Consolidated Statements of Shareholders' Equity (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Common stock dividends, per share	$ 0.35		$ 0.20		$ 0.12
Treasury Stock, Value	$ (615)	[1]	$ (590)	[1]
Stockholders' Equity Attributable to Noncontrolling Interest	119		114
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(77)		520		1,863
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	279		532		569
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(491)		(743)		(683)
Treasury Stock and Other
Treasury Stock, Value	(684)		(656)		(851)
Deferred Compensation Equity	(50)		(48)		(48)
Stockholders' Equity Attributable to Noncontrolling Interest			$ 114		$ 107
Series A Preferred Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid	$ 4,056		$ 4,052		$ 4,056
Series B Preferred Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid	$ 4,056		$ 4,052
Series E Preferred Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid	$ 5,793		$ 0
Series C and Series D Preferred Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid					$ 1,236

[1] 4 Includes noncontrolling interest of $119 million and $114 million at December 31, 2013 and 2012, respectively.