Consolidated Statements of Shareholders' Equity (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Common stock dividends, per share	$ 0.10		$ 0.05
Treasury Stock, Value	$ (643)	[1]
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	31		447
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	229		461
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(460)		(723)
Treasury Stock and Other
Treasury Stock, Value	(727)		(569)
Deferred Compensation Equity	(42)		(76)
Stockholders' Equity Attributable to Noncontrolling Interest	$ 126		$ 114
Series A Preferred Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid	$ 1,000		$ 1,000
Series B Preferred Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid	$ 1,000		$ 1,000
Series E Preferred Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid	$ 1,469		$ 1,387

[1] Includes noncontrolling interest of $126 million and $119 million at March 31, 2014 and December 31, 2013, respectively.