Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
INTEREST INCOME
Loans		$ 837	$ 889
Loans held for sale		12	11
Securities available for sale		173	130
Held-to-maturity securities		46	45
Trading account assets		6	5
Short-term investments		4	5
Other investments		2	2
Total interest income		1,080	1,087
INTEREST EXPENSE
Deposits		14	21
Federal funds purchased and securities sold under repurchase agreements		0	0
Bank notes and other short-term borrowings		3	1
Long-term debt		49	60
Total interest expense		66	82
NET INTEREST INCOME		1,014	1,005
Provision for credit losses		83	(93)
Net interest income after provision for credit losses		931	1,098
NONINTEREST INCOME
Trust and investment services income		136	133
Investment banking and debt placement fees		163	162
Service charges on deposit accounts		91	73
Operating lease income and other leasing gains		32	38
Corporate services income		90	64
Cards and payments income		80	105
Corporate-owned life insurance income		31	31
Consumer mortgage income		21	47
Commercial mortgage servicing fees		36	34
Other income	[1]	(4)	51
Total noninterest income		676	738
NONINTEREST EXPENSE
Personnel		630	624
Net occupancy		73	76
Computer processing		77	73
Business services and professional fees		53	50
Equipment		23	25
Operating lease expense		28	34
Marketing		28	26
Other expense		158	163
Total noninterest expense		1,070	1,071
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES		537	765
Income taxes		90	147
INCOME (LOSS) FROM CONTINUING OPERATIONS		447	618
Income (loss) from discontinued operations		1	4
NET INCOME (LOSS)		448	622
Less: Net income (loss) attributable to noncontrolling interests		0	0
NET INCOME (LOSS) ATTRIBUTABLE TO KEY		448	622
Income (loss) from continuing operations attributable to Key common shareholders		420	591
Net income (loss) attributable to Key common shareholders		$ 421	$ 595
Per Common Share:
Income (loss) from continuing operations attributable to Key common shareholders (in usd per share)		$ 0.45	$ 0.61
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]	0.46	0.62
Per Common Share — assuming dilution:
Income (loss) from continuing operations attributable to Key common shareholders (in usd per share)		0.45	0.61
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]	0.45	0.61
Cash dividends declared per common share (in usd per share)		$ 0.195	$ 0.185
Weighted-average common shares outstanding (000) (in shares)		922,941	964,878
Effect of common share options and other stock awards (in shares)		10,692	9,419
Weighted-average common shares and potential common shares outstanding (in shares)	[3]	933,634	974,297

[1] For the three months ended March 31, 2022, and March 31, 2021, we had no net securities gains (losses). For the three months ended March 31, 2022, and March 31, 2021, 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.