Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2018		Jun. 30, 2017		Jun. 30, 2018		Jun. 30, 2017
Interest Income
Interest and Fee Income, Loans and Leases Held-in-portfolio		$ 1,476		$ 1,338		$ 2,874		$ 2,628
Interest and fees on loans held for sale		24		21		45		46
Interest and Dividend Income, Securities, Available-for-sale	[1],[2]	210		187		416		369
Trading account interest and other	[2]	49		37		92		68
Total interest income		1,759		1,583		3,427		3,111
Interest Expense
Interest Expense, Deposits		159		95		291		175
Interest Expense, Long-term Debt		83		70		157		139
Interest on other borrowings		29		15		51		28
Total interest expense		271		180		499		342
Net, interest income		1,488		1,403	[3],[4]	2,928		2,769	[5],[6]
Provision for Loan, Lease, and Other Losses		32	[7]	90	[3],[4],[8]	60	[9]	209	[5],[6],[10]
Interest Income (Expense), after Provision for Loan Loss		1,456		1,313		2,868		2,560
Noninterest Income
Service charges on deposit accounts		144	[11]	151	[12]	289	[13]	299	[14]
Fees and Commissions, Other		93	[11]	103	[12]	179	[13]	198	[14]
Fees and Commissions, Credit and Debit Cards		85	[11]	87	[12]	166	[13]	169	[14]
Investment Banking Revenue		167	[11]	147	[12]	298	[13]	314	[14]
Trading Gain (Loss)		53	[11]	46	[12]	95	[13]	97	[14]
Fees and Commissions, Fiduciary and Trust Activities		75	[11]	76	[12]	150	[13]	151	[14]
Investment Advisory, Management and Administrative Fees		73	[11]	70	[12]	145	[13]	139	[14]
Fees and Commissions, Mortgage Banking		43	[11]	56	[12]	79	[13]	109	[14]
Servicing Fees, Net		(40)	[11]	(44)	[12]	(95)	[13]	(102)	[14]
commercial real estate related income		18	[11]	24	[12]	42	[13]	44	[14]
Gain (Loss) on Sale of Securities, Net		0	[11]	1	[12]	1	[13]	1	[14]
Noninterest Income, Other Operating Income		38	[11]	22	[12]	87	[13]	51	[14]
Total noninterest income		829	[11]	827	[3],[4],[12]	1,626	[13]	1,674	[5],[6],[14]
Noninterest Expense
Employee compensation		714		710		1,422		1,427
Other Labor-related Expenses		88		86		234		221
Outside processing and software		227		204		433		409
Net occupancy expense		90		94		184		185
Federal Deposit Insurance Corporation Premium Expense		39		49		79		97
Marketing and Advertising Expense		40		42		81		84
Equipment Expense		44		43		84		83
Operating losses		17		19		23		51
Amortization		17		15		32		28
Other Noninterest Expense		114		126		235		268
Noninterest Expense		1,390		1,388	[3],[4]	2,807		2,853	[5],[6]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest		895		752		1,687		1,381
Income Tax Expense (Benefit)		171		222		318		381
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		724		530	[3],[4]	1,369		1,000	[5],[6]
Net Income (Loss) Attributable to Noncontrolling Interest		2		2	[3],[4]	4		5	[5],[6]
Net Income (Loss) Attributable to Parent		722		528	[3],[4]	1,365		995	[5],[6]
Dividends, Preferred Stock, Cash		25		23		55	[15]	39	[15]
Net Income (Loss) Available to Common Stockholders, Basic		$ 697		$ 505		$ 1,310		$ 956
Earnings Per Share, Diluted		$ 1.49		$ 1.03		$ 2.78		$ 1.94
Earnings Per Share, Basic		1.50		1.05		2.80		1.97
Common Stock, Dividends, Per Share, Declared		$ 0.40		$ 0.26		$ 0.80		$ 0.52
Weighted Average Number of Shares Outstanding, Diluted		469,339		488,020		471,468		491,989
Weighted Average Number of Shares Outstanding, Basic		465,529		482,913		467,117		486,482

[1] Beginning January 1, 2018, the Company reclassified equity securities previously presented in Securities available for sale to Other assets on the Consolidated Balance Sheets and began presenting income associated with certain of these equity securities in Trading account interest and other on the Consolidated Statements of Income. For periods prior to January 1, 2018, income associated with these equity securities was presented in Interest on securities available for sale and has been reclassified to Trading account interest and other for comparability.

[2] Beginning January 1, 2018, the Company reclassified equity securities previously presented in Securities available for sale to Other assets on the Consolidated Balance Sheets and began presenting income associated with certain of these equity securities in Trading account interest and other. For periods prior to January 1, 2018, income associated with these equity securities was presented in Interest on securities available for sale and has been reclassified to Trading account interest and other for comparability.

[3] During the fourth quarter of 2017, the Company sold PAC, the results of which were previously reported within the Wholesale business segment. For all periods prior to January 1, 2018, PAC's financial results, including the gain on sale, have been transferred to Corporate Other for enhanced comparability of the Wholesale business segment excluding PAC.

[4] During the second quarter of 2018, certain of the Company's business banking clients were transferred from the Wholesale business segment to the Consumer business segment. For all periods prior to the second quarter of 2018, the corresponding financial results have been transferred to the Consumer business segment for comparability purposes.

[5] During the fourth quarter of 2017, the Company sold PAC, the results of which were previously reported within the Wholesale business segment. For all periods prior to January 1, 2018, PAC's financial results, including the gain on sale, have been transferred to Corporate Other for enhanced comparability of the Wholesale business segment excluding PAC.

[6] During the second quarter of 2018, certain of the Company's business banking clients were transferred from the Wholesale business segment to the Consumer business segment. For all periods prior to the second quarter of 2018, the corresponding financial results have been transferred to the Consumer business segment for comparability purposes.

[7] Provision for credit losses represents net charge-offs by segment combined with an allocation to the segments for the provision attributable to quarterly changes in the ALLL and unfunded commitment reserve balances.

[8] Provision for credit losses represents net charge-offs by segment combined with an allocation to the segments for the provision attributable to quarterly changes in the ALLL and unfunded commitment reserve balances.

[9] Provision/(benefit) for credit losses represents net charge-offs by segment combined with an allocation to the segments for the provision/(benefit) attributable to quarterly changes in the ALLL and unfunded commitment reserve balances.

[10] Provision for credit losses represents net charge-offs by segment combined with an allocation to the segments for the provision attributable to quarterly changes in the ALLL and unfunded commitment reserve balan

[11] Amounts are presented in accordance with ASC Topic 606, Revenue from Contracts with Customers, except for out of scope amounts.

[12] Amounts for periods prior to January 1, 2018 are presented in accordance with ASC Topic 605, Revenue Recognition, and have not been restated to conform with ASC Topic 606, Revenue from Contracts with Customers.

[13] Amounts are presented in accordance with ASC Topic 606, Revenue from Contracts with Customers, except for out of scope amounts.

[14] Amounts for periods prior to January 1, 2018 are presented in accordance with ASC Topic 605, Revenue Recognition, and have not been restated to conform with ASC Topic 606, Revenue from Contracts with Customers.

[15] For the six months ended June 30, 2018, dividends were $2,022 per share for both Series A and B Preferred Stock, $1,469 per share for Series E Preferred Stock, $2,813 per share for Series F Preferred Stock, $2,525 per share for Series G Preferred Stock, and $3,004 per share for Series H Preferred Stock.For the six months ended June 30, 2017, dividends were $2,022 per share for both Series A and B Preferred Stock, $2,938 per share for Series E Preferred Stock, $2,813 per share for Series F Preferred Stock, and $828 per share for Series G Preferred Stock.