Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
INTEREST INCOME
Loans		$ 1,066	$ 940
Loans held for sale		13	12
Securities available for sale		129	95
Held-to-maturity securities		68	69
Trading account assets		8	7
Short-term investments		16	8
Other investments		4	6
Total interest income		1,304	1,137
INTEREST EXPENSE
Deposits		202	91
Federal funds purchased and securities sold under repurchase agreements		1	4
Bank notes and other short-term borrowings		4	6
Long-term debt		120	92
Total interest expense		327	193
NET INTEREST INCOME		977	944
Provision for credit losses		62	61
Net interest income after provision for credit losses		915	883
NONINTEREST INCOME
Trust and investment services income		115	133
Investment banking and debt placement fees		110	143
Service charges on deposit accounts		82	89
Operating lease income and other leasing gains		37	32
Corporate services income		55	62
Cards and payments income		66	62
Corporate-owned life insurance income		32	32
Consumer mortgage income		8	7
Mortgage servicing fees		21	20
Other income	[1]	10	21
Total noninterest income		536	601
NONINTEREST EXPENSE
Personnel		563	594
Net occupancy		72	78
Computer processing		54	52
Business services and professional fees		44	41
Equipment		24	26
Operating lease expense		26	27
Marketing		19	25
FDIC assessment		7	21
Intangible asset amortization		22	29
OREO expense, net		3	2
Other expense		129	111
Total noninterest expense		963	1,006
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES		488	478
Income taxes		82	62
INCOME (LOSS) FROM CONTINUING OPERATIONS		406	416
Income (loss) from discontinued operations		1	2
NET INCOME (LOSS)		407	418
Less: Net income (loss) attributable to noncontrolling interests		0	0
NET INCOME (LOSS) ATTRIBUTABLE TO KEY		407	418
Income (loss) from continuing operations attributable to Key common shareholders		386	402
Net income (loss) attributable to Key common shareholders		$ 387	$ 404
Per Common Share:
Income (loss) from continuing operations attributable to Key common shareholders (in usd per share)		$ 0.38	$ 0.38
Income (loss) from discontinued operations, net of taxes (in usd per share)		0	0
Net income (loss) attributable to Key common shareholders (in usd per share)	[2]	0.38	0.38
Per Common Share — assuming dilution:
Income (loss) from continuing operations attributable to Key common shareholders (in usd per share)		0.38	0.38
Income (loss) from discontinued operations, net of taxes (in usd per share)		0	0
Net income (loss) attributable to Key common shareholders (in usd per share)	[2]	0.38	0.38
Cash dividends declared per common share (in usd per share)		$ 0.17	$ 0.105
Weighted-average common shares outstanding (000) (in shares)		1,006,717	1,056,037
Effect of common share options and other stock awards (in shares)		9,787	15,749
Weighted-average common shares and potential common shares outstanding (in shares)	[3]	1,016,504	1,071,786

[1] For the three months ended March 31, 2019, and March 31, 2018, net securities gains totaled less than $1 million. For the three months ended March 31, 2019, and March 31, 2018, we did not have any impairment losses related to securities.

[2] EPS may not foot due to rounding.

[3] Assumes conversion of Common Share options and other stock awards and/or convertible preferred stock, as applicable.