Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2014

Employee Benefit Plans [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Dividend yield	1.28	%
Expected stock price volatility	30.98
Risk-free interest rate (weighted average)	1.02
Expected life of options	6 years

Stock-Based Compensation Expense Recognized in Noninterest Expense

(Dollars in millions)	2014		2013
Stock-based compensation expense:
Stock options		$1		$3
Restricted stock	8		7
RSUs	14		9
Total stock-based compensation expense		$23		$19

Schedule of Net Benefit Costs [Table Text Block]

	Pension Benefits						Other Postretirement Benefits
(Dollars in millions)	2014			2013			2014			2013
Interest cost		$31			$28			$1			$1
Expected return on plan assets	(49		)	(46		)	(2		)	(1		)
Recognized net actuarial loss/(gain)	4			6			(1		)	—
Net periodic benefit		($14	)		($12	)		($2	)		$—