs	(803		)	(1,275		)	(163		)	(2,241		)
Loan recoveries	140			18			43			201
Balance at end of period		$964			$1,354			$139			$2,457

Loans Held for Investment portfolio and Related Allowance for Loan and Lease Losses

	2012
	Commercial				Residential				Consumer				Total
(Dollars in millions)	Carrying Value		Associated ALLL		Carrying Value		Associated ALLL		Carrying Value		Associated ALLL		Carrying Value		Associated ALLL
Individually evaluated		$138		$7		$2,859		$348		$81		$9		$3,078		$364
Collectively evaluated	58,750		895		39,961		783		19,302		132		118,013		1,810
Total evaluated	58,888		902		42,820		1,131		19,383		141		121,091		2,174
LHFI at fair value	—		—		379		—		—		—		379		—
Total LHFI		$58,888		$902		$43,199		$1,131		$19,383		$141		$121,470		$2,174
	2011
	Commercial				Residential				Consumer				Total
(Dollars in millions)	Carrying Value		Associated ALLL		Carrying Value		Associated ALLL		Carrying Value		Associated ALLL		Carrying Value		Associated ALLL
Individually evaluated		$412		$34		$3,141		$405		$39		$9		$3,592		$448
Collectively evaluated	55,458		930		43,088		949		19,924		130		118,470		2,009
Total evaluated	55,870		964		46,229		1,354		19,963		139		122,062		2,457
LHFI at fair value	2		—		431		—		—		—		433		—
Total LHFI		$55,872		$964		$46,660		$1,354		$19,963		$139		$122,495		$2,457