Consolidated Income Statement (USD $) Share data in Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Interest Income
Loans	$ 7,427,000,000		$ 7,866,000,000		$ 8,284,000,000
Investment securities	1,624,000,000		1,749,000,000		2,035,000,000
Other	380,000,000		392,000,000		415,000,000
Total interest income	9,431,000,000		10,007,000,000		10,734,000,000
Interest Expense
Deposits	325,000,000		344,000,000		386,000,000
Borrowed funds	581,000,000		516,000,000		708,000,000
Total interest expense	906,000,000		860,000,000		1,094,000,000
Net interest income	8,525,000,000		9,147,000,000		9,640,000,000
Noninterest Income
Asset management	1,513,000,000		1,342,000,000		1,169,000,000
Consumer services	1,254,000,000		1,253,000,000		1,136,000,000
Corporate services	1,415,000,000		1,210,000,000		1,166,000,000
Residential mortgage	618,000,000		871,000,000		284,000,000
Service charges on deposits	662,000,000		597,000,000		573,000,000
Net gains on sales of securities	4,000,000		99,000,000		204,000,000
Other-than-temporary impairments	(35,000,000)		(14,000,000)		(79,000,000)
Less: Noncredit portion of other-than-temporary impairments	(24,000,000)	[1]	2,000,000	[1]	32,000,000	[1]
Net other-than-temporary impairments	(11,000,000)		(16,000,000)		(111,000,000)
Other	1,395,000,000		1,509,000,000		1,451,000,000
Total noninterest income	6,850,000,000		6,865,000,000		5,872,000,000
Total revenue	15,375,000,000		16,012,000,000		15,512,000,000
Provision For Credit Losses	273,000,000		643,000,000		987,000,000
Noninterest Expense
Personnel	4,611,000,000		4,743,000,000		4,617,000,000
Occupancy	833,000,000		833,000,000		827,000,000
Equipment	859,000,000		763,000,000		735,000,000
Marketing	253,000,000		246,000,000		279,000,000
Other	2,932,000,000	[2]	3,096,000,000	[2]	4,028,000,000	[2]
Total noninterest expense	9,488,000,000		9,681,000,000		10,486,000,000
Income (loss) before income taxes and noncontrolling interests	5,614,000,000		5,688,000,000		4,039,000,000
Income taxes	1,407,000,000	[2]	1,476,000,000	[2]	1,045,000,000	[2]
Net income	4,207,000,000	[2],[3]	4,212,000,000	[2],[3],[4]	2,994,000,000	[2],[3],[4]
Net income (loss) attributable to noncontrolling interests	23,000,000	[2]	11,000,000	[2]	(7,000,000)	[2]
Preferred stock dividends	232,000,000		237,000,000		177,000,000
Preferred stock discount accretion and redemptions	5,000,000		12,000,000		4,000,000
Net income attributable to common shareholders	$ 3,947,000,000		$ 3,952,000,000		$ 2,820,000,000
Earnings Per Common Share
Basic	$ 7.44		$ 7.45		$ 5.33
Diluted	$ 7.3		$ 7.36		$ 5.28
Average Common Shares Outstanding
Basic	529		528		526
Diluted	537		532		529

[1] Included in accumulated other comprehensive income (loss).

[2] Amounts for 2012 and 2013 periods have been updated to reflect the first quarter 2014 adoption of Accounting Standards Update (ASU) 2014-01 related to investments in low income housing tax credits.

[3] (a) Amounts for 2013 and 2012 periods have been updated to reflect the first quarter 2014 adoption of ASU 2014-01 related to investments in low income housing tax credits.

[4] Amounts for 2012 and 2013 periods have been updated to reflect the first quarter 2014 adoption of ASU 2014-01 related to investments in low income housing tax credits. See Note 1 Accounting Policies for further detail of the adoption.