Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions		3 Months Ended
		Mar. 31, 2019		Mar. 31, 2018
Interest Income
Interest and Fee Income, Loans and Leases Held-in-portfolio		$ 1,697		$ 1,398
Interest and fees on loans held for sale		13		21
Interest and Dividend Income, Securities, Available-for-sale		221		206
Trading account interest and other		56		43
Total interest income		1,987		1,668
Interest Expense
Interest Expense, Deposits		249		131
Interest Expense, Long-term Debt		125		74
Interest on other borrowings		69		22
Total interest expense		443		227
Net, interest income		1,544		1,441	[1]
Provision for Loan, Lease, and Other Losses		153	[2]	28	[1],[3]
Interest Income (Expense), after Provision for Loan Loss		1,391		1,413
Noninterest Income
Service charges on deposit accounts		137		146
Other charges and fees	[4]	87		85
Card fees		82		81
Investment Banking Revenue	[4]	130		133
Trading Gain (Loss)		60		42
Mortgage Related Income	[5]	100		90
Trust and investment management income		71		75
Retail investment services		69		72
Commercial Real Estate Related Income		24		23
Debt and Equity Securities, Gain (Loss)		0		1
Noninterest Income, Other Operating Income		24		48
Noninterest Income		784		796	[1]
Noninterest Expense
Employee compensation		676		707
Other Labor-related Expenses		148		146
Outside processing and software		238		206
Net occupancy expense		102		94
Merger-Related Costs		45		0
Marketing and Advertising Expense		41		41
Equipment Expense		42		40
Federal Deposit Insurance Corporation Premium Expense		19		41
Operating losses		22		6
Amortization		15		15
Other Noninterest Expense		141		121
Noninterest Expense		1,489		1,417	[1]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest		686		792
Income Tax Expense (Benefit)		104		147
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		582		645	[1]
Net Income (Loss) Attributable to Noncontrolling Interest		2		2	[1]
Net Income (Loss) Attributable to Parent		580		643	[1]
Preferred Stock Dividends and Other Adjustments		26		31
Net Income (Loss) Available to Common Stockholders, Basic		$ 554		$ 612
Earnings Per Share, Diluted		$ 1.24		$ 1.29
Earnings Per Share, Basic		1.25		1.31
Common Stock, Dividends, Per Share, Declared		$ 0.50		$ 0.40
Weighted Average Number of Shares Outstanding, Diluted		446,662		473,620
Weighted Average Number of Shares Outstanding, Basic		443,566		468,723

[1] 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.

[2] 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.

[3] 3 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.

[4] Beginning July 1, 2018, the Company began presenting bridge commitment fee income related to capital market transactions in Investment banking income on the Consolidated Statements of Income. For periods prior to July 1, 2018, this income was previously presented in Other charges and fees and has been reclassified to Investment banking income for comparability.

[5] Beginning with the 2018 Form 10-K, the Company began presenting Mortgage production related income and Mortgage servicing related income as a single line item on the Consolidated Statements of Income titled Mortgage related income. Prior periods have been conformed to this updated presentation for comparability.