Accumulated Other Comprehensive Income Reclassifications out of AOCI (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax	$ (2)		$ (2,279)	[1]	$ (117)	[1]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	1		810	[1]	43	[1]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	(1)		(1,469)	[1]	(74)	[1]
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax	(417)		(143)		(625)
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax	154		53		231
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax	(263)		(90)		(394)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	399		(95)		(382)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	(147)		35		141
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	252		(60)		(241)
Other Assets And Liabilities, Net [Member]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	373	[2]	(122)	[2]	(318)	[2]
Net securities gains [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax	(2)		(2,279)		(117)
provision for income taxes [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	1		810		43
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax	154		53		231
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	(147)		35		141
Interest Income, Interest and Fees on Loans
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax	(417)		(143)		(625)
employee benefits [Member]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	$ 26		$ 27		$ (64)

[1] Excludes $305 million of losses related to derivatives associated with the Coke Agreements termination that was recorded in securities gains on the Consolidated Statements of Income.

[2] This AOCI component is recognized as an adjustment to the funded status of employee benefit plans in the Company's Consolidated Balance Sheets. (For additional information, see Note 15, "Employee Benefit Plans").