Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

Shareholders' Equity

Summary of Preferred Stock

		Earliest
	Issuance	Redemption	Liquidation		Carrying		Dividend
Issue	Date	Date	Amount		Amount		Rate
			(Dollars in millions)
Series D	5/1/12	5/1/17	$	575	$	559	5.850	%
Series E	7/31/12	8/1/17		1,150		1,120	5.625
Series F	10/31/12	11/1/17		450		437	5.200
Series G	5/1/13	6/1/18		500		487	5.200
			$	2,675	$	2,603

Summary of Selected Information Pertaining to Equity-based Compensation Plans

Equity-Based Compensation Plans	December 31, 2013
Shares available for future grants (in thousands)	30,562
Vesting period, awards granted prior to 2010	5.0	yrs
Vesting period, awards granted after 2009	3.0 to 5.0
Option term	10.0

Schedule of Assumptions Used to Calculate Fair Value of Options Granted

		December 31,
		2013			2012			2011
Assumptions:
	Risk-free interest rate		1.3	%		1.5	%		1.7	%
	Dividend yield		3.6			4.4			3.5
	Volatility factor		28.0			33.0			37.2
	Expected life		7.0	yrs		7.0	yrs		7.4	yrs
Fair value of options per share		$	5.48		$	6.07		$	7.45

Summary Of Selected Data Related To Equity Based Compensation Costs [Text Block]

	Years Ended December 31,
	2013		2012		2011
	(Dollars in millions)
Equity-based compensation expense	$	96	$	97	$	98
Income tax benefit from equity-based compensation expense		36		36		36
Intrinsic value of options exercised and RSUs that vested during the year		102		62		54
Grant date fair value of equity-based awards that vested during the year		80		88		76
			December 31,
			2013		2012
			(Dollars in millions)
Unrecognized compensation cost related to equity-based awards			$	94	$	98
Weighted-average life over which compensation cost is expected to be recognized (years)				2.1		2.0

Stock Options Activity Roll Forward

							Wtd. Avg.
			Wtd. Avg.		Aggregate		Remaining
			Exercise		Intrinsic		Contractual
		Options	Price		Value		Life
		(Dollars in millions, except per share data, shares in thousands)
Outstanding at January 1, 2013		45,391	$	34.15
	Granted	404		30.08
	Exercised	(3,507)		27.14
	Forfeited or expired	(4,292)		32.86
Outstanding at December 31, 2013		37,996		34.90	$	140	3.7	yrs
Exercisable at December 31, 2013		31,354		36.32		80	2.9
Exercisable and expected to vest at December 31, 2013		37,513		34.99		136	3.7

Restricted Shares and Restricted Share Units Activity Roll Forward

			Wtd. Avg.
		Restricted	Grant Date
		Shares/Units	Fair Value
		(shares in thousands)
Nonvested at January 1, 2013		13,931	$	19.26
	Granted	3,995		25.63
	Vested	(2,464)		22.05
	Forfeited	(281)		20.45
Nonvested at December 31, 2013		15,181		20.46
Expected to vest at December 31, 2013		13,763		20.49