Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Changes in Unrecognized Tax Benefit [Table Text Block]

(Dollars in millions)	2014			2013
Balance at January 1		$291			$137
Increases in UTBs related to prior years	1			4
Decreases in UTBs related to prior years	(36		)	(10		)
Increases in UTBs related to the current year	87			171
Decreases in UTBs related to settlements	(130		)	(2		)
Decreases in UTBs related to lapse of the applicable statutes of limitations	(3		)	(9		)
Balance at December 31		$210			$291

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

(Dollars in millions)	2014		2013			2012
Current income tax expense/(benefit):
Federal		$365		($158	)		$592
State	29		(15		)	26
Total	394		(173		)	618
Deferred income tax expense/(benefit):
Federal	99		444			229
State	—		51			(35		)
Total	99		495			194
Total income tax expense		$493		$322			$812

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2014					2013					2012
(Dollars in millions)	Amount			Percent of Pre-Tax Income		Amount			Percent of Pre-Tax Income		Amount			Percent of Pre-Tax Income
Income tax expense at federal statutory rate		$793		35.0	%		$583		35.0	%		$970		35.0	%
Increase (decrease) resulting from:
State income taxes, net	12			0.5		21			1.2		(9		)	(0.3	)
Tax-exempt interest	(89		)	(3.9	)	(80		)	(4.8	)	(77		)	(2.8	)
Internal restructuring	—			—		(343		)	(20.6	)	—			—
Changes in UTBs (including interest), net	(82		)	(3.6	)	152			9.1		1			—
Income tax credits, net of amortization 1	(65		)	(2.9	)	(53		)	(3.2	)	(58		)	(2.1	)
Non-deductible expenses	(57		)	(2.5	)	49			3.0		16			0.6
Other	(19		)	(0.8	)	(7		)	(0.4	)	(31		)	(1.1	)
Total income tax expense and rate		$493		21.8	%		$322		19.3	%		$812		29.3	%

¹ Excludes tax credits of $21 million for the year ended December 31, 2014, which were recognized as a reduction to the related investment asset.

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

(Dollars in millions)	2014			2013
DTAs:
ALLL		$710			$795
Accrued expenses	358			463
State NOLs and other carryforwards	201			208
Net unrealized losses in AOCI	56			153
Other	127			131
Total gross DTAs	1,452			1,750
Valuation allowance	(98		)	(102		)
Total DTAs	1,354			1,648
DTLs:
Leasing	762			804
Compensation and employee benefits	113			97
MSRs	515			566
Loans	93			98
Goodwill and intangible assets	190			151
Fixed assets	140			153
Other	61			53
Total DTLs	1,874			1,922
Net DTL		($520	)		($274	)